--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+
+$Id$
+*/
+
+/*
+ A base geometry class defining all of the ITS volumes that make up an ITS
+geometry.
+Auhors: B. S. Nilsen
+Version 0
+Created February 2003.
+*/
+
+#include <Riostream.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <TMath.h>
+#include <TGeometry.h>
+#include <TNode.h>
+#include <TTUBE.h>
+#include <TTUBS.h>
+#include <TPCON.h>
+#include <TFile.h> // only required for Tracking function?
+#include <TCanvas.h>
+#include <TObjArray.h>
+#include <TLorentzVector.h>
+#include <TObjString.h>
+#include <TClonesArray.h>
+#include <TBRIK.h>
+#include <TSystem.h>
+#include <AliRun.h>
+#include <AliMagF.h>
+#include <AliConst.h>
+#include "AliITSBaseGeometry.h"
+
+ClassImp(AliITSBaseGeometry)
+//______________________________________________________________________
+AliITSBaseGeometry::AliITSBaseGeometry(){
+ // Default construtor for the ITS Base Geometry class.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ fScale = 1.0; // Default value.
+ fits = 0; // zero pointers.
+ fNCreates++; // incrament this creation counter.
+}
+//______________________________________________________________________
+AliITSBaseGeometry::AliITSBaseGeometry(AliModule *its,Int_t iflag){
+ // Standard construtor for the ITS Base Geometry class.
+ // Inputs:
+ // Int_t iflag flag to indecate specific swiches in the geometry
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ fScale = 1.0; // Default value.
+ fits = its; // get a copy of the pointer to the ITS.
+ fNCreates++; // incrament this creation counter.
+}
+//______________________________________________________________________
+AliITSBaseGeometry::~AliITSBaseGeometry(){
+ // Standeard destructor for the ITS Base Geometry class.
+ // Inputs:
+ // Int_t iflag flag to indecate specific swiches in the geometry
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ fits = 0; // This class does not own this class. It contaitns a pointer
+ // to it for conveniance.
+ fidmed = 0; // This class does not own this array of media indexs. It
+ fNCreates--;
+ if(fNCreates==0){ // Now delete the static members
+ Int_t i;
+ if(fVolName!=0){
+ for(i=0;i<fVolNameLast;i++) delete fVolName[i];
+ fVolNameSize = 0;
+ fVolNameLast = 0;
+ delete[] fVolName;
+ }// end if
+ delete[] fidrot;
+ fidrotsize = fidrotlast = 0;
+ }// end if
+}
+//______________________________________________________________________
+Int_t AliITSBaseGeometry::AddVolName(const TString name){
+ // Checks if the volume name already exist, if not it adds it to
+ // the list of volume names and returns an index to that volume name.
+ // it will create and expand the array of volume names as needed.
+ // If the volume name already exists, it will give an error message and
+ // return an index <0.
+ // Inputs:
+ // const TString name Volume name to be added to the list.
+ // Outputs:
+ // none.
+ // Return:
+ // The index where this volume name is stored.
+ Int_t i;
+
+ if(fVolName==0){ // must create array.
+ fVolNameSize = 1000;
+ fVolName = new TString[fVolNameSize];
+ fVolNameLast = 0;
+ } // end if
+ for(i=0;i<fVolNameLast;i++) if(fVolName[i].CompareTo(name)==0){ // Error
+ Error("AddVolName","Volume name already exists for volume %d",i);
+ return -1;
+ } // end for i
+ if(fVolNameSize==fVolNameLast-1){ // Array is full must expand.
+ Int_t size = fVolNameSize*2;
+ TString *old = fVolName;
+ fVolName = new TString[fVolNameSize];
+ for(i=0;i<fVolNameLast;i++) fVolName[i] = old[i];
+ delete[] old;
+ fVolNameSize = size;
+ } // end if
+ if(strcmp(ITSIndexToITSG3name(fVolNameLast),"ITSV")==0){
+ // Special Reserved Geant 3 volumen name. Skip it
+ // fill it with explination for conveniance.
+ fVolName[fVolNameLast] = "ITS Master Mother Volume";
+ fVolNameLast++;
+ } // end if
+ fVolName[fVolNameLast] = name;
+ fVolNameLast++;
+ return fVolNameLast-1; // return the index
+}
+//______________________________________________________________________
+char* AliITSBaseGeometry::ITSIndexToITSG3name(const Int_t i){
+ // Given the ITS volume index i, it returns the Geant3 ITS volume
+ // name. The valid characters must be in the range
+ // '0' through 'Z'. This will include all upper case letter and the
+ // numbers 0-9. In addition it does not will include the following simbols
+ // ":;<=>?@"
+ // Inputs:
+ // const Int_t i the ITS volume index
+ // Output:
+ // none.
+ // Return:
+ // char[4] with the ITS volume name starting from "I000" to "IZZZ"
+ const Int_t rangen=(Int_t)('9'-'0'+1); // range of numbers
+ const Int_t rangel=(Int_t)('Z'-'A'+1); // range of letters
+ const Int_t range = rangen+rangel; // the number of characters between
+ // 0-9 and A-Z.
+ char a[4];
+ Int_t j = i;
+
+ a[0] = (char)('I');
+ a[1] = (char)('0'+j/(range*range));
+ if(a[1]>'9') a[1] += 'A'-'0'; // if it is a letter add in gap for simples.
+ j -= range*range*(a[1]-'0');
+ a[2] = (char)('0'+j/range);
+ if(a[2]>'9') a[2] += 'A'-'0'; // if it is a letter add in gap for simples.
+ j -= range*(a[2]-'0');
+ a[3] = (char)('0'+j);
+ if(a[3]>'9') a[3] += 'A'-'0'; // if it is a letter add in gap for simples.
+ return a;
+}
+//______________________________________________________________________
+Int_t AliITSBaseGeometry::ITSG3VnameToIndex(const char name[3])const{
+ // Given the last three characters of the ITS Geant3 volume name,
+ // this returns the index. The valid characters must be in the range
+ // '0' through 'Z'. This will include all upper case letter and the
+ // numbers 0-9. In addition it will include the following simbles
+ // ":;<=>?@"
+ // Inputs:
+ // const char name[3] The last three characters of the ITS Geant3
+ // volume name
+ // Output:
+ // none.
+ // Return:
+ // Int_t the index.
+ const Int_t rangen=(Int_t)('9'-'0'+1); // range of numbers
+ const Int_t rangel=(Int_t)('Z'-'A'+1); // range of letters
+ const Int_t range = rangen+rangel; // the number of characters between
+ // 0-9 and A-Z.
+ Int_t i,j;
+
+ i = 0;
+ for(j=3;j>-1;j--){
+ if(isdigit(name[j])){ // number
+ i += (Int_t)(name[j]-'0')*TMath::Power(range,(Double_t)j);
+ }else{ // Letter
+ i += (Int_t)(name[j]-'A'+rangen)*TMath::Power(range,(Double_t)j);
+ } // end if
+ } // end for j
+ return i;
+}
+//______________________________________________________________________
+TString AliITSBaseGeometry::GetVolName(const Int_t i)const{
+ // Returns the volume name at a given index i. Index must be in
+ // range and the array of volume names must exist. If there is an
+ // error, a message is written and 0 is returned.
+ // Inputs:
+ // const Int_t i Index
+ // Output:
+ // none.
+ // Return:
+ // A TString contianing the ITS volume name.
+
+ if(i<0||i>=fVolNameLast){
+ Error("GetVolName","Index=%d out of range but be witin 0<%d",i,
+ fVolName-1);
+ return 0;
+ } // end if Error
+ return fVolName[i];
+}
+//______________________________________________________________________
+Int_t AliITSBaseGeometry::GetVolumeIndex(const TString &a){
+ // Return the index corresponding the the volume name a. If the
+ // Volumen name is not found, return -1, and a warning message given.
+ // Inputs:
+ // const TString &a Name of volume for which index is wanted.
+ // Output:
+ // none.
+ // Return:
+ // Int_t Index corresponding the volume a. If not found -1 is returned.
+ Int_t i;
+
+ for(i=0;i<fVolNameLast;i++) if(fVolName[i].CompareTo(a)==0) return i;
+ Info("GetVolumeIndex","Volume name %s not found",a.Data());
+ return -1;
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Box(const char gnam[3],const TString &dis,
+ Double_t dx,Double_t dy,Double_t dz,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS bos geometries. Box with faces
+ // perpendicular to the axes. It has 3 paramters. See SetScale() for
+ // units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dx half-length of box in x-axis
+ // Double_t dy half-length of box in y-axis
+ // Double_t dz half-length of box in z-axis
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[3];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dx;
+ param[1] = fScale*dy;
+ param[2] = fScale*dz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"BOX ",fidmed[med],param,3);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Trapezoid1(const char gnam[3],const TString &dis,
+ Double_t dxn,Double_t dxp,Double_t dy,
+ Double_t dz,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS TRD1 geometries. Trapezoid with the
+ // x dimension varing along z. It has 4 parameters. See SetScale() for
+ // units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dxn half-length along x at the z surface positioned
+ // at -DZ
+ // Double_t dxp half-length along x at the z surface positioned
+ // at +DZ
+ // Double_t dy half-length along the y-axis
+ // Double_t dz half-length along the z-axis
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[4];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dxn;
+ param[1] = fScale*dxp;
+ param[2] = fScale*dy;
+ param[3] = fScale*dz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"TRD1",fidmed[med],param,4);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Trapezoid2(const char gnam[3],const TString &dis,
+ Double_t dxn,Double_t dxp,Double_t dyn,
+ Double_t dyp,Double_t dz,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS TRD2 geometries. Trapezoid with the
+ // x and y dimension varing along z. It has 5 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dxn half-length along x at the z surface positioned
+ // at -DZ
+ // Double_t dxp half-length along x at the z surface positioned
+ // at +DZ
+ // Double_t dyn half-length along x at the z surface positioned
+ // at -DZ
+ // Double_t dyp half-length along x at the z surface positioned
+ // at +DZ
+ // Double_t dz half-length along the z-axis
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[5];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dxn;
+ param[1] = fScale*dxp;
+ param[2] = fScale*dyn;
+ param[3] = fScale*dyp;
+ param[4] = fScale*dz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"TRD2",fidmed[med],param,5);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Trapezoid(const char gnam[3],const TString &dis,
+ Double_t dz,Double_t thet,Double_t phi,
+ Double_t h1,Double_t bl1,Double_t tl1,
+ Double_t alp1,Double_t h2,Double_t bl2,
+ Double_t tl2,Double_t alp2,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS TRAP geometries. General Trapezoid,
+ // The faces perpendicular to z are trapezia and their centers are not
+ // necessarily on a line parallel to the z axis. This shape has 11
+ // parameters, but only cosidering that the faces should be planar, only 9
+ // are really independent. A check is performed on the user parameters and
+ // a message is printed in case of non-planar faces. Ignoring this warning
+ // may cause unpredictable effects at tracking time. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dz Half-length along the z-asix
+ // Double_t thet Polar angle of the line joing the center of the
+ // face at -dz to the center of the one at dz
+ // [degree].
+ // Double_t phi aximuthal angle of the line joing the center of
+ // the face at -dz to the center of the one at +dz
+ // [degree].
+ // Double_t h1 half-length along y of the face at -dz.
+ // Double_t bl1 half-length along x of the side at -h1 in y of
+ // the face at -dz in z.
+ // Double_t tl1 half-length along x of teh side at +h1 in y of
+ // the face at -dz in z.
+ // Double_t alp1 angle with respect to the y axis from the center
+ // of the side at -h1 in y to the cetner of the
+ // side at +h1 in y of the face at -dz in z
+ // [degree].
+ // Double_t h2 half-length along y of the face at +dz
+ // Double_t bl2 half-length along x of the side at -h2 in y of
+ // the face at +dz in z.
+ // Double_t tl2 half-length along x of the side at _h2 in y of
+ // the face at +dz in z.
+ // Double_t alp2 angle with respect to the y axis from the center
+ // of the side at -h2 in y to the center of the
+ // side at +h2 in y of the face at +dz in z
+ // [degree].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[11];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dz;
+ param[1] = thet;
+ param[2] = phi;
+ param[3] = fScale*h1;
+ param[4] = fScale*bl1;
+ param[5] = fScale*tl1;
+ param[6] = alp1;
+ param[7] = fScale*h2;
+ param[8] = fScale*bl2;
+ param[9] = fScale*tl2;
+ param[10] = alp2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"TRAP",fidmed[med],param,11);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Tube(const char gnam[3],const TString &dis,
+ Double_t rmin,Double_t rmax,Double_t dz,
+ Int_t med){
+ // Interface to TMC->Gsvolu() for ITS TUBE geometries. Simple Tube. It has
+ // 3 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t rmin Inside Radius.
+ // Double_t rmax Outside Radius.
+ // Double_t dz half-length along the z-axis
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[3];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*rmin;
+ param[1] = fScale*rmax;
+ param[2] = fScale*dz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"TUBE",fidmed[med],param,3);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::TubeSegment(const char gnam[3],const TString &dis,
+ Double_t rmin,Double_t rmax,Double_t dz,
+ Double_t phi1,Double_t phi2,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS TUBE geometries. Phi segment of a
+ // tube. It has 5 parameters. Phi1 should be smaller than phi2. If this is
+ // not the case, the system adds 360 degrees to phi2. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t rmin Inside Radius.
+ // Double_t rmax Outside Radius.
+ // Double_t dz half-length along the z-axis
+ // Double_t phi1 Starting angle of the segment [degree].
+ // Double_t phi2 Ending angle of the segment [degree].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[5];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*rmin;
+ param[1] = fScale*rmax;
+ param[2] = fScale*dz;
+ param[3] = phi1;
+ param[4] = phi2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"TUBS",fidmed[med],param,5);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Cone(const char gnam[3],const TString &dis,
+ Double_t dz,Double_t rmin1,Double_t rmax1,
+ Double_t rmin2,Double_t rmax2,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS Cone geometries. Conical tube. It
+ // has 5 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dz half-length along the z-axis
+ // Double_t rmin1 Inside Radius at -dz.
+ // Double_t rmax1 Outside Radius at -dz.
+ // Double_t rmin2 inside radius at +dz.
+ // Double_t rmax2 outside radius at +dz.
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[5];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dz;
+ param[1] = fScale*rmin1;
+ param[2] = fScale*rmax1;
+ param[3] = fScale*rmin2;
+ param[4] = fScale*rmax2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"CONS",fidmed[med],param,5);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::ConeSegment(const char gnam[3],const TString &dis,
+ Double_t dz,Double_t rmin1,Double_t rmax1,
+ Double_t rmin2,Double_t rmax2,
+ Double_t phi1,Double_t phi2,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS ConS geometries. One segment of a
+ // conical tube. It has 7 parameters. Phi1 should be smaller than phi2. If
+ // this is not the case, the system adds 360 degrees to phi2. See
+ // SetScale() for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dz half-length along the z-axis
+ // Double_t rmin1 Inside Radius at -dz.
+ // Double_t rmax1 Outside Radius at -dz.
+ // Double_t rmin2 inside radius at +dz.
+ // Double_t rmax2 outside radius at +dz.
+ // Double_t phi1 Starting angle of the segment [degree].
+ // Double_t phi2 Ending angle of the segment [degree].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[7];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dz;
+ param[1] = fScale*rmin1;
+ param[2] = fScale*rmax1;
+ param[3] = fScale*rmin2;
+ param[4] = fScale*rmax2;
+ param[5] = phi1;
+ param[6] = phi2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"CONS",fidmed[med],param,7);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Sphere(const char gnam[3],const TString &dis,
+ Double_t rmin,Double_t rmax,Double_t the1,
+ Double_t the2,Double_t phi1,Double_t phi2,
+ Int_t med){
+ // Interface to TMC->Gsvolu() for ITS SPHE geometries. Segment of a
+ // sphereical shell. It has 6 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t rmin Inside Radius.
+ // Double_t rmax Outside Radius.
+ // Double_t the1 staring polar angle of the shell [degree].
+ // Double_t the2 ending polar angle of the shell [degree].
+ // Double_t phui staring asimuthal angle of the shell [degree].
+ // Double_t phi2 ending asimuthal angle of the shell [degree].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[6];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*rmin;
+ param[1] = fScale*rmax;
+ param[2] = the1;
+ param[3] = the2;
+ param[4] = phi1;
+ param[5] = phi2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"SPHE",fidmed[med],param,6);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Parallelepiped(const char gnam[3],const TString &dis,
+ Double_t dx,Double_t dy,Double_t dz,
+ Double_t alpha,Double_t thet,
+ Double_t phi,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS PARA geometries. Parallelepiped. It
+ // has 6 parameters. See SetScale() for units. Default units are geant 3
+ // [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dx half-length allong x-axis
+ // Double_t dy half-length allong y-axis
+ // Double_t dz half-length allong z-axis
+ // Double_t alpha angle formed by the y axis and by the plane
+ // joining the center of teh faces parallel to the
+ // z-x plane at -dY and +dy [degree].
+ // Double_t thet polar angle of the line joining the centers of
+ // the faces at -dz and +dz in z [degree].
+ // Double_t phi azimuthal angle of teh line joing the centers of
+ // the faaces at -dz and +dz in z [degree].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[6];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dx;
+ param[1] = fScale*dy;
+ param[2] = fScale*dz;
+ param[3] = alpha;
+ param[4] = thet;
+ param[5] = phi;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"PARA",fidmed[med],param,6);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Polygon(const char gnam[3],const TString &dis,
+ Double_t phi1,Double_t dphi,Int_t npdv,
+ Int_t nz,Double_t *z,Double_t *rmin,
+ Double_t *rmax,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS PGON geometry. Polygon It has 10
+ // parameters or more. See SetScale() for units. Default units are geant 3
+ // [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t phi1 the azimuthal angle at which the volume begins
+ // (angles are counted clouterclockwise) [degrees].
+ // Double_t dphi opening angle of the volume, which extends from
+ // phi1 to phi1+dphi [degree].
+ // Int_t npdv the number of sides of teh cross section between
+ // the given phi limits.
+ // Int_t nz number of planes perpendicular to the z axis
+ // where the dimension of the section is given -
+ // this number should be at least 2 and NP triples
+ // of number must follow.
+ // Double_t *z array [nz] of z coordiates of the sections..
+ // Double_t *rmin array [nz] of radius of teh circle tangent to
+ // the sides of the inner polygon in teh
+ // cross-section.
+ // Double_t *rmax array [nz] of radius of the circle tangent to
+ // the sides of the outer polygon in the
+ // cross-section.
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t *param;
+ Int_t n,i;
+
+ if(fidmed==0) SetMedArray();
+ n = 4+3*nz;
+ param = new Float_t[n];
+ param[0] = phi1;
+ param[1] = dphi;
+ param[2] = (Float_t)npdv;
+ param[3] = (Float_t)nz;
+ for(i=0;i<nz;i++){
+ param[4+3*i] = z[i];
+ param[5+3*i] = rmin[i];
+ param[6+3*i] = rmax[i];
+ } // end for i
+ name[3] = 'I';
+ for(i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"PGON",fidmed[med],param,n);
+
+ delete[] param;
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::PolyCone(const char gnam[3],const TString &dis,
+ Double_t phi1,Double_t dphi,Int_t nz,
+ Double_t *z,Double_t *rmin,Double_t *rmax,
+ Int_t med){
+ // Interface to TMC->Gsvolu() for ITS PCON geometry. Poly-cone It has 9
+ // parameters or more. See SetScale() for units. Default units are geant 3
+ // [cm].
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t phi1 the azimuthal angle at which the volume begins
+ // (angles are counted clouterclockwise) [degrees].
+ // Double_t dphi opening angle of the volume, which extends from
+ // phi1 to phi1+dphi [degree].
+ // Int_t nz number of planes perpendicular to the z axis
+ // where the dimension of the section is given -
+ // this number should be at least 2 and NP triples
+ // of number must follow.
+ // Double_t *z Array [nz] of z coordinate of the section.
+ // Double_t *rmin Array [nz] of radius of teh inner circle in the
+ // cross-section.
+ // Double_t *rmax Array [nz] of radius of the outer circle in the
+ // cross-section.
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t *param;
+ Int_t n,i;
+
+ if(fidmed==0) SetMedArray();
+ n = 3+3*nz;
+ param = new Float_t[n];
+ param[0] = phi1;
+ param[1] = dphi;
+ param[2] = (Float_t) nz;
+ for(i=0;i<nz;i++){
+ param[3+3*i] = z[i];
+ param[4+3*i] = rmin[i];
+ param[5+3*i] = rmax[i];
+ } // end for i
+ name[3] = 'I';
+ for(i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"PCON",fidmed[med],param,n);
+
+ delete[] param;
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::TubeElliptical(const char gnam[3],const TString &dis,
+ Double_t p1,Double_t p2,Double_t dz,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS ELTU geometries. Elliptical
+ // cross-section Tube. It has 3 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm]. The equation of the surface
+ // is x^2 * p1^-2 + y^2 * p2^-2 = 1.
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t p1 semi-axis of the elipse along x.
+ // Double_t p2 semi-axis of the elipse along y.
+ // Double_t dz half-length along the z-axis
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[3];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*p1;
+ param[1] = fScale*p2;
+ param[2] = fScale*dz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"ELTU",fidmed[med],param,3);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::HyperbolicTube(const char gnam[3],const TString &dis,
+ Double_t rmin,Double_t rmax,Double_t dz,
+ Double_t thet,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS HYPE geometries. Hyperbolic tube.
+ // Fore example the inner and outer surfaces are hyperboloids, as would be
+ // foumed by a system of cylinderical wires which were then rotated
+ // tangentially about their centers. It has 4 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm]. The hyperbolic surfaces are
+ // given by r^2 = (ztan(thet)^2 + r(z=0)^2.
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t rmin Inner radius at z=0 where tube is narrowest.
+ // Double_t rmax Outer radius at z=0 where tube is narrowest.
+ // Double_t dz half-length along the z-axis
+ // Double_t thet stero angel of rotation of the two faces
+ // [degrees].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[4];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*rmin;
+ param[1] = fScale*rmax;
+ param[2] = fScale*dz;
+ param[3] = thet;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"HYPE",fidmed[med],param,4);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::TwistedTrapezoid(const char gnam[3],
+ const TString &dis,
+ Double_t dz,Double_t thet,Double_t phi,
+ Double_t twist,Double_t h1,Double_t bl1,
+ Double_t tl1,Double_t apl1,Double_t h2,
+ Double_t bl2,Double_t tl2,Double_t apl2,
+ Int_t med){
+ // Interface to TMC->Gsvolu() for ITS GTRA geometries. General twisted
+ // trapazoid. The faces perpendicular to z are trapazia and their centers
+ // are not necessarily on a line parallel to the z axis as the TRAP.
+ // Additionally, the faces may be twisted so that none of their edges are
+ // parallel. It is a TRAP shape, exept that it is twisted in the x-y plane
+ // as a function of z. The parallel sides perpendicular to the x axis are
+ // rotated with respect to the x axis by an angle TWIST, which is one of
+ // the parameters. The shape is defined by the eight corners and is assumed
+ // to be constructed of straight lines joingin points on the boundry of the
+ // trapezoidal face at Z=-dz to the coresponding points on the face at
+ // z=+dz. Divisions are not allowed. It has 12 parameters. See SetScale()
+ // for units. Default units are geant 3 [cm]. Note: This shape suffers from
+ // the same limitations than the TRAP. The tracking routines assume that
+ // the faces are planar, but htis constraint is not easily expressed in
+ // terms of the 12 parameters. Additionally, no check on th efaces is
+ // performed in this case. Users should avoid to use this shape as much as
+ // possible, and if they have to do so, they should make sure that the
+ // faces are really planes. If this is not the case, the result of the
+ // trasport is unpredictable. To accelerat ethe computations necessary for
+ // trasport, 18 additioanl parameters are calculated for this shape are
+ // 1 DXODZ dx/dz of the line joing the centers of the faces at z=+_dz.
+ // 2 DYODZ dy/dz of the line joing the centers of the faces at z=+_dz.
+ // 3 XO1 x at z=0 for line joing the + on parallel side, perpendicular
+ // corners at z=+_dz.
+ // 4 YO1 y at z=0 for line joing the + on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 5 DXDZ1 dx/dz for line joing the + on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 6 DYDZ1 dy/dz for line joing the + on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 7 X02 x at z=0 for line joing the - on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 8 YO2 y at z=0 for line joing the - on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 9 DXDZ2 dx/dz for line joing the - on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 10 DYDZ2dy/dz for line joing the - on parallel side, + on
+ // perpendicular corners at z=+-dz.
+ // 11 XO3 x at z=0 for line joing the - on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 12 YO3 y at z=0 for line joing the - on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 13 DXDZ3 dx/dzfor line joing the - on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 14 DYDZ3 dydz for line joing the - on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 15 XO4 x at z=0 for line joing the + on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 16 YO4 y at z=0 for line joing the + on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 17 DXDZ4 dx/dz for line joing the + on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // 18 DYDZ4 dydz for line joing the + on parallel side, - on
+ // perpendicular corners at z=+-dz.
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t dz half-length along the z axis.
+ // Double_t thet polar angle of the line joing the center of the
+ // face at -dz to the center of the one at +dz
+ // [degrees].
+ // Double_t phi Azymuthal angle of teh line joing the centre of
+ // the face at -dz to the center of the one at +dz
+ // [degrees].
+ // Double_t twist Twist angle of the faces parallel to the x-y
+ // plane at z=+-dz around an axis parallel to z
+ // passing through their centre [degrees].
+ // Double_t h1 Half-length along y of the face at -dz.
+ // Double_t bl1 half-length along x of the side -h1 in y of the
+ // face at -dz in z.
+ // Double_t tl1 half-length along x of the side at +h1 in y of
+ // the face at -dz in z.
+ // Double_t apl1 Angle with respect to the y ais from the center
+ // of the side at -h1 in y to the centere of the
+ // side at +h1 in y of the face at -dz in z
+ // [degrees].
+ // Double_t h2 half-length along the face at +dz.
+ // Double_t bl2 half-length along x of the side at -h2 in y of
+ // the face at -dz in z.
+ // Double_t tl2 half-length along x of the side at +h2 in y of
+ // the face at +dz in z.
+ // Double_t apl2 angle with respect to the y axis from the center
+ // of the side at -h2 in y to the center of the side
+ // at +h2 in y of the face at +dz in z [degrees].
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[12];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*dz;
+ param[1] = thet;
+ param[2] = phi;
+ param[3] = twist;
+ param[4] = fScale*h1;
+ param[5] = fScale*bl1;
+ param[6] = fScale*tl1;
+ param[7] = apl1;
+ param[8] = fScale*h2;
+ param[9] = fScale*bl2;
+ param[10] = fScale*tl2;
+ param[11] = apl2;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"GTRA",fidmed[med],param,12);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::CutTube(const char gnam[3],const TString &dis,
+ Double_t rmin,Double_t rmax,Double_t dz,
+ Double_t phi1,Double_t phi2,Double_t lx,
+ Double_t ly,Double_t lz,Double_t hx,
+ Double_t hy,Double_t hz,Int_t med){
+ // Interface to TMC->Gsvolu() for ITS CTUB geometries. Cut tube. A tube cut
+ // at the extremities with planes not necessarily perpendicular tot he z
+ // axis. It has 11 parameters. See SetScale() for units. Default units are
+ // geant 3 [cm]. phi1 should be smaller than phi2. If this is not the case,
+ // the system adds 360 degrees to phi2.
+ // Inputs:
+ // const char gnam[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // TString &dis String containging part discription.
+ // Double_t rmin Inner radius at z=0 where tube is narrowest.
+ // Double_t rmax Outer radius at z=0 where tube is narrowest.
+ // Double_t dz half-length along the z-axis
+ // Double_t dz half-length along the z-axis
+ // Double_t phi1 Starting angle of the segment [degree].
+ // Double_t phi2 Ending angle of the segment [degree].
+ // Double_t lx x component of a unit vector perpendicular to
+ // the face at -dz.
+ // Double_t ly y component of a unit vector perpendicular to
+ // the face at -dz.
+ // Double_t lz z component of a unit vector perpendicular to
+ // the face at -dz.
+ // Double_t hx x component of a unit vector perpendicular to
+ // the face at +dz.
+ // Double_t hy y component of a unit vector perpendicular to
+ // the face at +dz.
+ // Double_t hz z component of a unit vector perpendicular to
+ // the face at +dz.
+ // Int_t med media index number.
+ // Output:
+ // none.
+ // Return.
+ // none.
+ char name[4];
+ Float_t param[11];
+
+ if(fidmed==0) SetMedArray();
+ param[0] = fScale*rmin;
+ param[1] = fScale*rmax;
+ param[2] = fScale*dz;
+ param[3] = phi1;
+ param[4] = phi2;
+ param[5] = lx;
+ param[6] = ly;
+ param[7] = lz;
+ param[8] = hx;
+ param[9] = hy;
+ param[10] = hz;
+ name[3] = 'I';
+ for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
+ gMC->Gsvolu(name,"CTUB",fidmed[med],param,11);
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Pos(const char vol[3],Int_t cn,const char moth[3],
+ Double_t x,Double_t y,Double_t z,Int_t irot){
+ // Place a copy of a volume previously defined by a call to GSVOLU inside
+ // its mother volulme moth.
+ // Inputs:
+ // const char vol[3] 3 character geant volume name. The letter "I"
+ // is appended to the front to indecate that this
+ // is an ITS volume.
+ // const char moth[3] 3 character geant volume name of the mother volume
+ // in which vol will be placed. The letter "I" is
+ // appended to the front to indecate that this is an
+ // ITS volume.
+ // Double_t x The x positon of the volume in the mother's
+ // reference system
+ // Double_t y The y positon of the volume in the mother's
+ // reference system
+ // Double_t z The z positon of the volume in the mother's
+ // reference system
+ // Int_t irot the index for the rotation matrix to be used.
+ // irot=-1 => unit rotation.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ char name[4],mother[4];
+ Float_t param[3];
+ Int_t r=0,i;
+
+ param[0] = x;
+ param[1] = y;
+ param[2] = z;
+ name[3] = 'I';
+ for(i=0;i<3;i++) name[i+1] = vol[i];
+ mother[3] = 'I';
+ for(i=0;i<3;i++) mother[i+1] = moth[i];
+ if(irot>=0) r=fidrot[irot];
+ gMC->Gspos(name,1,mother,param[0],param[1],param[2],r,"ONLY");
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Matrix(Int_t irot,Double_t thet1,Double_t phi1,
+ Double_t thet2,Double_t phi2,
+ Double_t thet3,Double_t phi3){
+ // Defines a Geant rotation matrix. checks to see if it is the unit
+ // matrix. If so, then no additonal matrix is defined. Stores rotation
+ // matrix irot in the data structure JROTM. If the matrix is not
+ // orthonormal, it will be corrected by setting y' perpendicular to x'
+ // and z' = x' X y'. A warning message is printed in this case.
+ // Inputs:
+ // Int_t irot Intex specifing which rotation matrix.
+ // Double_t thet1 Polar angle for axisw x [degrees].
+ // Double_t phi1 azimuthal angle for axis x [degrees].
+ // Double_t thet12Polar angle for axisw y [degrees].
+ // Double_t phi2 azimuthal angle for axis y [degrees].
+ // Double_t thet3 Polar angle for axisw z [degrees].
+ // Double_t phi3 azimuthal angle for axis z [degrees].
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Float_t t1,p1,t2,p2,t3,p3;
+
+ if(thet1==90.0&&phi1==0.0&&thet2==90.0&&phi2==90.0&&thet3==0.0&&phi3==0.0){
+ fidrot[irot] = 0; // Unit matrix
+ }else{
+ t1 = thet1;
+ p1 = phi1;
+ t2 = thet2;
+ p2 = phi2;
+ t3 = thet3;
+ p3 = phi3;
+ fits->AliMatrix(fidrot[irot],t1,p1,t2,p2,t3,p3);
+ } // end if
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Matrix(Int_t irot,Int_t axis,Double_t thet){
+ // Defines a Geant rotation matrix. checks to see if it is the unit
+ // matrix. If so, then no additonal matrix is defined. Stores rotation
+ // matrix irot in the data structure JROTM. If the matrix is not
+ // orthonormal, it will be corrected by setting y' perpendicular to x'
+ // and z' = x' X y'. A warning message is printed in this case.
+ // Inputs:
+ // Int_t irot Intex specifing which rotation matrix.
+ // Int_t axis Axis about which rotation is to be done.
+ // Double_t thet Angle to rotate by [degrees].
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ if(thet==0.0){
+ fidrot[irot] = 0; // Unit matrix
+ }else{
+ switch (irot) {
+ case 0: //Rotate about x-axis, x-axis does not change.
+ fits->AliMatrix(fidrot[irot],90.0,0.0,90.0+thet,90.0,thet,90.0);
+ break;
+ case 1: //Rotate about y-axis, y-axis does not change.
+ fits->AliMatrix(fidrot[irot],-90.0-thet,0.0,90.0,90.0,thet,90.0);
+ break;
+ case 2: //Rotate about z-axis, z-axis does not change.
+ fits->AliMatrix(fidrot[irot],90.0,thet,90.0,-thet-90.0,0.0,0.0);
+ break;
+ default:
+ Error("Matrix","axis must be either 0, 1, or 2. for matrix=%d",
+ irot);
+ break;
+ } // end switch
+ } // end if
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Matrix(Int_t irot,Double_t rot[3][3]){
+ // Defines a Geant rotation matrix. checks to see if it is the unit
+ // matrix. If so, then no additonal matrix is defined. Stores rotation
+ // matrix irot in the data structure JROTM. If the matrix is not
+ // orthonormal, it will be corrected by setting y' perpendicular to x'
+ // and z' = x' X y'. A warning message is printed in this case.
+ // Inputs:
+ // Int_t irot Intex specifing which rotation matrix.
+ // Double_t rot[3][3] The 3 by 3 rotation matrix.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ if(rot[0][0]==1.0&&rot[1][1]==1.0&&rot[2][2]==1.0&&
+ rot[0][1]==0.0&&rot[0][2]==0.0&&rot[1][0]==0.0&&
+ rot[1][2]==0.0&&rot[2][0]==0.0&&rot[2][1]==0.0){
+ fidrot[irot] = 0; // Unit matrix
+ }else{
+ Double_t si,c=180./TMath::Pi();
+ Double_t ang[6];
+
+ ang[1] = TMath::ATan2(rot[0][1],rot[0][0]);
+ if(TMath::Cos(ang[1])!=0.0) si = rot[0][0]/TMath::Cos(ang[1]);
+ else si = rot[0][1]/TMath::Sin(ang[1]);
+ ang[0] = TMath::ATan2(si,rot[0][2]);
+
+ ang[3] = TMath::ATan2(rot[1][1],rot[1][0]);
+ if(TMath::Cos(ang[3])!=0.0) si = rot[1][0]/TMath::Cos(ang[3]);
+ else si = rot[1][1]/TMath::Sin(ang[3]);
+ ang[2] = TMath::ATan2(si,rot[1][2]);
+
+ ang[5] = TMath::ATan2(rot[2][1],rot[2][0]);
+ if(TMath::Cos(ang[5])!=0.0) si = rot[2][0]/TMath::Cos(ang[5]);
+ else si = rot[2][1]/TMath::Sin(ang[5]);
+ ang[4] = TMath::ATan2(si,rot[2][2]);
+
+ for(Int_t i=0;i<6;i++) {ang[i] *= c; if(ang[i]<0.0) ang[i] += 360.;}
+ fits->AliMatrix(fidrot[irot],ang[0],ang[1],ang[2],ang[3],
+ ang[4],ang[5]);
+ } // end if
+}
+//______________________________________________________________________
+Float_t AliITSBaseGeometry::GetA(Int_t z){
+ // Returns the isotopicaly averaged atomic number.
+ // Inputs:
+ // Int_t z Elemental number
+ // Outputs:
+ // none.
+ // Return:
+ // The atomic mass number.
+ const Float_t A[]={ 1.00794 , 4.0026902, 6.941 , 9.012182 , 10.811 ,
+ 12.01007 , 14.00674 , 15.9994 , 18.9984032, 20.1797 ,
+ 22.98970 , 24.3050 , 26.981538, 28.0855 , 30.973761,
+ 32.066 , 35.4527 , 39.948 , 39.0983 , 40.078 ,
+ 44.95591 , 47.867 , 50.9415 , 51.9961 , 54.938049,
+ 55.845 , 58.933200 , 58.6934 , 63.546 , 65.39 ,
+ 69.723 , 72.61 , 74.92160 , 78.96 , 79.904 ,
+ 83.80 , 85.4678 , 87.62 , 88.9085 , 91.224 ,
+ 92.90638 , 95.94 , 97.907215, 101.07 ,102.90550 ,
+ 106.42 ,107.8682 ,112.411 ,114.818 ,118.710 ,
+ 121.760 ,127.60 ,126.90447 ,131.29 ,132.90545 ,
+ 137.327 ,138.9055 ,140.116 ,140.90765 ,144.24 ,
+ 144.912746,150.36 ,151.964 ,157.25 ,158.92534 ,
+ 162.50 ,164.93032 ,167.26 ,168.93421 ,173.04 ,
+ 174.967 ,178.49 ,180.9479 ,183.84 ,186.207 ,
+ 190.23 ,192.217 ,195.078 ,196.96655 ,200.59 ,
+ 204.3833 ,207.2 ,208.98038,208.982415 ,209.987131,
+ 222.017570,223.019731 ,226.025402,227.027747 ,232.0381 ,
+ 231.03588 ,238.0289};
+
+ if(z<1||z>92){
+ Error("GetA","z must be 0<z<93. z=%d",z);
+ return 0.0;
+ } // end if
+ return A[z-1];
+}
+//______________________________________________________________________
+Float_t AliITSBaseGeometry::GetStandardMaxStepSize(Int_t istd){
+ // Returns one of a set of standard Maximum Step Size values.
+ // Inputs:
+ // Int_t istd Index to indecate which standard.
+ // Outputs:
+ // none.
+ // Return:
+ // The appropreate standard Maximum Step Size value [cm].
+ Float_t t[]={1.0, // default
+ 0.0075, // Silicon detectors...
+ 1.0, // Air in central detectors region
+ 1.0 // Material in non-centeral region
+ };
+ return t[istd];
+}
+//______________________________________________________________________
+Float_t AliITSBaseGeometry::GetStandardThetaMax(Int_t istd){
+ // Returns one of a set of standard Theata Max values.
+ // Inputs:
+ // Int_t istd Index to indecate which standard.
+ // Outputs:
+ // none.
+ // Return:
+ // The appropreate standard Theta max value [degrees].
+ Float_t t[]={0.1, // default
+ 0.1, // Silicon detectors...
+ 0.1, // Air in central detectors region
+ 1.0 // Material in non-centeral region
+ };
+ return t[istd];
+}
+//______________________________________________________________________
+Float_t AliITSBaseGeometry::GetStandardEfraction(Int_t istd){
+ // Returns one of a set of standard E fraction values.
+ // Inputs:
+ // Int_t istd Index to indecate which standard.
+ // Outputs:
+ // none.
+ // Return:
+ // The appropreate standard E fraction value [#].
+ Float_t t[]={0.1, // default
+ 0.1, // Silicon detectors...
+ 0.1, // Air in central detectors region
+ 0.5 // Material in non-centeral region
+ };
+ return t[istd];
+}
+Float_t AliITSBaseGeometry::GetStandardEpsilon(Int_t istd){
+ // Returns one of the standard Epsilon valuse
+ // Inputs:
+ // Int_t istd index of standard cuts to get
+ // Output:
+ // none.
+ // Return:
+ // Float_t the standard Epsilon cut value.
+ Float_t t[]={1.0E-4, // default
+ 1.0E-4, // Silicon detectors...
+ 1.0E-4, // Air in central detector region
+ 1.0E-3, // Material in non-cneteral regions
+ };
+
+ return t[istd];
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::Element(Int_t imat,const char* name,Int_t z,
+ Double_t dens,Int_t istd){
+ // Defines a Geant single element material and sets its Geant medium
+ // proporties. The average atomic A is assumed to be given by their
+ // natural abundances. Things like the radiation length are calculated
+ // for you.
+ // Inputs:
+ // Int_t imat Material number.
+ // const char* name Material name. No need to add a $ at the end.
+ // Int_t z The elemental number.
+ // Double_t dens The density of the material [g/cm^3].
+ // Int_t istd Defines which standard set of transport parameters
+ // which should be used.
+ // Output:
+ // none.
+ // Return:
+ // none.
+ Float_t rad,Z,A=GetA(z),tmax,stemax,deemax,epsilon;
+ char *name2;
+ Int_t len;
+
+ len = strlen(name)+1;
+ name2 = new char[len];
+ strncpy(name2,name,len-1);
+ name2[len-1] = '\0';
+ name2[len-2] = '$';
+ Z = (Float_t)z;
+ rad = GetRadLength(z)/dens;
+ fits->AliMaterial(imat,name2,A,Z,dens,rad,0.0,0,0);
+ tmax = GetStandardThetaMax(istd); // degree
+ stemax = GetStandardMaxStepSize(istd); // cm
+ deemax = GetStandardEfraction(istd); // ratio
+ epsilon = GetStandardEpsilon(istd); //
+ fits->AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
+ gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
+ delete[] name2;
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::MixtureByWeight(Int_t imat,const char* name,Int_t *z,
+ Double_t *w,Double_t dens,Int_t n,Int_t istd){
+ // Defines a Geant material by a set of elements and weights, and sets
+ // its Geant medium proporties. The average atomic A is assumed to be
+ // given by their natural abundances. Things like the radiation length
+ // are calculated for you.
+ // Inputs:
+ // Int_t imat Material number.
+ // const char* name Material name. No need to add a $ at the end.
+ // Int_t *z Array of The elemental numbers.
+ // Double_t *w Array of relative weights.
+ // Double_t dens The density of the material [g/cm^3].
+ // Int_t n the number of elements making up the mixture.
+ // Int_t istd Defines which standard set of transport parameters
+ // which should be used.
+ // Output:
+ // none.
+ // Return:
+ // none.
+ Float_t *Z,*A,*W,tmax,stemax,deemax,epsilon;
+ char *name2;
+ Int_t len,i;
+ Z = new Float_t[n];
+ A = new Float_t[n];
+ W = new Float_t[n];
+
+ len = strlen(name)+1;
+ name2 = new char[len];
+ strncpy(name2,name,len-1);
+ name2[len-1] = '\0';
+ name2[len-2] = '$';
+ for(i=0;i<n;i++){Z[i] = (Float_t)z[i];A[i] = (Float_t)GetA(z[i]);
+ W[i] = (Float_t)w[i];}
+ fits->AliMixture(imat,name2,A,Z,dens,n,W);
+ tmax = GetStandardThetaMax(istd); // degree
+ stemax = GetStandardMaxStepSize(istd); // cm
+ deemax = GetStandardEfraction(istd); // #
+ epsilon = GetStandardEpsilon(istd);
+ fits->AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
+ gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
+ delete[] name2;
+ delete[] Z;
+ delete[] A;
+ delete[] W;
+}
+//______________________________________________________________________
+void AliITSBaseGeometry::MixtureByNumber(Int_t imat,const char* name,Int_t *z,
+ Int_t *w,Double_t dens,Int_t n,Int_t istd){
+ // Defines a Geant material by a set of elements and number, and sets
+ // its Geant medium proporties. The average atomic A is assumed to be
+ // given by their natural abundances. Things like the radiation length
+ // are calculated for you.
+ // Inputs:
+ // Int_t imat Material number.
+ // const char* name Material name. No need to add a $ at the end.
+ // Int_t *z Array of The elemental numbers.
+ // Int_t_t *w Array of relative number.
+ // Double_t dens The density of the material [g/cm^3].
+ // Int_t n the number of elements making up the mixture.
+ // Int_t istd Defines which standard set of transport parameters
+ // which should be used.
+ // Output:
+ // none.
+ // Return:
+ // none.
+ Float_t *Z,*A,*W,tmax,stemax,deemax,epsilon;
+ char *name2;
+ Int_t len,i;
+ Z = new Float_t[n];
+ A = new Float_t[n];
+ W = new Float_t[n];
+
+ len = strlen(name)+1;
+ name2 = new char[len];
+ strncpy(name2,name,len-1);
+ name2[len-1] = '\0';
+ name2[len-2] = '$';
+ for(i=0;i<n;i++){Z[i] = (Float_t)z[i];A[i] = (Float_t)GetA(z[i]);
+ W[i] = (Float_t)w[i];}
+ fits->AliMixture(imat,name2,A,Z,dens,-n,W);
+ tmax = GetStandardThetaMax(istd); // degree
+ stemax = GetStandardMaxStepSize(istd); // cm
+ deemax = GetStandardEfraction(istd); // #
+ epsilon = GetStandardEpsilon(istd);
+ fits->AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
+ gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
+ delete[] name2;
+ delete[] Z;
+ delete[] A;
+ delete[] W;
+}
+//______________________________________________________________________
+Double_t AliITSBaseGeometry::RadLength(Int_t iz,Double_t a){
+ // Computes the radiation length in accordance to the PDG 2000 Section
+ // 23.4.1 p. 166. Transladed from the c code of Flavio Tosello.
+ // Inputs:
+ // Int_t iz The elemental number
+ // Dougle_t The elemental average atomic mass number
+ // Outputs:
+ // Return:
+ // Double_t returns the radiation length of the element iz in
+ // [gm/cm^2].
+ Double_t z = (Double_t)iz;
+ Double_t alphaz = fAlpha*z;
+ Double_t alphaz2 = alphaz*alphaz;
+ Double_t c0 = +0.20206,c1 = -0.0369,c2 = +0.0083,c3 = -0.0020;
+ Double_t z12,z23,l,lp,c;
+
+ c = alphaz2*(1./(1.+alphaz2) + c0 + c1*alphaz2 + c2*alphaz2*alphaz2
+ +c3*alphaz2*alphaz2*alphaz2);
+ z12 = TMath::Exp(TMath::Log(z)/3.0);
+ z23 = z12*z12;
+ switch (iz){
+ case 1: //Hydrogen
+ l = 5.31;
+ lp = 6.144;
+ break;
+ case 2: //Helium
+ l = 4.79;
+ lp = 5,621;
+ break;
+ case 3: //Lithium
+ l = 4.74;
+ lp = 5.805;
+ break;
+ case 4: //Berilium
+ l = 4.71;
+ lp = 5.924;
+ break;
+ default: //Others
+ l = TMath::Log(184.15/z12);
+ lp = TMath::Log(1194.0/z23);
+ break;
+ } // end switch
+ Double_t re2,b,r,xz;
+
+ re2 = fRe*fRe;
+ b = 4.0*fAlpha*re2*fNa/a;
+ r = b*z*(z*(l-c)+lp);
+ xz = 1.0/r;
+ return xz; // [gm/cm^2]
+}
--- /dev/null
+#ifndef ALIITSBASEGEOMETRY_H
+#define ALIITSBASEGEOMETRY_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/*
+ $Id$
+ */
+
+/////////////////////////////////////////////////////////////////////////
+// A basic geometry class for the ITS simulation geometry stucture
+/////////////////////////////////////////////////////////////////////////
+
+#include <TObject.h>
+#include <TArrayI.h>
+#include "AliModule.h"
+class TString;
+
+class AliITSBaseGeometry : public TObject {
+ public:
+ AliITSBaseGeometry(); // Default constructor
+ AliITSBaseGeometry(AliModule *its,Int_t iflag); // Standard Constructor
+ virtual ~AliITSBaseGeometry(); // Destructor
+ virtual void BuildDisplayGeometry(){}; // Calls ROOT geometry interface
+ // to AliRoot display
+ virtual void CreateG3Geometry(){}; // Calls Geant3 interface geometry routines
+ virtual void CreateG3Materials(){}; // Calls Geant3 interface for materials
+ virtual Int_t IsVersion() const{return 11;}// return version of geometry.
+
+ Int_t ITSG3VnameToIndex(const char name[3])const; // Get Index for Geant3 v name
+ char* ITSIndexToITSG3name(const Int_t i); // Get Geant3 volume name
+ Int_t AddVolName(const TString name); // Add volumen name to list
+ TString GetVolName(const Int_t i)const; // Return volume name at index
+ Int_t GetVolumeIndex(const TString &a);
+ void SetScalecm(){fScale = 1.0;}// Sets scale factor for centemeters
+ void SetScalemm(){fScale = 0.10;}// Sets scale factor for milimeters
+ void SetScalemicrons(){fScale = 1.0E-04;}// Sets scale factor for microns
+ void SetScale(Double_t s=1.0){fScale = s;}// Sets scale factor
+ Double_t GetScale()const{return fScale;}// Returns the scale factor
+ Bool_t IsScalecm()const{// Returens kTRUE if scale factor is set of [cm]
+ if(fScale==1.0) return kTRUE; return kFALSE;}
+ // Create a Box
+ void Box(const char gnam[3],const TString &dis,
+ Double_t dx,Double_t dy,Double_t dz,Int_t med);
+ // Greate A Trapizoid with the x dimension varing along z.
+ void Trapezoid1(const char gnam[3],const TString &dis,Double_t dxn,
+ Double_t dxp,Double_t dy,Double_t dz,Int_t med);
+ // Greate A Trapizoid with the x and y dimension varing along z.
+ void Trapezoid2(const char gnam[3],const TString &dis,Double_t dxn,
+ Double_t dxp,Double_t dyn,Double_t dyp,Double_t dz,
+ Int_t med);
+ // General trapazoid.
+ void Trapezoid(const char gnam[3],const TString &dis,Double_t dz,
+ Double_t thet,Double_t phi,Double_t h1,Double_t bl1,
+ Double_t tl1,Double_t alp1,Double_t h2,Double_t bl2,
+ Double_t tl2,Double_t alp2,Int_t med);
+ // Simple Tube.
+ void Tube(const char gnam[3],const TString &dis,Double_t rmin,
+ Double_t rmax,Double_t dz,Int_t med);
+ // Tube segment.
+ void TubeSegment(const char gnam[3],const TString &dis,Double_t rmin,
+ Double_t rmax,Double_t dz,Double_t phi1,Double_t phi2,
+ Int_t med);
+ // Simple Cone.
+ void Cone(const char gnam[3],const TString &dis,Double_t dz,Double_t rmin1,
+ Double_t rmax1,Double_t rmin2,Double_t rmax2,Int_t med);
+ // Segment of a Cone.
+ void ConeSegment(const char gnam[3],const TString &dis,Double_t dz,
+ Double_t rmin1,Double_t rmax1,Double_t rmin2,
+ Double_t rmax2,Double_t phi1,Double_t phi2,Int_t med);
+ // Spherical shell segment.
+ void Sphere(const char gnam[3],const TString &dis,Double_t rmin,
+ Double_t rmax,Double_t the1,Double_t the2,Double_t phi1,
+ Double_t phi2,Int_t med);
+ // Parallelepiped.
+ void Parallelepiped(const char gnam[3],const TString &dis,Double_t dx,
+ Double_t dy,Double_t dz,Double_t alph,Double_t thet,
+ Double_t phi,Int_t med);
+ // Polygon.
+ void Polygon(const char gnam[3],const TString &dis,Double_t phi1,
+ Double_t dphi,Int_t npdv,Int_t nz,Double_t *z,Double_t *rmin,
+ Double_t *rmax,Int_t med);
+ //Poly-Cone
+ void PolyCone(const char gnam[3],const TString &dis,Double_t phi1,
+ Double_t dphi,Int_t nz,Double_t *z,Double_t *rmin,
+ Double_t *rmax,Int_t med);
+ // Ellliptical cross-sectino tube
+ void TubeElliptical(const char gnam[3],const TString &dis,Double_t p1,
+ Double_t p2,Double_t dz,Int_t med);
+ // Hyperbolic tube
+ void HyperbolicTube(const char gnam[3],const TString &dis,Double_t rmin,
+ Double_t rmax,Double_t dz,Double_t thet,Int_t med);
+ // Twisted genral trapezoid.
+ void TwistedTrapezoid(const char gnam[3],const TString &dis,Double_t dz,
+ Double_t thet,Double_t phi,Double_t twist,
+ Double_t h1,Double_t bl1,Double_t tl1,
+ Double_t apl1,Double_t h2,Double_t bl2,
+ Double_t tl2,Double_t apl2,Int_t med);
+ // Cut tube.
+ void CutTube(const char gnam[3],const TString &dis,Double_t rmin,
+ Double_t rmax,Double_t dz,Double_t phi1,Double_t phi2,
+ Double_t lx,Double_t ly,Double_t lz,Double_t hx,Double_t hy,
+ Double_t hz,Int_t med);
+ // Position one volume inside another
+ void Pos(const char vol[3],Int_t cn,const char moth[3],Double_t x,
+ Double_t y,Double_t z,Int_t irot);
+ void SetMedArray(){// Sets up the array of media
+ fidmed = ((fits->GetIdtmed())->GetArray())-199;}// Define rotation matrix
+ void Matrix(Int_t irot,Double_t thet1,Double_t phi1,Double_t thet2,
+ Double_t phi2,Double_t thet3,Double_t phi3);
+ // Defube ritatuib matrix
+ void Matrix(Int_t irot,Double_t rot[3][3]);
+ // Rotation matrix about axis i (i=0=>x, i=1=>y, i=2=>z).
+ void Matrix(Int_t irot,Int_t axis,Double_t thet);
+ // Rotation matrix about x axis
+ void XMatrix(Int_t irot,Double_t thet){Matrix(irot,0,thet);}
+ // Rotation matrix about y axis
+ void YMatrix(Int_t irot,Double_t thet){Matrix(irot,1,thet);}
+ // Rotation matrix about z axis
+ void ZMatrix(Int_t irot,Double_t thet){Matrix(irot,2,thet);}
+ // Define Element material and medium
+ void Element(Int_t imat,const char *name,Int_t z,Double_t dens,Int_t istd);
+ // Define Material by constituant weights
+ void MixtureByWeight(Int_t imat,const char *name,Int_t *z,Double_t *w,
+ Double_t dens,Int_t nelments,Int_t istd);
+ // Define Material by constituant relative number
+ void MixtureByNumber(Int_t imat,const char *name,Int_t *z,Int_t *i,
+ Double_t dens,Int_t nelments,Int_t istd);
+ // Returns standard radiation lenghts of elements.
+ Float_t GetRadLength(Int_t z){return RadLength(z,(Double_t)GetA(z));}
+ // Returns natrual abundance atomic mass numbers for a given element
+ Float_t GetA(Int_t z);
+ // Returns ITS standard Theata Max transport cut values
+ Float_t GetStandardThetaMax(Int_t istd);
+ // Returns ITS standard Max step size transport cut values
+ Float_t GetStandardMaxStepSize(Int_t istd);
+ // Returns ITS standard frational energy transport cut values
+ Float_t GetStandardEfraction(Int_t istd);
+ // Returns ITS standard epsilon transport cut values
+ Float_t GetStandardEpsilon(Int_t istd);
+ // Degree Versions of TMath functions (as needed)
+ Double_t Sind(Double_t t){return TMath::Sin(TMath::Pi()*t/180.);}
+ Double_t Cosd(Double_t t){return TMath::Cos(TMath::Pi()*t/180.);}
+ Double_t Tand(Double_t t){return TMath::Tan(TMath::Pi()*t/180.);}
+ Double_t ASind(Double_t t){return 180.0*TMath::ASin(t)/TMath::Pi();}
+ Double_t ACosd(Double_t t){return 180.0*TMath::ACos(t)/TMath::Pi();}
+ Double_t ATand(Double_t t){return 180.0*TMath::ATan(t)/TMath::Pi();}
+ Double_t ATand2(Double_t y,Double_t x){return 180.0*TMath::ATan2(y,x)/
+ TMath::Pi();}
+ Double_t RadLength(Int_t iz,Double_t a); // Computes radiation length
+ // for an element
+ private:
+ static Int_t fNCreates; //! Counts the number of time this class has
+ // been created.
+ static const Double_t fAlpha = 7.297352533e-3; //! find structure constant
+ static const Double_t fRe = 2.81794028e-13;//![cm]classical electron radius
+ static const Double_t fNa = 6.02214199e+23; //! [#/mole] Avogadro's number
+ static Int_t *fidrot;
+ static Int_t fidrotsize;
+ static Int_t fidrotlast;
+ static TString *fVolName; // Array of ITS Volumen names.
+ static Int_t fVolNameSize; // Size of Array fVolName
+ static Int_t fVolNameLast; // Last filled element of fVolName
+ Double_t fScale; // Scale factor (=1=>[cm]).
+ Int_t *fidmed; // pointer to array of medium numbers
+ AliModule *fits; // local pointer to ITS module needed for AliMixture...
+
+ ClassDef(AliITSBaseGeometry,1) // Basic ITS Geometry class
+};
+
+#endif
--- /dev/null
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+$Id$
+*/
+
+#include <Riostream.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <TMath.h>
+#include <TGeometry.h>
+#include <TNode.h>
+#include <TTUBE.h>
+#include <TTUBS.h>
+#include <TPCON.h>
+#include <TFile.h> // only required for Tracking function?
+#include <TCanvas.h>
+#include <TObjArray.h>
+#include <TLorentzVector.h>
+#include <TObjString.h>
+#include <TClonesArray.h>
+#include <TBRIK.h>
+#include <TSystem.h>
+#include <TVector3.h>
+
+#include "AliITSGeometrySSDCone.h"
+
+ClassImp(AliITSGeometrySSDCone)
+
+//______________________________________________________________________
+AliITSGeometrySSDCone::AliITSGeometrySSDCone(){
+ //Default Constructor for SSD Cone geometry
+
+ SetScalemm();
+}
+//______________________________________________________________________
+AliITSGeometrySSDCone::AliITSGeometrySSDCone(TVector3 *&tran,
+ const char moth[3],Int_t mat0){
+ //Standard Constructor for SSD Cone geometry
+ // Inputs:
+ // Double_t z0 Z-axis shift of this volume
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Double_t t; // some general angle and coordinates [degrees].
+
+ th = 13.0; //mm, Thickness of Rohacell+carbon fiber
+ ct=1.5; //mm, Carbon finber thickness
+ r=15.0; // mm, Radius of curvature.
+ tc=51.0; // angle of SSD cone [degrees].
+ sintc=Sind(tc);costc=Cosd(tc);tantc=Tand(tc);
+ z0=0.0;zcylinder=170.0;zpost=196.0;
+ Routmax=0.5*985.0;RoutHole=0.5*965.0;Routmin=0.5*945.0;
+ Rholemax=0.5*890.0;Rholemin=0.5*740.0;
+ RPostmin=316.0;dRPost=23.0;zpostmax=196.0;phi0post=30.0;
+ Rinmax=0.5*590.0;Rincylinder=0.5*597.0;RinHole=0.5*575.0;
+ Rinmin=0.5*562.0;dzin=15.0;
+ nspoaks=12;ninscrews=40;npost=4;nmounts=4;
+ SSDcf=mat0+1; // SSD support cone Carbon Fiber materal number.
+ SSDfs=mat0+2; // SSD support cone inserto stesalite 4411w.
+ SSDfo=mat0+3; // SSD support cone foam, Rohacell 50A.
+ SSDsw=mat0+4; // SSD support cone screw material,Stainless steal
+ ncse=0; // number of screw ends (copy number)
+ ncpe=0; // number of pin end (copy number)
+ ncst=0; // number of screw tops (copy number)
+
+ SetScalemm();
+ // Lets start with the upper left outer carbon fiber surface.
+ // Between za[2],rmaxa[2] and za[4],rmaxa[4] there is a curved section
+ // given by rmaxa = rmaxa[2]-r*Sind(t) for 0<=t<=tc and
+ // za = za[2] + r*Cosd(t) for 0<=t<=tc. Simularly between za[1],rmina[1
+ // and za[3],rmina[3] there is a curve section given by
+ // rmina = rmina[1]-r*Sind(t) for 0<=t<=tc and za = za[1]+r&Sind(t)
+ // for t<=0<=tc. These curves have been replaced by straight lines
+ // between the equivelent points for simplicity.
+ Double_t dza = th/sintc-(Routmax-Routmin)/tantc;
+ if(dza<=0){ // The number or order of the points are in error for a proper
+ // call to pcons!
+ Error("SSDcone","The definition of the points for a call to PCONS is"
+ " in error. abort.");
+ return;
+ } // end if
+ dphia=360.0;
+ phi0a= 0.0;
+ za[0] = z0;
+ rmina[0] = Routmin;
+ rmaxa[0] = Routmax;
+ za[1] = za[0]+13.5-5.0 - dza; // za[2] - dza.
+ rmina[1] = rmina[0];
+ rmaxa[1] =rmaxa[0];
+ za[2] = za[0]+13.5-5.0; // From Drawing ALR-0767 and ALR-0767/3
+ rmaxa[2] = rmaxa[0];
+ za[3] = za[1]+r*sintc;
+ rmina[3] = rmina[1]-r*sintc;
+ rmina[2] = rmina[1]+(rmina[3]-rmina[1])*(za[2]-za[1])/(za[3]-za[1]);
+ za[4] = za[2]+r*sintc;
+ rmaxa[4] = rmaxa[2]-r*sintc;
+ rmaxa[3] = rmaxa[2]+(rmaxa[4]-rmaxa[2])*(za[3]-za[2])/(za[4]-za[2]);
+ rmina[5] = Rholemax;
+ za[5] = za[3]+(za[4]-za[3])*(rmina[5]-rmina[3])/(rmina[4]-rmina[3]);
+ rmina[4] = rmina[3]+(rmina[5]-rmina[3])*(za[4]-za[3])/(za[5]-za[3]);
+ za[6] = th/sintc+za[5];
+ rmina[6] = Rholemax;
+ rmaxa[6] = rmina[6];
+ rmaxa[5] = rmaxa[4]+(rmaxa[6]-rmaxa[4])*(za[5]-za[4])/(za[6]-za[4]);
+ //
+ // Now lets define the Inserto Stesalite 4411w material volume.
+ dphib=360.0;
+ phi0b= 0.0;
+ zb[0] = z0;
+ rminb[0] = rmina[0]+ct;
+ rmaxb[0] = rmaxa[0]-ct;
+ zb[1] = za[1];
+ rminb[1] = rminb[0];
+ rmaxb[1] = rmaxb[0];
+ zb[2] = za[2];
+ rmaxb[2] = rmaxb[1];
+ zb[3] = za[4] - ct/sintc;
+ rmaxb[3] = rmaxb[2] - (r-ct)*sintc;
+ zb[4] = za[3]+ct/sintc;
+ rminb[4] = rminb[1]-(r-ct)*sintc;
+ rminb[2] = rminb[1]+(rminb[4]-rminb[1])*(zb[2]-zb[1])/(zb[4]-zb[1]);
+ rminb[3] = rminb[1]+(rminb[4]-rminb[1])*(zb[3]-zb[1])/(zb[4]-zb[1]);
+ zb[5] = zb[4]+(ct-2.*ct)/sintc;
+ rminb[5] = rminb[4]+(ct-2.*ct)*tantc;
+ rmaxb[5] = rminb[5];
+ rmaxb[4] = rmaxb[3]+(rmaxb[5]-rmaxb[3])*(zb[4]-zb[3])/(zb[5]-zb[3]);
+ //
+ // Now lets define the Rohacell foam material volume.
+ dphic=360.0;
+ phi0c= 0.0;
+ zc[0] = zb[4];
+ rminc[0] = rminb[4];
+ rmaxc[0] = rminc[0];
+ zc[1] = zb[5];
+ rmaxc[1] = rminb[5];
+ zc[2] = za[5] + ct/sintc;
+ rminc[2] = rmina[5]+ct; // leave space for carbon fiber covering hole.
+ rminc[1] = rminc[0] +(rminc[2]-rminc[0])*(zc[1]-zc[0])/(zc[2]-zc[0]);
+ zc[3] = za[6] - ct/sintc;
+ rminc[3] = rmina[6]+ct;
+ rmaxc[3] = rminc[3];
+ rmaxc[2] = rmaxc[1]+(rmaxc[3]-rmaxc[1])*(zc[2]-zc[1])/(zc[3]-zc[1]);
+ //
+ // In volume SCB, th Inserto Stesalite 4411w material volume, there
+ // are a number of Stainless steel screw and pin studs which will be
+ // filled with screws/studs.
+ rmine=0.0,rmaxe=6.0,dze=0.5*10.0; // mm
+ rmine2=0.0;rmaxe2=6.0;dze2=0.5*12.0; // mm
+ //
+ // There is no carbon fiber between this upper left section and the
+ // SSD spoaks. We remove it by replacing it with Rohacell foam.
+ t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
+ // carbon fiber thickness uniform in this phi direction. We can only
+ // make it a fixed angular thickness.
+ t *= 180.0/TMath::Pi();
+ dphif = 5.0 - 2.0*t; // degrees
+ phi0f = 12.5+t; // degrees see drawing ALR-0767.
+ zf[0] = zc[2];
+ rminf[0] = rminc[3];
+ rmaxf[0] = rminf[0];
+ rminf[1] = rmina[5];
+ rmaxf[1] = rminf[0];
+ zf[1] = zc[0]+(zc[2]-zc[0])*(rminf[1]-rminc[0])/(rminc[2]-rminc[0]);
+ zf[2] = zc[3];
+ rminf[2] = rminf[1];
+ rmaxf[2] = rmaxf[1];
+ zf[3] = zc[1]+(zc[3]-zc[1])*(rmaxf[3]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
+ rminf[3] = rmina[5];
+ rmaxf[3] = rminf[3];
+ //=================================================================
+ // Now for the spoak part of the SSD cone.
+ // It is not posible to inclue the radius of curvature between
+ // the spoak part and the upper left part of the SSD cone or lowwer right
+ // part. This would be discribed by the following curves.
+ // R = Rmax - (5mm)*Sin(t) phi = phi0+(5mm*180/(Pi*RoutHole))*Sin(t)
+ // where 0<=t<=90 For the inner curve a simular equiation holds.
+ phi0g = 12.5; // degrees see drawing ALR-0767.
+ dphig = 5.0; // degrees
+ zg[0] = zb[5];
+ rming[0] = rmina[5];
+ rmaxg[0] = rming[0];
+ zg[1] = za[6];
+ rming[1] = -tantc*(zg[1]-za[3])+rmina[3];
+ rmaxg[1] = rmaxg[0];
+ rming[2] = Rholemin;
+ zg[2] = za[3]-(rming[2]-rmina[3])/tantc;
+ rmaxg[2] = -tantc*(zg[2]-za[4])+rmaxa[4];
+ rming[3] = rming[2];
+ rmaxg[3] = rming[3];
+ zg[3] = za[4]-(rmaxg[3]-rmaxa[4])/tantc;
+ // For the foam core.
+ t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
+ // carbon fiber thickness uniform in this phi direction. We can only
+ // make it a fixed angular thickness.
+ t *= 180.0/TMath::Pi();
+ dphih = 5.0 - 2.0*t; // degrees
+ phi0h = 12.5+t; // degrees see drawing ALR-0767.
+ zh[0] = zf[2];
+ rminh[0] = rming[0];
+ rmaxh[0] = rmaxg[0];
+ zh[1] = zf[3];
+ rminh[1] = rming[1]-(ct/sintc-(zg[1]-zh[1]))*tantc;
+ rmaxh[1] = rmaxh[0];
+ zh[2] = zg[2]+ct/tantc;
+ rminh[2] = rming[2];
+ rmaxh[2] = rmaxg[2]-(ct/sintc-(zg[2]-zh[2]))*tantc;
+ zh[3] = zg[3]-ct/sintc;
+ rminh[3] = rminh[2];
+ rmaxh[3] = rminh[3];
+ //
+ //==================================================================
+ // Now for the Inner most part of the SSD cone.
+ phi0i = 0.0;
+ dphii = 360.0;
+ Double_t za,rmina,rmaxa; // additional point not needed in call to pcons.
+ zi[0] = zg[2];
+ rmini[0] = rming[2];
+ rmaxi[0] = rmini[0];
+ zi[1] = zg[3];
+ rmini[1] = -tantc*(zi[1]-za[3])+rmina[3];
+ rmaxi[1] = rmaxi[0];
+ rmini[5] = Rinmin;
+ rmaxi[5] = Rinmax+r*sintc;
+ zi[5] =za[4]+(rmaxa[4]-rmaxi[5])/tantc;
+ za = zi[5]+r*costc;
+ rmina = rmini[5];
+ rmaxa = Rinmax;
+ zi[3] = za-dzin;
+ zi[2] = zi[3] -r*costc;
+ rmini[2] = -tantc*(zi[2]-za[3])+rmina[3];
+ rmaxi[2] = -tantc*(zi[2]-za[4])+rmaxa[4];
+ rmini[3] = rmini[2] -r*costc;
+ zi[4] = zi[3];
+ rmini[4] = Rinmin;
+ rmaxi[4] = -tantc*(zi[4]-za[4])+rmaxa[4];
+ rmaxi[3] = rmaxi[4];
+ zi[6] = zcylinder;
+ rmini[6] = Rinmin;
+ rmaxi[6] = rmaxi[5] - (zi[5]-zi[6])*(rmaxi[5]-rmaxa)/(zi[5]-za);
+ zi[7] = zi[6];
+ rmini[7] = Rincylinder;
+ rmaxi[7] = rmaxi[6];
+ rmini[8] = Rincylinder;
+ rmaxi[8] = rmini[8];
+ zi[8] = zi[5]+(rmaxi[8]-rmaxi[5])*(za-zi[5])/(rmaxa-rmaxi[5]);
+ // Now for Inserto volume at the inner most radius.
+ phi0k = 0.0;
+ dphik = 360.0;
+ zk[1] = zi[3]+ct;
+ zk[0] = zk[1]-(r+ct)*costc;
+ rmink[0] = rmini[3]+(r+ct)*sintc;
+ rmaxk[0] = rmink[0];
+ rmink[1] = rmini[3];
+ zk[2] = zk[1];
+ rmink[2] = rmini[6];
+ rmaxk[2] = rmaxk[1];
+ zk[3] = zk[0]+(th+2.0*ct)*costc;
+ rmink[3] = rmini[6];
+ rmaxk[3] = rmaxk[0]+(th+2.0*ct)*sintc;
+ rmaxk[1] = rmaxk[0]+(rmaxk[3]-rmaxk[0])*(zk[1]-zk[0])/(zk[3]-zk[0]);
+ rmink[4] = rmini[6];
+ rmaxk[4] = rmaxi[5]-ct*sintc;
+ zk[4] = zc[1]+(zc3[3]-zc[1])*(rmaxk[4]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
+ zk[5] = zi[5]-r*costc-ct;
+ rmink[5] = rmini[6];
+ rmaxk[5] = rmini[8];
+ zk[6] = zi[6];
+ rmink[6] = rmini[6];
+ rmaxk[6] = rmaxi[6];
+ // Now for foam core at the inner most radius.
+ phi0j = 0.0;
+ dphij = 360.0;
+ rminj[0] = rmini[0]-ct;
+ zj[0] = zc[0]+(zc[2]-zc[0])*(rminj[0]-rminc[0])/(rminc[2]-rminc[0]);
+ rmaxj[0] = rminj[0];
+ rmaxj[1] = rmaxj[0];
+ zj[1] = zc[1]+(zc[3]-zc[1])*(rmaxj[1]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
+ rminj[1] = rminc[0]+(rminc[2]-rminc[0])*(zj[1]-zc[0])/(zc[2]-zc[0]);
+ zj[2] = zk[0];
+ rminj[2] = rmink[0];
+ rmaxj[2] = rmaxc[1]+(rmaxc[3]-rmaxc[1])*(zj[2]-zc[1])/(zc[3]-zc[1]);
+ zj[3] = zk[3];
+ rminj[3] = rmaxk[3];
+ rmaxj[3] = rminj[3];
+ // Now for foam core at the top of the inner most radius where
+ // the spoaks are.
+ t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
+ // carbon fiber thickness uniform in this phi direction. We can only
+ // make it a fixed angular thickness.
+ t *= 180.0/TMath::Pi();
+ dphil = 5.0 - 2.0*t; // degrees
+ phi0l = 12.5+t; // degrees see drawing ALR-0767.
+ zl[0] = zh[2];
+ rminl[0] = rmini[0];
+ rmaxl[0] = rminl[0];
+ zl[1] = zj[0];
+ rminl[1] = rminj[1];
+ rmaxl[1] = rmaxi[0];
+ zl[2] = zh[3];
+ rminl[2] = rminl[1];
+ rmaxl[2] = rmaxl[1];
+ zl[3] = zj[1];
+ rminl[3] = rminl[2];
+ rmaxl[3] = rminl[3];
+ // Now for the SSD mounting posts
+ dphio = 180.0*dRPost/(RPostmin+0.5*dRPost)/TMath::Pi(); // degrees
+ phi0o = phi0post; //
+ rmino[0] = RPostmin+dRPost;
+ rmaxo[0] = rmino[0];
+ zo[0] = za[4]+(rmaxa[4]-rmaxo[0])/tantc;
+ rmino[1] = RPostmin;
+ zo[1] = za[4]+(rmaxa[4]-rmino[1])/tantc;
+ rmaxo[1] = rmaxo[0];
+ zo[2] = z0+zpostmax;
+ rmino[2] = RPostmin;
+ rmaxo[2] = rmino[2]+dRPost;
+ // Now for the SSD mounting posts
+ t = 180.0*ct/(RPostmin+0.5*dRPost)/TMath::Pi();
+ dphip = dphio-2.0*t; // degrees
+ phi0p = phio0+t; //
+ rminp[0] = rmino[0]-ct;
+ rmaxp[0] = rminp[0];
+ zp[0] = za[4]+(rmaxa[4]-rmaxp[0])/tantc;
+ rminp[1] = rmino[0]+ct;
+ rmaxp[1] = rmino[0]-ct;
+ zp[1] = za[4]+(rmaxa[4]-rminp[1])/tantc;
+ rminp[2] = rminp[1];
+ rmaxp[2] = rmaxp[1];
+ zp[2] = z0-zpostmax;
+ // This insrto continues into the SSD cone displacing the foam
+ // and the carbon fiber surface at those points where the posts are.
+ dphim=360.0;
+ phi0m= 0.0;
+ rminm[0] = RPostmin+dRPost-ct;
+ rmaxm[0] = rminm[0];
+ zm[0] = zj[0]+(zj[2]-zj[0])*(rminm[0]-rminj[0])/(rminj[2]-rminj[0]);
+ rmaxm[1] = rmaxm[0];
+ zm[1] = zj[1]+(zj[3]-zj[1])*(rmaxm[1]-rmaxj[1])/(rmaxj[3]-rmaxj[1]);
+ rminm[2] = RPostmin+ct;
+ zm[2] = zj[0]+(zj[2]-zj[0])*(rminm[2]-rminj[0])/(rminj[2]-rminm[0]);
+ rmaxm[2] = rmaxj[1]+(rmaxj[3]-rmaxm[1])*(zm[2]-zj[1])/(zj[3]-zj[1]);
+ rminm[3] = rminm[2];
+ rmaxm[3] = rminm[3];
+ dphin=360.0;
+ phi0n= 0.0;
+ zn[0] = zm[1];
+ rminn[0] = rmaxm[1];
+ rmaxn[0] = rminn[0];
+ rmaxn[1] = rmaxn[0];
+ zn[1] = za[4]+(rmaxa[4]-rmaxn[1])/tantc;
+ rminn[1] = rmaxj[1]+(rmaxj[3]-rmaxj[1])*(zn[1]-zj[1])/(zj[3]-zj[1]);
+ zn[2] = zm[3];
+ rminn[2] = rminm[3];
+ rmaxn[2] = -tantc*(zn[2]-za[4])+rmaxa[4];
+ rminn[3] = rminn[2];
+ rmaxn[3] = rminn[3];
+ zn[3] = za[4]+(rmaxa[4]-rmaxn[3])/tantc;
+}
+//______________________________________________________________________
+void AliITSGeometrySSDCone::CreateG3Geometry(const char moth[3],
+ TVector3 &trans){
+ // Calls Geant 3 geometry inilization routines with the information
+ // stored in this class.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ PolyCone("SCA","SSD Suport cone Carbon Fiber Surface outer left",
+ phi0a,dphia,nza,za,rmina,rmaxa,SSDcf);
+ Pos("SCA",1,moth,trans.x(),trans.y(),trans.z(),0);
+ XMatrix(1,180.0);
+ Pos("SCA",2,moth,trans.x(),trans.y(),-trans.z(),1);
+ PolyCone("SCB","SSD Suport cone Inserto Stesalite left edge",
+ phi0b,dphib,nzb,zb,rminb,rmaxb,SSDfs);
+ Pos("SCB",1,"SCA",0.0,.0,0.0,0);
+ PolyCone("SCC","SSD Suport cone Rohacell foam left edge",
+ phi0,dphi,nz,zc,rminc,rmaxc,SSDfo);
+ Pos("SCC",1,"SCA",0.0,.0,0.0,0);
+ Tube("SCD","Screw+stud used to mount things to the SSD support cone",
+ rmine,rmaxe,dze,SSDsw);
+ Tube("SCE","pin used to mount things to the SSD support cone",
+ rmine2,rmaxe2,dze2,SSDsw);
+ k=l=0;
+ for(i=0;i<2;i++){ // position for ITS-TPC mounting brackets
+ for(j=0;j<2;j++){ // 2 screws per bracket
+ ncse++;
+ t = -5.0+10.0*((Double_t)j)+180.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCD",ncse,"SCB",x,y,z,0);
+ } // end for j
+ for(j=0;j<3;j++){ // 3 pins per bracket
+ ncpe++;
+ t = -3.0+3.0*((Double_t)j)+180.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCE",ncpe,"SCB",x,y,z,0);
+ } // end for j
+ } // end for i
+ for(i=0;i<2;i++){ // position for ITS-rail mounting brackets
+ for(j=0;j<4;j++){ // 4 screws per bracket
+ a[4]={0.0,2.0,5.0,7.0}; // Relative angles.
+ ncse++;
+ t = 90.0-a[j]+187.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCD",kncs,"SCB",x,y,z,0);
+ } // end for j
+ for(j=0;j<2;j++){ // 2 pins per bracket
+ ncpe++;
+ t = 88+7.0*((Double_t)j)+184.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCE",ncse,"SCB",x,y,z,0);
+ } // end for j
+ } // end for i
+ for(i=0;i<nmounts;i++){ // mounting holes/screws for beam pipe support
+ // and SPD cone support (dump side,non-dump side has them to).
+ for(j=0;j<2;j++){ // 2 screws per bracket
+ ncse++;
+ t = 180.*20./(RoutHole*TMath::Pi());
+ t = 45.0+((Doulbe_t)(j-1))*t+90.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCD",ncse,"SCB",x,y,z,0);
+ } // end for j
+ for(j=0;j<1;j++){ // 1 pins per bracket
+ ncpe++;
+ t = 45.0+90.*((Double_t)i);
+ x = RoutHole*Sind(t);
+ y = RoutHole*Cosd(t);
+ z = dz;
+ Pos("SCE",ncpe,"SCB",x,y,z,0);
+ } // end for j
+ } // end for i
+ PolyCone("SCF","SSD Suport cone Rohacell foam left edge",
+ phi0f,dphif,nzf,zf,rminf,rmaxf,SSDfo);
+ Pos("SCF",1,"SCA",0.0,.0,0.0,0);
+ for(i=1;i<nspoaks;i++){
+ Zmatrix(irot+i,360./((Double_t)nspoaks));
+ Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
+ } // end for i
+ PolyCone("SCG","SSD spoak carbon fiber surfaces",
+ phi0g,dphig,nzg,zg,rming,rmaxc,SSDcf);
+ Pos("SCG",i+1,"SCA",0.0,.0,0.0,0);
+ for(i=1;i<nspoaks;i++){
+ Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
+ } // end for i
+ PolyCone("SCH","SSD spoak foam core",
+ phi0h,dphih,nzh,zh,rminh,rmaxh,SSDfo);
+ Pos("SCH",1,"SCG",0.0,.0,0.0,0);
+ PolyCone("SCI","SSD lower/inner right part of SSD cone",
+ phi0i,dphii,nzi,zci,rminci,rmaxci,SSDcf);
+ Pos("SCI",1,moth,0.0,.0,0.0,0);
+ PolyCone("SCK","SSD inner most inserto material",
+ phi0k,dphik,nzk,zk,rmink,rmaxk,SSDfs);
+ Pos("SCK",1,"SCI",0.0,.0,0.0,0);
+ PolyCone("SCJ","SSD inner most foam core",
+ phi0j,dphij,nzj,zj,rminj,rmaxj,SSDfo);
+ Pos("SCJ",1,"SCI",0.0,.0,0.0,0);
+ PolyCone("SCL","SSD inner most foam core",
+ phi0l,dphil,nzl,zl,rminl,rmaxl,SSDfo);
+ Pos("SCL",1,"SCI",0.0,.0,0.0,0);
+ for(i=1;i<nspoaks;i++){
+ Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
+ } // end for i
+ PolyCone("SCO","SSD mounting post, carbon fiber",
+ phi0,dphi,nz,zc,rminc,rmaxc,SSDcf);
+ Pos("SCO",1,moth,0.0,.0,0.0,0);
+ for(i=1;i<nposts;i++){
+ Zmatrix(irot+i,360./((Double_t)nposts));
+ Pos("SCO",i+1,moth,0.0,.0,0.0,irot+i);
+ } // end for
+ PolyCone("SCP","SSD mounting post, Inserto",
+ phi0p,dphip,nzp,zp,rminp,rmaxp,SSDfs);
+ Pos("SCP",1,"SCO",0.0,.0,0.0,0);
+ Pos("SCM",1,"SCJ",0.0,.0,0.0,0);
+ Pos("SCN",1,"SCI",0.0,.0,0.0,0);
+ for(i=1;i<nposts;i++){
+ Pos("SCN",i+1,"SCJ",0.0,.0,0.0,irot+i);
+ Pos("SCM",i+1,"SCI",0.0,.0,0.0,irot+i);
+ } // end for i
+ return;
+}
+//______________________________________________________________________
+void CreateG3Materials(){
+ // Fills the Geant 3 banks with Material and Medium definisions.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Returns:
+ // none.
+ Double_t Z[5],W[5],dens;
+
+ Z[0] = 1.; W[0] = 0.5; // Hydrogen Content
+ Z[1] = 6.; W[1] = 0.5; // Carbon Content
+ MixtureByWeight(SSDcf,"Carbon Fiber for SSD support cone",Z,W,dens,2);
+ Z[0] = 1.; W[0] = 0.5; // Hydrogen Content
+ Z[1] = 6.; W[1] = 0.5; // Carbon Content
+ MixtureByWeight(SSDfs,"Inserto stealite 4411w for SSD support cone",
+ Z,W,dens,2);
+ Z[0] = 1.; W[0] = 0.5; // Hydrogen Content
+ Z[1] = 6.; W[1] = 0.5; // Carbon Content
+ MixtureByWeight(SSDfo,"Foam core (Rohacell 50A) for SSD support cone",
+ Z,W,dens,2);
+ Z[0] = 6.; W[0] = 0.5; // Carbon Content
+ Z[1] = 25.; W[1] = 0.5; // Iron Content
+ MixtureByWeight(SSDsw,"Stainless steal screw, pin, and stud material",
+ Z,W,dens,2);
+}
+//______________________________________________________________________
+void AliITSGeometrySSDCone::BuildDisplayGeometry(){
+ // Fill Root geometry banks for fast simple ITS simulation event
+ // display. See Display.C, and related code, for more details.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+
+ // No need to display ITS cones.
+}
--- /dev/null
+#ifndef ALIITSGEOMETRYSSDCONE_H
+#define ALIITSGEOMETRYSSDCONE_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/*
+ $Id$
+ */
+
+/*
+ ITS SSD Cone Geometry. Version 11
+*/
+#include "AliITSBaseGeometry.h"
+class TVector3;
+
+class AliITSGeometrySSDCone : public AliITSBaseGeometry {
+ public:
+ AliITSGeometrySSDCone();
+ AliITSGeometrySSDCone(TVector3 *&tran,const char moth[3],Int_t mat0);
+ virtual ~AliITSGeometrySSDCone();
+ void CreateG3Geometry(const char moth[3],TVector3 &trans);
+ void CreateG3Materials();
+ void BuildDisplayGeometry();
+ private:
+ Double_t th; //mm, Thickness of Rohacell+carbon fiber
+ Double_t ct; //mm, Carbon finber thickness
+ Double_t r; // mm, Radius of curvature.
+ Double_t tc; // angle of SSD cone [degrees].
+ Double_t sintc,costc,tantc;
+ Double_t z0,zcylinder,zpost;
+ Double_t Routmax,RoutHole,Routmin;
+ Double_t Rholemax,Rholemin;
+ Double_t RPostmin,dRPost,zpostmax,phi0post;
+ Double_t Rinmax,Rincylinder,RinHole,Rinmin,dzin;
+ Int_t nspoaks,ninscrews,npost,nmounts;
+ Int_t SSDcf; // SSD support cone Carbon Fiber materal number.
+ Int_t SSDfs; // SSD support cone inserto stesalite 4411w.
+ Int_t SSDfo; // SSD support cone foam, Rohacell 50A.
+ Int_t SSDsw; // SSD support cone screw material,Stainless steal
+ Int_t ncse; // number of screw ends (copy number)
+ Int_t ncpe; // number of pin end (copy number)
+ Int_t ncst; // number of screw tops (copy number)
+ Double_t dphia,phi0a;
+ Int_t nza;
+ Double_t za[7];
+ Double_t rmina[7];
+ Double_t rmaxa[7];
+ Double_t dphib,phi0b;
+ Int_t nzb;
+ Double_t zb[6];
+ Double_t rminb[6];
+ Double_t rmaxb[6];
+ Double_t dphic,phi0c;
+ Int_t nzc;
+ Double_t zc[4];
+ Double_t rminc[4];
+ Double_t rmaxc[4];
+ Double_t dphid,phi0d;
+ Int_t nzd;
+ Double_t zd[4];
+ Double_t rmind[4];
+ Double_t rmaxd[4];
+ Double_t dze;
+ Double_t rmine;
+ Double_t rmaxe;
+ Double_t dze2;
+ Double_t rmine2;
+ Double_t rmaxe2;
+ Double_t dphif,phi0f;
+ Int_t nzf;
+ Double_t zf[4];
+ Double_t rminf[4];
+ Double_t rmaxf[4];
+ Double_t dphig,phi0g;
+ Int_t nzg;
+ Double_t zg[4];
+ Double_t rming[4];
+ Double_t rmaxg[4];
+ Double_t dphih,phi0h;
+ Int_t nzh;
+ Double_t zh[4];
+ Double_t rminh[4];
+ Double_t rmaxh[4];
+ Double_t dphii,phi0i;
+ Int_t nzi;
+ Double_t zi[8];
+ Double_t rmini[8];
+ Double_t rmaxi[8];
+ Double_t dphij,phi0j;
+ Int_t nzj;
+ Double_t zj[4];
+ Double_t rminj[4];
+ Double_t rmaxj[4];
+ Double_t dphik,phi0k;
+ Int_t nzk;
+ Double_t zk[7];
+ Double_t rmink[7];
+ Double_t rmaxk[7];
+ Double_t dphil,phi0l;
+ Int_t nzl;
+ Double_t zl[4];
+ Double_t rminl[4];
+ Double_t rmaxl[4];
+ Double_t dphim,phi0m;
+ Int_t nzm;
+ Double_t zm[4];
+ Double_t rminm[4];
+ Double_t rmaxm[4];
+ Double_t dphin,phi0n;
+ Int_t nzn;
+ Double_t zn[4];
+ Double_t rminn[4];
+ Double_t rmaxn[4];
+ Double_t dphio,phi0o;
+ Int_t nzo;
+ Double_t zo[3];
+ Double_t rmino[3];
+ Double_t rmaxo[3];
+ Double_t dphip,phi0p;
+ Int_t nzp;
+ Double_t zp[3];
+ Double_t rminp[3];
+ Double_t rmaxp[3];
+
+ ClassDef(AliITSGeometrySSDCone,1)// ITS SSD support cone geometry version 1
+};
+
+#endif
/*
$Log$
+Revision 1.5 2003/02/01 14:02:20 nilsen
+Work continues.
+
Revision 1.4 2003/01/29 16:01:14 nilsen
Update today's work.
#include "AliITSClusterFinderSPD.h"
#include "AliITSClusterFinderSDD.h"
#include "AliITSClusterFinderSSD.h"
+//
+#include "AliITSGeometrySSDCone.h"
ClassImp(AliITSv11)
//______________________________________________________________________
AliITSv11::AliITSv11() : AliITS() {
- ////////////////////////////////////////////////////////////////////////
- // Standard default constructor for the ITS version 11.
- ////////////////////////////////////////////////////////////////////////
-}
-//______________________________________________________________________
-AliITSv11::AliITSv11(const char *title) : AliITS("ITS", title){
- ////////////////////////////////////////////////////////////////////////
- // Standard constructor for the ITS version 11.
- ////////////////////////////////////////////////////////////////////////
-}
-//______________________________________________________________________
-AliITSv11::~AliITSv11() {
- ////////////////////////////////////////////////////////////////////////
- // Standard destructor for the ITS version 11.
- ////////////////////////////////////////////////////////////////////////
-}
-//______________________________________________________________________
-void AliITSv11::Box(const char gnam[3],const TString &dis,
- Double_t dx,Double_t dy,Double_t dz,Int_t med){
- // Interface to TMC->Gsvolu() for ITS bos geometries. Box with faces
- // perpendicular to the axes. It has 3 paramters. See SetScale() for
- // units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dx half-length of box in x-axis
- // Double_t dy half-length of box in y-axis
- // Double_t dz half-length of box in z-axis
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[3];
-
- param[0] = fScale*dx;
- param[1] = fScale*dy;
- param[2] = fScale*dz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"BOX ",fidmed[med],param,3);
-}
-//______________________________________________________________________
-void AliITSv11::Trapezoid1(const char gnam[3],const TString &dis,
- Double_t dxn,Double_t dxp,Double_t dy,Double_t dz,
- Int_t med){
- // Interface to TMC->Gsvolu() for ITS TRD1 geometries. Trapezoid with the
- // x dimension varing along z. It has 4 parameters. See SetScale() for
- // units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dxn half-length along x at the z surface positioned
- // at -DZ
- // Double_t dxp half-length along x at the z surface positioned
- // at +DZ
- // Double_t dy half-length along the y-axis
- // Double_t dz half-length along the z-axis
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[4];
-
- param[0] = fScale*dxn;
- param[1] = fScale*dxp;
- param[2] = fScale*dy;
- param[3] = fScale*dz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"TRD1",fidmed[med],param,4);
-}
-//______________________________________________________________________
-void AliITSv11::Trapezoid2(const char gnam[3],const TString &dis,Double_t dxn,
- Double_t dxp,Double_t dyn,Double_t dyp,Double_t dz,
- Int_t med){
- // Interface to TMC->Gsvolu() for ITS TRD2 geometries. Trapezoid with the
- // x and y dimension varing along z. It has 5 parameters. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dxn half-length along x at the z surface positioned
- // at -DZ
- // Double_t dxp half-length along x at the z surface positioned
- // at +DZ
- // Double_t dyn half-length along x at the z surface positioned
- // at -DZ
- // Double_t dyp half-length along x at the z surface positioned
- // at +DZ
- // Double_t dz half-length along the z-axis
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[5];
-
- param[0] = fScale*dxn;
- param[1] = fScale*dxp;
- param[2] = fScale*dyn;
- param[3] = fScale*dyp;
- param[4] = fScale*dz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"TRD2",fidmed[med],param,5);
-}
-//______________________________________________________________________
-void AliITSv11::Trapezoid(const char gnam[3],const TString &dis,Double_t dz,
- Double_t thet,Double_t phi,Double_t h1,Double_t bl1,
- Double_t tl1,Double_t alp1,Double_t h2,Double_t bl2,
- Double_t tl2,Double_t alp2,Int_t med){
- // Interface to TMC->Gsvolu() for ITS TRAP geometries. General Trapezoid,
- // The faces perpendicular to z are trapezia and their centers are not
- // necessarily on a line parallel to the z axis. This shape has 11
- // parameters, but only cosidering that the faces should be planar, only 9
- // are really independent. A check is performed on the user parameters and
- // a message is printed in case of non-planar faces. Ignoring this warning
- // may cause unpredictable effects at tracking time. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dz Half-length along the z-asix
- // Double_t thet Polar angle of the line joing the center of the
- // face at -dz to the center of the one at dz
- // [degree].
- // Double_t phi aximuthal angle of the line joing the center of
- // the face at -dz to the center of the one at +dz
- // [degree].
- // Double_t h1 half-length along y of the face at -dz.
- // Double_t bl1 half-length along x of the side at -h1 in y of
- // the face at -dz in z.
- // Double_t tl1 half-length along x of teh side at +h1 in y of
- // the face at -dz in z.
- // Double_t alp1 angle with respect to the y axis from the center
- // of the side at -h1 in y to the cetner of the
- // side at +h1 in y of the face at -dz in z
- // [degree].
- // Double_t h2 half-length along y of the face at +dz
- // Double_t bl2 half-length along x of the side at -h2 in y of
- // the face at +dz in z.
- // Double_t tl2 half-length along x of the side at _h2 in y of
- // the face at +dz in z.
- // Double_t alp2 angle with respect to the y axis from the center
- // of the side at -h2 in y to the center of the
- // side at +h2 in y of the face at +dz in z
- // [degree].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[11];
-
- param[0] = fScale*dz;
- param[1] = thet;
- param[2] = phi;
- param[3] = fScale*h1;
- param[4] = fScale*bl1;
- param[5] = fScale*tl1;
- param[6] = alp1;
- param[7] = fScale*h2;
- param[8] = fScale*bl2;
- param[9] = fScale*tl2;
- param[10] = alp2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"TRAP",fidmed[med],param,11);
-}
-//______________________________________________________________________
-void AliITSv11::Tube(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t dz,Int_t med){
- // Interface to TMC->Gsvolu() for ITS TUBE geometries. Simple Tube. It has
- // 3 parameters. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t rmin Inside Radius.
- // Double_t rmax Outside Radius.
- // Double_t dz half-length along the z-axis
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[3];
-
- param[0] = fScale*rmin;
- param[1] = fScale*rmax;
- param[2] = fScale*dz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"TUBE",fidmed[med],param,3);
-}
-//______________________________________________________________________
-void AliITSv11::TubeSegment(const char gnam[3],const TString &dis,
- Double_t rmin,Double_t rmax,Double_t dz,
- Double_t phi1,Double_t phi2,Int_t med){
- // Interface to TMC->Gsvolu() for ITS TUBE geometries. Phi segment of a
- // tube. It has 5 parameters. Phi1 should be smaller than phi2. If this is
- // not the case, the system adds 360 degrees to phi2. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t rmin Inside Radius.
- // Double_t rmax Outside Radius.
- // Double_t dz half-length along the z-axis
- // Double_t phi1 Starting angle of the segment [degree].
- // Double_t phi2 Ending angle of the segment [degree].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[5];
-
- param[0] = fScale*rmin;
- param[1] = fScale*rmax;
- param[2] = fScale*dz;
- param[3] = phi1;
- param[4] = phi2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"TUBS",fidmed[med],param,5);
-}
-//______________________________________________________________________
-void AliITSv11::Cone(const char gnam[3],const TString &dis,Double_t dz,
- Double_t rmin1,Double_t rmax1,Double_t rmin2,
- Double_t rmax2,Int_t med){
- // Interface to TMC->Gsvolu() for ITS Cone geometries. Conical tube. It
- // has 5 parameters. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dz half-length along the z-axis
- // Double_t rmin1 Inside Radius at -dz.
- // Double_t rmax1 Outside Radius at -dz.
- // Double_t rmin2 inside radius at +dz.
- // Double_t rmax2 outside radius at +dz.
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[5];
-
- param[0] = fScale*dz;
- param[1] = fScale*rmin1;
- param[2] = fScale*rmax1;
- param[3] = fScale*rmin2;
- param[4] = fScale*rmax2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"CONS",fidmed[med],param,5);
-}
-//______________________________________________________________________
-void AliITSv11::ConeSegment(const char gnam[3],const TString &dis,Double_t dz,
- Double_t rmin1,Double_t rmax1,Double_t rmin2,
- Double_t rmax2,Double_t phi1,Double_t phi2,
- Int_t med){
- // Interface to TMC->Gsvolu() for ITS ConS geometries. One segment of a
- // conical tube. It has 7 parameters. Phi1 should be smaller than phi2. If
- // this is not the case, the system adds 360 degrees to phi2. See
- // SetScale() for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dz half-length along the z-axis
- // Double_t rmin1 Inside Radius at -dz.
- // Double_t rmax1 Outside Radius at -dz.
- // Double_t rmin2 inside radius at +dz.
- // Double_t rmax2 outside radius at +dz.
- // Double_t phi1 Starting angle of the segment [degree].
- // Double_t phi2 Ending angle of the segment [degree].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[7];
-
- param[0] = fScale*dz;
- param[1] = fScale*rmin1;
- param[2] = fScale*rmax1;
- param[3] = fScale*rmin2;
- param[4] = fScale*rmax2;
- param[5] = phi1;
- param[6] = phi2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"CONS",fidmed[med],param,7);
-}
-//______________________________________________________________________
-void AliITSv11::Sphere(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t the1,Double_t the2,Double_t phi1,
- Double_t phi2,Int_t med){
- // Interface to TMC->Gsvolu() for ITS SPHE geometries. Segment of a
- // sphereical shell. It has 6 parameters. See SetScale()
- // for units. Default units are geant 3 [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t rmin Inside Radius.
- // Double_t rmax Outside Radius.
- // Double_t the1 staring polar angle of the shell [degree].
- // Double_t the2 ending polar angle of the shell [degree].
- // Double_t phui staring asimuthal angle of the shell [degree].
- // Double_t phi2 ending asimuthal angle of the shell [degree].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[6];
-
- param[0] = fScale*rmin;
- param[1] = fScale*rmax;
- param[2] = the1;
- param[3] = the2;
- param[4] = phi1;
- param[5] = phi2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"SPHE",fidmed[med],param,6);
-}
-//______________________________________________________________________
-void AliITSv11::Parallelepiped(const char gnam[3],const TString &dis,
- Double_t dx,Double_t dy,Double_t dz,
- Double_t alph,Double_t thet,Double_t phi,
- Int_t med){
- // Interface to TMC->Gsvolu() for ITS PARA geometries. Parallelepiped. It
- // has 6 parameters. See SetScale() for units. Default units are geant 3
- // [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dx half-length allong x-axis
- // Double_t dy half-length allong y-axis
- // Double_t dz half-length allong z-axis
- // Double_t alpha angle formed by the y axis and by the plane
- // joining the center of teh faces parallel to the
- // z-x plane at -dY and +dy [degree].
- // Double_t thet polar angle of the line joining the centers of
- // the faces at -dz and +dz in z [degree].
- // Double_t phi azimuthal angle of teh line joing the centers of
- // the faaces at -dz and +dz in z [degree].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[6];
-
- param[0] = fScale*dx;
- param[1] = fScale*dy;
- param[2] = fScale*dz;
- param[3] = alpha;
- param[4] = thet;
- param[5] = phi;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"PARA",fidmed[med],param,6);
-}
-//______________________________________________________________________
-void AliITSv11::Polygon(const char gnam[3],const TString &dis,Double_t phi1,
- Double_t dphi,Int_t npdv,Int_t nz,Double_t *z,
- Double_t *rmin,Double_t *rmax,Double_t ,Int_t med){
- // Interface to TMC->Gsvolu() for ITS PGON geometry. Polygon It has 10
- // parameters or more. See SetScale() for units. Default units are geant 3
- // [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t phi1 the azimuthal angle at which the volume begins
- // (angles are counted clouterclockwise) [degrees].
- // Double_t dphi opening angle of the volume, which extends from
- // phi1 to phi1+dphi [degree].
- // Int_t npdv the number of sides of teh cross section between
- // the given phi limits.
- // Int_t nz number of planes perpendicular to the z axis
- // where the dimension of the section is given -
- // this number should be at least 2 and NP triples
- // of number must follow.
- // Double_t *z array [nz] of z coordiates of the sections..
- // Double_t *rmin array [nz] of radius of teh circle tangent to
- // the sides of the inner polygon in teh
- // cross-section.
- // Double_t *rmax array [nz] of radius of the circle tangent to
- // the sides of the outer polygon in the
- // cross-section.
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t *param;
- Int_t n,i;
-
- n = 4+3*nz;
- param = new Float_t[n]
- param[0] = phi1;
- param[1] = dphi;
- param[2] = (Float_t)npdv;
- param[3] = (Float_t)nz;
- for(i=0;i<nz;i++){
- param[4+3*i] = z[i];
- param[5+3*i] = rmin[i];
- param[6+3*i] = rmax[i];
- } // end for i
- name[0] = 'I';
- for(i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"PGON",fidmed[med],param,n);
-
- delete[] param;
-}
-//______________________________________________________________________
-void AliITSv11::PolyCone(const char gnam[3],const TString &dis,Double_t phi1,
- Double_t dphi,Int_t nz,Double_t *z,Double_t *rmin,
- Double_t *rmax,Int_t med){
- // Interface to TMC->Gsvolu() for ITS PCON geometry. Poly-cone It has 9
- // parameters or more. See SetScale() for units. Default units are geant 3
- // [cm].
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t phi1 the azimuthal angle at which the volume begins
- // (angles are counted clouterclockwise) [degrees].
- // Double_t dphi opening angle of the volume, which extends from
- // phi1 to phi1+dphi [degree].
- // Int_t nz number of planes perpendicular to the z axis
- // where the dimension of the section is given -
- // this number should be at least 2 and NP triples
- // of number must follow.
- // Double_t *z Array [nz] of z coordinate of the section.
- // Double_t *rmin Array [nz] of radius of teh inner circle in the
- // cross-section.
- // Double_t *rmax Array [nz] of radius of the outer circle in the
- // cross-section.
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t *param;
- Int_t n,i;
-
- n = 3+3*nz;
- param = new Float_t[n];
- param[0] = phi1;
- param[1] = dphi;
- param[2] = (Float_t) nz;
- for(i=0;i<nz;i++){
- param[3+3*i] = z[i];
- param[4+3*i] = rmin[i];
- param[5+3*i] = rmax[i];
- } // end for i
- name[0] = 'I';
- for(i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"PCON",fidmed[med],param,n);
-
- delete[] param;
-}
-//______________________________________________________________________
-void AliITSv11::TubeElliptical(const char gnam[3],const TString &dis,
- Double_t p1,Double_t p2,Double_t dz,Int_t med){
- // Interface to TMC->Gsvolu() for ITS ELTU geometries. Elliptical
- // cross-section Tube. It has 3 parameters. See SetScale()
- // for units. Default units are geant 3 [cm]. The equation of the surface
- // is x^2 * p1^-2 + y^2 * p2^-2 = 1.
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t p1 semi-axis of the elipse along x.
- // Double_t p2 semi-axis of the elipse along y.
- // Double_t dz half-length along the z-axis
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[3];
-
- param[0] = fScale*p1;
- param[1] = fScale*p2;
- param[2] = fScale*dz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"ELTU",fidmed[med],param,3);
-}
-//______________________________________________________________________
-void AliITSv11::HyperbolicTube(const char gnam[3],const TString &dis,
- Double_t rmin,Double_t rmax,Double_t dz,
- Double_t thet,Int_t med){
- // Interface to TMC->Gsvolu() for ITS HYPE geometries. Hyperbolic tube.
- // Fore example the inner and outer surfaces are hyperboloids, as would be
- // foumed by a system of cylinderical wires which were then rotated
- // tangentially about their centers. It has 4 parameters. See SetScale()
- // for units. Default units are geant 3 [cm]. The hyperbolic surfaces are
- // given by r^2 = (ztan(thet)^2 + r(z=0)^2.
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t rmin Inner radius at z=0 where tube is narrowest.
- // Double_t rmax Outer radius at z=0 where tube is narrowest.
- // Double_t dz half-length along the z-axis
- // Double_t thet stero angel of rotation of the two faces
- // [degrees].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[4];
-
- param[0] = fScale*rmin;
- param[1] = fScale*rmax;
- param[2] = fScale*dz;
- param[3] = thet;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"HYPE",fidmed[med],param,4);
-}
-//______________________________________________________________________
-void AliITSv11::TwistedTrapezoid(const char gnam[3],const TString &dis,
- Double_t dz,Double_t thet,Double_t phi,
- Double_t twist,Double_t h1,Double_t bl1,
- Double_t tl1,Double_t apl1,Double_t h2,
- Double_t bl2,Double_t tl2,Double_t apl2,
- Int_t med){
- // Interface to TMC->Gsvolu() for ITS GTRA geometries. General twisted
- // trapazoid. The faces perpendicular to z are trapazia and their centers
- // are not necessarily on a line parallel to the z axis as the TRAP.
- // Additionally, the faces may be twisted so that none of their edges are
- // parallel. It is a TRAP shape, exept that it is twisted in the x-y plane
- // as a function of z. The parallel sides perpendicular to the x axis are
- // rotated with respect to the x axis by an angle TWIST, which is one of
- // the parameters. The shape is defined by the eight corners and is assumed
- // to be constructed of straight lines joingin points on the boundry of the
- // trapezoidal face at Z=-dz to the coresponding points on the face at
- // z=+dz. Divisions are not allowed. It has 12 parameters. See SetScale()
- // for units. Default units are geant 3 [cm]. Note: This shape suffers from
- // the same limitations than the TRAP. The tracking routines assume that
- // the faces are planar, but htis constraint is not easily expressed in
- // terms of the 12 parameters. Additionally, no check on th efaces is
- // performed in this case. Users should avoid to use this shape as much as
- // possible, and if they have to do so, they should make sure that the
- // faces are really planes. If this is not the case, the result of the
- // trasport is unpredictable. To accelerat ethe computations necessary for
- // trasport, 18 additioanl parameters are calculated for this shape are
- // 1 DXODZ dx/dz of the line joing the centers of the faces at z=+_dz.
- // 2 DYODZ dy/dz of the line joing the centers of the faces at z=+_dz.
- // 3 XO1 x at z=0 for line joing the + on parallel side, perpendicular
- // corners at z=+_dz.
- // 4 YO1 y at z=0 for line joing the + on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 5 DXDZ1 dx/dz for line joing the + on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 6 DYDZ1 dy/dz for line joing the + on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 7 X02 x at z=0 for line joing the - on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 8 YO2 y at z=0 for line joing the - on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 9 DXDZ2 dx/dz for line joing the - on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 10 DYDZ2dy/dz for line joing the - on parallel side, + on
- // perpendicular corners at z=+-dz.
- // 11 XO3 x at z=0 for line joing the - on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 12 YO3 y at z=0 for line joing the - on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 13 DXDZ3 dx/dzfor line joing the - on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 14 DYDZ3 dydz for line joing the - on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 15 XO4 x at z=0 for line joing the + on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 16 YO4 y at z=0 for line joing the + on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 17 DXDZ4 dx/dz for line joing the + on parallel side, - on
- // perpendicular corners at z=+-dz.
- // 18 DYDZ4 dydz for line joing the + on parallel side, - on
- // perpendicular corners at z=+-dz.
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t dz half-length along the z axis.
- // Double_t thet polar angle of the line joing the center of the
- // face at -dz to the center of the one at +dz
- // [degrees].
- // Double_t phi Azymuthal angle of teh line joing the centre of
- // the face at -dz to the center of the one at +dz
- // [degrees].
- // Double_t twist Twist angle of the faces parallel to the x-y
- // plane at z=+-dz around an axis parallel to z
- // passing through their centre [degrees].
- // Double_t h1 Half-length along y of the face at -dz.
- // Double_t bl1 half-length along x of the side -h1 in y of the
- // face at -dz in z.
- // Double_t tl1 half-length along x of the side at +h1 in y of
- // the face at -dz in z.
- // Double_t apl1 Angle with respect to the y ais from the center
- // of the side at -h1 in y to the centere of the
- // side at +h1 in y of the face at -dz in z
- // [degrees].
- // Double_t h2 half-length along the face at +dz.
- // Double_t bl2 half-length along x of the side at -h2 in y of
- // the face at -dz in z.
- // Double_t tl2 half-length along x of the side at +h2 in y of
- // the face at +dz in z.
- // Double_t apl2 angle with respect to the y axis from the center
- // of the side at -h2 in y to the center of the side
- // at +h2 in y of the face at +dz in z [degrees].
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[12];
-
- param[0] = fScale*dz;
- param[1] = thet;
- param[2] = phi;
- param[3] = twist;
- param[4] = fScale*h1;
- param[5] = fScale*bl1;
- param[6] = fScale*tl1;
- param[7] = alp1;
- param[8] = fScale*h2;
- param[9] = fScale*bl2;
- param[10] = fScale*tl2;
- param[11] = alp2;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"GTRA",fidmed[med],param,12);
-}
-//______________________________________________________________________
-void AliITSv11::CutTube(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t dz,Double_t phi1,Double_t phi2,
- Double_t lx,Double_t ly,Double_t lz,Double_t hx,
- Double_t hy,Double_t hz,Int_t med){
- // Interface to TMC->Gsvolu() for ITS CTUB geometries. Cut tube. A tube cut
- // at the extremities with planes not necessarily perpendicular tot he z
- // axis. It has 11 parameters. See SetScale() for units. Default units are
- // geant 3 [cm]. phi1 should be smaller than phi2. If this is not the case,
- // the system adds 360 degrees to phi2.
- // Inputs:
- // const char gnam[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // TString &dis String containging part discription.
- // Double_t rmin Inner radius at z=0 where tube is narrowest.
- // Double_t rmax Outer radius at z=0 where tube is narrowest.
- // Double_t dz half-length along the z-axis
- // Double_t dz half-length along the z-axis
- // Double_t phi1 Starting angle of the segment [degree].
- // Double_t phi2 Ending angle of the segment [degree].
- // Double_t lx x component of a unit vector perpendicular to
- // the face at -dz.
- // Double_t ly y component of a unit vector perpendicular to
- // the face at -dz.
- // Double_t lz z component of a unit vector perpendicular to
- // the face at -dz.
- // Double_t hx x component of a unit vector perpendicular to
- // the face at +dz.
- // Double_t hy y component of a unit vector perpendicular to
- // the face at +dz.
- // Double_t hz z component of a unit vector perpendicular to
- // the face at +dz.
- // Int_t med media index number.
- // Output:
- // none.
- // Return.
- // none.
- char name[4];
- Float_t param[11];
-
- param[0] = fScale*rmin;
- param[1] = fScale*rmax;
- param[2] = fScale*dz;
- param[3] = phi1;
- param[4] = phi2;
- param[5] = lx;
- param[6] = ly;
- param[7] = lz;
- param[8] = hx;
- param[9] = hy;
- param[10] = hz;
- name[0] = 'I';
- for(Int_t i=0;i<3;i++) name[i+1] = gnam[i];
- gMC->Gsvolu(name,"CTUB",fidmed[med],param,11);
-}
-//______________________________________________________________________
-void AliITSv11::Pos(const char vol[3],Int_t cn,const char moth[3],Double_t x,
- Double_t y,Double_t z,Int_t irot){
- // Place a copy of a volume previously defined by a call to GSVOLU inside
- // its mother volulme moth.
+ // Standard default constructor for the ITS version 11.
// Inputs:
- // const char vol[3] 3 character geant volume name. The letter "I"
- // is appended to the front to indecate that this
- // is an ITS volume.
- // const char moth[3] 3 character geant volume name of the mother volume
- // in which vol will be placed. The letter "I" is
- // appended to the front to indecate that this is an
- // ITS volume.
- // Double_t x The x positon of the volume in the mother's
- // reference system
- // Double_t y The y positon of the volume in the mother's
- // reference system
- // Double_t z The z positon of the volume in the mother's
- // reference system
- // Int_t irot the index for the rotation matrix to be used.
- // irot=-1 => unit rotation.
+ // none.
// Outputs:
- // none.
- // Return:
- // none.
- char name[4],mother[4];
- Float_t param[3];
- Int_t r=0,i;
+ // none.
+ // Return
+ // A default constructed AliITSv11 class.
- param[0] = x;
- param[1] = y;
- param[2] = z;
- name[0] = 'I';
- for(i=0;i<3;i++) name[i+1] = vol[i];
- mother[0] = 'I';
- for(i=0;i<3;i++) mother[i+1] = moth[i];
- if(irot>=0) r=fidrot[irot];
- fMC->Gspos(name,mother,param[0],param[1],param[2],r,"ONLY");
+ fc = 0;
}
//______________________________________________________________________
-void AliITSv11::Matrix(Int_t irot,Double_t thet1,Double_t phi1,
- Double_t thet2,Double_t phi2,
- Double_t thet3,Double_t phi3){
- // Defines a Geant rotation matrix. checks to see if it is the unit
- // matrix. If so, then no additonal matrix is defined. Stores rotation
- // matrix irot in the data structure JROTM. If the matrix is not
- // orthonormal, it will be corrected by setting y' perpendicular to x'
- // and z' = x' X y'. A warning message is printed in this case.
+AliITSv11::AliITSv11(const char *title) : AliITS("ITS", title){
+ // Standard constructor for the ITS version 11.
// Inputs:
- // Int_t irot Intex specifing which rotation matrix.
- // Double_t thet1 Polar angle for axisw x [degrees].
- // Double_t phi1 azimuthal angle for axis x [degrees].
- // Double_t thet12Polar angle for axisw y [degrees].
- // Double_t phi2 azimuthal angle for axis y [degrees].
- // Double_t thet3 Polar angle for axisw z [degrees].
- // Double_t phi3 azimuthal angle for axis z [degrees].
+ // none.
// Outputs:
- // none.
- // Return:
- // none.
- Float_t t1,p1,t2,p2,t3,p3;
+ // none.
+ // Return
+ // A Standard constructed AliITSv11 class.
- if(thet1==90.0&&phi1==0.0&&thet2==90.0&&phi2==90.0&&thet3==0.0&&phi3==0.0){
- fidrot[irot] = 0; // Unit matrix
- }else{
- t1 = thet1;
- p1 = phi1;
- t2 = thet2;
- p2 = phi2;
- t3 = thet3;
- p3 = phi3
- AliMatrix(fidrot[irot],t1,p1,t2,p2,t3,p3);
- } // end if
+ fc = 0;
}
//______________________________________________________________________
-void AliITSv11::Matrix(Int_t irot,Int_t axis,Double_t thet){
- // Defines a Geant rotation matrix. checks to see if it is the unit
- // matrix. If so, then no additonal matrix is defined. Stores rotation
- // matrix irot in the data structure JROTM. If the matrix is not
- // orthonormal, it will be corrected by setting y' perpendicular to x'
- // and z' = x' X y'. A warning message is printed in this case.
+AliITSv11::~AliITSv11() {
+ // Standard destructor for the ITS version 11.
// Inputs:
- // Int_t irot Intex specifing which rotation matrix.
- // Int_t axis Axis about which rotation is to be done.
- // Double_t thet Angle to rotate by [degrees].
+ // none.
// Outputs:
- // none.
- // Return:
- // none.
+ // none.
+ // Return
+ // none.
- if(thet==0.0){
- fidrot[irot] = 0; // Unit matrix
- }else{
- switch (irot) {
- case 0: //Rotate about x-axis, x-axis does not change.
- AliMatrix(fidrot[irot],90.0,0.0,90.0+thet,90.0,thet,90.0);
- break;
- case 1: //Rotate about y-axis, y-axis does not change.
- AliMatrix(fidrot[irot],-90.0-thet,0.0,90.0,90.0,thet,90.0);
- break;
- case 2: //Rotate about z-axis, z-axis does not change.
- AliMatrix(fidrot[irot],90.0,thet,90.0,-thet-90.0,0.0,0.0);
- break;
- default:
- Error("Matrix","axis must be either 0, 1, or 2. for matrix=%d",
- irot);
- break;
- } // end switch
- } // end if
+ if(fc!=0) delete fc;
}
//______________________________________________________________________
-void AliITSv11::Matrix(Int_t irot,Double_t rot[3][3]){
- // Defines a Geant rotation matrix. checks to see if it is the unit
- // matrix. If so, then no additonal matrix is defined. Stores rotation
- // matrix irot in the data structure JROTM. If the matrix is not
- // orthonormal, it will be corrected by setting y' perpendicular to x'
- // and z' = x' X y'. A warning message is printed in this case.
+void AliITSv11::BuildGeometry(){
+ // This routine defines and Creates the geometry for version 11 of the ITS
+ // for use in the simulation display routines. This is a very simplified
+ // geometry for speed of viewing.
// Inputs:
- // Int_t irot Intex specifing which rotation matrix.
- // Double_t rot[3][3] The 3 by 3 rotation matrix.
+ // none.
// Outputs:
- // none.
- // Return:
- // none.
-
- if(rot[0][0]==1.0&&rot[1][1]==1.0&&rot[2][2]==1.0&&
- rot[0][1]==0.0&&rot[0][2]==0.0&&rot[1][0]==0.0&&
- rot[1][2]==0.0&&rot[2][0]==0.0&&rot[2][1]==0.0){
- fidrot[irot] = 0; // Unit matrix
- }else{
- Double_t si,c=180./TMath::Pi();
- Double_t ang[6];
-
- ang[1] = TMath::ATan2(rot[0][1],rot[0][0]);
- if(TMath::Cos(ang[1])!=0.0) si = rot[0][0]/TMath::Cos(ang[1]);
- else si = rot[0][1]/TMath::Sin(ang[1]);
- ang[0] = TMath::ATan2(si,rot[0][2]);
-
- ang[3] = TMath::ATan2(rot[1][1],rot[1][0]);
- if(TMath::Cos(ang[3])!=0.0) si = rot[1][0]/TMath::Cos(ang[3]);
- else si = rot[1][1]/TMath::Sin(ang[3]);
- ang[2] = TMath::ATan2(si,rot[1][2]);
+ // none.
+ // Return
+ // none.
- ang[5] = TMath::ATan2(rot[2][1],rot[2][0]);
- if(TMath::Cos(ang[5])!=0.0) si = rot[2][0]/TMath::Cos(ang[5]);
- else si = rot[2][1]/TMath::Sin(ang[5]);
- ang[4] = TMath::ATan2(si,rot[2][2]);
+ if(fc==0) fc = new AliITSGeometrySSDCone(new TVector3(0.0,0.0,0.0),"TSV",0);
- for(Int_t i=0;i<6;i++) {ang[i] *= c; if(ang[i]<0.0) ang[i] += 360.;}
- AliMatrix(fidrot[irot],ang[0],ang[1],ang[2],ang[3],ang[4],ang[5]);
- } // end if
+ fc->BuildDisplayGeometry();
}
//______________________________________________________________________
-Float_t AliITSv11::GetA(Int_t z){
- // Returns the isotopicaly averaged atomic number.
- // Inputs:
- // Int_t z Elemental number
- // Outputs:
- // none.
- // Return:
- // The atomic mass number.
- const Float_t A[]={ 1.00794 , 4.0026902, 6.941 , 9.012182 , 10.811 ,
- 12.01007 , 14.00674 , 15.9994 , 18.9984032, 20.1797 ,
- 22.98970 , 24.3050 , 26.981538, 28.0855 , 30.973761,
- 32.066 , 35.4527 , 39.948 , 39.0983 , 40.078 ,
- 44.95591 , 47.867 , 50.9415 , 51.9961 , 54.938049,
- 55.845 , 58.933200 , 58.6934 , 63.546 , 65.39 ,
- 69.723 , 72.61 , 74.92160 , 78.96 , 79.904 ,
- 83.80 , 85.4678 , 87.62 , 88.9085 , 91.224 ,
- 92.90638 , 95.94 , 97.907215, 101.07 ,102.90550 ,
- 106.42 ,107.8682 ,112.411 ,114.818 ,118.710 ,
- 121.760 ,127.60 ,126.90447 ,131.29 ,132.90545 ,
- 137.327 ,138.9055 ,140.116 ,140.90765 ,144.24 ,
- 144.912746,150.36 ,151.964 ,157.25 ,158.92534 ,
- 162.50 ,164.93032 ,167.26 ,168.93421 ,173.04 ,
- 174.967 ,178.49 ,180.9479 ,183.84 ,186.207 ,
- 190.23 ,192.217 ,195.078 ,196.96655 ,200.59 ,
- 204.3833 ,207.2 ,208.98038,208.982415 ,209.987131,
- 222.017570 ,223.019731,226.025402,227.027747 ,232.0381 ,
- 231.03588 238.0289};
-
- if(z<1||z>92){
- Error("GetA","z must be 0<z<93. z=%d",z);
- return 0.0;
- } // end if
- return A[z-1];
-}
-//______________________________________________________________________
-Float_t AliITSv11::GetStandardMaxStepSize(Int_t istd){
- // Returns one of a set of standard Maximum Step Size values.
- // Inputs:
- // Int_t istd Index to indecate which standard.
- // Outputs:
- // none.
- // Return:
- // The appropreate standard Maximum Step Size value [cm].
- Float_t t[]={1.0, // default
- 0.0075, // Silicon detectors...
- 1.0, // Air in central detectors region
- 1.0 // Material in non-centeral region
- };
- return t[istd];
-}
-//______________________________________________________________________
-Float_t AliITSv11::GetStandardThetaMax(Int_t istd){
- // Returns one of a set of standard Theata Max values.
- // Inputs:
- // Int_t istd Index to indecate which standard.
- // Outputs:
- // none.
- // Return:
- // The appropreate standard Theta max value [degrees].
- Float_t t[]={0.1, // default
- 0.1, // Silicon detectors...
- 0.1, // Air in central detectors region
- 1.0 // Material in non-centeral region
- };
- return t[istd];
-}
-//______________________________________________________________________
-Float_t AliITSv11::GetStandardEfraction(Int_t istd){
- // Returns one of a set of standard E fraction values.
+void AliITSv11::CreateGeometry(){
+ // This routine defines and Creates the geometry for version 11 of the ITS.
// Inputs:
- // Int_t istd Index to indecate which standard.
+ // none.
// Outputs:
- // none.
- // Return:
- // The appropreate standard E fraction value [#].
- Float_t t[]={0.1, // default
- 0.1, // Silicon detectors...
- 0.1, // Air in central detectors region
- 1.0 // Material in non-centeral region
- };
- return t[istd];
-}
-//______________________________________________________________________
-void AliITSv11::Element(Int_t imat,const char* name,Int_t z,Double_t dens,
- Int_t istd){
- // Defines a Geant single element material and sets its Geant medium
- // proporties. The average atomic A is assumed to be given by their
- // natural abundances. Things like the radiation length are calculated
- // for you.
- // Inputs:
- // Int_t imat Material number.
- // const char* name Material name. No need to add a $ at the end.
- // Int_t z The elemental number.
- // Double_t dens The density of the material [g/cm^3].
- // Int_t istd Defines which standard set of transport parameters
- // which should be used.
- // Output:
- // none.
- // Return:
- // none.
- Float_t rad,Z,A=GetA(z),tmax,stemax,deemax,epsilon;
- char *name2;
- Int_t len;
-
- len = strlng(name)+1;
- name2 = new char[len];
- strncpy(name2,name,len-1);
- name2[len-1] = '\0';
- name2[len-2] = '$';
- Z = (Float_t)z;
- rad = GetRadLength(z)/dens;
- AliMaterial(imat,name2,A,Z,dens,rad,0.0,0,0);
- tmax = GetStandardTheataMax(istd); // degree
- stemax = GetStandardMaxStepSize(istd); // cm
- deemax = GetStandardEfraction(istd); // #
- epsilon = GetStandardEpsilon(istd);
- AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
- gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
- delete[] name2;
-}
-//______________________________________________________________________
-void AliITSv11::MixtureByWeight(Int_t imat,const char* name,Int_t *z,
- Double_t *w,Double_t dens,Int_t n,Int_t istd){
- // Defines a Geant material by a set of elements and weights, and sets
- // its Geant medium proporties. The average atomic A is assumed to be
- // given by their natural abundances. Things like the radiation length
- // are calculated for you.
- // Inputs:
- // Int_t imat Material number.
- // const char* name Material name. No need to add a $ at the end.
- // Int_t *z Array of The elemental numbers.
- // Double_t *w Array of relative weights.
- // Double_t dens The density of the material [g/cm^3].
- // Int_t n the number of elements making up the mixture.
- // Int_t istd Defines which standard set of transport parameters
- // which should be used.
- // Output:
- // none.
- // Return:
- // none.
- Float_t rad,*Z,*A,tmax,stemax,deemax,epsilon;
- char *name2;
- Int_t len,i;
- Z = new Float_t[n];
- A = new Float_t[n];
+ // none.
+ // Return
+ // none.
- len = strlng(name)+1;
- name2 = new char[len];
- strncpy(name2,name,len-1);
- name2[len-1] = '\0';
- name2[len-2] = '$';
- for(i=0;i<n;i++){Z[i] = (Float_t)z[i];A[i] = (Float_t)GetA(z[i]);
- W[i] = (Float_t)w[i]}
- rad = GetRadLength(z)/dens;
- AliMixture(imat,name2,A,Z,dens,n,W);
- tmax = GetStandardTheataMax(istd); // degree
- stemax = GetStandardMaxStepSize(istd); // cm
- deemax = GetStandardEfraction(istd); // #
- epsilon = GetStandardEpsilon(istd);
- AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
- gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
- delete[] name2;
+ if(fc==0) fc = new AliITSGeometrySSDCone(new TVector3(0.0,0.0,0.0),"TSV",0);
+ TVector3 t(0.0,0.0,0.0);
+ fc->CreateG3Geometry(t,"ITSV",0);
}
//______________________________________________________________________
-void AliITSv11::MixtureByNumber(Int_t imat,const char* name,Int_t *z,
- Int_t *w,Double_t dens,Int_t n,Int_t istd){
- // Defines a Geant material by a set of elements and number, and sets
- // its Geant medium proporties. The average atomic A is assumed to be
- // given by their natural abundances. Things like the radiation length
- // are calculated for you.
- // Inputs:
- // Int_t imat Material number.
- // const char* name Material name. No need to add a $ at the end.
- // Int_t *z Array of The elemental numbers.
- // Int_t_t *w Array of relative number.
- // Double_t dens The density of the material [g/cm^3].
- // Int_t n the number of elements making up the mixture.
- // Int_t istd Defines which standard set of transport parameters
- // which should be used.
- // Output:
- // none.
- // Return:
- // none.
- Float_t rad,*Z,*A,tmax,stemax,deemax,epsilon;
- char *name2;
- Int_t len,i;
- Z = new Float_t[n];
- A = new Float_t[n];
-
- len = strlng(name)+1;
- name2 = new char[len];
- strncpy(name2,name,len-1);
- name2[len-1] = '\0';
- name2[len-2] = '$';
- for(i=0;i<n;i++){Z[i] = (Float_t)z[i];A[i] = (Float_t)GetA(z[i]);
- W[i] = (Float_t)w[i]}
- rad = GetRadLength(z)/dens;
- AliMixture(imat,name2,A,Z,dens,-n,W);
- tmax = GetStandardTheataMax(istd); // degree
- stemax = GetStandardMaxStepSize(istd); // cm
- deemax = GetStandardEfraction(istd); // #
- epsilon = GetStandardEpsilon(istd);
- AliMedium(imat,name2,imat,0,gAlice->Field()->Integ(),
- gAlice->Field()->Max(),tmax,stemax,deemax,epsilon,0.0);
- delete[] name2;
-//______________________________________________________________________
-void AliITSv11::SSDConeDetail(TVector3 &tran,const char moth[3],Int_t mat0){
- // Defines the volumes and materials for the ITS SSD Support cone.
- // Based on drawings ALR-0767 and ALR-0767/3. Units are in mm.
+void AliITSv11::CreateMaterials(){
+ // Create ITS materials
+ // This function defines the default materials used in the Geant
+ // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
+ // AliITSv11.
+ // In general it is automatically replaced by
+ // the CreatMaterials routine defined in AliITSv?. Should the function
+ // CreateMaterials not exist for the geometry version you are using this
+ // one is used. See the definition found in AliITSv5 or the other routine
+ // for a complete definition.
// Inputs:
- // Double_t zShift The z shift to be applied to the final volume.
+ // none.
// Outputs:
// none.
- // Return:
+ // Return
// none.
- Double_t th = 13.0; //mm, Thickness of Rohacell+carbon fiber
- Double_t ct=1.5; //mm, Carbon finber thickness
- Double_t r=15.0; // mm, Radius of curvature.
- Double_t tc=51.0; // angle of SSD cone [degrees].
- Double_t sintc=Sind(tc),costc=Cosd(tc),tantc=Tand(tc);
- Double_t z0=0.0,zcylinder=170.0,zpost=196.0;
- Double_t Routmax=0.5*985.0,RoutHole=0.5*965.0,Routmin=0.5*945.0;
- Double_t Rholemax=0.5*890.0,Rholemin=0.5*740.0;
- Double_t RPostmin=316.0,dRPost=23.0,zpostmax=196.0,phi0post=30.0;
- Double_t Rinmax=0.5*590.0,Rincylinder=0.5*597.0,RinHole=0.5*575.0,
- Rinmin=0.5*562.0,dzin=15.0;
- Int_t nspoaks=12,ninscrews=40,npost=4,nmounts=4;
- Int_t SSDcf=man0+1; // SSD support cone Carbon Fiber materal number.
- Int_t SSDfs=mat0+2; // SSD support cone inserto stesalite 4411w.
- Int_t SSDfo=mat0+3; // SSD support cone foam, Rohacell 50A.
- Int_t SSDsw=mat0+4; // SSD support cone screw material,Stainless steal
- Int_t ncse=0; // number of screw ends (copy number)
- Int_t ncpe=0; // number of pin end (copy number)
- Int_t ncst=0; // number of screw tops (copy number)
- Double_t t; // some general angle [degrees].
- Double_t phi0=0.0,dphi=360.0,x,y,z;
- Int_t i,j,k,l,n,nz,nrad=0;
- SetScalemm();
- // Lets start with the upper left outer carbon fiber surface.
- // Between za[2],rmaxa[2] and za[4],rmaxa[4] there is a curved section
- // given by rmaxa = rmaxa[2]-r*Sind(t) for 0<=t<=tc and
- // za = za[2] + r*Cosd(t) for 0<=t<=tc. Simularly between za[1],rmina[1
- // and za[3],rmina[3] there is a curve section given by
- // rmina = rmina[1]-r*Sind(t) for 0<=t<=tc and za = za[1]+r&Sind(t)
- // for t<=0<=tc. These curves have been replaced by straight lines
- // between the equivelent points for simplicity.
- Double_t dza = th/sintc-(Routmax-Routmin)/tantc;
- if(dza<=0){ // The number or order of the points are in error for a proper
- // call to pcons!
- Error("SSDcone","The definition of the points for a call to PCONS is"
- " in error. abort.");
- return;
- } // end if
- nz = 7;
- Double_t *za = new Double_t[nz];
- Double_t *rmina = new Double_t[nz];
- Double_t *rmaxa = new Double_t[nz];
- za[0] = z0;
- rmina[0] = Routmin;
- rmaxa[0] = Routmax;
- za[1] = za[0]+13.5-5.0 - dza; // za[2] - dza.
- rmina[1] = rmina[0];
- rmaxa[1] =rmaxa[0];
- za[2] = za[0]+13.5-5.0; // From Drawing ALR-0767 and ALR-0767/3
- rmaxa[2] = rmaxa[0];
- za[3] = za[1]+rc*sintc;
- rmina[3] = rmina[1]-rc*sintc;
- rmina[2] = rmina[1]+(rmina[3]-rmina[1])*(za[2]-za[1])/(za[3]-za[1]);
- za[4] = za[2]+rc*sintc;
- rmaxa[4] = rmaxa[2]-rc*sintc;
- rmaxa[3] = rmaxa[2]+(rmaxa[4]-rmaxa[2])*(za[3]-za[2])/(za[4]-za[2]);
- rmina[5] = Rholemax;
- za[5] = za[3]+(za[4]-za[3])*(rmina[5]-rmina[3])/(rmina[4]-rmina[3]);
- rmina[4] = rmina[3]+(rmina[5]-rmina[3])*(za[4]-za[3])/(za[5]-za[3]);
- za[6] = th/sinth+za[5];
- rmina[6] = Rholemax;
- rmaxa[6] = rmina[6];
- rmaxa[5] = rmaxa[4]+(rmaxa[6]-rmaxa[4])*(za[5]-za[4])/(za[6]-za[4]);
- //
- PolyCone("SCA","SSD Suport cone Carbon Fiber Surface outer left",
- phi0,dphi,nz,*z,*rmin,*rmax,SSDcf);
- Pos("SCA",1,moth,trans.x(),trans.y(),trans.z(),0);
- XMatrix(1,180.0);
- Pos("SCA",2,moth,trans.x(),trans.y(),-trans.z(),1);
- Za[0] = 1.; Wa[0] = ; // Hydrogen Content
- Za[1] = 6.; Wa[1] = ; // Carbon Content
- MixtureByWeight(SSDcf,"Carbon Fiber for SSD support cone",Z,W,dens,2);
- //
- // Now lets define the Inserto Stesalite 4411w material volume.
- nz = 6;
- Double_t *zb = new Double_t[nz];
- Double_t *rminb = new Double_t[nz];
- Double_t *rmaxb = new Double_t[nz];
- zb[0] = z0;
- rminb[0] = rmina[0]+ct;
- rmaxb[0] = rmaxa[0]-ct;
- zb[1] = za[1];
- rminb[1] = rminb[0];
- rmaxb[1] = rmaxb[0];
- zb[2] = za[2];
- rmaxb[2] = rmaxb[1];
- zb[3] = za[4] - ct/sintc;
- rmaxb[3] = rmaxb[2] - (rc-ct)*sintc;
- zb[4] = za[3]+ct/sintc;
- rminb[4] = rminb[1]-(rc-ct)*sintc;
- rminb[2] = rminb[1]+(rminb[4]-rminb[1])*(zb[2]-zb[1])/(zb[4]-zb[1]);
- rminb[3] = rminb[1]+(rminb[4]-rminb[1])*(zb[3]-zb[1])/(zb[4]-zb[1]);
- zb[5] = zb[4]+(ct-2.*ct)/sintc;
- rminb[5] = rminb[4]+(ct-2.*ct)*tantc;
- rmaxb[5] = rminb[5];
- rmaxb[4] = rmaxb[3]+(rmaxb[5]-rmaxb[3])*(zb[4]-zb[3])/(zb[5]-zb[3]);
- PolyCone("SCB","SSD Suport cone Inserto Stesalite left edge",
- phi0,dphi,nz,*zb,*rminb,*rmaxb,SSDfs);
- Pos("SCB",1,"SCA",0.0,.0,0.0,0);
- Za[0] = 1.; Wa[0] = ; // Hydrogen Content
- Za[1] = 6.; Wa[1] = ; // Carbon Content
- MixtureByWeight(SSDfs,"Inserto stealite 4411w for SSD support cone",
- Z,W,dens,3);
- //
- // Now lets define the Rohacell foam material volume.
- nz = 4;
- Double_t *zc = new Double_t[nz];
- Double_t *rminc = new Double_t[nz];
- Double_t *rmaxc = new Double_t[nz];
- zc[0] = zb[4];
- rminc[0] = rminb[4];
- rmaxc[0] = rmminc[0];
- zc[1] = zb[5];
- rmaxc[1] = rminb[5];
- zc[2] = za[5] + ct/sintc;
- rminc[2] = rmina[5]+ct; // leave space for carbon fiber covering hole.
- rminc[1] = rminc[0] +(rminc[2]-rminc[0])*(zc[1]-zc[0])/(zc[2]-zc[0]);
- zc[3] = za[6] - ct/sintc;
- rminc[3] = rmina[6]+ct;
- rmaxc[3] = rminc[3];
- rmaxc[2] = rmaxc[1]+(rmaxc[3]-rmaxc[1])*(zc[2]-zc[1])/(zc[3]-zc[1]);
- PolyCone("SCC","SSD Suport cone Rohacell foam left edge",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfo);
- Pos("SCC",1,"SCA",0.0,.0,0.0,0);
- Za[0] = 1.; Wa[0] = ; // Hydrogen Content
- Za[1] = 6.; Wa[1] = ; // Carbon Content
- MixtureByWeight(SSDfo,"Foam core (Rohacell 50A) for SSD support cone",
- Z,W,dens,3);
- //
- // In volume SCB, th Inserto Stesalite 4411w material volume, there
- // are a number of Stainless steel screw and pin studs which will be
- // filled with screws/studs.
- Double_t rmin=0.0,rmax=6.0,dz=0.5*10.0; // mm
- Tube("SCD","Screw+stud used to mount things to the SSD support cone",
- rmin,rmax,dz,SSDsw);
- rmin=0.0;rmax=6.0;dz=0.5*12.0; // mm
- Tube("SCE","pin used to mount things to the SSD support cone",
- rmin,rmax,dz,SSDsw);
- Za[0] = 6.; Wa[0] = ; // Carbon Content
- Za[1] = 25.; Wa[1] = ; // Iron Content
- MixtureByWeight(SSDsw,"Stainless steal screw, pin, and stud material",
- Z,W,dens,3);
- k=l=0;
- for(i=0;i<2;i++){ // position for ITS-TPC mounting brackets
- for(j=0;j<2;j++){ // 2 screws per bracket
- ncse++;
- t = -5.0+10.0*((Double_t)j)+180.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCD",ncse,"SCB",x,y,z,0);
- } // end for j
- for(j=0;j<3;j++){ // 3 pins per bracket
- ncpe++;
- t = -3.0+3.0*((Double_t)j)+180.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCE",ncpe,"SCB",x,y,z,0);
- } // end for j
- } // end for i
- for(i=0;i<2;i++){ // position for ITS-rail mounting brackets
- for(j=0;j<4;j++){ // 4 screws per bracket
- Double_t a[4]={0.0,2.0,5.0,7.0}; // Relative angles.
- ncse++;
- t = 90.0-a[j]+187.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCD",kncs,"SCB",x,y,z,0);
- } // end for j
- for(j=0;j<2;j++){ // 2 pins per bracket
- ncpe++;
- t = 88+7.0*((Double_t)j)+184.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCE",ncse,"SCB",x,y,z,0);
- } // end for j
- } // end for i
- for(i=0;i<nmounts;i++){ // mounting holes/screws for beam pipe support
- // and SPD cone support (dump side,non-dump side has them to).
- for(j=0;j<2;j++){ // 2 screws per bracket
- ncse++;
- t = 180.*20./(RoutHole*TMath::Pi());
- t = 45.0+((Doulbe_t)(j-1))*t+90.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCD",ncse,"SCB",x,y,z,0);
- } // end for j
- for(j=0;j<1;j++){ // 1 pins per bracket
- ncpe++;
- t = 45.0+90.*((Double_t)i);
- x = RoutHole*Sind(t);
- y = RoutHole*Cosd(t);
- z = dz;
- Pos("SCE",ncpe,"SCB",x,y,z,0);
- } // end for j
- } // end for i
- //
- // There is no carbon fiber between this upper left section and the
- // SSD spoaks. We remove it by replacing it with Rohacell foam.
- t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
- // carbon fiber thickness uniform in this phi direction. We can only
- // make it a fixed angular thickness.
- t *= 180.0/TMath::Pi();
- dphi = 5.0 - 2.0*t; // degrees
- phi0 = 12.5+t; // degrees see drawing ALR-0767.
- nz = 4;
- Double_t *zf = new Double_t[nz];
- Double_t *rminf = new Double_t[nz];
- Double_t *rmaxf = new Double_t[nz];
- zf[0] = zc[2];
- rminf[0] = rminc[3];
- rmaxf[0] = rminf[0];
- rminf[1] = rmina[5];
- rmaxf[1] = rminf[0];
- zf[1] = zc[0]+(zc[2]-zc[0])*(rminf[1]-rminc[0])/(rminc[2]-rminc[0]);
- zf[2] = zc[3];
- rminf[2] = rminf[1];
- rmaxf[2] = rmaxf[1];
- zf[3] = zc[1]+(zc[3]-zc[1])*(rmaxf[3]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
- rminf[3] = rmina[5];
- rmaxf[3] = rminf[3];
- PolyCone("SCF","SSD Suport cone Rohacell foam left edge",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfo);
- Pos("SCF",1,"SCA",0.0,.0,0.0,0);
- for(i=1;i<nspoaks;i++){
- Zmatrix(irot+i,360./((Double_t)nspoaks));
- Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
- } // end for i
- //=================================================================
- // Now for the spoak part of the SSD cone.
- // It is not posible to inclue the radius of curvature between
- // the spoak part and the upper left part of the SSD cone or lowwer right
- // part. This would be discribed by the following curves.
- // R = Rmax - (5mm)*Sin(t) phi = phi0+(5mm*180/(Pi*RoutHole))*Sin(t)
- // where 0<=t<=90 For the inner curve a simular equiation holds.
- phi0 = 12.5; // degrees see drawing ALR-0767.
- dphi = 5.0; // degrees
- nz = 4;
- Double_t *zg = new Double_t[nz];
- Double_t *rming = new Double_t[nz];
- Double_t *rmaxg = new Double_t[nz];
- zg[0] = zb[5];
- rming[0] = rmina[5];
- rmaxg[0] = rming[0];
- zg[1] = za[6];
- rming[1] = -thatc*(zg[1]-za[3])+rmina[3];
- rmaxg[1] = rmaxg[0];
- rming[2] = Rholemin;
- zg[2] = za[3]-(rming[2]-rmina[3])/tantc;
- rmaxg[2] = -thatc*(zg[2]-za[4])+rmaxa[4];
- rming[3] = rming[2];
- rmaxg[3] = rming[3];
- zg[3] = za[4]-(rmaxg[3]-rmaxa[4])/tantc;
- PolyCone("SCG","SSD spoak carbon fiber surfaces",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDcf);
- Pos("SCG",i+1,"SCA",0.0,.0,0.0,0);
- for(i=1;i<nspoaks;i++){
- Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
- } // end for i
- // For the foam core.
- t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
- // carbon fiber thickness uniform in this phi direction. We can only
- // make it a fixed angular thickness.
- t *= 180.0/TMath::Pi();
- dphi = 5.0 - 2.0*t; // degrees
- phi0 = 12.5+t; // degrees see drawing ALR-0767.
- nz = 4;
- Double_t *zh = new Double_t[nz];
- Double_t *rminh = new Double_t[nz];
- Double_t *rmaxh = new Double_t[nz];
- zh[0] = zf[2];
- rminh[0] = rming[0];
- rmaxh[0] = rmaxg[0];
- zh[1] = zf[3];
- rminh[1] = rming[1]-(ct/sintc-(zg[1]-zh[1]))*tantc;
- rmaxh[1] = rmaxh[0];
- zh[2] = zg[2]+ct/tanth;
- rminh[2] = rming[2];
- rmaxh[2] = rmaxg[2]-(ct/sintc-(zg[2]-zh[2]))*tantc;
- zh[3] = zg[3]-ct/sintc;
- rminh[3] = rminh[2];
- rmaxh[3] = rminh[3];
- PolyCone("SCH","SSD spoak foam core",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfo);
- Pos("SCH",1,"SCG",0.0,.0,0.0,0);
- //
- //==================================================================
- // Now for the Inner most part of the SSD cone.
- phi0 = 0.0;
- dphi = 360.0;
- nz = 8;
- Double_t *zi = new Double_t[nz];
- Double_t *rmini = new Double_t[nz];
- Double_t *rmaxi = new Double_t[nz];
- Double_t za,rmina,rmaxa; // additional point not needed in call to pcons.
- zi[0] = zg[2];
- rmini[0] = rming[2];
- rmaxi[0] = rmini[0];
- zi[1] = zg[3];
- rmini[1] = -tantc*(zi[1]-za[3])+rmina[3];
- rmaxi[1] = rmaxi[0];
- rmini[5] = Rinmin;
- rmaxi[5] = Rinmax+rc*sintc;
- zi[5] =za[4]+(rmaxa[4]-rmaxi[5])/tantc;
- zia = zi[5]+rc*costc;
- rminia = rmini[5];
- rmaxia = Rinmax;
- zi[3] = zia-dzin;
- zi[2] = zi[3] -rc*costc;
- rmini[2] = -tantc*(zi[2]-za[3])+rmina[3];
- rmaxi[2] = -tantc*(zi[2]-za[4])+rmaxa[4];
- rmini[3] = rmini[2] -rc*costc;
- zi[4] = zi[3];
- rmini[4] = Rinmin;
- rmaxi[4] = -tantc*(zi[4]-za[4])+rmaxa[4];
- rmaxi[3] = rmaxi[4];
- zi[6] = zcylinder;
- rmini[6] = Rinmin;
- rmaxi[6] = rmaxi[5] - (zi[5]-zi[6])*(rmaxi[5]-rmaxa)/(zi[5]-zia);
- zi[7] = zi[6];
- rmini[7] = Rincylinder;
- rmaxi[7] = rmaxi[6];
- rmini[8] = Rincylinder;
- rmaxi[8] = Rini[8];
- zi[8] = zi[5]+(rmaxi[8]-rmaxi[5])*(zia-zi[5])/(rmaxa-rmaxi[5]);
- PolyCone("SCI","SSD lower/inner right part of SSD cone",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDcf);
- Pos("SCI",1,mother,0.0,.0,0.0,0);
- // Now for Inserto volume at the inner most radius.
- phi0 = 0.0;
- dphi = 360.0;
- nz = 7;
- Double_t *zk = new Double_t[nz];
- Double_t *rmink = new Double_t[nz];
- Double_t *rmaxk = new Double_t[nz];
- zk[1] = zi[3]+ct;
- zk[0] = zk[1]-(rc+ct)*costc;
- rmink[0] = rmini[3]+(rc+ct)*sintc;
- rmaxk[0] = rmink[0];
- rmink[1] = rmini[3];
- zk[2] = zk[1];
- rmink[2] = rmini[6];
- rmaxk[2] = rmaxk[1];
- zk[3] = zk[0]+(th+2.0*ct)*costc;
- rmink[3] = rmini[6];
- rmaxk[3] = rmaxk[0]+(th+2.0*ct)*sintc;
- rmaxk[1] = rmaxk[0]+(rmaxk[3]-rmaxk[0])*(zk[1]-zk[0])/(zk[3]-zk[0]);
- rmink[4] = rmini[6];
- rmaxk[4] = rmaxi[5]-ct*sintc;
- zk[4] = zc[1]+(zc3[3]-zc[1])*(rmaxk[4]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
- zk[5] = zi[5]-rc*costc-ct;
- rmink[5] = rmini[6];
- rmaxk[5] = rmini[8];
- zk[6] = zi[6];
- rmink[6] = rmini[6];
- rmaxk[6] = rmaxi[6];
- PolyCone("SCK","SSD inner most inserto material",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfs);
- Pos("SCK",1,"SCI",0.0,.0,0.0,0);
- // Now for foam core at the inner most radius.
- phi0 = 0.0;
- dphi = 360.0;
- nz = 4;
- Double_t *zj = new Double_t[nz];
- Double_t *rminj = new Double_t[nz];
- Double_t *rmaxj = new Double_t[nz];
- rminj[0] = rmini[0]-ct;
- zj[0] = zc[0]+(zc[2]-zc[0])*(rminj[0]-rminc[0])/(rminc[2]-rminc[0]);
- rmaxj[0] = rminj[0];
- rmaxj[1] = rmaxj[0];
- zj[1] = zc[1]+(zc[3]-zc[1])*(rmaxj[1]-rmaxc[1])/(rmaxc[3]-rmaxc[1]);
- rminj[1] = rminc[0]+(rminc[2]-rminc[0])*(zj[1]-zc[0])/(zc[2]-zc[0]);
- zj[2] = zk[0];
- rminj[2] = rkmin[0];
- rmaxj[2] = rmaxc[1]+(rmaxc[3]-rmaxc[1])*(zj[2]-zc[1])/(zc[3]-zc[1]);
- zj[3] = zk[3];
- rminj[3] = rmaxk[3];
- rmaxj[3] = rminj[3];
- PolyCone("SCJ","SSD inner most foam core",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfo);
- Pos("SCJ",1,"SCI",0.0,.0,0.0,0);
- // Now for foam core at the top of the inner most radius where
- // the spoaks are.
- t = ct/(0.5*(Rholemax+Rholemin));// It is not posible to get the
- // carbon fiber thickness uniform in this phi direction. We can only
- // make it a fixed angular thickness.
- t *= 180.0/TMath::Pi();
- dphi = 5.0 - 2.0*t; // degrees
- phi0 = 12.5+t; // degrees see drawing ALR-0767.
- nz = 4;
- Double_t *zl = new Double_t[nz];
- Double_t *rminl = new Double_t[nz];
- Double_t *rmaxl = new Double_t[nz];
- zl[0] = zh[2];
- rminl[0] = rmini[0];
- rmaxl[0] = rminl[0];
- zl[1] = zj[0];
- rminl[1] = rminj[1];
- rmaxl[1] = rmaxi[0];
- zl[2] = zh[3];
- rminl[2] = rminl[1];
- rmaxl[2] = rmaxl[1];
- zl[3] = zj[1];
- rminl[3] = rminl[2];
- rmaxl[3] = rminl[3];
- PolyCone("SCL","SSD inner most foam core",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfo);
- Pos("SCL",1,"SCI",0.0,.0,0.0,0);
- for(i=1;i<nspoaks;i++){
- Pos("SCG",i+1,"SCA",0.0,.0,0.0,irot+i);
- } // end for i
- // Now for the SSD mounting posts
- dphi = 180.0*dRPost/(RPostmin+0.5*dRPost)/TMath::Pi(); // degrees
- phi0 = phi0post; //
- nz = 3;
- Double_t *zo = new Double_t[nz];
- Double_t *rmino = new Double_t[nz];
- Double_t *rmaxo = new Double_t[nz];
- rmino[0] = RPostmin+dRPost;
- rmaxo[0] = rmino[0];
- zo[0] = za[4]+(rmaxa[4]-Rmaxo[0])/tantc;
- rmino[1] = RPostmin;
- zo[1] = za[4]+(rmaxa[4]-Rmino[1])/tantc;
- rmaxo[1] = rmaxo[0];
- zo[2] = z0+zpostmax;
- rmino[2] = RPostmin;
- rmaxo[2] = rmin0[2]+dRPost;
- PolyCone("SCO","SSD mounting post, carbon fiber",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDcf);
- Pos("SCO",1,mother,0.0,.0,0.0,0);
- for(i=1;i<nposts;i++){
- Zmatrix(irot+i,360./((Double_t)nposts));
- Pos("SCO",i+1,mother,0.0,.0,0.0,irot+i);
- } // end for i
- // Now for the SSD mounting posts
- t = 180.0*ct/(RPostmin+0.5*dRPost)/TMath::Pi();
- dphi = dphi-2.0*t; // degrees
- phi0 = phi0+t; //
- nz = 3;
- Double_t *zp = new Double_t[nz];
- Double_t *rminp = new Double_t[nz];
- Double_t *rmaxp = new Double_t[nz];
- rminp[0] = rmino[0]-ct;
- rmaxp[0] = rminp[0];
- zp[0] = za[4]+(rmaxa[4]-Rmaxp[0])/tantc;
- rminp[1] = rmino[0]+ct;
- rmaxp[1] = rmino[0]-ct;
- zp[1] = za[4]+(rmaxa[4]-Rminp[1])/tantc;
- rminp[2] = rminp[1];
- rmaxp[2] = rmaxp[1];
- zp[2] = z0-zpostmax;
- PolyCone("SCP","SSD mounting post, Inserto",
- phi0,dphi,nz,*zc,*rminc,*rmaxc,SSDfs);
- Pos("SCP",1,"SCO",0.0,.0,0.0,0);
- // This insrto continues into the SSD cone displacing the foam
- // and the carbon fiber surface at those points where the posts are.
- nz = 4;
- Double_t *zm = new Double_t[nz];
- Double_t *rminm = new Double_t[nz];
- Double_t *rmaxm = new Double_t[nz];
- Double_t *zn = new Double_t[nz];
- Double_t *rminn = new Double_t[nz];
- Double_t *rmaxn = new Double_t[nz];
- rminm[0] = RPostmin+dRPost-ct;
- rmaxm[0] = rminm[0];
- zm[0] = zj[0]+(zj[2]-zj[0])*(rminm[0]-rminj[0])/(rminj[2]-rminj[0]);
- rmaxm[1] = rmaxm[0];
- zm[1] = zj[1]+(zj[3]-zj[1])*(rmaxm[1]-rmaxj[1])/(rmaxj[3]-rmaxj[1]);
- rminm[2] = RPostmin+ct;
- zm[2] = zj[0]+(zj[2]-zj[0])*(rminm[2]-rminj[0])/(rminj[2]-rminm[0]);
- rmaxm[2] = rjmax[1]+(rjmax[3]-rmnax[1])*(zm[2]-zj[1])/(zj[3]-zj[1]);
- rminm[3] = rminm[2];
- rmaxm[3] = rminm[3];
- zn[0] = zm[1];
- rminn[0] = rmaxm[1];
- rmaxn[0] = rminn[0];
- rmaxn[1] = rmaxn[0];
- zn[1] = za4+(rmaxa[4]-rmaxn[1])/tantc;
- rminn[1] = rmaxj[1]+(rmaxj[3]-rmaxj[1])*(zn[1]-zj[1])/(zj[3]-zj[1]);
- zn[2] = zm[3];
- rminn[2] = rminm[3];
- rmaxn[2] = -tantc*(zn[2]-za[4])+rmaxa[4];
- rminn[3] = rminn[2];
- rmaxn[3] = rminn[3];
- zn]3] = za[4]+(rmaxa[4]-rmaxn[3])/tantc;
- Pos("SCM",1,"SCJ",0.0,.0,0.0,0);
- Pos("SCN",1,"SCI",0.0,.0,0.0,0);
- for(i=1;i<nposts;i++){
- Pos("SCN",i+1,"SCJ",0.0,.0,0.0,irot+i);
- Pos("SCM",i+1,"SCI",0.0,.0,0.0,irot+i);
- } // end for i
- //
- //==============================================================
- delete[] za;delete[] rmina;delete[] rmaxa;
- delete[] zb;delete[] rminb;delete[] rmaxb;
- delete[] zc;delete[] rminc;delete[] rmaxc;
- delete[] zd;delete[] rmind;delete[] rmaxd;
- delete[] ze;delete[] rmine;delete[] rmaxe;
- delete[] zf;delete[] rminf;delete[] rmaxf;
- delete[] zg;delete[] rming;delete[] rmaxg;
- delete[] zh;delete[] rminh;delete[] rmaxh;
- delete[] zi;delete[] rmini;delete[] rmaxi;
- delete[] zj;delete[] rminj;delete[] rmaxj;
- // Set back to cm default scale before exiting.
- SetScalecm();
- return;
-}
-//______________________________________________________________________
-void AliITSv11::CreateGeometry(){
- ////////////////////////////////////////////////////////////////////////
- // This routine defines and Creates the geometry for version 11 of the ITS.
- ////////////////////////////////////////////////////////////////////////
-}
-//______________________________________________________________________
-void AliITSv11::CreateMaterials(){
-////////////////////////////////////////////////////////////////////////
- //
- // Create ITS materials
- // This function defines the default materials used in the Geant
- // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
- // AliITSv11.
- // In general it is automatically replaced by
- // the CreatMaterials routine defined in AliITSv?. Should the function
- // CreateMaterials not exist for the geometry version you are using this
- // one is used. See the definition found in AliITSv5 or the other routine
- // for a complete definition.
- //
+ if(fc==0) fc = new AliITSGeometrySSDCone(new TVector3(0.0,0.0,0.0),"TSV",0);
+
+ fc->CreateG3Materials();
}
//______________________________________________________________________
void AliITSv11::InitAliITSgeom(){
- // Based on the geometry tree defined in Geant 3.21, this
+ // Based on the geometry tree defined in Geant 3.21, this
// routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
// sturture.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return
+ // none.
}
-
//______________________________________________________________________
void AliITSv11::Init(){
- ////////////////////////////////////////////////////////////////////////
- // Initialise the ITS after it has been created.
- ////////////////////////////////////////////////////////////////////////
+ // Initialise the ITS after it has been created.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return
+ // none.
}
//______________________________________________________________________
void AliITSv11::SetDefaults(){
// sets the default segmentation, response, digit and raw cluster classes
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return
+ // none.
}
//______________________________________________________________________
void AliITSv11::DrawModule(){
- ////////////////////////////////////////////////////////////////////////
- // Draw a shaded view of the FMD version 11.
- ////////////////////////////////////////////////////////////////////////
+ // Draw a shaded view of the ITS version 11.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return
+ // none.
}
//______________________________________________________________________
void AliITSv11::StepManager(){
- ////////////////////////////////////////////////////////////////////////
- // Called for every step in the ITS, then calles the AliITShit class
+ // Called for every step in the ITS, then calles the AliITShit class
// creator with the information to be recoreded about that hit.
- // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
+ // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
// printing of information to a file which can be used to create a .det
// file read in by the routine CreateGeometry(). If set to 0 or any other
// value except 1, the default behavior, then no such file is created nor
// it the extra variables and the like used in the printing allocated.
- ////////////////////////////////////////////////////////////////////////
}
/////////////////////////////////////////////////////////////////////////
#include "AliITS.h"
+class AliITSGeometrySSDCone;
class AliITSv11 : public AliITS {
private:
void InitAliITSgeom();
- void SetScalecm(){// Sets scale factor for centemeters
- fScale = 1.0;}
- void SetScalemm(){// Sets scale factor for milimeters
- fScale = 0.10;}
- void SetScalemicrons(){// Sets scale factor for micronsmeters
- fScale = 1.0E-04;}
- void SetScale(Double_t s=1.0){// Sets scale factor
- fScale = s;}
- Double_t GetScale(){// Returns the scale factor
- return fScale;}
- Bool_t IsScalecm(){// Returens kTRUE if scale factor is set of [cm]
- if(fScale==1.0) return kTRUE; return kFALSE;}
- // Create a Box
- void Box(const char gnam[3],const TString &dis,
- Double_t dx,Double_t dy,Double_t dz,Int_t med);
- // Greate A Trapizoid with the x dimension varing along z.
- void Trapezoid1(const char gnam[3],const TString &dis,Double_t dxn,
- Double_t dxp,Double_t dy,Double_t dz,Int_t med);
- // Greate A Trapizoid with the x and y dimension varing along z.
- void Trapezoid2(const char gnam[3],const TString &dis,Double_t dxn,
- Double_t dxp,Double_t dyn,Double_t dyp,Double_t dz,
- Int_t med);
- // General trapazoid.
- void Trapezoid(const char gnam[3],const TString &dis,Double_t dz,
- Double_t thet,Double_t phi,Double_t h1,Double_t bl1,
- Double_t tl1,Double_t alp1,Double_t h2,Double_t bl2,
- Double_t tl2,Double_t alp2,Int_t med);
- // Simple Tube.
- void Tube(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t dz,Int_t med);
- // Tube segment.
- void TubeSegment(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t dz,Double_t phi1,Double_t phi2,
- Int_t med);
- // Simple Cone.
- void Cone(const char gnam[3],const TString &dis,Double_t dz,Double_t rmin1,
- Double_t rmax1,Double_t rmin2,Double_t rmax2,Int_t med);
- // Segment of a Cone.
- void ConeSegment(const char gnam[3],const TString &dis,Double_t dz,
- Double_t rmin1,Double_t rmax1,Double_t rmin2,
- Double_t rmax2,Double_t phi1,Double_t phi2,Int_t med);
- // Spherical shell segment.
- void Sphere(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t the1,Double_t the2,Double_t phi1,
- Double_t phi2,Int_t med);
- // Parallelepiped.
- void Parallelepiped(const char gnam[3],const TString &dis,Double_t dx,
- Double_t dy,Double_t dz,Double_t alph,Double_t thet,
- Double_t phi,Int_t med);
- // Polygon.
- void Polygon(const char gnam[3],const TString &dis,Double_t phi1,
- Double_t dphi,Int_t npdv,Int_t nz,Double_t *z,Double_t *rmin,
- Double_t *rmax,Int_t med);
- //Poly-Cone
- void PolyCone(const char gnam[3],const TString &dis,Double_t phi1,
- Double_t dphi,Int_t nz,Double_t *z,Double_t *rmin,
- Double_t *rmax,Int_t med);
- // Ellliptical cross-sectino tube
- void TubeElliptical(const char gnam[3],const TString &dis,Double_t p1,
- Double_t p2,Double_t dz,Int_t med);
- // Hyperbolic tube
- void TubeElliptical(const char gnam[3],const TString &dis,Double_t p1,
- Double_t p2,Double_t dz,Int_t med);
- // Twisted genral trapezoid.
- void TwistedTrapezoid(const char gnam[3],const TString &dis,Double_t dz,
- Double_t thet,Double_t phi,Double_t twist,
- Double_t h1,Double_t bl1,Double_t tl1,
- Double_t apl1,Double_t h2,Double_t bl2,
- Double_t tl2,Double_t apl2,Int_t med);
- // Cut tube.
- void CutTube(const char gnam[3],const TString &dis,Double_t rmin,
- Double_t rmax,Double_t dz,Double_t phi1,Double_t phi2,
- Double_t lx,Double_t ly,Double_t lz,Double_t hx,Double_t hy,
- Double_t hz,Int_t med);
- // Position one volume inside another
- void Pos(const char vol[3],Int_t cn,const char moth[3],Double_t x,
- Double_t y,Double_t z,Int_t irot);
- void SetMedArray(){// Sets up the array of media
- fidmed = fIdtmed->GetArray()-199;}
- // Define rotation matrix
- void Matrix(Int_t irot,Double_t thet1,Double_t phi1,Double_t thet2,
- Double_t phi2,Double_t thet3,Double_t phi3);
- // Defube ritatuib matrix
- void Matrix(Int_t irot,Double_t rot[3][3]);
- // Rotation matrix about axis i (i=0=>x, i=1=>y, i=2=>z).
- void Matrix(Int_t irot,Int_t axis,Double_t thet);
- // Rotation matrix about x axis
- void XMatrix(Int_t irot,Double_t thet){
- Matrix(irot,0,thet);}
- // Rotation matrix about y axis
- void YMatrix(Int_t irot,Double_t thet){
- Matrix(irot,1,thet);}
- // Rotation matrix about z axis
- void ZMatrix(Int_t irot,Double_t thet){
- Matrix(irot,2,thet);}
- // Define Element material and medium
- void Element(Int_t imat,const char *name,Int_t z,Double_t dens,Int_t istd);
- // Define Material by constituant weights
- void MixtureByWeight(Int_t imat,const char *name,Int_t *z,Doule_t *w,
- Double_t dens,Int_t nelments,Int_t istd);
- // Define Material by constituant relative number
- void MixtureByNumber(Int_t imat,const char *name,Int_t *z,Imt_t *i,
- Double_t dens,Int_t nelments,Int_t istd);
- // Returns standard radiation lenghts of elements.
- Float_t GetRadLength(Int_t z);
- // Returns natrual abundance atomic mass numbers for a given element
- Float_t GetA(Int_t z);
- // Returns ITS standard Theata Max transport cut values
- Float_t GetStandardThetaMax(Int_t istd);
- // Returns ITS standard Theata Max transport cut values
- Float_t GetStandardMaxStepSize(Int_t istd);
- // Returns ITS standard Theata Max transport cut values
- Float_t GetStandardEfraction(Int_t istd);
- // Returns ITS standard Theata Max transport cut values
- Float_t GetStandardEpsilon(Int_t istd);
- // Degree Versions of TMath functions (as needed)
- Double_t Sind(Double_t t){return TMath::Sin(TMath::Pi()*t/180.);}
- Double_t Cosd(Double_t t){return TMath::Cos(TMath::Pi()*t/180.);}
- Double_t Tand(Double_t t){return TMath::Tan(TMath::Pi()*t/180.);}
- Double_t ASind(Double_t t){return 180.0*TMath::ASin(t)/TMath::Pi();}
- Double_t ACosd(Double_t t){return 180.0*TMath::ACos(t)/TMath::Pi();}
- Double_t ATand(Double_t t){return 180.0*TMath::ATan(t)/TMath::Pi();}
- Double_t ATand2(Double_t y,Double_t x){return 180.0*TMath::ATan2(y,x)/TMath::Pi();}
// TString fEuclidGeomtery,fEuclidMaterial defined in AliModule.
Bool_t fEuclidOut; // Flag to write geometry in euclid format
Float_t fChip1; // thickness of chip in SPD layer 1
Float_t fChip2; // thickness of chip in SPD layer 2
Int_t fRails; // flag to switch rails on (=1) and off (=0)
- Int_t fFluid; // flag to switch between water (=1) and freon (=0)
- Int_t fIDMother; //! ITS Mother Volume id.
- //
- Int_t *fidmed; //! array of media indexes.
- Int_t *fidrot; //! array of rotation matrixies indexes.
- Double_t fScale; //! scale factor (=1=>[cm])
+ Int_t fFluid; // flag to switch between water(=1) and freon(=0)
+ AliITSGeometrySSDCone *fc;//! ITS SSD Cone geometry. ONLY THING DEFINED.
ClassDef(AliITSv11,1) //Hits manager for set:ITS version 11
// PPR detailed Geometry asymmetric
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff