added low and high flux parameters to the array
[u/mrichter/AliRoot.git] / FMD / AliFMDv0.cxx
index 2825c85..d931b83 100644 (file)
  * about the suitability of this software for any purpose. It is          *
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
- /////////////////////////////////////////////////////////////////////
-//                                                                 //
-// Forward Multiplicity detector based on Silicon version 0        //
-//
-//Begin Html       
-/*
-<img src="gif/AliFMDv0Class.gif">
+/* $Id$ */
+/** @file    AliFMDv0.cxx
+    @author  Christian Holm Christensen <cholm@nbi.dk>
+    @date    Mon Mar 27 12:48:51 2006
+    @brief   Concrete implementation of FMD detector driver - coarse
+    version 
 */
-//End Html
-//                                                                  //
-//                                                                  //
-//////////////////////////////////////////////////////////////////////
-
-#include <TMath.h>
-#include <TGeometry.h>
-#include <TTUBE.h>
-#include <TNode.h>
-#include <TLorentzVector.h>
-#include "AliFMDv0.h"
-#include "AliRun.h"
-#include "AliMC.h"
-#include <iostream.h>
-#include <fstream.h>
-//#include <AliRandom.h>
-#include "AliMagF.h"
-#include "AliFMDhit.h"
-#include <stdlib.h>
-
-//class TGeant3;
-ClassImp(AliFMDv0)
-
-//--------------------------------------------------------------------
-AliFMDv0::AliFMDv0(const char *name, const char *title):
- AliFMD(name,title)
-{
-  //
-  // Standart constructor for Forward Multiplicity Detector version 0
-  //
-  fIdSens1=0;
-//  setBufferSize(128000);
-}
-//-------------------------------------------------------------------------
-void AliFMDv0::CreateGeometry()
-{
- //
-  // Create the geometry of Forward Multiplicity Detector version 0
-  //
-  //Detector consists of 6 volumes: 
-  // 1st covered pseudorapidity interval from 3.3 to 2.0
-  // and placed on 65cm in Z-direction;
-  // 2nd - from 2.0 to 1.6 and Z=85 cm;
-  // 3d  - the same pseudorapidity interval as the 1st 
-  // but on the other side from the interaction point z=-65cm;
-  // 4th - simmetricaly with the 2nd : 
-  // pseudorapidity from 2.0 to 1.6, Z=-85cm   
-  // 5th - from 3.6 to 4.7, Z=-270cm
-  // 6th - from 4.5 to 5.5 , Z=-630cm.
-  // Each part has 400mkm Si (sensetive area, detector itself),
-  // 0.75cm of plastic simulated electronics material,
-  // Al support ring 2cm thickness and 1cm width placed on 
-  // the outer radius of each Si disk;
-  //    
-  // begin Html
-  /*
-   <img src="gif/AliFMDv0.gif">
-  */
-  //
-
-  Int_t *idtmed = fIdtmed->GetArray();
-   
-  Int_t ifmd;
-  Int_t idrotm[999];
-  Float_t zfmd,par[3];
-  char name[5];
-
-  Float_t rin[6], rout[6],zpos;
-  Float_t etain[6]= {3.3, 2.0, 3.3, 2.0, 4.7, 5.5};
-  Float_t etaout[6]={2.0, 1.6, 2.0, 1.6, 3.6, 4.5};
-  Float_t z[6]={64., 85., -64., -85., -270., -630};
-  Float_t zDet=0.04;
-  Float_t zElectronic=0.75;
-  Float_t zSupport=1.;
-  Float_t zFMD=3.;
-//-------------------------------------------------------------------
- //  FMD 
- //------------------------------------------------------------------
-
-  AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
-
-  gMC->Gsvolu("GFSI","TUBE", idtmed[1], par, 0);
-  gMC->Gsvolu("GEL ","TUBE", idtmed[4], par, 0);
-  gMC->Gsvolu("GSUP","TUBE", idtmed[2], par, 0);
-
-  for (ifmd =0; ifmd < 6; ifmd++){
-
-    sprintf(name,"FMD%d",ifmd);
-    if(fDebug) 
-      printf("%s: %s",ClassName(),name);
-    
-    zfmd=TMath::Abs(z[ifmd]);
-    if(fDebug) printf("zfmd %f z[ifmd] %f",zfmd,z[ifmd]);
-    AliFMD::Eta2Radius(etain[ifmd],zfmd,&rin[ifmd]);
-    AliFMD::Eta2Radius(etaout[ifmd],zfmd,&rout[ifmd]);
-    
-    par[0]=rin[ifmd]; // pipe size
-    par[1]=rout[ifmd];
-    par[2]=zFMD/2;
-    gMC->Gsvolu(name,"TUBE", idtmed[3], par, 3);
-    
-    if(fDebug) printf ("rin %f rout %f ZFMD %f\n",par[0],par[1],z[ifmd]);
-    if (z[ifmd] < 0){  
-      gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],0, "ONLY");}
-    else { 
-      gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");}
-  //Silicon detector
-    par[2]=zDet/2;
-    zpos=zFMD/2 -par[2];
-    gMC->Gsposp("GFSI",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-
-    //Plastic slice for electronics
-    par[2]=zElectronic/2;
-    zpos=zpos-zDet/2-par[2];
-    gMC->Gsposp("GEL ",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-
-   //Simple Al support
-   par[1]=rout[ifmd];
-   par[0]=rout[ifmd]-2;
-   par[2]=zSupport/2;
-   zpos=zpos-zElectronic/2-par[2];
-   gMC->Gsposp("GSUP",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-   
-
-  }  
-  //Silicon
-
-  
-    
-
-}    
-//------------------------------------------------------------------------
-void AliFMDv0::CreateMaterials()
-{
- Int_t isxfld   = gAlice->Field()->Integ();
- Float_t sxmgmx = gAlice->Field()->Max();
-
- // Plastic CH
- Float_t aPlastic[2]={1.01,12.01};
- Float_t zPlastic[2]={1,6};
- Float_t wPlastic[2]={1,1};
- Float_t denPlastic=1.03;
-   //
- //*** Definition Of avaible FMD materials ***
- AliMaterial(0, "Si chip$", 28.0855,14.,2.33,9.36,999);
- AliMaterial(1, "Al supprt$", 26.980,13.,2.70,8.9,999);
- AliMaterial(2, "FMD Air$", 14.61, 7.3, .001205, 30423.,999); 
- AliMixture( 5, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
-
-//**
- AliMedium(1, "Si chip$", 0, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(2, "Al support$", 1, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(3, "FMD air$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(4, "Plastic$", 5, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
-
-
-}
-//---------------------------------------------------------------------
-void AliFMDv0::DrawDetector()
-{
+//____________________________________________________________________
+//                                                                          
+// Forward Multiplicity Detector based on Silicon wafers. This class
+// contains the base procedures for the Forward Multiplicity detector
+// Detector consists of 3 sub-detectors FMD1, FMD2, and FMD3, each of
+// which has 1 or 2 rings of silicon sensors. 
+//                                                       
+// This contains the coarse version of the FMD - that is, the
+// simulation produces no hits in the FMD volumes. 
 //
-// Draw a shaded view of the Forward multiplicity detector version 0
+// See also the AliFMD class for a more detailed description of the
+// various components. 
 //
 
-AliMC* pMC = AliMC::GetMC();
+#include "AliFMDv0.h"          // ALIFMDV0_H
 
-//Set ALIC mother transparent
-pMC->Gsatt("ALIC","SEEN",0);
-//
-//Set volumes visible
-gMC->Gsatt("FMD0","SEEN",1);
-gMC->Gsatt("FMD1","SEEN",1);
-gMC->Gsatt("FMD2","SEEN",1);
-gMC->Gsatt("FMD3","SEEN",1);
-gMC->Gsatt("FMD4","SEEN",1);
-gMC->Gsatt("FMD5","SEEN",1);
+//____________________________________________________________________
+ClassImp(AliFMDv0)
+#if 0
+  ; // This is here to keep Emacs for indenting the next line
+#endif
 
+//___________________________________________________________________
 //
-gMC->Gdopt("hide","on");
-gMC->Gdopt("shad","on");
-gMC->SetClipBox(".");
-gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
-gMC->DefaultRange();
-gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
-gMC->Gdhead(1111,"Forward multiplicity detector");
-gMC->Gdopt("hide","off");
-}
-//-------------------------------------------------------------------
-void AliFMDv0::Init()
-{
-// Initialises version 0 of the Forward Multiplicity Detector
+// EOF
 //
-AliMC* gMC=AliMC::GetMC();
-AliFMD::Init();
-fIdSens1=gMC->VolId("GFSI");
-if(fDebug) printf("%s: *** FMD version 0 initialized ***\n",ClassName());
-}
-
-//-------------------------------------------------------------------
-
-void AliFMDv0::StepManager()
-{
-  //
-  // Called for every step in the Forward Multiplicity Detector
-  //
-  Int_t id,copy;
-  static Float_t hits[9];
-  static Int_t vol[1];
-  static Float_t de;
-  TLorentzVector pos;
-  TLorentzVector mom;
-
-
-  TClonesArray &lhits = *fHits;
-  AliMC* gMC=AliMC::GetMC();
-  if(!gMC->IsTrackAlive()) return; // particle has disappeared
-
-  Float_t charge = gMC->TrackCharge();
-  if(TMath::Abs(charge)<=0.) return; //take only charged particles
-
-  //  ((TGeant3*)gMC)->Gpcxyz();
-
-  id=gMC->CurrentVolID(copy);
-  
-// Check the sensetive volume
-   if(id==fIdSens1)
-     {
-       if(gMC->IsTrackEntering())
-        {
-          vol[0]=copy;
-          gMC->TrackPosition(pos);
-          hits[0]=pos[0];
-          hits[1]=pos[1];
-          hits[2]=pos[2];
-          
-          gMC->TrackMomentum(mom);
-          hits[3]=mom[0];
-          hits[4]=mom[1];
-          hits[5]=mom[2];
-
-          Int_t iPart= gMC->TrackPid();
-          Int_t partId=gMC->IdFromPDG(iPart);
-          hits[7]=partId;
-          hits[8]=1e9*gMC->TrackTime();
-          de=0.;
-        }
-       if(gMC->IsTrackInside()){
-          de=de+1000.*gMC->Edep();
-       }
-       
-       if(gMC->IsTrackExiting()
-         ||gMC->IsTrackDisappeared()||
-         gMC->IsTrackStop())
-        {
-            hits[6]=de+1000.*gMC->Edep();
-    new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
-        } // IsTrackExiting()
-     }
- }
-