ITS/AliITSvSDD03.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /*
  17  $Id$
  18 */
  19
  20 #include <Riostream.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <TMath.h>
  24 #include <TGeometry.h>
  25 #include <TNode.h>
  26 #include <TTUBE.h>
  27 #include <TTUBS.h>
  28 #include <TPCON.h>
  29 #include <TFile.h>    // only required for Tracking function?
  30 #include <TCanvas.h>
  31 #include <TObjArray.h>
  32 #include <TLorentzVector.h>
  33 #include <TObjString.h>
  34 #include <TClonesArray.h>
  35 #include <TBRIK.h>
  36 #include <TSystem.h>
  37 #include <TVirtualMC.h>
  38
  39 #include "AliMC.h"
  40 #include "AliRun.h"
  41 #include "AliMagF.h"
  42 #include "AliConst.h"
  43 #include "AliITSGeant3Geometry.h"
  44 #include "AliTrackReference.h"
  45 #include "AliITShit.h"
  46 #include "AliITS.h"
  47 #include "AliITSvSDD03.h"
  48 #include "AliITSgeom.h"
  49 #include "AliITSgeomSPD.h"
  50 #include "AliITSgeomSDD.h"
  51 #include "AliITSgeomSSD.h"
  52 #include "AliITSDetType.h"
  53 #include "AliITSresponseSPD.h"
  54 #include "AliITSresponseSDD.h"
  55 #include "AliITSresponseSSD.h"
  56 #include "AliITSsegmentationSPD.h"
  57 #include "AliITSsegmentationSDD.h"
  58 #include "AliITSsegmentationSSD.h"
  59 #include "AliITSsimulationSPD.h"
  60 #include "AliITSsimulationSDD.h"
  61 #include "AliITSsimulationSSD.h"
  62 #include "AliITSClusterFinderSPD.h"
  63 #include "AliITSClusterFinderSDD.h"
  64 #include "AliITSClusterFinderSSD.h"
  65
  66
  67 ClassImp(AliITSvSDD03)
  68
  69 //______________________________________________________________________
  70 AliITSvSDD03::AliITSvSDD03() {
  71     ////////////////////////////////////////////////////////////////////////
  72     // Standard default constructor for the ITS SDD test beam 2002 version 1.
  73     // Inputs:
  74     //    none.
  75     // Outputs:
  76     //    none.
  77     // Return:
  78     //    A default created class.
  79     ////////////////////////////////////////////////////////////////////////
  80     Int_t i;
  81
  82     fIdN          = 0;
  83     fIdName       = 0;
  84     fIdSens       = 0;
  85     fEuclidOut    = kFALSE; // Don't write Euclide file
  86     fGeomDetOut   = kFALSE; // Don't write .det file
  87     fGeomDetIn    = kFALSE; // Don't Read .det file
  88     fMajorVersion = IsVersion();
  89     fMinorVersion = -1;
  90     for(i=0;i<60;i++) fRead[i] = '\0';
  91     for(i=0;i<60;i++) fWrite[i] = '\0';
  92     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
  93 }
  94 //______________________________________________________________________
  95 AliITSvSDD03::AliITSvSDD03(const char *title,Int_t year) : AliITS("ITS", title){
  96     ////////////////////////////////////////////////////////////////////////
  97     //    Standard constructor for the ITS SDD testbeam 2002 version 1.
  98     // Inputs:
  99     //    const char *title    title for this ITS geometry.
 100     // Outputs:
 101     //    none.
 102     // Return:
 103     //    A standard created class.
 104     ////////////////////////////////////////////////////////////////////////
 105     Int_t i;
 106
 107     fIdN = 2;
 108     fIdName = new TString[fIdN];
 109     fIdName[0] = "IMBS";
 110     fIdName[1] = "ITST";
 111     fIdSens    = new Int_t[fIdN];
 112     for(i=0;i<fIdN;i++) fIdSens[i] = 0;
 113     fMajorVersion = IsVersion();
 114     fMinorVersion = 2;
 115     fEuclidOut    = kFALSE; // Don't write Euclide file
 116     fGeomDetOut   = kFALSE; // Don't write .det file
 117     fGeomDetIn    = kFALSE; // Don't Read .det file
 118     fYear         = year;
 119     SetThicknessDet1();
 120     SetThicknessDet2();
 121     SetThicknessChip1();
 122     SetThicknessChip2();
 123
 124     fEuclidGeometry="$ALICE_ROOT/ITS/ITSgeometry_vSDD032.euc";
 125     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_vSDD032.det",60);
 126     strncpy(fRead,fEuclidGeomDet,60);
 127     strncpy(fWrite,fEuclidGeomDet,60);
 128 }
 129 //______________________________________________________________________
 130 AliITSvSDD03::AliITSvSDD03(const AliITSvSDD03 &source) : AliITS(source){
 131     ////////////////////////////////////////////////////////////////////////
 132     //     Copy Constructor for ITS SDD test beam 2002 version 1.
 133     // This class is not to be copied. Function only dummy.
 134     // Inputs:
 135     //    const AliITSvSDD03 &source   The class to be copied
 136     // Outputs:
 137     //    none.
 138     // Return:
 139     //    A warning message.
 140     ////////////////////////////////////////////////////////////////////////
 141     if(&source == this) return;
 142     Warning("Copy Constructor","Not allowed to copy AliITSvSDD03");
 143     return;
 144 }
 145 //______________________________________________________________________
 146 AliITSvSDD03& AliITSvSDD03::operator=(const AliITSvSDD03 &source){
 147     ////////////////////////////////////////////////////////////////////////
 148     //    Assignment operator for the ITS SDD test beam 2002 version 1.
 149     // This class is not to be copied. Function only dummy.
 150     // Inputs:
 151     //    const AliITSvSDD03 &source   The class to be copied
 152     // Outputs:
 153     //    none.
 154     // Return:
 155     //    A Warning message
 156     ////////////////////////////////////////////////////////////////////////
 157     if(&source == this) return *this;
 158     Warning("= operator","Not allowed to copy AliITSvSDD03");
 159     return *this;
 160 }
 161 //______________________________________________________________________
 162 AliITSvSDD03::~AliITSvSDD03() {
 163     ////////////////////////////////////////////////////////////////////////
 164     //    Standard destructor for the ITS SDD test beam 2002 version 1.
 165     // Inputs:
 166     //    none.
 167     // Outputs:
 168     //    none.
 169     // Return:
 170     //    none.
 171     ////////////////////////////////////////////////////////////////////////
 172 }
 173 //______________________________________________________________________
 174 void AliITSvSDD03::BuildGeometry(){
 175     ////////////////////////////////////////////////////////////////////////
 176     //    Geometry builder for the ITS SDD test beam 2002 version 1.
 177     //    ALIC    ALICE Mother Volume
 178     //     |- ITSV     ITS Mother Volume
 179     //         |- IDET       Detector under Test
 180     //         |   |- ITS0       SDD Si Chip
 181     //         |   |  |- ITST      SDD Sensitivve Volume
 182     //         |   |- IPC0 *5    Readout chip
 183     //         |- ITEL *4    SDD Telescope
 184     //             |- IMB0       SDD Si Chip
 185     //             |   |- IMBS     SDD Sensitive volume
 186     //             |- ICMB       Chip MiniBus.
 187     // Inputs:
 188     //    none.
 189     // Outputs:
 190     //    none.
 191     // Return:
 192     //    none.
 193     ////////////////////////////////////////////////////////////////////////
 194     // Get the top alice volume.
 195     TNode *ALIC = gAlice->GetGeometry()->GetNode("alice");
 196     ALIC->cd();
 197
 198     // Define ITS Mother Volume
 199     Float_t data[3];
 200     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 201     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 202     //Float_t yposition= 0.0;
 203     TRotMatrix *r0 = new TRotMatrix("ITSidrotm0","ITSidrotm0",
 204                                     90.0,0,0.0,0,90.0,270.0);
 205     data[0] = 10.0;
 206     data[1] = 50.0;
 207     data[2] = 100.0;
 208     TBRIK *ITSVshape = new TBRIK("ITSVshape","ITS Logical Mother Volume","Air",
 209                                  data[0],data[1],data[2]);
 210     TNode *ITSV = new TNode("ITSV","ITS Mother Volume",ITSVshape,
 211                             0.0,0.0,0.0,0,0);
 212     ITSV->cd(); // set ourselve into ITSV subvolume of ALIC
 213
 214     // SDD part of telescope (MiniBuS)
 215     data[0] = 0.705;
 216     data[1] = 0.5*ddettelescope;
 217     data[2] = 3.536;
 218     TBRIK *IMB0shape = new TBRIK("IMB0shape","SDD wafer","Si",
 219                                  data[0],data[1],data[2]);
 220     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 221     data[0] = detMiniBusX = 0.64;
 222     data[1] = detMiniBusY = 0.5*ddettelescope;
 223     data[2] = detMiniBusZ = 3.48;
 224     TBRIK *IMBSshape = new TBRIK("IMBSshape","SDD Sensitive volume","Si",
 225                                  data[0],data[1],data[2]);
 226     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 227     data[0] = chipMiniBusX = 0.793;
 228     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 229     data[2] = chipMiniBusZ = 0.68;
 230     TBRIK *ICMBshape = new TBRIK("ICMBshape","chip Minibus","Si",
 231                                  data[0],data[1],data[2]);
 232     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 233     data[1] = detMiniBusY+chipMiniBusY;
 234     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 235     TBRIK *ITELshape = new TBRIK("ITELshape","ITELshape","Air",
 236                                  data[0],data[1],data[2]);
 237
 238     // SDD under test
 239     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 240     data[0] = 0.705;
 241     data[1] = ddettest;
 242     data[2] = 3.536;
 243     TBRIK *ITS0shape = new TBRIK("ITS0shape","SDD wafer","Si",
 244                                  data[0],data[1],data[2]); // contains detector
 245     data[0] = spdX = 0.64;
 246     data[1] = spdY = ddettest;
 247     data[2] = spdZ = 3.48;
 248     TBRIK *ITSTshape = new TBRIK("ITSTshape","SDD sensitive volume","Si",
 249                                  data[0],data[1],data[2]);
 250     // ITS0 with no translation and unit rotation matrix.
 251     data[0] = spdchipX = 0.793;
 252     data[1] = spdchipY = dchiptest;
 253     data[2] = spdchipZ = 0.68;
 254     TBRIK *IPC0shape = new TBRIK("IPC0shape","Readout Chips","Si",
 255                                  data[0],data[1],data[2]); // chip under test
 256     data[0] = TMath::Max(spdchipX,spdX);
 257     data[1] = spdY+spdchipY;
 258     data[2] = TMath::Max(spdchipZ,spdZ);
 259     TBRIK *IDETshape = new TBRIK("IDETshape","Detector Under Test","Air",
 260                                  data[0],data[1],data[2]);
 261     // Place volumes in geometry
 262     Int_t i,j;
 263     char name[20],title[50];
 264     Double_t px=0.0,py=0.0,pz[4]={-38.0,0.0,0.0,0.0};
 265     pz[1] = pz[0]+2.0;
 266     pz[2] = pz[1]+38.0+spdY+spdchipY+34.5;
 267     pz[3] = pz[2]+2.0;
 268     TNode *ITEL[4],*ICMB[4],*IMB0[4],*IMBS[4];
 269     TNode *IDET = new TNode("IDET","Detector Under Test",IDETshape,
 270                             0.0,0.0,pz[1]+38.0,r0,0);
 271     IDET->cd();
 272     TNode *ITS0 = new TNode("ITS0","SDD Chip",ITS0shape,
 273                             0.0,IDETshape->GetDy()-spdY,0.0,0,0);
 274     TNode *IPC0[5];
 275     for(i=0;i<5;i++) { //place readout chips on the back of SDD chip under test
 276         sprintf(name,"IPC0%d",i);
 277         sprintf(title,"Readout chip #%d",i+1);
 278         j = i-2;
 279         IPC0[i] = new TNode(name,title,IPC0shape,
 280                             0.0,spdchipY-IDETshape->GetDy(),
 281                             j*2.0*spdchipZ+j*0.25*(spdZ-5.*spdchipZ),0,0);
 282     } // end for i
 283     ITS0->cd();
 284     TNode *ITST = new TNode("ITST","SDD sensitive volume",ITSTshape,
 285                             0.0,0.0,0.0,0,0);
 286     for(Int_t i=0;i<4;i++){
 287         ITSV->cd();
 288         sprintf(name,"ITEL%d",i);
 289         sprintf(title,"Test beam telescope element #%d",i+1);
 290         ITEL[i] = new TNode(name,title,ITELshape,px,py,pz[i],r0,0);
 291         ITEL[i]->cd();
 292         ICMB[i] = new TNode("ICMB","Chip MiniBus",ICMBshape,
 293                             0.0,-ITELshape->GetDy()+detMiniBusY,0.0,0,0);
 294         IMB0[i] = new TNode("IMB0","Chip MiniBus",IMB0shape,
 295                             0.0, ITELshape->GetDy()-detMiniBusY,0.0,0,0);
 296         IMB0[i]->cd();
 297         IMBS[i] = new TNode("IMBS","IMBS",IMBSshape,0.0,0.0,0.0,0,0);
 298         // place IMBS inside IMB0 with no translation and unit rotation matrix.
 299     } // end for i
 300     ALIC->cd();
 301     ITST->SetLineColor(kYellow);
 302     fNodes->Add(ITST);
 303     for(i=0;i<4;i++){
 304         IMBS[i]->SetLineColor(kGreen);
 305         fNodes->Add(IMBS[i]);
 306     } // end for i
 307 }
 308 //______________________________________________________________________
 309 void AliITSvSDD03::CreateGeometry(){
 310     ////////////////////////////////////////////////////////////////////////
 311     //  This routine defines and Creates the geometry for version 1 of the ITS.
 312     //    ALIC    ALICE Mother Volume
 313     //     |- ITSV     ITS Mother Volume
 314     //         |- IDET       Detector under Test (box containing SDD)
 315     //         |   |-IDAI        Air inside box
 316     //         |       |- ITS0       SDD Si Chip
 317     //         |          |- ITST      SDD Sensitivve Volume
 318     //         |- ITEL *10   SSD Telescope (plastic box containting SSD's)
 319     //         |   |- ITAI       Air inside box
 320     //         |       |- IMB0       SDD Si Chip
 321     //         |           |- IMBS     SDD Sensitive volume
 322     //         |-ISNT*4    Sintilator triggers
 323     // Inputs:
 324     //    none.
 325     // Outputs:
 326     //    none.
 327     // Return:
 328     //    none.
 329     ////////////////////////////////////////////////////////////////////////
 330     Float_t data[49];
 331     // Define media off-set
 332     Int_t *idtmed = fIdtmed->GetArray()+1; // array of media indexes
 333     Int_t idrotm[4]; // Array of rotation matrix indexes
 334     //Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 335     //Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 336     //Float_t yposition= 0.0;
 337     const Float_t kmm=0.1,kcm=1.0,kmicm=0.001;
 338
 339     // Define Rotation-reflextion Matrixes needed
 340     // 0 is the unit matrix
 341     AliMatrix(idrotm[0], 90.0,0.0, 0.0,0.0, 90.0,270.0); // SDD and SSD X
 342     AliMatrix(idrotm[1], 90.0,0.0, 0.0,0.0, 90.0,270.0); // SSD Y
 343     data[0] = 100.0*kmm;
 344     data[1] = 100.0*kmm;
 345     data[2] = 800.0*kmm;
 346     gMC->Gsvolu("ITSV","BOX ",idtmed[0],data,3);
 347     gMC->Gspos("ITSV",1,"ALIC",0.0,0.0,0.0,0,"ONLY");
 348
 349     //cout << "idtmed[0]=" << idtmed[0]<<endl;
 350     //cout << "idtmed[1]=" << idtmed[1]<<endl;
 351     // Crossed sintilator triggers (2 in front 2 in back)
 352     AliMatrix(idrotm[2],90.0,0.0,90.0,90.0,90.0,0.0);//Rotate about Z 90 degree
 353     data[0] = 10.0*kcm;
 354     data[1] = 2.0*kcm;
 355     data[2] = 2.0*kmm;
 356     gMC->Gsvolu("ISNT","BOX ",idtmed[3],data,3);
 357     gMC->Gspos("ISNT",1,"ITSV",0.0,0.0,800.0*kmm+data[2],0,"ONLY");
 358     gMC->Gspos("ISNT",2,"ITSV",0.0,0.0,800.0*kmm,idrotm[2],"ONLY");
 359     gMC->Gspos("ISNT",3,"ITSV",0.0,0.0,-800.0*kmm,0,"ONLY");
 360     gMC->Gspos("ISNT",4,"ITSV",0.0,0.0,-800.0*kmm-data[2],idrotm[2],"ONLY");
 361     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 362     // SSD part of telescope (MiniBuS)
 363     data[0] = detMiniBusX = 10600.0*kmicm;
 364     data[1] = detMiniBusY = 0.0150*kcm;
 365     data[2] = detMiniBusZ = 1.1*kcm;
 366     gMC->Gsvolu("IMB0", "BOX ", idtmed[1], data, 3);   // contains detector
 367     data[0] = 0.5*384*50*kmicm;
 368     data[1] = 0.1499*kcm;
 369     data[2] = 1.0*kcm;
 370     gMC->Gsvolu("IMBS","BOX ",idtmed[1],data,3); // sensitive detecor volulme
 371     gMC->Gspos("IMBS",1,"IMB0",0.0,0.0,0.0,0,"ONLY"); // place IMBS inside
 372     // Box containing SSD's
 373     data[0] = 4.0*kcm;
 374     data[1] = 0.500*kcm;
 375     data[2] = 5.0*kcm;
 376     gMC->Gsvolu("ITAI","BOX ",idtmed[0],data,3);
 377     // Plastic box size = insize + thickness.
 378     data[0] = data[0] + 2.0*kmm;
 379     data[1] = data[1] + 200.0*kmicm;
 380     data[2] = data[2] + 2.0*kmm;
 381     gMC->Gsvolu("ITEL","BOX ",idtmed[4],data,3);
 382     gMC->Gspos("ITAI",1,"ITEL",0.0,0.0,0.0,0,"ONLY");
 383     gMC->Gspos("IMB0",1,"ITAI",0.0,data[1]-detMiniBusY,0.0,0,"ONLY");
 384
 385     // SDD under test
 386     Float_t sddX,sddY,sddZ;
 387     data[0] = sddX = 3.62500*kcm;
 388     data[1] = sddY = 0.01500*kcm;
 389     data[2] = sddZ = 4.37940*kcm;
 390     gMC->Gsvolu("ITS0", "BOX ", idtmed[1], data, 3);   // contains detector
 391     data[0] = 3.50860*kcm;
 392     data[1] = 0.01499*kcm;
 393     data[2] = 3.76320*kcm;
 394     gMC->Gsvolu("ITST","BOX ",idtmed[1],data,3);// sensitive detecor volume
 395     gMC->Gspos("ITST",1,"ITS0",0.0,0.0,0.0,0,"ONLY"); // place ITST inside
 396     // Box containing SDD under test
 397     data[0] = 4.0*kcm;
 398     data[1] = 0.5*kcm;
 399     data[2] = 5.0*kcm;
 400     gMC->Gsvolu("IDAI","BOX ",idtmed[0],data,3);
 401     data[0] = data[0] + 2.0*kmm;
 402     data[1] = data[1] + 200.0*kmicm;
 403     data[2] = data[2] = 2.0*kmm;
 404     gMC->Gsvolu("IDET","BOX ",idtmed[0],data,3);
 405     gMC->Gspos("IDAI",1,"IDET",0.0,0.0,0.0,0,"ONLY");
 406     gMC->Gspos("ITS0",1,"IDAI",0.0,0.0,0.0,0,"ONLY");
 407
 408     // Positions detectors, Beam Axis Z, X to the right, Y up to the sky.
 409     Float_t p00X,p00Y,p00Z,p01X,p01Y,p01Z,p10X,p10Y,p10Z,p11X,p11Y,p11Z;
 410     p00X = 0.0*kcm;
 411     p00Y = 0.0*kcm;
 412     p00Z = -694*kmm;
 413     gMC->Gspos("ITEL",1,"ITSV",p00X,p00Y,p00Z,idrotm[0],"ONLY");//SSD X
 414     p01X = 0.0*kcm;
 415     p01Y = 0.0*kcm;
 416     p01Z = -684*kmm;
 417     gMC->Gspos("ITEL",2,"ITSV",p01X,p01Y,p01Z,idrotm[1],"ONLY");//SSD Y
 418     p01X = 0.0*kcm;
 419     p01Y = 0.0*kcm;
 420     p01Z = -612*kmm;
 421     gMC->Gspos("ITEL",3,"ITSV",p01X,p01Y,p01Z,idrotm[0],"ONLY");//SSD X
 422     p01X = 0.0*kcm;
 423     p01Y = 0.0*kcm;
 424     p01Z = -602*kmm;
 425     Float_t pdetX,pdetY,pdetZ;
 426     gMC->Gspos("ITEL",4,"ITSV",p01X,p01Y,p01Z,idrotm[1],"ONLY");//SSD Y
 427     pdetX = 0.0*kcm;
 428     pdetY = 0.0*kcm;
 429     pdetZ = 0.0*kcm;
 430     gMC->Gspos("IDET",1,"ITSV",pdetX,pdetY,pdetZ,idrotm[0],"ONLY");// Detecor
 431     p10X = 0.0*kcm;
 432     p10Y = 0.0*kcm;
 433     p10Z = +450.0*kmm;
 434     gMC->Gspos("ITEL",5,"ITSV",p10X,p10Y,p10Z,idrotm[0],"ONLY");//SSD X
 435     p11X = 0.0*kcm;
 436     p11Y = 0.0*kcm;
 437     p11Z = +460.0*kcm;
 438     gMC->Gspos("ITEL",6,"ITSV",p11X,p11Y,p11Z,idrotm[1],"ONLY");//SSD Y
 439     p11X = 0.0*kcm;
 440     p11Y = 0.0*kcm;
 441     p11Z = +540.0*kcm;
 442     gMC->Gspos("ITEL",7,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");//SSD X
 443     p11X = 0.0*kcm;
 444     p11Y = 0.0*kcm;
 445     p11Z = +550.0*kcm;
 446     gMC->Gspos("ITEL",8,"ITSV",p11X,p11Y,p11Z,idrotm[1],"ONLY");//SSD Y
 447     p11X = 0.0*kcm;
 448     p11Y = 0.0*kcm;
 449     p11Z = +737.0*kcm;
 450     gMC->Gspos("ITEL",9,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");//SSD X
 451     p11X = 0.0*kcm;
 452     p11Y = 0.0*kcm;
 453     p11Z = +747.0*kcm;
 454     gMC->Gspos("ITEL",10,"ITSV",p11X,p11Y,p11Z,idrotm[1],"ONLY");//SSD Y
 455 }
 456 //______________________________________________________________________
 457 void AliITSvSDD03::CreateMaterials(){
 458     ////////////////////////////////////////////////////////////////////////
 459     //
 460     // Create ITS SDD test beam materials
 461     //     This function defines the default materials used in the Geant
 462     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 463     // AliITSvSDD03.
 464     // In general it is automatically replaced by
 465     // the CreatMaterials routine defined in AliITSv?. Should the function
 466     // CreateMaterials not exist for the geometry version you are using this
 467     // one is used. See the definition found in AliITSv5 or the other routine
 468     // for a complete definition.
 469     //
 470     // Inputs:
 471     //    none.
 472     // Outputs:
 473     //    none.
 474     // Return:
 475     //    none.
 476     /////////////////////////////////////////////////////////////////////////
 477     Float_t tmaxfdSi = 0.1; // Degree
 478     Float_t stemaxSi = 0.0075; // cm
 479     Float_t deemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
 480     Float_t epsilSi  = 1.0E-4;//
 481     Float_t stminSi  = 0.0; // cm "Default value used"
 482
 483     Float_t tmaxfdAir = 0.1; // Degree
 484     Float_t stemaxAir = .10000E+01; // cm
 485     Float_t deemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
 486     Float_t epsilAir  = 1.0E-4;//
 487     Float_t stminAir  = 0.0; // cm "Default value used"
 488     Int_t   ifield = gAlice->Field()->Integ();
 489     Float_t fieldm = gAlice->Field()->Max();
 490     //
 491     const Float_t kgpcm3=1.0,kcm=1.0;
 492     //
 493     Float_t z[10],a[10],w[10];
 494
 495     z[0] = 7.0; a[0] = 14.00674; w[0] = 0.80;
 496     z[1] = 8.0; a[1] = 15.99940; w[1] = 0.20;
 497     AliMixture(1,"AIR$",a,z,0.12050E-02*kgpcm3,2,w);
 498     AliMedium(1,"AIR$",1,0,ifield,fieldm,tmaxfdAir,stemaxAir,deemaxAir,
 499               epsilAir,stminAir);
 500
 501     AliMaterial(2,"SI$",0.28086E+02,0.14000E+02,0.23300E+01,
 502                 0.93600E+01*kcm,0.99900E+03);
 503     AliMedium(2,"SI$",2,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 504               epsilSi,stminSi);
 505     // sintilator is basicaly polystyrene
 506     z[0] = 7.0; a[0] = 14.00674; w[0] = 0.80;
 507     AliMixture(3,"Sintilator$",a,z,1.032*kgpcm3,0,w);
 508     AliMedium(3,"Sintilator$",3,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 509               epsilSi,stminSi);
 510     // assumed to be Lucite/Plexiglas
 511     z[0] = 7.0; a[0] = 14.00674; w[0] = 0.80;
 512     AliMixture(4,"PlasticBox$",a,z,1.18*kgpcm3,0,w);
 513     AliMedium(4,"PlasticBox$",4,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 514               epsilSi,stminSi);
 515 }
 516 //______________________________________________________________________
 517 void AliITSvSDD03::InitAliITSgeom(){
 518     //     Based on the geometry tree defined in Geant 3.21, this
 519     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 520     // sturture.
 521     // Inputs:
 522     //    none.
 523     // Outputs:
 524     //    none.
 525     // Return:
 526     //    none.
 527
 528     if(strcmp(gMC->GetName(),"TGeant3")) {
 529         Error("InitAliITSgeom",
 530               "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
 531         return;
 532     } // end if
 533     cout << "Reading Geometry transformation directly from Geant 3." << endl;
 534     const Int_t np=384;
 535     const Float_t pitch=50.E-4;/*cm*/
 536     Float_t box[3]={0.5*pitch*(Float_t)np,150.E-4,1.0},p[np],n[np];
 537     const Int_t ltypess = 2;
 538     const Int_t nlayers = 6;
 539     const Int_t ndeep = 6;
 540     Int_t itsGeomTreeNames[ltypess][ndeep],lnam[20],lnum[20];
 541     Int_t nlad[nlayers],ndet[nlayers];
 542     Double_t t[3],r[10];
 543     Float_t  par[20],att[20];
 544     Int_t    npar,natt,idshape,imat,imed;
 545     AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
 546     Int_t mod,typ,lay,lad,det,cpy,i,j,k;
 547     Char_t names[ltypess][ndeep][4];
 548     Int_t itsGeomTreeCopys[ltypess][ndeep];
 549     Char_t *namesA[ltypess][ndeep] = {
 550         {"ALIC","ITSV","ITEL","ITAI","IMB0","IMBS"}, // lay=5
 551         {"ALIC","ITSV","IDET","IDAI","ITS0","ITST"}};// Test SDD
 552     Int_t itsGeomTreeCopysA[ltypess][ndeep]= {{1,1,10,1,1,1},// lay=5
 553                                               {1,1,1,1,1,1}};//lay=3 TestSDD
 554     for(i=0;i<ltypess;i++)for(j=0;j<ndeep;j++){
 555         for(k=0;k<4;k++) names[i][j][k] = namesA[i][j][k];
 556         itsGeomTreeCopys[i][j] = itsGeomTreeCopysA[i][j];
 557     } // end for i,j
 558     for(i=0;i<np;i++){// Fill in anode and cathode strip locations (lower edge)
 559         p[i] = 0.5*pitch*(Float_t)np + pitch*(Float_t)i;
 560         n[i] = pitch*(Float_t)np - p[i];
 561     } // end for i
 562     // Sorry, but this is not very pritty code. It should be replaced
 563     // at some point with a version that can search through the geometry
 564     // tree its self.
 565     cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
 566     for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
 567     for(i=0;i<ltypess;i++)for(j=0;j<ndeep;j++)
 568         strncpy((char*) &itsGeomTreeNames[i][j],names[i][j],4);
 569     //  itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
 570     mod = 5;
 571     if(fITSgeom!=0) delete fITSgeom;
 572     nlad[0]=1;nlad[1]=1;nlad[2]=1;nlad[3]=1;nlad[4]=1;
 573     ndet[0]=1;ndet[1]=1;ndet[2]=1;ndet[3]=1;ndet[4]=1;
 574     fITSgeom = new AliITSgeom(0,nlayers,nlad,ndet,mod);
 575     for(typ=1;typ<=ltypess;typ++){
 576         for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[typ-1][j];
 577         for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[typ-1][j];
 578         lad = 1;
 579         det = 1;
 580         for(cpy=1;cpy<=itsGeomTreeCopys[typ-1][2];cpy++){
 581             lnum[2] = cpy;
 582             lay = cpy;
 583             if(cpy>2 && typ==1) lay = cpy +1;
 584             if(typ==2) lay = 3;
 585             mod = lay-1;
 586             ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,par,att,
 587                             imat,imed);
 588             switch (typ){
 589             case 1:
 590                 if(!(fITSgeom->IsShapeDefined((Int_t)kSDD))){
 591                     fITSgeom->CreatMatrix(mod,lay,lad,det,kSDD,t,r);
 592                     fITSgeom->ReSetShape(kSDD,new AliITSgeomSDD256(npar,par));
 593                 } // end if
 594                 break;
 595             case 2:
 596                 if(!(fITSgeom->IsShapeDefined((Int_t)kSSD))){
 597                     fITSgeom->CreatMatrix(mod,lay,lad,det,kSSD,t,r);
 598                     fITSgeom->ReSetShape(kSSD,new AliITSgeomSSD(box,0.0,0.0,
 599                                                               np+1,p,np+1,n));
 600                 } // end if
 601                 break;
 602             } // end switch
 603         } // end for cpy
 604     } // end for typ
 605     return;
 606 }
 607 //______________________________________________________________________
 608 void AliITSvSDD03::Init(){
 609     ////////////////////////////////////////////////////////////////////////
 610     //     Initialise the ITS after it has been created.
 611     // Inputs:
 612     //    none.
 613     // Outputs:
 614     //    none.
 615     // Return:
 616     //    none.
 617     ////////////////////////////////////////////////////////////////////////
 618     Int_t i;
 619
 620     cout << endl;
 621     for(i=0;i<26;i++) cout << "*";
 622     cout << " AliITSvSDD03" << fMinorVersion << "_Init ";
 623     for(i=0;i<25;i++) cout << "*";cout << endl;
 624 //
 625     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 626     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 627     if(fITSgeom!=0) delete fITSgeom;
 628     fITSgeom = new AliITSgeom();
 629     if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
 630     if(!fGeomDetIn) this->InitAliITSgeom();
 631     if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
 632     AliITS::Init();
 633 //
 634     for(i=0;i<72;i++) cout << "*";
 635     cout << endl;
 636     fIDMother = gMC->VolId("ITSV"); // ITS Mother Volume ID.
 637 }
 638 //______________________________________________________________________
 639 void AliITSvSDD03::SetDefaults(){
 640     // sets the default segmentation, response, digit and raw cluster classes
 641     // Inputs:
 642     //    none.
 643     // Outputs:
 644     //    none.
 645     // Return:
 646     //    none.
 647     const Float_t kconv = 1.0e+04; // convert cm to microns
 648
 649     Info("SetDefaults","Setting up only SDD detector");
 650
 651     AliITSDetType *iDetType;
 652     AliITSgeomSDD *s1;
 653     AliITSgeomSSD *s2;
 654     //Int_t i;
 655     //Float_t bx[256],bz[280];
 656
 657     // SDD
 658     iDetType=DetType(kSDD);
 659     s1 = (AliITSgeomSDD*) fITSgeom->GetShape(kSDD);// Get shape info. Do it this way for now.
 660     AliITSresponseSDD *resp1=new AliITSresponseSDD("simulated");
 661     SetResponseModel(kSDD,resp1);
 662     AliITSsegmentationSDD *seg1=new AliITSsegmentationSDD(fITSgeom,resp1);
 663     seg1->SetDetSize(s1->GetDx()*kconv, // base this on AliITSgeomSDD
 664                      s1->GetDz()*2.*kconv, // for now.
 665                      s1->GetDy()*2.*kconv); // x,z,y full width in microns.
 666     seg1->SetNPads(256,256);// Use AliITSgeomSDD for now
 667     SetSegmentationModel(kSDD,seg1);
 668     const char *kData1=(iDetType->GetResponseModel())->DataType();
 669     const char *kopt=iDetType->GetResponseModel()->ZeroSuppOption();
 670     if((!strstr(kopt,"2D")) && (!strstr(kopt,"1D")) || strstr(kData1,"real") ){
 671         iDetType->ClassNames("AliITSdigit","AliITSRawClusterSDD");
 672     } else iDetType->ClassNames("AliITSdigitSDD","AliITSRawClusterSDD");
 673 //    SetSimulationModel(kSDD,new AliITSsimulationSDD(seg1,resp1));
 674 //    iDetType->ReconstructionModel(new AliITSClusterFinderSDD());
 675
 676     // SSD  Layer 5
 677     iDetType=DetType(kSSD);
 678     s2 = (AliITSgeomSSD*) fITSgeom->GetShape(kSSD);// Get shape info. Do it this way for now.
 679     AliITSresponse *resp2=new AliITSresponseSSD("simulated");
 680     SetResponseModel(kSSD,resp2);
 681     AliITSsegmentationSSD *seg2=new AliITSsegmentationSSD(fITSgeom);
 682     seg2->SetDetSize(s2->GetDx()*2.*kconv, // base this on AliITSgeomSSD
 683                      s2->GetDz()*2.*kconv, // for now.
 684                      s2->GetDy()*2.*kconv); // x,z,y full width in microns.
 685     seg2->SetPadSize(95.,0.); // strip x pitch in microns
 686     seg2->SetNPads(768,0); // number of strips on each side.
 687     seg2->SetAngles(0.0075,0.0275); // strip angels rad P and N side.
 688     seg2->SetAnglesLay5(0.0075,0.0275); // strip angels rad P and N side.
 689     seg2->SetAnglesLay6(0.0275,0.0075); // strip angels rad P and N side.
 690     SetSegmentationModel(kSSD,seg2);
 691     const char *kData2=(iDetType->GetResponseModel())->DataType();
 692     if(strstr(kData2,"real") ) iDetType->ClassNames("AliITSdigit",
 693                                                     "AliITSRawClusterSSD");
 694     else iDetType->ClassNames("AliITSdigitSSD","AliITSRawClusterSSD");
 695 //    SetSimulationModel(kSSD,new AliITSsimulationSSD(seg2,resp2));
 696 //    iDetType->ReconstructionModel(new AliITSClusterFinderSSD());
 697
 698     if(kNTYPES>3){
 699         Warning("SetDefaults",
 700                 "Only the four basic detector types are initialised!");
 701     }// end if
 702     return;
 703 }
 704 //______________________________________________________________________
 705 void AliITSvSDD03::SetDefaultSimulation(){
 706     // sets the default simulation.
 707     // Inputs:
 708     //      none.
 709     // Outputs:
 710     //      none.
 711     // Return:
 712     //      none.
 713
 714     AliITSDetType *iDetType;
 715     AliITSsimulation *sim;
 716     iDetType=DetType(kSPD);
 717     sim = iDetType->GetSimulationModel();
 718     if (!sim) {
 719         AliITSsegmentation *seg0=
 720             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 721         AliITSresponse *res0 = (AliITSresponse*)iDetType->GetResponseModel();
 722         AliITSsimulationSPD *sim0=new AliITSsimulationSPD(seg0,res0);
 723         SetSimulationModel(kSPD,sim0);
 724     }else{ // simulation exists, make sure it is set up properly.
 725         ((AliITSsimulationSPD*)sim)->Init(
 726             (AliITSsegmentationSPD*) iDetType->GetSegmentationModel(),
 727             (AliITSresponseSPD*) iDetType->GetResponseModel());
 728 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 729 //            (AliITSresponse*)iDetType->GetResponseModel());
 730 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 731 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 732     } // end if
 733     iDetType=DetType(kSDD);
 734     sim = iDetType->GetSimulationModel();
 735     if (!sim) {
 736         AliITSsegmentation *seg1=
 737             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 738         AliITSresponse *res1 = (AliITSresponse*)iDetType->GetResponseModel();
 739         AliITSsimulationSDD *sim1=new AliITSsimulationSDD(seg1,res1);
 740         SetSimulationModel(kSDD,sim1);
 741     }else{ // simulation exists, make sure it is set up properly.
 742         ((AliITSsimulationSDD*)sim)->Init(
 743             (AliITSsegmentationSDD*) iDetType->GetSegmentationModel(),
 744             (AliITSresponseSDD*) iDetType->GetResponseModel());
 745 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 746 //            (AliITSresponse*)iDetType->GetResponseModel());
 747 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 748 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 749     } //end if
 750     iDetType=DetType(kSSD);
 751     sim = iDetType->GetSimulationModel();
 752     if (!sim) {
 753         AliITSsegmentation *seg2=
 754             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 755         AliITSresponse *res2 = (AliITSresponse*)iDetType->GetResponseModel();
 756         AliITSsimulationSSD *sim2=new AliITSsimulationSSD(seg2,res2);
 757         SetSimulationModel(kSDD,sim2);
 758     }else{ // simulation exists, make sure it is set up properly.
 759         ((AliITSsimulationSSD*)sim)->Init(
 760             (AliITSsegmentationSSD*) iDetType->GetSegmentationModel(),
 761             (AliITSresponseSSD*) iDetType->GetResponseModel());
 762 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 763 //            (AliITSresponse*)iDetType->GetResponseModel());
 764 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 765 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 766     } // end if
 767 }
 768 //______________________________________________________________________
 769 void AliITSvSDD03::DrawModule(){
 770     ////////////////////////////////////////////////////////////////////////
 771     //     Draw a shaded view of the ITS SDD test beam version 1.
 772     // Inputs:
 773     //    none.
 774     // Outputs:
 775     //    none.
 776     // Return:
 777     //    none.
 778     ////////////////////////////////////////////////////////////////////////
 779     // Set everything unseen
 780     gMC->Gsatt("*", "seen", -1);
 781     // Set ALIC mother visible
 782     gMC->Gsatt("ALIC","SEEN",0);
 783     // Set ALIC ITS visible
 784     gMC->Gsatt("ITSV","SEEN",0);
 785     // Set ALIC Telescopes visible
 786     gMC->Gsatt("ITEL","SEEN",0);
 787     // Set ALIC detetcor visible
 788     gMC->Gsatt("IDET","SEEN",0);
 789     // Set Detector chip mother visible and drawn
 790     gMC->Gsatt("IPC0","SEEN",1);
 791     // Set Detector mother visible and drawn
 792     gMC->Gsatt("ITS0","SEEN",1);
 793     // Set minibus chip mother visible and drawn
 794     gMC->Gsatt("ICMB","SEEN",1);
 795     // Set minibus mother visible and drawn
 796     gMC->Gsatt("IMB0","SEEN",1);
 797 }
 798 //______________________________________________________________________
 799 void AliITSvSDD03::StepManager(){
 800     ////////////////////////////////////////////////////////////////////////
 801     //    Called for every step in the ITS SDD test beam, then calles the
 802     // AliITShit class  creator with the information to be recoreded about
 803     //  that hit.
 804     //     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 805     // printing of information to a file which can be used to create a .det
 806     // file read in by the routine CreateGeometry(). If set to 0 or any other
 807     // value except 1, the default behavior, then no such file is created nor
 808     // it the extra variables and the like used in the printing allocated.
 809     // Inputs:
 810     //    none.
 811     // Outputs:
 812     //    none.
 813     // Return:
 814     //    none.
 815     ////////////////////////////////////////////////////////////////////////
 816     Int_t         copy, id;
 817     TLorentzVector position, momentum;
 818     static TLorentzVector position0;
 819     static Int_t stat0=0;
 820     if((id=gMC->CurrentVolID(copy) == fIDMother)&&
 821        (gMC->IsTrackEntering()||gMC->IsTrackExiting())){
 822         copy = fTrackReferences->GetEntriesFast();
 823         TClonesArray &lTR = *fTrackReferences;
 824         // Fill TrackReference structure with this new TrackReference.
 825         new(lTR[copy]) AliTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber());
 826     } // if Outer ITS mother Volume
 827     if(!(this->IsActive())){
 828         return;
 829     } // end if !Active volume.
 830     Int_t   vol[5];
 831     TClonesArray &lhits = *fHits;
 832     //
 833     // Track status
 834     vol[3] = 0;
 835     vol[4] = 0;
 836     if(gMC->IsTrackInside())      vol[3] +=  1;
 837     if(gMC->IsTrackEntering())    vol[3] +=  2;
 838     if(gMC->IsTrackExiting())     vol[3] +=  4;
 839     if(gMC->IsTrackOut())         vol[3] +=  8;
 840     if(gMC->IsTrackDisappeared()) vol[3] += 16;
 841     if(gMC->IsTrackStop())        vol[3] += 32;
 842     if(gMC->IsTrackAlive())       vol[3] += 64;
 843     //
 844     // Fill hit structure.
 845     if(!(gMC->TrackCharge())) return;
 846     id = gMC->CurrentVolID(copy);
 847     if(id==fIdSens[0]){  // Volume name "IMBS"
 848         vol[2] = 1; // detector
 849         id = gMC->CurrentVolOffID(3,copy);
 850         //detector copy in the ladder = 1<->4  (ITS1 < I101 < I103 < I10A)
 851         vol[1] = copy; // ladder
 852         vol[0] = 5; // Lay
 853         if(copy>4){
 854             vol[0] = 6;
 855             vol[1] = copy - 4;
 856         } // end if
 857         if(copy>2) vol[0]++;
 858     } else if(id == fIdSens[1]){ // Volume name "ITST"
 859         vol[0] = 3; // layer
 860         vol[1] = 1; // ladder
 861         id = gMC->CurrentVolOffID(3,copy);
 862         //detector copy in the ladder = 1<->4  (ITS2 < I1D1 < I1D3 < I20A)
 863         vol[2] = 1;  // detector
 864     } else return; // end if
 865     //
 866     gMC->TrackPosition(position);
 867     gMC->TrackMomentum(momentum);
 868     vol[4] = stat0;
 869     if(gMC->IsTrackEntering()){
 870         position0 = position;
 871         stat0 = vol[3];
 872         return;
 873     } // end if IsEntering
 874     // Fill hit structure with this new hit only for non-entrerance hits.
 875     else new(lhits[fNhits++]) AliITShit(fIshunt,
 876                                         gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,
 877                                         gMC->Edep(),gMC->TrackTime(),position,
 878                                         position0,momentum);
 879     //
 880     position0 = position;
 881     stat0 = vol[3];
 882
 883     return;
 884 }
 885