ITS/AliITSvSPD02.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 /* $Id$ */
  17
  18 #include <Riostream.h>
  19 #include <TMath.h>
  20 #include <TGeometry.h>
  21 #include <TNode.h>
  22 #include <TLorentzVector.h>
  23 #include <TClonesArray.h>
  24 #include <TBRIK.h>
  25
  26 #include "AliRun.h"
  27 #include "AliMagF.h"
  28 #include "AliITSGeant3Geometry.h"
  29 #include "AliTrackReference.h"
  30 #include "AliITShit.h"
  31 #include "AliITS.h"
  32 #include "AliITSvSPD02.h"
  33 #include "AliITSgeom.h"
  34 #include "AliITSgeomSPD.h"
  35 #include "AliITSgeomSSD.h"
  36 #include "AliITSDetType.h"
  37 #include "AliITSresponseSPDdubna.h"
  38 #include "AliITSresponseSDD.h"
  39 #include "AliITSresponseSSD.h"
  40 #include "AliITSsegmentationSPD.h"
  41 #include "AliITSsegmentationSDD.h"
  42 #include "AliITSsegmentationSSD.h"
  43 #include "AliITSsimulationSPDdubna.h"
  44 #include "AliITSsimulationSDD.h"
  45 #include "AliITSsimulationSSD.h"
  46 #include "AliMC.h"
  47
  48 ///////////////////////////////////////////////////////////////////////
  49 // Step manager and
  50 // geometry class
  51 // for the ITS
  52 // SPD test beam
  53 // geometry of summer 2002
  54 //
  55 ///////////////////////////////////////////////////////////////////////
  56 ClassImp(AliITSvSPD02)
  57
  58 //______________________________________________________________________
  59 AliITSvSPD02::AliITSvSPD02() {
  60     ////////////////////////////////////////////////////////////////////////
  61     // Standard default constructor for the ITS SPD test beam 2002 version 1.
  62     // Inputs:
  63     //    none.
  64     // Outputs:
  65     //    none.
  66     // Return:
  67     //    A default created class.
  68     ////////////////////////////////////////////////////////////////////////
  69     Int_t i;
  70
  71     fIdN          = 0;
  72     fIdName       = 0;
  73     fIdSens       = 0;
  74     fEuclidOut    = kFALSE; // Don't write Euclide file
  75     fGeomDetOut   = kFALSE; // Don't write .det file
  76     fGeomDetIn    = kFALSE; // Don't Read .det file
  77     fMajorVersion = IsVersion();
  78     fMinorVersion = -1;
  79     for(i=0;i<60;i++) fRead[i] = '\0';
  80     for(i=0;i<60;i++) fWrite[i] = '\0';
  81     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
  82 }
  83 //______________________________________________________________________
  84 AliITSvSPD02::AliITSvSPD02(const char *title) : AliITS("ITS", title){
  85     ////////////////////////////////////////////////////////////////////////
  86     //    Standard constructor for the ITS SPD testbeam 2002 version 1.
  87     // Inputs:
  88     //    const char *title    title for this ITS geometry.
  89     // Outputs:
  90     //    none.
  91     // Return:
  92     //    A standard created class.
  93     ////////////////////////////////////////////////////////////////////////
  94     Int_t i;
  95
  96     fIdN = 2;
  97     fIdName = new TString[fIdN];
  98     fIdName[0] = "IMBS";
  99     fIdName[1] = "ITST";
 100     fIdSens    = new Int_t[fIdN];
 101     for(i=0;i<fIdN;i++) fIdSens[i] = 0;
 102     fMajorVersion = IsVersion();
 103     fMinorVersion = 2;
 104     fEuclidOut    = kFALSE; // Don't write Euclide file
 105     fGeomDetOut   = kFALSE; // Don't write .det file
 106     fGeomDetIn    = kFALSE; // Don't Read .det file
 107     SetThicknessDet1();
 108     SetThicknessDet2();
 109     SetThicknessChip1();
 110     SetThicknessChip2();
 111
 112     fEuclidGeometry="$ALICE_ROOT/ITS/ITSgeometry_vSPD022.euc";
 113     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_vSPD022.det",60);
 114     strncpy(fRead,fEuclidGeomDet,60);
 115     strncpy(fWrite,fEuclidGeomDet,60);
 116 }
 117 //______________________________________________________________________
 118 AliITSvSPD02::AliITSvSPD02(const AliITSvSPD02 &source) : AliITS(source){
 119     ////////////////////////////////////////////////////////////////////////
 120     //     Copy Constructor for ITS SPD test beam 2002 version 1.
 121     // This class is not to be copied. Function only dummy.
 122     // Inputs:
 123     //    const AliITSvSPD02 &source   The class to be copied
 124     // Outputs:
 125     //    none.
 126     // Return:
 127     //    A warning message.
 128     ////////////////////////////////////////////////////////////////////////
 129     if(&source == this) return;
 130     Warning("Copy Constructor","Not allowed to copy AliITSvSPD02");
 131     return;
 132 }
 133 //______________________________________________________________________
 134 AliITSvSPD02& AliITSvSPD02::operator=(const AliITSvSPD02 &source){
 135     ////////////////////////////////////////////////////////////////////////
 136     //    Assignment operator for the ITS SPD test beam 2002 version 1.
 137     // This class is not to be copied. Function only dummy.
 138     // Inputs:
 139     //    const AliITSvSPD02 &source   The class to be copied
 140     // Outputs:
 141     //    none.
 142     // Return:
 143     //    A Warning message
 144     ////////////////////////////////////////////////////////////////////////
 145     if(&source == this) return *this;
 146     Warning("= operator","Not allowed to copy AliITSvSPD02");
 147     return *this;
 148 }
 149 //______________________________________________________________________
 150 AliITSvSPD02::~AliITSvSPD02() {
 151     ////////////////////////////////////////////////////////////////////////
 152     //    Standard destructor for the ITS SPD test beam 2002 version 1.
 153     // Inputs:
 154     //    none.
 155     // Outputs:
 156     //    none.
 157     // Return:
 158     //    none.
 159     ////////////////////////////////////////////////////////////////////////
 160 }
 161 //______________________________________________________________________
 162 void AliITSvSPD02::BuildGeometry(){
 163     ////////////////////////////////////////////////////////////////////////
 164     //    Geometry builder for the ITS SPD test beam 2002 version 1.
 165     //    ALIC    ALICE Mother Volume
 166     //     |- ITSV     ITS Mother Volume
 167     //         |- IDET       Detector under Test
 168     //         |   |- ITS0       SPD Si Chip
 169     //         |   |  |- ITST      SPD Sensitivve Volume
 170     //         |   |- IPC0 *5    Readout chip
 171     //         |- ITEL *4    SPD Telescope
 172     //             |- IMB0       SPD Si Chip
 173     //             |   |- IMBS     SPD Sensitive volume
 174     //             |- ICMB       Chip MiniBus.
 175     // Inputs:
 176     //    none.
 177     // Outputs:
 178     //    none.
 179     // Return:
 180     //    none.
 181     ////////////////////////////////////////////////////////////////////////
 182     // Get the top alice volume.
 183     TNode *aALIC = gAlice->GetGeometry()->GetNode("alice");
 184     aALIC->cd();
 185
 186     // Define ITS Mother Volume
 187     Float_t data[3];
 188     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 189     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 190     //Float_t yposition= 0.0;
 191     TRotMatrix *r0 = new TRotMatrix("ITSidrotm0","ITSidrotm0",
 192                                     90.0,0,0.0,0,90.0,270.0);
 193     data[0] = 10.0;
 194     data[1] = 50.0;
 195     data[2] = 100.0;
 196     TBRIK *iITSVshape = new TBRIK("ITSVshape","ITS Logical Mother Volume","Air",
 197                                  data[0],data[1],data[2]);
 198     TNode *iITSV = new TNode("ITSV","ITS Mother Volume",iITSVshape,
 199                             0.0,0.0,0.0,0,0);
 200     iITSV->cd(); // set ourselve into ITSV subvolume of aALIC
 201
 202     // SPD part of telescope (MiniBuS)
 203     data[0] = 0.705;
 204     data[1] = 0.5*ddettelescope;
 205     data[2] = 3.536;
 206     TBRIK *iIMB0shape = new TBRIK("IMB0shape","SPD wafer","Si",
 207                                  data[0],data[1],data[2]);
 208     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 209     data[0] = detMiniBusX = 0.64;
 210     data[1] = detMiniBusY = 0.5*ddettelescope;
 211     data[2] = detMiniBusZ = 3.48;
 212     TBRIK *iIMBSshape = new TBRIK("IMBSshape","SPD Sensitive volume","Si",
 213                                  data[0],data[1],data[2]);
 214     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 215     data[0] = chipMiniBusX = 0.793;
 216     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 217     data[2] = chipMiniBusZ = 0.68;
 218     TBRIK *iICMBshape = new TBRIK("ICMBshape","chip Minibus","Si",
 219                                  data[0],data[1],data[2]);
 220     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 221     data[1] = detMiniBusY+chipMiniBusY;
 222     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 223     TBRIK *iITELshape = new TBRIK("ITELshape","ITELshape","Air",
 224                                  data[0],data[1],data[2]);
 225
 226     // SPD under test
 227     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 228     data[0] = 0.705;
 229     data[1] = ddettest;
 230     data[2] = 3.536;
 231     TBRIK *iITS0shape = new TBRIK("ITS0shape","SPD wafer","Si",
 232                                  data[0],data[1],data[2]); // contains detector
 233     data[0] = spdX = 0.64;
 234     data[1] = spdY = ddettest;
 235     data[2] = spdZ = 3.48;
 236     TBRIK *iITSTshape = new TBRIK("ITSTshape","SPD sensitive volume","Si",
 237                                  data[0],data[1],data[2]);
 238     // ITS0 with no translation and unit rotation matrix.
 239     data[0] = spdchipX = 0.793;
 240     data[1] = spdchipY = dchiptest;
 241     data[2] = spdchipZ = 0.68;
 242     TBRIK *iIPC0shape = new TBRIK("IPC0shape","Readout Chips","Si",
 243                                  data[0],data[1],data[2]); // chip under test
 244     data[0] = TMath::Max(spdchipX,spdX);
 245     data[1] = spdY+spdchipY;
 246     data[2] = TMath::Max(spdchipZ,spdZ);
 247     TBRIK *iIDETshape = new TBRIK("IDETshape","Detector Under Test","Air",
 248                                  data[0],data[1],data[2]);
 249     // Place volumes in geometry
 250     Int_t i,j;
 251     char name[20],title[50];
 252     Double_t px=0.0,py=0.0,pz[4]={-38.0,0.0,0.0,0.0};
 253     pz[1] = pz[0]+2.0;
 254     pz[2] = pz[1]+38.0+spdY+spdchipY+34.5;
 255     pz[3] = pz[2]+2.0;
 256     TNode *iITEL[4],*iICMB[4],*iIMB0[4],*iIMBS[4];
 257     TNode *iIDET = new TNode("IDET","Detector Under Test",iIDETshape,
 258                             0.0,0.0,pz[1]+38.0,r0,0);
 259     iIDET->cd();
 260     TNode *iITS0 = new TNode("ITS0","SPD Chip",iITS0shape,
 261                             0.0,iIDETshape->GetDy()-spdY,0.0,0,0);
 262     TNode *iIPC0[5];
 263     for(i=0;i<5;i++) { //place readout chips on the back of SPD chip under test
 264         sprintf(name,"IPC0%d",i);
 265         sprintf(title,"Readout chip #%d",i+1);
 266         j = i-2;
 267         iIPC0[i] = new TNode(name,title,iIPC0shape,
 268                             0.0,spdchipY-iIDETshape->GetDy(),
 269                             j*2.0*spdchipZ+j*0.25*(spdZ-5.*spdchipZ),0,0);
 270     } // end for i
 271     iITS0->cd();
 272     TNode *iITST = new TNode("ITST","SPD sensitive volume",iITSTshape,
 273                             0.0,0.0,0.0,0,0);
 274     for(Int_t i=0;i<4;i++){
 275         iITSV->cd();
 276         sprintf(name,"ITEL%d",i);
 277         sprintf(title,"Test beam telescope element #%d",i+1);
 278         iITEL[i] = new TNode(name,title,iITELshape,px,py,pz[i],r0,0);
 279         iITEL[i]->cd();
 280         iICMB[i] = new TNode("ICMB","Chip MiniBus",iICMBshape,
 281                             0.0,-iITELshape->GetDy()+detMiniBusY,0.0,0,0);
 282         iIMB0[i] = new TNode("IMB0","Chip MiniBus",iIMB0shape,
 283                             0.0, iITELshape->GetDy()-detMiniBusY,0.0,0,0);
 284         iIMB0[i]->cd();
 285         iIMBS[i] = new TNode("IMBS","IMBS",iIMBSshape,0.0,0.0,0.0,0,0);
 286         // place IMBS inside IMB0 with no translation and unit rotation matrix.
 287     } // end for i
 288     aALIC->cd();
 289     iITST->SetLineColor(kYellow);
 290     fNodes->Add(iITST);
 291     for(i=0;i<4;i++){
 292         iIMBS[i]->SetLineColor(kGreen);
 293         fNodes->Add(iIMBS[i]);
 294     } // end for i
 295 }
 296 //______________________________________________________________________
 297 void AliITSvSPD02::CreateGeometry(){
 298     ////////////////////////////////////////////////////////////////////////
 299     //  This routine defines and Creates the geometry for version 1 of the ITS.
 300     //    ALIC    ALICE Mother Volume
 301     //     |- ITSV     ITS Mother Volume
 302     //         |- IDET       Detector under Test
 303     //         |   |- ITS0       SPD Si Chip
 304     //         |   |  |- ITST      SPD Sensitivve Volume
 305     //         |   |- IPC0 *5    Readout chip
 306     //         |- ITEL *4    SPD Telescope
 307     //             |- IMB0       SPD Si Chip
 308     //             |   |- IMBS     SPD Sensitive volume
 309     //             |- ICMB       Chip MiniBus.
 310     // Inputs:
 311     //    none.
 312     // Outputs:
 313     //    none.
 314     // Return:
 315     //    none.
 316     ////////////////////////////////////////////////////////////////////////
 317     Float_t data[49];
 318     // Define media off-set
 319     Int_t *idtmed = fIdtmed->GetArray()+1; // array of media indexes
 320     Int_t idrotm[4]; // Array of rotation matrix indexes
 321     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 322     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 323     Float_t yposition= 0.0;
 324
 325     // Define Rotation-reflextion Matrixes needed
 326     // 0 is the unit matrix
 327     AliMatrix(idrotm[0], 90.0,0.0, 0.0,0.0, 90.0,270.0);
 328     data[0] = 10.0;
 329     data[1] = 50.0;
 330     data[2] = 100.0;
 331     gMC->Gsvolu("ITSV","BOX",idtmed[0],data,3);
 332     gMC->Gspos("ITSV",1,"ALIC",0.0,0.0,0.0,0,"ONLY");
 333
 334     //cout << "idtmed[0]=" << idtmed[0]<<endl;
 335     //cout << "idtmed[1]=" << idtmed[1]<<endl;
 336     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 337     // SPD part of telescope (MiniBuS)
 338     data[0] = detMiniBusX = 0.705;
 339     data[1] = detMiniBusY = 0.5*ddettelescope;
 340     data[2] = detMiniBusZ = 3.536;
 341     gMC->Gsvolu("IMB0", "BOX ", idtmed[1], data, 3);   // contains detector
 342     data[0] = 0.64;
 343     data[1] = 0.5*ddettelescope;
 344     data[2] = 3.48;
 345     gMC->Gsvolu("IMBS","BOX ",idtmed[1],data,3); // sensitive detecor volulme
 346     gMC->Gspos("IMBS",1,"IMB0",0.0,0.0,0.0,0,"ONLY"); // place IMBS inside
 347     // IMB0 with no translation and unit rotation matrix.
 348     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 349     data[0] = chipMiniBusX = 0.793;
 350     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 351     data[2] = chipMiniBusZ = 0.68;
 352     gMC->Gsvolu("ICMB","BOX ",idtmed[1],data, 3);   // chip Minibus
 353     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 354     data[1] = detMiniBusY+chipMiniBusY;
 355     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 356     gMC->Gsvolu("ITEL","BOX ",idtmed[0],data,3);
 357     gMC->Gspos("IMB0",1,"ITEL",0.0,data[1]-detMiniBusY,0.0,0,"ONLY");
 358     gMC->Gspos("ICMB",1,"ITEL",0.0,-data[1]+chipMiniBusY,0.0,0,"ONLY");
 359
 360     // SPD under test
 361     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 362     data[0] = spdX = 0.705;
 363     data[1] = spdY = 0.5*ddettest;
 364     data[2] = spdZ = 3.536;
 365     gMC->Gsvolu("ITS0", "BOX ", idtmed[1], data, 3);   // contains detector
 366     data[0] = 0.64;
 367     data[1] = 0.5*ddettest;
 368     data[2] = 3.48;
 369     gMC->Gsvolu("ITST","BOX ",idtmed[1],data,3);// sensitive detecor volume
 370     gMC->Gspos("ITST",1,"ITS0",0.0,0.0,0.0,0,"ONLY"); // place ITST inside
 371     // ITS0 with no translation and unit rotation matrix.
 372     data[0] = spdchipX = 0.793;
 373     data[1] = spdchipY = 0.5*dchiptest;
 374     data[2] = spdchipZ = 0.68;
 375     gMC->Gsvolu("IPC0", "BOX ", idtmed[1],data,3);   // chip under test
 376     data[0] = TMath::Max(spdchipX,spdX);
 377     data[1] = spdY+spdchipY;
 378     data[2] = TMath::Max(spdchipZ,spdZ);
 379     gMC->Gsvolu("IDET","BOX ",idtmed[0],data,3);
 380     gMC->Gspos("ITS0",1,"IDET",0.0,data[1]-spdY,0.0,0,"ONLY");
 381     for(Int_t i=-2;i<3;i++) gMC->Gspos("IPC0",i+3,"IDET",0.0,-data[1]+spdchipY,
 382               i*2.*spdchipZ+i*0.25*(spdZ-5.*spdchipZ),0,"ONLY");
 383
 384     // Positions detectors, Beam Axis Z, X to the right, Y up to the sky.
 385     Float_t p00X,p00Y,p00Z,p01X,p01Y,p01Z,p10X,p10Y,p10Z,p11X,p11Y,p11Z;
 386     p00X = 0.0;
 387     p00Y = 0.0;
 388     p00Z = -38.0;
 389     gMC->Gspos("ITEL",1,"ITSV",p00X,p00Y,p00Z,idrotm[0],"ONLY");
 390     p01X = 0.0;
 391     p01Y = 0.0;
 392     p01Z = p00Z+2.0;
 393     gMC->Gspos("ITEL",2,"ITSV",p01X,p01Y,p01Z,idrotm[0],"ONLY");
 394     Float_t pdetX,pdetY,pdetZ;
 395     pdetX = 0.0;
 396     pdetY = 0.0+yposition;
 397     pdetZ = p01Z+38.0;
 398     gMC->Gspos("IDET",1,"ITSV",pdetX,pdetY,pdetZ,idrotm[0],"ONLY");
 399     p10X = 0.0;
 400     p10Y = 0.0;
 401     p10Z = pdetZ + 34.5;
 402     gMC->Gspos("ITEL",3,"ITSV",p10X,p10Y,p10Z,idrotm[0],"ONLY");
 403     p11X = 0.0;
 404     p11Y = 0.0;
 405     p11Z = p10Z+2.0;
 406     gMC->Gspos("ITEL",4,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");
 407 }
 408 //______________________________________________________________________
 409 void AliITSvSPD02::CreateMaterials(){
 410     ////////////////////////////////////////////////////////////////////////
 411     //
 412     // Create ITS SPD test beam materials
 413     //     This function defines the default materials used in the Geant
 414     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 415     // AliITSvSPD02.
 416     // In general it is automatically replaced by
 417     // the CreatMaterials routine defined in AliITSv?. Should the function
 418     // CreateMaterials not exist for the geometry version you are using this
 419     // one is used. See the definition found in AliITSv5 or the other routine
 420     // for a complete definition.
 421     //
 422     // Inputs:
 423     //    none.
 424     // Outputs:
 425     //    none.
 426     // Return:
 427     //    none.
 428     /////////////////////////////////////////////////////////////////////////
 429     Float_t tmaxfdSi = 0.1; // Degree
 430     Float_t stemaxSi = 0.0075; // cm
 431     Float_t deemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
 432     Float_t epsilSi  = 1.0E-4;//
 433     Float_t stminSi  = 0.0; // cm "Default value used"
 434
 435     Float_t tmaxfdAir = 0.1; // Degree
 436     Float_t stemaxAir = .10000E+01; // cm
 437     Float_t deemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
 438     Float_t epsilAir  = 1.0E-4;//
 439     Float_t stminAir  = 0.0; // cm "Default value used"
 440     Int_t   ifield = gAlice->Field()->Integ();
 441     Float_t fieldm = gAlice->Field()->Max();
 442
 443     AliMaterial(1,"AIR$",0.14610E+02,0.73000E+01,0.12050E-02,
 444                 0.30423E+05,0.99900E+03);
 445     AliMedium(1,"AIR$",1,0,ifield,fieldm,tmaxfdAir,stemaxAir,deemaxAir,
 446               epsilAir,stminAir);
 447
 448     AliMaterial(2,"SI$",0.28086E+02,0.14000E+02,0.23300E+01,
 449                 0.93600E+01,0.99900E+03);
 450     AliMedium(2,"SI$",2,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 451               epsilSi,stminSi);
 452 }
 453 //______________________________________________________________________
 454 void AliITSvSPD02::InitAliITSgeom(){
 455     //     Based on the geometry tree defined in Geant 3.21, this
 456     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 457     // sturture.
 458     // Inputs:
 459     //    none.
 460     // Outputs:
 461     //    none.
 462     // Return:
 463     //    none.
 464     if(strcmp(gMC->GetName(),"TGeant3")) {
 465         Error("InitAliITSgeom",
 466                 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
 467         return;
 468     } // end if
 469     cout << "Reading Geometry transformation directly from Geant 3." << endl;
 470     const Int_t kltypess = 2;
 471     const Int_t knlayers = 5;
 472     const Int_t kndeep = 5;
 473     Int_t itsGeomTreeNames[kltypess][kndeep],lnam[20],lnum[20];
 474     Int_t nlad[knlayers],ndet[knlayers];
 475     Double_t t[3],r[10];
 476     Float_t  par[20],att[20];
 477     Int_t    npar,natt,idshape,imat,imed;
 478     AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
 479     Int_t mod,typ,lay,lad,det,cpy,i,j,k;
 480     Char_t names[kltypess][kndeep][4];
 481     Int_t itsGeomTreeCopys[kltypess][kndeep];
 482     const char *namesA[kltypess][kndeep] = {
 483      {"ALIC","ITSV","ITEL","IMB0","IMBS"}, // lay=1
 484      {"ALIC","ITSV","IDET","ITS0","ITST"}};// Test SPD
 485     Int_t itsGeomTreeCopysA[kltypess][kndeep]= {{1,1,4,1,1},// lay=1
 486                                               {1,1,1,1,1}};//lay=2 TestSPD
 487     for(i=0;i<kltypess;i++)for(j=0;j<kndeep;j++){
 488         for(k=0;k<4;k++) names[i][j][k] = namesA[i][j][k];
 489         itsGeomTreeCopys[i][j] = itsGeomTreeCopysA[i][j];
 490     } // end for i,j
 491     // Sorry, but this is not very pritty code. It should be replaced
 492     // at some point with a version that can search through the geometry
 493     // tree its self.
 494     cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
 495     for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
 496     for(i=0;i<kltypess;i++)for(j=0;j<kndeep;j++)
 497         strncpy((char*) &itsGeomTreeNames[i][j],names[i][j],4);
 498     //  itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
 499     mod = 5;
 500     if(fITSgeom!=0) delete fITSgeom;
 501     nlad[0]=1;nlad[1]=1;nlad[2]=1;nlad[3]=1;nlad[4]=1;
 502     ndet[0]=1;ndet[1]=1;ndet[2]=1;ndet[3]=1;ndet[4]=1;
 503     fITSgeom = new AliITSgeom(0,knlayers,nlad,ndet,mod);
 504     for(typ=1;typ<=kltypess;typ++){
 505         for(j=0;j<kndeep;j++) lnam[j] = itsGeomTreeNames[typ-1][j];
 506         for(j=0;j<kndeep;j++) lnum[j] = itsGeomTreeCopys[typ-1][j];
 507         lad = 1;
 508         det = 1;
 509         for(cpy=1;cpy<=itsGeomTreeCopys[typ-1][2];cpy++){
 510             lnum[2] = cpy;
 511             lay = cpy;
 512             if(cpy>2 && typ==1) lay = cpy +1;
 513             if(typ==2) lay = 3;
 514             mod = lay-1;
 515             ig->GetGeometry(kndeep,lnam,lnum,t,r,idshape,npar,natt,par,att,
 516                             imat,imed);
 517             fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
 518             if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
 519                 fITSgeom->ReSetShape(kSPD,
 520                                      new AliITSgeomSPD425Short(npar,par));
 521         } // end for cpy
 522     } // end for typ
 523     return;
 524 }
 525 //______________________________________________________________________
 526 void AliITSvSPD02::Init(){
 527     ////////////////////////////////////////////////////////////////////////
 528     //     Initialise the ITS after it has been created.
 529     // Inputs:
 530     //    none.
 531     // Outputs:
 532     //    none.
 533     // Return:
 534     //    none.
 535     ////////////////////////////////////////////////////////////////////////
 536     Int_t i;
 537
 538     cout << endl;
 539     for(i=0;i<26;i++) cout << "*";
 540     cout << " ITSvSPD02" << fMinorVersion << "_Init ";
 541     for(i=0;i<25;i++) cout << "*";cout << endl;
 542 //
 543     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 544     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 545     if(fITSgeom!=0) delete fITSgeom;
 546     fITSgeom = new AliITSgeom();
 547     if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
 548     if(!fGeomDetIn) this->InitAliITSgeom();
 549     if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
 550     AliITS::Init();
 551 //
 552     for(i=0;i<72;i++) cout << "*";
 553     cout << endl;
 554     fIDMother = gMC->VolId("ITSV"); // ITS Mother Volume ID.
 555 }
 556 //______________________________________________________________________
 557 void AliITSvSPD02::SetDefaults(){
 558     // sets the default segmentation, response, digit and raw cluster classes
 559     // Inputs:
 560     //    none.
 561     // Outputs:
 562     //    none.
 563     // Return:
 564     //    none.
 565     const Float_t kconv = 1.0e+04; // convert cm to microns
 566
 567     Info("SetDefaults","Setting up only SPD detector");
 568
 569     AliITSDetType *iDetType;
 570     AliITSgeomSPD  *s0;
 571     Int_t i;
 572     Float_t bx[256],bz[280];
 573
 574     //SPD
 575     iDetType=DetType(kSPD);
 576     // Get shape info. Do it this way for now.
 577     s0 = (AliITSgeomSPD*) fITSgeom->GetShape(kSPD);
 578     AliITSresponse *resp0=new AliITSresponseSPDdubna();
 579     resp0->SetTemperature();
 580     resp0->SetDistanceOverVoltage();
 581     SetResponseModel(kSPD,resp0);
 582     AliITSsegmentationSPD *seg0=new AliITSsegmentationSPD(fITSgeom);
 583     seg0->SetDetSize(s0->GetDx()*2.*kconv, // base this on AliITSgeomSPD
 584                      s0->GetDz()*2.*kconv, // for now.
 585                      s0->GetDy()*2.*kconv); // x,z,y full width in microns.
 586     seg0->SetNPads(256,160);// Number of Bins in x and z
 587     for(i=000;i<256;i++) bx[i] =  50.0; // in x all are 50 microns.
 588     for(i=000;i<160;i++) bz[i] = 425.0; // most are 425 microns except below
 589     for(i=160;i<280;i++) bz[i] =   0.0; // Outside of detector.
 590     bz[ 31] = bz[ 32] = 625.0; // first chip boundry
 591     bz[ 63] = bz[ 64] = 625.0; // first chip boundry
 592     bz[ 95] = bz[ 96] = 625.0; // first chip boundry
 593     bz[127] = bz[128] = 625.0; // first chip boundry
 594     bz[160] = 425.0; // Set so that there is no zero pixel size for fNz.
 595     seg0->SetBinSize(bx,bz); // Based on AliITSgeomSPD for now.
 596     SetSegmentationModel(kSPD,seg0);
 597     // set digit and raw cluster classes to be used
 598     const char *kData0=(iDetType->GetResponseModel())->DataType();
 599     if (strstr(kData0,"real")) iDetType->ClassNames("AliITSdigit",
 600                                                     "AliITSRawClusterSPD");
 601     else iDetType->ClassNames("AliITSdigitSPD","AliITSRawClusterSPD");
 602 //    SetSimulationModel(kSPD,new AliITSsimulationSPD(seg0,resp0));
 603 //    iDetType->ReconstructionModel(new AliITSClusterFinderSPD());
 604
 605     SetResponseModel(kSDD,new AliITSresponseSDD());
 606     SetSegmentationModel(kSDD,new AliITSsegmentationSDD());
 607     DetType(kSDD)->ClassNames("AliITSdigitSDD","AliITSRawClusterSDD");
 608
 609     SetResponseModel(kSSD,new AliITSresponseSSD());
 610     SetSegmentationModel(kSSD,new AliITSsegmentationSSD());
 611     DetType(kSSD)->ClassNames("AliITSdigitSSD","AliITSRawClusterSSD");
 612
 613     if(kNTYPES>3){
 614         Warning("SetDefaults",
 615                 "Only the four basic detector types are initialised!");
 616     }// end if
 617     return;
 618 }
 619 //______________________________________________________________________
 620 void AliITSvSPD02::SetDefaultSimulation(){
 621     // sets the default simulation.
 622     // Inputs:
 623     //      none.
 624     // Outputs:
 625     //      none.
 626     // Return:
 627     //      none.
 628
 629     AliITSDetType *iDetType;
 630     AliITSsimulation *sim;
 631     iDetType=DetType(0);
 632     sim = iDetType->GetSimulationModel();
 633     if (!sim) {
 634         AliITSsegmentation *seg0=
 635             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 636         AliITSresponse *res0 = (AliITSresponse*)iDetType->GetResponseModel();
 637         AliITSsimulationSPDdubna *sim0=new AliITSsimulationSPDdubna(seg0,res0);
 638         SetSimulationModel(0,sim0);
 639     }else{ // simulation exists, make sure it is set up properly.
 640         ((AliITSsimulationSPDdubna*)sim)->Init(
 641             (AliITSsegmentationSPD*) iDetType->GetSegmentationModel(),
 642             (AliITSresponseSPDdubna*) iDetType->GetResponseModel());
 643 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 644 //            (AliITSresponse*)iDetType->GetResponseModel());
 645 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 646 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 647     } // end if
 648     iDetType=DetType(1);
 649     sim = iDetType->GetSimulationModel();
 650     if (!sim) {
 651         AliITSsegmentation *seg1=
 652             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 653         AliITSresponse *res1 = (AliITSresponse*)iDetType->GetResponseModel();
 654         AliITSsimulationSDD *sim1=new AliITSsimulationSDD(seg1,res1);
 655         SetSimulationModel(1,sim1);
 656     }else{ // simulation exists, make sure it is set up properly.
 657         ((AliITSsimulationSDD*)sim)->Init(
 658             (AliITSsegmentationSDD*) iDetType->GetSegmentationModel(),
 659             (AliITSresponseSDD*) iDetType->GetResponseModel());
 660 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 661 //            (AliITSresponse*)iDetType->GetResponseModel());
 662 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 663 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 664     } //end if
 665     iDetType=DetType(2);
 666     sim = iDetType->GetSimulationModel();
 667     if (!sim) {
 668         AliITSsegmentation *seg2=
 669             (AliITSsegmentation*)iDetType->GetSegmentationModel();
 670         AliITSresponse *res2 = (AliITSresponse*)iDetType->GetResponseModel();
 671         AliITSsimulationSSD *sim2=new AliITSsimulationSSD(seg2,res2);
 672         SetSimulationModel(2,sim2);
 673     }else{ // simulation exists, make sure it is set up properly.
 674         ((AliITSsimulationSSD*)sim)->Init(
 675             (AliITSsegmentationSSD*) iDetType->GetSegmentationModel(),
 676             (AliITSresponseSSD*) iDetType->GetResponseModel());
 677 //        if(sim->GetResponseModel()==0) sim->SetResponseModel(
 678 //            (AliITSresponse*)iDetType->GetResponseModel());
 679 //        if(sim->GetSegmentationModel()==0) sim->SetSegmentationModel(
 680 //            (AliITSsegmentation*)iDetType->GetSegmentationModel());
 681     } // end if
 682 }
 683 //______________________________________________________________________
 684 void AliITSvSPD02::DrawModule() const {
 685     ////////////////////////////////////////////////////////////////////////
 686     //     Draw a shaded view of the ITS SPD test beam version 1.
 687     // Inputs:
 688     //    none.
 689     // Outputs:
 690     //    none.
 691     // Return:
 692     //    none.
 693     ////////////////////////////////////////////////////////////////////////
 694     // Set everything unseen
 695     gMC->Gsatt("*", "seen", -1);
 696     // Set ALIC mother visible
 697     gMC->Gsatt("ALIC","SEEN",0);
 698     // Set ALIC ITS visible
 699     gMC->Gsatt("ITSV","SEEN",0);
 700     // Set ALIC Telescopes visible
 701     gMC->Gsatt("ITEL","SEEN",0);
 702     // Set ALIC detetcor visible
 703     gMC->Gsatt("IDET","SEEN",0);
 704     // Set Detector chip mother visible and drawn
 705     gMC->Gsatt("IPC0","SEEN",1);
 706     // Set Detector mother visible and drawn
 707     gMC->Gsatt("ITS0","SEEN",1);
 708     // Set minibus chip mother visible and drawn
 709     gMC->Gsatt("ICMB","SEEN",1);
 710     // Set minibus mother visible and drawn
 711     gMC->Gsatt("IMB0","SEEN",1);
 712 }
 713 //______________________________________________________________________
 714 void AliITSvSPD02::StepManager(){
 715     ////////////////////////////////////////////////////////////////////////
 716     //    Called for every step in the ITS SPD test beam, then calles the
 717     // AliITShit class  creator with the information to be recoreded about
 718     //  that hit.
 719     //     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 720     // printing of information to a file which can be used to create a .det
 721     // file read in by the routine CreateGeometry(). If set to 0 or any other
 722     // value except 1, the default behavior, then no such file is created nor
 723     // it the extra variables and the like used in the printing allocated.
 724     // Inputs:
 725     //    none.
 726     // Outputs:
 727     //    none.
 728     // Return:
 729     //    none.
 730     ////////////////////////////////////////////////////////////////////////
 731     Int_t         copy, id;
 732     TLorentzVector position, momentum;
 733     static TLorentzVector position0;
 734     static Int_t stat0=0;
 735     if((id=gMC->CurrentVolID(copy) == fIDMother)&&
 736        (gMC->IsTrackEntering()||gMC->IsTrackExiting())){
 737         copy = fTrackReferences->GetEntriesFast();
 738         TClonesArray &lTR = *fTrackReferences;
 739         // Fill TrackReference structure with this new TrackReference.
 740         new(lTR[copy]) AliTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber());
 741     } // if Outer ITS mother Volume
 742     if(!(this->IsActive())){
 743         return;
 744     } // end if !Active volume.
 745     Int_t   vol[5];
 746     TClonesArray &lhits = *fHits;
 747     //
 748     // Track status
 749     vol[3] = 0;
 750     vol[4] = 0;
 751     if(gMC->IsTrackInside())      vol[3] +=  1;
 752     if(gMC->IsTrackEntering())    vol[3] +=  2;
 753     if(gMC->IsTrackExiting())     vol[3] +=  4;
 754     if(gMC->IsTrackOut())         vol[3] +=  8;
 755     if(gMC->IsTrackDisappeared()) vol[3] += 16;
 756     if(gMC->IsTrackStop())        vol[3] += 32;
 757     if(gMC->IsTrackAlive())       vol[3] += 64;
 758     //
 759     // Fill hit structure.
 760     if(!(gMC->TrackCharge())) return;
 761     id = gMC->CurrentVolID(copy);
 762     if(id==fIdSens[0]){  // Volume name "IMBS"
 763         vol[2] = vol[1] = 1; // Det, ladder
 764         id = gMC->CurrentVolOffID(2,copy);
 765         //detector copy in the ladder = 1<->4  (ITS1 < I101 < I103 < I10A)
 766         vol[0] = copy; // Lay
 767         if(copy>2) vol[0]++;
 768     } else if(id == fIdSens[1]){ // Volume name "ITST"
 769         vol[0] = 3; // layer
 770         vol[1] = 1; // ladder
 771         id = gMC->CurrentVolOffID(2,copy);
 772         //detector copy in the ladder = 1<->4  (ITS2 < I1D1 < I1D3 < I20A)
 773         vol[2] = 1;  // detector
 774     } else return; // end if
 775     //
 776     gMC->TrackPosition(position);
 777     gMC->TrackMomentum(momentum);
 778     vol[4] = stat0;
 779     if(gMC->IsTrackEntering()){
 780         position0 = position;
 781         stat0 = vol[3];
 782         return;
 783     } // end if IsEntering
 784     // Fill hit structure with this new hit only for non-entrerance hits.
 785     else new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,
 786                                         gMC->Edep(),gMC->TrackTime(),position,
 787                                         position0,momentum);
 788     //
 789     position0 = position;
 790     stat0 = vol[3];
 791
 792     return;
 793 }
 794