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