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 /*
  17 $Log$
  18 Revision 1.4  2003/04/08 08:16:50  morsch
  19 AliTrackReference constructor without passing pointer to VMC.
  20
  21 Revision 1.3  2003/03/21 14:34:10  nilsen
  22 Removed warning from part of code not properly implimneted yet.
  23
  24 Revision 1.2  2003/02/12 10:39:05  hristov
  25 Updated AliTrackReference class (S.Radomski)
  26
  27 Revision 1.1  2002/12/05 20:07:25  nilsen
  28 Adding new SPD 2002 test-beam geometry, with Config file (setup for testing,
  29 50 pions in one event and not 50 events with one pion).
  30
  31 */
  32 #include <Riostream.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <TMath.h>
  36 #include <TGeometry.h>
  37 #include <TNode.h>
  38 #include <TTUBE.h>
  39 #include <TTUBS.h>
  40 #include <TPCON.h>
  41 #include <TFile.h>    // only required for Tracking function?
  42 #include <TCanvas.h>
  43 #include <TObjArray.h>
  44 #include <TLorentzVector.h>
  45 #include <TObjString.h>
  46 #include <TClonesArray.h>
  47 #include <TBRIK.h>
  48 #include <TSystem.h>
  49
  50 #include "AliRun.h"
  51 #include "AliMagF.h"
  52 #include "AliConst.h"
  53 #include "AliITSGeant3Geometry.h"
  54 #include "AliTrackReference.h"
  55 #include "AliITShit.h"
  56 #include "AliITS.h"
  57 #include "AliITSvSPD02.h"
  58 #include "AliITSgeom.h"
  59 #include "AliITSgeomSPD.h"
  60 #include "AliITSgeomSDD.h"
  61 #include "AliITSgeomSSD.h"
  62 #include "AliITSDetType.h"
  63 #include "AliITSresponseSPD.h"
  64 #include "AliITSresponseSDD.h"
  65 #include "AliITSresponseSSD.h"
  66 #include "AliITSsegmentationSPD.h"
  67 #include "AliITSsegmentationSDD.h"
  68 #include "AliITSsegmentationSSD.h"
  69 #include "AliITSsimulationSPD.h"
  70 #include "AliITSsimulationSDD.h"
  71 #include "AliITSsimulationSSD.h"
  72 #include "AliITSClusterFinderSPD.h"
  73 #include "AliITSClusterFinderSDD.h"
  74 #include "AliITSClusterFinderSSD.h"
  75
  76
  77 ClassImp(AliITSvSPD02)
  78
  79 //______________________________________________________________________
  80 AliITSvSPD02::AliITSvSPD02() {
  81     ////////////////////////////////////////////////////////////////////////
  82     // Standard default constructor for the ITS SPD test beam 2002 version 1.
  83     // Inputs:
  84     //    none.
  85     // Outputs:
  86     //    none.
  87     // Return:
  88     //    A default created class.
  89     ////////////////////////////////////////////////////////////////////////
  90     Int_t i;
  91
  92     fIdN          = 0;
  93     fIdName       = 0;
  94     fIdSens       = 0;
  95     fEuclidOut    = kFALSE; // Don't write Euclide file
  96     fGeomDetOut   = kFALSE; // Don't write .det file
  97     fGeomDetIn    = kFALSE; // Don't Read .det file
  98     fMajorVersion = IsVersion();
  99     fMinorVersion = -1;
 100     for(i=0;i<60;i++) fRead[i] = '\0';
 101     for(i=0;i<60;i++) fWrite[i] = '\0';
 102     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
 103 }
 104 //______________________________________________________________________
 105 AliITSvSPD02::AliITSvSPD02(const char *title) : AliITS("ITS", title){
 106     ////////////////////////////////////////////////////////////////////////
 107     //    Standard constructor for the ITS SPD testbeam 2002 version 1.
 108     // Inputs:
 109     //    const char *title    title for this ITS geometry.
 110     // Outputs:
 111     //    none.
 112     // Return:
 113     //    A standard created class.
 114     ////////////////////////////////////////////////////////////////////////
 115     Int_t i;
 116
 117     fIdN = 2;
 118     fIdName = new TString[fIdN];
 119     fIdName[0] = "IMBS";
 120     fIdName[1] = "ITST";
 121     fIdSens    = new Int_t[fIdN];
 122     for(i=0;i<fIdN;i++) fIdSens[i] = 0;
 123     fMajorVersion = IsVersion();
 124     fMinorVersion = 2;
 125     fEuclidOut    = kFALSE; // Don't write Euclide file
 126     fGeomDetOut   = kFALSE; // Don't write .det file
 127     fGeomDetIn    = kFALSE; // Don't Read .det file
 128     SetThicknessDet1();
 129     SetThicknessDet2();
 130     SetThicknessChip1();
 131     SetThicknessChip2();
 132
 133     fEuclidGeometry="$ALICE_ROOT/ITS/ITSgeometry_vSPD022.euc";
 134     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_vSPD022.det",60);
 135     strncpy(fRead,fEuclidGeomDet,60);
 136     strncpy(fWrite,fEuclidGeomDet,60);
 137 }
 138 //______________________________________________________________________
 139 AliITSvSPD02::AliITSvSPD02(const AliITSvSPD02 &source){
 140     ////////////////////////////////////////////////////////////////////////
 141     //     Copy Constructor for ITS SPD test beam 2002 version 1.
 142     // This class is not to be copied. Function only dummy.
 143     // Inputs:
 144     //    const AliITSvSPD02 &source   The class to be copied
 145     // Outputs:
 146     //    none.
 147     // Return:
 148     //    A warning message.
 149     ////////////////////////////////////////////////////////////////////////
 150     if(&source == this) return;
 151     Warning("Copy Constructor","Not allowed to copy AliITSvSPD02");
 152     return;
 153 }
 154 //______________________________________________________________________
 155 AliITSvSPD02& AliITSvSPD02::operator=(const AliITSvSPD02 &source){
 156     ////////////////////////////////////////////////////////////////////////
 157     //    Assignment operator for the ITS SPD test beam 2002 version 1.
 158     // This class is not to be copied. Function only dummy.
 159     // Inputs:
 160     //    const AliITSvSPD02 &source   The class to be copied
 161     // Outputs:
 162     //    none.
 163     // Return:
 164     //    A Warning message
 165     ////////////////////////////////////////////////////////////////////////
 166     if(&source == this) return *this;
 167     Warning("= operator","Not allowed to copy AliITSvSPD02");
 168     return *this;
 169 }
 170 //______________________________________________________________________
 171 AliITSvSPD02::~AliITSvSPD02() {
 172     ////////////////////////////////////////////////////////////////////////
 173     //    Standard destructor for the ITS SPD test beam 2002 version 1.
 174     // Inputs:
 175     //    none.
 176     // Outputs:
 177     //    none.
 178     // Return:
 179     //    none.
 180     ////////////////////////////////////////////////////////////////////////
 181 }
 182 //______________________________________________________________________
 183 void AliITSvSPD02::BuildGeometry(){
 184     ////////////////////////////////////////////////////////////////////////
 185     //    Geometry builder for the ITS SPD test beam 2002 version 1.
 186     //    ALIC    ALICE Mother Volume
 187     //     |- ITSV     ITS Mother Volume
 188     //         |- IDET       Detector under Test
 189     //         |   |- ITS0       SPD Si Chip
 190     //         |   |  |- ITST      SPD Sensitivve Volume
 191     //         |   |- IPC0 *5    Readout chip
 192     //         |- ITEL *4    SPD Telescope
 193     //             |- IMB0       SPD Si Chip
 194     //             |   |- IMBS     SPD Sensitive volume
 195     //             |- ICMB       Chip MiniBus.
 196     // Inputs:
 197     //    none.
 198     // Outputs:
 199     //    none.
 200     // Return:
 201     //    none.
 202     ////////////////////////////////////////////////////////////////////////
 203     // Get the top alice volume.
 204     TNode *ALIC = gAlice->GetGeometry()->GetNode("alice");
 205     ALIC->cd();
 206
 207     // Define ITS Mother Volume
 208     Float_t data[3];
 209     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 210     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 211     //Float_t yposition= 0.0;
 212     TRotMatrix *r0 = new TRotMatrix("ITSidrotm0","ITSidrotm0",
 213                                     90.0,0,0.0,0,90.0,270.0);
 214     data[0] = 10.0;
 215     data[1] = 50.0;
 216     data[2] = 100.0;
 217     TBRIK *ITSVshape = new TBRIK("ITSVshape","ITS Logical Mother Volume","Air",
 218                                  data[0],data[1],data[2]);
 219     TNode *ITSV = new TNode("ITSV","ITS Mother Volume",ITSVshape,
 220                             0.0,0.0,0.0,0,0);
 221     ITSV->cd(); // set ourselve into ITSV subvolume of ALIC
 222
 223     // SPD part of telescope (MiniBuS)
 224     data[0] = 0.705;
 225     data[1] = 0.5*ddettelescope;
 226     data[2] = 3.536;
 227     TBRIK *IMB0shape = new TBRIK("IMB0shape","SPD wafer","Si",
 228                                  data[0],data[1],data[2]);
 229     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 230     data[0] = detMiniBusX = 0.64;
 231     data[1] = detMiniBusY = 0.5*ddettelescope;
 232     data[2] = detMiniBusZ = 3.48;
 233     TBRIK *IMBSshape = new TBRIK("IMBSshape","SPD Sensitive volume","Si",
 234                                  data[0],data[1],data[2]);
 235     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 236     data[0] = chipMiniBusX = 0.793;
 237     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 238     data[2] = chipMiniBusZ = 0.68;
 239     TBRIK *ICMBshape = new TBRIK("ICMBshape","chip Minibus","Si",
 240                                  data[0],data[1],data[2]);
 241     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 242     data[1] = detMiniBusY+chipMiniBusY;
 243     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 244     TBRIK *ITELshape = new TBRIK("ITELshape","ITELshape","Air",
 245                                  data[0],data[1],data[2]);
 246
 247     // SPD under test
 248     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 249     data[0] = 0.705;
 250     data[1] = ddettest;
 251     data[2] = 3.536;
 252     TBRIK *ITS0shape = new TBRIK("ITS0shape","SPD wafer","Si",
 253                                  data[0],data[1],data[2]); // contains detector
 254     data[0] = spdX = 0.64;
 255     data[1] = spdY = ddettest;
 256     data[2] = spdZ = 3.48;
 257     TBRIK *ITSTshape = new TBRIK("ITSTshape","SPD sensitive volume","Si",
 258                                  data[0],data[1],data[2]);
 259     // ITS0 with no translation and unit rotation matrix.
 260     data[0] = spdchipX = 0.793;
 261     data[1] = spdchipY = dchiptest;
 262     data[2] = spdchipZ = 0.68;
 263     TBRIK *IPC0shape = new TBRIK("IPC0shape","Readout Chips","Si",
 264                                  data[0],data[1],data[2]); // chip under test
 265     data[0] = TMath::Max(spdchipX,spdX);
 266     data[1] = spdY+spdchipY;
 267     data[2] = TMath::Max(spdchipZ,spdZ);
 268     TBRIK *IDETshape = new TBRIK("IDETshape","Detector Under Test","Air",
 269                                  data[0],data[1],data[2]);
 270     // Place volumes in geometry
 271     Int_t i,j;
 272     char name[20],title[50];
 273     Double_t px=0.0,py=0.0,pz[4]={-38.0,0.0,0.0,0.0};
 274     pz[1] = pz[0]+2.0;
 275     pz[2] = pz[1]+38.0+spdY+spdchipY+34.5;
 276     pz[3] = pz[2]+2.0;
 277     TNode *ITEL[4],*ICMB[4],*IMB0[4],*IMBS[4];
 278     TNode *IDET = new TNode("IDET","Detector Under Test",IDETshape,
 279                             0.0,0.0,pz[1]+38.0,r0,0);
 280     IDET->cd();
 281     TNode *ITS0 = new TNode("ITS0","SPD Chip",ITS0shape,
 282                             0.0,IDETshape->GetDy()-spdY,0.0,0,0);
 283     TNode *IPC0[5];
 284     for(i=0;i<5;i++) { //place readout chips on the back of SPD chip under test
 285         sprintf(name,"IPC0%d",i);
 286         sprintf(title,"Readout chip #%d",i+1);
 287         j = i-2;
 288         IPC0[i] = new TNode(name,title,IPC0shape,
 289                             0.0,spdchipY-IDETshape->GetDy(),
 290                             j*2.0*spdchipZ+j*0.25*(spdZ-5.*spdchipZ),0,0);
 291     } // end for i
 292     ITS0->cd();
 293     TNode *ITST = new TNode("ITST","SPD sensitive volume",ITSTshape,
 294                             0.0,0.0,0.0,0,0);
 295     for(Int_t i=0;i<4;i++){
 296         ITSV->cd();
 297         sprintf(name,"ITEL%d",i);
 298         sprintf(title,"Test beam telescope element #%d",i+1);
 299         ITEL[i] = new TNode(name,title,ITELshape,px,py,pz[i],r0,0);
 300         ITEL[i]->cd();
 301         ICMB[i] = new TNode("ICMB","Chip MiniBus",ICMBshape,
 302                             0.0,-ITELshape->GetDy()+detMiniBusY,0.0,0,0);
 303         IMB0[i] = new TNode("IMB0","Chip MiniBus",IMB0shape,
 304                             0.0, ITELshape->GetDy()-detMiniBusY,0.0,0,0);
 305         IMB0[i]->cd();
 306         IMBS[i] = new TNode("IMBS","IMBS",IMBSshape,0.0,0.0,0.0,0,0);
 307         // place IMBS inside IMB0 with no translation and unit rotation matrix.
 308     } // end for i
 309     ALIC->cd();
 310     ITST->SetLineColor(kYellow);
 311     fNodes->Add(ITST);
 312     for(i=0;i<4;i++){
 313         IMBS[i]->SetLineColor(kGreen);
 314         fNodes->Add(IMBS[i]);
 315     } // end for i
 316 }
 317 //______________________________________________________________________
 318 void AliITSvSPD02::CreateGeometry(){
 319     ////////////////////////////////////////////////////////////////////////
 320     //  This routine defines and Creates the geometry for version 1 of the ITS.
 321     //    ALIC    ALICE Mother Volume
 322     //     |- ITSV     ITS Mother Volume
 323     //         |- IDET       Detector under Test
 324     //         |   |- ITS0       SPD Si Chip
 325     //         |   |  |- ITST      SPD Sensitivve Volume
 326     //         |   |- IPC0 *5    Readout chip
 327     //         |- ITEL *4    SPD Telescope
 328     //             |- IMB0       SPD Si Chip
 329     //             |   |- IMBS     SPD Sensitive volume
 330     //             |- ICMB       Chip MiniBus.
 331     // Inputs:
 332     //    none.
 333     // Outputs:
 334     //    none.
 335     // Return:
 336     //    none.
 337     ////////////////////////////////////////////////////////////////////////
 338     Float_t data[49];
 339     // Define media off-set
 340     Int_t *idtmed = fIdtmed->GetArray()+1; // array of media indexes
 341     Int_t idrotm[4]; // Array of rotation matrix indexes
 342     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 343     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 344     Float_t yposition= 0.0;
 345
 346     // Define Rotation-reflextion Matrixes needed
 347     // 0 is the unit matrix
 348     AliMatrix(idrotm[0], 90.0,0.0, 0.0,0.0, 90.0,270.0);
 349     data[0] = 10.0;
 350     data[1] = 50.0;
 351     data[2] = 100.0;
 352     gMC->Gsvolu("ITSV","BOX",idtmed[0],data,3);
 353     gMC->Gspos("ITSV",1,"ALIC",0.0,0.0,0.0,0,"ONLY");
 354
 355     //cout << "idtmed[0]=" << idtmed[0]<<endl;
 356     //cout << "idtmed[1]=" << idtmed[1]<<endl;
 357     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 358     // SPD part of telescope (MiniBuS)
 359     data[0] = detMiniBusX = 0.705;
 360     data[1] = detMiniBusY = 0.5*ddettelescope;
 361     data[2] = detMiniBusZ = 3.536;
 362     gMC->Gsvolu("IMB0", "BOX ", idtmed[1], data, 3);   // contains detector
 363     data[0] = 0.64;
 364     data[1] = 0.5*ddettelescope;
 365     data[2] = 3.48;
 366     gMC->Gsvolu("IMBS","BOX ",idtmed[1],data,3); // sensitive detecor volulme
 367     gMC->Gspos("IMBS",1,"IMB0",0.0,0.0,0.0,0,"ONLY"); // place IMBS inside
 368     // IMB0 with no translation and unit rotation matrix.
 369     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 370     data[0] = chipMiniBusX = 0.793;
 371     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 372     data[2] = chipMiniBusZ = 0.68;
 373     gMC->Gsvolu("ICMB","BOX ",idtmed[1],data, 3);   // chip Minibus
 374     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 375     data[1] = detMiniBusY+chipMiniBusY;
 376     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 377     gMC->Gsvolu("ITEL","BOX ",idtmed[0],data,3);
 378     gMC->Gspos("IMB0",1,"ITEL",0.0,data[1]-detMiniBusY,0.0,0,"ONLY");
 379     gMC->Gspos("ICMB",1,"ITEL",0.0,-data[1]+chipMiniBusY,0.0,0,"ONLY");
 380
 381     // SPD under test
 382     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 383     data[0] = spdX = 0.705;
 384     data[1] = spdY = 0.5*ddettest;
 385     data[2] = spdZ = 3.536;
 386     gMC->Gsvolu("ITS0", "BOX ", idtmed[1], data, 3);   // contains detector
 387     data[0] = 0.64;
 388     data[1] = 0.5*ddettest;
 389     data[2] = 3.48;
 390     gMC->Gsvolu("ITST","BOX ",idtmed[1],data,3);// sensitive detecor volume
 391     gMC->Gspos("ITST",1,"ITS0",0.0,0.0,0.0,0,"ONLY"); // place ITST inside
 392     // ITS0 with no translation and unit rotation matrix.
 393     data[0] = spdchipX = 0.793;
 394     data[1] = spdchipY = 0.5*dchiptest;
 395     data[2] = spdchipZ = 0.68;
 396     gMC->Gsvolu("IPC0", "BOX ", idtmed[1],data,3);   // chip under test
 397     data[0] = TMath::Max(spdchipX,spdX);
 398     data[1] = spdY+spdchipY;
 399     data[2] = TMath::Max(spdchipZ,spdZ);
 400     gMC->Gsvolu("IDET","BOX ",idtmed[0],data,3);
 401     gMC->Gspos("ITS0",1,"IDET",0.0,data[1]-spdY,0.0,0,"ONLY");
 402     for(Int_t i=-2;i<3;i++) gMC->Gspos("IPC0",i+3,"IDET",0.0,-data[1]+spdchipY,
 403               i*2.*spdchipZ+i*0.25*(spdZ-5.*spdchipZ),0,"ONLY");
 404
 405     // Positions detectors, Beam Axis Z, X to the right, Y up to the sky.
 406     Float_t p00X,p00Y,p00Z,p01X,p01Y,p01Z,p10X,p10Y,p10Z,p11X,p11Y,p11Z;
 407     p00X = 0.0;
 408     p00Y = 0.0;
 409     p00Z = -38.0;
 410     gMC->Gspos("ITEL",1,"ITSV",p00X,p00Y,p00Z,idrotm[0],"ONLY");
 411     p01X = 0.0;
 412     p01Y = 0.0;
 413     p01Z = p00Z+2.0;
 414     gMC->Gspos("ITEL",2,"ITSV",p01X,p01Y,p01Z,idrotm[0],"ONLY");
 415     Float_t pdetX,pdetY,pdetZ;
 416     pdetX = 0.0;
 417     pdetY = 0.0+yposition;
 418     pdetZ = p01Z+38.0;
 419     gMC->Gspos("IDET",1,"ITSV",pdetX,pdetY,pdetZ,idrotm[0],"ONLY");
 420     p10X = 0.0;
 421     p10Y = 0.0;
 422     p10Z = pdetZ + 34.5;
 423     gMC->Gspos("ITEL",3,"ITSV",p10X,p10Y,p10Z,idrotm[0],"ONLY");
 424     p11X = 0.0;
 425     p11Y = 0.0;
 426     p11Z = p10Z+2.0;
 427     gMC->Gspos("ITEL",4,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");
 428 }
 429 //______________________________________________________________________
 430 void AliITSvSPD02::CreateMaterials(){
 431     ////////////////////////////////////////////////////////////////////////
 432     //
 433     // Create ITS SPD test beam materials
 434     //     This function defines the default materials used in the Geant
 435     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 436     // AliITSvSPD02.
 437     // In general it is automatically replaced by
 438     // the CreatMaterials routine defined in AliITSv?. Should the function
 439     // CreateMaterials not exist for the geometry version you are using this
 440     // one is used. See the definition found in AliITSv5 or the other routine
 441     // for a complete definition.
 442     //
 443     // Inputs:
 444     //    none.
 445     // Outputs:
 446     //    none.
 447     // Return:
 448     //    none.
 449     /////////////////////////////////////////////////////////////////////////
 450     Float_t tmaxfdSi = 0.1; // Degree
 451     Float_t stemaxSi = 0.0075; // cm
 452     Float_t deemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
 453     Float_t epsilSi  = 1.0E-4;//
 454     Float_t stminSi  = 0.0; // cm "Default value used"
 455
 456     Float_t tmaxfdAir = 0.1; // Degree
 457     Float_t stemaxAir = .10000E+01; // cm
 458     Float_t deemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
 459     Float_t epsilAir  = 1.0E-4;//
 460     Float_t stminAir  = 0.0; // cm "Default value used"
 461     Int_t   ifield = gAlice->Field()->Integ();
 462     Float_t fieldm = gAlice->Field()->Max();
 463
 464     AliMaterial(1,"AIR$",0.14610E+02,0.73000E+01,0.12050E-02,
 465                 0.30423E+05,0.99900E+03);
 466     AliMedium(1,"AIR$",1,0,ifield,fieldm,tmaxfdAir,stemaxAir,deemaxAir,
 467               epsilAir,stminAir);
 468
 469     AliMaterial(2,"SI$",0.28086E+02,0.14000E+02,0.23300E+01,
 470                 0.93600E+01,0.99900E+03);
 471     AliMedium(2,"SI$",2,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 472               epsilSi,stminSi);
 473 }
 474 //______________________________________________________________________
 475 void AliITSvSPD02::InitAliITSgeom(){
 476     //     Based on the geometry tree defined in Geant 3.21, this
 477     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 478     // sturture.
 479     // Inputs:
 480     //    none.
 481     // Outputs:
 482     //    none.
 483     // Return:
 484     //    none.
 485     if(strcmp(gMC->GetName(),"TGeant3")) {
 486         Error("InitAliITSgeom",
 487                 "Wrong Monte Carlo. InitAliITSgeom uses TGeant3 calls");
 488         return;
 489     } // end if
 490     cout << "Reading Geometry transformation directly from Geant 3." << endl;
 491     const Int_t ltypess = 2;
 492     const Int_t nlayers = 5;
 493     const Int_t ndeep = 5;
 494     Int_t itsGeomTreeNames[ltypess][ndeep],lnam[20],lnum[20];
 495     Int_t nlad[nlayers],ndet[nlayers];
 496     Double_t t[3],r[10];
 497     Float_t  par[20],att[20];
 498     Int_t    npar,natt,idshape,imat,imed;
 499     AliITSGeant3Geometry *ig = new AliITSGeant3Geometry();
 500     Int_t mod,typ,lay,lad,det,cpy,i,j,k;
 501     Char_t names[ltypess][ndeep][4];
 502     Int_t itsGeomTreeCopys[ltypess][ndeep];
 503     Char_t *namesA[ltypess][ndeep] = {
 504      {"ALIC","ITSV","ITEL","IMB0","IMBS"}, // lay=1
 505      {"ALIC","ITSV","IDET","ITS0","ITST"}};// Test SPD
 506     Int_t itsGeomTreeCopysA[ltypess][ndeep]= {{1,1,4,1,1},// lay=1
 507                                               {1,1,1,1,1}};//lay=2 TestSPD
 508     for(i=0;i<ltypess;i++)for(j=0;j<ndeep;j++){
 509         for(k=0;k<4;k++) names[i][j][k] = namesA[i][j][k];
 510         itsGeomTreeCopys[i][j] = itsGeomTreeCopysA[i][j];
 511     } // end for i,j
 512     // Sorry, but this is not very pritty code. It should be replaced
 513     // at some point with a version that can search through the geometry
 514     // tree its self.
 515     cout << "Reading Geometry informaton from Geant3 common blocks" << endl;
 516     for(i=0;i<20;i++) lnam[i] = lnum[i] = 0;
 517     for(i=0;i<ltypess;i++)for(j=0;j<ndeep;j++)
 518         itsGeomTreeNames[i][j] = ig->StringToInt(names[i][j]);
 519     mod = 5;
 520
 521     if(fITSgeom!=0) delete fITSgeom;
 522     nlad[0]=1;nlad[1]=1;nlad[2]=1;nlad[3]=1;nlad[4]=1;
 523     ndet[0]=1;ndet[1]=1;ndet[2]=1;ndet[3]=1;ndet[4]=1;
 524     fITSgeom = new AliITSgeom(0,nlayers,nlad,ndet,mod);
 525     for(typ=1;typ<=ltypess;typ++){
 526         for(j=0;j<ndeep;j++) lnam[j] = itsGeomTreeNames[typ-1][j];
 527         for(j=0;j<ndeep;j++) lnum[j] = itsGeomTreeCopys[typ-1][j];
 528         lad = 1;
 529         det = 1;
 530         for(cpy=1;cpy<=itsGeomTreeCopys[typ-1][2];cpy++){
 531             lnum[2] = cpy;
 532             lay = cpy;
 533             if(cpy>2 && typ==1) lay = cpy +1;
 534             if(typ==2) lay = 3;
 535             mod = lay-1;
 536             ig->GetGeometry(ndeep,lnam,lnum,t,r,idshape,npar,natt,par,att,
 537                             imat,imed);
 538             fITSgeom->CreatMatrix(mod,lay,lad,det,kSPD,t,r);
 539             if(!(fITSgeom->IsShapeDefined((Int_t)kSPD)))
 540                 fITSgeom->ReSetShape(kSPD,
 541                                      new AliITSgeomSPD425Short(npar,par));
 542         } // end for cpy
 543     } // end for typ
 544     return;
 545 }
 546 //______________________________________________________________________
 547 void AliITSvSPD02::Init(){
 548     ////////////////////////////////////////////////////////////////////////
 549     //     Initialise the ITS after it has been created.
 550     // Inputs:
 551     //    none.
 552     // Outputs:
 553     //    none.
 554     // Return:
 555     //    none.
 556     ////////////////////////////////////////////////////////////////////////
 557     Int_t i;
 558
 559     cout << endl;
 560     for(i=0;i<26;i++) cout << "*";
 561     cout << " ITSvSPD02" << fMinorVersion << "_Init ";
 562     for(i=0;i<25;i++) cout << "*";cout << endl;
 563 //
 564     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 565     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 566     if(fITSgeom!=0) delete fITSgeom;
 567     fITSgeom = new AliITSgeom();
 568     if(fGeomDetIn) fITSgeom->ReadNewFile(fRead);
 569     if(!fGeomDetIn) this->InitAliITSgeom();
 570     if(fGeomDetOut) fITSgeom->WriteNewFile(fWrite);
 571     AliITS::Init();
 572 //
 573     for(i=0;i<72;i++) cout << "*";
 574     cout << endl;
 575     fIDMother = gMC->VolId("ITSV"); // ITS Mother Volume ID.
 576 }
 577 //______________________________________________________________________
 578 void AliITSvSPD02::SetDefaults(){
 579     // sets the default segmentation, response, digit and raw cluster classes
 580     // Inputs:
 581     //    none.
 582     // Outputs:
 583     //    none.
 584     // Return:
 585     //    none.
 586     const Float_t kconv = 1.0e+04; // convert cm to microns
 587
 588     Info("SetDefaults","Setting up only SPD detector");
 589
 590     AliITSDetType *iDetType;
 591     AliITSgeomSPD  *s0;
 592     Int_t i;
 593     Float_t bx[256],bz[280];
 594
 595     //SPD
 596     iDetType=DetType(kSPD);
 597     s0 = (AliITSgeomSPD*) fITSgeom->GetShape(kSPD);// Get shape info. Do it this way for now.
 598     AliITSresponse *resp0=new AliITSresponseSPD();
 599     SetResponseModel(kSPD,resp0);
 600     AliITSsegmentationSPD *seg0=new AliITSsegmentationSPD(fITSgeom);
 601     seg0->SetDetSize(s0->GetDx()*2.*kconv, // base this on AliITSgeomSPD
 602                      s0->GetDz()*2.*kconv, // for now.
 603                      s0->GetDy()*2.*kconv); // x,z,y full width in microns.
 604     seg0->SetNPads(256,160);// Number of Bins in x and z
 605     for(i=000;i<256;i++) bx[i] =  50.0; // in x all are 50 microns.
 606     for(i=000;i<160;i++) bz[i] = 425.0; // most are 425 microns except below
 607     for(i=160;i<280;i++) bz[i] =   0.0; // Outside of detector.
 608     bz[ 31] = bz[ 32] = 625.0; // first chip boundry
 609     bz[ 63] = bz[ 64] = 625.0; // first chip boundry
 610     bz[ 95] = bz[ 96] = 625.0; // first chip boundry
 611     bz[127] = bz[128] = 625.0; // first chip boundry
 612     bz[160] = 425.0; // Set so that there is no zero pixel size for fNz.
 613     seg0->SetBinSize(bx,bz); // Based on AliITSgeomSPD for now.
 614     SetSegmentationModel(kSPD,seg0);
 615     // set digit and raw cluster classes to be used
 616     const char *kData0=(iDetType->GetResponseModel())->DataType();
 617     if (strstr(kData0,"real")) iDetType->ClassNames("AliITSdigit",
 618                                                     "AliITSRawClusterSPD");
 619     else iDetType->ClassNames("AliITSdigitSPD","AliITSRawClusterSPD");
 620 //    SetSimulationModel(kSPD,new AliITSsimulationSPD(seg0,resp0));
 621 //    iDetType->ReconstructionModel(new AliITSClusterFinderSPD());
 622
 623     SetResponseModel(kSDD,new AliITSresponseSDD());
 624     SetSegmentationModel(kSDD,new AliITSsegmentationSDD());
 625     DetType(kSDD)->ClassNames("AliITSdigitSDD","AliITSRawClusterSDD");
 626
 627     SetResponseModel(kSSD,new AliITSresponseSSD());
 628     SetSegmentationModel(kSSD,new AliITSsegmentationSSD());
 629     DetType(kSSD)->ClassNames("AliITSdigitSSD","AliITSRawClusterSSD");
 630
 631     if(kNTYPES>3){
 632         Warning("SetDefaults",
 633                 "Only the four basic detector types are initialised!");
 634     }// end if
 635     return;
 636 }
 637 //______________________________________________________________________
 638 void AliITSvSPD02::DrawModule(){
 639     ////////////////////////////////////////////////////////////////////////
 640     //     Draw a shaded view of the ITS SPD test beam version 1.
 641     // Inputs:
 642     //    none.
 643     // Outputs:
 644     //    none.
 645     // Return:
 646     //    none.
 647     ////////////////////////////////////////////////////////////////////////
 648     // Set everything unseen
 649     gMC->Gsatt("*", "seen", -1);
 650     // Set ALIC mother visible
 651     gMC->Gsatt("ALIC","SEEN",0);
 652     // Set ALIC ITS visible
 653     gMC->Gsatt("ITSV","SEEN",0);
 654     // Set ALIC Telescopes visible
 655     gMC->Gsatt("ITEL","SEEN",0);
 656     // Set ALIC detetcor visible
 657     gMC->Gsatt("IDET","SEEN",0);
 658     // Set Detector chip mother visible and drawn
 659     gMC->Gsatt("IPC0","SEEN",1);
 660     // Set Detector mother visible and drawn
 661     gMC->Gsatt("ITS0","SEEN",1);
 662     // Set minibus chip mother visible and drawn
 663     gMC->Gsatt("ICMB","SEEN",1);
 664     // Set minibus mother visible and drawn
 665     gMC->Gsatt("IMB0","SEEN",1);
 666 }
 667 //______________________________________________________________________
 668 void AliITSvSPD02::StepManager(){
 669     ////////////////////////////////////////////////////////////////////////
 670     //    Called for every step in the ITS SPD test beam, then calles the
 671     // AliITShit class  creator with the information to be recoreded about
 672     //  that hit.
 673     //     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 674     // printing of information to a file which can be used to create a .det
 675     // file read in by the routine CreateGeometry(). If set to 0 or any other
 676     // value except 1, the default behavior, then no such file is created nor
 677     // it the extra variables and the like used in the printing allocated.
 678     // Inputs:
 679     //    none.
 680     // Outputs:
 681     //    none.
 682     // Return:
 683     //    none.
 684     ////////////////////////////////////////////////////////////////////////
 685     Int_t         copy, id;
 686     TLorentzVector position, momentum;
 687     static TLorentzVector position0;
 688     static Int_t stat0=0;
 689     if((id=gMC->CurrentVolID(copy) == fIDMother)&&
 690        (gMC->IsTrackEntering()||gMC->IsTrackExiting())){
 691         copy = fTrackReferences->GetEntriesFast();
 692         TClonesArray &lTR = *fTrackReferences;
 693         // Fill TrackReference structure with this new TrackReference.
 694         new(lTR[copy]) AliTrackReference(gAlice->CurrentTrack());
 695     } // if Outer ITS mother Volume
 696     if(!(this->IsActive())){
 697         return;
 698     } // end if !Active volume.
 699     Int_t   vol[5];
 700     TClonesArray &lhits = *fHits;
 701     //
 702     // Track status
 703     vol[3] = 0;
 704     vol[4] = 0;
 705     if(gMC->IsTrackInside())      vol[3] +=  1;
 706     if(gMC->IsTrackEntering())    vol[3] +=  2;
 707     if(gMC->IsTrackExiting())     vol[3] +=  4;
 708     if(gMC->IsTrackOut())         vol[3] +=  8;
 709     if(gMC->IsTrackDisappeared()) vol[3] += 16;
 710     if(gMC->IsTrackStop())        vol[3] += 32;
 711     if(gMC->IsTrackAlive())       vol[3] += 64;
 712     //
 713     // Fill hit structure.
 714     if(!(gMC->TrackCharge())) return;
 715     id = gMC->CurrentVolID(copy);
 716     if(id==fIdSens[0]){  // Volume name "IMBS"
 717         vol[2] = vol[1] = 1; // Det, ladder
 718         id = gMC->CurrentVolOffID(2,copy);
 719         //detector copy in the ladder = 1<->4  (ITS1 < I101 < I103 < I10A)
 720         vol[0] = copy; // Lay
 721         if(copy>2) vol[0]++;
 722     } else if(id == fIdSens[1]){ // Volume name "ITST"
 723         vol[0] = 3; // layer
 724         vol[1] = 1; // ladder
 725         id = gMC->CurrentVolOffID(2,copy);
 726         //detector copy in the ladder = 1<->4  (ITS2 < I1D1 < I1D3 < I20A)
 727         vol[2] = 1;  // detector
 728     } else return; // end if
 729     //
 730     gMC->TrackPosition(position);
 731     gMC->TrackMomentum(momentum);
 732     vol[4] = stat0;
 733     if(gMC->IsTrackEntering()){
 734         position0 = position;
 735         stat0 = vol[3];
 736     } // end if IsEntering
 737     // Fill hit structure with this new hit only for non-entrerance hits.
 738     else new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,
 739                                         gMC->Edep(),gMC->TrackTime(),position,
 740                                         position0,momentum);
 741     //
 742     position0 = position;
 743     stat0 = vol[3];
 744
 745     return;
 746 }
 747