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 <TGeometry.h>
  19 #include <TNode.h>
  20 #include <TLorentzVector.h>
  21 #include <TClonesArray.h>
  22 #include <TBRIK.h>
  23 #include <TGeoMatrix.h>
  24 #include <TVirtualMC.h>
  25
  26 #include "AliRun.h"
  27 #include "AliMagF.h"
  28 #include "AliTrackReference.h"
  29
  30 #include "AliITShit.h"
  31 #include "AliITS.h"
  32 #include "AliITSvSPD02.h"
  33 #include "AliITSgeom.h"
  34 #include "AliITSgeomSPD.h"
  35 #include "AliITSDetTypeSim.h"
  36 #include "AliITSCalibrationSPD.h"
  37 #include "AliITSsegmentationSPD.h"
  38 #include "AliITSsimulationSPD.h"
  39 #include "AliMC.h"
  40
  41
  42 ///////////////////////////////////////////////////////////////////////
  43 // Step manager and
  44 // geometry class
  45 // for the ITS
  46 // SPD test beam
  47 // geometry of summer 2002
  48 //
  49 ///////////////////////////////////////////////////////////////////////
  50 ClassImp(AliITSvSPD02)
  51
  52 //______________________________________________________________________
  53 AliITSvSPD02::AliITSvSPD02():
  54 AliITS(),
  55 fGeomDetOut(kFALSE),
  56 fGeomDetIn(kFALSE),
  57 fMajorVersion(1),
  58 fMinorVersion(2),
  59 fGeomNumber(2002),
  60 fEuclidGeomDet(),
  61 fRead(),
  62 fWrite(),
  63 fDet1(300.0),
  64 fDet2(300.0),
  65 fChip1(300.0),
  66 fChip2(300.0){
  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     for(i=0;i<60;i++) fRead[i] = '\0';
  79     for(i=0;i<60;i++) fWrite[i] = '\0';
  80     for(i=0;i<60;i++) fEuclidGeomDet[i] = '\0';
  81 }
  82 //______________________________________________________________________
  83 AliITSvSPD02::AliITSvSPD02(const char *title,Int_t gn) : AliITS("ITS", title),
  84 fGeomDetOut(kFALSE),
  85 fGeomDetIn(kFALSE),
  86 fMajorVersion(1),
  87 fMinorVersion(2),
  88 fGeomNumber(2002),
  89 fEuclidGeomDet(),
  90 fRead(),
  91 fWrite(),
  92 fDet1(300.0),
  93 fDet2(300.0),
  94 fChip1(300.0),
  95 fChip2(300.0){
  96     ////////////////////////////////////////////////////////////////////////
  97     //    Standard constructor for the ITS SPD testbeam 2002 version 1.
  98     // Inputs:
  99     //    const char *title    title for this ITS geometry.
 100     //    Int_t      gn        Geometry version number (year) default 2002.
 101     // Outputs:
 102     //    none.
 103     // Return:
 104     //    A standard created class.
 105     ////////////////////////////////////////////////////////////////////////
 106     Int_t i;
 107
 108     fGeomNumber = gn;
 109     fIdN = 2;
 110     fIdName = new TString[fIdN];
 111     fIdName[0] = "IMBS";
 112     fIdName[1] = "ITST";
 113     fIdSens    = new Int_t[fIdN];
 114     for(i=0;i<fIdN;i++) fIdSens[i] = 0;
 115     SetThicknessDet1();
 116     SetThicknessDet2();
 117     SetThicknessChip1();
 118     SetThicknessChip2();
 119
 120     fEuclidGeometry="$ALICE_ROOT/ITS/ITSgeometry_vSPD022.euc";
 121     strncpy(fEuclidGeomDet,"$ALICE_ROOT/ITS/ITSgeometry_vSPD022.det",60);
 122     strncpy(fRead,fEuclidGeomDet,60);
 123     strncpy(fWrite,fEuclidGeomDet,60);
 124 }
 125 //______________________________________________________________________
 126 AliITSvSPD02::~AliITSvSPD02() {
 127     ////////////////////////////////////////////////////////////////////////
 128     //    Standard destructor for the ITS SPD test beam 2002 version 1.
 129     // Inputs:
 130     //    none.
 131     // Outputs:
 132     //    none.
 133     // Return:
 134     //    none.
 135     ////////////////////////////////////////////////////////////////////////
 136 }
 137 //______________________________________________________________________
 138 void AliITSvSPD02::BuildGeometry(){
 139     ////////////////////////////////////////////////////////////////////////
 140     //    Geometry builder for the ITS SPD test beam 2002 version 1.
 141     //    ALIC    ALICE Mother Volume
 142     //     |- ITSV     ITS Mother Volume
 143     //         |- IDET       Detector under Test
 144     //         |   |- ITS0       SPD Si Chip
 145     //         |   |  |- ITST      SPD Sensitivve Volume
 146     //         |   |- IPC0 *5    Readout chip
 147     //         |- ITEL *4    SPD Telescope
 148     //             |- IMB0       SPD Si Chip
 149     //             |   |- IMBS     SPD Sensitive volume
 150     //             |- ICMB       Chip MiniBus.
 151     // Inputs:
 152     //    none.
 153     // Outputs:
 154     //    none.
 155     // Return:
 156     //    none.
 157     ////////////////////////////////////////////////////////////////////////
 158     // Get the top alice volume.
 159
 160     switch (fGeomNumber){
 161     case 2002:
 162         BuildGeometry2002();
 163         break;
 164     default:
 165         BuildGeometry2002();
 166         break;
 167     } // end switch
 168 }
 169 //______________________________________________________________________
 170 void AliITSvSPD02::BuildGeometry2002(){
 171     ////////////////////////////////////////////////////////////////////////
 172     //    Geometry builder for the ITS SPD test beam 2002 version 1.
 173     //    ALIC    ALICE Mother Volume
 174     //     |- ITSV     ITS Mother Volume
 175     //         |- IDET       Detector under Test
 176     //         |   |- ITS0       SPD Si Chip
 177     //         |   |  |- ITST      SPD Sensitivve Volume
 178     //         |   |- IPC0 *5    Readout chip
 179     //         |- ITEL *4    SPD Telescope
 180     //             |- IMB0       SPD Si Chip
 181     //             |   |- IMBS     SPD Sensitive volume
 182     //             |- ICMB       Chip MiniBus.
 183     // Inputs:
 184     //    none.
 185     // Outputs:
 186     //    none.
 187     // Return:
 188     //    none.
 189     ////////////////////////////////////////////////////////////////////////
 190     // Get the top alice volume.
 191     TNode *aALIC = gAlice->GetGeometry()->GetNode("alice");
 192     aALIC->cd();
 193
 194     // Define ITS Mother Volume
 195     Float_t data[3];
 196     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 197     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 198     //Float_t yposition= 0.0;
 199     TRotMatrix *r0 = new TRotMatrix("ITSidrotm0","ITSidrotm0",
 200                                     90.0,0,0.0,0,90.0,270.0);
 201     data[0] = 10.0;
 202     data[1] = 50.0;
 203     data[2] = 100.0;
 204     TBRIK *iITSVshape = new TBRIK("ITSVshape",
 205                                   "ITS Logical Mother Volume","Air",
 206                                   data[0],data[1],data[2]);
 207     TNode *iITSV = new TNode("ITSV","ITS Mother Volume",iITSVshape,
 208                              0.0,0.0,0.0,0,0);
 209     iITSV->cd(); // set ourselve into ITSV subvolume of aALIC
 210
 211     // SPD part of telescope (MiniBuS)
 212     data[0] = 0.705;
 213     data[1] = 0.5*ddettelescope;
 214     data[2] = 3.536;
 215     TBRIK *iIMB0shape = new TBRIK("IMB0shape","SPD wafer","Si",
 216                                  data[0],data[1],data[2]);
 217     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 218     data[0] = detMiniBusX = 0.64;
 219     data[1] = detMiniBusY = 0.5*ddettelescope;
 220     data[2] = detMiniBusZ = 3.48;
 221     TBRIK *iIMBSshape = new TBRIK("IMBSshape","SPD Sensitive volume","Si",
 222                                  data[0],data[1],data[2]);
 223     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 224     data[0] = chipMiniBusX = 0.793;
 225     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 226     data[2] = chipMiniBusZ = 0.68;
 227     TBRIK *iICMBshape = new TBRIK("ICMBshape","chip Minibus","Si",
 228                                  data[0],data[1],data[2]);
 229     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 230     data[1] = detMiniBusY+chipMiniBusY;
 231     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 232     TBRIK *iITELshape = new TBRIK("ITELshape","ITELshape","Air",
 233                                  data[0],data[1],data[2]);
 234
 235     // SPD under test
 236     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 237     data[0] = 0.705;
 238     data[1] = ddettest;
 239     data[2] = 3.536;
 240     TBRIK *iITS0shape = new TBRIK("ITS0shape","SPD wafer","Si",
 241                                  data[0],data[1],data[2]); // contains detector
 242     data[0] = spdX = 0.64;
 243     data[1] = spdY = ddettest;
 244     data[2] = spdZ = 3.48;
 245     TBRIK *iITSTshape = new TBRIK("ITSTshape","SPD sensitive volume","Si",
 246                                  data[0],data[1],data[2]);
 247     // ITS0 with no translation and unit rotation matrix.
 248     data[0] = spdchipX = 0.793;
 249     data[1] = spdchipY = dchiptest;
 250     data[2] = spdchipZ = 0.68;
 251     TBRIK *iIPC0shape = new TBRIK("IPC0shape","Readout Chips","Si",
 252                                  data[0],data[1],data[2]); // chip under test
 253     data[0] = TMath::Max(spdchipX,spdX);
 254     data[1] = spdY+spdchipY;
 255     data[2] = TMath::Max(spdchipZ,spdZ);
 256     TBRIK *iIDETshape = new TBRIK("IDETshape","Detector Under Test","Air",
 257                                  data[0],data[1],data[2]);
 258     // Place volumes in geometry
 259     Int_t i,j;
 260     char name[20],title[50];
 261     Double_t px=0.0,py=0.0,pz[4]={-38.0,0.0,0.0,0.0};
 262     pz[1] = pz[0]+2.0;
 263     pz[2] = pz[1]+38.0+spdY+spdchipY+34.5;
 264     pz[3] = pz[2]+2.0;
 265     TNode *iITEL[4],*iICMB[4],*iIMB0[4],*iIMBS[4];
 266     TNode *iIDET = new TNode("IDET","Detector Under Test",iIDETshape,
 267                             0.0,0.0,pz[1]+38.0,r0,0);
 268     iIDET->cd();
 269     TNode *iITS0 = new TNode("ITS0","SPD Chip",iITS0shape,
 270                             0.0,iIDETshape->GetDy()-spdY,0.0,0,0);
 271     TNode *iIPC0[5];
 272     for(i=0;i<5;i++) { //place readout chips on the back of SPD chip under test
 273         sprintf(name,"IPC0%d",i);
 274         sprintf(title,"Readout chip #%d",i+1);
 275         j = i-2;
 276         iIPC0[i] = new TNode(name,title,iIPC0shape,
 277                              0.0,spdchipY-iIDETshape->GetDy(),
 278                              j*2.0*spdchipZ+j*0.25*(spdZ-5.*spdchipZ),0,0);
 279     } // end for i
 280     iITS0->cd();
 281     TNode *iITST = new TNode("ITST","SPD sensitive volume",iITSTshape,
 282                              0.0,0.0,0.0,0,0);
 283     for(Int_t i=0;i<4;i++){
 284         iITSV->cd();
 285         sprintf(name,"ITEL%d",i);
 286         sprintf(title,"Test beam telescope element #%d",i+1);
 287         iITEL[i] = new TNode(name,title,iITELshape,px,py,pz[i],r0,0);
 288         iITEL[i]->cd();
 289         iICMB[i] = new TNode("ICMB","Chip MiniBus",iICMBshape,
 290                              0.0,-iITELshape->GetDy()+detMiniBusY,0.0,0,0);
 291         iIMB0[i] = new TNode("IMB0","Chip MiniBus",iIMB0shape,
 292                              0.0, iITELshape->GetDy()-detMiniBusY,0.0,0,0);
 293         iIMB0[i]->cd();
 294         iIMBS[i] = new TNode("IMBS","IMBS",iIMBSshape,0.0,0.0,0.0,0,0);
 295         // place IMBS inside IMB0 with no translation and unit rotation matrix.
 296     } // end for i
 297     aALIC->cd();
 298     iITST->SetLineColor(kYellow);
 299     fNodes->Add(iITST);
 300     for(i=0;i<4;i++){
 301         iIMBS[i]->SetLineColor(kGreen);
 302         fNodes->Add(iIMBS[i]);
 303     } // end for i
 304 }
 305 //______________________________________________________________________
 306 void AliITSvSPD02::CreateGeometry(){
 307     ////////////////////////////////////////////////////////////////////////
 308     //  This routine defines and Creates the geometry for version 1 of the ITS.
 309     //    ALIC    ALICE Mother Volume
 310     //     |- ITSV     ITS Mother Volume
 311     //         |- IDET       Detector under Test
 312     //         |   |- ITS0       SPD Si Chip
 313     //         |   |  |- ITST      SPD Sensitivve Volume
 314     //         |   |- IPC0 *5    Readout chip
 315     //         |- ITEL *4    SPD Telescope
 316     //             |- IMB0       SPD Si Chip
 317     //             |   |- IMBS     SPD Sensitive volume
 318     //             |- ICMB       Chip MiniBus.
 319     // Inputs:
 320     //    none.
 321     // Outputs:
 322     //    none.
 323     // Return:
 324     //    none.
 325     ////////////////////////////////////////////////////////////////////////
 326
 327     switch (fGeomNumber){
 328     case 2002:
 329         CreateGeometry2002();
 330         break;
 331     default:
 332         CreateGeometry2002();
 333         break;
 334     } // end switch
 335 }
 336 //______________________________________________________________________
 337 void AliITSvSPD02::CreateGeometry2002(){
 338     ////////////////////////////////////////////////////////////////////////
 339     //  This routine defines and Creates the geometry for version 1 of the ITS.
 340     //    ALIC    ALICE Mother Volume
 341     //     |- ITSV     ITS Mother Volume
 342     //         |- IDET       Detector under Test
 343     //         |   |- ITS0       SPD Si Chip
 344     //         |   |  |- ITST      SPD Sensitivve Volume
 345     //         |   |- IPC0 *5    Readout chip
 346     //         |- ITEL *4    SPD Telescope
 347     //             |- IMB0       SPD Si Chip
 348     //             |   |- IMBS     SPD Sensitive volume
 349     //             |- ICMB       Chip MiniBus.
 350     // Inputs:
 351     //    none.
 352     // Outputs:
 353     //    none.
 354     // Return:
 355     //    none.
 356     ////////////////////////////////////////////////////////////////////////
 357     Float_t data[49];
 358     // Define media off-set
 359     Int_t *idtmed = fIdtmed->GetArray()+1; // array of media indexes
 360     Int_t idrotm[4]; // Array of rotation matrix indexes
 361     Float_t ddettest=200.0E-4,ddettelescope=300.0E-4;
 362     Float_t dchipMiniBus=750.0E-4,dchiptest=300.0E-4;
 363     Float_t yposition= 0.0;
 364
 365     if(gMC==0) return;
 366     // Define Rotation-reflextion Matrixes needed
 367     // 0 is the unit matrix
 368     AliMatrix(idrotm[0], 90.0,0.0, 0.0,0.0, 90.0,270.0);
 369     data[0] = 10.0;
 370     data[1] = 50.0;
 371     data[2] = 100.0;
 372     gMC->Gsvolu("ITSV","BOX",idtmed[0],data,3);
 373     gMC->Gspos("ITSV",1,"ALIC",0.0,0.0,0.0,0,"ONLY");
 374
 375     //cout << "idtmed[0]=" << idtmed[0]<<endl;
 376     //cout << "idtmed[1]=" << idtmed[1]<<endl;
 377     Float_t detMiniBusX,detMiniBusY,detMiniBusZ;
 378     // SPD part of telescope (MiniBuS)
 379     data[0] = detMiniBusX = 0.705;
 380     data[1] = detMiniBusY = 0.5*ddettelescope;
 381     data[2] = detMiniBusZ = 3.536;
 382     gMC->Gsvolu("IMB0", "BOX ", idtmed[1], data, 3);   // contains detector
 383     data[0] = 0.64;
 384     data[1] = 0.5*ddettelescope;
 385     data[2] = 3.48;
 386     gMC->Gsvolu("IMBS","BOX ",idtmed[1],data,3); // sensitive detecor volulme
 387     gMC->Gspos("IMBS",1,"IMB0",0.0,0.0,0.0,0,"ONLY"); // place IMBS inside
 388     // IMB0 with no translation and unit rotation matrix.
 389     Float_t chipMiniBusX,chipMiniBusY,chipMiniBusZ;
 390     data[0] = chipMiniBusX = 0.793;
 391     data[1] = chipMiniBusY = 0.5*dchipMiniBus;
 392     data[2] = chipMiniBusZ = 0.68;
 393     gMC->Gsvolu("ICMB","BOX ",idtmed[1],data, 3);   // chip Minibus
 394     data[0] = TMath::Max(detMiniBusX,chipMiniBusX);
 395     data[1] = detMiniBusY+chipMiniBusY;
 396     data[2] = TMath::Max(detMiniBusZ,chipMiniBusZ);
 397     gMC->Gsvolu("ITEL","BOX ",idtmed[0],data,3);
 398     gMC->Gspos("IMB0",1,"ITEL",0.0,data[1]-detMiniBusY,0.0,0,"ONLY");
 399     gMC->Gspos("ICMB",1,"ITEL",0.0,-data[1]+chipMiniBusY,0.0,0,"ONLY");
 400
 401     // SPD under test
 402     Float_t spdX,spdY,spdZ,spdchipX,spdchipY,spdchipZ;
 403     data[0] = spdX = 0.705;
 404     data[1] = spdY = 0.5*ddettest;
 405     data[2] = spdZ = 3.536;
 406     gMC->Gsvolu("ITS0", "BOX ", idtmed[1], data, 3);   // contains detector
 407     data[0] = 0.64;
 408     data[1] = 0.5*ddettest;
 409     data[2] = 3.48;
 410     gMC->Gsvolu("ITST","BOX ",idtmed[1],data,3);// sensitive detecor volume
 411     gMC->Gspos("ITST",1,"ITS0",0.0,0.0,0.0,0,"ONLY"); // place ITST inside
 412     // ITS0 with no translation and unit rotation matrix.
 413     data[0] = spdchipX = 0.793;
 414     data[1] = spdchipY = 0.5*dchiptest;
 415     data[2] = spdchipZ = 0.68;
 416     gMC->Gsvolu("IPC0", "BOX ", idtmed[1],data,3);   // chip under test
 417     data[0] = TMath::Max(spdchipX,spdX);
 418     data[1] = spdY+spdchipY;
 419     data[2] = TMath::Max(spdchipZ,spdZ);
 420     gMC->Gsvolu("IDET","BOX ",idtmed[0],data,3);
 421     gMC->Gspos("ITS0",1,"IDET",0.0,data[1]-spdY,0.0,0,"ONLY");
 422     for(Int_t i=-2;i<3;i++) gMC->Gspos("IPC0",i+3,"IDET",0.0,-data[1]+spdchipY,
 423               i*2.*spdchipZ+i*0.25*(spdZ-5.*spdchipZ),0,"ONLY");
 424
 425     // Positions detectors, Beam Axis Z, X to the right, Y up to the sky.
 426     Float_t p00X,p00Y,p00Z,p01X,p01Y,p01Z,p10X,p10Y,p10Z,p11X,p11Y,p11Z;
 427     p00X = 0.0;
 428     p00Y = 0.0;
 429     p00Z = -38.0;
 430     gMC->Gspos("ITEL",1,"ITSV",p00X,p00Y,p00Z,idrotm[0],"ONLY");
 431     p01X = 0.0;
 432     p01Y = 0.0;
 433     p01Z = p00Z+2.0;
 434     gMC->Gspos("ITEL",2,"ITSV",p01X,p01Y,p01Z,idrotm[0],"ONLY");
 435     Float_t pdetX,pdetY,pdetZ;
 436     pdetX = 0.0;
 437     pdetY = 0.0+yposition;
 438     pdetZ = p01Z+38.0;
 439     gMC->Gspos("IDET",1,"ITSV",pdetX,pdetY,pdetZ,idrotm[0],"ONLY");
 440     p10X = 0.0;
 441     p10Y = 0.0;
 442     p10Z = pdetZ + 34.5;
 443     gMC->Gspos("ITEL",3,"ITSV",p10X,p10Y,p10Z,idrotm[0],"ONLY");
 444     p11X = 0.0;
 445     p11Y = 0.0;
 446     p11Z = p10Z+2.0;
 447     gMC->Gspos("ITEL",4,"ITSV",p11X,p11Y,p11Z,idrotm[0],"ONLY");
 448 }
 449 //______________________________________________________________________
 450 void AliITSvSPD02::CreateMaterials(){
 451     ////////////////////////////////////////////////////////////////////////
 452     //
 453     // Create ITS SPD test beam materials
 454     //     This function defines the default materials used in the Geant
 455     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 456     // AliITSvSPD02.
 457     // In general it is automatically replaced by
 458     // the CreateMaterials routine defined in AliITSv?. Should the function
 459     // CreateMaterials not exist for the geometry version you are using this
 460     // one is used. See the definition found in AliITSv5 or the other routine
 461     // for a complete definition.
 462     //
 463     // Inputs:
 464     //    none.
 465     // Outputs:
 466     //    none.
 467     // Return:
 468     //    none.
 469     /////////////////////////////////////////////////////////////////////////
 470
 471     switch (fGeomNumber){
 472     case 2002:
 473         CreateMaterials2002();
 474         break;
 475     default:
 476         CreateMaterials2002();
 477         break;
 478     } // end switch
 479 }
 480 //______________________________________________________________________
 481 void AliITSvSPD02::CreateMaterials2002(){
 482     ////////////////////////////////////////////////////////////////////////
 483     //
 484     // Create ITS SPD test beam materials
 485     //     This function defines the default materials used in the Geant
 486     // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 487     // AliITSvSPD02.
 488     // In general it is automatically replaced by
 489     // the CreateMaterials routine defined in AliITSv?. Should the function
 490     // CreateMaterials not exist for the geometry version you are using this
 491     // one is used. See the definition found in AliITSv5 or the other routine
 492     // for a complete definition.
 493     //
 494     // Inputs:
 495     //    none.
 496     // Outputs:
 497     //    none.
 498     // Return:
 499     //    none.
 500     /////////////////////////////////////////////////////////////////////////
 501     Float_t tmaxfdSi = 0.1; // Degree
 502     Float_t stemaxSi = 0.0075; // cm
 503     Float_t deemaxSi = 0.1; // Fraction of particle's energy 0<deemax<=1
 504     Float_t epsilSi  = 1.0E-4;//
 505     Float_t stminSi  = 0.0; // cm "Default value used"
 506
 507     Float_t tmaxfdAir = 0.1; // Degree
 508     Float_t stemaxAir = .10000E+01; // cm
 509     Float_t deemaxAir = 0.1; // Fraction of particle's energy 0<deemax<=1
 510     Float_t epsilAir  = 1.0E-4;//
 511     Float_t stminAir  = 0.0; // cm "Default value used"
 512     Int_t   ifield = gAlice->Field()->Integ();
 513     Float_t fieldm = gAlice->Field()->Max();
 514
 515     AliMaterial(1,"AIR$",0.14610E+02,0.73000E+01,0.12050E-02,
 516                 0.30423E+05,0.99900E+03);
 517     AliMedium(1,"AIR$",1,0,ifield,fieldm,tmaxfdAir,stemaxAir,deemaxAir,
 518               epsilAir,stminAir);
 519
 520     AliMaterial(2,"SI$",0.28086E+02,0.14000E+02,0.23300E+01,
 521                 0.93600E+01,0.99900E+03);
 522     AliMedium(2,"SI$",2,0,ifield,fieldm,tmaxfdSi,stemaxSi,deemaxSi,
 523               epsilSi,stminSi);
 524 }
 525 //______________________________________________________________________
 526 Int_t AliITSvSPD02::DecodeDetector(Int_t id,Int_t cpy,Int_t &lay,Int_t &lad,
 527     Int_t &det)const{
 528     //     Based on the geometry tree defined in Geant 3.21, this
 529     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 530     // sturture.
 531     // Inputs:
 532     //    Int_t id   Detector volume id
 533     //    Int_t cpy  Detector copy number
 534     // Outputs:
 535     //    Int_t lay  layer number
 536     //    Int_t lad  ladder number
 537     //    Int_t det  detector number
 538     // Return:
 539     //    The module number
 540     Int_t mod;
 541
 542     lad = det = 1;
 543     lay = cpy;
 544     if(cpy>2 && id==fIdSens[0]) lay = cpy + 1;
 545     if(id==fIdSens[1]) lay = 3;
 546     mod = lay - 1;
 547     return mod;
 548 }
 549 //______________________________________________________________________
 550 void AliITSvSPD02::InitAliITSgeom(){
 551     //     Based on the geometry tree defined in Geant 3.21, this
 552     // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS geometry
 553     // sturture.
 554     // Inputs:
 555     //    none.
 556     // Outputs:
 557     //    none.
 558     // Return:
 559     //    none.
 560     const Int_t kltypess=2;
 561     const Int_t knlayers=5;
 562     const TString knames[kltypess]=
 563         {"ALIC_1/ITSV_1/ITEL_%d/IMB0_1/IMBS_1",//lay=1,2,4,5
 564          "ALIC_1/ITSV_1/IDET_%d/ITS0_1/ITST_1"};// lay=3
 565     const Int_t kitsGeomTreeCopys[2]={4,1};
 566     const Int_t knlad[knlayers]={knlayers*1},kndet[knlayers]={knlayers*1};
 567     TString path,shapeName;
 568     TGeoHMatrix matrix;
 569     TArrayD shapePar;
 570     TArrayF shapeParF;
 571     Double_t trans[3]={3*0.0},rot[10]={10*0.0};
 572     Int_t npar=3,mod,i,j,lay,lad,det,cpy;
 573     Float_t par[20];
 574
 575     par[0]=0.64;par[1]=0.5*300.0E-4;par[2]=3.48;
 576     mod=5;
 577     AliITSgeom* geom = new AliITSgeom(0,knlayers,knlad,kndet,mod);
 578     SetITSgeom(geom);
 579     for(i=0;i<kltypess;i++)for(cpy=1;cpy<=kitsGeomTreeCopys[i];cpy++){
 580         path.Form(knames[i].Data(),cpy);
 581         gMC->GetTransformation(path.Data(),matrix);
 582         gMC->GetShape(path.Data(),shapeName,shapePar);
 583         shapeParF.Set(shapePar.GetSize());
 584         for(j=0;j<shapePar.GetSize();j++) shapeParF[j]=shapePar[j];
 585         mod = DecodeDetector(fIdSens[i],cpy,lay,lad,det);
 586         geom->CreateMatrix(mod,lay,lad,det,kSPD,trans,rot);
 587         geom->SetTrans(mod,matrix.GetTranslation());
 588         geom->SetRotMatrix(mod,matrix.GetRotationMatrix());
 589         geom->GetGeomMatrix(mod)->SetPath(path.Data());
 590         if(!(geom->IsShapeDefined((Int_t)kSPD)))
 591             geom->ReSetShape(kSPD,new AliITSgeomSPD425Short(npar,par));
 592     } // end for i,cpy/
 593     return;
 594 }
 595 //______________________________________________________________________
 596 void AliITSvSPD02::Init(){
 597     ////////////////////////////////////////////////////////////////////////
 598     //     Initialise the ITS after it has been created.
 599     // Inputs:
 600     //    none.
 601     // Outputs:
 602     //    none.
 603     // Return:
 604     //    none.
 605     ////////////////////////////////////////////////////////////////////////
 606     Int_t i;
 607
 608     cout << endl;
 609     for(i=0;i<26;i++) cout << "*";
 610     cout << " ITSvSPD02" << fMinorVersion << "_Init ";
 611     for(i=0;i<25;i++) cout << "*";cout << endl;
 612
 613     if(fRead[0]=='\0') strncpy(fRead,fEuclidGeomDet,60);
 614     if(fWrite[0]=='\0') strncpy(fWrite,fEuclidGeomDet,60);
 615     if(GetITSgeom()!=0) SetITSgeom(0x0);
 616     AliITSgeom* geom = new AliITSgeom();
 617     SetITSgeom(geom);
 618     if(fGeomDetIn) GetITSgeom()->ReadNewFile(fRead);
 619     if(!fGeomDetIn) this->InitAliITSgeom();
 620     if(fGeomDetOut) GetITSgeom()->WriteNewFile(fWrite);
 621     AliITS::Init();
 622
 623     for(i=0;i<72;i++) cout << "*";
 624     cout << endl;
 625     if(gMC) fIDMother = gMC->VolId("ITSV"); // ITS Mother Volume ID.
 626     else fIDMother = 0;
 627 }
 628 //______________________________________________________________________
 629 void AliITSvSPD02::SetDefaults(){
 630     // sets the default segmentation, response, digit and raw cluster classes
 631     // Inputs:
 632     //    none.
 633     // Outputs:
 634     //    none.
 635     // Return:
 636     //    none.
 637     const Float_t kconv = 1.0e+04; // convert cm to microns
 638
 639     Info("SetDefaults","Setting up only SPD detector");
 640
 641     if(!fDetTypeSim) fDetTypeSim = new AliITSDetTypeSim();
 642     fDetTypeSim->SetITSgeom(GetITSgeom());
 643     AliITSgeomSPD  *s0;
 644     Int_t i;
 645     Float_t bx[256],bz[280];
 646     fDetTypeSim->ResetCalibrationArray();
 647     fDetTypeSim->ResetSegmentation();
 648
 649     //SPD
 650     // Get shape info. Do it this way for now.
 651     s0 = (AliITSgeomSPD*) GetITSgeom()->GetShape(kSPD);
 652     AliITSCalibration *resp0=new AliITSCalibrationSPD();
 653     resp0->SetTemperature();
 654     resp0->SetDistanceOverVoltage();
 655     SetCalibrationModel(0,resp0);
 656
 657     AliITSsegmentationSPD *seg0=new AliITSsegmentationSPD();
 658     seg0->SetDetSize(s0->GetDx()*2.*kconv, // base this on AliITSgeomSPD
 659                      s0->GetDz()*2.*kconv, // for now.
 660                      s0->GetDy()*2.*kconv); // x,z,y full width in microns.
 661     seg0->SetNPads(256,160);// Number of Bins in x and z
 662     for(i=000;i<256;i++) bx[i] =  50.0; // in x all are 50 microns.
 663     for(i=000;i<160;i++) bz[i] = 425.0; // most are 425 microns except below
 664     for(i=160;i<280;i++) bz[i] =   0.0; // Outside of detector.
 665     bz[ 31] = bz[ 32] = 625.0; // first chip boundry
 666     bz[ 63] = bz[ 64] = 625.0; // first chip boundry
 667     bz[ 95] = bz[ 96] = 625.0; // first chip boundry
 668     bz[127] = bz[128] = 625.0; // first chip boundry
 669     bz[160] = 425.0; // Set so that there is no zero pixel size for fNz.
 670     seg0->SetBinSize(bx,bz); // Based on AliITSgeomSPD for now.
 671     SetSegmentationModel(kSPD,seg0);
 672     // set digit and raw cluster classes to be used
 673     const char *kData0=(fDetTypeSim->GetCalibrationModel(0))->DataType();
 674     if (strstr(kData0,"real")) fDetTypeSim->SetDigitClassName(kSPD,"AliITSdigit");
 675     else fDetTypeSim->SetDigitClassName(kSPD,"AliITSdigitSPD");
 676 //    SetSimulationModel(kSPD,new AliITSsimulationSPDdubna(seg0,resp0));
 677 //    iDetType->ReconstructionModel(new AliITSClusterFinderSPD());
 678
 679 /*
 680     SetResponseModel(kSDD,new AliITSCalibrationSDD());
 681     SetSegmentationModel(kSDD,new AliITSsegmentationSDD());
 682     DetType(kSDD)->ClassNames("AliITSdigitSDD","AliITSRawClusterSDD");
 683
 684     SetResponseModel(kSSD,new AliITSCalibrationSSD());
 685     SetSegmentationModel(kSSD,new AliITSsegmentationSSD());
 686     DetType(kSSD)->ClassNames("AliITSdigitSSD","AliITSRawClusterSSD");
 687 */
 688     if(fgkNTYPES>3){
 689         Warning("SetDefaults",
 690                 "Only the four basic detector types are initialised!");
 691     }// end if
 692     return;
 693 }
 694 //______________________________________________________________________
 695 void AliITSvSPD02::SetDefaultSimulation(){
 696     // sets the default simulation.
 697     // Inputs:
 698     //      none.
 699     // Outputs:
 700     //      none.
 701     // Return:
 702     //      none.
 703
 704   if(GetITSgeom()==0){
 705     Warning("SetDefaultSimulation","ITS geometry is null!");
 706     return;
 707   }
 708
 709   if(!fDetTypeSim) fDetTypeSim = new AliITSDetTypeSim();
 710   AliITSsimulation *sim;
 711   //AliITSsegmentation *seg;
 712   //AliITSCalibration *res;
 713   if(fDetTypeSim){
 714     sim = fDetTypeSim->GetSimulationModel(kSPD);
 715     if (!sim) {
 716       //seg = (AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSPD);
 717       //res = (AliITSCalibration*)fDetTypeSim->GetResponseModel(GetITSgeom()->GetStartSPD());
 718       sim = new AliITSsimulationSPD(fDetTypeSim);
 719       SetSimulationModel(kSPD,sim);
 720     }else{ // simulation exists, make sure it is set up properly.
 721       sim->SetCalibrationModel(GetITSgeom()->GetStartSPD(),(AliITSCalibration*)fDetTypeSim->GetCalibrationModel(GetITSgeom()->GetStartSPD()));
 722       sim->SetSegmentationModel(kSPD,(AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSPD));
 723       sim->Init();
 724     } // end if
 725   } // end if iDetType
 726
 727     /*
 728       if(fDetTypeSim){
 729         sim = fDetTypeSim->GetSimulationModel(kSDD);
 730         if (!sim) {
 731             seg = (AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSDD);
 732             res = (AliITSCalibration*)fDetTypeSim->GetResponseModel(GetITSgeom()->GetStartSDD());
 733             sim = new AliITSsimulationSDD(seg,res);
 734             SetSimulationModel(kSDD,sim);
 735         }else{ // simulation exists, make sure it is set up properly.
 736           sim->SetResponseModel((AliITSCalibration*)fDetTypeSim->GetResponseModel(GetITSgeom()->GetStartSDD()));
 737           sim->SetSegmentationModel((AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSDD));
 738           sim->Init();
 739         } //end if
 740     } // end if iDetType
 741     if(fDetTypeSim){
 742         sim = fDetTypeSim->GetSimulationModel(kSSD);
 743         if (!sim) {
 744             seg = (AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSSD);
 745             res = (AliITSCalibration*)fDetTypeSim->GetResponseModel(GetITSgeom()->GetStartSSD());
 746             sim = new AliITSsimulationSSD(seg,res);
 747             SetSimulationModel(kSSD,sim);
 748         }else{ // simulation exists, make sure it is set up properly.
 749           sim->SetResponseModel((AliITSCalibration*)fDetTypeSim->GetResponseModel(GetITSgeom()->GetStartSSD()));
 750           sim->SetSegmentationModel((AliITSsegmentation*)fDetTypeSim->GetSegmentationModel(kSSD));
 751           sim->Init();
 752         } // end if
 753     } //
 754     */
 755 }
 756 //______________________________________________________________________
 757 void AliITSvSPD02::DrawModule() const {
 758     ////////////////////////////////////////////////////////////////////////
 759     //     Draw a shaded view of the ITS SPD test beam version 1.
 760     // Inputs:
 761     //    none.
 762     // Outputs:
 763     //    none.
 764     // Return:
 765     //    none.
 766     ////////////////////////////////////////////////////////////////////////
 767     // Set everything unseen
 768     gMC->Gsatt("*", "seen", -1);
 769     // Set ALIC mother visible
 770     gMC->Gsatt("ALIC","SEEN",0);
 771     // Set ALIC ITS visible
 772     gMC->Gsatt("ITSV","SEEN",0);
 773     // Set ALIC Telescopes visible
 774     gMC->Gsatt("ITEL","SEEN",0);
 775     // Set ALIC detetcor visible
 776     gMC->Gsatt("IDET","SEEN",0);
 777     // Set Detector chip mother visible and drawn
 778     gMC->Gsatt("IPC0","SEEN",1);
 779     // Set Detector mother visible and drawn
 780     gMC->Gsatt("ITS0","SEEN",1);
 781     // Set minibus chip mother visible and drawn
 782     gMC->Gsatt("ICMB","SEEN",1);
 783     // Set minibus mother visible and drawn
 784     gMC->Gsatt("IMB0","SEEN",1);
 785 }
 786 //______________________________________________________________________
 787 void AliITSvSPD02::StepManager(){
 788     ////////////////////////////////////////////////////////////////////////
 789     //    Called for every step in the ITS SPD test beam, then calles the
 790     // AliITShit class  creator with the information to be recoreded about
 791     //  that hit.
 792     //     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 793     // printing of information to a file which can be used to create a .det
 794     // file read in by the routine CreateGeometry(). If set to 0 or any other
 795     // value except 1, the default behavior, then no such file is created nor
 796     // it the extra variables and the like used in the printing allocated.
 797     // Inputs:
 798     //    none.
 799     // Outputs:
 800     //    none.
 801     // Return:
 802     //    none.
 803     ////////////////////////////////////////////////////////////////////////
 804     Int_t         copy=0, id;
 805     TLorentzVector position, momentum;
 806     static TLorentzVector position0;
 807     static Int_t stat0=0;
 808     if((id=gMC->CurrentVolID(copy) == fIDMother)&&
 809        (gMC->IsTrackEntering()||gMC->IsTrackExiting())){
 810         copy = fTrackReferences->GetEntriesFast();
 811         TClonesArray &lTR = *fTrackReferences;
 812         // Fill TrackReference structure with this new TrackReference.
 813         new(lTR[copy]) AliTrackReference(gAlice->GetMCApp()->
 814                                          GetCurrentTrackNumber());
 815     } // if Outer ITS mother Volume
 816     if(!(this->IsActive())){
 817         return;
 818     } // end if !Active volume.
 819     Int_t   vol[5];
 820     TClonesArray &lhits = *fHits;
 821     //
 822     // Track status
 823     vol[3] = 0;
 824     vol[4] = 0;
 825     if(gMC->IsTrackInside())      vol[3] +=  1;
 826     if(gMC->IsTrackEntering())    vol[3] +=  2;
 827     if(gMC->IsTrackExiting())     vol[3] +=  4;
 828     if(gMC->IsTrackOut())         vol[3] +=  8;
 829     if(gMC->IsTrackDisappeared()) vol[3] += 16;
 830     if(gMC->IsTrackStop())        vol[3] += 32;
 831     if(gMC->IsTrackAlive())       vol[3] += 64;
 832     //
 833     // Fill hit structure.
 834     if(!(gMC->TrackCharge())) return;
 835     id = gMC->CurrentVolID(copy);
 836     if(id==fIdSens[0]){  // Volume name "IMBS"
 837         vol[2] = vol[1] = 1; // Det, ladder
 838         id = gMC->CurrentVolOffID(2,copy);
 839         //detector copy in the ladder = 1<->4  (ITS1 < I101 < I103 < I10A)
 840         vol[0] = copy; // Lay
 841         if(copy>2) vol[0]++;
 842     } else if(id == fIdSens[1]){ // Volume name "ITST"
 843         vol[0] = 3; // layer
 844         vol[1] = 1; // ladder
 845         id = gMC->CurrentVolOffID(2,copy);
 846         //detector copy in the ladder = 1<->4  (ITS2 < I1D1 < I1D3 < I20A)
 847         vol[2] = 1;  // detector
 848     } else return; // end if
 849     //
 850     gMC->TrackPosition(position);
 851     gMC->TrackMomentum(momentum);
 852     vol[4] = stat0;
 853     if(gMC->IsTrackEntering()){
 854         position0 = position;
 855         stat0 = vol[3];
 856         return;
 857     } // end if IsEntering
 858     // Fill hit structure with this new hit only for non-entrerance hits.
 859     else new(lhits[fNhits++]) AliITShit(fIshunt,
 860                                   gAlice->GetMCApp()->GetCurrentTrackNumber(),
 861                                         vol,gMC->Edep(),gMC->TrackTime(),
 862                                         position,position0,momentum);
 863     //
 864     position0 = position;
 865     stat0 = vol[3];
 866
 867     return;
 868 }
 869