ITS/ConfigSSD03.C

   1 //
   2 #if !defined(__CINT__) || defined(__MAKECINT__)
   3 #include <Riostream.h>
   4 #include <TRandom.h>
   5 #include <TSystem.h>
   6 #include <TVirtualMC.h>
   7 #include <TGeant3.h>
   8 #include "STEER/AliRunLoader.h"
   9 #include "STEER/AliRun.h"
  10 #include "STEER/AliConfig.h"
  11 #include "PYTHIA6/AliDecayerPythia.h"
  12 #include "EVGEN/AliGenCocktail.h"
  13 #include "EVGEN/AliGenHIJINGpara.h"
  14 #include "STRUCT/AliBODY.h"
  15 #include "STRUCT/AliABSOv0.h"
  16 #include "STRUCT/AliDIPOv2.h"
  17 #include "STRUCT/AliHALL.h"
  18 #include "STRUCT/AliFRAMEv2.h"
  19 #include "STRUCT/AliSHILv2.h"
  20 #include "STRUCT/AliPIPEv0.h"
  21 #include "ITS/AliITSvSSD03.h"
  22 #endif
  23
  24 Float_t EtaToTheta(Float_t arg){
  25   return (180./TMath::Pi())*2.*atan(exp(-arg));
  26 }
  27 //------------------------------------------------------------------
  28 void Config(){
  29     // Set Random Number seed
  30     // gRandom->SetSeed(12345);
  31     // libraries required by geant321
  32 #if defined(__CINT__)
  33     gSystem->Load("libgeant321");
  34 #endif
  35     new TGeant3("C++ Interface to Geant3");
  36     AliRunLoader *rl = 0;
  37     rl = AliRunLoader::Open("galice.root",
  38                             AliConfig::GetDefaultEventFolderName(),"recreate");
  39     if (rl == 0x0){
  40       gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
  41       return;
  42     } // end if rl==0x0
  43     rl->SetCompressionLevel(2);
  44     rl->SetNumberOfEventsPerFile(1000);
  45     gAlice->SetRunLoader(rl);
  46     //
  47     // Set External decayer
  48     TVirtualMCDecayer *decayer = new AliDecayerPythia();
  49     decayer->SetForceDecay(kAll);
  50     decayer->Init();
  51     gMC->SetExternalDecayer(decayer);
  52     //=======================================================================
  53     gMC->SetProcess("DCAY",1);
  54     gMC->SetProcess("PAIR",1);
  55     gMC->SetProcess("COMP",1);
  56     gMC->SetProcess("PHOT",1);
  57     gMC->SetProcess("PFIS",0);
  58     gMC->SetProcess("DRAY",0);
  59     gMC->SetProcess("ANNI",1);
  60     gMC->SetProcess("BREM",1);
  61     gMC->SetProcess("MUNU",1);
  62     gMC->SetProcess("CKOV",1);
  63     gMC->SetProcess("HADR",1);
  64     gMC->SetProcess("LOSS",2);
  65     gMC->SetProcess("MULS",1);
  66     gMC->SetProcess("RAYL",1);
  67     Float_t cut = 1.e-3;        // 1MeV cut by default
  68     Float_t tofmax = 1.e10;
  69     gMC->SetCut("CUTGAM", cut);
  70     gMC->SetCut("CUTELE", cut);
  71     gMC->SetCut("CUTNEU", cut);
  72     gMC->SetCut("CUTHAD", cut);
  73     gMC->SetCut("CUTMUO", cut);
  74     gMC->SetCut("BCUTE",  cut);
  75     gMC->SetCut("BCUTM",  cut);
  76     gMC->SetCut("DCUTE",  cut);
  77     gMC->SetCut("DCUTM",  cut);
  78     gMC->SetCut("PPCUTM", cut);
  79     gMC->SetCut("TOFMAX", tofmax);
  80     int     nParticles = 1;
  81     if (gSystem->Getenv("CONFIG_NPARTICLES")){
  82       nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
  83     } // end if
  84     //*********************************************
  85     // Example for Moving Particle Gun            *
  86     //*********************************************
  87     AliGenBox *gener = new AliGenBox(nParticles);
  88     //gener->SetMomentumRange(100.,300.);
  89     gener->SetMomentumRange(7.,7.);
  90     //gener->SetPhiRange(0,0.1);
  91     gener->SetPhiRange(0,360.0);
  92     gener->SetThetaRange(0.0, .2);
  93     //gener->SetThetaRange(0.0,0.0);
  94     gener->SetOrigin(0.,0.,-650.);   // beam comes ~-6.5 m from telescope
  95     //vertex position
  96     gener->SetSigma(1.,1.,0.0); //Sigma in (X,Y,Z) (cm) on IP position
  97
  98     //gener->SetPart(kPiPlus);
  99     //cout<<"kPiPlus="<<kPiPlus<<endl;
 100     gener->SetPart(kPiPlus);
 101     gener->Init();
 102     // Activate this line if you want the vertex smearing to happen
 103     // track by track
 104     //
 105     //gener->SetVertexSmear(kPerTrack);
 106     // Field (L3 0.4 T)
 107     //gAlice->SetField(field);
 108
 109     Int_t   iHALL  =  0;
 110     Int_t   iITS   =  1;
 111     rl->CdGAFile();
 112     //=================== Alice BODY parameters =============================
 113     AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
 114
 115     if (iHALL){
 116         //=================== HALL parameters ============================
 117         AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
 118     } // end if
 119     if(iITS) {
 120         //=================== ITS parameters ============================
 121         AliITSvSSD03 *ITS  = new AliITSvSSD03("SSD test beam 2003",2003);
 122     }
 123     return;
 124 }