+// $Id$
+//
+// Configuration macro for running aliroot with Geant4.
+// All AliRoot specifics are defined in g4ConfigCommon.C
+//
+// In order to run aliroot with Geant4, you have to Initialize
+// AliRun with this g4Config.C
+//
+// aliroot
+// root [0] gAlice->Init("g4Config.C");
+// root [1] gAlice->Run();
+//
+// You can also start from a mini GUI - g4menu.C.
+// See description in this macro.
+
+
void Config()
{
- // =============================
- // Root file
- // =============================
-
- // Create the output file
- TFile *rootfile = new TFile("galice.root","recreate");
- rootfile->SetCompressionLevel(2);
-
- // Set External decayer
- AliDecayer* decayer = new AliDecayerPythia();
- decayer->SetForceDecay(kAll);
- decayer->Init();
- gMC->SetExternalDecayer(decayer);
-
// =============================
// Geant4
// =============================
- if (gClassTable->GetID("TGeant4") == -1) {
- // load dynamically only if executable was not linked
- // with geant4 libraries
-
- // load Geant4 and AliRoot steer libraries
- if (!gInterpreter->IsLoaded("g4libs.C")) gROOT->LoadMacro("g4libs.C");
- gInterpreter->ProcessLine("g4libs()");
- gInterpreter->ProcessLine("steerlibs()");
-
- // Create Geant4
- if (!gInterpreter->IsLoaded("g4menu.C")) gROOT->LoadMacro("g4menu.C");
- gInterpreter->ProcessLine("CreateGeant4()");
- }
-
- // Physics process control
- gMC ->SetProcess("DCAY",1);
- gMC ->SetProcess("PAIR",1);
- gMC ->SetProcess("COMP",1);
- gMC ->SetProcess("PHOT",1);
- gMC ->SetProcess("PFIS",0);
- gMC ->SetProcess("DRAY",0);
- gMC ->SetProcess("ANNI",1);
- gMC ->SetProcess("BREM",1);
- gMC ->SetProcess("MUNU",1);
- //xx gMC ->SetProcess("CKOV",1);
- gMC ->SetProcess("HADR",1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
- gMC ->SetProcess("LOSS",2);
- gMC ->SetProcess("MULS",1);
- //xx gMC ->SetProcess("RAYL",1);
-
- // Energy cuts
- // (in development)
- Float_t cut = 1.e-3; // 1MeV cut by default
- Float_t tofmax = 1.e10;
-
- gMC ->SetCut("CUTGAM",cut);
- gMC ->SetCut("CUTELE",cut);
- gMC ->SetCut("CUTNEU",cut);
- gMC ->SetCut("CUTHAD",cut);
- gMC ->SetCut("CUTMUO",cut);
- gMC ->SetCut("BCUTE",cut);
- gMC ->SetCut("BCUTM",cut);
- gMC ->SetCut("DCUTE",cut);
- gMC ->SetCut("DCUTM",cut);
- gMC ->SetCut("PPCUTM",cut);
- gMC ->SetCut("TOFMAX",tofmax);
-
- // =============================
- // Event generator
- // =============================
-
- // --- Specify event type to be tracked through the ALICE setup
- // --- All positions are in cm, angles in degrees, and P and E in GeV
-
- Int_t nParticles;
- if (gSystem->Getenv("CONFIG_NPARTICLES"))
- nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
- else
- nParticles = 100;
-
-
- AliGenHIJINGpara *gener = new AliGenHIJINGpara(nParticles);
- gener->SetMomentumRange(0,999);
- gener->SetPhiRange(0,360);
- // Set pseudorapidity range from -8 to 8.
- Float_t thmin = EtaToTheta(8); // theta min. <---> eta max
- Float_t thmax = EtaToTheta(-8); // theta max. <---> eta min
- gener->SetThetaRange(thmin, thmax);
- gener->SetOrigin(0,0,0); //vertex position
- gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
- gener->Init();
+ // Load Geant4 + Geant4 VMC libraries
//
- // Activate this line if you want the vertex smearing to happen
- // track by track
+ if (gClassTable->GetID("TGeant4") == -1) {
+ // Load Geant4 libraries
+ if (!gInterpreter->IsLoaded("$ALICE/geant4_vmc/examples/macro/g4libs.C")) {
+ gROOT->LoadMacro("$ALICE/geant4_vmc/examples/macro/g4libs.C");
+ gInterpreter->ProcessLine("g4libs()");
+ }
+ }
- //gener->SetVertexSmear(perTrack);
+ // Create Geant4 VMC
+ //
+ if (!gMC) {
- // =============================
- // Magnetic field
- // =============================
+ TG4RunConfiguration* runConfiguration
+ = new TG4RunConfiguration(true);
+
+ TGeant4* geant4
+ = new TGeant4("TGeant4", "The Geant4 Monte Carlo", runConfiguration);
- //xx gAlice->SetField(-999,2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
+ cout << "Geant4 has been created." << endl;
+ }
+ else
+ cout << "Monte Carlo has been already created." << endl;
// =============================
- // Alice modules
+ // AliRoot setup
// =============================
- //Bool_t isSetInteractively = false;
- Bool_t isSetInteractively = true;
-
- if (!isSetInteractively) {
-
- // Load modules libraries
- if (!gInterpreter->IsLoaded("g4libs.C")) gROOT->LoadMacro("g4libs.C");
- gInterpreter->ProcessLine("detlibs()");
-
- // Select modules
- Int_t iABSO=1;
- Int_t iCASTOR=1;
- Int_t iDIPO=1;
- Int_t iFMD=1;
- Int_t iFRAME=1;
- Int_t iHALL=1;
- Int_t iITS=1;
- Int_t iMAG=1;
- Int_t iMUON=1;
- Int_t iPHOS=1;
- Int_t iPIPE=1;
- Int_t iPMD=1;
- Int_t iRICH=1;
- Int_t iSHIL=1;
- Int_t iSTART=1;
- Int_t iTOF=1;
- Int_t iTPC=1;
- Int_t iTRD=1;
- Int_t iZDC=1;
-
- // Exclude detectors that do not work with Geant4
- iCASTOR=0;
- // Detectors with temporary problem
- iZDC=0;
- iPMD=0;
- iITS=0;
-
-// From G3 Config.C
-// Without any modification
-
-
- //=================== Alice BODY parameters =============================
- AliBODY *BODY = new AliBODY("BODY","Alice envelop");
-
-
- if(iMAG) {
- //=================== MAG parameters ============================
- // --- Start with Magnet since detector layouts may be depending ---
- // --- on the selected Magnet dimensions ---
- AliMAG *MAG = new AliMAG("MAG","Magnet");
- }
-
-
- if(iABSO) {
- //=================== ABSO parameters ============================
- AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
- }
-
- if(iDIPO) {
- //=================== DIPO parameters ============================
-
- AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
- }
-
- if(iHALL) {
- //=================== HALL parameters ============================
-
- AliHALL *HALL = new AliHALL("HALL","Alice Hall");
- }
-
-
- if(iFRAME) {
- //=================== FRAME parameters ============================
-
- AliFRAME *FRAME = new AliFRAMEv2("FRAME","Space Frame");
-
- }
-
- if(iSHIL) {
- //=================== SHIL parameters ============================
-
- AliSHIL *SHIL = new AliSHILv0("SHIL","Shielding");
- }
-
-
- if(iPIPE) {
- //=================== PIPE parameters ============================
-
- AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
- }
-
-
- if(iITS) {
- //=================== ITS parameters ============================
- //
- // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
- // almost all other detectors. This involves the fact that the ITS geometry
- // still has several options to be followed in parallel in order to determine
- // the best set-up which minimizes the induced background. All the geometries
- // available to date are described in the following. Read carefully the comments
- // and use the default version (the only one uncommented) unless you are making
- // comparisons and you know what you are doing. In this case just uncomment the
- // ITS geometry you want to use and run Aliroot.
- //
- // Detailed geometries:
- //
- //
- //AliITS *ITS = new AliITSv5symm("ITS","Updated ITS TDR detailed version with symmetric services");
- //
- //AliITS *ITS = new AliITSv5asymm("ITS","Updates ITS TDR detailed version with asymmetric services");
- //
- AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
- ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
- ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
- // ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
- ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
- ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
- ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
- ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
- ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
- ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
- //
- //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services");
- //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
- //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
- //ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRsymm2.det"); // don't touch this parameter if you're not an ITS developer
- //ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
- //ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
- //ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
- //ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300]
- //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
- //ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
- //
- //
- // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
- // for reconstruction !):
- //
- //
- //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
- //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
- //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
- //
- //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
- //ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
- //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
- //
- //
- //
- // Geant3 <-> EUCLID conversion
- // ============================
- //
- // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
- // media to two ASCII files (called by default ITSgeometry.euc and
- // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
- // The default (=0) means that you dont want to use this facility.
- //
- ITS->SetEUCLID(0);
- }
-
- if(iTPC) {
- //============================ TPC parameters ================================
- // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
- // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
- // --- sectors are specified, any value other than that requires at least one
- // --- sector (lower or upper)to be specified!
- // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
- // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
- // --- SecLows - number of lower sectors specified (up to 6)
- // --- SecUps - number of upper sectors specified (up to 12)
- // --- Sens - sensitive strips for the Slow Simulator !!!
- // --- This does NOT work if all S or L-sectors are specified, i.e.
- // --- if SecAL or SecAU < 0
- //
- //
- //-----------------------------------------------------------------------------
-
- // gROOT->LoadMacro("SetTPCParam.C");
- // AliTPCParam *param = SetTPCParam();
- AliTPC *TPC = new AliTPCv2("TPC","Default");
- // All sectors included
- TPC->SetSecAL(-1);
- TPC->SetSecAU(-1);
-
- }
-
- if(iTOF) {
- //=================== TOF parameters ============================
- AliTOF *TOF = new AliTOFv2("TOF","normal TOF");
- }
-
- if(iRICH) {
- //=================== RICH parameters ===========================
- AliRICH *RICH = new AliRICHv1("RICH","normal RICH");
-
- }
-
-
- if(iZDC) {
- //=================== ZDC parameters ============================
-
- AliZDC *ZDC = new AliZDCv2("ZDC","normal ZDC");
- }
-
- if(iCASTOR) {
- //=================== CASTOR parameters ============================
-
- AliCASTOR *CASTOR = new AliCASTORv1("CASTOR","normal CASTOR");
- }
-
- if(iTRD) {
- //=================== TRD parameters ============================
-
- AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
-
- // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
- TRD->SetGasMix(1);
-
- // With hole in front of PHOS
- TRD->SetPHOShole();
- // With hole in front of RICH
- TRD->SetRICHhole();
- // Switch on TR
- AliTRDsim *TRDsim = TRD->CreateTR();
- }
-
- if(iFMD) {
- //=================== FMD parameters ============================
-
- AliFMD *FMD = new AliFMDv1("FMD","normal FMD");
- FMD->SetRingsSi1(128);
- FMD->SetRingsSi2(64);
- FMD->SetSectorsSi1(20);
- FMD->SetSectorsSi2(24);
- }
-
- if(iMUON) {
- //=================== MUON parameters ===========================
-
- AliMUON *MUON = new AliMUONv1("MUON","default");
- }
-
- //=================== PHOS parameters ===========================
-
- if(iPHOS) {
- AliPHOS *PHOS = new AliPHOSv1("PHOS","GPS2");
- }
-
-
- if(iPMD) {
- //=================== PMD parameters ============================
-
- AliPMD *PMD = new AliPMDv1("PMD","normal PMD");
- PMD->SetPAR(1., 1., 0.8, 0.02);
- PMD->SetIN(6., 18., -580., 27., 27.);
- PMD->SetGEO(0.0, 0.2, 4.);
- PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
-
- }
-
- if(iSTART) {
- //=================== START parameters ============================
- AliSTART *START = new AliSTARTv1("START","START Detector");
- }
-
- } // end (!isSetInteractively)
-
-}
-
-Float_t EtaToTheta(Float_t arg){
- return (180./TMath::Pi())*2.*atan(exp(-arg));
+ gROOT->LoadMacro("g4ConfigCommon.C");
+ ConfigCommon(false);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff