From: hristov Date: Sat, 9 Nov 2002 19:15:21 +0000 (+0000) Subject: Adding Geant4 macros X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=commitdiff_plain;h=1fccbbe006d90c6159f58bc31325bde6880d4794 Adding Geant4 macros --- diff --git a/macros/g4Config.C b/macros/g4Config.C new file mode 100644 index 00000000000..a4e14f43b0a --- /dev/null +++ b/macros/g4Config.C @@ -0,0 +1,57 @@ +// $Id$ +// +// 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() +{ + // ============================= + // Geant4 + // ============================= + + // Load Geant4 + Geant4 VMC libraries + // + 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()"); + } + } + + // Create Geant4 VMC + // + if (!gMC) { + + TG4RunConfiguration* runConfiguration + = new TG4RunConfiguration(true); + + TGeant4* geant4 + = new TGeant4("TGeant4", "The Geant4 Monte Carlo", runConfiguration); + + cout << "Geant4 has been created." << endl; + } + else + cout << "Monte Carlo has been already created." << endl; + + // Switch on special cuts process + geant4->ProcessGeantCommand("/mcPhysics/setSpecialCuts true"); + + // ============================= + // AliRoot setup + // ============================= + + gROOT->LoadMacro("g4ConfigCommon.C"); + ConfigCommon(false); +} diff --git a/macros/g4ConfigCommon.C b/macros/g4ConfigCommon.C new file mode 100644 index 00000000000..d06d335f199 --- /dev/null +++ b/macros/g4ConfigCommon.C @@ -0,0 +1,416 @@ +// $Id$ +// +// AliRoot Configuration for running aliroot with Monte Carlo. +// Called from g4Config.C + +static Int_t eventsPerRun = 100; +enum PprGeo_t +{ + kHoles, kNoHoles +}; +static PprGeo_t geo = kHoles; + +void ConfigCommon(Bool_t interactiveSetup) +{ + // ============================= + // 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); + + // 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(); + // + // Activate this line if you want the vertex smearing to happen + // track by track + + //gener->SetVertexSmear(perTrack); + + // ============================= + // Magnetic field + // ============================= + + // Field (L3 0.4 T) + AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 2, 1., 10., 1); + rootfile->cd(); + gAlice->SetField(field); + + // Old magnetic field + //gAlice->SetField(-999,2); //Specify maximum magnetic field in Tesla (neg. ==> default field) + + // ============================= + // Alice modules + // ============================= + + if (!interactiveSetup) { + + // Select modules + Int_t iABSO=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; + Int_t iEMCAL = 1; + Int_t iCRT = 0; + Int_t iVZERO = 1; + + // ONLY FOR GEANT4 + + // Exclude detectors with temporary problem + iCRT = 0; + iEMCAL = 0; + + // END OF ONLY FOR GEANT4 + + + //=================== 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 ============================ + + AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame"); + if (geo == kHoles) { + FRAME->SetHoles(1); + } else { + FRAME->SetHoles(0); + } + } + + if (iSHIL) + { + //=================== SHIL parameters ============================ + + AliSHIL *SHIL = new AliSHILv2("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("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer + ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300] + ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300] + ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300] + ITS->SetThicknessChip2(200.); // chip thickness on layer 2 must be in the range [150,300] + ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out + ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon + // + //AliITSvPPRsymm *ITS = new AliITSvPPRsymm("ITS","New ITS PPR detailed version with symmetric services"); + //ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer + //ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer + //ITS->SetWriteDet("$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(0); // 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(0); // 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(0); // 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) + { + if (geo == kHoles) { + //=================== TOF parameters ============================ + AliTOF *TOF = new AliTOFv2FHoles("TOF", "TOF with Holes"); + } else { + AliTOF *TOF = new AliTOFv4T0("TOF", "normal TOF"); + } + } + + if (iRICH) + { + //=================== RICH parameters =========================== +/* + AliRICH *RICH = new AliRICHv3("RICH", "normal RICH"); +*/ + AliRICH *RICH = new AliRICHv1("RICH", "normal RICH"); + + } + + + if (iZDC) + { + //=================== ZDC parameters ============================ + + AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC"); + } + + 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); + if (geo == kHoles) { + // 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(256); + FMD->SetRingsSi2(128); + 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"); + } + + if (iSTART) + { + //=================== START parameters ============================ + AliSTART *START = new AliSTARTv1("START", "START Detector"); + } + + if (iEMCAL) + { + //=================== EMCAL parameters ============================ + AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "EMCALArch1a"); + } + + if (iCRT) + { + //=================== CRT parameters ============================ + + AliCRT *CRT = new AliCRTv0("CRT", "normal ACORDE"); + } + + if (iVZERO) + { + //=================== CRT parameters ============================ + AliVZERO *VZERO = new AliVZEROv2("VZERO", "normal VZERO"); + } + + } // end (!isSetInteractively) + else { + + if (geo == kHoles) + AliRunConfiguration::SwitchHoles(kTRUE); + else + AliRunConfiguration::SwitchHoles(kFALSE); + } +} + +Float_t EtaToTheta(Float_t arg){ + return (180./TMath::Pi())*2.*atan(exp(-arg)); +} diff --git a/macros/g4menu.C b/macros/g4menu.C new file mode 100644 index 00000000000..0f8eb4f2a42 --- /dev/null +++ b/macros/g4menu.C @@ -0,0 +1,76 @@ +// $Id$ +// +// Root macro that opens a mini GUI for running aliroot with Geant4. +// +// To run aliroot with Geant4 using the g4menu.C: +// aliroot +// root [0] .x g4menu.C +// --> Select "Init" and then "Run" button +// +// The the bar enables to start Geant4 interactive session: +// --> Select "Geant4UI" button and use Geant4 interactive commands; +// In case TGeant4 has not yet been created you need first +// select "Geant4" button before selecting "Geant4UI". +// To go back to Root UI, type exit. + + +#include + +void g4menu() +{ + + // 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()"); + + // Menu + TControlBar* menu = new TControlBar("vertical","Alice Geant4 menu"); + + menu->AddButton("Init", "gAlice->Init(\"g4Config.C\")", "Initialize \" AliRun \""); + menu->AddButton("Run", "gAlice->Run()", "Process Alice run"); + menu->AddButton("Geant4", "CreateGeant4()", "Create Geant4 only (without initializing AliRun)"); + menu->AddButton("Geant4UI", "StartGeant4UI()","Go to Geant4 Interactive session"); + gROOT->SaveContext(); + menu->Show(); +} + +void CreateGeant4() +{ + if (!gMC) { + + // TG4RunConfiguration for Geant4 + TG4RunConfiguration* runConfiguration + = new TG4RunConfiguration(true); + + // TGeant4 + TGeant4* geant4 + = new TGeant4("TGeant4", "The Geant4 Monte Carlo", runConfiguration); + + cout << "Geant4 has been created." << endl; + } + else { + cout << "Monte Carlo has been already created." << endl; + } +} + +void StartGeant4UI() +{ + if (gMC) { + // release Root terminal control + + // go into non-raw term mode + Getlinem(kCleanUp, 0); + + // add test if gMC is TGeant4 + TGeant4* g4 = (TGeant4*)gMC; + + g4->StartGeantUI(); + + // new Root prompt + Getlinem(kInit, ((TRint*)gROOT->GetApplication())->GetPrompt()); + } + else { + cout << "Monte Carlo has not been yet created." << endl; + } +}