1 // One can use the configuration macro in compiled mode by
2 // root [0] gSystem->Load("libgeant321");
3 // root [0] gSystem->SetIncludePath("-I$ROOTSYS/include -I$ALICE_ROOT/include\
4 // -I$ALICE_ROOT -I$ALICE/geant3/TGeant3");
5 // root [0] .x grun.C(1,"ConfigKr.C++")
7 #if !defined(__CINT__) || defined(__MAKECINT__)
11 #include <TVirtualMC.h>
12 #include <TGeant3TGeo.h>
13 #include "STEER/AliRunLoader.h"
14 #include "STEER/AliRun.h"
15 #include "STEER/AliConfig.h"
16 #include "PYTHIA6/AliDecayerPythia.h"
17 #include "EVGEN/AliGenCocktail.h"
18 #include "EVGEN/AliGenHIJINGpara.h"
19 #include "STEER/AliMagF.h"
20 #include "STRUCT/AliBODY.h"
21 #include "STRUCT/AliMAG.h"
22 #include "STRUCT/AliABSOv3.h"
23 #include "STRUCT/AliDIPOv3.h"
24 #include "STRUCT/AliHALLv3.h"
25 #include "STRUCT/AliFRAMEv2.h"
26 #include "STRUCT/AliSHILv3.h"
27 #include "STRUCT/AliPIPEv3.h"
28 #include "ITS/AliITSvPPRasymmFMD.h"
29 #include "TPC/AliTPCv2.h"
30 #include "TOF/AliTOFv6T0.h"
31 #include "HMPID/AliHMPIDv1.h"
32 #include "ZDC/AliZDCv2.h"
33 #include "TRD/AliTRDv1.h"
34 #include "FMD/AliFMDv1.h"
35 #include "MUON/AliMUONv1.h"
36 #include "PHOS/AliPHOSv1.h"
37 #include "PMD/AliPMDv1.h"
38 #include "T0/AliT0v1.h"
39 #include "EMCAL/AliEMCALv2.h"
40 #include "ACORDE/AliACORDEv1.h"
41 #include "VZERO/AliVZEROv7.h"
44 Float_t EtaToTheta(Float_t arg);
48 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
49 // Theta range given through pseudorapidity limits 22/6/2001
51 // Set Random Number seed
52 gRandom->SetSeed(123456); // Set 0 to use the currecnt time
53 AliLog::Message(AliLog::kInfo, Form("Seed for random number generation = %d",gRandom->GetSeed()), "Config.C", "Config.C", "Config()","Config.C", __LINE__);
56 // libraries required by geant321
58 gSystem->Load("libgeant321");
61 new TGeant3TGeo("C++ Interface to Geant3");
65 AliLog::Message(AliLog::kInfo, "Creating Run Loader", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
67 rl = AliRunLoader::Open("galice.root",
68 AliConfig::GetDefaultEventFolderName(),
72 gAlice->Fatal("Config.C","Can not instatiate the Run Loader");
75 rl->SetCompressionLevel(2);
76 rl->SetNumberOfEventsPerFile(3);
77 gAlice->SetRunLoader(rl);
79 // Set the trigger configuration
80 gAlice->SetTriggerDescriptor("Pb-Pb");
81 cout<<"Trigger configuration is set to Pb-Pb"<<endl;
84 // Set External decayer
85 TVirtualMCDecayer *decayer = new AliDecayerPythia();
87 decayer->SetForceDecay(kAll);
89 gMC->SetExternalDecayer(decayer);
90 //=======================================================================
91 // ************* STEERING parameters FOR ALICE SIMULATION **************
92 // --- Specify event type to be tracked through the ALICE setup
93 // --- All positions are in cm, angles in degrees, and P and E in GeV
96 gMC->SetProcess("DCAY",1);
97 gMC->SetProcess("PAIR",1);
98 gMC->SetProcess("COMP",1);
99 gMC->SetProcess("PHOT",1);
100 gMC->SetProcess("PFIS",0);
101 gMC->SetProcess("DRAY",0);
102 gMC->SetProcess("ANNI",1);
103 gMC->SetProcess("BREM",1);
104 gMC->SetProcess("MUNU",1);
105 gMC->SetProcess("CKOV",1);
106 gMC->SetProcess("HADR",1);
107 gMC->SetProcess("LOSS",2);
108 gMC->SetProcess("MULS",1);
109 gMC->SetProcess("RAYL",1);
111 Float_t cut = 1.e-3; // 1MeV cut by default
112 Float_t tofmax = 1.e10;
114 gMC->SetCut("CUTGAM", cut);
115 gMC->SetCut("CUTELE", cut);
116 gMC->SetCut("CUTNEU", cut);
117 gMC->SetCut("CUTHAD", cut);
118 gMC->SetCut("CUTMUO", cut);
119 gMC->SetCut("BCUTE", cut);
120 gMC->SetCut("BCUTM", cut);
121 gMC->SetCut("DCUTE", cut);
122 gMC->SetCut("DCUTM", cut);
123 gMC->SetCut("PPCUTM", cut);
124 gMC->SetCut("TOFMAX", tofmax);
127 AliGenCocktail *gener = new AliGenCocktail();
129 Int_t nKrDecays = 100; // number of Kr decays
130 for(Int_t i=0;i<nKrDecays;i++){
131 AliGenKrypton *krypton = new AliGenKrypton();
132 gener->AddGenerator(krypton,"Krypton",1);
137 TGeoGlobalMagField::Instance()->SetField(new AliMagF("Maps","Maps", 1., 1., AliMagF::k5kG));
139 // detectors - only the TPC is relevant
163 //=================== Alice BODY parameters =============================
164 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
168 //=================== MAG parameters ============================
169 // --- Start with Magnet since detector layouts may be depending ---
170 // --- on the selected Magnet dimensions ---
171 AliMAG *MAG = new AliMAG("MAG", "Magnet");
177 //=================== ABSO parameters ============================
178 AliABSO *ABSO = new AliABSOv3("ABSO", "Muon Absorber");
183 //=================== DIPO parameters ============================
185 AliDIPO *DIPO = new AliDIPOv3("DIPO", "Dipole version 3");
190 //=================== HALL parameters ============================
192 AliHALL *HALL = new AliHALLv3("HALL", "Alice Hall");
198 //=================== FRAME parameters ============================
200 AliFRAMEv2 *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
205 //=================== SHIL parameters ============================
207 AliSHIL *SHIL = new AliSHILv3("SHIL", "Shielding Version 3");
213 //=================== PIPE parameters ============================
215 AliPIPE *PIPE = new AliPIPEv3("PIPE", "Beam Pipe");
220 //=================== ITS parameters ============================
222 // As the innermost detector in ALICE, the Inner Tracking System "impacts" on
223 // almost all other detectors. This involves the fact that the ITS geometry
224 // still has several options to be followed in parallel in order to determine
225 // the best set-up which minimizes the induced background. All the geometries
226 // available to date are described in the following. Read carefully the comments
227 // and use the default version (the only one uncommented) unless you are making
228 // comparisons and you know what you are doing. In this case just uncomment the
229 // ITS geometry you want to use and run Aliroot.
231 // Detailed geometries:
235 AliITSvPPRasymmFMD *ITS = new AliITSvPPRasymmFMD("ITS","ITS PPR detailed version with asymmetric services");
236 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
237 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
238 // ITS->SetWriteDet("$ALICE_ROOT/ITS/ITSgeometry_vPPRasymm2.det"); // don't touch this parameter if you're not an ITS developer
239 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
240 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
241 ITS->SetThicknessChip1(150.); // chip thickness on layer 1 must be in the range [150,300]
242 ITS->SetThicknessChip2(150.); // chip thickness on layer 2 must be in the range [150,300]
243 ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
244 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
248 // Coarse geometries (warning: no hits are produced with these coarse geometries and they unuseful
249 // for reconstruction !):
252 //AliITSvPPRcoarseasymm *ITS = new AliITSvPPRcoarseasymm("ITS","New ITS PPR coarse version with asymmetric services");
253 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
254 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
256 //AliITS *ITS = new AliITSvPPRcoarsesymm("ITS","New ITS PPR coarse version with symmetric services");
257 //ITS->SetRails(0); // 1 --> rails in ; 0 --> rails out
258 //ITS->SetSupportMaterial(0); // 0 --> Copper ; 1 --> Aluminum ; 2 --> Carbon
262 // Geant3 <-> EUCLID conversion
263 // ============================
265 // SetEUCLID is a flag to output (=1) or not to output (=0) both geometry and
266 // media to two ASCII files (called by default ITSgeometry.euc and
267 // ITSgeometry.tme) in a format understandable to the CAD system EUCLID.
268 // The default (=0) means that you dont want to use this facility.
275 //============================ TPC parameters ===================
276 AliTPC *TPC = new AliTPCv4("TPC", "Default");
281 //=================== TOF parameters ============================
282 AliTOF *TOF = new AliTOFv6T0("TOF", "normal TOF");
288 //=================== HMPID parameters ===========================
289 AliHMPID *HMPID = new AliHMPIDv1("HMPID", "normal HMPID");
296 //=================== ZDC parameters ============================
298 AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC");
303 //=================== TRD parameters ============================
305 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
310 //=================== FMD parameters ============================
311 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
316 //=================== MUON parameters ===========================
317 // New MUONv1 version (geometry defined via builders)
318 AliMUON *MUON = new AliMUONv1("MUON", "default");
320 //=================== PHOS parameters ===========================
324 AliPHOS *PHOS = new AliPHOSv1("PHOS", "IHEP");
330 //=================== PMD parameters ============================
331 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
336 //=================== T0 parameters ============================
337 AliT0 *T0 = new AliT0v1("T0", "T0 Detector");
342 //=================== EMCAL parameters ============================
343 AliEMCAL *EMCAL = new AliEMCALv2("EMCAL", "EMCAL_COMPLETE");
348 //=================== ACORDE parameters ============================
349 AliACORDE *ACORDE = new AliACORDEv1("ACORDE", "normal ACORDE");
354 //=================== ACORDE parameters ============================
355 AliVZERO *VZERO = new AliVZEROv7("VZERO", "normal VZERO");
358 AliLog::Message(AliLog::kInfo, "End of Config", "Config.C", "Config.C", "Config()"," Config.C", __LINE__);
362 Float_t EtaToTheta(Float_t arg){
363 return (180./TMath::Pi())*2.*atan(exp(-arg));