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02a71a71 1void Config(){
2 // 7-DEC-2000 09:00
3 // Switch on Transition Radiation simulation. 6/12/00 18:00
4 // iZDC=1 7/12/00 09:00
5 // ThetaRange is (0., 180.). It was (0.28,179.72) 7/12/00 09:00
6 // Theta range given through pseudorapidity limits 22/6/2001
7
8 // Set Random Number seed
9 // gRandom->SetSeed(12345);
10
32d163bc 11 // libraries required by geant321
12 gSystem->Load("libgeant321");
13
14 new TGeant3("C++ Interface to Geant3");
02a71a71 15
16 if (!gSystem->Getenv("CONFIG_FILE"))
17 {
18 TFile *rootfile = new TFile("galice.root", "recreate");
19
20 rootfile->SetCompressionLevel(2);
21 }
22
23 TGeant3 *geant3 = (TGeant3 *) gMC;
24
25 //
26 // Set External decayer
27 AliDecayer *decayer = new AliDecayerPythia();
28
29 decayer->SetForceDecay(kAll);
30 decayer->Init();
31 gMC->SetExternalDecayer(decayer);
32 //
33 //
34 //=======================================================================
35 // ******* GEANT STEERING parameters FOR ALICE SIMULATION *******
36 geant3->SetTRIG(1); //Number of events to be processed
37 geant3->SetSWIT(4, 10);
38 geant3->SetDEBU(0, 0, 1);
39 //geant3->SetSWIT(2,2);
40 geant3->SetDCAY(1);
41 geant3->SetPAIR(1);
42 geant3->SetCOMP(1);
43 geant3->SetPHOT(1);
44 geant3->SetPFIS(0);
45 geant3->SetDRAY(0);
46 geant3->SetANNI(1);
47 geant3->SetBREM(1);
48 geant3->SetMUNU(1);
49 geant3->SetCKOV(1);
50 geant3->SetHADR(1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
51 geant3->SetLOSS(2);
52 geant3->SetMULS(1);
53 geant3->SetRAYL(1);
54 geant3->SetAUTO(1); //Select automatic STMIN etc... calc. (AUTO 1) or manual (AUTO 0)
55 geant3->SetABAN(0); //Restore 3.16 behaviour for abandoned tracks
56 geant3->SetOPTI(2); //Select optimisation level for GEANT geometry searches (0,1,2)
57 geant3->SetERAN(5.e-7);
58
59 Float_t cut = 1.e-3; // 1MeV cut by default
60 Float_t tofmax = 1.e10;
61
62 // GAM ELEC NHAD CHAD MUON EBREM MUHAB EDEL MUDEL MUPA TOFMAX
63 geant3->SetCUTS(cut, cut, cut, cut, cut, cut, cut, cut, cut, cut,
64 tofmax);
65 //
66 //=======================================================================
67 // ************* STEERING parameters FOR ALICE SIMULATION **************
68 // --- Specify event type to be tracked through the ALICE setup
69 // --- All positions are in cm, angles in degrees, and P and E in GeV
70 if (gSystem->Getenv("CONFIG_NPARTICLES")){
71 int nParticles = atoi(gSystem->Getenv("CONFIG_NPARTICLES"));
72 }else{
73 int nParticles = 2;
74 } // end if
75//*********************************************
76// Example for Fixed Particle Gun
77//*********************************************
78 AliGenFixed *gener = new AliGenFixed(nParticles);
79 gener->SetMomentum(50);
80 gener->SetPhi(180.);
81 gener->SetTheta(95.);
82 gener->SetOrigin(0,0,0); //vertex position
83 gener->SetPart(13); //GEANT particle type
84 gener->Init();
85 //
86 // Activate this line if you want the vertex smearing to happen
87 // track by track
88 //
89 //gener->SetVertexSmear(perTrack);
90
91 gAlice->SetField(-999, 2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
92
93 Int_t iABSO = 1;
94 Int_t iDIPO = 1;
95 Int_t iFMD = 1;
96 Int_t iFRAME = 1;
97 Int_t iHALL = 1;
98 Int_t iITS = 1;
99 Int_t iMAG = 1;
100 Int_t iMUON = 1;
101 Int_t iPHOS = 1;
102 Int_t iPIPE = 1;
103 Int_t iPMD = 1;
104 Int_t iRICH = 1;
105 Int_t iSHIL = 1;
106 Int_t iSTART = 1;
107 Int_t iTOF = 1;
108 Int_t iTPC = 1;
109 Int_t iTRD = 1;
110 Int_t iZDC = 1;
111 Int_t iEMCAL = 1;
112
113 //=================== Alice BODY parameters =============================
114 AliBODY *BODY = new AliBODY("BODY", "Alice envelop");
115
116 if (iMAG){
117 //=================== MAG parameters ============================
118 // --- Start with Magnet since detector layouts may be depending ---
119 // --- on the selected Magnet dimensions ---
120 AliMAG *MAG = new AliMAG("MAG", "Magnet");
121 }
122 if (iABSO){
123 //=================== ABSO parameters ============================
124 AliABSO *ABSO = new AliABSOv0("ABSO", "Muon Absorber");
125 }
126 if (iDIPO){
127 //=================== DIPO parameters ============================
128 AliDIPO *DIPO = new AliDIPOv2("DIPO", "Dipole version 2");
129 }
130 if (iHALL){
131 //=================== HALL parameters ============================
132 AliHALL *HALL = new AliHALL("HALL", "Alice Hall");
133 }
134 if (iFRAME){
135 //=================== FRAME parameters ============================
136 AliFRAME *FRAME = new AliFRAMEv2("FRAME", "Space Frame");
137 }
138 if (iSHIL){
139 //=================== SHIL parameters ============================
140 AliSHIL *SHIL = new AliSHILvF("SHIL", "Shielding");
141 }
142 if (iPIPE){
143 //=================== PIPE parameters ============================
144 AliPIPE *PIPE = new AliPIPEv0("PIPE", "Beam Pipe");
145 }
146 if(iITS) {
147 //=================== ITS parameters ============================
148 //
149 // As the innermost detector in ALICE, the Inner Tracking System
150 // "impacts" on almost all other detectors. This involves the fact
151 // that the ITS geometry still has several options to be followed
152 //in parallel in order to determine the best set-up which minimizes
153 // the induced background. All the geometries available to date are
154 // described in the following. Read carefully the comments and use
155 // the default version (the only one uncommented) unless you are making
156 // comparisons and you know what you are doing. In this case just
157 // uncomment the ITS geometry you want to use and run Aliroot.
158 // Detailed geometries:
159 AliITSvPPRasymm *ITS = new AliITSvPPRasymm("ITS","New ITS PPR detailed version with asymmetric services");
160 ITS->SetMinorVersion(2); // don't touch this parameter if you're not an ITS developer
161 ITS->SetReadDet(kFALSE); // don't touch this parameter if you're not an ITS developer
162 ITS->SetThicknessDet1(200.); // detector thickness on layer 1 must be in the range [100,300]
163 ITS->SetThicknessDet2(200.); // detector thickness on layer 2 must be in the range [100,300]
164 ITS->SetThicknessChip1(200.); // chip thickness on layer 1 must be in the range [150,300]
165 ITS->SetThicknessChip2(200.);// chip thickness on layer 2 must be in the range [150,300]
166 ITS->SetRails(1); // 1 --> rails in ; 0 --> rails out
167 ITS->SetCoolingFluid(1); // 1 --> water ; 0 --> freon
168 // Geant3 <-> EUCLID conversion
169 // ============================
170 // SetEUCLID is a flag to output (=1) or not to output (=0) both
171 // geometry and media to two ASCII files (called by default
172 // ITSgeometry.euc and ITSgeometry.tme) in a format understandable
173 // to the CAD system EUCLID. The default (=0) means that you dont
174 // want to use this facility.
175 ITS->SetEUCLID(0);
176 }
177 if (iTPC){
178 //============================ TPC parameters =========================
179 // This allows the user to specify sectors for the SLOW (TPC geometry
180 // 2) Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
181 // sectors are specified, any value other than that requires at least
182 // one sector (lower or upper)to be specified!
183 // Reminder: sectors 1-24 are lower sectors ( 1-12->z>0,13-24->z<0)
184 // sectors 25-72 are the upper ones (25-48->z>0,49-72->z<0)
185 // SecLows - number of lower sectors specified (up to 6)
186 // SecUps - number of upper sectors specified (up to 12)
187 // Sens - sensitive strips for the Slow Simulator !!!
188 // This does NOT work if all S or L-sectors are specified, i.e.
189 // if SecAL or SecAU < 0
190 //---------------------------------------------------------------------
191 // gROOT->LoadMacro("SetTPCParam.C");
192 // AliTPCParam *param = SetTPCParam();
193 AliTPC *TPC = new AliTPCv2("TPC", "Default");
194 // All sectors included
195 TPC->SetSecAL(-1);
196 TPC->SetSecAU(-1);
197 }
198 if (iTOF){
199 //=================== TOF parameters ============================
200 AliTOF *TOF = new AliTOFv2("TOF", "normal TOF");
201 }
202 if (iRICH){
203 //=================== RICH parameters ===========================
290acc32 204 AliRICH *RICH = new AliRICHv3("RICH", "normal RICH");
02a71a71 205 }
206 if (iZDC){
207 //=================== ZDC parameters ============================
208 AliZDC *ZDC = new AliZDCv2("ZDC", "normal ZDC");
209 }
210 if (iTRD){
211 //=================== TRD parameters ============================
212 AliTRD *TRD = new AliTRDv1("TRD", "TRD slow simulator");
213 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe +
214 // 10% CO2)
215 TRD->SetGasMix(1);
216 // With hole in front of PHOS
217 TRD->SetPHOShole();
218 // With hole in front of RICH
219 TRD->SetRICHhole();
220 // Switch on TR
221 AliTRDsim *TRDsim = TRD->CreateTR();
222 }
223 if (iFMD){
224 //=================== FMD parameters ============================
225 AliFMD *FMD = new AliFMDv1("FMD", "normal FMD");
226 FMD->SetRingsSi1(256);
227 FMD->SetRingsSi2(64);
228 FMD->SetSectorsSi1(20);
229 FMD->SetSectorsSi2(24);
230 }
231 if (iMUON){
232 //=================== MUON parameters ===========================
233 AliMUON *MUON = new AliMUONv1("MUON", "default");
234 }
235 if (iPHOS){
236 //=================== PHOS parameters ===========================
237 AliPHOS *PHOS = new AliPHOSv1("PHOS", "GPS2");
238 }
239 if (iPMD){
240 //=================== PMD parameters ============================
241 AliPMD *PMD = new AliPMDv1("PMD", "normal PMD");
242 PMD->SetPAR(1., 1., 0.8, 0.02);
243 PMD->SetIN(6., 18., -580., 27., 27.);
244 PMD->SetGEO(0.0, 0.2, 4.);
245 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
246 }
247 if (iEMCAL){
248 //=================== EMCAL parameters ============================
249 AliEMCAL *EMCAL = new AliEMCALv1("EMCAL", "EMCALArch1a");
250 }
251 if (iSTART){
252 //=================== START parameters ============================
253 AliSTART *START = new AliSTARTv1("START", "START Detector");
254 }
255}
256//----------------------------------------------------------------------
257Float_t EtaToTheta(Float_t arg){
258 return (180./TMath::Pi())*2.*atan(exp(-arg));
259}