3 // =============================
5 // =============================
7 // Create the output file
8 TFile *rootfile = new TFile("galice.root","recreate");
9 rootfile->SetCompressionLevel(2);
11 // =============================
13 // =============================
15 // load Geant4 and AliRoot steer libraries
16 gROOT->LoadMacro("g4libs.C");
17 gInterpreter->ProcessLine("g4libs()");
18 gInterpreter->ProcessLine("steerlibs()");
21 gROOT->LoadMacro("g4menu.C");
22 gInterpreter->ProcessLine("CreateGeant4()");
24 // Physics process control
26 gMC ->SetProcess("DCAY",1);
27 gMC ->SetProcess("PAIR",1);
28 gMC ->SetProcess("COMP",1);
29 //gMC ->SetProcess("PHOT",1);
30 gMC ->SetProcess("PFIS",0);
31 gMC ->SetProcess("DRAY",0);
32 gMC ->SetProcess("ANNI",1);
33 gMC ->SetProcess("BREM",1);
34 gMC ->SetProcess("MUNU",1);
35 //xx gMC ->SetProcess("CKOV",1);
36 gMC ->SetProcess("HADR",1); //Select pure GEANH (HADR 1) or GEANH/NUCRIN (HADR 3)
37 gMC ->SetProcess("LOSS",2);
38 gMC ->SetProcess("MULS",1);
39 //xx gMC ->SetProcess("RAYL",1);
43 Float_t cut = 1.e-3; // 1MeV cut by default
44 gMC ->SetCut("CUTGAM",cut);
45 gMC ->SetCut("CUTELE",cut);
46 gMC ->SetCut("CUTNEU",cut);
47 gMC ->SetCut("CUTHAD",cut);
48 gMC ->SetCut("CUTMUO",cut);
49 gMC ->SetCut("BCUTE",cut);
50 gMC ->SetCut("BCUTM",cut);
51 gMC ->SetCut("DCUTE",cut);
52 gMC ->SetCut("DCUTM",cut);
53 //xx gMC ->SetCut("PPCUTM",cut);
55 // =============================
57 // =============================
59 // --- Specify event type to be tracked through the ALICE setup
60 // --- All positions are in cm, angles in degrees, and P and E in GeV
62 AliGenHIJINGpara *gener = new AliGenHIJINGpara(50);
63 gener->SetMomentumRange(0,999);
64 gener->SetPhiRange(0,360);
65 gener->SetThetaRange(10,170);
66 gener->SetOrigin(0,0,0); //vertex position
67 gener->SetSigma(0,0,0); //Sigma in (X,Y,Z) (cm) on IP position
70 // Activate this line if you want the vertex smearing to happen
73 //gener->SetVertexSmear(perTrack);
75 // =============================
77 // =============================
79 //?? gAlice->SetField(-999,2); //Specify maximum magnetic field in Tesla (neg. ==> default field)
81 // =============================
83 // =============================
85 //Bool_t isSetInteractively = false;
86 Bool_t isSetInteractively = true;
88 if (!isSetInteractively) {
90 // Load modules libraries
91 gInterpreter->ProcessLine("detlibs()");
115 // Exclude detectors that do not work with Geant4
121 // Without any modification
123 //=================== Alice BODY parameters =============================
124 AliBODY *BODY = new AliBODY("BODY","Alice envelop");
128 //=================== MAG parameters ============================
129 // --- Start with Magnet since detector layouts may be depending ---
130 // --- on the selected Magnet dimensions ---
131 AliMAG *MAG = new AliMAG("MAG","Magnet");
136 //=================== ABSO parameters ============================
137 AliABSO *ABSO = new AliABSOv0("ABSO","Muon Absorber");
141 //=================== DIPO parameters ============================
143 AliDIPO *DIPO = new AliDIPOv2("DIPO","Dipole version 2");
147 //=================== HALL parameters ============================
149 AliHALL *HALL = new AliHALL("HALL","Alice Hall");
154 //=================== FRAME parameters ============================
156 AliFRAME *FRAME = new AliFRAMEv1("FRAME","Space Frame");
161 //=================== SHIL parameters ============================
163 AliSHIL *SHIL = new AliSHILv0("SHIL","Shielding");
168 //=================== PIPE parameters ============================
170 AliPIPE *PIPE = new AliPIPEv0("PIPE","Beam Pipe");
175 //=================== ITS parameters ============================
177 // EUCLID is a flag to output (=1) both geometry and media to two ASCII files
178 // (called by default ITSgeometry.euc and ITSgeometry.tme) in a format
179 // understandable to the CAD system EUCLID. The default (=0) means that you
180 // dont want to use this facility.
182 AliITS *ITS = new AliITSv5("ITS","normal ITS");
188 //============================ TPC parameters ================================
189 // --- This allows the user to specify sectors for the SLOW (TPC geometry 2)
190 // --- Simulator. SecAL (SecAU) <0 means that ALL lower (upper)
191 // --- sectors are specified, any value other than that requires at least one
192 // --- sector (lower or upper)to be specified!
193 // --- Reminder: sectors 1-24 are lower sectors (1-12 -> z>0, 13-24 -> z<0)
194 // --- sectors 25-72 are the upper ones (25-48 -> z>0, 49-72 -> z<0)
195 // --- SecLows - number of lower sectors specified (up to 6)
196 // --- SecUps - number of upper sectors specified (up to 12)
197 // --- Sens - sensitive strips for the Slow Simulator !!!
198 // --- This does NOT work if all S or L-sectors are specified, i.e.
199 // --- if SecAL or SecAU < 0
202 //-----------------------------------------------------------------------------
204 gROOT->LoadMacro("SetTPCParam.C");
205 AliTPCParam *param = SetTPCParam();
206 AliTPC *TPC = new AliTPCv1("TPC","Normal TPC"); //v1 is default
207 TPC->SetParam(param); // pass the parameter object to the TPC
211 TPC->SetGasMixt(2,20,10,-1,0.9,0.1,0.);
214 TPC->SetSecLows(1, 2, 3, 19, 20, 21);
215 TPC->SetSecUps(37, 38, 39, 37+18, 38+18, 39+18, -1, -1, -1, -1, -1, -1);
218 if (TPC->IsVersion()==1) param->Write(param->GetTitle());
222 //=================== TOF parameters ============================
223 AliTOF *TOF = new AliTOFv1("TOF","normal TOF");
227 //=================== RICH parameters ===========================
228 AliRICH *RICH = new AliRICHv0("RICH","normal RICH");
232 // Default Segmentation
233 AliRICHSegmentationV0* SegmentationV0 = new AliRICHSegmentationV0;
235 // Segmentation parameters
236 SegmentationV0->SetPadSize(0.84,0.80);
237 SegmentationV0->SetDAnod(0.84/2);
239 // Geometry parameters
240 AliRICHGeometry* GeometryV0 = new AliRICHGeometryV0;
241 GeometryV0->SetGapThickness(7.6);
242 GeometryV0->SetProximityGapThickness(.4);
243 GeometryV0->SetQuartzLength(131);
244 GeometryV0->SetQuartzWidth(126.2);
245 GeometryV0->SetQuartzThickness(.5);
246 GeometryV0->SetOuterFreonLength(131);
247 GeometryV0->SetOuterFreonWidth(40.3);
248 GeometryV0->SetInnerFreonLength(131);
249 GeometryV0->SetInnerFreonWidth(40.3);
250 GeometryV0->SetFreonThickness(1);
252 // Response parameters
253 AliRICHResponseV0* Rresponse0 = new AliRICHResponseV0;
254 Rresponse0->SetSigmaIntegration(5.);
255 Rresponse0->SetChargeSlope(41.);
256 Rresponse0->SetChargeSpread(0.18, 0.18);
257 Rresponse0->SetMaxAdc(1024);
258 Rresponse0->SetAlphaFeedback(0.05);
259 Rresponse0->SetEIonisation(26.e-9);
260 Rresponse0->SetSqrtKx3(0.77459667);
261 Rresponse0->SetKx2(0.962);
262 Rresponse0->SetKx4(0.379);
263 Rresponse0->SetSqrtKy3(0.77459667);
264 Rresponse0->SetKy2(0.962);
265 Rresponse0->SetKy4(0.379);
266 Rresponse0->SetPitch(0.25);
269 for (Int_t i=0; i<7; i++) {
270 RICH->SetGeometryModel(i,GeometryV0);
271 RICH->SetSegmentationModel(i, SegmentationV0);
272 RICH->SetResponseModel(i, Rresponse0);
279 //=================== ZDC parameters ============================
281 AliZDC *ZDC = new AliZDCv1("ZDC","normal ZDC");
285 //=================== CASTOR parameters ============================
287 AliCASTOR *CASTOR = new AliCASTORv1("CASTOR","normal CASTOR");
291 //=================== TRD parameters ============================
293 AliTRD *TRD = new AliTRDv0("TRD","TRD fast simulator");
296 //AliTRD *TRD = new AliTRDv1("TRD","TRD slow simulator");
297 //TRD->SetSensPlane(0);
298 //TRD->SetSensChamber(2);
299 //TRD->SetSensSector(17);
301 // Select the gas mixture (0: 97% Xe + 3% isobutane, 1: 90% Xe + 10% CO2)
304 // With hole in front of PHOS
306 // With hole in front of RICH
311 //=================== FMD parameters ============================
313 AliFMD *FMD = new AliFMDv1("FMD","normal FMD");
317 //=================== MUON parameters ===========================
319 AliMUON *MUON = new AliMUONv0("MUON","normal MUON");
321 MUON->SetMaxStepGas(0.1);
322 MUON->SetMaxStepAlu(0.1);
326 // First define the number of planes that are segmented (1 or 2) by a call
328 // Then chose for each chamber (chamber plane) the segmentation
329 // and response model.
330 // They should be equal for the two chambers of each station. In a future
331 // version this will be enforced.
337 AliMUONresponseV0* response0 = new AliMUONresponseV0;
338 response0->SetSqrtKx3(0.7131);
339 response0->SetKx2(1.0107);
340 response0->SetKx4(0.4036);
341 response0->SetSqrtKy3(0.7642);
342 response0->SetKy2(0.9706);
343 response0->SetKy4(0.3831);
344 response0->SetPitch(0.25);
345 response0->SetSigmaIntegration(10.);
346 response0->SetChargeSlope(50);
347 response0->SetChargeSpread(0.18, 0.18);
348 response0->SetMaxAdc(4096);
349 //--------------------------------------------------------
350 // Configuration for Chamber TC1/2 (Station 1) ----------
351 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
352 // Float_t rseg1[4]={17.5, 55.2, 71.3, 95.5};
353 Float_t rseg1[4]={15.5, 55.2, 71.3, 95.5};
354 Int_t nseg1[4]={4, 4, 2, 1};
358 MUON->SetNsec(chamber-1,2);
360 AliMUONsegmentationV01 *seg11=new AliMUONsegmentationV01;
362 seg11->SetSegRadii(rseg1);
363 seg11->SetPADSIZ(3, 0.5);
364 seg11->SetDAnod(3.0/3./4);
365 seg11->SetPadDivision(nseg1);
367 MUON->SetSegmentationModel(chamber-1, 1, seg11);
369 AliMUONsegmentationV02 *seg12=new AliMUONsegmentationV02;
370 seg12->SetSegRadii(rseg1);
371 seg12->SetPADSIZ(0.75, 2.0);
372 seg12->SetDAnod(3.0/3./4);
373 seg12->SetPadDivision(nseg1);
375 MUON->SetSegmentationModel(chamber-1, 2, seg12);
377 MUON->SetResponseModel(chamber-1, response0);
382 MUON->SetNsec(chamber-1,2);
384 AliMUONsegmentationV01 *seg21=new AliMUONsegmentationV01;
385 seg21->SetSegRadii(rseg1);
386 seg21->SetPADSIZ(3, 0.5);
387 seg21->SetDAnod(3.0/3./4);
388 seg21->SetPadDivision(nseg1);
389 MUON->SetSegmentationModel(chamber-1, 1, seg21);
391 AliMUONsegmentationV02 *seg22=new AliMUONsegmentationV02;
392 seg22->SetSegRadii(rseg1);
393 seg22->SetPADSIZ(0.75, 2.);
394 seg22->SetDAnod(3.0/3./4);
395 seg22->SetPadDivision(nseg1);
396 MUON->SetSegmentationModel(chamber-1, 2, seg22);
398 MUON->SetResponseModel(chamber-1, response0);
400 //--------------------------------------------------------
401 // Configuration for Chamber TC3/4 -----------------------
402 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
403 // Float_t rseg2[4]={23.5, 47.1, 87.7, 122.5};
404 Float_t rseg2[4]={21.5, 47.1, 87.7, 122.5};
405 Int_t nseg2[4]={4, 4, 2, 1};
409 MUON->SetNsec(chamber-1,2);
411 AliMUONsegmentationV01 *seg31=new AliMUONsegmentationV01;
412 seg31->SetSegRadii(rseg2);
413 seg31->SetPADSIZ(3, 0.5);
414 seg31->SetDAnod(3.0/3./4);
415 seg31->SetPadDivision(nseg2);
416 MUON->SetSegmentationModel(chamber-1, 1, seg31);
418 AliMUONsegmentationV02 *seg32=new AliMUONsegmentationV02;
419 seg32->SetSegRadii(rseg2);
420 seg32->SetPADSIZ(0.75, 2.);
421 seg32->SetPadDivision(nseg2);
422 seg32->SetDAnod(3.0/3./4);
424 MUON->SetSegmentationModel(chamber-1, 2, seg32);
426 MUON->SetResponseModel(chamber-1, response0);
431 MUON->SetNsec(chamber-1,2);
433 AliMUONsegmentationV01 *seg41=new AliMUONsegmentationV01;
434 seg41->SetSegRadii(rseg2);
435 seg41->SetPADSIZ(3, 0.5);
436 seg41->SetDAnod(3.0/3./4);
437 seg41->SetPadDivision(nseg2);
438 MUON->SetSegmentationModel(chamber-1, 1, seg41);
440 AliMUONsegmentationV02 *seg42=new AliMUONsegmentationV02;
441 seg42->SetSegRadii(rseg2);
442 seg42->SetPADSIZ(0.75, 2.);
443 seg42->SetPadDivision(nseg2);
444 seg42->SetDAnod(3.0/3./4);
446 MUON->SetSegmentationModel(chamber-1, 2, seg42);
448 MUON->SetResponseModel(chamber-1, response0);
451 //--------------------------------------------------------
452 // Configuration for Chamber TC5/6 -----------------------
453 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
455 seg5 = new AliMUONsegmentationV1;
456 AliMUONresponseV0* response5 = new AliMUONresponseV0;
458 response5->SetSqrtKx3(0.78740079);
459 response5->SetKx2(0.95237319); // 0.5 * kPI * (1- 0.5*sqrtky3 )
460 response5->SetKx4(0.37480633); // 0.25/TMath::ATan(sqrtkx3)
462 response5->SetSqrtKy3(0.74161985);
463 response5->SetKy2(0.98832946);
464 response5->SetKy4(0.39177817);
465 response5->SetPitch(0.325);
466 response5->SetSigmaIntegration(10.);
467 response5->SetChargeSlope(50);
468 response5->SetChargeSpread(0.4, 0.4);
469 response5->SetMaxAdc(4096);
472 MUON->SetNsec(chamber-1,1);
473 MUON->SetSegmentationModel(chamber-1, 1, seg5);
474 MUON->SetResponseModel(chamber-1, response5);
477 MUON->SetNsec(chamber-1,1);
478 MUON->SetSegmentationModel(chamber-1, 1, seg5);
479 MUON->SetResponseModel(chamber-1, response5);
483 MUON->SetPADSIZ(station, 1, 0.975, 0.55);
488 MUON->SetNsec(chamber-1,2);
490 AliMUONsegmentationV0 *seg51=new AliMUONsegmentationV0;
491 seg51->SetPADSIZ(0.75, 0.5);
492 seg51->SetDAnod(3.0/3./4);
493 MUON->SetSegmentationModel(chamber-1, 1, seg51);
495 AliMUONsegmentationV0 *seg52=new AliMUONsegmentationV0;
496 seg52->SetPADSIZ(0.5,0.75);
497 seg52->SetDAnod(3.0/3./4);
498 MUON->SetSegmentationModel(chamber-1, 2, seg52);
500 MUON->SetResponseModel(chamber-1, response0);
504 MUON->SetNsec(chamber-1,2);
506 AliMUONsegmentationV0 *seg61=new AliMUONsegmentationV0;
507 seg61->SetPADSIZ(0.75, 0.5);
508 seg61->SetDAnod(3.0/3./4);
509 MUON->SetSegmentationModel(chamber-1, 1, seg61);
511 AliMUONsegmentationV0 *seg62=new AliMUONsegmentationV0;
512 seg62->SetPADSIZ(0.5,0.75);
513 seg62->SetDAnod(3.0/3./4);
514 MUON->SetSegmentationModel(chamber-1, 2, seg62);
516 MUON->SetResponseModel(chamber-1, response0);
518 //--------------------------------------------------------
519 // Configuration for Chamber TC7/8 (Station 4) ----------
520 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
522 Int_t nseg4[4]={4, 4, 2, 1};
526 MUON->SetNsec(chamber-1,2);
528 AliMUONsegmentationV04 *seg71=new AliMUONsegmentationV04;
529 seg71->SetPADSIZ(10.,0.5);
530 seg71->SetDAnod(0.25);
531 seg71->SetPadDivision(nseg4);
532 MUON->SetSegmentationModel(chamber-1, 1, seg71);
534 AliMUONsegmentationV05 *seg72=new AliMUONsegmentationV05;
535 seg72->SetPADSIZ(1,10);
536 seg72->SetDAnod(0.25);
537 seg72->SetPadDivision(nseg4);
538 MUON->SetSegmentationModel(chamber-1, 2, seg72);
540 MUON->SetResponseModel(chamber-1, response0);
544 MUON->SetNsec(chamber-1,2);
545 AliMUONsegmentationV04 *seg81=new AliMUONsegmentationV04;
546 seg81->SetPADSIZ(10., 0.5);
547 seg81->SetPadDivision(nseg4);
548 seg81->SetDAnod(0.25);
549 MUON->SetSegmentationModel(chamber-1, 1, seg81);
551 AliMUONsegmentationV05 *seg82=new AliMUONsegmentationV05;
552 seg82->SetPADSIZ(1, 10);
553 seg82->SetPadDivision(nseg4);
554 seg82->SetDAnod(0.25);
555 MUON->SetSegmentationModel(chamber-1, 2, seg82);
557 MUON->SetResponseModel(chamber-1, response0);
558 //--------------------------------------------------------
559 // Configuration for Chamber TC9/10 (Station 5) ---------
560 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
563 MUON->SetNsec(chamber-1,2);
565 AliMUONsegmentationV04 *seg91=new AliMUONsegmentationV04;
566 seg91->SetPADSIZ(10.,0.5);
567 seg91->SetDAnod(0.25);
568 seg91->SetPadDivision(nseg4);
569 MUON->SetSegmentationModel(chamber-1, 1, seg91);
571 AliMUONsegmentationV05 *seg92=new AliMUONsegmentationV05;
572 seg92->SetPADSIZ(1,10);
573 seg92->SetDAnod(0.25);
574 seg92->SetPadDivision(nseg4);
576 MUON->SetSegmentationModel(chamber-1, 2, seg92);
578 MUON->SetResponseModel(chamber-1, response0);
582 MUON->SetNsec(chamber-1,2);
583 AliMUONsegmentationV04 *seg101=new AliMUONsegmentationV04;
584 seg101->SetPADSIZ(10., 0.5);
585 seg101->SetPadDivision(nseg4);
586 seg101->SetDAnod(0.25);
587 MUON->SetSegmentationModel(chamber-1, 1, seg101);
589 AliMUONsegmentationV05 *seg102=new AliMUONsegmentationV05;
590 seg102->SetPADSIZ(1,10);
591 seg102->SetPadDivision(nseg4);
592 seg102->SetDAnod(0.25);
593 MUON->SetSegmentationModel(chamber-1, 2, seg102);
595 MUON->SetResponseModel(chamber-1, response0);
596 //--------------------------------------------------------
597 // Configuration for Trigger staions ---------------------
598 // (not yet used/implemented) ----------------------------
599 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
602 MUON->SetNsec(chamber-1,1);
603 AliMUONsegmentationV0 *seg1112=new AliMUONsegmentationV0;
604 seg1112->SetDAnod(0.51/3.);
606 MUON->SetSegmentationModel(chamber-1, 1, seg1112);
607 MUON->SetResponseModel(chamber-1, response0);
610 MUON->SetNsec(chamber-1,1);
611 MUON->SetSegmentationModel(chamber-1, 1, seg1112);
612 MUON->SetResponseModel(chamber-1, response0);
616 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
619 MUON->SetNsec(chamber-1,1);
620 AliMUONsegmentationV0 *seg1314=new AliMUONsegmentationV0;
621 seg1314->SetDAnod(0.51/3.);
623 MUON->SetSegmentationModel(chamber-1, 1, seg1314);
624 MUON->SetResponseModel(chamber-1, response0);
627 MUON->SetNsec(chamber-1,1);
628 MUON->SetSegmentationModel(chamber-1, 1, seg1314);
629 MUON->SetResponseModel(chamber-1, response0);
633 MUON->SetPADSIZ(station, 1, 0.75, 0.5);
636 //=================== PHOS parameters ===========================
639 AliPHOS *PHOS = new AliPHOSv0("PHOS","GPS2");
644 //=================== PMD parameters ============================
646 AliPMD *PMD = new AliPMDv0("PMD","normal PMD");
647 PMD->SetPAR(1., 1., 0.8, 0.02);
648 PMD->SetIN(6., 18., -580., 27., 27.);
649 PMD->SetGEO(0.0, 0.2, 4.);
650 PMD->SetPadSize(0.8, 1.0, 1.0, 1.5);
655 //=================== START parameters ============================
656 AliSTART *START = new AliSTARTv0("START","START Detector");
660 } // end (!isSetInteractively)