1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.10 2000/06/26 14:02:38 morsch
19 Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
21 Revision 1.9 2000/06/15 07:58:49 morsch
22 Code from MUON-dev joined
24 Revision 1.8.4.9 2000/06/12 19:20:49 morsch
25 Constructor sets default geometry, segmentation and response parameters.
27 Revision 1.8.4.8 2000/06/09 21:55:28 morsch
28 Most coding rule violations corrected.
30 Revision 1.8.4.7 2000/05/02 13:15:18 morsch
31 Coding rule violations RS3, RN13 corected
33 Revision 1.8.4.6 2000/05/02 10:24:26 morsch
34 Public access to fdGas and fdAlu of AliMUONChamber replaced by getters.
36 Revision 1.8.4.5 2000/04/26 19:58:47 morsch
37 Obsolete reference to trig_ removed.
39 Revision 1.8.4.4 2000/04/19 19:42:47 morsch
42 Revision 1.8.4.3 2000/02/17 08:17:43 morsch
43 Gammas and neutrons are also scored in the stepmanager
46 /////////////////////////////////////////////////////////
47 // Manager and hits classes for set:MUON version 0 //
48 /////////////////////////////////////////////////////////
53 #include <TLorentzVector.h>
56 #include "AliMUONv0.h"
57 #include "AliMUONChamber.h"
60 #include "AliMUONHit.h"
61 #include "AliMUONPadHit.h"
62 #include "AliCallf77.h"
64 #include "AliMUONResponseV0.h"
65 #include "AliMUONResponseTrigger.h"
66 #include "AliMUONSegmentationV0.h"
67 #include "AliMUONSegmentationV01.h"
68 #include "AliMUONSegmentationV02.h"
69 #include "AliMUONSegmentationV04.h"
70 #include "AliMUONSegmentationV05.h"
71 #include "AliMUONSegmentationTrigger.h"
72 #include "AliMUONSegmentationTriggerX.h"
73 #include "AliMUONSegmentationTriggerY.h"
74 #include "AliMUONConstants.h"
78 //___________________________________________
79 AliMUONv0::AliMUONv0() : AliMUON()
85 //___________________________________________
86 AliMUONv0::AliMUONv0(const char *name, const char *title)
96 // First define the number of planes that are segmented (1 or 2) by a call
98 // Then chose for each chamber (chamber plane) the segmentation
99 // and response model.
100 // They should be equal for the two chambers of each station. In a future
101 // version this will be enforced.
107 AliMUONResponseV0* response0 = new AliMUONResponseV0;
108 response0->SetSqrtKx3(0.7131);
109 response0->SetKx2(1.0107);
110 response0->SetKx4(0.4036);
111 response0->SetSqrtKy3(0.7642);
112 response0->SetKy2(0.9706);
113 response0->SetKy4(0.3831);
114 response0->SetPitch(0.25);
115 response0->SetSigmaIntegration(10.);
116 response0->SetChargeSlope(50);
117 response0->SetChargeSpread(0.18, 0.18);
118 response0->SetMaxAdc(4096);
119 response0->SetZeroSuppression(6);
120 //--------------------------------------------------------
121 // Configuration for Chamber TC1/2 (Station 1) ----------
122 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
123 Float_t rseg1[4]={17.5, 55.2, 71.3, 95.5};
124 Int_t nseg1[4]={4, 4, 2, 1};
128 SetNsec(chamber-1,2);
130 AliMUONSegmentationV01 *seg11=new AliMUONSegmentationV01;
132 seg11->SetSegRadii(rseg1);
133 seg11->SetPadSize(3, 0.5);
134 seg11->SetDAnod(3.0/3./4);
135 seg11->SetPadDivision(nseg1);
137 SetSegmentationModel(chamber-1, 1, seg11);
139 AliMUONSegmentationV02 *seg12=new AliMUONSegmentationV02;
140 seg12->SetSegRadii(rseg1);
141 seg12->SetPadSize(0.75, 2.0);
142 seg12->SetDAnod(3.0/3./4);
143 seg12->SetPadDivision(nseg1);
145 SetSegmentationModel(chamber-1, 2, seg12);
147 SetResponseModel(chamber-1, response0);
152 SetNsec(chamber-1,2);
154 AliMUONSegmentationV01 *seg21=new AliMUONSegmentationV01;
155 seg21->SetSegRadii(rseg1);
156 seg21->SetPadSize(3, 0.5);
157 seg21->SetDAnod(3.0/3./4);
158 seg21->SetPadDivision(nseg1);
159 SetSegmentationModel(chamber-1, 1, seg21);
161 AliMUONSegmentationV02 *seg22=new AliMUONSegmentationV02;
162 seg22->SetSegRadii(rseg1);
163 seg22->SetPadSize(0.75, 2.);
164 seg22->SetDAnod(3.0/3./4);
165 seg22->SetPadDivision(nseg1);
166 SetSegmentationModel(chamber-1, 2, seg22);
168 SetResponseModel(chamber-1, response0);
170 //--------------------------------------------------------
171 // Configuration for Chamber TC3/4 -----------------------
172 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
173 Float_t rseg2[4]={23.5, 47.1, 87.7, 122.5};
174 Int_t nseg2[4]={4, 4, 2, 1};
178 SetNsec(chamber-1,2);
180 AliMUONSegmentationV01 *seg31=new AliMUONSegmentationV01;
181 seg31->SetSegRadii(rseg2);
182 seg31->SetPadSize(6, 0.5);
183 seg31->SetDAnod(3.0/3./4);
184 seg31->SetPadDivision(nseg2);
185 SetSegmentationModel(chamber-1, 1, seg31);
187 AliMUONSegmentationV02 *seg32=new AliMUONSegmentationV02;
188 seg32->SetSegRadii(rseg2);
189 seg32->SetPadSize(0.75, 4.);
190 seg32->SetPadDivision(nseg2);
191 seg32->SetDAnod(3.0/3./4);
193 SetSegmentationModel(chamber-1, 2, seg32);
195 SetResponseModel(chamber-1, response0);
200 SetNsec(chamber-1,2);
202 AliMUONSegmentationV01 *seg41=new AliMUONSegmentationV01;
203 seg41->SetSegRadii(rseg2);
204 seg41->SetPadSize(6, 0.5);
205 seg41->SetDAnod(3.0/3./4);
206 seg41->SetPadDivision(nseg2);
207 SetSegmentationModel(chamber-1, 1, seg41);
209 AliMUONSegmentationV02 *seg42=new AliMUONSegmentationV02;
210 seg42->SetSegRadii(rseg2);
211 seg42->SetPadSize(0.75, 4.);
212 seg42->SetPadDivision(nseg2);
213 seg42->SetDAnod(3.0/3./4);
215 SetSegmentationModel(chamber-1, 2, seg42);
217 SetResponseModel(chamber-1, response0);
220 //--------------------------------------------------------
221 // Configuration for Chamber TC5/6 -----------------------
222 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
225 SetNsec(chamber-1,2);
227 AliMUONSegmentationV01 *seg51=new AliMUONSegmentationV01;
228 seg51->SetSegRadii(rseg2);
229 seg51->SetPadSize(6, 0.5);
230 seg51->SetDAnod(3.0/3./4);
231 seg51->SetPadDivision(nseg2);
232 SetSegmentationModel(chamber-1, 1, seg51);
234 AliMUONSegmentationV02 *seg52=new AliMUONSegmentationV02;
235 seg52->SetSegRadii(rseg2);
236 seg52->SetPadSize(0.75, 4.);
237 seg52->SetPadDivision(nseg2);
238 seg52->SetDAnod(3.0/3./4);
240 SetSegmentationModel(chamber-1, 2, seg52);
241 SetResponseModel(chamber-1, response0);
246 SetNsec(chamber-1,2);
248 AliMUONSegmentationV01 *seg61=new AliMUONSegmentationV01;
249 seg61->SetSegRadii(rseg2);
250 seg61->SetPadSize(6, 0.5);
251 seg61->SetDAnod(3.0/3./4);
252 seg61->SetPadDivision(nseg2);
253 SetSegmentationModel(chamber-1, 1, seg61);
255 AliMUONSegmentationV02 *seg62=new AliMUONSegmentationV02;
256 seg62->SetSegRadii(rseg2);
257 seg62->SetPadSize(0.75, 4.);
258 seg62->SetPadDivision(nseg2);
259 seg62->SetDAnod(3.0/3./4);
261 SetSegmentationModel(chamber-1, 2, seg62);
263 SetResponseModel(chamber-1, response0);
269 SetPadSize(station, 1, 0.975, 0.55);
271 //--------------------------------------------------------
272 // Configuration for Chamber TC7/8 (Station 4) ----------
273 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
275 Int_t nseg4[4]={4, 4, 2, 1};
279 SetNsec(chamber-1,2);
281 AliMUONSegmentationV04 *seg71=new AliMUONSegmentationV04;
282 seg71->SetPadSize(10.,0.5);
283 seg71->SetDAnod(0.25);
284 seg71->SetPadDivision(nseg4);
285 SetSegmentationModel(chamber-1, 1, seg71);
286 AliMUONSegmentationV05 *seg72=new AliMUONSegmentationV05;
287 seg72->SetPadSize(1,10);
288 seg72->SetDAnod(0.25);
289 seg72->SetPadDivision(nseg4);
290 SetSegmentationModel(chamber-1, 2, seg72);
292 SetResponseModel(chamber-1, response0);
296 SetNsec(chamber-1,2);
297 AliMUONSegmentationV04 *seg81=new AliMUONSegmentationV04;
298 seg81->SetPadSize(10., 0.5);
299 seg81->SetPadDivision(nseg4);
300 seg81->SetDAnod(0.25);
301 SetSegmentationModel(chamber-1, 1, seg81);
303 AliMUONSegmentationV05 *seg82=new AliMUONSegmentationV05;
304 seg82->SetPadSize(1, 10);
305 seg82->SetPadDivision(nseg4);
306 seg82->SetDAnod(0.25);
307 SetSegmentationModel(chamber-1, 2, seg82);
309 SetResponseModel(chamber-1, response0);
310 //--------------------------------------------------------
311 // Configuration for Chamber TC9/10 (Station 5) ---------
312 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
315 SetNsec(chamber-1,2);
317 AliMUONSegmentationV04 *seg91=new AliMUONSegmentationV04;
318 seg91->SetPadSize(10.,0.5);
319 seg91->SetDAnod(0.25);
320 seg91->SetPadDivision(nseg4);
321 SetSegmentationModel(chamber-1, 1, seg91);
323 AliMUONSegmentationV05 *seg92=new AliMUONSegmentationV05;
324 seg92->SetPadSize(1,10);
325 seg92->SetDAnod(0.25);
326 seg92->SetPadDivision(nseg4);
328 SetSegmentationModel(chamber-1, 2, seg92);
330 SetResponseModel(chamber-1, response0);
334 SetNsec(chamber-1,2);
335 AliMUONSegmentationV04 *seg101=new AliMUONSegmentationV04;
336 seg101->SetPadSize(10., 0.5);
337 seg101->SetPadDivision(nseg4);
338 seg101->SetDAnod(0.25);
339 SetSegmentationModel(chamber-1, 1, seg101);
341 AliMUONSegmentationV05 *seg102=new AliMUONSegmentationV05;
342 seg102->SetPadSize(1,10);
343 seg102->SetPadDivision(nseg4);
344 seg102->SetDAnod(0.25);
345 SetSegmentationModel(chamber-1, 2, seg102);
347 SetResponseModel(chamber-1, response0);
349 //--------------------------------------------------------
350 // Configuration for Trigger staions ---------------------
351 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
352 AliMUONResponseTrigger* responseTrigger0 = new AliMUONResponseTrigger;
355 SetNsec(chamber-1,2);
356 AliMUONSegmentationTriggerX *seg111=new AliMUONSegmentationTriggerX;
357 SetSegmentationModel(chamber-1, 1, seg111);
358 AliMUONSegmentationTriggerY *seg112=new AliMUONSegmentationTriggerY;
359 SetSegmentationModel(chamber-1, 2, seg112);
361 SetResponseModel(chamber-1, responseTrigger0);
364 SetNsec(chamber-1,2);
365 AliMUONSegmentationTriggerX *seg121=new AliMUONSegmentationTriggerX;
366 SetSegmentationModel(chamber-1, 1, seg121);
367 AliMUONSegmentationTriggerY *seg122=new AliMUONSegmentationTriggerY;
368 SetSegmentationModel(chamber-1, 2, seg122);
370 SetResponseModel(chamber-1, responseTrigger0);
373 SetNsec(chamber-1,2);
374 AliMUONSegmentationTriggerX *seg131=new AliMUONSegmentationTriggerX;
375 SetSegmentationModel(chamber-1, 1, seg131);
376 AliMUONSegmentationTriggerY *seg132=new AliMUONSegmentationTriggerY;
377 SetSegmentationModel(chamber-1, 2, seg132);
378 SetResponseModel(chamber-1, responseTrigger0);
381 SetNsec(chamber-1,2);
382 AliMUONSegmentationTriggerX *seg141=new AliMUONSegmentationTriggerX;
383 SetSegmentationModel(chamber-1, 1, seg141);
384 AliMUONSegmentationTriggerY *seg142=new AliMUONSegmentationTriggerY;
385 SetSegmentationModel(chamber-1, 2, seg142);
387 SetResponseModel(chamber-1, responseTrigger0);
390 void AliMUONv0::CreateGeometry()
392 // Creates coarse geometry for hit density simulations
393 Int_t *idtmed = fIdtmed->GetArray()-1099;
395 Float_t zpos, dAlu, tpar[3];
396 Int_t idAir=idtmed[1100];
397 Int_t idAlu=idtmed[1103];
399 AliMUONChamber *iChamber;
400 // Loop over all chambers (tracking and trigger)
401 for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) {
405 iChamber=(AliMUONChamber*) (*fChambers)[ch];
408 dAlu=iChamber->DAlu();
409 if (ch < AliMUONConstants::NTrackingCh()) {
411 sprintf(alu,"CA0%1d",ch);
412 sprintf(gas,"CG0%1d",ch);
415 sprintf(alu,"CA%2d",ch);
416 sprintf(gas,"CG%2d",ch);
419 printf("\n %d, %s, %s \n ", ch, alu, gas);
421 tpar[0] = iChamber->RInner();
422 tpar[1] = iChamber->ROuter();
423 tpar[2] = (dAlu+0.2)/2.;
424 if (ch !=4 && ch !=5) {
425 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
427 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
429 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
431 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
433 gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY");
434 gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY");
435 iChamber->SetGid(gMC->VolId(gas));
439 //___________________________________________
440 void AliMUONv0::CreateMaterials()
442 // Creates materials for coarse geometry
443 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
444 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
446 Float_t epsil = .001; // Tracking precision,
447 Float_t stemax = -1.; // Maximum displacement for multiple scat
448 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
449 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
451 Int_t isxfld = gAlice->Field()->Integ();
452 Float_t sxmgmx = gAlice->Field()->Max();
456 AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
457 AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu,
458 fMaxDestepAlu, epsil, stmin);
462 void AliMUONv0::Init()
465 // Initialize Tracking Chambers
468 printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n");
469 for (Int_t i=0; i<AliMUONConstants::NCh(); i++) {
470 ( (AliMUONChamber*) (*fChambers)[i])->Init();
474 void AliMUONv0::StepManager()
477 // Step manager for hit density simulations
487 static Float_t hits[15];
489 TClonesArray &lhits = *fHits;
491 // Only gas gap inside chamber
492 // Tag chambers and record hits when track enters
494 id=gMC->CurrentVolID(copy);
496 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
497 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
502 if (idvol == -1) return;
504 // Get current particle id (ipart), track position (pos) and momentum (mom)
505 gMC->TrackPosition(pos);
506 gMC->TrackMomentum(mom);
508 ipart = gMC->TrackPid();
510 // record hits when track enters ...
511 // if( !(gMC->TrackCharge()) ) return;
512 if( gMC->IsTrackEntering()) {
513 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
514 Double_t rt = TMath::Sqrt(tc);
515 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
516 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
517 hits[0] = Float_t(ipart); // Geant3 particle type
518 hits[1] = pos[0]; // X-position for hit
519 hits[2] = pos[1]; // Y-position for hit
520 hits[3] = pos[2]; // Z-position for hit
521 hits[4] = theta; // theta angle of incidence
522 hits[5] = phi; // phi angle of incidence
523 hits[8] = -1; // first padhit
524 hits[9] = -1; // last pad hit
527 hits[10] = mom[3]; // hit Energy
528 hits[11] = mom[0]; // Px
529 hits[12] = mom[1]; // Py
530 hits[13] = mom[2]; // Pz
531 hits[14] = gMC->TrackTime();
535 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);