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 1.9 2000/06/15 07:58:49 morsch
19 Code from MUON-dev joined
21 Revision 1.8.4.9 2000/06/12 19:20:49 morsch
22 Constructor sets default geometry, segmentation and response parameters.
24 Revision 1.8.4.8 2000/06/09 21:55:28 morsch
25 Most coding rule violations corrected.
27 Revision 1.8.4.7 2000/05/02 13:15:18 morsch
28 Coding rule violations RS3, RN13 corected
30 Revision 1.8.4.6 2000/05/02 10:24:26 morsch
31 Public access to fdGas and fdAlu of AliMUONChamber replaced by getters.
33 Revision 1.8.4.5 2000/04/26 19:58:47 morsch
34 Obsolete reference to trig_ removed.
36 Revision 1.8.4.4 2000/04/19 19:42:47 morsch
39 Revision 1.8.4.3 2000/02/17 08:17:43 morsch
40 Gammas and neutrons are also scored in the stepmanager
43 /////////////////////////////////////////////////////////
44 // Manager and hits classes for set:MUON version 0 //
45 /////////////////////////////////////////////////////////
50 #include <TLorentzVector.h>
53 #include "AliMUONv0.h"
54 #include "AliMUONChamber.h"
57 #include "AliMUONHit.h"
58 #include "AliMUONPadHit.h"
59 #include "AliCallf77.h"
61 #include "AliMUONResponseV0.h"
62 #include "AliMUONResponseTrigger.h"
63 #include "AliMUONSegmentationV0.h"
64 #include "AliMUONSegmentationV01.h"
65 #include "AliMUONSegmentationV02.h"
66 #include "AliMUONSegmentationV04.h"
67 #include "AliMUONSegmentationV05.h"
68 #include "AliMUONSegmentationTrigger.h"
69 #include "AliMUONSegmentationTriggerX.h"
70 #include "AliMUONSegmentationTriggerY.h"
71 #include "AliMUONConstants.h"
75 //___________________________________________
76 AliMUONv0::AliMUONv0() : AliMUON()
82 //___________________________________________
83 AliMUONv0::AliMUONv0(const char *name, const char *title)
95 // First define the number of planes that are segmented (1 or 2) by a call
97 // Then chose for each chamber (chamber plane) the segmentation
98 // and response model.
99 // They should be equal for the two chambers of each station. In a future
100 // version this will be enforced.
106 AliMUONResponseV0* response0 = new AliMUONResponseV0;
107 response0->SetSqrtKx3(0.7131);
108 response0->SetKx2(1.0107);
109 response0->SetKx4(0.4036);
110 response0->SetSqrtKy3(0.7642);
111 response0->SetKy2(0.9706);
112 response0->SetKy4(0.3831);
113 response0->SetPitch(0.25);
114 response0->SetSigmaIntegration(10.);
115 response0->SetChargeSlope(50);
116 response0->SetChargeSpread(0.18, 0.18);
117 response0->SetMaxAdc(4096);
118 response0->SetZeroSuppression(6);
119 //--------------------------------------------------------
120 // Configuration for Chamber TC1/2 (Station 1) ----------
121 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
122 Float_t rseg1[4]={17.5, 55.2, 71.3, 95.5};
123 Int_t nseg1[4]={4, 4, 2, 1};
127 SetNsec(chamber-1,2);
129 AliMUONSegmentationV01 *seg11=new AliMUONSegmentationV01;
131 seg11->SetSegRadii(rseg1);
132 seg11->SetPadSize(3, 0.5);
133 seg11->SetDAnod(3.0/3./4);
134 seg11->SetPadDivision(nseg1);
136 SetSegmentationModel(chamber-1, 1, seg11);
138 AliMUONSegmentationV02 *seg12=new AliMUONSegmentationV02;
139 seg12->SetSegRadii(rseg1);
140 seg12->SetPadSize(0.75, 2.0);
141 seg12->SetDAnod(3.0/3./4);
142 seg12->SetPadDivision(nseg1);
144 SetSegmentationModel(chamber-1, 2, seg12);
146 SetResponseModel(chamber-1, response0);
151 SetNsec(chamber-1,2);
153 AliMUONSegmentationV01 *seg21=new AliMUONSegmentationV01;
154 seg21->SetSegRadii(rseg1);
155 seg21->SetPadSize(3, 0.5);
156 seg21->SetDAnod(3.0/3./4);
157 seg21->SetPadDivision(nseg1);
158 SetSegmentationModel(chamber-1, 1, seg21);
160 AliMUONSegmentationV02 *seg22=new AliMUONSegmentationV02;
161 seg22->SetSegRadii(rseg1);
162 seg22->SetPadSize(0.75, 2.);
163 seg22->SetDAnod(3.0/3./4);
164 seg22->SetPadDivision(nseg1);
165 SetSegmentationModel(chamber-1, 2, seg22);
167 SetResponseModel(chamber-1, response0);
169 //--------------------------------------------------------
170 // Configuration for Chamber TC3/4 -----------------------
171 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
172 Float_t rseg2[4]={23.5, 47.1, 87.7, 122.5};
173 Int_t nseg2[4]={4, 4, 2, 1};
177 SetNsec(chamber-1,2);
179 AliMUONSegmentationV01 *seg31=new AliMUONSegmentationV01;
180 seg31->SetSegRadii(rseg2);
181 seg31->SetPadSize(6, 0.5);
182 seg31->SetDAnod(3.0/3./4);
183 seg31->SetPadDivision(nseg2);
184 SetSegmentationModel(chamber-1, 1, seg31);
186 AliMUONSegmentationV02 *seg32=new AliMUONSegmentationV02;
187 seg32->SetSegRadii(rseg2);
188 seg32->SetPadSize(0.75, 4.);
189 seg32->SetPadDivision(nseg2);
190 seg32->SetDAnod(3.0/3./4);
192 SetSegmentationModel(chamber-1, 2, seg32);
194 SetResponseModel(chamber-1, response0);
199 SetNsec(chamber-1,2);
201 AliMUONSegmentationV01 *seg41=new AliMUONSegmentationV01;
202 seg41->SetSegRadii(rseg2);
203 seg41->SetPadSize(6, 0.5);
204 seg41->SetDAnod(3.0/3./4);
205 seg41->SetPadDivision(nseg2);
206 SetSegmentationModel(chamber-1, 1, seg41);
208 AliMUONSegmentationV02 *seg42=new AliMUONSegmentationV02;
209 seg42->SetSegRadii(rseg2);
210 seg42->SetPadSize(0.75, 4.);
211 seg42->SetPadDivision(nseg2);
212 seg42->SetDAnod(3.0/3./4);
214 SetSegmentationModel(chamber-1, 2, seg42);
216 SetResponseModel(chamber-1, response0);
219 //--------------------------------------------------------
220 // Configuration for Chamber TC5/6 -----------------------
221 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
224 SetNsec(chamber-1,2);
226 AliMUONSegmentationV01 *seg51=new AliMUONSegmentationV01;
227 seg51->SetSegRadii(rseg2);
228 seg51->SetPadSize(6, 0.5);
229 seg51->SetDAnod(3.0/3./4);
230 seg51->SetPadDivision(nseg2);
231 SetSegmentationModel(chamber-1, 1, seg51);
233 AliMUONSegmentationV02 *seg52=new AliMUONSegmentationV02;
234 seg52->SetSegRadii(rseg2);
235 seg52->SetPadSize(0.75, 4.);
236 seg52->SetPadDivision(nseg2);
237 seg52->SetDAnod(3.0/3./4);
239 SetSegmentationModel(chamber-1, 2, seg52);
240 SetResponseModel(chamber-1, response0);
245 SetNsec(chamber-1,2);
247 AliMUONSegmentationV01 *seg61=new AliMUONSegmentationV01;
248 seg61->SetSegRadii(rseg2);
249 seg61->SetPadSize(6, 0.5);
250 seg61->SetDAnod(3.0/3./4);
251 seg61->SetPadDivision(nseg2);
252 SetSegmentationModel(chamber-1, 1, seg61);
254 AliMUONSegmentationV02 *seg62=new AliMUONSegmentationV02;
255 seg62->SetSegRadii(rseg2);
256 seg62->SetPadSize(0.75, 4.);
257 seg62->SetPadDivision(nseg2);
258 seg62->SetDAnod(3.0/3./4);
260 SetSegmentationModel(chamber-1, 2, seg62);
262 SetResponseModel(chamber-1, response0);
268 SetPadSize(station, 1, 0.975, 0.55);
270 //--------------------------------------------------------
271 // Configuration for Chamber TC7/8 (Station 4) ----------
272 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
274 Int_t nseg4[4]={4, 4, 2, 1};
278 SetNsec(chamber-1,2);
280 AliMUONSegmentationV04 *seg71=new AliMUONSegmentationV04;
281 seg71->SetPadSize(10.,0.5);
282 seg71->SetDAnod(0.25);
283 seg71->SetPadDivision(nseg4);
284 SetSegmentationModel(chamber-1, 1, seg71);
285 AliMUONSegmentationV05 *seg72=new AliMUONSegmentationV05;
286 seg72->SetPadSize(1,10);
287 seg72->SetDAnod(0.25);
288 seg72->SetPadDivision(nseg4);
289 SetSegmentationModel(chamber-1, 2, seg72);
291 SetResponseModel(chamber-1, response0);
295 SetNsec(chamber-1,2);
296 AliMUONSegmentationV04 *seg81=new AliMUONSegmentationV04;
297 seg81->SetPadSize(10., 0.5);
298 seg81->SetPadDivision(nseg4);
299 seg81->SetDAnod(0.25);
300 SetSegmentationModel(chamber-1, 1, seg81);
302 AliMUONSegmentationV05 *seg82=new AliMUONSegmentationV05;
303 seg82->SetPadSize(1, 10);
304 seg82->SetPadDivision(nseg4);
305 seg82->SetDAnod(0.25);
306 SetSegmentationModel(chamber-1, 2, seg82);
308 SetResponseModel(chamber-1, response0);
309 //--------------------------------------------------------
310 // Configuration for Chamber TC9/10 (Station 5) ---------
311 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
314 SetNsec(chamber-1,2);
316 AliMUONSegmentationV04 *seg91=new AliMUONSegmentationV04;
317 seg91->SetPadSize(10.,0.5);
318 seg91->SetDAnod(0.25);
319 seg91->SetPadDivision(nseg4);
320 SetSegmentationModel(chamber-1, 1, seg91);
322 AliMUONSegmentationV05 *seg92=new AliMUONSegmentationV05;
323 seg92->SetPadSize(1,10);
324 seg92->SetDAnod(0.25);
325 seg92->SetPadDivision(nseg4);
327 SetSegmentationModel(chamber-1, 2, seg92);
329 SetResponseModel(chamber-1, response0);
333 SetNsec(chamber-1,2);
334 AliMUONSegmentationV04 *seg101=new AliMUONSegmentationV04;
335 seg101->SetPadSize(10., 0.5);
336 seg101->SetPadDivision(nseg4);
337 seg101->SetDAnod(0.25);
338 SetSegmentationModel(chamber-1, 1, seg101);
340 AliMUONSegmentationV05 *seg102=new AliMUONSegmentationV05;
341 seg102->SetPadSize(1,10);
342 seg102->SetPadDivision(nseg4);
343 seg102->SetDAnod(0.25);
344 SetSegmentationModel(chamber-1, 2, seg102);
346 SetResponseModel(chamber-1, response0);
348 //--------------------------------------------------------
349 // Configuration for Trigger staions ---------------------
350 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
351 AliMUONResponseTrigger* responseTrigger0 = new AliMUONResponseTrigger;
354 SetNsec(chamber-1,2);
355 AliMUONSegmentationTriggerX *seg111=new AliMUONSegmentationTriggerX;
356 SetSegmentationModel(chamber-1, 1, seg111);
357 AliMUONSegmentationTriggerY *seg112=new AliMUONSegmentationTriggerY;
358 SetSegmentationModel(chamber-1, 2, seg112);
360 SetResponseModel(chamber-1, responseTrigger0);
363 SetNsec(chamber-1,2);
364 AliMUONSegmentationTriggerX *seg121=new AliMUONSegmentationTriggerX;
365 SetSegmentationModel(chamber-1, 1, seg121);
366 AliMUONSegmentationTriggerY *seg122=new AliMUONSegmentationTriggerY;
367 SetSegmentationModel(chamber-1, 2, seg122);
369 SetResponseModel(chamber-1, responseTrigger0);
372 SetNsec(chamber-1,2);
373 AliMUONSegmentationTriggerX *seg131=new AliMUONSegmentationTriggerX;
374 SetSegmentationModel(chamber-1, 1, seg131);
375 AliMUONSegmentationTriggerY *seg132=new AliMUONSegmentationTriggerY;
376 SetSegmentationModel(chamber-1, 2, seg132);
377 SetResponseModel(chamber-1, responseTrigger0);
380 SetNsec(chamber-1,2);
381 AliMUONSegmentationTriggerX *seg141=new AliMUONSegmentationTriggerX;
382 SetSegmentationModel(chamber-1, 1, seg141);
383 AliMUONSegmentationTriggerY *seg142=new AliMUONSegmentationTriggerY;
384 SetSegmentationModel(chamber-1, 2, seg142);
386 SetResponseModel(chamber-1, responseTrigger0);
389 void AliMUONv0::CreateGeometry()
391 // Creates coarse geometry for hit density simulations
392 Int_t *idtmed = fIdtmed->GetArray()-1099;
394 Float_t zpos, dAlu, tpar[3];
395 Int_t idAir=idtmed[1100];
396 Int_t idAlu=idtmed[1103];
398 AliMUONChamber *iChamber;
399 // Loop over all chambers (tracking and trigger)
400 for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) {
404 iChamber=(AliMUONChamber*) (*fChambers)[ch];
407 dAlu=iChamber->DAlu();
408 if (ch < AliMUONConstants::NTrackingCh()) {
410 sprintf(alu,"CA0%1d",ch);
411 sprintf(gas,"CG0%1d",ch);
414 sprintf(alu,"CA%2d",ch);
415 sprintf(gas,"CG%2d",ch);
418 printf("\n %d, %s, %s \n ", ch, alu, gas);
420 tpar[0] = iChamber->RInner();
421 tpar[1] = iChamber->ROuter();
422 tpar[2] = (dAlu+0.2)/2.;
423 if (ch !=4 && ch !=5) {
424 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
426 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
428 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
430 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
432 gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY");
433 gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY");
434 iChamber->SetGid(gMC->VolId(gas));
438 //___________________________________________
439 void AliMUONv0::CreateMaterials()
441 // Creates materials for coarse geometry
442 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
443 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
445 Float_t epsil = .001; // Tracking precision,
446 Float_t stemax = -1.; // Maximum displacement for multiple scat
447 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
448 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
450 Int_t isxfld = gAlice->Field()->Integ();
451 Float_t sxmgmx = gAlice->Field()->Max();
455 AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
456 AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu,
457 fMaxDestepAlu, epsil, stmin);
461 void AliMUONv0::Init()
464 // Initialize Tracking Chambers
467 printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n");
468 for (Int_t i=0; i<AliMUONConstants::NCh(); i++) {
469 ( (AliMUONChamber*) (*fChambers)[i])->Init();
473 void AliMUONv0::StepManager()
476 // Step manager for hit density simulations
486 static Float_t hits[15];
488 TClonesArray &lhits = *fHits;
490 // Only gas gap inside chamber
491 // Tag chambers and record hits when track enters
493 id=gMC->CurrentVolID(copy);
495 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
496 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
501 if (idvol == -1) return;
503 // Get current particle id (ipart), track position (pos) and momentum (mom)
504 gMC->TrackPosition(pos);
505 gMC->TrackMomentum(mom);
507 ipart = gMC->TrackPid();
509 // record hits when track enters ...
510 // if( !(gMC->TrackCharge()) ) return;
511 if( gMC->IsTrackEntering()) {
512 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
513 Double_t rt = TMath::Sqrt(tc);
514 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
515 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
516 hits[0] = Float_t(ipart); // Geant3 particle type
517 hits[1] = pos[0]; // X-position for hit
518 hits[2] = pos[1]; // Y-position for hit
519 hits[3] = pos[2]; // Z-position for hit
520 hits[4] = theta; // theta angle of incidence
521 hits[5] = phi; // phi angle of incidence
522 hits[8] = -1; // first padhit
523 hits[9] = -1; // last pad hit
526 hits[10] = mom[3]; // hit Energy
527 hits[11] = mom[0]; // Px
528 hits[12] = mom[1]; // Py
529 hits[13] = mom[2]; // Pz
530 hits[14] = gMC->TrackTime();
534 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);