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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/*
17$Log$
f665c1ea 18Revision 1.9 2000/06/15 07:58:49 morsch
19Code from MUON-dev joined
20
a9e2aefa 21Revision 1.8.4.9 2000/06/12 19:20:49 morsch
22Constructor sets default geometry, segmentation and response parameters.
23
24Revision 1.8.4.8 2000/06/09 21:55:28 morsch
25Most coding rule violations corrected.
26
27Revision 1.8.4.7 2000/05/02 13:15:18 morsch
28Coding rule violations RS3, RN13 corected
29
30Revision 1.8.4.6 2000/05/02 10:24:26 morsch
31Public access to fdGas and fdAlu of AliMUONChamber replaced by getters.
32
33Revision 1.8.4.5 2000/04/26 19:58:47 morsch
34Obsolete reference to trig_ removed.
35
36Revision 1.8.4.4 2000/04/19 19:42:47 morsch
37change NCH to kNCH
38
39Revision 1.8.4.3 2000/02/17 08:17:43 morsch
40Gammas and neutrons are also scored in the stepmanager
4c039060 41*/
42
fe4da5cc 43/////////////////////////////////////////////////////////
44// Manager and hits classes for set:MUON version 0 //
45/////////////////////////////////////////////////////////
46
47#include <TTUBE.h>
48#include <TNode.h>
49#include <TRandom.h>
a897a37a 50#include <TLorentzVector.h>
a9e2aefa 51#include <iostream.h>
fe4da5cc 52
53#include "AliMUONv0.h"
a9e2aefa 54#include "AliMUONChamber.h"
fe4da5cc 55#include "AliRun.h"
56#include "AliMC.h"
a9e2aefa 57#include "AliMUONHit.h"
58#include "AliMUONPadHit.h"
fe4da5cc 59#include "AliCallf77.h"
60#include "AliConst.h"
a9e2aefa 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"
f665c1ea 71#include "AliMUONConstants.h"
fe4da5cc 72
73ClassImp(AliMUONv0)
74
75//___________________________________________
76AliMUONv0::AliMUONv0() : AliMUON()
77{
a9e2aefa 78// Constructor
fe4da5cc 79 fChambers = 0;
80}
81
82//___________________________________________
83AliMUONv0::AliMUONv0(const char *name, const char *title)
84 : AliMUON(name,title)
85{
a9e2aefa 86// Constructor
87 fChambers = 0;
fe4da5cc 88
a9e2aefa 89 SetIshunt(0);
90 SetMaxStepGas(0.1);
91 SetMaxStepAlu(0.1);
92//
93// Version 0
94//
95// First define the number of planes that are segmented (1 or 2) by a call
96// to SetNsec.
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.
101//
102//
103 Int_t chamber;
104 Int_t station;
105// Default response
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};
124//
125 chamber=1;
126//^^^^^^^^^
127 SetNsec(chamber-1,2);
128//
129 AliMUONSegmentationV01 *seg11=new AliMUONSegmentationV01;
fe4da5cc 130
a9e2aefa 131 seg11->SetSegRadii(rseg1);
132 seg11->SetPadSize(3, 0.5);
133 seg11->SetDAnod(3.0/3./4);
134 seg11->SetPadDivision(nseg1);
135
136 SetSegmentationModel(chamber-1, 1, seg11);
fe4da5cc 137//
a9e2aefa 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);
143
144 SetSegmentationModel(chamber-1, 2, seg12);
145
146 SetResponseModel(chamber-1, response0);
147
148 chamber=2;
149//^^^^^^^^^
150//
151 SetNsec(chamber-1,2);
152//
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);
159//
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);
166
167 SetResponseModel(chamber-1, response0);
168//
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};
174//
175 chamber=3;
176//^^^^^^^^^
177 SetNsec(chamber-1,2);
178//
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);
185//
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);
191
192 SetSegmentationModel(chamber-1, 2, seg32);
193
194 SetResponseModel(chamber-1, response0);
195
196 chamber=4;
197//^^^^^^^^^
198//
199 SetNsec(chamber-1,2);
200//
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);
207//
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);
213
214 SetSegmentationModel(chamber-1, 2, seg42);
215
216 SetResponseModel(chamber-1, response0);
217
218
219//--------------------------------------------------------
220// Configuration for Chamber TC5/6 -----------------------
221//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
222 chamber=5;
223//^^^^^^^^^
224 SetNsec(chamber-1,2);
225//
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);
232//
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);
238
239 SetSegmentationModel(chamber-1, 2, seg52);
240 SetResponseModel(chamber-1, response0);
241
242 chamber=6;
243//^^^^^^^^^
244//
245 SetNsec(chamber-1,2);
246//
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);
253//
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);
259
260 SetSegmentationModel(chamber-1, 2, seg62);
261
262 SetResponseModel(chamber-1, response0);
cfce8870 263
a897a37a 264
a897a37a 265//
a9e2aefa 266// Station 3
267 station=3;
268 SetPadSize(station, 1, 0.975, 0.55);
a897a37a 269
a9e2aefa 270//--------------------------------------------------------
271// Configuration for Chamber TC7/8 (Station 4) ----------
272//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
a897a37a 273
a9e2aefa 274 Int_t nseg4[4]={4, 4, 2, 1};
a897a37a 275
a9e2aefa 276 chamber=7;
277//^^^^^^^^^
278 SetNsec(chamber-1,2);
a897a37a 279//
a9e2aefa 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);
290
291 SetResponseModel(chamber-1, response0);
292
293 chamber=8;
294//^^^^^^^^^
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);
301
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);
307
308 SetResponseModel(chamber-1, response0);
309//--------------------------------------------------------
310// Configuration for Chamber TC9/10 (Station 5) ---------
311//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
312 chamber=9;
313//^^^^^^^^^
314 SetNsec(chamber-1,2);
315//
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);
321
322 AliMUONSegmentationV05 *seg92=new AliMUONSegmentationV05;
323 seg92->SetPadSize(1,10);
324 seg92->SetDAnod(0.25);
325 seg92->SetPadDivision(nseg4);
326
327 SetSegmentationModel(chamber-1, 2, seg92);
328
329 SetResponseModel(chamber-1, response0);
330
331 chamber=10;
332//^^^^^^^^^
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);
339
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);
345
346 SetResponseModel(chamber-1, response0);
a897a37a 347
a9e2aefa 348//--------------------------------------------------------
349// Configuration for Trigger staions ---------------------
350//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
351 AliMUONResponseTrigger* responseTrigger0 = new AliMUONResponseTrigger;
352
353 chamber=11;
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);
359
360 SetResponseModel(chamber-1, responseTrigger0);
361
362 chamber=12;
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);
368
369 SetResponseModel(chamber-1, responseTrigger0);
370
371 chamber=13;
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);
378
379 chamber=14;
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);
385
386 SetResponseModel(chamber-1, responseTrigger0);
a897a37a 387}
388
a9e2aefa 389void AliMUONv0::CreateGeometry()
390{
391// Creates coarse geometry for hit density simulations
392 Int_t *idtmed = fIdtmed->GetArray()-1099;
fe4da5cc 393//
a9e2aefa 394 Float_t zpos, dAlu, tpar[3];
395 Int_t idAir=idtmed[1100];
396 Int_t idAlu=idtmed[1103];
397
398 AliMUONChamber *iChamber;
399 // Loop over all chambers (tracking and trigger)
f665c1ea 400 for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) {
a9e2aefa 401 char alu[8];
402 char gas[8];
403
404 iChamber=(AliMUONChamber*) (*fChambers)[ch];
405 // Z of the chamber
406 zpos=iChamber->Z();
407 dAlu=iChamber->DAlu();
f665c1ea 408 if (ch < AliMUONConstants::NTrackingCh()) {
a9e2aefa 409 // tracking chambers
410 sprintf(alu,"CA0%1d",ch);
411 sprintf(gas,"CG0%1d",ch);
412 } else {
413 // trigger chambers
414 sprintf(alu,"CA%2d",ch);
415 sprintf(gas,"CG%2d",ch);
416 }
417//
418 printf("\n %d, %s, %s \n ", ch, alu, gas);
419
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);
425 tpar[2] = 0.1;
426 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
427 } else {
428 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
429 tpar[2] = 0.1;
430 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
431 }
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));
a897a37a 435 }
fe4da5cc 436}
437
fe4da5cc 438//___________________________________________
439void AliMUONv0::CreateMaterials()
440{
a9e2aefa 441// Creates materials for coarse geometry
fe4da5cc 442 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
a9e2aefa 443 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
fe4da5cc 444
a9e2aefa 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
449 Float_t stmin = -.8;
450 Int_t isxfld = gAlice->Field()->Integ();
451 Float_t sxmgmx = gAlice->Field()->Max();
fe4da5cc 452
fe4da5cc 453 //
a9e2aefa 454 // Air
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,
a897a37a 457 fMaxDestepAlu, epsil, stmin);
458
fe4da5cc 459}
460
fe4da5cc 461void AliMUONv0::Init()
462{
fe4da5cc 463 //
464 // Initialize Tracking Chambers
465 //
f665c1ea 466
a9e2aefa 467 printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n");
f665c1ea 468 for (Int_t i=0; i<AliMUONConstants::NCh(); i++) {
a9e2aefa 469 ( (AliMUONChamber*) (*fChambers)[i])->Init();
fe4da5cc 470 }
fe4da5cc 471}
472
fe4da5cc 473void AliMUONv0::StepManager()
474{
a9e2aefa 475//
476// Step manager for hit density simulations
fe4da5cc 477 Int_t copy, id;
478 static Int_t idvol;
479 static Int_t vol[2];
480 Int_t ipart;
a897a37a 481 TLorentzVector pos;
482 TLorentzVector mom;
483 Float_t theta,phi;
fe4da5cc 484
a897a37a 485 // modifs perso
a9e2aefa 486 static Float_t hits[15];
a897a37a 487
fe4da5cc 488 TClonesArray &lhits = *fHits;
fe4da5cc 489 //
490 // Only gas gap inside chamber
491 // Tag chambers and record hits when track enters
492 idvol=-1;
0a6d8768 493 id=gMC->CurrentVolID(copy);
fe4da5cc 494
f665c1ea 495 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
a9e2aefa 496 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
fe4da5cc 497 vol[0]=i;
498 idvol=i-1;
499 }
500 }
501 if (idvol == -1) return;
502 //
503 // Get current particle id (ipart), track position (pos) and momentum (mom)
cfce8870 504 gMC->TrackPosition(pos);
505 gMC->TrackMomentum(mom);
fe4da5cc 506
cfce8870 507 ipart = gMC->TrackPid();
fe4da5cc 508 //
509 // record hits when track enters ...
a9e2aefa 510// if( !(gMC->TrackCharge()) ) return;
0a6d8768 511 if( gMC->IsTrackEntering()) {
a897a37a 512 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
513 Double_t rt = TMath::Sqrt(tc);
a897a37a 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;
a9e2aefa 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
524
525 // modifs personel
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();
fe4da5cc 531
a9e2aefa 532 // fin modifs perso
fe4da5cc 533 new(lhits[fNhits++])
a9e2aefa 534 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
535
fe4da5cc 536 }
537}
a9e2aefa 538
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