]> git.uio.no Git - u/mrichter/AliRoot.git/blame - RICH/AliRICH.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
libEGPythia changed to libEGPythia6
[u/mrichter/AliRoot.git] / RICH / AliRICH.cxx
CommitLineData
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/*
2e5f0f7b 17 $Log$
e51a3fa9 18 Revision 1.21 2000/07/21 10:21:07 morsch
19 fNrawch = 0; and fNrechits = 0; in the default constructor.
20
db481a6e 21 Revision 1.20 2000/07/10 15:28:39 fca
22 Correction of the inheritance scheme
23
452a64c6 24 Revision 1.19 2000/06/30 16:29:51 dibari
25 Added kDebugLevel variable to control output size on demand
26
33984590 27 Revision 1.18 2000/06/12 15:15:46 jbarbosa
28 Cleaned up version.
29
237c933d 30 Revision 1.17 2000/06/09 14:58:37 jbarbosa
31 New digitisation per particle type
32
d28b5fc2 33 Revision 1.16 2000/04/19 12:55:43 morsch
34 Newly structured and updated version (JB, AM)
35
4c039060 36*/
37
2e5f0f7b 38
ddae0931 39////////////////////////////////////////////////
40// Manager and hits classes for set:RICH //
41////////////////////////////////////////////////
fe4da5cc 42
ddae0931 43#include <TBRIK.h>
44#include <TTUBE.h>
fe4da5cc 45#include <TNode.h>
46#include <TRandom.h>
ddae0931 47#include <TObject.h>
48#include <TVector.h>
49#include <TObjArray.h>
2e5f0f7b 50#include <TArrayF.h>
237c933d 51#include <TFile.h>
52#include <TParticle.h>
53#include <iostream.h>
fe4da5cc 54
fe4da5cc 55#include "AliRICH.h"
237c933d 56#include "AliRICHSegmentation.h"
57#include "AliRICHHit.h"
58#include "AliRICHCerenkov.h"
59#include "AliRICHPadHit.h"
60#include "AliRICHDigit.h"
61#include "AliRICHTransientDigit.h"
62#include "AliRICHRawCluster.h"
63#include "AliRICHRecHit.h"
64#include "AliRICHHitMapA1.h"
2e5f0f7b 65#include "AliRICHClusterFinder.h"
fe4da5cc 66#include "AliRun.h"
ddae0931 67#include "AliMC.h"
452a64c6 68#include "AliConst.h"
69#include "AliPDG.h"
2e5f0f7b 70#include "AliPoints.h"
ddae0931 71#include "AliCallf77.h"
452a64c6 72#include "TGeant3.h"
237c933d 73
ddae0931 74
75// Static variables for the pad-hit iterator routines
76static Int_t sMaxIterPad=0;
77static Int_t sCurIterPad=0;
78static TClonesArray *fClusters2;
79static TClonesArray *fHits2;
2e5f0f7b 80static TTree *TrH1;
ddae0931 81
fe4da5cc 82ClassImp(AliRICH)
ddae0931 83
84//___________________________________________
fe4da5cc 85AliRICH::AliRICH()
86{
237c933d 87// Default constructor for RICH manager class
88
ddae0931 89 fIshunt = 0;
90 fHits = 0;
2e5f0f7b 91 fPadHits = 0;
92 fNPadHits = 0;
93 fNcerenkovs = 0;
ddae0931 94 fDchambers = 0;
ddae0931 95 fCerenkovs = 0;
96 fNdch = 0;
db481a6e 97 fNrawch = 0;
98 fNrechits = 0;
fe4da5cc 99}
ddae0931 100
101//___________________________________________
fe4da5cc 102AliRICH::AliRICH(const char *name, const char *title)
ddae0931 103 : AliDetector(name,title)
fe4da5cc 104{
ddae0931 105//Begin_Html
106/*
107 <img src="gif/alirich.gif">
108*/
109//End_Html
110
2e5f0f7b 111 fHits = new TClonesArray("AliRICHHit",1000 );
1cedd08a 112 gAlice->AddHitList(fHits);
2e5f0f7b 113 fPadHits = new TClonesArray("AliRICHPadHit",100000);
114 fCerenkovs = new TClonesArray("AliRICHCerenkov",1000);
115 gAlice->AddHitList(fCerenkovs);
116 //gAlice->AddHitList(fHits);
117 fNPadHits = 0;
118 fNcerenkovs = 0;
119 fIshunt = 0;
ddae0931 120
237c933d 121 fNdch = new Int_t[kNCH];
ddae0931 122
237c933d 123 fDchambers = new TObjArray(kNCH);
2e5f0f7b 124
237c933d 125 fRecHits = new TObjArray(kNCH);
ddae0931 126
127 Int_t i;
128
237c933d 129 for (i=0; i<kNCH ;i++) {
2e5f0f7b 130 (*fDchambers)[i] = new TClonesArray("AliRICHDigit",10000);
ddae0931 131 fNdch[i]=0;
132 }
2e5f0f7b 133
237c933d 134 fNrawch = new Int_t[kNCH];
ddae0931 135
237c933d 136 fRawClusters = new TObjArray(kNCH);
d28b5fc2 137 //printf("Created fRwClusters with adress:%p",fRawClusters);
2e5f0f7b 138
237c933d 139 for (i=0; i<kNCH ;i++) {
2e5f0f7b 140 (*fRawClusters)[i] = new TClonesArray("AliRICHRawCluster",10000);
141 fNrawch[i]=0;
142 }
143
237c933d 144 fNrechits = new Int_t[kNCH];
ddae0931 145
237c933d 146 for (i=0; i<kNCH ;i++) {
2e5f0f7b 147 (*fRecHits)[i] = new TClonesArray("AliRICHRecHit",1000);
148 }
d28b5fc2 149 //printf("Created fRecHits with adress:%p",fRecHits);
2e5f0f7b 150
151
ddae0931 152 SetMarkerColor(kRed);
fe4da5cc 153}
154
237c933d 155AliRICH::AliRICH(const AliRICH& RICH)
156{
157// Copy Constructor
158}
159
160
ddae0931 161//___________________________________________
fe4da5cc 162AliRICH::~AliRICH()
163{
237c933d 164
165// Destructor of RICH manager class
166
ddae0931 167 fIshunt = 0;
168 delete fHits;
2e5f0f7b 169 delete fPadHits;
ddae0931 170 delete fCerenkovs;
fe4da5cc 171}
172
ddae0931 173//___________________________________________
fe4da5cc 174void AliRICH::AddHit(Int_t track, Int_t *vol, Float_t *hits)
175{
237c933d 176
177//
178// Adds a hit to the Hits list
179//
180
ddae0931 181 TClonesArray &lhits = *fHits;
2e5f0f7b 182 new(lhits[fNhits++]) AliRICHHit(fIshunt,track,vol,hits);
fe4da5cc 183}
fe4da5cc 184//_____________________________________________________________________________
ddae0931 185void AliRICH::AddCerenkov(Int_t track, Int_t *vol, Float_t *cerenkovs)
186{
237c933d 187
188//
189// Adds a RICH cerenkov hit to the Cerenkov Hits list
190//
191
ddae0931 192 TClonesArray &lcerenkovs = *fCerenkovs;
193 new(lcerenkovs[fNcerenkovs++]) AliRICHCerenkov(fIshunt,track,vol,cerenkovs);
2e5f0f7b 194 //printf ("Done for Cerenkov %d\n\n\n\n",fNcerenkovs);
fe4da5cc 195}
ddae0931 196//___________________________________________
2e5f0f7b 197void AliRICH::AddPadHit(Int_t *clhits)
ddae0931 198{
237c933d 199
200//
201// Add a RICH pad hit to the list
202//
203
2e5f0f7b 204 TClonesArray &lPadHits = *fPadHits;
205 new(lPadHits[fNPadHits++]) AliRICHPadHit(clhits);
33984590 206}
fe4da5cc 207//_____________________________________________________________________________
ddae0931 208void AliRICH::AddDigits(Int_t id, Int_t *tracks, Int_t *charges, Int_t *digits)
209{
237c933d 210
211 //
212 // Add a RICH digit to the list
213 //
ddae0931 214
215 TClonesArray &ldigits = *((TClonesArray*)(*fDchambers)[id]);
2e5f0f7b 216 new(ldigits[fNdch[id]++]) AliRICHDigit(tracks,charges,digits);
fe4da5cc 217}
218
219//_____________________________________________________________________________
2e5f0f7b 220void AliRICH::AddRawCluster(Int_t id, const AliRICHRawCluster& c)
fe4da5cc 221{
ddae0931 222 //
2e5f0f7b 223 // Add a RICH digit to the list
ddae0931 224 //
2e5f0f7b 225
226 TClonesArray &lrawcl = *((TClonesArray*)(*fRawClusters)[id]);
227 new(lrawcl[fNrawch[id]++]) AliRICHRawCluster(c);
fe4da5cc 228}
229
2e5f0f7b 230//_____________________________________________________________________________
33984590 231void AliRICH::AddRecHit(Int_t id, Float_t *rechit, Float_t *photons, Int_t *padsx, Int_t* padsy)
2e5f0f7b 232{
237c933d 233
234 //
235 // Add a RICH reconstructed hit to the list
236 //
fe4da5cc 237
2e5f0f7b 238 TClonesArray &lrec = *((TClonesArray*)(*fRecHits)[id]);
33984590 239 new(lrec[fNrechits[id]++]) AliRICHRecHit(id,rechit,photons,padsx,padsy);
2e5f0f7b 240}
fe4da5cc 241
ddae0931 242//___________________________________________
243void AliRICH::BuildGeometry()
244
fe4da5cc 245{
237c933d 246
247 //
248 // Builds a TNode geometry for event display
249 //
250 TNode *node, *top;
ddae0931 251
252 const int kColorRICH = kGreen;
253 //
237c933d 254 top=gAlice->GetGeometry()->GetNode("alice");
ddae0931 255
256
257 new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15);
258
237c933d 259 top->cd();
ddae0931 260 Float_t pos1[3]={0,471.8999,165.2599};
2e5f0f7b 261 //Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],
262 new TRotMatrix("rot993","rot993",90,0,70.69,90,19.30999,-90);
237c933d 263 node = new TNode("RICH1","RICH1","S_RICH",pos1[0],pos1[1],pos1[2],"rot993");
ddae0931 264
265
237c933d 266 node->SetLineColor(kColorRICH);
267 fNodes->Add(node);
268 top->cd();
ddae0931 269
270 Float_t pos2[3]={171,470,0};
2e5f0f7b 271 //Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],
272 new TRotMatrix("rot994","rot994",90,-20,90,70,0,0);
237c933d 273 node = new TNode("RICH2","RICH2","S_RICH",pos2[0],pos2[1],pos2[2],"rot994");
ddae0931 274
275
237c933d 276 node->SetLineColor(kColorRICH);
277 fNodes->Add(node);
278 top->cd();
ddae0931 279 Float_t pos3[3]={0,500,0};
2e5f0f7b 280 //Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],
281 new TRotMatrix("rot995","rot995",90,0,90,90,0,0);
237c933d 282 node = new TNode("RICH3","RICH3","S_RICH",pos3[0],pos3[1],pos3[2],"rot995");
ddae0931 283
284
237c933d 285 node->SetLineColor(kColorRICH);
286 fNodes->Add(node);
287 top->cd();
ddae0931 288 Float_t pos4[3]={-171,470,0};
2e5f0f7b 289 //Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2],
290 new TRotMatrix("rot996","rot996",90,20,90,110,0,0);
237c933d 291 node = new TNode("RICH4","RICH4","S_RICH",pos4[0],pos4[1],pos4[2],"rot996");
ddae0931 292
293
237c933d 294 node->SetLineColor(kColorRICH);
295 fNodes->Add(node);
296 top->cd();
ddae0931 297 Float_t pos5[3]={161.3999,443.3999,-165.3};
2e5f0f7b 298 //Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],
299 new TRotMatrix("rot997","rot997",90,340,108.1999,70,18.2,70);
237c933d 300 node = new TNode("RICH5","RICH5","S_RICH",pos5[0],pos5[1],pos5[2],"rot997");
ddae0931 301
237c933d 302 node->SetLineColor(kColorRICH);
303 fNodes->Add(node);
304 top->cd();
ddae0931 305 Float_t pos6[3]={0., 471.9, -165.3,};
2e5f0f7b 306 //Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],
307 new TRotMatrix("rot998","rot998",90,0,109.3099,90,19.30999,90);
237c933d 308 node = new TNode("RICH6","RICH6","S_RICH",pos6[0],pos6[1],pos6[2],"rot998");
ddae0931 309
310
237c933d 311 node->SetLineColor(kColorRICH);
312 fNodes->Add(node);
313 top->cd();
ddae0931 314 Float_t pos7[3]={-161.399,443.3999,-165.3};
2e5f0f7b 315 //Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],
316 new TRotMatrix("rot999","rot999",90,20,108.1999,110,18.2,110);
237c933d 317 node = new TNode("RICH7","RICH7","S_RICH",pos7[0],pos7[1],pos7[2],"rot999");
318 node->SetLineColor(kColorRICH);
319 fNodes->Add(node);
ddae0931 320
fe4da5cc 321}
322
452a64c6 323//___________________________________________
324void AliRICH::CreateGeometry()
325{
326 //
327 // Create the geometry for RICH version 1
328 //
329 // Modified by: N. Colonna (INFN - BARI, Nicola.Colonna@ba.infn.it)
330 // R.A. Fini (INFN - BARI, Rosanna.Fini@ba.infn.it)
331 // R.A. Loconsole (Bari University, loco@riscom.ba.infn.it)
332 //
333 //Begin_Html
334 /*
335 <img src="picts/AliRICHv1.gif">
336 */
337 //End_Html
338 //Begin_Html
339 /*
340 <img src="picts/AliRICHv1Tree.gif">
341 */
342 //End_Html
343
344 AliRICH *pRICH = (AliRICH *) gAlice->GetDetector("RICH");
345 AliRICHSegmentation* segmentation;
346 AliRICHGeometry* geometry;
347 AliRICHChamber* iChamber;
348
349 iChamber = &(pRICH->Chamber(0));
350 segmentation=iChamber->GetSegmentationModel(0);
351 geometry=iChamber->GetGeometryModel();
352
353 Float_t distance;
354 distance = geometry->GetFreonThickness()/2 + geometry->GetQuartzThickness() + geometry->GetGapThickness();
355 geometry->SetRadiatorToPads(distance);
356
357
358 Int_t *idtmed = fIdtmed->GetArray()-999;
359
360 Int_t i;
361 Float_t zs;
362 Int_t idrotm[1099];
363 Float_t par[3];
364
365 // --- Define the RICH detector
366 // External aluminium box
367 par[0] = 71.1;
368 par[1] = 11.5; //Original Settings
369 par[2] = 73.15;
370 /*par[0] = 73.15;
371 par[1] = 11.5;
372 par[2] = 71.1;*/
373 gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
374
375 // Sensitive part of the whole RICH
376 par[0] = 64.8;
377 par[1] = 11.5; //Original Settings
378 par[2] = 66.55;
379 /*par[0] = 66.55;
380 par[1] = 11.5;
381 par[2] = 64.8;*/
382 gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
383
384 // Honeycomb
385 par[0] = 63.1;
386 par[1] = .188; //Original Settings
387 par[2] = 66.55;
388 /*par[0] = 66.55;
389 par[1] = .188;
390 par[2] = 63.1;*/
391 gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
392
393 // Aluminium sheet
394 par[0] = 63.1;
395 par[1] = .025; //Original Settings
396 par[2] = 66.55;
397 /*par[0] = 66.5;
398 par[1] = .025;
399 par[2] = 63.1;*/
400 gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
401
402 // Quartz
403 par[0] = geometry->GetQuartzWidth()/2;
404 par[1] = geometry->GetQuartzThickness()/2;
405 par[2] = geometry->GetQuartzLength()/2;
406 /*par[0] = 63.1;
407 par[1] = .25; //Original Settings
408 par[2] = 65.5;*/
409 /*par[0] = geometry->GetQuartzWidth()/2;
410 par[1] = geometry->GetQuartzThickness()/2;
411 par[2] = geometry->GetQuartzLength()/2;*/
412 //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f %f %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[0],par[1],par[2]);
413 gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
414
415 // Spacers (cylinders)
416 par[0] = 0.;
417 par[1] = .5;
418 par[2] = geometry->GetFreonThickness()/2;
419 gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
420
421 // Opaque quartz
422 par[0] = 61.95;
423 par[1] = .2; //Original Settings
424 par[2] = 66.5;
425 /*par[0] = 66.5;
426 par[1] = .2;
427 par[2] = 61.95;*/
428 gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
429
430 // Frame of opaque quartz
431 par[0] = geometry->GetOuterFreonWidth()/2;
432 par[1] = geometry->GetFreonThickness()/2;
433 par[2] = geometry->GetOuterFreonLength()/2 + 1;
434 /*par[0] = 20.65;
435 par[1] = .5; //Original Settings
436 par[2] = 66.5;*/
437 /*par[0] = 66.5;
438 par[1] = .5;
439 par[2] = 20.65;*/
440 gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
441
442 par[0] = geometry->GetInnerFreonWidth()/2;
443 par[1] = geometry->GetFreonThickness()/2;
444 par[2] = geometry->GetInnerFreonLength()/2 + 1;
445 gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
446
447 // Little bar of opaque quartz
448 par[0] = .275;
449 par[1] = geometry->GetQuartzThickness()/2;
450 par[2] = geometry->GetInnerFreonLength()/2 - 2.4;
451 /*par[0] = .275;
452 par[1] = .25; //Original Settings
453 par[2] = 63.1;*/
454 /*par[0] = 63.1;
455 par[1] = .25;
456 par[2] = .275;*/
457 gMC->Gsvolu("BARR", "BOX ", idtmed[1007], par, 3);
458
459 // Freon
460 par[0] = geometry->GetOuterFreonWidth()/2;
461 par[1] = geometry->GetFreonThickness()/2;
462 par[2] = geometry->GetOuterFreonLength()/2;
463 /*par[0] = 20.15;
464 par[1] = .5; //Original Settings
465 par[2] = 65.5;*/
466 /*par[0] = 65.5;
467 par[1] = .5;
468 par[2] = 20.15;*/
469 gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
470
471 par[0] = geometry->GetInnerFreonWidth()/2;
472 par[1] = geometry->GetFreonThickness()/2;
473 par[2] = geometry->GetInnerFreonLength()/2;
474 gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
475
476 // Methane
477 par[0] = 64.8;
478 par[1] = geometry->GetGapThickness()/2;
479 //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[1]);
480 par[2] = 64.8;
481 gMC->Gsvolu("META", "BOX ", idtmed[1004], par, 3);
482
483 // Methane gap
484 par[0] = 64.8;
485 par[1] = geometry->GetProximityGapThickness()/2;
486 //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[1]);
487 par[2] = 64.8;
488 gMC->Gsvolu("GAP ", "BOX ", idtmed[1008], par, 3);
489
490 // CsI photocathode
491 par[0] = 64.8;
492 par[1] = .25;
493 par[2] = 64.8;
494 gMC->Gsvolu("CSI ", "BOX ", idtmed[1005], par, 3);
495
496 // Anode grid
497 par[0] = 0.;
498 par[1] = .001;
499 par[2] = 20.;
500 gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
501
502 // --- Places the detectors defined with GSVOLU
503 // Place material inside RICH
504 gMC->Gspos("SRIC", 1, "RICH", 0., 0., 0., 0, "ONLY");
505
506 gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 -.05 - .376 -.025, 0., 0, "ONLY");
507 gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 -.05 - .188, 0., 0, "ONLY");
508 gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 - .025, 0., 0, "ONLY");
509 gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .2, 0., 0, "ONLY");
510
511 AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
512
513 Int_t nspacers = (Int_t)(TMath::Abs(geometry->GetInnerFreonLength()/14.4));
514 //printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n Spacers:%d\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",nspacers);
515
516 //printf("Nspacers: %d", nspacers);
517
518 //for (i = 1; i <= 9; ++i) {
519 //zs = (5 - i) * 14.4; //Original settings
520 for (i = 0; i < nspacers; i++) {
521 zs = (TMath::Abs(nspacers/2) - i) * 14.4;
522 gMC->Gspos("SPAC", i, "FRE1", 6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
523 //gMC->Gspos("SPAC", i, "FRE1", zs, 0., 6.7, idrotm[1019], "ONLY");
524 }
525 //for (i = 10; i <= 18; ++i) {
526 //zs = (14 - i) * 14.4; //Original settings
527 for (i = nspacers; i < nspacers*2; ++i) {
528 zs = (nspacers + TMath::Abs(nspacers/2) - i) * 14.4;
529 gMC->Gspos("SPAC", i, "FRE1", -6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
530 //gMC->Gspos("SPAC", i, "FRE1", zs, 0., -6.7, idrotm[1019], "ONLY");
531 }
532
533 //for (i = 1; i <= 9; ++i) {
534 //zs = (5 - i) * 14.4; //Original settings
535 for (i = 0; i < nspacers; i++) {
536 zs = (TMath::Abs(nspacers/2) - i) * 14.4;
537 gMC->Gspos("SPAC", i, "FRE2", 6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
538 //gMC->Gspos("SPAC", i, "FRE2", zs, 0., 6.7, idrotm[1019], "ONLY");
539 }
540 //for (i = 10; i <= 18; ++i) {
541 //zs = (5 - i) * 14.4; //Original settings
542 for (i = nspacers; i < nspacers*2; ++i) {
543 zs = (nspacers + TMath::Abs(nspacers/2) - i) * 14.4;
544 gMC->Gspos("SPAC", i, "FRE2", -6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
545 //gMC->Gspos("SPAC", i, "FRE2", zs, 0., -6.7, idrotm[1019], "ONLY");
546 }
547
548 /*gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
549 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
550 gMC->Gspos("OQF1", 1, "SRIC", 31.3, -4.724, 41.3, 0, "ONLY");
551 gMC->Gspos("OQF2", 2, "SRIC", 0., -4.724, 0., 0, "ONLY");
552 gMC->Gspos("OQF1", 3, "SRIC", -31.3, -4.724, -41.3, 0, "ONLY");
553 gMC->Gspos("BARR", 1, "QUAR", -21.65, 0., 0., 0, "ONLY"); //Original settings
554 gMC->Gspos("BARR", 2, "QUAR", 21.65, 0., 0., 0, "ONLY"); //Original settings
555 gMC->Gspos("QUAR", 1, "SRIC", 0., -3.974, 0., 0, "ONLY");
556 gMC->Gspos("GAP ", 1, "META", 0., 4.8, 0., 0, "ONLY");
557 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
558 gMC->Gspos("CSI ", 1, "SRIC", 0., 6.526, 0., 0, "ONLY");*/
559
560
561 gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
562 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
563 gMC->Gspos("OQF1", 1, "SRIC", geometry->GetOuterFreonWidth()/2 + geometry->GetInnerFreonWidth()/2, 1.276 - geometry->GetGapThickness()/2- geometry->GetQuartzThickness() -geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings (31.3)
564 gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings
565 gMC->Gspos("OQF1", 3, "SRIC", - (geometry->GetOuterFreonWidth()/2 + geometry->GetInnerFreonWidth()/2), 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings (-31.3)
566 gMC->Gspos("BARR", 1, "QUAR", -21.65, 0., 0., 0, "ONLY"); //Original settings
567 gMC->Gspos("BARR", 2, "QUAR", 21.65, 0., 0., 0, "ONLY"); //Original settings
568 gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness()/2, 0., 0, "ONLY");
569 gMC->Gspos("GAP ", 1, "META", 0., geometry->GetGapThickness()/2 - geometry->GetProximityGapThickness()/2 - 0.0001, 0., 0, "ONLY");
570 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
571 gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + geometry->GetGapThickness()/2 + .25, 0., 0, "ONLY");
572
573 //printf("Position of the gap: %f to %f\n", 1.276 + geometry->GetGapThickness()/2 - geometry->GetProximityGapThickness()/2 - .2, 1.276 + geometry->GetGapThickness()/2 - geometry->GetProximityGapThickness()/2 + .2);
574
575 // Place RICH inside ALICE apparatus
576
577 AliMatrix(idrotm[1000], 90., 0., 70.69, 90., 19.31, -90.);
578 AliMatrix(idrotm[1001], 90., -20., 90., 70., 0., 0.);
579 AliMatrix(idrotm[1002], 90., 0., 90., 90., 0., 0.);
580 AliMatrix(idrotm[1003], 90., 20., 90., 110., 0., 0.);
581 AliMatrix(idrotm[1004], 90., 340., 108.2, 70., 18.2, 70.);
582 AliMatrix(idrotm[1005], 90., 0., 109.31, 90., 19.31, 90.);
583 AliMatrix(idrotm[1006], 90., 20., 108.2, 110., 18.2, 110.);
584
585 gMC->Gspos("RICH", 1, "ALIC", 0., 471.9, 165.26, idrotm[1000], "ONLY");
586 gMC->Gspos("RICH", 2, "ALIC", 171., 470., 0., idrotm[1001], "ONLY");
587 gMC->Gspos("RICH", 3, "ALIC", 0., 500., 0., idrotm[1002], "ONLY");
588 gMC->Gspos("RICH", 4, "ALIC", -171., 470., 0., idrotm[1003], "ONLY");
589 gMC->Gspos("RICH", 5, "ALIC", 161.4, 443.4, -165.3, idrotm[1004], "ONLY");
590 gMC->Gspos("RICH", 6, "ALIC", 0., 471.9, -165.3, idrotm[1005], "ONLY");
591 gMC->Gspos("RICH", 7, "ALIC", -161.4, 443.4, -165.3, idrotm[1006], "ONLY");
592
593}
594
595
596//___________________________________________
597void AliRICH::CreateMaterials()
598{
599 //
600 // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
601 // ORIGIN : NICK VAN EIJNDHOVEN
602 // Modified by: N. Colonna (INFN - BARI, Nicola.Colonna@ba.infn.it)
603 // R.A. Fini (INFN - BARI, Rosanna.Fini@ba.infn.it)
604 // R.A. Loconsole (Bari University, loco@riscom.ba.infn.it)
605 //
606 Int_t isxfld = gAlice->Field()->Integ();
607 Float_t sxmgmx = gAlice->Field()->Max();
608 Int_t i;
609
610 /************************************Antonnelo's Values (14-vectors)*****************************************/
611 /*
612 Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,
613 6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 };
614 Float_t rIndexQuarz[14] = { 1.528309,1.533333,
615 1.538243,1.544223,1.550568,1.55777,
616 1.565463,1.574765,1.584831,1.597027,
617 1.611858,1.6277,1.6472,1.6724 };
618 Float_t rIndexOpaqueQuarz[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
619 Float_t rIndexMethane[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
620 Float_t rIndexGrid[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
621 Float_t abscoFreon[14] = { 179.0987,179.0987,
622 179.0987,179.0987,179.0987,142.92,56.65,13.95,10.43,7.07,2.03,.5773,.33496,0. };
623 //Float_t abscoFreon[14] = { 1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,
624 // 1e-5,1e-5,1e-5,1e-5,1e-5 };
625 Float_t abscoQuarz[14] = { 64.035,39.98,35.665,31.262,27.527,22.815,21.04,17.52,
626 14.177,9.282,4.0925,1.149,.3627,.10857 };
627 Float_t abscoOpaqueQuarz[14] = { 1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,
628 1e-5,1e-5,1e-5,1e-5,1e-5 };
629 Float_t abscoCsI[14] = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
630 1e-4,1e-4,1e-4,1e-4 };
631 Float_t abscoMethane[14] = { 1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,
632 1e6,1e6,1e6 };
633 Float_t abscoGrid[14] = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
634 1e-4,1e-4,1e-4,1e-4 };
635 Float_t efficAll[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
636 Float_t efficCsI[14] = { 6e-4,.005,.0075,.01125,.045,.117,.135,.16575,
637 .17425,.1785,.1836,.1904,.1938,.221 };
638 Float_t efficGrid[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
639 */
640
641
642 /**********************************End of Antonnelo's Values**********************************/
643
644 /**********************************Values from rich_media.f (31-vectors)**********************************/
645
646
647 //Photons energy intervals
648 Float_t ppckov[26];
649 for (i=0;i<26;i++)
650 {
651 ppckov[i] = (Float_t(i)*0.1+5.5)*1e-9;
652 //printf ("Energy intervals: %e\n",ppckov[i]);
653 }
654
655
656 //Refraction index for quarz
657 Float_t rIndexQuarz[26];
658 Float_t e1= 10.666;
659 Float_t e2= 18.125;
660 Float_t f1= 46.411;
661 Float_t f2= 228.71;
662 for (i=0;i<26;i++)
663 {
664 Float_t ene=ppckov[i]*1e9;
665 Float_t a=f1/(e1*e1 - ene*ene);
666 Float_t b=f2/(e2*e2 - ene*ene);
667 rIndexQuarz[i] = TMath::Sqrt(1. + a + b );
668 //printf ("rIndexQuarz: %e\n",rIndexQuarz[i]);
669 }
670
671 //Refraction index for opaque quarz, methane and grid
672 Float_t rIndexOpaqueQuarz[26];
673 Float_t rIndexMethane[26];
674 Float_t rIndexGrid[26];
675 for (i=0;i<26;i++)
676 {
677 rIndexOpaqueQuarz[i]=1;
678 rIndexMethane[i]=1.000444;
679 rIndexGrid[i]=1;
680 //printf ("rIndexOpaqueQuarz , etc: %e, %e, %e\n",rIndexOpaqueQuarz[i], rIndexMethane[i], rIndexGrid[i]=1);
681 }
682
683 //Absorption index for freon
684 Float_t abscoFreon[26] = {179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987,
685 179.0987, 142.9206, 56.64957, 25.58622, 13.95293, 12.03905, 10.42953, 8.804196,
686 7.069031, 4.461292, 2.028366, 1.293013, .577267, .40746, .334964, 0., 0., 0.};
687
688 //Absorption index for quarz
689 /*Float_t Qzt [21] = {.0,.0,.005,.04,.35,.647,.769,.808,.829,.844,.853,.858,.869,.887,.903,.902,.902,
690 .906,.907,.907,.907};
691 Float_t Wavl2[] = {150.,155.,160.0,165.0,170.0,175.0,180.0,185.0,190.0,195.0,200.0,205.0,210.0,
692 215.0,220.0,225.0,230.0,235.0,240.0,245.0,250.0};
693 Float_t abscoQuarz[31];
694 for (Int_t i=0;i<31;i++)
695 {
696 Float_t Xlam = 1237.79 / (ppckov[i]*1e9);
697 if (Xlam <= 160) abscoQuarz[i] = 0;
698 if (Xlam > 250) abscoQuarz[i] = 1;
699 else
700 {
701 for (Int_t j=0;j<21;j++)
702 {
703 //printf ("Passed\n");
704 if (Xlam > Wavl2[j] && Xlam < Wavl2[j+1])
705 {
706 Float_t Dabs = (Qzt[j+1] - Qzt[j])/(Wavl2[j+1] - Wavl2[j]);
707 Float_t Abso = Qzt[j] + Dabs*(Xlam - Wavl2[j]);
708 abscoQuarz[i] = -5.0/(TMath::Log(Abso));
709 }
710 }
711 }
712 printf ("abscoQuarz: %e abscoFreon: %e for energy: %e\n",abscoQuarz[i],abscoFreon[i],ppckov[i]);
713 }*/
714
715 /*Float_t abscoQuarz[31] = {49.64211, 48.41296, 47.46989, 46.50492, 45.13682, 44.47883, 43.1929 , 41.30922, 40.5943 ,
716 39.82956, 38.98623, 38.6247 , 38.43448, 37.41084, 36.22575, 33.74852, 30.73901, 24.25086,
717 17.94531, 11.88753, 5.99128, 3.83503, 2.36661, 1.53155, 1.30582, 1.08574, .8779708,
718 .675275, 0., 0., 0.};
719
720 for (Int_t i=0;i<31;i++)
721 {
722 abscoQuarz[i] = abscoQuarz[i]/10;
723 }*/
724
725 Float_t abscoQuarz [26] = {105.8, 65.52, 48.58, 42.85, 35.79, 31.262, 28.598, 27.527, 25.007, 22.815, 21.004,
726 19.266, 17.525, 15.878, 14.177, 11.719, 9.282, 6.62, 4.0925, 2.601, 1.149, .667, .3627,
727 .192, .1497, .10857};
728
729 //Absorption index for methane
730 Float_t abscoMethane[26];
731 for (i=0;i<26;i++)
732 {
733 abscoMethane[i]=AbsoCH4(ppckov[i]*1e9);
734 //printf("abscoMethane: %e for energy: %e\n", abscoMethane[i],ppckov[i]*1e9);
735 }
736
737 //Absorption index for opaque quarz, csi and grid, efficiency for all and grid
738 Float_t abscoOpaqueQuarz[26];
739 Float_t abscoCsI[26];
740 Float_t abscoGrid[26];
741 Float_t efficAll[26];
742 Float_t efficGrid[26];
743 for (i=0;i<26;i++)
744 {
745 abscoOpaqueQuarz[i]=1e-5;
746 abscoCsI[i]=1e-4;
747 abscoGrid[i]=1e-4;
748 efficAll[i]=1;
749 efficGrid[i]=1;
750 //printf ("All must be 1: %e, %e, %e, %e, %e\n",abscoOpaqueQuarz[i],abscoCsI[i],abscoGrid[i],efficAll[i],efficGrid[i]);
751 }
752
753 //Efficiency for csi
754
755 Float_t efficCsI[26] = {0.000199999995, 0.000600000028, 0.000699999975, 0.00499999989, 0.00749999983, 0.010125,
756 0.0242999997, 0.0405000001, 0.0688500032, 0.105299994, 0.121500008, 0.141749993, 0.157949999,
757 0.162, 0.166050002, 0.167669997, 0.174299985, 0.176789999, 0.179279998, 0.182599992, 0.18592,
758 0.187579989, 0.189239994, 0.190899998, 0.207499996, 0.215799987};
759
760
761
762 //FRESNEL LOSS CORRECTION FOR PERPENDICULAR INCIDENCE AND
763 //UNPOLARIZED PHOTONS
764
765 for (i=0;i<26;i++)
766 {
767 efficCsI[i] = efficCsI[i]/(1.-Fresnel(ppckov[i]*1e9,1.,0));
768 //printf ("Fresnel result: %e for energy: %e\n",Fresnel(ppckov[i]*1e9,1.,0),ppckov[i]*1e9);
769 }
770
771 /*******************************************End of rich_media.f***************************************/
772
773
774
775
776
777
778 Float_t afre[2], agri, amet[2], aqua[2], ahon, zfre[2], zgri, zhon,
779 zmet[2], zqua[2];
780 Int_t nlmatfre;
781 Float_t densquao;
782 Int_t nlmatmet, nlmatqua;
783 Float_t wmatquao[2], rIndexFreon[26];
784 Float_t aquao[2], epsil, stmin, zquao[2];
785 Int_t nlmatquao;
786 Float_t radlal, densal, tmaxfd, deemax, stemax;
787 Float_t aal, zal, radlgri, densfre, radlhon, densgri, denshon,densqua, densmet, wmatfre[2], wmatmet[2], wmatqua[2];
788
789 Int_t *idtmed = fIdtmed->GetArray()-999;
790
791 TGeant3 *geant3 = (TGeant3*) gMC;
792
793 // --- Photon energy (GeV)
794 // --- Refraction indexes
795 for (i = 0; i < 26; ++i) {
796 rIndexFreon[i] = ppckov[i] * .0172 * 1e9 + 1.177;
797 //rIndexFreon[i] = 1;
798 //printf ("rIndexFreon: %e \n efficCsI: %e for energy: %e\n",rIndexFreon[i], efficCsI[i], ppckov[i]);
799 }
800
801 // --- Detection efficiencies (quantum efficiency for CsI)
802 // --- Define parameters for honeycomb.
803 // Used carbon of equivalent rad. lenght
804
805 ahon = 12.01;
806 zhon = 6.;
807 denshon = 2.265;
808 radlhon = 18.8;
809
810 // --- Parameters to include in GSMIXT, relative to Quarz (SiO2)
811
812 aqua[0] = 28.09;
813 aqua[1] = 16.;
814 zqua[0] = 14.;
815 zqua[1] = 8.;
816 densqua = 2.64;
817 nlmatqua = -2;
818 wmatqua[0] = 1.;
819 wmatqua[1] = 2.;
820
821 // --- Parameters to include in GSMIXT, relative to opaque Quarz (SiO2)
822
823 aquao[0] = 28.09;
824 aquao[1] = 16.;
825 zquao[0] = 14.;
826 zquao[1] = 8.;
827 densquao = 2.64;
828 nlmatquao = -2;
829 wmatquao[0] = 1.;
830 wmatquao[1] = 2.;
831
832 // --- Parameters to include in GSMIXT, relative to Freon (C6F14)
833
834 afre[0] = 12.;
835 afre[1] = 19.;
836 zfre[0] = 6.;
837 zfre[1] = 9.;
838 densfre = 1.7;
839 nlmatfre = -2;
840 wmatfre[0] = 6.;
841 wmatfre[1] = 14.;
842
843 // --- Parameters to include in GSMIXT, relative to methane (CH4)
844
845 amet[0] = 12.01;
846 amet[1] = 1.;
847 zmet[0] = 6.;
848 zmet[1] = 1.;
849 densmet = 7.17e-4;
850 nlmatmet = -2;
851 wmatmet[0] = 1.;
852 wmatmet[1] = 4.;
853
854 // --- Parameters to include in GSMIXT, relative to anode grid (Cu)
855
856 agri = 63.54;
857 zgri = 29.;
858 densgri = 8.96;
859 radlgri = 1.43;
860
861 // --- Parameters to include in GSMATE related to aluminium sheet
862
863 aal = 26.98;
864 zal = 13.;
865 densal = 2.7;
866 radlal = 8.9;
867
868 AliMaterial(1, "Air $", 14.61, 7.3, .001205, 30420., 67500);
869 AliMaterial(6, "HON", ahon, zhon, denshon, radlhon, 0);
870 AliMaterial(16, "CSI", ahon, zhon, denshon, radlhon, 0);
871 AliMixture(20, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
872 AliMixture(21, "QUAO", aquao, zquao, densquao, nlmatquao, wmatquao);
873 AliMixture(30, "FRE", afre, zfre, densfre, nlmatfre, wmatfre);
874 AliMixture(40, "MET", amet, zmet, densmet, nlmatmet, wmatmet);
875 AliMixture(41, "METG", amet, zmet, densmet, nlmatmet, wmatmet);
876 AliMaterial(11, "GRI", agri, zgri, densgri, radlgri, 0);
877 AliMaterial(50, "ALUM", aal, zal, densal, radlal, 0);
878
879 tmaxfd = -10.;
880 stemax = -.1;
881 deemax = -.2;
882 epsil = .001;
883 stmin = -.001;
884
885 AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
886 AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
887 AliMedium(3, "QUARZO$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
888 AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
889 AliMedium(5, "METANO$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
890 AliMedium(6, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
891 AliMedium(7, "GRIGLIA$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
892 AliMedium(8, "QUARZOO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
893 AliMedium(9, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, .1, -deemax, epsil, -stmin);
894 AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
895
896
897 geant3->Gsckov(idtmed[1000], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
898 geant3->Gsckov(idtmed[1001], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
899 geant3->Gsckov(idtmed[1002], 26, ppckov, abscoQuarz, efficAll,rIndexQuarz);
900 geant3->Gsckov(idtmed[1003], 26, ppckov, abscoFreon, efficAll,rIndexFreon);
901 geant3->Gsckov(idtmed[1004], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
902 geant3->Gsckov(idtmed[1005], 26, ppckov, abscoCsI, efficCsI, rIndexMethane);
903 geant3->Gsckov(idtmed[1006], 26, ppckov, abscoGrid, efficGrid, rIndexGrid);
904 geant3->Gsckov(idtmed[1007], 26, ppckov, abscoOpaqueQuarz, efficAll, rIndexOpaqueQuarz);
905 geant3->Gsckov(idtmed[1008], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
906 geant3->Gsckov(idtmed[1009], 26, ppckov, abscoGrid, efficGrid, rIndexGrid);
907}
908
909//___________________________________________
910
911Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
912{
913
914 //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
915
916 Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2,
917 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7,
918 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
919
920
921 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
922 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
923 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
924 1.72,1.53};
925
926 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
927 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
928 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
929 1.714,1.498};
930 Float_t xe=ene;
931 Int_t j=Int_t(xe*10)-49;
932 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
933 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
934
935 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
936 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
937
938 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
939 Float_t tanin=sinin/pdoti;
940
941 Float_t c1=cn*cn-ck*ck-sinin*sinin;
942 Float_t c2=4*cn*cn*ck*ck;
943 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
944 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
945
946 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
947 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
948
949
950 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
951 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
952
953 Float_t sigraf=18.;
954 Float_t lamb=1240/ene;
955 Float_t fresn;
956
957 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
958
959 if(pola)
960 {
961 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
962 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
963 }
964 else
965 fresn=0.5*(rp+rs);
966
967 fresn = fresn*rO;
968 return(fresn);
969}
970
971//__________________________________________
972Float_t AliRICH::AbsoCH4(Float_t x)
973{
974
975 //KLOSCH,SCH4(9),WL(9),EM(9),ALENGTH(31)
976 Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
977 //Float_t wl[9] = {153.,152.,151.,150.,149.,148.,147.,146.,145};
978 Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
979 const Float_t kLosch=2.686763E19; // LOSCHMIDT NUMBER IN CM-3
980 const Float_t kIgas1=100, kIgas2=0, kOxy=10., kWater=5., kPressure=750.,kTemperature=283.;
981 Float_t pn=kPressure/760.;
982 Float_t tn=kTemperature/273.16;
983
984
985// ------- METHANE CROSS SECTION -----------------
986// ASTROPH. J. 214, L47 (1978)
987
988 Float_t sm=0;
989 if (x<7.75)
990 sm=.06e-22;
991
992 if(x>=7.75 && x<=8.1)
993 {
994 Float_t c0=-1.655279e-1;
995 Float_t c1=6.307392e-2;
996 Float_t c2=-8.011441e-3;
997 Float_t c3=3.392126e-4;
998 sm=(c0+c1*x+c2*x*x+c3*x*x*x)*1.e-18;
999 }
1000
1001 if (x> 8.1)
1002 {
1003 Int_t j=0;
1004 while (x<=em[j] && x>=em[j+1])
1005 {
1006 j++;
1007 Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
1008 sm=(sch4[j]+a*(x-em[j]))*1e-22;
1009 }
1010 }
1011
1012 Float_t dm=(kIgas1/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn;
1013 Float_t abslm=1./sm/dm;
1014
1015// ------- ISOBUTHANE CROSS SECTION --------------
1016// i-C4H10 (ai) abs. length from curves in
1017// Lu-McDonald paper for BARI RICH workshop .
1018// -----------------------------------------------------------
1019
1020 Float_t ai;
1021 Float_t absli;
1022 if (kIgas2 != 0)
1023 {
1024 if (x<7.25)
1025 ai=100000000.;
1026
1027 if(x>=7.25 && x<7.375)
1028 ai=24.3;
1029
1030 if(x>=7.375)
1031 ai=.0000000001;
1032
1033 Float_t si = 1./(ai*kLosch*273.16/293.); // ISOB. CRO.SEC.IN CM2
1034 Float_t di=(kIgas2/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn;
1035 absli =1./si/di;
1036 }
1037 else
1038 absli=1.e18;
1039// ---------------------------------------------------------
1040//
1041// transmission of O2
1042//
1043// y= path in cm, x=energy in eV
1044// so= cross section for UV absorption in cm2
1045// do= O2 molecular density in cm-3
1046// ---------------------------------------------------------
1047
1048 Float_t abslo;
1049 Float_t so=0;
1050 if(x>=6.0)
1051 {
1052 if(x>=6.0 && x<6.5)
1053 {
1054 so=3.392709e-13 * TMath::Exp(2.864104 *x);
1055 so=so*1e-18;
1056 }
1057
1058 if(x>=6.5 && x<7.0)
1059 {
1060 so=2.910039e-34 * TMath::Exp(10.3337*x);
1061 so=so*1e-18;
1062 }
1063
1064
1065 if (x>=7.0)
1066 {
1067 Float_t a0=-73770.76;
1068 Float_t a1=46190.69;
1069 Float_t a2=-11475.44;
1070 Float_t a3=1412.611;
1071 Float_t a4=-86.07027;
1072 Float_t a5=2.074234;
1073 so= a0+(a1*x)+(a2*x*x)+(a3*x*x*x)+(a4*x*x*x*x)+(a5*x*x*x*x*x);
1074 so=so*1e-18;
1075 }
1076
1077 Float_t dox=(kOxy/1e6)*kLosch*pn/tn;
1078 abslo=1./so/dox;
1079 }
1080 else
1081 abslo=1.e18;
1082// ---------------------------------------------------------
1083//
1084// transmission of H2O
1085//
1086// y= path in cm, x=energy in eV
1087// sw= cross section for UV absorption in cm2
1088// dw= H2O molecular density in cm-3
1089// ---------------------------------------------------------
1090
1091 Float_t abslw;
1092
1093 Float_t b0=29231.65;
1094 Float_t b1=-15807.74;
1095 Float_t b2=3192.926;
1096 Float_t b3=-285.4809;
1097 Float_t b4=9.533944;
1098
1099 if(x>6.75)
1100 {
1101 Float_t sw= b0+(b1*x)+(b2*x*x)+(b3*x*x*x)+(b4*x*x*x*x);
1102 sw=sw*1e-18;
1103 Float_t dw=(kWater/1e6)*kLosch*pn/tn;
1104 abslw=1./sw/dw;
1105 }
1106 else
1107 abslw=1.e18;
1108
1109// ---------------------------------------------------------
1110
1111 Float_t alength=1./(1./abslm+1./absli+1./abslo+1./abslw);
1112 return (alength);
1113}
1114
1115
1116
ddae0931 1117//___________________________________________
1118Int_t AliRICH::DistancetoPrimitive(Int_t , Int_t )
1119{
237c933d 1120
1121// Default value
1122
ddae0931 1123 return 9999;
1124}
fe4da5cc 1125
ddae0931 1126//___________________________________________
1127void AliRICH::MakeBranch(Option_t* option)
fe4da5cc 1128{
237c933d 1129 // Create Tree branches for the RICH.
fe4da5cc 1130
237c933d 1131 const Int_t kBufferSize = 4000;
ddae0931 1132 char branchname[20];
fe4da5cc 1133
ddae0931 1134
1135 AliDetector::MakeBranch(option);
1136 sprintf(branchname,"%sCerenkov",GetName());
1137 if (fCerenkovs && gAlice->TreeH()) {
237c933d 1138 gAlice->TreeH()->Branch(branchname,&fCerenkovs, kBufferSize);
ddae0931 1139 printf("Making Branch %s for Cerenkov Hits\n",branchname);
fe4da5cc 1140 }
ddae0931 1141
2e5f0f7b 1142 sprintf(branchname,"%sPadHits",GetName());
1143 if (fPadHits && gAlice->TreeH()) {
237c933d 1144 gAlice->TreeH()->Branch(branchname,&fPadHits, kBufferSize);
2e5f0f7b 1145 printf("Making Branch %s for PadHits\n",branchname);
fe4da5cc 1146 }
1147
ddae0931 1148// one branch for digits per chamber
1149 Int_t i;
1150
237c933d 1151 for (i=0; i<kNCH ;i++) {
ddae0931 1152 sprintf(branchname,"%sDigits%d",GetName(),i+1);
1153
1154 if (fDchambers && gAlice->TreeD()) {
237c933d 1155 gAlice->TreeD()->Branch(branchname,&((*fDchambers)[i]), kBufferSize);
ddae0931 1156 printf("Making Branch %s for digits in chamber %d\n",branchname,i+1);
1157 }
fe4da5cc 1158 }
2e5f0f7b 1159
1160// one branch for raw clusters per chamber
237c933d 1161 for (i=0; i<kNCH ;i++) {
2e5f0f7b 1162 sprintf(branchname,"%sRawClusters%d",GetName(),i+1);
1163
1164 if (fRawClusters && gAlice->TreeR()) {
237c933d 1165 gAlice->TreeR()->Branch(branchname,&((*fRawClusters)[i]), kBufferSize);
2e5f0f7b 1166 printf("Making Branch %s for raw clusters in chamber %d\n",branchname,i+1);
1167 }
1168 }
1169
1170 // one branch for rec hits per chamber
237c933d 1171 for (i=0; i<kNCH ;i++) {
2e5f0f7b 1172 sprintf(branchname,"%sRecHits%d",GetName(),i+1);
1173
1174 if (fRecHits && gAlice->TreeR()) {
237c933d 1175 gAlice->TreeR()->Branch(branchname,&((*fRecHits)[i]), kBufferSize);
2e5f0f7b 1176 printf("Making Branch %s for rec. hits in chamber %d\n",branchname,i+1);
1177 }
1178 }
fe4da5cc 1179}
1180
ddae0931 1181//___________________________________________
1182void AliRICH::SetTreeAddress()
fe4da5cc 1183{
237c933d 1184 // Set branch address for the Hits and Digits Tree.
2e5f0f7b 1185 char branchname[20];
1186 Int_t i;
1187
ddae0931 1188 AliDetector::SetTreeAddress();
1189
1190 TBranch *branch;
1191 TTree *treeH = gAlice->TreeH();
1192 TTree *treeD = gAlice->TreeD();
2e5f0f7b 1193 TTree *treeR = gAlice->TreeR();
ddae0931 1194
1195 if (treeH) {
2e5f0f7b 1196 if (fPadHits) {
1197 branch = treeH->GetBranch("RICHPadHits");
1198 if (branch) branch->SetAddress(&fPadHits);
fe4da5cc 1199 }
ddae0931 1200 if (fCerenkovs) {
1201 branch = treeH->GetBranch("RICHCerenkov");
1202 if (branch) branch->SetAddress(&fCerenkovs);
fe4da5cc 1203 }
ddae0931 1204 }
1205
1206 if (treeD) {
237c933d 1207 for (int i=0; i<kNCH; i++) {
ddae0931 1208 sprintf(branchname,"%sDigits%d",GetName(),i+1);
1209 if (fDchambers) {
1210 branch = treeD->GetBranch(branchname);
1211 if (branch) branch->SetAddress(&((*fDchambers)[i]));
1212 }
fe4da5cc 1213 }
fe4da5cc 1214 }
2e5f0f7b 1215 if (treeR) {
237c933d 1216 for (i=0; i<kNCH; i++) {
2e5f0f7b 1217 sprintf(branchname,"%sRawClusters%d",GetName(),i+1);
1218 if (fRawClusters) {
1219 branch = treeR->GetBranch(branchname);
1220 if (branch) branch->SetAddress(&((*fRawClusters)[i]));
1221 }
1222 }
1223
237c933d 1224 for (i=0; i<kNCH; i++) {
2e5f0f7b 1225 sprintf(branchname,"%sRecHits%d",GetName(),i+1);
1226 if (fRecHits) {
1227 branch = treeR->GetBranch(branchname);
1228 if (branch) branch->SetAddress(&((*fRecHits)[i]));
1229 }
1230 }
1231
1232 }
ddae0931 1233}
1234//___________________________________________
1235void AliRICH::ResetHits()
1236{
237c933d 1237 // Reset number of clusters and the cluster array for this detector
ddae0931 1238 AliDetector::ResetHits();
2e5f0f7b 1239 fNPadHits = 0;
1240 fNcerenkovs = 0;
1241 if (fPadHits) fPadHits->Clear();
ddae0931 1242 if (fCerenkovs) fCerenkovs->Clear();
fe4da5cc 1243}
1244
2e5f0f7b 1245
ddae0931 1246//____________________________________________
1247void AliRICH::ResetDigits()
1248{
237c933d 1249 //
1250 // Reset number of digits and the digits array for this detector
1251 //
1252 for ( int i=0;i<kNCH;i++ ) {
ddae0931 1253 if ((*fDchambers)[i]) (*fDchambers)[i]->Clear();
1254 if (fNdch) fNdch[i]=0;
1255 }
1256}
2e5f0f7b 1257
ddae0931 1258//____________________________________________
2e5f0f7b 1259void AliRICH::ResetRawClusters()
fe4da5cc 1260{
237c933d 1261 //
1262 // Reset number of raw clusters and the raw clust array for this detector
1263 //
1264 for ( int i=0;i<kNCH;i++ ) {
2e5f0f7b 1265 if ((*fRawClusters)[i]) ((TClonesArray*)(*fRawClusters)[i])->Clear();
1266 if (fNrawch) fNrawch[i]=0;
fe4da5cc 1267 }
ddae0931 1268}
fe4da5cc 1269
2e5f0f7b 1270//____________________________________________
1271void AliRICH::ResetRecHits()
fe4da5cc 1272{
237c933d 1273 //
1274 // Reset number of raw clusters and the raw clust array for this detector
1275 //
2e5f0f7b 1276
237c933d 1277 for ( int i=0;i<kNCH;i++ ) {
2e5f0f7b 1278 if ((*fRecHits)[i]) ((TClonesArray*)(*fRecHits)[i])->Clear();
1279 if (fNrechits) fNrechits[i]=0;
1280 }
fe4da5cc 1281}
1282
ddae0931 1283//___________________________________________
2e5f0f7b 1284void AliRICH::SetGeometryModel(Int_t id, AliRICHGeometry *geometry)
fe4da5cc 1285{
237c933d 1286
1287//
1288// Setter for the RICH geometry model
1289//
1290
1291
2e5f0f7b 1292 ((AliRICHChamber*) (*fChambers)[id])->GeometryModel(geometry);
fe4da5cc 1293}
1294
ddae0931 1295//___________________________________________
2e5f0f7b 1296void AliRICH::SetSegmentationModel(Int_t id, AliRICHSegmentation *segmentation)
ddae0931 1297{
237c933d 1298
1299//
1300// Setter for the RICH segmentation model
1301//
1302
2e5f0f7b 1303 ((AliRICHChamber*) (*fChambers)[id])->SegmentationModel(segmentation);
ddae0931 1304}
fe4da5cc 1305
ddae0931 1306//___________________________________________
2e5f0f7b 1307void AliRICH::SetResponseModel(Int_t id, AliRICHResponse *response)
fe4da5cc 1308{
237c933d 1309
1310//
1311// Setter for the RICH response model
1312//
1313
2e5f0f7b 1314 ((AliRICHChamber*) (*fChambers)[id])->ResponseModel(response);
fe4da5cc 1315}
1316
2e5f0f7b 1317void AliRICH::SetReconstructionModel(Int_t id, AliRICHClusterFinder *reconst)
ddae0931 1318{
237c933d 1319
1320//
1321// Setter for the RICH reconstruction model (clusters)
1322//
1323
2e5f0f7b 1324 ((AliRICHChamber*) (*fChambers)[id])->ReconstructionModel(reconst);
fe4da5cc 1325}
1326
ddae0931 1327void AliRICH::SetNsec(Int_t id, Int_t nsec)
1328{
237c933d 1329
1330//
1331// Sets the number of padplanes
1332//
1333
2e5f0f7b 1334 ((AliRICHChamber*) (*fChambers)[id])->SetNsec(nsec);
ddae0931 1335}
1336
1337
1338//___________________________________________
ddae0931 1339void AliRICH::StepManager()
fe4da5cc 1340{
237c933d 1341
452a64c6 1342// Full Step Manager
1343
1344 Int_t copy, id;
1345 static Int_t idvol;
1346 static Int_t vol[2];
1347 Int_t ipart;
1348 static Float_t hits[18];
1349 static Float_t ckovData[19];
1350 TLorentzVector position;
1351 TLorentzVector momentum;
1352 Float_t pos[3];
1353 Float_t mom[4];
1354 Float_t localPos[3];
1355 Float_t localMom[4];
1356 Float_t localTheta,localPhi;
1357 Float_t theta,phi;
1358 Float_t destep, step;
1359 Float_t ranf[2];
1360 Int_t nPads;
1361 Float_t coscerenkov;
1362 static Float_t eloss, xhit, yhit, tlength;
1363 const Float_t kBig=1.e10;
1364
1365 TClonesArray &lhits = *fHits;
1366 TGeant3 *geant3 = (TGeant3*) gMC;
1367 TParticle *current = (TParticle*)(*gAlice->Particles())[gAlice->CurrentTrack()];
237c933d 1368
452a64c6 1369 //if (current->Energy()>1)
1370 //{
1371
1372 // Only gas gap inside chamber
1373 // Tag chambers and record hits when track enters
1374
1375 idvol=-1;
1376 id=gMC->CurrentVolID(copy);
1377 Float_t cherenkovLoss=0;
1378 //gAlice->KeepTrack(gAlice->CurrentTrack());
1379
1380 gMC->TrackPosition(position);
1381 pos[0]=position(0);
1382 pos[1]=position(1);
1383 pos[2]=position(2);
e51a3fa9 1384 bzero(ckovData,sizeof(ckovData)*19);
452a64c6 1385 ckovData[1] = pos[0]; // X-position for hit
1386 ckovData[2] = pos[1]; // Y-position for hit
1387 ckovData[3] = pos[2]; // Z-position for hit
1388 //ckovData[11] = gAlice->CurrentTrack();
1389
1390 //AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
1391
1392 /********************Store production parameters for Cerenkov photons************************/
1393//is it a Cerenkov photon?
1394 if (gMC->TrackPid() == 50000050) {
1395
1396 //if (gMC->VolId("GAP ")==gMC->CurrentVolID(copy))
1397 //{
1398 Float_t ckovEnergy = current->Energy();
1399 //energy interval for tracking
1400 if (ckovEnergy > 5.6e-09 && ckovEnergy < 7.8e-09 )
1401 //if (ckovEnergy > 0)
1402 {
1403 if (gMC->IsTrackEntering()){ //is track entering?
1404 if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
1405 { //is it in freo?
1406 if (geant3->Gctrak()->nstep<1){ //is it the first step?
1407 Int_t mother = current->GetFirstMother();
1408
1409 //printf("Second Mother:%d\n",current->GetSecondMother());
1410
1411 ckovData[10] = mother;
1412 ckovData[11] = gAlice->CurrentTrack();
1413 ckovData[12] = 1; //Media where photon was produced 1->Freon, 2->Quarz
1414 fCkovNumber++;
1415 fFreonProd=1;
1416 //printf("Index: %d\n",fCkovNumber);
1417 } //first step question
1418 } //freo question
1419
1420 if (geant3->Gctrak()->nstep<1){ //is it first step?
1421 if (gMC->VolId("QUAR")==gMC->CurrentVolID(copy)) //is it in quarz?
1422 {
1423 ckovData[12] = 2;
1424 } //quarz question
1425 } //first step question
1426
1427 //printf("Before %d\n",fFreonProd);
1428 } //track entering question
1429
1430 if (ckovData[12] == 1) //was it produced in Freon?
1431 //if (fFreonProd == 1)
1432 {
1433 if (gMC->IsTrackEntering()){ //is track entering?
1434 //printf("Got in");
1435 if (gMC->VolId("META")==gMC->CurrentVolID(copy)) //is it in gap?
1436 {
1437 //printf("Got in\n");
1438 gMC->TrackMomentum(momentum);
1439 mom[0]=momentum(0);
1440 mom[1]=momentum(1);
1441 mom[2]=momentum(2);
1442 mom[3]=momentum(3);
1443 // Z-position for hit
1444
1445
1446 /**************** Photons lost in second grid have to be calculated by hand************/
1447
1448 Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
1449 Float_t t = (1. - .025 / cophi) * (1. - .05 / cophi);
1450 gMC->Rndm(ranf, 1);
1451 //printf("grid calculation:%f\n",t);
1452 if (ranf[0] > t) {
1453 //geant3->StopTrack();
1454 ckovData[13] = 5;
1455 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1456 //printf("Lost one in grid\n");
1457 }
1458 /**********************************************************************************/
1459 } //gap
1460
1461 if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy)) //is it in csi?
1462 {
1463 gMC->TrackMomentum(momentum);
1464 mom[0]=momentum(0);
1465 mom[1]=momentum(1);
1466 mom[2]=momentum(2);
1467 mom[3]=momentum(3);
1468
1469 /********* Photons lost by Fresnel reflection have to be calculated by hand********/
1470 /***********************Cerenkov phtons (always polarised)*************************/
1471
1472 Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
1473 Float_t t = Fresnel(ckovEnergy*1e9,cophi,1);
1474 gMC->Rndm(ranf, 1);
1475 if (ranf[0] < t) {
1476 //geant3->StopTrack();
1477 ckovData[13] = 6;
1478 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1479 //printf("Lost by Fresnel\n");
1480 }
1481 /**********************************************************************************/
1482 }
1483 } //track entering?
1484
1485
1486 /********************Evaluation of losses************************/
1487 /******************still in the old fashion**********************/
1488
1489 Int_t i1 = geant3->Gctrak()->nmec; //number of physics mechanisms acting on the particle
1490 for (Int_t i = 0; i < i1; ++i) {
1491 // Reflection loss
1492 if (geant3->Gctrak()->lmec[i] == 106) { //was it reflected
1493 ckovData[13]=10;
1494 if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
1495 ckovData[13]=1;
1496 if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
1497 ckovData[13]=2;
1498 //geant3->StopTrack();
1499 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1500 } //reflection question
1501
1502
1503 // Absorption loss
1504 else if (geant3->Gctrak()->lmec[i] == 101) { //was it absorbed?
1505 ckovData[13]=20;
1506 if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
1507 ckovData[13]=11;
1508 if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
1509 ckovData[13]=12;
1510 if (gMC->CurrentVolID(copy) == gMC->VolId("META"))
1511 ckovData[13]=13;
1512 if (gMC->CurrentVolID(copy) == gMC->VolId("GAP "))
1513 ckovData[13]=13;
1514
1515 if (gMC->CurrentVolID(copy) == gMC->VolId("SRIC"))
1516 ckovData[13]=15;
1517
1518 // CsI inefficiency
1519 if (gMC->CurrentVolID(copy) == gMC->VolId("CSI ")) {
1520 ckovData[13]=16;
1521 }
1522 //geant3->StopTrack();
1523 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1524 //printf("Added cerenkov %d\n",fCkovNumber);
1525 } //absorption question
1526
1527
1528 // Photon goes out of tracking scope
1529 else if (geant3->Gctrak()->lmec[i] == 30) { //is it below energy treshold?
1530 ckovData[13]=21;
1531 //geant3->StopTrack();
1532 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1533 } // energy treshold question
1534 } //number of mechanisms cycle
1535 /**********************End of evaluation************************/
1536 } //freon production question
1537 } //energy interval question
1538 //}//inside the proximity gap question
1539 } //cerenkov photon question
1540
1541 /**************************************End of Production Parameters Storing*********************/
1542
1543
1544 /*******************************Treat photons that hit the CsI (Ckovs and Feedbacks)************/
1545
1546 if (gMC->TrackPid() == 50000050 || gMC->TrackPid() == 50000051) {
1547 //printf("Cerenkov\n");
1548 if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy))
1549 {
1550
1551 if (gMC->Edep() > 0.){
1552 gMC->TrackPosition(position);
1553 gMC->TrackMomentum(momentum);
1554 pos[0]=position(0);
1555 pos[1]=position(1);
1556 pos[2]=position(2);
1557 mom[0]=momentum(0);
1558 mom[1]=momentum(1);
1559 mom[2]=momentum(2);
1560 mom[3]=momentum(3);
1561 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1562 Double_t rt = TMath::Sqrt(tc);
1563 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1564 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1565 gMC->Gmtod(pos,localPos,1);
1566 gMC->Gmtod(mom,localMom,2);
1567
1568 gMC->CurrentVolOffID(2,copy);
1569 vol[0]=copy;
1570 idvol=vol[0]-1;
1571
1572 //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
1573 //->Sector(localPos[0], localPos[2]);
1574 //printf("Sector:%d\n",sector);
1575
1576 /*if (gMC->TrackPid() == 50000051){
1577 fFeedbacks++;
1578 printf("Feedbacks:%d\n",fFeedbacks);
1579 }*/
1580
1581 ((AliRICHChamber*) (*fChambers)[idvol])
1582 ->SigGenInit(localPos[0], localPos[2], localPos[1]);
1583 if(idvol<kNCH) {
1584 ckovData[0] = gMC->TrackPid(); // particle type
1585 ckovData[1] = pos[0]; // X-position for hit
1586 ckovData[2] = pos[1]; // Y-position for hit
1587 ckovData[3] = pos[2]; // Z-position for hit
1588 ckovData[4] = theta; // theta angle of incidence
1589 ckovData[5] = phi; // phi angle of incidence
1590 ckovData[8] = (Float_t) fNPadHits; // first padhit
1591 ckovData[9] = -1; // last pad hit
1592 ckovData[13] = 4; // photon was detected
1593 ckovData[14] = mom[0];
1594 ckovData[15] = mom[1];
1595 ckovData[16] = mom[2];
1596
1597 destep = gMC->Edep();
1598 gMC->SetMaxStep(kBig);
1599 cherenkovLoss += destep;
1600 ckovData[7]=cherenkovLoss;
1601
1602 nPads = MakePadHits(localPos[0],localPos[2],cherenkovLoss,idvol,kCerenkov);
1603 if (fNPadHits > (Int_t)ckovData[8]) {
1604 ckovData[8]= ckovData[8]+1;
1605 ckovData[9]= (Float_t) fNPadHits;
1606 }
1607
1608 ckovData[17] = nPads;
1609 //printf("nPads:%d",nPads);
1610
1611 //TClonesArray *Hits = RICH->Hits();
1612 AliRICHHit *mipHit = (AliRICHHit*) (fHits->UncheckedAt(0));
1613 if (mipHit)
1614 {
1615 mom[0] = current->Px();
1616 mom[1] = current->Py();
1617 mom[2] = current->Pz();
1618 Float_t mipPx = mipHit->fMomX;
1619 Float_t mipPy = mipHit->fMomY;
1620 Float_t mipPz = mipHit->fMomZ;
1621
1622 Float_t r = mom[0]*mom[0] + mom[1]*mom[1] + mom[2]*mom[2];
1623 Float_t rt = TMath::Sqrt(r);
1624 Float_t mipR = mipPx*mipPx + mipPy*mipPy + mipPz*mipPz;
1625 Float_t mipRt = TMath::Sqrt(mipR);
1626 if ((rt*mipRt) > 0)
1627 {
1628 coscerenkov = (mom[0]*mipPx + mom[1]*mipPy + mom[2]*mipPz)/(rt*mipRt);
1629 }
1630 else
1631 {
1632 coscerenkov = 0;
1633 }
1634 Float_t cherenkov = TMath::ACos(coscerenkov);
1635 ckovData[18]=cherenkov;
1636 }
1637 //if (sector != -1)
1638 //{
1639 AddHit(gAlice->CurrentTrack(),vol,ckovData);
1640 AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
1641 //}
1642 }
1643 }
1644 }
1645 }
1646
1647 /***********************************************End of photon hits*********************************************/
1648
1649
1650 /**********************************************Charged particles treatment*************************************/
1651
1652 else if (gMC->TrackCharge())
1653 //else if (1 == 1)
1654 {
1655//If MIP
1656 /*if (gMC->IsTrackEntering())
1657 {
1658 hits[13]=20;//is track entering?
1659 }*/
1660 if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
1661 {
1662 fFreonProd=1;
1663 }
1664
1665 if (gMC->VolId("GAP ")== gMC->CurrentVolID(copy)) {
1666// Get current particle id (ipart), track position (pos) and momentum (mom)
1667
1668 gMC->CurrentVolOffID(3,copy);
1669 vol[0]=copy;
1670 idvol=vol[0]-1;
1671
1672 //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
1673 //->Sector(localPos[0], localPos[2]);
1674 //printf("Sector:%d\n",sector);
1675
1676 gMC->TrackPosition(position);
1677 gMC->TrackMomentum(momentum);
1678 pos[0]=position(0);
1679 pos[1]=position(1);
1680 pos[2]=position(2);
1681 mom[0]=momentum(0);
1682 mom[1]=momentum(1);
1683 mom[2]=momentum(2);
1684 mom[3]=momentum(3);
1685 gMC->Gmtod(pos,localPos,1);
1686 gMC->Gmtod(mom,localMom,2);
1687
1688 ipart = gMC->TrackPid();
1689 //
1690 // momentum loss and steplength in last step
1691 destep = gMC->Edep();
1692 step = gMC->TrackStep();
1693
1694 //
1695 // record hits when track enters ...
1696 if( gMC->IsTrackEntering()) {
1697// gMC->SetMaxStep(fMaxStepGas);
1698 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
1699 Double_t rt = TMath::Sqrt(tc);
1700 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
1701 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
1702
1703
1704 Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2];
1705 Double_t localRt = TMath::Sqrt(localTc);
1706 localTheta = Float_t(TMath::ATan2(localRt,Double_t(localMom[1])))*kRaddeg;
1707 localPhi = Float_t(TMath::ATan2(Double_t(localMom[2]),Double_t(localMom[0])))*kRaddeg;
1708
1709 hits[0] = Float_t(ipart); // particle type
1710 hits[1] = localPos[0]; // X-position for hit
1711 hits[2] = localPos[1]; // Y-position for hit
1712 hits[3] = localPos[2]; // Z-position for hit
1713 hits[4] = localTheta; // theta angle of incidence
1714 hits[5] = localPhi; // phi angle of incidence
1715 hits[8] = (Float_t) fNPadHits; // first padhit
1716 hits[9] = -1; // last pad hit
1717 hits[13] = fFreonProd; // did id hit the freon?
1718 hits[14] = mom[0];
1719 hits[15] = mom[1];
1720 hits[16] = mom[2];
1721
1722 tlength = 0;
1723 eloss = 0;
1724 fFreonProd = 0;
1725
1726 Chamber(idvol).LocaltoGlobal(localPos,hits+1);
1727
1728
1729 //To make chamber coordinates x-y had to pass localPos[0], localPos[2]
1730 xhit = localPos[0];
1731 yhit = localPos[2];
1732 // Only if not trigger chamber
1733 if(idvol<kNCH) {
1734 //
1735 // Initialize hit position (cursor) in the segmentation model
1736 ((AliRICHChamber*) (*fChambers)[idvol])
1737 ->SigGenInit(localPos[0], localPos[2], localPos[1]);
1738 }
1739 }
1740
1741 //
1742 // Calculate the charge induced on a pad (disintegration) in case
1743 //
1744 // Mip left chamber ...
1745 if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
1746 gMC->SetMaxStep(kBig);
1747 eloss += destep;
1748 tlength += step;
1749
1750
1751 // Only if not trigger chamber
1752 if(idvol<kNCH) {
1753 if (eloss > 0)
1754 {
1755 if(gMC->TrackPid() == kNeutron)
1756 printf("\n\n\n\n\n Neutron Making Pad Hit!!! \n\n\n\n");
1757 nPads = MakePadHits(xhit,yhit,eloss,idvol,kMip);
1758 hits[17] = nPads;
1759 //printf("nPads:%d",nPads);
1760 }
1761 }
1762
1763 hits[6]=tlength;
1764 hits[7]=eloss;
1765 if (fNPadHits > (Int_t)hits[8]) {
1766 hits[8]= hits[8]+1;
1767 hits[9]= (Float_t) fNPadHits;
1768 }
1769
1770 //if(sector !=-1)
1771 new(lhits[fNhits++]) AliRICHHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1772 eloss = 0;
1773 //
1774 // Check additional signal generation conditions
1775 // defined by the segmentation
1776 // model (boundary crossing conditions)
1777 } else if
1778 (((AliRICHChamber*) (*fChambers)[idvol])
1779 ->SigGenCond(localPos[0], localPos[2], localPos[1]))
1780 {
1781 ((AliRICHChamber*) (*fChambers)[idvol])
1782 ->SigGenInit(localPos[0], localPos[2], localPos[1]);
1783 if (eloss > 0)
1784 {
1785 if(gMC->TrackPid() == kNeutron)
1786 printf("\n\n\n\n\n Neutron Making Pad Hit!!! \n\n\n\n");
1787 nPads = MakePadHits(xhit,yhit,eloss,idvol,kMip);
1788 hits[17] = nPads;
1789 //printf("Npads:%d",NPads);
1790 }
1791 xhit = localPos[0];
1792 yhit = localPos[2];
1793 eloss = destep;
1794 tlength += step ;
1795 //
1796 // nothing special happened, add up energy loss
1797 } else {
1798 eloss += destep;
1799 tlength += step ;
1800 }
1801 }
1802 }
1803 /*************************************************End of MIP treatment**************************************/
1804 //}
ddae0931 1805}
2e5f0f7b 1806
237c933d 1807void AliRICH::FindClusters(Int_t nev,Int_t lastEntry)
ddae0931 1808{
2e5f0f7b 1809
ddae0931 1810//
1811// Loop on chambers and on cathode planes
1812//
2e5f0f7b 1813 for (Int_t icat=1;icat<2;icat++) {
1814 gAlice->ResetDigits();
1815 gAlice->TreeD()->GetEvent(1); // spurious +1 ...
237c933d 1816 for (Int_t ich=0;ich<kNCH;ich++) {
2e5f0f7b 1817 AliRICHChamber* iChamber=(AliRICHChamber*) (*fChambers)[ich];
237c933d 1818 TClonesArray *pRICHdigits = this->DigitsAddress(ich);
1819 if (pRICHdigits == 0)
2e5f0f7b 1820 continue;
1821 //
1822 // Get ready the current chamber stuff
1823 //
1824 AliRICHResponse* response = iChamber->GetResponseModel();
1825 AliRICHSegmentation* seg = iChamber->GetSegmentationModel();
1826 AliRICHClusterFinder* rec = iChamber->GetReconstructionModel();
1827 if (seg) {
1828 rec->SetSegmentation(seg);
1829 rec->SetResponse(response);
237c933d 1830 rec->SetDigits(pRICHdigits);
2e5f0f7b 1831 rec->SetChamber(ich);
1832 if (nev==0) rec->CalibrateCOG();
1833 rec->FindRawClusters();
1834 }
1835 TClonesArray *fRch;
1836 fRch=RawClustAddress(ich);
1837 fRch->Sort();
1838 } // for ich
1839
1840 gAlice->TreeR()->Fill();
1841 TClonesArray *fRch;
237c933d 1842 for (int i=0;i<kNCH;i++) {
2e5f0f7b 1843 fRch=RawClustAddress(i);
1844 int nraw=fRch->GetEntriesFast();
1845 printf ("Chamber %d, raw clusters %d\n",i,nraw);
1846 }
1847
1848 ResetRawClusters();
1849
1850 } // for icat
1851
1852 char hname[30];
1853 sprintf(hname,"TreeR%d",nev);
33984590 1854 gAlice->TreeR()->Write(hname,kOverwrite,0);
2e5f0f7b 1855 gAlice->TreeR()->Reset();
1856
1857 //gObjectTable->Print();
ddae0931 1858}
1859
1860
1861//______________________________________________________________________________
1862void AliRICH::Streamer(TBuffer &R__b)
1863{
1864 // Stream an object of class AliRICH.
2e5f0f7b 1865 AliRICHChamber *iChamber;
1866 AliRICHSegmentation *segmentation;
1867 AliRICHResponse *response;
ddae0931 1868 TClonesArray *digitsaddress;
2e5f0f7b 1869 TClonesArray *rawcladdress;
1870 TClonesArray *rechitaddress;
ddae0931 1871
1872 if (R__b.IsReading()) {
1873 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
1874 AliDetector::Streamer(R__b);
2e5f0f7b 1875 R__b >> fNPadHits;
1876 R__b >> fPadHits; // diff
1877 R__b >> fNcerenkovs;
1878 R__b >> fCerenkovs; // diff
ddae0931 1879 R__b >> fDchambers;
2e5f0f7b 1880 R__b >> fRawClusters;
33984590 1881 R__b >> fRecHits; //diff
1882 R__b >> fDebugLevel; //diff
ddae0931 1883 R__b.ReadArray(fNdch);
2e5f0f7b 1884 R__b.ReadArray(fNrawch);
1885 R__b.ReadArray(fNrechits);
1886//
ddae0931 1887 R__b >> fChambers;
1888// Stream chamber related information
237c933d 1889 for (Int_t i =0; i<kNCH; i++) {
2e5f0f7b 1890 iChamber=(AliRICHChamber*) (*fChambers)[i];
ddae0931 1891 iChamber->Streamer(R__b);
2e5f0f7b 1892 segmentation=iChamber->GetSegmentationModel();
1893 segmentation->Streamer(R__b);
1894 response=iChamber->GetResponseModel();
ddae0931 1895 response->Streamer(R__b);
2e5f0f7b 1896 rawcladdress=(TClonesArray*) (*fRawClusters)[i];
1897 rawcladdress->Streamer(R__b);
1898 rechitaddress=(TClonesArray*) (*fRecHits)[i];
1899 rechitaddress->Streamer(R__b);
ddae0931 1900 digitsaddress=(TClonesArray*) (*fDchambers)[i];
1901 digitsaddress->Streamer(R__b);
1902 }
452a64c6 1903 R__b >> fDebugLevel;
1904 R__b >> fCkovNumber;
1905 R__b >> fCkovQuarz;
1906 R__b >> fCkovGap;
1907 R__b >> fCkovCsi;
1908 R__b >> fLostRfreo;
1909 R__b >> fLostRquar;
1910 R__b >> fLostAfreo;
1911 R__b >> fLostAquarz;
1912 R__b >> fLostAmeta;
1913 R__b >> fLostCsi;
1914 R__b >> fLostWires;
1915 R__b >> fFreonProd;
1916 R__b >> fMipx;
1917 R__b >> fMipy;
1918 R__b >> fFeedbacks;
1919 R__b >> fLostFresnel;
ddae0931 1920
1921 } else {
1922 R__b.WriteVersion(AliRICH::IsA());
1923 AliDetector::Streamer(R__b);
2e5f0f7b 1924 R__b << fNPadHits;
1925 R__b << fPadHits; // diff
1926 R__b << fNcerenkovs;
1927 R__b << fCerenkovs; // diff
ddae0931 1928 R__b << fDchambers;
2e5f0f7b 1929 R__b << fRawClusters;
1930 R__b << fRecHits; //diff
33984590 1931 R__b << fDebugLevel; //diff
237c933d 1932 R__b.WriteArray(fNdch, kNCH);
1933 R__b.WriteArray(fNrawch, kNCH);
1934 R__b.WriteArray(fNrechits, kNCH);
ddae0931 1935 //
ddae0931 1936 R__b << fChambers;
1937// Stream chamber related information
237c933d 1938 for (Int_t i =0; i<kNCH; i++) {
2e5f0f7b 1939 iChamber=(AliRICHChamber*) (*fChambers)[i];
ddae0931 1940 iChamber->Streamer(R__b);
2e5f0f7b 1941 segmentation=iChamber->GetSegmentationModel();
1942 segmentation->Streamer(R__b);
1943 response=iChamber->GetResponseModel();
ddae0931 1944 response->Streamer(R__b);
2e5f0f7b 1945 rawcladdress=(TClonesArray*) (*fRawClusters)[i];
1946 rawcladdress->Streamer(R__b);
1947 rechitaddress=(TClonesArray*) (*fRecHits)[i];
1948 rechitaddress->Streamer(R__b);
ddae0931 1949 digitsaddress=(TClonesArray*) (*fDchambers)[i];
1950 digitsaddress->Streamer(R__b);
1951 }
452a64c6 1952 R__b << fDebugLevel;
1953 R__b << fCkovNumber;
1954 R__b << fCkovQuarz;
1955 R__b << fCkovGap;
1956 R__b << fCkovCsi;
1957 R__b << fLostRfreo;
1958 R__b << fLostRquar;
1959 R__b << fLostAfreo;
1960 R__b << fLostAquarz;
1961 R__b << fLostAmeta;
1962 R__b << fLostCsi;
1963 R__b << fLostWires;
1964 R__b << fFreonProd;
1965 R__b << fMipx;
1966 R__b << fMipy;
1967 R__b << fFeedbacks;
1968 R__b << fLostFresnel;
fe4da5cc 1969 }
ddae0931 1970}
2e5f0f7b 1971AliRICHPadHit* AliRICH::FirstPad(AliRICHHit* hit,TClonesArray *clusters )
ddae0931 1972{
1973//
1974 // Initialise the pad iterator
1975 // Return the address of the first padhit for hit
1976 TClonesArray *theClusters = clusters;
1977 Int_t nclust = theClusters->GetEntriesFast();
1978 if (nclust && hit->fPHlast > 0) {
2e5f0f7b 1979 sMaxIterPad=Int_t(hit->fPHlast);
1980 sCurIterPad=Int_t(hit->fPHfirst);
1981 return (AliRICHPadHit*) clusters->UncheckedAt(sCurIterPad-1);
ddae0931 1982 } else {
1983 return 0;
fe4da5cc 1984 }
ddae0931 1985
fe4da5cc 1986}
1987
2e5f0f7b 1988AliRICHPadHit* AliRICH::NextPad(TClonesArray *clusters)
fe4da5cc 1989{
237c933d 1990
1991 // Iterates over pads
1992
ddae0931 1993 sCurIterPad++;
1994 if (sCurIterPad <= sMaxIterPad) {
2e5f0f7b 1995 return (AliRICHPadHit*) clusters->UncheckedAt(sCurIterPad-1);
ddae0931 1996 } else {
1997 return 0;
1998 }
fe4da5cc 1999}
2000
fe4da5cc 2001
d28b5fc2 2002void AliRICH::Digitise(Int_t nev, Int_t flag, Option_t *option,Text_t *filename)
fe4da5cc 2003{
ddae0931 2004 // keep galice.root for signal and name differently the file for
2005 // background when add! otherwise the track info for signal will be lost !
2e5f0f7b 2006
c90dd3e2 2007 static Bool_t first=kTRUE;
237c933d 2008 static TFile *pFile;
2009 char *addBackground = strstr(option,"Add");
ddae0931 2010
2e5f0f7b 2011 FILE* points; //these will be the digits...
2012
2013 points=fopen("points.dat","w");
2014
2015 AliRICHChamber* iChamber;
2016 AliRICHSegmentation* segmentation;
ddae0931 2017
d28b5fc2 2018 Int_t digitse=0;
ddae0931 2019 Int_t trk[50];
2020 Int_t chtrk[50];
2021 TObjArray *list=new TObjArray;
237c933d 2022 static TClonesArray *pAddress=0;
2023 if(!pAddress) pAddress=new TClonesArray("TVector",1000);
2e5f0f7b 2024 Int_t digits[5];
ddae0931 2025
237c933d 2026 AliRICH *pRICH = (AliRICH *) gAlice->GetDetector("RICH");
2027 AliRICHHitMap* pHitMap[10];
2e5f0f7b 2028 Int_t i;
237c933d 2029 for (i=0; i<10; i++) {pHitMap[i]=0;}
2030 if (addBackground ) {
ddae0931 2031 if(first) {
2032 fFileName=filename;
2033 cout<<"filename"<<fFileName<<endl;
237c933d 2034 pFile=new TFile(fFileName);
ddae0931 2035 cout<<"I have opened "<<fFileName<<" file "<<endl;
2e5f0f7b 2036 fHits2 = new TClonesArray("AliRICHHit",1000 );
2037 fClusters2 = new TClonesArray("AliRICHPadHit",10000);
c90dd3e2 2038 first=kFALSE;
ddae0931 2039 }
237c933d 2040 pFile->cd();
ddae0931 2041 // Get Hits Tree header from file
2042 if(fHits2) fHits2->Clear();
2043 if(fClusters2) fClusters2->Clear();
2e5f0f7b 2044 if(TrH1) delete TrH1;
2045 TrH1=0;
2046
ddae0931 2047 char treeName[20];
2048 sprintf(treeName,"TreeH%d",nev);
2e5f0f7b 2049 TrH1 = (TTree*)gDirectory->Get(treeName);
2050 if (!TrH1) {
ddae0931 2051 printf("ERROR: cannot find Hits Tree for event:%d\n",nev);
2052 }
2053 // Set branch addresses
2054 TBranch *branch;
2055 char branchname[20];
2056 sprintf(branchname,"%s",GetName());
2e5f0f7b 2057 if (TrH1 && fHits2) {
2058 branch = TrH1->GetBranch(branchname);
ddae0931 2059 if (branch) branch->SetAddress(&fHits2);
2060 }
2e5f0f7b 2061 if (TrH1 && fClusters2) {
2062 branch = TrH1->GetBranch("RICHCluster");
ddae0931 2063 if (branch) branch->SetAddress(&fClusters2);
2064 }
2065 }
33984590 2066
ddae0931 2067 AliRICHHitMap* hm;
2e5f0f7b 2068 Int_t countadr=0;
33984590 2069 Int_t counter=0;
2070 for (i =0; i<kNCH; i++) {
2071 iChamber=(AliRICHChamber*) (*fChambers)[i];
2072 segmentation=iChamber->GetSegmentationModel(1);
2073 pHitMap[i] = new AliRICHHitMapA1(segmentation, list);
2074 }
2075 //
2076 // Loop over tracks
2077 //
2078
2079 TTree *treeH = gAlice->TreeH();
2080 Int_t ntracks =(Int_t) treeH->GetEntries();
2081 for (Int_t track=0; track<ntracks; track++) {
2082 gAlice->ResetHits();
2083 treeH->GetEvent(track);
2084 //
2085 // Loop over hits
2086 for(AliRICHHit* mHit=(AliRICHHit*)pRICH->FirstHit(-1);
2087 mHit;
2088 mHit=(AliRICHHit*)pRICH->NextHit())
2089 {
2090
2091 digitse=0;
2092
2093 Int_t nch = mHit->fChamber-1; // chamber number
2094 if (nch >kNCH) continue;
2095 iChamber = &(pRICH->Chamber(nch));
2096
2097 TParticle *current = (TParticle*)(*gAlice->Particles())[track];
2098
2099 Int_t particle = current->GetPdgCode();
2100
2101 //printf("Flag:%d\n",flag);
2102 //printf("Track:%d\n",track);
2103 //printf("Particle:%d\n",particle);
2104
2105 if (flag == 0)
2106 digitse=1;
2107
2108 if (flag == 1)
2109 if(TMath::Abs(particle) == 211 || TMath::Abs(particle) == 111)
2110 digitse=1;
2111
2112 if (flag == 2)
2113 if(TMath::Abs(particle)==321 || TMath::Abs(particle)==130 || TMath::Abs(particle)==310
2114 || TMath::Abs(particle)==311)
2115 digitse=1;
2116
2117 if (flag == 3 && TMath::Abs(particle)==2212)
2118 digitse=1;
2119
2120 if (flag == 4 && TMath::Abs(particle)==13)
2121 digitse=1;
2122
2123 if (flag == 5 && TMath::Abs(particle)==11)
2124 digitse=1;
2125
2126 if (flag == 6 && TMath::Abs(particle)==2112)
2127 digitse=1;
2128
2129
2130 //printf ("Particle: %d, Flag: %d, Digitse: %d\n",particle,flag,digitse);
2131
2132
2133 if (digitse)
ddae0931 2134 {
d28b5fc2 2135
33984590 2136 //
2137 // Loop over pad hits
2138 for (AliRICHPadHit* mPad=
2139 (AliRICHPadHit*)pRICH->FirstPad(mHit,fPadHits);
2140 mPad;
2141 mPad=(AliRICHPadHit*)pRICH->NextPad(fPadHits))
d28b5fc2 2142 {
33984590 2143 Int_t cathode = mPad->fCathode; // cathode number
2144 Int_t ipx = mPad->fPadX; // pad number on X
2145 Int_t ipy = mPad->fPadY; // pad number on Y
2146 Int_t iqpad = mPad->fQpad; // charge per pad
2147 //
2148 //
2149 //printf("X:%d, Y:%d, Q:%d\n",ipx,ipy,iqpad);
2150
2151 Float_t thex, they;
2152 segmentation=iChamber->GetSegmentationModel(cathode);
2153 segmentation->GetPadCxy(ipx,ipy,thex,they);
2154 new((*pAddress)[countadr++]) TVector(2);
2155 TVector &trinfo=*((TVector*) (*pAddress)[countadr-1]);
2156 trinfo(0)=(Float_t)track;
2157 trinfo(1)=(Float_t)iqpad;
2158
2159 digits[0]=ipx;
2160 digits[1]=ipy;
2161 digits[2]=iqpad;
2162
2163 AliRICHTransientDigit* pdigit;
2164 // build the list of fired pads and update the info
2165 if (!pHitMap[nch]->TestHit(ipx, ipy)) {
2166 list->AddAtAndExpand(new AliRICHTransientDigit(nch,digits),counter);
2167 pHitMap[nch]->SetHit(ipx, ipy, counter);
2168 counter++;
2169 pdigit=(AliRICHTransientDigit*)list->At(list->GetLast());
2170 // list of tracks
2171 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
2172 trlist->Add(&trinfo);
2173 } else {
2174 pdigit=(AliRICHTransientDigit*) pHitMap[nch]->GetHit(ipx, ipy);
2175 // update charge
2176 (*pdigit).fSignal+=iqpad;
2177 // update list of tracks
2178 TObjArray* trlist=(TObjArray*)pdigit->TrackList();
2179 Int_t lastEntry=trlist->GetLast();
2180 TVector *ptrkP=(TVector*)trlist->At(lastEntry);
2181 TVector &ptrk=*ptrkP;
2182 Int_t lastTrack=Int_t(ptrk(0));
2183 Int_t lastCharge=Int_t(ptrk(1));
2184 if (lastTrack==track) {
2185 lastCharge+=iqpad;
2186 trlist->RemoveAt(lastEntry);
2187 trinfo(0)=lastTrack;
2188 trinfo(1)=lastCharge;
2189 trlist->AddAt(&trinfo,lastEntry);
2190 } else {
2191 trlist->Add(&trinfo);
2192 }
2193 // check the track list
2194 Int_t nptracks=trlist->GetEntriesFast();
2195 if (nptracks > 2) {
2196 printf("Attention - tracks: %d (>2)\n",nptracks);
2197 //printf("cat,nch,ix,iy %d %d %d %d \n",icat+1,nch,ipx,ipy);
2198 for (Int_t tr=0;tr<nptracks;tr++) {
2199 TVector *pptrkP=(TVector*)trlist->At(tr);
2200 TVector &pptrk=*pptrkP;
2201 trk[tr]=Int_t(pptrk(0));
2202 chtrk[tr]=Int_t(pptrk(1));
2203 }
2204 } // end if nptracks
2205 } // end if pdigit
2206 } //end loop over clusters
2207 }// track type condition
2208 } // hit loop
2209 } // track loop
2210
2211 // open the file with background
2212
2213 if (addBackground ) {
2214 ntracks =(Int_t)TrH1->GetEntries();
2215 //printf("background - icat,ntracks1 %d %d\n",icat,ntracks);
2216 //printf("background - Start loop over tracks \n");
2217 //
2218 // Loop over tracks
2219 //
2220 for (Int_t trak=0; trak<ntracks; trak++) {
2221 if (fHits2) fHits2->Clear();
2222 if (fClusters2) fClusters2->Clear();
2223 TrH1->GetEvent(trak);
2224 //
2225 // Loop over hits
2226 AliRICHHit* mHit;
2227 for(int j=0;j<fHits2->GetEntriesFast();++j)
2228 {
2229 mHit=(AliRICHHit*) (*fHits2)[j];
2230 Int_t nch = mHit->fChamber-1; // chamber number
2231 if (nch >6) continue;
2232 iChamber = &(pRICH->Chamber(nch));
2233 Int_t rmin = (Int_t)iChamber->RInner();
2234 Int_t rmax = (Int_t)iChamber->ROuter();
2235 //
2236 // Loop over pad hits
2237 for (AliRICHPadHit* mPad=
2238 (AliRICHPadHit*)pRICH->FirstPad(mHit,fClusters2);
2239 mPad;
2240 mPad=(AliRICHPadHit*)pRICH->NextPad(fClusters2))
2241 {
2242 Int_t cathode = mPad->fCathode; // cathode number
2243 Int_t ipx = mPad->fPadX; // pad number on X
2244 Int_t ipy = mPad->fPadY; // pad number on Y
2245 Int_t iqpad = mPad->fQpad; // charge per pad
2e5f0f7b 2246
33984590 2247 Float_t thex, they;
2248 segmentation=iChamber->GetSegmentationModel(cathode);
2249 segmentation->GetPadCxy(ipx,ipy,thex,they);
2250 Float_t rpad=TMath::Sqrt(thex*thex+they*they);
2251 if (rpad < rmin || iqpad ==0 || rpad > rmax) continue;
2252 new((*pAddress)[countadr++]) TVector(2);
2253 TVector &trinfo=*((TVector*) (*pAddress)[countadr-1]);
2254 trinfo(0)=-1; // tag background
2255 trinfo(1)=-1;
2256 digits[0]=ipx;
2257 digits[1]=ipy;
2258 digits[2]=iqpad;
2259 if (trak <4 && nch==0)
2260 printf("bgr - pHitMap[nch]->TestHit(ipx, ipy),trak %d %d\n",
2261 pHitMap[nch]->TestHit(ipx, ipy),trak);
2262 AliRICHTransientDigit* pdigit;
2263 // build the list of fired pads and update the info
2264 if (!pHitMap[nch]->TestHit(ipx, ipy)) {
2265 list->AddAtAndExpand(new AliRICHTransientDigit(nch,digits),counter);
2266
2267 pHitMap[nch]->SetHit(ipx, ipy, counter);
2268 counter++;
2269 printf("bgr new elem in list - counter %d\n",counter);
2270
2271 pdigit=(AliRICHTransientDigit*)list->At(list->GetLast());
2272 // list of tracks
2273 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
2274 trlist->Add(&trinfo);
2275 } else {
2276 pdigit=(AliRICHTransientDigit*) pHitMap[nch]->GetHit(ipx, ipy);
2277 // update charge
2278 (*pdigit).fSignal+=iqpad;
2279 // update list of tracks
2280 TObjArray* trlist=(TObjArray*)pdigit->TrackList();
2281 Int_t lastEntry=trlist->GetLast();
2282 TVector *ptrkP=(TVector*)trlist->At(lastEntry);
2283 TVector &ptrk=*ptrkP;
2284 Int_t lastTrack=Int_t(ptrk(0));
2285 if (lastTrack==-1) {
2286 continue;
2287 } else {
2288 trlist->Add(&trinfo);
2289 }
2290 // check the track list
2291 Int_t nptracks=trlist->GetEntriesFast();
2292 if (nptracks > 0) {
2293 for (Int_t tr=0;tr<nptracks;tr++) {
2294 TVector *pptrkP=(TVector*)trlist->At(tr);
2295 TVector &pptrk=*pptrkP;
2296 trk[tr]=Int_t(pptrk(0));
2297 chtrk[tr]=Int_t(pptrk(1));
2298 }
2299 } // end if nptracks
2300 } // end if pdigit
2301 } //end loop over clusters
2302 } // hit loop
2303 } // track loop
ddae0931 2304 TTree *fAli=gAlice->TreeK();
237c933d 2305 if (fAli) pFile =fAli->GetCurrentFile();
2306 pFile->cd();
33984590 2307 } // if Add
2308
2309 Int_t tracks[10];
2310 Int_t charges[10];
2311 //cout<<"Start filling digits \n "<<endl;
2312 Int_t nentries=list->GetEntriesFast();
2313 //printf(" \n \n nentries %d \n",nentries);
2314
2315 // start filling the digits
2316
2317 for (Int_t nent=0;nent<nentries;nent++) {
2318 AliRICHTransientDigit *address=(AliRICHTransientDigit*)list->At(nent);
2319 if (address==0) continue;
2320
2321 Int_t ich=address->fChamber;
2322 Int_t q=address->fSignal;
2323 iChamber=(AliRICHChamber*) (*fChambers)[ich];
2324 AliRICHResponse * response=iChamber->GetResponseModel();
2325 Int_t adcmax= (Int_t) response->MaxAdc();
2326
2327
2328 // add white noise and do zero-suppression and signal truncation (new electronics,old electronics gaus 1.2,0.2)
2329 //printf("Treshold: %d\n",iChamber->fTresh->GetHitIndex(address->fPadX,address->fPadY));
2330 Int_t pedestal = iChamber->fTresh->GetHitIndex(address->fPadX,address->fPadY);
ddae0931 2331
33984590 2332 //printf("Pedestal:%d\n",pedestal);
2333 //Int_t pedestal=0;
2334 Float_t treshold = (pedestal + 4*1.7);
2335
2336 Float_t meanNoise = gRandom->Gaus(1.7, 0.25);
2337 Float_t noise = gRandom->Gaus(0, meanNoise);
2338 q+=(Int_t)(noise + pedestal);
2339 //q+=(Int_t)(noise);
2340 // magic number to be parametrised !!!
2341 if ( q <= treshold)
2342 {
2343 q = q - pedestal;
2344 continue;
2e5f0f7b 2345 }
33984590 2346 q = q - pedestal;
2347 if ( q >= adcmax) q=adcmax;
2348 digits[0]=address->fPadX;
2349 digits[1]=address->fPadY;
2350 digits[2]=q;
2351
2352 TObjArray* trlist=(TObjArray*)address->TrackList();
2353 Int_t nptracks=trlist->GetEntriesFast();
2354
2355 // this was changed to accomodate the real number of tracks
2356 if (nptracks > 10) {
2357 cout<<"Attention - tracks > 10 "<<nptracks<<endl;
2358 nptracks=10;
2359 }
2360 if (nptracks > 2) {
2361 printf("Attention - tracks > 2 %d \n",nptracks);
2362 //printf("cat,ich,ix,iy,q %d %d %d %d %d \n",
2363 //icat,ich,digits[0],digits[1],q);
2364 }
2365 for (Int_t tr=0;tr<nptracks;tr++) {
2366 TVector *ppP=(TVector*)trlist->At(tr);
2367 TVector &pp =*ppP;
2368 tracks[tr]=Int_t(pp(0));
2369 charges[tr]=Int_t(pp(1));
2370 } //end loop over list of tracks for one pad
2371 if (nptracks < 10 ) {
2372 for (Int_t t=nptracks; t<10; t++) {
2373 tracks[t]=0;
2374 charges[t]=0;
ddae0931 2375 }
33984590 2376 }
2377 //write file
2378 if (ich==2)
2379 fprintf(points,"%4d, %4d, %4d\n",digits[0],digits[1],digits[2]);
2380
2381 // fill digits
2382 pRICH->AddDigits(ich,tracks,charges,digits);
2383 }
2384 gAlice->TreeD()->Fill();
2385
2386 list->Delete();
2387 for(Int_t ii=0;ii<kNCH;++ii) {
2388 if (pHitMap[ii]) {
2389 hm=pHitMap[ii];
2390 delete hm;
2391 pHitMap[ii]=0;
2392 }
2393 }
2394
2395 //TTree *TD=gAlice->TreeD();
2396 //Stat_t ndig=TD->GetEntries();
2397 //cout<<"number of digits "<<ndig<<endl;
2398 TClonesArray *fDch;
2399 for (int k=0;k<kNCH;k++) {
2400 fDch= pRICH->DigitsAddress(k);
2401 int ndigit=fDch->GetEntriesFast();
2402 printf ("Chamber %d digits %d \n",k,ndigit);
2403 }
2404 pRICH->ResetDigits();
ddae0931 2405 char hname[30];
2406 sprintf(hname,"TreeD%d",nev);
33984590 2407 gAlice->TreeD()->Write(hname,kOverwrite,0);
2408
2409 // reset tree
2410 // gAlice->TreeD()->Reset();
2e5f0f7b 2411 delete list;
237c933d 2412 pAddress->Clear();
33984590 2413 // gObjectTable->Print();
2e5f0f7b 2414}
ddae0931 2415
237c933d 2416AliRICH& AliRICH::operator=(const AliRICH& rhs)
2417{
2418// Assignment operator
2419 return *this;
2420
2421}
ddae0931 2422
237c933d 2423Int_t AliRICH::MakePadHits(Float_t xhit,Float_t yhit,Float_t eloss, Int_t idvol, ResponseType res)
2424{
2425//
2426// Calls the charge disintegration method of the current chamber and adds
2427// the simulated cluster to the root treee
2428//
2429 Int_t clhits[kNCH];
2430 Float_t newclust[6][500];
2431 Int_t nnew;
2432
2433//
2434// Integrated pulse height on chamber
2435
2436 clhits[0]=fNhits+1;
2437
2438 ((AliRICHChamber*) (*fChambers)[idvol])->DisIntegration(eloss, xhit, yhit, nnew, newclust, res);
2439 Int_t ic=0;
2440
2441//
2442// Add new clusters
2443 for (Int_t i=0; i<nnew; i++) {
2444 if (Int_t(newclust[3][i]) > 0) {
2445 ic++;
2446// Cathode plane
2447 clhits[1] = Int_t(newclust[5][i]);
2448// Cluster Charge
2449 clhits[2] = Int_t(newclust[0][i]);
2450// Pad: ix
2451 clhits[3] = Int_t(newclust[1][i]);
2452// Pad: iy
2453 clhits[4] = Int_t(newclust[2][i]);
2454// Pad: charge
2455 clhits[5] = Int_t(newclust[3][i]);
2456// Pad: chamber sector
2457 clhits[6] = Int_t(newclust[4][i]);
2458
2459 AddPadHit(clhits);
2460 }
2461 }
2462return nnew;
2463}
ddae0931 2464