Retrieval of parameters from config file implemented
[u/mrichter/AliRoot.git] / TRD / AliTRD.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
88cb7938 16/* $Id$ */
4c039060 17
fe4da5cc 18///////////////////////////////////////////////////////////////////////////////
19// //
20// Transition Radiation Detector //
21// This class contains the basic functions for the Transition Radiation //
6f1e466d 22// Detector. //
fe4da5cc 23// //
24///////////////////////////////////////////////////////////////////////////////
25
5c7f4665 26#include <stdlib.h>
a2cb5b3d 27#include <Riostream.h>
5c7f4665 28
7ca4655f 29#include <TClonesArray.h>
88cb7938 30#include <TFile.h>
31#include <TGeometry.h>
32#include <TLorentzVector.h>
fe4da5cc 33#include <TMath.h>
fe4da5cc 34#include <TNode.h>
793ff80c 35#include <TPGON.h>
332e9569 36#include <TParticle.h>
88cb7938 37#include <TROOT.h>
38#include <TTree.h>
39#include <TVirtualMC.h>
40
d3f347ff 41#include "AliConst.h"
793ff80c 42#include "AliDigit.h"
88cb7938 43#include "AliLoader.h"
45160b1f 44#include "AliLog.h"
45#include "AliMC.h"
793ff80c 46#include "AliMagF.h"
88cb7938 47#include "AliRun.h"
030b4415 48#include "AliTrackReference.h"
68119ad1 49#include "AliRawReader.h"
030b4415 50
793ff80c 51#include "AliTRD.h"
793ff80c 52#include "AliTRDdigit.h"
851d3db9 53#include "AliTRDdigitizer.h"
88cb7938 54#include "AliTRDdigitsManager.h"
bd0f8685 55#include "AliTRDgeometry.h"
88cb7938 56#include "AliTRDhit.h"
57#include "AliTRDpoints.h"
b864d801 58#include "AliTRDrawData.h"
3551db50 59#include "AliTRDSimParam.h"
3551db50 60#include "AliTRDCommonParam.h"
61#include "AliTRDcalibDB.h"
62
fe4da5cc 63ClassImp(AliTRD)
64
65//_____________________________________________________________________________
66AliTRD::AliTRD()
030b4415 67 :AliDetector()
68 ,fGeometry(0)
69 ,fGasDensity(0)
70 ,fFoilDensity(0)
f2979d08 71 ,fGasNobleFraction(0)
030b4415 72 ,fDrawTR(0)
73 ,fDisplayType(0)
fe4da5cc 74{
75 //
76 // Default constructor
77 //
332e9569 78
fe4da5cc 79}
80
81//_____________________________________________________________________________
82AliTRD::AliTRD(const char *name, const char *title)
030b4415 83 :AliDetector(name,title)
84 ,fGeometry(0)
85 ,fGasDensity(0)
86 ,fFoilDensity(0)
87 ,fDrawTR(0)
88 ,fDisplayType(0)
fe4da5cc 89{
90 //
91 // Standard constructor for the TRD
92 //
93
030b4415 94 // Check that FRAME is there otherwise we have no place where to put TRD
95 AliModule *frame = gAlice->GetModule("FRAME");
8230f242 96 if (!frame) {
030b4415 97 AliError("TRD needs FRAME to be present\n");
5c7f4665 98 exit(1);
99 }
100
d37eec5e 101 // Define the TRD geometry
102 if ((frame->IsVersion() == 0) ||
103 (frame->IsVersion() == 1)) {
bd0f8685 104 fGeometry = new AliTRDgeometry();
851d3db9 105 }
106 else {
030b4415 107 AliError("Could not find valid FRAME version\n");
851d3db9 108 exit(1);
109 }
5c7f4665 110
fe4da5cc 111 // Allocate the hit array
030b4415 112 fHits = new TClonesArray("AliTRDhit",405);
5d12ce38 113 gAlice->GetMCApp()->AddHitList(fHits);
99d5402e 114
8230f242 115}
116
117//_____________________________________________________________________________
99d5402e 118AliTRD::~AliTRD()
119{
120 //
121 // TRD destructor
122 //
123
abaf1f1d 124 if (fGeometry) {
125 delete fGeometry;
030b4415 126 fGeometry = 0;
abaf1f1d 127 }
030b4415 128
abaf1f1d 129 if (fHits) {
130 delete fHits;
030b4415 131 fHits = 0;
abaf1f1d 132 }
bd0f8685 133
5c7f4665 134}
135
136//_____________________________________________________________________________
6244debe 137void AliTRD::Hits2Digits()
2ab0c725 138{
139 //
140 // Create digits
141 //
bd0f8685 142
be385a87 143 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
45160b1f 144 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
9a96f175 145
6244debe 146 // Initialization
be385a87 147 digitizer.InitDetector();
6244debe 148
030b4415 149 if (!fLoader->TreeH()) {
150 fLoader->LoadHits("read");
151 }
85a5290f 152 fLoader->LoadDigits("recreate");
95867fd1 153
030b4415 154 AliRunLoader *runLoader = fLoader->GetRunLoader();
6244debe 155
85a5290f 156 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
95867fd1 157 runLoader->GetEvent(iEvent);
158 digitizer.Open(runLoader,iEvent);
be385a87 159 digitizer.MakeDigits();
160 digitizer.WriteDigits();
6244debe 161 }
162
85a5290f 163 fLoader->UnloadHits();
164 fLoader->UnloadDigits();
a328fff9 165
6244debe 166}
167
168//_____________________________________________________________________________
169void AliTRD::Hits2SDigits()
170{
171 //
172 // Create summable digits
173 //
a328fff9 174
be385a87 175 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
6244debe 176 // For the summable digits
be385a87 177 digitizer.SetSDigits(kTRUE);
45160b1f 178 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
6244debe 179
180 // Initialization
be385a87 181 digitizer.InitDetector();
2ab0c725 182
030b4415 183 if (!fLoader->TreeH()) {
184 fLoader->LoadHits("read");
185 }
85a5290f 186 fLoader->LoadSDigits("recreate");
95867fd1 187
188 AliRunLoader *runLoader = fLoader->GetRunLoader();
6244debe 189
85a5290f 190 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
95867fd1 191 runLoader->GetEvent(iEvent);
192 digitizer.Open(runLoader,iEvent);
be385a87 193 digitizer.MakeDigits();
194 digitizer.WriteDigits();
85a5290f 195 }
2ab0c725 196
85a5290f 197 fLoader->UnloadHits();
198 fLoader->UnloadSDigits();
a328fff9 199
200}
6244debe 201
85a5290f 202//_____________________________________________________________________________
95867fd1 203AliDigitizer *AliTRD::CreateDigitizer(AliRunDigitizer *manager) const
85a5290f 204{
a328fff9 205 //
206 // Creates a new digitizer object
207 //
208
85a5290f 209 return new AliTRDdigitizer(manager);
a328fff9 210
6244debe 211}
212
213//_____________________________________________________________________________
214void AliTRD::SDigits2Digits()
215{
216 //
217 // Create final digits from summable digits
218 //
219
bd0f8685 220 // Create the TRD digitizer
be385a87 221 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
45160b1f 222 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
99d5402e 223
abaf1f1d 224 // Set the parameter
be385a87 225 digitizer.SetEvent(gAlice->GetEvNumber());
abaf1f1d 226
227 // Initialization
be385a87 228 digitizer.InitDetector();
abaf1f1d 229
230 // Read the s-digits via digits manager
be385a87 231 AliTRDdigitsManager sdigitsManager;
88cb7938 232
45160b1f 233 AliLog::SetClassDebugLevel("TRDdigitisManager",AliDebugLevel());
be385a87 234 sdigitsManager.SetSDigits(kTRUE);
235 sdigitsManager.CreateArrays();
88cb7938 236
030b4415 237 if (!fLoader->TreeS()) {
238 if (fLoader->LoadSDigits("read")) {
239 return;
240 }
241 }
242 if (!fLoader->TreeS()) {
243 AliError(Form("Error while reading SDigits for event %d",gAlice->GetEvNumber()));
244 return;
245 }
88cb7938 246
be385a87 247 sdigitsManager.ReadDigits(fLoader->TreeS());
abaf1f1d 248
249 // Add the s-digits to the input list
be385a87 250 digitizer.AddSDigitsManager(&sdigitsManager);
99d5402e 251
abaf1f1d 252 // Convert the s-digits to normal digits
be385a87 253 digitizer.SDigits2Digits();
abaf1f1d 254
255 // Store the digits
030b4415 256 if (!fLoader->TreeD()) {
257 fLoader->MakeTree("D");
258 }
be385a87 259 if (digitizer.MakeBranch(fLoader->TreeD())){
260 digitizer.WriteDigits();
abaf1f1d 261 }
99d5402e 262
263}
264
fe4da5cc 265//_____________________________________________________________________________
b864d801 266void AliTRD::Digits2Raw()
267{
268 //
030b4415 269 // Convert digits of the current event to raw data
b864d801 270 //
271
272 fLoader->LoadDigits();
030b4415 273 TTree *digits = fLoader->TreeD();
b864d801 274 if (!digits) {
030b4415 275 AliError("No digits tree");
b864d801 276 return;
277 }
278
279 AliTRDrawData rawWriter;
b864d801 280 if (!rawWriter.Digits2Raw(digits)) {
030b4415 281 AliError("The raw writer could not load the digits tree");
b864d801 282 }
283
284 fLoader->UnloadDigits();
285
286}
287
288//_____________________________________________________________________________
332e9569 289void AliTRD::AddHit(Int_t track, Int_t det, Float_t *hits, Int_t q
2fa01832 290 , Float_t time, Bool_t inDrift)
fe4da5cc 291{
292 //
293 // Add a hit for the TRD
332e9569 294 //
82bbf98a 295
a328fff9 296 TClonesArray &lhits = *fHits;
2fa01832 297 AliTRDhit *hit = new(lhits[fNhits++]) AliTRDhit(fIshunt
298 ,track
299 ,det
300 ,hits
301 ,q
302 ,time);
303
a328fff9 304 if (inDrift) {
305 hit->SetDrift();
332e9569 306 }
a328fff9 307 else {
308 hit->SetAmplification();
309 }
030b4415 310
a328fff9 311 if (q < 0) {
312 hit->SetTRphoton();
332e9569 313 }
82bbf98a 314
fe4da5cc 315}
316
317//_____________________________________________________________________________
318void AliTRD::BuildGeometry()
319{
320 //
321 // Create the ROOT TNode geometry for the TRD
322 //
82bbf98a 323
0c5a8090 324 TNode *node;
325 TNode *top;
fe4da5cc 326 TPGON *pgon;
793ff80c 327
0c5a8090 328 // The dimensions of the TRD super module
329 const Float_t kRmin = 291.0;
330 const Float_t kRmax = 369.0;
331 const Float_t kZmax1 = 378.35;
332 const Float_t kZmax2 = 302.0;
333
030b4415 334 Float_t rmin;
335 Float_t rmax;
336 Float_t zmax1;
337 Float_t zmax2;
db30bf0f 338
053767a4 339 Int_t iLayer;
793ff80c 340
fe4da5cc 341 const Int_t kColorTRD = 46;
d3f347ff 342
fe4da5cc 343 // Find the top node alice
8230f242 344 top = gAlice->GetGeometry()->GetNode("alice");
d3f347ff 345
db30bf0f 346 if (fDisplayType == 0) {
793ff80c 347
053767a4 348 pgon = new TPGON("S_TRD","TRD","void",0,360,AliTRDgeometry::Nsector(),4);
0c5a8090 349 rmin = kRmin;
350 rmax = kRmax;
351 pgon->DefineSection(0,-kZmax1,rmax,rmax);
352 pgon->DefineSection(1,-kZmax2,rmin,rmax);
353 pgon->DefineSection(2, kZmax2,rmin,rmax);
354 pgon->DefineSection(3, kZmax1,rmax,rmax);
793ff80c 355 top->cd();
356 node = new TNode("TRD","TRD","S_TRD",0,0,0,"");
357 node->SetLineColor(kColorTRD);
358 fNodes->Add(node);
359
db30bf0f 360 }
361 else if (fDisplayType == 1) {
793ff80c 362
f73816f5 363 Char_t name[7];
364
0c5a8090 365 Float_t slope = (kZmax1 - kZmax2) / (kRmax - kRmin);
793ff80c 366
0c5a8090 367 rmin = kRmin + AliTRDgeometry::CraHght();
368 rmax = rmin + AliTRDgeometry::CdrHght();
f73816f5 369
0c5a8090 370 Float_t thickness = rmin - kRmin;
371 zmax2 = kZmax2 + slope * thickness;
793ff80c 372 zmax1 = zmax2 + slope * AliTRDgeometry::DrThick();
793ff80c 373
053767a4 374 for (iLayer = 0; iLayer < AliTRDgeometry::Nlayer(); iLayer++) {
793ff80c 375
053767a4 376 sprintf(name,"S_TR1%d",iLayer);
377 pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsector(),4);
f73816f5 378 pgon->DefineSection(0,-zmax1,rmax,rmax);
379 pgon->DefineSection(1,-zmax2,rmin,rmax);
380 pgon->DefineSection(2, zmax2,rmin,rmax);
381 pgon->DefineSection(3, zmax1,rmax,rmax);
382 top->cd();
383 node = new TNode("TRD","TRD",name,0,0,0,"");
384 node->SetLineColor(kColorTRD);
385 fNodes->Add(node);
386
387 Float_t height = AliTRDgeometry::Cheight() + AliTRDgeometry::Cspace();
388 rmin = rmin + height;
389 rmax = rmax + height;
390 zmax1 = zmax1 + slope * height;
391 zmax2 = zmax2 + slope * height;
392
393 }
394
395 thickness += AliTRDgeometry::DrThick();
0c5a8090 396 rmin = kRmin + thickness;
397 rmax = rmin + AliTRDgeometry::AmThick();
398 zmax2 = kZmax2 + slope * thickness;
399 zmax1 = zmax2 + slope * AliTRDgeometry::AmThick();
f73816f5 400
053767a4 401 for (iLayer = 0; iLayer < AliTRDgeometry::Nlayer(); iLayer++) {
f73816f5 402
053767a4 403 sprintf(name,"S_TR2%d",iLayer);
404 pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsector(),4);
793ff80c 405 pgon->DefineSection(0,-zmax1,rmax,rmax);
406 pgon->DefineSection(1,-zmax2,rmin,rmax);
407 pgon->DefineSection(2, zmax2,rmin,rmax);
408 pgon->DefineSection(3, zmax1,rmax,rmax);
409 top->cd();
410 node = new TNode("TRD","TRD",name,0,0,0,"");
411 node->SetLineColor(kColorTRD);
412 fNodes->Add(node);
413
414 Float_t height = AliTRDgeometry::Cheight() + AliTRDgeometry::Cspace();
415 rmin = rmin + height;
416 rmax = rmax + height;
417 zmax1 = zmax1 + slope * height;
418 zmax2 = zmax2 + slope * height;
419
420 }
421
db30bf0f 422 }
d3f347ff 423
fe4da5cc 424}
425
426//_____________________________________________________________________________
82bbf98a 427void AliTRD::CreateGeometry()
fe4da5cc 428{
82bbf98a 429 //
430 // Creates the volumes for the TRD chambers
431 //
82bbf98a 432
433 // Check that FRAME is there otherwise we have no place where to put the TRD
030b4415 434 AliModule *frame = gAlice->GetModule("FRAME");
8230f242 435 if (!frame) {
45160b1f 436 AliFatal("The TRD needs the FRAME to be defined first");
82bbf98a 437 }
d3f347ff 438
851d3db9 439 fGeometry->CreateGeometry(fIdtmed->GetArray() - 1299);
5c7f4665 440
82bbf98a 441}
442
443//_____________________________________________________________________________
444void AliTRD::CreateMaterials()
445{
fe4da5cc 446 //
447 // Create the materials for the TRD
fe4da5cc 448 //
449
8230f242 450 Int_t isxfld = gAlice->Field()->Integ();
451 Float_t sxmgmx = gAlice->Field()->Max();
fe4da5cc 452
d3f347ff 453 // For polyethilene (CH2)
030b4415 454 Float_t ape[2] = { 12.011 , 1.0079 };
455 Float_t zpe[2] = { 6.0 , 1.0 };
456 Float_t wpe[2] = { 1.0 , 2.0 };
457 Float_t dpe = 0.95;
d3f347ff 458
d3f347ff 459 // For CO2
030b4415 460 Float_t aco[2] = { 12.011 , 15.9994 };
461 Float_t zco[2] = { 6.0 , 8.0 };
462 Float_t wco[2] = { 1.0 , 2.0 };
f2979d08 463 Float_t dco = 0.00186; // at 20C
d3f347ff 464
465 // For water
030b4415 466 Float_t awa[2] = { 1.0079, 15.9994 };
467 Float_t zwa[2] = { 1.0 , 8.0 };
468 Float_t wwa[2] = { 2.0 , 1.0 };
469 Float_t dwa = 1.0;
d3f347ff 470
db30bf0f 471 // For plexiglas (C5H8O2)
030b4415 472 Float_t apg[3] = { 12.011 , 1.0079, 15.9994 };
473 Float_t zpg[3] = { 6.0 , 1.0 , 8.0 };
474 Float_t wpg[3] = { 5.0 , 8.0 , 2.0 };
475 Float_t dpg = 1.18;
08ca3951 476
477 // For epoxy (C18H19O3)
3dac2b2d 478 Float_t aEpoxy[3] = { 15.9994, 1.0079, 12.011 };
479 Float_t zEpoxy[3] = { 8.0 , 1.0 , 6.0 };
480 Float_t wEpoxy[3] = { 3.0 , 19.0 , 18.0 };
08ca3951 481 Float_t dEpoxy = 1.8 ;
482
0c5a8090 483 // For Araldite, low density epoxy (C18H19O3)
484 Float_t aAral[3] = { 15.9994, 1.0079, 12.011 };
485 Float_t zAral[3] = { 8.0 , 1.0 , 6.0 };
486 Float_t wAral[3] = { 3.0 , 19.0 , 18.0 };
487 Float_t dAral = 1.05;
488
08ca3951 489 // For air
3dac2b2d 490 Float_t aAir[4] = { 12.011 , 14.0 , 15.9994 , 36.0 };
491 Float_t zAir[4] = { 6.0 , 7.0 , 8.0 , 18.0 };
492 Float_t wAir[4] = { 0.000124, 0.755267, 0.231781, 0.012827 };
0c5a8090 493 Float_t dAir = 1.20479e-03;
08ca3951 494
495 // For G10
3dac2b2d 496 Float_t aG10[4] = { 1.0079 , 12.011 , 15.9994 , 28.086 };
497 Float_t zG10[4] = { 1.0 , 6.0 , 8.0 , 14.0 };
498 Float_t wG10[4] = { 0.15201 , 0.10641 , 0.49444 , 0.24714 };
08ca3951 499 Float_t dG10 = 1.7;
db30bf0f 500
d3f347ff 501 // For Xe/CO2-gas-mixture
3dac2b2d 502 Float_t aXeCO2[3] = { 131.29 , 12.0107 , 15.9994 };
503 Float_t zXeCO2[3] = { 54.0 , 6.0 , 8.0 };
330bfc2f 504 Float_t wXeCO2[3] = { 8.5 , 1.5 , 3.0 };
db30bf0f 505 // Xe-content of the Xe/CO2-mixture (85% / 15%)
3dac2b2d 506 Float_t fxc = 0.85;
f2979d08 507 Float_t dxe = 0.00549; // at 20C
508 Float_t dgmXe = fxc * dxe + (1.0 - fxc) * dco;
509
510 // For Ar/CO2-gas-mixture
511 Float_t aArCO2[3] = { 39.948 , 12.0107 , 15.9994 };
512 Float_t zArCO2[3] = { 18.0 , 6.0 , 8.0 };
513 Float_t wArCO2[3] = { 8.2 , 1.8 , 3.6 };
514 // Ar-content of the Ar/CO2-mixture (82% / 18%)
515 Float_t fac = 0.82;
516 Float_t dar = 0.00166; // at 20C
517 Float_t dgmAr = fac * dar + (1.0 - fac) * dco;
fe4da5cc 518
d3f347ff 519 // General tracking parameter
030b4415 520 Float_t tmaxfd = -10.0;
521 Float_t stemax = -1.0e10;
522 Float_t deemax = -0.1;
523 Float_t epsil = 1.0e-4;
524 Float_t stmin = -0.001;
fe4da5cc 525
d3f347ff 526 //////////////////////////////////////////////////////////////////////////
fe4da5cc 527 // Define Materials
d3f347ff 528 //////////////////////////////////////////////////////////////////////////
529
16bf9884 530 AliMaterial( 1, "Al" , 26.98, 13.0, 2.7 , 8.9 , 37.2);
3dac2b2d 531 AliMaterial( 4, "Xe" , 131.29, 54.0, dxe , 1546.16, 0.0);
16bf9884 532 AliMaterial( 5, "Cu" , 63.54, 29.0, 8.96 , 1.43, 14.8);
533 AliMaterial( 6, "C" , 12.01, 6.0, 2.265 , 18.8 , 74.4);
16bf9884 534 AliMaterial(15, "Sn" , 118.71, 50.0, 7.31 , 1.21, 14.8);
535 AliMaterial(16, "Si" , 28.09, 14.0, 2.33 , 9.36, 37.2);
0c5a8090 536 AliMaterial(18, "Fe" , 55.85, 26.0, 7.87 , 1.76, 14.8);
d3f347ff 537
538 // Mixtures
3dac2b2d 539 AliMixture(2, "Air" , aAir, zAir, dAir, 4, wAir );
540 AliMixture(3, "Polyethilene", ape, zpe, dpe, -2, wpe );
3dac2b2d 541 AliMixture(8, "CO2", aco, zco, dco, -2, wco );
f2979d08 542 if (AliTRDSimParam::Instance()->IsXenon()) {
543 AliMixture(10,"XeCO2", aXeCO2, zXeCO2, dgmXe, -3, wXeCO2);
544 }
545 else if (AliTRDSimParam::Instance()->IsArgon()) {
546 AliInfo("Gas mixture: Ar C02 (80/20)");
547 AliMixture(10,"ArCO2", aArCO2, zArCO2, dgmAr, -3, wArCO2);
548 }
549 else {
550 AliFatal("Wrong gas mixture");
551 exit(1);
552 }
3dac2b2d 553 AliMixture(12,"G10", aG10, zG10, dG10, 4, wG10 );
554 AliMixture(13,"Water", awa, zwa, dwa, -2, wwa );
555 AliMixture(14,"Plexiglas", apg, zpg, dpg, -3, wpg );
556 AliMixture(17,"Epoxy", aEpoxy, zEpoxy, dEpoxy, -3, wEpoxy);
0c5a8090 557 AliMixture(19,"Araldite", aAral, zAral, dAral, -3, wAral );
3dac2b2d 558
d3f347ff 559 //////////////////////////////////////////////////////////////////////////
fe4da5cc 560 // Tracking Media Parameters
d3f347ff 561 //////////////////////////////////////////////////////////////////////////
562
563 // Al Frame
0c5a8090 564 AliMedium( 1,"Al Frame" , 1,0,isxfld,sxmgmx
565 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 566 // Air
0c5a8090 567 AliMedium( 2,"Air" , 2,0,isxfld,sxmgmx
568 ,tmaxfd,stemax,deemax,epsil,stmin);
569 // Wires
570 AliMedium( 3,"Wires" , 5,0,isxfld,sxmgmx
571 ,tmaxfd,stemax,deemax,epsil,stmin);
572 // All other ROB materials (caps, etc.)
573 AliMedium( 4,"ROB Other" , 5,0,isxfld,sxmgmx
574 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 575 // Cu pads
0c5a8090 576 AliMedium( 5,"Padplane" , 5,1,isxfld,sxmgmx
577 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 578 // Fee + cables
0c5a8090 579 AliMedium( 6,"Readout" , 5,0,isxfld,sxmgmx
580 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 581 // C frame
0c5a8090 582 AliMedium( 7,"C Frame" , 6,0,isxfld,sxmgmx
583 ,tmaxfd,stemax,deemax,epsil,stmin);
584 // INOX of cooling bus bars
585 AliMedium( 8,"Cooling bus",18,0,isxfld,sxmgmx
586 ,tmaxfd,stemax,deemax,epsil,stmin);
3dac2b2d 587 // Gas-mixture (Xe/CO2)
0c5a8090 588 AliMedium( 9,"Gas-mix" ,10,1,isxfld,sxmgmx
589 ,tmaxfd,stemax,deemax,epsil,stmin);
590 // Nomex-honeycomb
591 AliMedium(10,"Nomex" ,12,0,isxfld,sxmgmx
592 ,tmaxfd,stemax,deemax,epsil,stmin);
593 // Araldite glue
594 AliMedium(11,"Glue" ,19,0,isxfld,sxmgmx
595 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 596 // G10-plates
0c5a8090 597 AliMedium(13,"G10-plates" ,12,0,isxfld,sxmgmx
598 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 599 // Cooling water
0c5a8090 600 AliMedium(14,"Water" ,13,0,isxfld,sxmgmx
601 ,tmaxfd,stemax,deemax,epsil,stmin);
db30bf0f 602 // Rohacell (plexiglas) for the radiator
0c5a8090 603 AliMedium(15,"Rohacell" ,14,0,isxfld,sxmgmx
604 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 605 // Al layer in MCMs
0c5a8090 606 AliMedium(16,"MCM-Al" , 1,0,isxfld,sxmgmx
607 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 608 // Sn layer in MCMs
0c5a8090 609 AliMedium(17,"MCM-Sn" ,15,0,isxfld,sxmgmx
610 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 611 // Cu layer in MCMs
0c5a8090 612 AliMedium(18,"MCM-Cu" , 5,0,isxfld,sxmgmx
613 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 614 // G10 layer in MCMs
0c5a8090 615 AliMedium(19,"MCM-G10" ,12,0,isxfld,sxmgmx
616 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 617 // Si in readout chips
0c5a8090 618 AliMedium(20,"Chip-Si" ,16,0,isxfld,sxmgmx
619 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 620 // Epoxy in readout chips
0c5a8090 621 AliMedium(21,"Chip-Ep" ,17,0,isxfld,sxmgmx
622 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 623 // PE in connectors
0c5a8090 624 AliMedium(22,"Conn-PE" , 3,0,isxfld,sxmgmx
625 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 626 // Cu in connectors
0c5a8090 627 AliMedium(23,"Chip-Cu" , 5,0,isxfld,sxmgmx
628 ,tmaxfd,stemax,deemax,epsil,stmin);
16bf9884 629 // Al of cooling pipes
0c5a8090 630 AliMedium(24,"Cooling" , 1,0,isxfld,sxmgmx
631 ,tmaxfd,stemax,deemax,epsil,stmin);
73ae7b59 632 // Cu in services
0c5a8090 633 AliMedium(25,"Serv-Cu" , 5,0,isxfld,sxmgmx
634 ,tmaxfd,stemax,deemax,epsil,stmin);
d3f347ff 635
793ff80c 636 // Save the density values for the TRD absorbtion
0c5a8090 637 Float_t dmy = 1.39;
793ff80c 638 fFoilDensity = dmy;
f2979d08 639 if (AliTRDSimParam::Instance()->IsXenon()) {
640 fGasDensity = dgmXe;
641 fGasNobleFraction = fxc;
642 }
643 else if (AliTRDSimParam::Instance()->IsArgon()) {
644 fGasDensity = dgmAr;
645 fGasNobleFraction = fac;
646 }
793ff80c 647
fe4da5cc 648}
649
650//_____________________________________________________________________________
ba380e33 651void AliTRD::DrawModule() const
82bbf98a 652{
653 //
654 // Draw a shaded view of the Transition Radiation Detector version 0
655 //
656
657 // Set everything unseen
658 gMC->Gsatt("*" ,"SEEN",-1);
659
660 // Set ALIC mother transparent
661 gMC->Gsatt("ALIC","SEEN", 0);
662
663 // Set the volumes visible
851d3db9 664 if (fGeometry->IsVersion() == 0) {
5c7f4665 665 gMC->Gsatt("B071","SEEN", 0);
666 gMC->Gsatt("B074","SEEN", 0);
667 gMC->Gsatt("B075","SEEN", 0);
668 gMC->Gsatt("B077","SEEN", 0);
669 gMC->Gsatt("BTR1","SEEN", 0);
670 gMC->Gsatt("BTR2","SEEN", 0);
671 gMC->Gsatt("BTR3","SEEN", 0);
332e9569 672 gMC->Gsatt("UTR1","SEEN", 0);
673 gMC->Gsatt("UTR2","SEEN", 0);
674 gMC->Gsatt("UTR3","SEEN", 0);
5c7f4665 675 }
676 else {
677 gMC->Gsatt("B071","SEEN", 0);
678 gMC->Gsatt("B074","SEEN", 0);
679 gMC->Gsatt("B075","SEEN", 0);
680 gMC->Gsatt("B077","SEEN", 0);
681 gMC->Gsatt("BTR1","SEEN", 0);
682 gMC->Gsatt("BTR2","SEEN", 0);
683 gMC->Gsatt("BTR3","SEEN", 0);
332e9569 684 gMC->Gsatt("UTR1","SEEN", 0);
5c7f4665 685 }
82bbf98a 686
687 gMC->Gdopt("hide", "on");
688 gMC->Gdopt("shad", "on");
689 gMC->Gsatt("*", "fill", 7);
690 gMC->SetClipBox(".");
691 gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
692 gMC->DefaultRange();
693 gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
694 gMC->Gdhead(1111, "Transition Radiation Detector");
695 gMC->Gdman(18, 4, "MAN");
696
697}
fe4da5cc 698
699//_____________________________________________________________________________
700void AliTRD::Init()
701{
702 //
851d3db9 703 // Initialize the TRD detector after the geometry has been created
fe4da5cc 704 //
82bbf98a 705
45160b1f 706 AliDebug(1,"++++++++++++++++++++++++++++++++++++++++++++++");
5c7f4665 707
bd0f8685 708 if (fGeometry->IsVersion() != 1) {
45160b1f 709 AliError("Not a valid geometry");
d37eec5e 710 }
5f06bf41 711
7235aed2 712 // Special tracking options for charged particles for XeCO2
5f06bf41 713 gMC->Gstpar((* fIdtmed)[9],"DRAY" , 1.0);
714 gMC->Gstpar((* fIdtmed)[9],"STRA" , 1.0);
715 gMC->Gstpar((* fIdtmed)[9],"LOSS" ,13.0); // Specific energy loss
716 gMC->Gstpar((* fIdtmed)[9],"PRIMIO_E",23.53); // 1st ionisation potential
717 gMC->Gstpar((* fIdtmed)[9],"PRIMIO_N",19.344431); // Number of primaries
718
5c7f4665 719}
720
721//_____________________________________________________________________________
73ae7b59 722void AliTRD::LoadPoints(Int_t )
793ff80c 723{
724 //
725 // Store x, y, z of all hits in memory.
726 // Hit originating from TR photons are given a different color
727 //
728
030b4415 729 if (fHits == 0) {
730 return;
731 }
793ff80c 732
030b4415 733 Int_t nhits = fHits->GetEntriesFast();
734 if (nhits == 0) {
735 return;
736 }
793ff80c 737
5d12ce38 738 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
030b4415 739 if (fPoints == 0) {
740 fPoints = new TObjArray(tracks);
741 }
793ff80c 742
743 AliTRDhit *ahit;
744
745 Int_t *ntrkE = new Int_t[tracks];
746 Int_t *ntrkT = new Int_t[tracks];
747 Int_t *limiE = new Int_t[tracks];
748 Int_t *limiT = new Int_t[tracks];
749 Float_t **coorE = new Float_t*[tracks];
750 Float_t **coorT = new Float_t*[tracks];
751 for(Int_t i = 0; i < tracks; i++) {
752 ntrkE[i] = 0;
753 ntrkT[i] = 0;
754 coorE[i] = 0;
755 coorT[i] = 0;
756 limiE[i] = 0;
757 limiT[i] = 0;
758 }
759
332e9569 760 AliTRDpoints *points = 0;
761 Float_t *fp = 0;
762 Int_t trk;
763 Int_t chunk = nhits / 4 + 1;
793ff80c 764
765 // Loop over all the hits and store their position
332e9569 766 ahit = (AliTRDhit *) FirstHit(-1);
767 while (ahit) {
793ff80c 768
769 // dEdx hits
332e9569 770 if (ahit->GetCharge() >= 0) {
793ff80c 771
772 trk = ahit->GetTrack();
773 if (ntrkE[trk] == limiE[trk]) {
774 // Initialise a new track
775 fp = new Float_t[3*(limiE[trk]+chunk)];
776 if (coorE[trk]) {
777 memcpy(fp,coorE[trk],sizeof(Float_t)*3*limiE[trk]);
778 delete [] coorE[trk];
779 }
780 limiE[trk] += chunk;
781 coorE[trk] = fp;
782 }
783 else {
784 fp = coorE[trk];
785 }
786 fp[3*ntrkE[trk] ] = ahit->X();
787 fp[3*ntrkE[trk]+1] = ahit->Y();
788 fp[3*ntrkE[trk]+2] = ahit->Z();
789 ntrkE[trk]++;
790
791 }
792 // TR photon hits
030b4415 793 else if ((ahit->GetCharge() < 0) &&
794 (fDrawTR)) {
793ff80c 795
796 trk = ahit->GetTrack();
797 if (ntrkT[trk] == limiT[trk]) {
798 // Initialise a new track
799 fp = new Float_t[3*(limiT[trk]+chunk)];
800 if (coorT[trk]) {
801 memcpy(fp,coorT[trk],sizeof(Float_t)*3*limiT[trk]);
802 delete [] coorT[trk];
803 }
804 limiT[trk] += chunk;
805 coorT[trk] = fp;
806 }
807 else {
808 fp = coorT[trk];
809 }
810 fp[3*ntrkT[trk] ] = ahit->X();
811 fp[3*ntrkT[trk]+1] = ahit->Y();
812 fp[3*ntrkT[trk]+2] = ahit->Z();
813 ntrkT[trk]++;
814
815 }
816
332e9569 817 ahit = (AliTRDhit *) NextHit();
818
793ff80c 819 }
820
821 for (trk = 0; trk < tracks; ++trk) {
822
823 if (ntrkE[trk] || ntrkT[trk]) {
824
825 points = new AliTRDpoints();
826 points->SetDetector(this);
827 points->SetParticle(trk);
828
829 // Set the dEdx points
830 if (ntrkE[trk]) {
e939a978 831 points->SetMarkerColor(kWhite); //PH This is the default color in TRD
832 points->SetMarkerSize(1); //PH Default size=1
833 points->SetPolyMarker(ntrkE[trk],coorE[trk],1); //PH Default style=1
793ff80c 834 delete [] coorE[trk];
835 coorE[trk] = 0;
836 }
837
838 // Set the TR photon points
839 if (ntrkT[trk]) {
840 points->SetTRpoints(ntrkT[trk],coorT[trk]);
841 delete [] coorT[trk];
842 coorT[trk] = 0;
843 }
844
845 fPoints->AddAt(points,trk);
846
847 }
848
849 }
850
851 delete [] coorE;
852 delete [] coorT;
853 delete [] ntrkE;
854 delete [] ntrkT;
855 delete [] limiE;
856 delete [] limiT;
857
858}
859
860//_____________________________________________________________________________
030b4415 861void AliTRD::MakeBranch(Option_t *option)
5c7f4665 862{
863 //
abaf1f1d 864 // Create Tree branches for the TRD digits.
5c7f4665 865 //
866
abaf1f1d 867 Int_t buffersize = 4000;
868 Char_t branchname[15];
869 sprintf(branchname,"%s",GetName());
5c7f4665 870
030b4415 871 const Char_t *cD = strstr(option,"D");
aa9d00f0 872
88cb7938 873 AliDetector::MakeBranch(option);
5c7f4665 874
030b4415 875 if (fDigits &&
876 gAlice->TreeD() &&
877 cD) {
88cb7938 878 MakeBranchInTree(gAlice->TreeD(),branchname,&fDigits,buffersize,0);
030b4415 879 }
abaf1f1d 880
851d3db9 881}
882
883//_____________________________________________________________________________
6244debe 884void AliTRD::ResetDigits()
885{
886 //
abaf1f1d 887 // Reset number of digits and the digits array for this detector
6244debe 888 //
889
abaf1f1d 890 fNdigits = 0;
030b4415 891
892 if (fDigits) {
893 fDigits->Clear();
894 }
6244debe 895
896}
897
898//_____________________________________________________________________________
5c7f4665 899void AliTRD::SetTreeAddress()
900{
901 //
902 // Set the branch addresses for the trees.
903 //
904
030b4415 905 if (fLoader->TreeH() &&
906 (fHits == 0x0)) {
a328fff9 907 fHits = new TClonesArray("AliTRDhit",405);
332e9569 908 }
a328fff9 909 AliDetector::SetTreeAddress();
332e9569 910
fe4da5cc 911}
912
d3f347ff 913//_____________________________________________________________________________
68119ad1 914Bool_t AliTRD::Raw2SDigits(AliRawReader *rawReader)
915{
916 //
917 // Converts RAW data to SDigits
918 //
919
920 AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
921 if (!loader) {
922 AliError("Can not get TRD loader from Run Loader");
923 return kFALSE;
924 }
925
926 TTree *tree = 0;
927 tree = loader->TreeS();
928 if (!tree) {
929 loader->MakeTree("S");
930 tree = loader->TreeS();
931 }
932
933 AliTRDrawData *rawdata = new AliTRDrawData();
934 AliTRDdigitsManager *sdigitsManager = rawdata->Raw2Digits(rawReader);
935 if (sdigitsManager) {
936 sdigitsManager->SetSDigits(kTRUE);
937 sdigitsManager->MakeBranch(tree);
938 sdigitsManager->WriteDigits();
939 return kTRUE;
940 }
941 else {
942 return kFALSE;
943 }
944
945}
946
947//_____________________________________________________________________________
dd9a6ee3 948AliTRD &AliTRD::operator=(const AliTRD &trd)
949{
950 //
951 // Assignment operator
952 //
953
0c5a8090 954 if (this != &trd) {
955 ((AliTRD &) trd).Copy(*this);
956 }
030b4415 957
dd9a6ee3 958 return *this;
959
68119ad1 960}