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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
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" |
b864d801 | 57 | #include "AliTRDrawData.h" |
3551db50 | 58 | #include "AliTRDSimParam.h" |
3551db50 | 59 | #include "AliTRDCommonParam.h" |
60 | #include "AliTRDcalibDB.h" | |
61 | ||
fe4da5cc | 62 | ClassImp(AliTRD) |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | AliTRD::AliTRD() | |
030b4415 | 66 | :AliDetector() |
67 | ,fGeometry(0) | |
68 | ,fGasDensity(0) | |
69 | ,fFoilDensity(0) | |
f2979d08 | 70 | ,fGasNobleFraction(0) |
030b4415 | 71 | ,fDrawTR(0) |
72 | ,fDisplayType(0) | |
fe4da5cc | 73 | { |
74 | // | |
75 | // Default constructor | |
76 | // | |
332e9569 | 77 | |
fe4da5cc | 78 | } |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | AliTRD::AliTRD(const char *name, const char *title) | |
030b4415 | 82 | :AliDetector(name,title) |
83 | ,fGeometry(0) | |
84 | ,fGasDensity(0) | |
85 | ,fFoilDensity(0) | |
457b47bb | 86 | ,fGasNobleFraction(0) |
030b4415 | 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 | ||
99d5402e | 117 | //_____________________________________________________________________________ |
118 | AliTRD::~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 | ||
6244debe | 136 | //_____________________________________________________________________________ |
137 | void 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 | //_____________________________________________________________________________ | |
169 | void 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 | 203 | AliDigitizer *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 | //_____________________________________________________________________________ | |
214 | void 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 | ||
b864d801 | 265 | //_____________________________________________________________________________ |
266 | void 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 | ||
fe4da5cc | 288 | //_____________________________________________________________________________ |
332e9569 | 289 | void 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 | //_____________________________________________________________________________ | |
318 | void 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 | 427 | void 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 | //_____________________________________________________________________________ | |
444 | void 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 | ||
82bbf98a | 650 | //_____________________________________________________________________________ |
ba380e33 | 651 | void 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 | //_____________________________________________________________________________ | |
700 | void 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 | ||
6244debe | 721 | //_____________________________________________________________________________ |
722 | void AliTRD::ResetDigits() | |
723 | { | |
724 | // | |
abaf1f1d | 725 | // Reset number of digits and the digits array for this detector |
6244debe | 726 | // |
727 | ||
abaf1f1d | 728 | fNdigits = 0; |
030b4415 | 729 | |
730 | if (fDigits) { | |
731 | fDigits->Clear(); | |
732 | } | |
6244debe | 733 | |
734 | } | |
735 | ||
5c7f4665 | 736 | //_____________________________________________________________________________ |
737 | void AliTRD::SetTreeAddress() | |
738 | { | |
739 | // | |
740 | // Set the branch addresses for the trees. | |
741 | // | |
742 | ||
030b4415 | 743 | if (fLoader->TreeH() && |
744 | (fHits == 0x0)) { | |
a328fff9 | 745 | fHits = new TClonesArray("AliTRDhit",405); |
332e9569 | 746 | } |
a328fff9 | 747 | AliDetector::SetTreeAddress(); |
332e9569 | 748 | |
fe4da5cc | 749 | } |
750 | ||
68119ad1 | 751 | //_____________________________________________________________________________ |
752 | Bool_t AliTRD::Raw2SDigits(AliRawReader *rawReader) | |
753 | { | |
754 | // | |
755 | // Converts RAW data to SDigits | |
756 | // | |
757 | ||
758 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); | |
759 | if (!loader) { | |
760 | AliError("Can not get TRD loader from Run Loader"); | |
761 | return kFALSE; | |
762 | } | |
763 | ||
764 | TTree *tree = 0; | |
765 | tree = loader->TreeS(); | |
766 | if (!tree) { | |
767 | loader->MakeTree("S"); | |
768 | tree = loader->TreeS(); | |
769 | } | |
770 | ||
771 | AliTRDrawData *rawdata = new AliTRDrawData(); | |
772 | AliTRDdigitsManager *sdigitsManager = rawdata->Raw2Digits(rawReader); | |
773 | if (sdigitsManager) { | |
774 | sdigitsManager->SetSDigits(kTRUE); | |
775 | sdigitsManager->MakeBranch(tree); | |
776 | sdigitsManager->WriteDigits(); | |
777 | return kTRUE; | |
778 | } | |
779 | else { | |
780 | return kFALSE; | |
781 | } | |
782 | ||
783 | } | |
784 | ||
9c7c9ec1 | 785 | //_____________________________________________________________________________ |
786 | AliLoader* AliTRD::MakeLoader(const char* topfoldername) | |
787 | { | |
788 | fLoader = new AliLoader(GetName(),topfoldername); | |
789 | ||
790 | AliInfo("Adding Tracklets-loader"); | |
791 | AliDataLoader *dl = new AliDataLoader("TRD.Tracklets.root","tracklets", "tracklets"); | |
792 | fLoader->AddDataLoader(dl); | |
793 | ||
794 | return fLoader; | |
795 | } | |
796 | ||
dd9a6ee3 | 797 | //_____________________________________________________________________________ |
798 | AliTRD &AliTRD::operator=(const AliTRD &trd) | |
799 | { | |
800 | // | |
801 | // Assignment operator | |
802 | // | |
803 | ||
0c5a8090 | 804 | if (this != &trd) { |
805 | ((AliTRD &) trd).Copy(*this); | |
806 | } | |
030b4415 | 807 | |
dd9a6ee3 | 808 | return *this; |
809 | ||
68119ad1 | 810 | } |