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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 | ||
f7a1cc68 | 26 | #include <TGeoGlobalMagField.h> |
88cb7938 | 27 | #include <TVirtualMC.h> |
32b13758 | 28 | #include <TGeoManager.h> |
88cb7938 | 29 | |
45160b1f | 30 | #include "AliMC.h" |
793ff80c | 31 | #include "AliMagF.h" |
88cb7938 | 32 | #include "AliRun.h" |
030b4415 | 33 | |
793ff80c | 34 | #include "AliTRD.h" |
851d3db9 | 35 | #include "AliTRDdigitizer.h" |
88cb7938 | 36 | #include "AliTRDdigitsManager.h" |
bd0f8685 | 37 | #include "AliTRDgeometry.h" |
88cb7938 | 38 | #include "AliTRDhit.h" |
b864d801 | 39 | #include "AliTRDrawData.h" |
a076fc2f | 40 | #include "AliTRDCommonParam.h" |
3551db50 | 41 | |
fe4da5cc | 42 | ClassImp(AliTRD) |
43 | ||
44 | //_____________________________________________________________________________ | |
45 | AliTRD::AliTRD() | |
030b4415 | 46 | :AliDetector() |
47 | ,fGeometry(0) | |
48 | ,fGasDensity(0) | |
49 | ,fFoilDensity(0) | |
f2979d08 | 50 | ,fGasNobleFraction(0) |
674812e4 | 51 | ,fPrimaryIonisation(0) |
fe4da5cc | 52 | { |
53 | // | |
54 | // Default constructor | |
55 | // | |
332e9569 | 56 | |
fe4da5cc | 57 | } |
58 | ||
59 | //_____________________________________________________________________________ | |
60 | AliTRD::AliTRD(const char *name, const char *title) | |
030b4415 | 61 | :AliDetector(name,title) |
62 | ,fGeometry(0) | |
63 | ,fGasDensity(0) | |
64 | ,fFoilDensity(0) | |
457b47bb | 65 | ,fGasNobleFraction(0) |
674812e4 | 66 | ,fPrimaryIonisation(0) |
fe4da5cc | 67 | { |
68 | // | |
69 | // Standard constructor for the TRD | |
70 | // | |
71 | ||
030b4415 | 72 | // Check that FRAME is there otherwise we have no place where to put TRD |
73 | AliModule *frame = gAlice->GetModule("FRAME"); | |
8230f242 | 74 | if (!frame) { |
030b4415 | 75 | AliError("TRD needs FRAME to be present\n"); |
5c7f4665 | 76 | exit(1); |
77 | } | |
78 | ||
d37eec5e | 79 | // Define the TRD geometry |
80 | if ((frame->IsVersion() == 0) || | |
81 | (frame->IsVersion() == 1)) { | |
bd0f8685 | 82 | fGeometry = new AliTRDgeometry(); |
851d3db9 | 83 | } |
84 | else { | |
030b4415 | 85 | AliError("Could not find valid FRAME version\n"); |
851d3db9 | 86 | exit(1); |
87 | } | |
5c7f4665 | 88 | |
fe4da5cc | 89 | // Allocate the hit array |
030b4415 | 90 | fHits = new TClonesArray("AliTRDhit",405); |
5d12ce38 | 91 | gAlice->GetMCApp()->AddHitList(fHits); |
e306b465 | 92 | |
8230f242 | 93 | } |
94 | ||
99d5402e | 95 | //_____________________________________________________________________________ |
96 | AliTRD::~AliTRD() | |
97 | { | |
98 | // | |
99 | // TRD destructor | |
100 | // | |
e306b465 | 101 | |
abaf1f1d | 102 | if (fGeometry) { |
103 | delete fGeometry; | |
030b4415 | 104 | fGeometry = 0; |
abaf1f1d | 105 | } |
030b4415 | 106 | |
abaf1f1d | 107 | if (fHits) { |
108 | delete fHits; | |
030b4415 | 109 | fHits = 0; |
abaf1f1d | 110 | } |
bd0f8685 | 111 | |
5c7f4665 | 112 | } |
113 | ||
6244debe | 114 | //_____________________________________________________________________________ |
115 | void AliTRD::Hits2Digits() | |
2ab0c725 | 116 | { |
117 | // | |
118 | // Create digits | |
119 | // | |
bd0f8685 | 120 | |
be385a87 | 121 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); |
45160b1f | 122 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); |
9a96f175 | 123 | |
6244debe | 124 | // Initialization |
be385a87 | 125 | digitizer.InitDetector(); |
e306b465 | 126 | |
030b4415 | 127 | if (!fLoader->TreeH()) { |
128 | fLoader->LoadHits("read"); | |
129 | } | |
85a5290f | 130 | fLoader->LoadDigits("recreate"); |
95867fd1 | 131 | |
030b4415 | 132 | AliRunLoader *runLoader = fLoader->GetRunLoader(); |
6244debe | 133 | |
85a5290f | 134 | for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) { |
95867fd1 | 135 | runLoader->GetEvent(iEvent); |
136 | digitizer.Open(runLoader,iEvent); | |
be385a87 | 137 | digitizer.MakeDigits(); |
138 | digitizer.WriteDigits(); | |
6244debe | 139 | } |
140 | ||
85a5290f | 141 | fLoader->UnloadHits(); |
142 | fLoader->UnloadDigits(); | |
a328fff9 | 143 | |
6244debe | 144 | } |
145 | ||
146 | //_____________________________________________________________________________ | |
147 | void AliTRD::Hits2SDigits() | |
148 | { | |
149 | // | |
150 | // Create summable digits | |
151 | // | |
a328fff9 | 152 | |
be385a87 | 153 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); |
6244debe | 154 | // For the summable digits |
be385a87 | 155 | digitizer.SetSDigits(kTRUE); |
45160b1f | 156 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); |
6244debe | 157 | |
158 | // Initialization | |
be385a87 | 159 | digitizer.InitDetector(); |
e306b465 | 160 | |
030b4415 | 161 | if (!fLoader->TreeH()) { |
162 | fLoader->LoadHits("read"); | |
163 | } | |
85a5290f | 164 | fLoader->LoadSDigits("recreate"); |
95867fd1 | 165 | |
166 | AliRunLoader *runLoader = fLoader->GetRunLoader(); | |
6244debe | 167 | |
85a5290f | 168 | for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) { |
95867fd1 | 169 | runLoader->GetEvent(iEvent); |
170 | digitizer.Open(runLoader,iEvent); | |
be385a87 | 171 | digitizer.MakeDigits(); |
172 | digitizer.WriteDigits(); | |
85a5290f | 173 | } |
2ab0c725 | 174 | |
85a5290f | 175 | fLoader->UnloadHits(); |
176 | fLoader->UnloadSDigits(); | |
a328fff9 | 177 | |
178 | } | |
6244debe | 179 | |
85a5290f | 180 | //_____________________________________________________________________________ |
95867fd1 | 181 | AliDigitizer *AliTRD::CreateDigitizer(AliRunDigitizer *manager) const |
85a5290f | 182 | { |
a328fff9 | 183 | // |
184 | // Creates a new digitizer object | |
185 | // | |
186 | ||
85a5290f | 187 | return new AliTRDdigitizer(manager); |
a328fff9 | 188 | |
6244debe | 189 | } |
190 | ||
191 | //_____________________________________________________________________________ | |
192 | void AliTRD::SDigits2Digits() | |
193 | { | |
194 | // | |
195 | // Create final digits from summable digits | |
196 | // | |
197 | ||
bd0f8685 | 198 | // Create the TRD digitizer |
be385a87 | 199 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); |
45160b1f | 200 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); |
99d5402e | 201 | |
abaf1f1d | 202 | // Set the parameter |
be385a87 | 203 | digitizer.SetEvent(gAlice->GetEvNumber()); |
abaf1f1d | 204 | |
205 | // Initialization | |
be385a87 | 206 | digitizer.InitDetector(); |
abaf1f1d | 207 | |
208 | // Read the s-digits via digits manager | |
be385a87 | 209 | AliTRDdigitsManager sdigitsManager; |
88cb7938 | 210 | |
45160b1f | 211 | AliLog::SetClassDebugLevel("TRDdigitisManager",AliDebugLevel()); |
be385a87 | 212 | sdigitsManager.SetSDigits(kTRUE); |
213 | sdigitsManager.CreateArrays(); | |
88cb7938 | 214 | |
030b4415 | 215 | if (!fLoader->TreeS()) { |
216 | if (fLoader->LoadSDigits("read")) { | |
217 | return; | |
218 | } | |
219 | } | |
220 | if (!fLoader->TreeS()) { | |
221 | AliError(Form("Error while reading SDigits for event %d",gAlice->GetEvNumber())); | |
222 | return; | |
223 | } | |
88cb7938 | 224 | |
be385a87 | 225 | sdigitsManager.ReadDigits(fLoader->TreeS()); |
abaf1f1d | 226 | |
227 | // Add the s-digits to the input list | |
be385a87 | 228 | digitizer.AddSDigitsManager(&sdigitsManager); |
99d5402e | 229 | |
abaf1f1d | 230 | // Convert the s-digits to normal digits |
be385a87 | 231 | digitizer.SDigits2Digits(); |
abaf1f1d | 232 | |
233 | // Store the digits | |
030b4415 | 234 | if (!fLoader->TreeD()) { |
235 | fLoader->MakeTree("D"); | |
236 | } | |
be385a87 | 237 | if (digitizer.MakeBranch(fLoader->TreeD())){ |
238 | digitizer.WriteDigits(); | |
abaf1f1d | 239 | } |
99d5402e | 240 | |
241 | } | |
242 | ||
b864d801 | 243 | //_____________________________________________________________________________ |
244 | void AliTRD::Digits2Raw() | |
245 | { | |
246 | // | |
030b4415 | 247 | // Convert digits of the current event to raw data |
b864d801 | 248 | // |
249 | ||
250 | fLoader->LoadDigits(); | |
030b4415 | 251 | TTree *digits = fLoader->TreeD(); |
b864d801 | 252 | if (!digits) { |
030b4415 | 253 | AliError("No digits tree"); |
b864d801 | 254 | return; |
255 | } | |
256 | ||
257 | AliTRDrawData rawWriter; | |
b864d801 | 258 | if (!rawWriter.Digits2Raw(digits)) { |
030b4415 | 259 | AliError("The raw writer could not load the digits tree"); |
b864d801 | 260 | } |
261 | ||
262 | fLoader->UnloadDigits(); | |
263 | ||
264 | } | |
265 | ||
fe4da5cc | 266 | //_____________________________________________________________________________ |
332e9569 | 267 | void AliTRD::AddHit(Int_t track, Int_t det, Float_t *hits, Int_t q |
2fa01832 | 268 | , Float_t time, Bool_t inDrift) |
fe4da5cc | 269 | { |
270 | // | |
271 | // Add a hit for the TRD | |
332e9569 | 272 | // |
82bbf98a | 273 | |
a328fff9 | 274 | TClonesArray &lhits = *fHits; |
2fa01832 | 275 | AliTRDhit *hit = new(lhits[fNhits++]) AliTRDhit(fIshunt |
276 | ,track | |
277 | ,det | |
278 | ,hits | |
279 | ,q | |
280 | ,time); | |
281 | ||
a328fff9 | 282 | if (inDrift) { |
283 | hit->SetDrift(); | |
332e9569 | 284 | } |
a328fff9 | 285 | else { |
286 | hit->SetAmplification(); | |
287 | } | |
030b4415 | 288 | |
a328fff9 | 289 | if (q < 0) { |
290 | hit->SetTRphoton(); | |
332e9569 | 291 | } |
82bbf98a | 292 | |
fe4da5cc | 293 | } |
fe4da5cc | 294 | |
295 | //_____________________________________________________________________________ | |
82bbf98a | 296 | void AliTRD::CreateGeometry() |
fe4da5cc | 297 | { |
82bbf98a | 298 | // |
299 | // Creates the volumes for the TRD chambers | |
300 | // | |
82bbf98a | 301 | |
302 | // Check that FRAME is there otherwise we have no place where to put the TRD | |
030b4415 | 303 | AliModule *frame = gAlice->GetModule("FRAME"); |
8230f242 | 304 | if (!frame) { |
45160b1f | 305 | AliFatal("The TRD needs the FRAME to be defined first"); |
82bbf98a | 306 | } |
d3f347ff | 307 | |
851d3db9 | 308 | fGeometry->CreateGeometry(fIdtmed->GetArray() - 1299); |
5c7f4665 | 309 | |
82bbf98a | 310 | } |
2d0eca96 | 311 | |
82bbf98a | 312 | //_____________________________________________________________________________ |
313 | void AliTRD::CreateMaterials() | |
314 | { | |
fe4da5cc | 315 | // |
316 | // Create the materials for the TRD | |
fe4da5cc | 317 | // |
318 | ||
32b13758 | 319 | Int_t isxfld = ((AliMagF *) TGeoGlobalMagField::Instance()->GetField())->Integ(); |
320 | Float_t sxmgmx = ((AliMagF *) TGeoGlobalMagField::Instance()->GetField())->Max(); | |
fe4da5cc | 321 | |
32b13758 | 322 | ////////////////////////////////////////////////////////////////////////// |
323 | // Define Materials | |
324 | ////////////////////////////////////////////////////////////////////////// | |
0c5a8090 | 325 | |
32b13758 | 326 | // Aluminum |
327 | AliMaterial( 1,"Al", 26.98, 13.0, 2.7, 8.9, 37.2); | |
328 | // Copper | |
329 | AliMaterial( 2,"Cu", 63.54, 29.0, 8.96, 1.43, 14.8); | |
330 | // Carbon | |
331 | AliMaterial( 3,"C" , 12.01, 6.0, 2.265, 18.8, 74.4); | |
332 | // Carbon for fiber mats | |
333 | AliMaterial( 4,"C2", 12.01, 6.0, 1.75, 18.8, 74.4); | |
334 | // Zinc | |
335 | AliMaterial( 5,"Sn", 118.71, 50.0, 7.31, 1.21, 14.8); | |
336 | // Silicon | |
337 | AliMaterial( 6,"Si", 28.09, 14.0, 2.33, 9.36, 37.2); | |
338 | // Iron | |
339 | AliMaterial( 7,"Fe", 55.85, 26.0, 7.87, 1.76, 14.8); | |
340 | ||
341 | // Air | |
3dac2b2d | 342 | Float_t aAir[4] = { 12.011 , 14.0 , 15.9994 , 36.0 }; |
343 | Float_t zAir[4] = { 6.0 , 7.0 , 8.0 , 18.0 }; | |
344 | Float_t wAir[4] = { 0.000124, 0.755267, 0.231781, 0.012827 }; | |
0c5a8090 | 345 | Float_t dAir = 1.20479e-03; |
32b13758 | 346 | AliMixture(51,"Air", aAir, zAir, dAir, 4, wAir ); |
347 | // Polyethilene (CH2) | |
348 | Float_t ape[2] = { 12.011 , 1.0079 }; | |
349 | Float_t zpe[2] = { 6.0 , 1.0 }; | |
350 | Float_t wpe[2] = { 1.0 , 2.0 }; | |
351 | Float_t dpe = 0.95; | |
352 | AliMixture(52,"Polyethilene", ape, zpe, dpe, -2, wpe ); | |
353 | // Gas mixtures | |
354 | // Xe/CO2-gas-mixture (85% / 15%) | |
3dac2b2d | 355 | Float_t aXeCO2[3] = { 131.29 , 12.0107 , 15.9994 }; |
356 | Float_t zXeCO2[3] = { 54.0 , 6.0 , 8.0 }; | |
330bfc2f | 357 | Float_t wXeCO2[3] = { 8.5 , 1.5 , 3.0 }; |
3dac2b2d | 358 | Float_t fxc = 0.85; |
f2979d08 | 359 | Float_t dxe = 0.00549; // at 20C |
32b13758 | 360 | Float_t dco = 0.00186; // at 20C |
f2979d08 | 361 | Float_t dgmXe = fxc * dxe + (1.0 - fxc) * dco; |
32b13758 | 362 | // Ar/CO2-gas-mixture |
f2979d08 | 363 | Float_t aArCO2[3] = { 39.948 , 12.0107 , 15.9994 }; |
364 | Float_t zArCO2[3] = { 18.0 , 6.0 , 8.0 }; | |
365 | Float_t wArCO2[3] = { 8.2 , 1.8 , 3.6 }; | |
f2979d08 | 366 | Float_t fac = 0.82; |
367 | Float_t dar = 0.00166; // at 20C | |
368 | Float_t dgmAr = fac * dar + (1.0 - fac) * dco; | |
a076fc2f | 369 | if (AliTRDCommonParam::Instance()->IsXenon()) { |
32b13758 | 370 | AliMixture(53,"XeCO2", aXeCO2, zXeCO2, dgmXe, -3, wXeCO2); |
f2979d08 | 371 | } |
a076fc2f | 372 | else if (AliTRDCommonParam::Instance()->IsArgon()) { |
f2979d08 | 373 | AliInfo("Gas mixture: Ar C02 (80/20)"); |
32b13758 | 374 | AliMixture(53,"ArCO2", aArCO2, zArCO2, dgmAr, -3, wArCO2); |
f2979d08 | 375 | } |
376 | else { | |
377 | AliFatal("Wrong gas mixture"); | |
378 | exit(1); | |
379 | } | |
32b13758 | 380 | // G10 |
381 | Float_t aG10[4] = { 1.0079, 12.011 , 15.9994, 28.086 }; | |
382 | Float_t zG10[4] = { 1.0 , 6.0 , 8.0 , 14.0 }; | |
383 | Float_t wG10[4] = { 0.023 , 0.194 , 0.443 , 0.340 }; | |
384 | Float_t dG10 = 2.0; | |
385 | AliMixture(54,"G10", aG10, zG10, dG10, 4,wG10 ); | |
386 | // Water | |
387 | Float_t awa[2] = { 1.0079, 15.9994 }; | |
388 | Float_t zwa[2] = { 1.0 , 8.0 }; | |
389 | Float_t wwa[2] = { 2.0 , 1.0 }; | |
390 | Float_t dwa = 1.0; | |
391 | AliMixture(55,"Water", awa, zwa, dwa, -2,wwa ); | |
392 | // Rohacell (C5H8O2), X0 = 535.005cm | |
393 | Float_t arh[3] = { 12.011 , 1.0079, 15.9994 }; | |
394 | Float_t zrh[3] = { 6.0 , 1.0 , 8.0 }; | |
395 | Float_t wrh[3] = { 5.0 , 8.0 , 2.0 }; | |
396 | Float_t drh = 0.075; | |
397 | AliMixture(56,"Rohacell", arh, zrh, drh, -3,wrh ); | |
398 | // Epoxy (C18H19O3) | |
399 | Float_t aEpoxy[3] = { 15.9994, 1.0079, 12.011 }; | |
400 | Float_t zEpoxy[3] = { 8.0 , 1.0 , 6.0 }; | |
401 | Float_t wEpoxy[3] = { 3.0 , 19.0 , 18.0 }; | |
402 | Float_t dEpoxy = 1.8 ; | |
403 | AliMixture(57,"Epoxy", aEpoxy,zEpoxy,dEpoxy,-3,wEpoxy); | |
404 | // Araldite, low density epoxy (C18H19O3) | |
405 | Float_t aAral[3] = { 15.9994, 1.0079, 12.011 }; | |
406 | Float_t zAral[3] = { 8.0 , 1.0 , 6.0 }; | |
407 | Float_t wAral[3] = { 3.0 , 19.0 , 18.0 }; | |
408 | Float_t dAral = 1.12; // Hardener: 1.15, epoxy: 1.1, mixture: 1/2 | |
409 | AliMixture(58,"Araldite", aAral, zAral, dAral, -3,wAral ); | |
410 | // Mylar | |
411 | Float_t aMy[3] = { 12.011 , 1.0 , 15.9994 }; | |
412 | Float_t zMy[3] = { 6.0 , 1.0 , 8.0 }; | |
413 | Float_t wMy[3] = { 5.0 , 4.0 , 2.0 }; | |
414 | Float_t dMy = 1.39; | |
415 | AliMixture(59,"Mylar", aMy, zMy, dMy, -3,wMy ); | |
416 | // Polypropylene (C3H6) for radiator fibers | |
417 | Float_t app[2] = { 12.011 , 1.0079 }; | |
418 | Float_t zpp[2] = { 6.0 , 1.0 }; | |
419 | Float_t wpp[2] = { 3.0 , 6.0 }; | |
420 | Float_t dpp = 0.068; | |
421 | AliMixture(60,"Polypropylene",app, zpp, dpp, -2,wpp ); | |
422 | // Aramide for honeycomb | |
423 | Float_t aAra[4] = { 1.0079, 12.011 , 15.9994, 14.0067 }; | |
424 | Float_t zAra[4] = { 1.0 , 6.0 , 8.0 , 7.0 }; | |
425 | Float_t wAra[4] = { 3.0 , 1.0 , 1.0 , 1.0 }; | |
426 | Float_t dAra = 0.032; | |
427 | AliMixture(61,"Aramide", aAra, zAra, dAra, -4,wAra ); | |
428 | // GFK for Wacosit (Epoxy + Si) | |
429 | Float_t aGFK[4] = { 1.0079, 12.011 , 15.9994, 28.086 }; | |
430 | Float_t zGFK[4] = { 1.0 , 6.0 , 8.0 , 14.0 }; | |
431 | Float_t wGFK[4] = { 0.0445, 0.5031, 0.1118, 0.340 }; | |
432 | Float_t dGFK = 2.0; | |
433 | AliMixture(62,"GFK", aGFK, zGFK, dGFK, 4,wGFK ); | |
3dac2b2d | 434 | |
d3f347ff | 435 | ////////////////////////////////////////////////////////////////////////// |
fe4da5cc | 436 | // Tracking Media Parameters |
d3f347ff | 437 | ////////////////////////////////////////////////////////////////////////// |
438 | ||
32b13758 | 439 | // General tracking parameter |
440 | Float_t tmaxfd = -10.0; | |
441 | Float_t stemax = -1.0e10; | |
442 | Float_t deemax = -0.1; | |
443 | Float_t epsil = 1.0e-4; | |
444 | Float_t stmin = -0.001; | |
445 | ||
d3f347ff | 446 | // Al Frame |
0c5a8090 | 447 | AliMedium( 1,"Al Frame" , 1,0,isxfld,sxmgmx |
448 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
d3f347ff | 449 | // Air |
32b13758 | 450 | AliMedium( 2,"Air" ,51,0,isxfld,sxmgmx |
0c5a8090 | 451 | ,tmaxfd,stemax,deemax,epsil,stmin); |
452 | // Wires | |
32b13758 | 453 | AliMedium( 3,"Wires" , 2,0,isxfld,sxmgmx |
0c5a8090 | 454 | ,tmaxfd,stemax,deemax,epsil,stmin); |
455 | // All other ROB materials (caps, etc.) | |
32b13758 | 456 | AliMedium( 4,"ROB Other" , 2,0,isxfld,sxmgmx |
0c5a8090 | 457 | ,tmaxfd,stemax,deemax,epsil,stmin); |
d3f347ff | 458 | // Cu pads |
32b13758 | 459 | AliMedium( 5,"Padplane" , 2,1,isxfld,sxmgmx |
0c5a8090 | 460 | ,tmaxfd,stemax,deemax,epsil,stmin); |
d3f347ff | 461 | // Fee + cables |
32b13758 | 462 | AliMedium( 6,"Readout" , 2,0,isxfld,sxmgmx |
0c5a8090 | 463 | ,tmaxfd,stemax,deemax,epsil,stmin); |
32b13758 | 464 | // C frame (Wacosit) |
465 | AliMedium( 7,"Wacosit" ,62,0,isxfld,sxmgmx | |
466 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
0c5a8090 | 467 | // INOX of cooling bus bars |
32b13758 | 468 | AliMedium( 8,"Cooling bus", 7,0,isxfld,sxmgmx |
0c5a8090 | 469 | ,tmaxfd,stemax,deemax,epsil,stmin); |
3dac2b2d | 470 | // Gas-mixture (Xe/CO2) |
32b13758 | 471 | AliMedium( 9,"Gas-mix" ,53,1,isxfld,sxmgmx |
0c5a8090 | 472 | ,tmaxfd,stemax,deemax,epsil,stmin); |
32b13758 | 473 | // Honeycomb |
474 | AliMedium(10,"Honeycomb" ,61,0,isxfld,sxmgmx | |
0c5a8090 | 475 | ,tmaxfd,stemax,deemax,epsil,stmin); |
476 | // Araldite glue | |
32b13758 | 477 | AliMedium(11,"Glue" ,58,0,isxfld,sxmgmx |
0c5a8090 | 478 | ,tmaxfd,stemax,deemax,epsil,stmin); |
d3f347ff | 479 | // G10-plates |
32b13758 | 480 | AliMedium(13,"G10-plates" ,54,0,isxfld,sxmgmx |
0c5a8090 | 481 | ,tmaxfd,stemax,deemax,epsil,stmin); |
d3f347ff | 482 | // Cooling water |
32b13758 | 483 | AliMedium(14,"Water" ,55,0,isxfld,sxmgmx |
0c5a8090 | 484 | ,tmaxfd,stemax,deemax,epsil,stmin); |
32b13758 | 485 | // Rohacell for the radiator |
486 | AliMedium(15,"Rohacell" ,56,0,isxfld,sxmgmx | |
0c5a8090 | 487 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 488 | // Al layer in MCMs |
0c5a8090 | 489 | AliMedium(16,"MCM-Al" , 1,0,isxfld,sxmgmx |
490 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
16bf9884 | 491 | // Sn layer in MCMs |
32b13758 | 492 | AliMedium(17,"MCM-Sn" , 5,0,isxfld,sxmgmx |
0c5a8090 | 493 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 494 | // Cu layer in MCMs |
32b13758 | 495 | AliMedium(18,"MCM-Cu" , 2,0,isxfld,sxmgmx |
0c5a8090 | 496 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 497 | // G10 layer in MCMs |
32b13758 | 498 | AliMedium(19,"MCM-G10" ,54,0,isxfld,sxmgmx |
0c5a8090 | 499 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 500 | // Si in readout chips |
32b13758 | 501 | AliMedium(20,"Chip-Si" , 6,0,isxfld,sxmgmx |
0c5a8090 | 502 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 503 | // Epoxy in readout chips |
32b13758 | 504 | AliMedium(21,"Chip-Ep" ,57,0,isxfld,sxmgmx |
0c5a8090 | 505 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 506 | // PE in connectors |
32b13758 | 507 | AliMedium(22,"Conn-PE" ,52,0,isxfld,sxmgmx |
0c5a8090 | 508 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 509 | // Cu in connectors |
32b13758 | 510 | AliMedium(23,"Chip-Cu" , 2,0,isxfld,sxmgmx |
0c5a8090 | 511 | ,tmaxfd,stemax,deemax,epsil,stmin); |
16bf9884 | 512 | // Al of cooling pipes |
0c5a8090 | 513 | AliMedium(24,"Cooling" , 1,0,isxfld,sxmgmx |
514 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
73ae7b59 | 515 | // Cu in services |
32b13758 | 516 | AliMedium(25,"Serv-Cu" , 2,0,isxfld,sxmgmx |
517 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
518 | // Carbon fiber mat | |
519 | AliMedium(26,"Carbon" , 4,0,isxfld,sxmgmx | |
520 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
521 | // Mylar foil | |
522 | AliMedium(27,"Mylar" ,59,0,isxfld,sxmgmx | |
523 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
524 | // Polypropylene fibers | |
525 | AliMedium(28,"Fiber" ,60,0,isxfld,sxmgmx | |
0c5a8090 | 526 | ,tmaxfd,stemax,deemax,epsil,stmin); |
d3f347ff | 527 | |
793ff80c | 528 | // Save the density values for the TRD absorbtion |
0c5a8090 | 529 | Float_t dmy = 1.39; |
793ff80c | 530 | fFoilDensity = dmy; |
a076fc2f | 531 | if (AliTRDCommonParam::Instance()->IsXenon()) { |
f2979d08 | 532 | fGasDensity = dgmXe; |
533 | fGasNobleFraction = fxc; | |
534 | } | |
a076fc2f | 535 | else if (AliTRDCommonParam::Instance()->IsArgon()) { |
f2979d08 | 536 | fGasDensity = dgmAr; |
537 | fGasNobleFraction = fac; | |
538 | } | |
793ff80c | 539 | |
fe4da5cc | 540 | } |
fe4da5cc | 541 | |
542 | //_____________________________________________________________________________ | |
543 | void AliTRD::Init() | |
544 | { | |
545 | // | |
851d3db9 | 546 | // Initialize the TRD detector after the geometry has been created |
fe4da5cc | 547 | // |
82bbf98a | 548 | |
45160b1f | 549 | AliDebug(1,"++++++++++++++++++++++++++++++++++++++++++++++"); |
5c7f4665 | 550 | |
bd0f8685 | 551 | if (fGeometry->IsVersion() != 1) { |
45160b1f | 552 | AliError("Not a valid geometry"); |
d37eec5e | 553 | } |
5f06bf41 | 554 | |
7235aed2 | 555 | // Special tracking options for charged particles for XeCO2 |
5f06bf41 | 556 | gMC->Gstpar((* fIdtmed)[9],"DRAY" , 1.0); |
557 | gMC->Gstpar((* fIdtmed)[9],"STRA" , 1.0); | |
558 | gMC->Gstpar((* fIdtmed)[9],"LOSS" ,13.0); // Specific energy loss | |
e8ec3430 | 559 | // Parameters specific to Fluka |
560 | //gMC->Gstpar((* fIdtmed)[9],"PRIMIO_E",23.53); // 1st ionisation potential | |
561 | //gMC->Gstpar((* fIdtmed)[9],"PRIMIO_N",19.344431); // Number of primaries | |
5f06bf41 | 562 | |
5c7f4665 | 563 | } |
564 | ||
6244debe | 565 | //_____________________________________________________________________________ |
566 | void AliTRD::ResetDigits() | |
567 | { | |
568 | // | |
abaf1f1d | 569 | // Reset number of digits and the digits array for this detector |
6244debe | 570 | // |
571 | ||
abaf1f1d | 572 | fNdigits = 0; |
030b4415 | 573 | |
574 | if (fDigits) { | |
575 | fDigits->Clear(); | |
576 | } | |
6244debe | 577 | |
578 | } | |
579 | ||
5c7f4665 | 580 | //_____________________________________________________________________________ |
581 | void AliTRD::SetTreeAddress() | |
582 | { | |
583 | // | |
584 | // Set the branch addresses for the trees. | |
585 | // | |
586 | ||
030b4415 | 587 | if (fLoader->TreeH() && |
588 | (fHits == 0x0)) { | |
a328fff9 | 589 | fHits = new TClonesArray("AliTRDhit",405); |
332e9569 | 590 | } |
a328fff9 | 591 | AliDetector::SetTreeAddress(); |
332e9569 | 592 | |
fe4da5cc | 593 | } |
594 | ||
68119ad1 | 595 | //_____________________________________________________________________________ |
596 | Bool_t AliTRD::Raw2SDigits(AliRawReader *rawReader) | |
597 | { | |
598 | // | |
599 | // Converts RAW data to SDigits | |
600 | // | |
601 | ||
602 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); | |
603 | if (!loader) { | |
604 | AliError("Can not get TRD loader from Run Loader"); | |
605 | return kFALSE; | |
606 | } | |
607 | ||
608 | TTree *tree = 0; | |
609 | tree = loader->TreeS(); | |
610 | if (!tree) { | |
611 | loader->MakeTree("S"); | |
612 | tree = loader->TreeS(); | |
613 | } | |
614 | ||
e7539003 | 615 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); |
616 | ||
68119ad1 | 617 | AliTRDrawData *rawdata = new AliTRDrawData(); |
e7539003 | 618 | AliTRDdigitsManager *digitsManager = rawdata->Raw2Digits(rawReader); |
619 | ||
620 | // Create the s-digits manager | |
621 | AliTRDdigitsManager *sdigitsManager = new AliTRDdigitsManager(); | |
622 | sdigitsManager->SetSDigits(kTRUE); | |
623 | sdigitsManager->CreateArrays(); | |
624 | ||
68119ad1 | 625 | if (sdigitsManager) { |
e7539003 | 626 | |
627 | // Convert the digits into s-digits | |
628 | digitizer.Digits2SDigits(digitsManager,sdigitsManager); | |
629 | ||
68119ad1 | 630 | sdigitsManager->MakeBranch(tree); |
631 | sdigitsManager->WriteDigits(); | |
e7539003 | 632 | |
633 | delete digitsManager; | |
634 | ||
68119ad1 | 635 | return kTRUE; |
e7539003 | 636 | |
68119ad1 | 637 | } |
638 | else { | |
e7539003 | 639 | |
68119ad1 | 640 | return kFALSE; |
e7539003 | 641 | |
68119ad1 | 642 | } |
643 | ||
644 | } | |
645 | ||
9c7c9ec1 | 646 | //_____________________________________________________________________________ |
e7539003 | 647 | AliLoader *AliTRD::MakeLoader(const Char_t *topfoldername) |
9c7c9ec1 | 648 | { |
e7539003 | 649 | // |
650 | // Create a loader for the TRD tracklets | |
651 | // | |
652 | ||
9c7c9ec1 | 653 | fLoader = new AliLoader(GetName(),topfoldername); |
654 | ||
655 | AliInfo("Adding Tracklets-loader"); | |
e7539003 | 656 | |
657 | AliDataLoader *dl = new AliDataLoader("TRD.Tracklets.root" | |
658 | ,"tracklets" | |
659 | ,"tracklets"); | |
9c7c9ec1 | 660 | fLoader->AddDataLoader(dl); |
e7539003 | 661 | |
662 | dl = new AliDataLoader("TRD.GtuTracks.root" | |
663 | ,"gtutracks" | |
664 | ,"gtutracks"); | |
c8b1590d | 665 | fLoader->AddDataLoader(dl); |
e7539003 | 666 | |
9c7c9ec1 | 667 | return fLoader; |
e7539003 | 668 | |
9c7c9ec1 | 669 | } |
670 | ||
dd9a6ee3 | 671 | //_____________________________________________________________________________ |
672 | AliTRD &AliTRD::operator=(const AliTRD &trd) | |
673 | { | |
674 | // | |
675 | // Assignment operator | |
676 | // | |
677 | ||
0c5a8090 | 678 | if (this != &trd) { |
679 | ((AliTRD &) trd).Copy(*this); | |
680 | } | |
030b4415 | 681 | |
dd9a6ee3 | 682 | return *this; |
683 | ||
68119ad1 | 684 | } |