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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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Transition Radiation Detector // | |
21 | // This class contains the basic functions for the Transition Radiation // | |
22 | // Detector. // | |
23 | // // | |
24 | /////////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | #include <stdlib.h> | |
27 | #include <Riostream.h> | |
28 | ||
29 | #include <TClonesArray.h> | |
30 | #include <TFile.h> | |
31 | #include <TGeometry.h> | |
32 | #include <TLorentzVector.h> | |
33 | #include <TMath.h> | |
34 | #include <TNode.h> | |
35 | #include <TPGON.h> | |
36 | #include <TParticle.h> | |
37 | #include <TROOT.h> | |
38 | #include <TTree.h> | |
39 | #include <TVirtualMC.h> | |
40 | ||
41 | #include "AliConst.h" | |
42 | #include "AliDigit.h" | |
43 | #include "AliLoader.h" | |
44 | #include "AliLog.h" | |
45 | #include "AliMC.h" | |
46 | #include "AliMagF.h" | |
47 | #include "AliRun.h" | |
48 | #include "AliTrackReference.h" | |
49 | #include "AliRawReader.h" | |
50 | ||
51 | #include "AliTRD.h" | |
52 | #include "AliTRDdigit.h" | |
53 | #include "AliTRDdigitizer.h" | |
54 | #include "AliTRDdigitsManager.h" | |
55 | #include "AliTRDgeometry.h" | |
56 | #include "AliTRDhit.h" | |
57 | #include "AliTRDpoints.h" | |
58 | #include "AliTRDrawData.h" | |
59 | #include "AliTRDSimParam.h" | |
60 | #include "AliTRDRecParam.h" | |
61 | #include "AliTRDCommonParam.h" | |
62 | #include "AliTRDcalibDB.h" | |
63 | ||
64 | ClassImp(AliTRD) | |
65 | ||
66 | //_____________________________________________________________________________ | |
67 | AliTRD::AliTRD() | |
68 | :AliDetector() | |
69 | ,fGeometry(0) | |
70 | ,fGasDensity(0) | |
71 | ,fFoilDensity(0) | |
72 | ,fDrawTR(0) | |
73 | ,fDisplayType(0) | |
74 | { | |
75 | // | |
76 | // Default constructor | |
77 | // | |
78 | ||
79 | } | |
80 | ||
81 | //_____________________________________________________________________________ | |
82 | AliTRD::AliTRD(const char *name, const char *title) | |
83 | :AliDetector(name,title) | |
84 | ,fGeometry(0) | |
85 | ,fGasDensity(0) | |
86 | ,fFoilDensity(0) | |
87 | ,fDrawTR(0) | |
88 | ,fDisplayType(0) | |
89 | { | |
90 | // | |
91 | // Standard constructor for the TRD | |
92 | // | |
93 | ||
94 | // Check that FRAME is there otherwise we have no place where to put TRD | |
95 | AliModule *frame = gAlice->GetModule("FRAME"); | |
96 | if (!frame) { | |
97 | AliError("TRD needs FRAME to be present\n"); | |
98 | exit(1); | |
99 | } | |
100 | ||
101 | // Define the TRD geometry | |
102 | if ((frame->IsVersion() == 0) || | |
103 | (frame->IsVersion() == 1)) { | |
104 | fGeometry = new AliTRDgeometry(); | |
105 | } | |
106 | else { | |
107 | AliError("Could not find valid FRAME version\n"); | |
108 | exit(1); | |
109 | } | |
110 | ||
111 | // Allocate the hit array | |
112 | fHits = new TClonesArray("AliTRDhit",405); | |
113 | gAlice->GetMCApp()->AddHitList(fHits); | |
114 | ||
115 | } | |
116 | ||
117 | //_____________________________________________________________________________ | |
118 | AliTRD::~AliTRD() | |
119 | { | |
120 | // | |
121 | // TRD destructor | |
122 | // | |
123 | ||
124 | if (fGeometry) { | |
125 | delete fGeometry; | |
126 | fGeometry = 0; | |
127 | } | |
128 | ||
129 | if (fHits) { | |
130 | delete fHits; | |
131 | fHits = 0; | |
132 | } | |
133 | ||
134 | } | |
135 | ||
136 | //_____________________________________________________________________________ | |
137 | void AliTRD::Hits2Digits() | |
138 | { | |
139 | // | |
140 | // Create digits | |
141 | // | |
142 | ||
143 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); | |
144 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); | |
145 | ||
146 | // Initialization | |
147 | digitizer.InitDetector(); | |
148 | ||
149 | if (!fLoader->TreeH()) { | |
150 | fLoader->LoadHits("read"); | |
151 | } | |
152 | fLoader->LoadDigits("recreate"); | |
153 | ||
154 | AliRunLoader *runLoader = fLoader->GetRunLoader(); | |
155 | ||
156 | for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) { | |
157 | runLoader->GetEvent(iEvent); | |
158 | digitizer.Open(runLoader,iEvent); | |
159 | digitizer.MakeDigits(); | |
160 | digitizer.WriteDigits(); | |
161 | } | |
162 | ||
163 | fLoader->UnloadHits(); | |
164 | fLoader->UnloadDigits(); | |
165 | ||
166 | } | |
167 | ||
168 | //_____________________________________________________________________________ | |
169 | void AliTRD::Hits2SDigits() | |
170 | { | |
171 | // | |
172 | // Create summable digits | |
173 | // | |
174 | ||
175 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); | |
176 | // For the summable digits | |
177 | digitizer.SetSDigits(kTRUE); | |
178 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); | |
179 | ||
180 | // Initialization | |
181 | digitizer.InitDetector(); | |
182 | ||
183 | if (!fLoader->TreeH()) { | |
184 | fLoader->LoadHits("read"); | |
185 | } | |
186 | fLoader->LoadSDigits("recreate"); | |
187 | ||
188 | AliRunLoader *runLoader = fLoader->GetRunLoader(); | |
189 | ||
190 | for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) { | |
191 | runLoader->GetEvent(iEvent); | |
192 | digitizer.Open(runLoader,iEvent); | |
193 | digitizer.MakeDigits(); | |
194 | digitizer.WriteDigits(); | |
195 | } | |
196 | ||
197 | fLoader->UnloadHits(); | |
198 | fLoader->UnloadSDigits(); | |
199 | ||
200 | } | |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | AliDigitizer *AliTRD::CreateDigitizer(AliRunDigitizer *manager) const | |
204 | { | |
205 | // | |
206 | // Creates a new digitizer object | |
207 | // | |
208 | ||
209 | return new AliTRDdigitizer(manager); | |
210 | ||
211 | } | |
212 | ||
213 | //_____________________________________________________________________________ | |
214 | void AliTRD::SDigits2Digits() | |
215 | { | |
216 | // | |
217 | // Create final digits from summable digits | |
218 | // | |
219 | ||
220 | // Create the TRD digitizer | |
221 | AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class"); | |
222 | AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel()); | |
223 | ||
224 | // Set the parameter | |
225 | digitizer.SetEvent(gAlice->GetEvNumber()); | |
226 | ||
227 | // Initialization | |
228 | digitizer.InitDetector(); | |
229 | ||
230 | // Read the s-digits via digits manager | |
231 | AliTRDdigitsManager sdigitsManager; | |
232 | ||
233 | AliLog::SetClassDebugLevel("TRDdigitisManager",AliDebugLevel()); | |
234 | sdigitsManager.SetSDigits(kTRUE); | |
235 | sdigitsManager.CreateArrays(); | |
236 | ||
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 | } | |
246 | ||
247 | sdigitsManager.ReadDigits(fLoader->TreeS()); | |
248 | ||
249 | // Add the s-digits to the input list | |
250 | digitizer.AddSDigitsManager(&sdigitsManager); | |
251 | ||
252 | // Convert the s-digits to normal digits | |
253 | digitizer.SDigits2Digits(); | |
254 | ||
255 | // Store the digits | |
256 | if (!fLoader->TreeD()) { | |
257 | fLoader->MakeTree("D"); | |
258 | } | |
259 | if (digitizer.MakeBranch(fLoader->TreeD())){ | |
260 | digitizer.WriteDigits(); | |
261 | } | |
262 | ||
263 | } | |
264 | ||
265 | //_____________________________________________________________________________ | |
266 | void AliTRD::Digits2Raw() | |
267 | { | |
268 | // | |
269 | // Convert digits of the current event to raw data | |
270 | // | |
271 | ||
272 | fLoader->LoadDigits(); | |
273 | TTree *digits = fLoader->TreeD(); | |
274 | if (!digits) { | |
275 | AliError("No digits tree"); | |
276 | return; | |
277 | } | |
278 | ||
279 | AliTRDrawData rawWriter; | |
280 | if (!rawWriter.Digits2Raw(digits)) { | |
281 | AliError("The raw writer could not load the digits tree"); | |
282 | } | |
283 | ||
284 | fLoader->UnloadDigits(); | |
285 | ||
286 | } | |
287 | ||
288 | //_____________________________________________________________________________ | |
289 | void AliTRD::AddHit(Int_t track, Int_t det, Float_t *hits, Int_t q | |
290 | , Float_t time, Bool_t inDrift) | |
291 | { | |
292 | // | |
293 | // Add a hit for the TRD | |
294 | // | |
295 | ||
296 | TClonesArray &lhits = *fHits; | |
297 | AliTRDhit *hit = new(lhits[fNhits++]) AliTRDhit(fIshunt | |
298 | ,track | |
299 | ,det | |
300 | ,hits | |
301 | ,q | |
302 | ,time); | |
303 | ||
304 | if (inDrift) { | |
305 | hit->SetDrift(); | |
306 | } | |
307 | else { | |
308 | hit->SetAmplification(); | |
309 | } | |
310 | ||
311 | if (q < 0) { | |
312 | hit->SetTRphoton(); | |
313 | } | |
314 | ||
315 | } | |
316 | ||
317 | //_____________________________________________________________________________ | |
318 | void AliTRD::BuildGeometry() | |
319 | { | |
320 | // | |
321 | // Create the ROOT TNode geometry for the TRD | |
322 | // | |
323 | ||
324 | TNode *node; | |
325 | TNode *top; | |
326 | TPGON *pgon; | |
327 | ||
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 | ||
334 | Float_t rmin; | |
335 | Float_t rmax; | |
336 | Float_t zmax1; | |
337 | Float_t zmax2; | |
338 | ||
339 | Int_t iPlan; | |
340 | ||
341 | const Int_t kColorTRD = 46; | |
342 | ||
343 | // Find the top node alice | |
344 | top = gAlice->GetGeometry()->GetNode("alice"); | |
345 | ||
346 | if (fDisplayType == 0) { | |
347 | ||
348 | pgon = new TPGON("S_TRD","TRD","void",0,360,AliTRDgeometry::Nsect(),4); | |
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); | |
355 | top->cd(); | |
356 | node = new TNode("TRD","TRD","S_TRD",0,0,0,""); | |
357 | node->SetLineColor(kColorTRD); | |
358 | fNodes->Add(node); | |
359 | ||
360 | } | |
361 | else if (fDisplayType == 1) { | |
362 | ||
363 | Char_t name[7]; | |
364 | ||
365 | Float_t slope = (kZmax1 - kZmax2) / (kRmax - kRmin); | |
366 | ||
367 | rmin = kRmin + AliTRDgeometry::CraHght(); | |
368 | rmax = rmin + AliTRDgeometry::CdrHght(); | |
369 | ||
370 | Float_t thickness = rmin - kRmin; | |
371 | zmax2 = kZmax2 + slope * thickness; | |
372 | zmax1 = zmax2 + slope * AliTRDgeometry::DrThick(); | |
373 | ||
374 | for (iPlan = 0; iPlan < AliTRDgeometry::Nplan(); iPlan++) { | |
375 | ||
376 | sprintf(name,"S_TR1%d",iPlan); | |
377 | pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsect(),4); | |
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(); | |
396 | rmin = kRmin + thickness; | |
397 | rmax = rmin + AliTRDgeometry::AmThick(); | |
398 | zmax2 = kZmax2 + slope * thickness; | |
399 | zmax1 = zmax2 + slope * AliTRDgeometry::AmThick(); | |
400 | ||
401 | for (iPlan = 0; iPlan < AliTRDgeometry::Nplan(); iPlan++) { | |
402 | ||
403 | sprintf(name,"S_TR2%d",iPlan); | |
404 | pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsect(),4); | |
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 | ||
422 | } | |
423 | ||
424 | } | |
425 | ||
426 | //_____________________________________________________________________________ | |
427 | void AliTRD::CreateGeometry() | |
428 | { | |
429 | // | |
430 | // Creates the volumes for the TRD chambers | |
431 | // | |
432 | ||
433 | // Check that FRAME is there otherwise we have no place where to put the TRD | |
434 | AliModule *frame = gAlice->GetModule("FRAME"); | |
435 | if (!frame) { | |
436 | AliFatal("The TRD needs the FRAME to be defined first"); | |
437 | } | |
438 | ||
439 | fGeometry->CreateGeometry(fIdtmed->GetArray() - 1299); | |
440 | ||
441 | } | |
442 | ||
443 | //_____________________________________________________________________________ | |
444 | void AliTRD::CreateMaterials() | |
445 | { | |
446 | // | |
447 | // Create the materials for the TRD | |
448 | // | |
449 | ||
450 | Int_t isxfld = gAlice->Field()->Integ(); | |
451 | Float_t sxmgmx = gAlice->Field()->Max(); | |
452 | ||
453 | // For polyethilene (CH2) | |
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; | |
458 | ||
459 | // For CO2 | |
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 }; | |
463 | Float_t dco = 0.00186; | |
464 | ||
465 | // For water | |
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; | |
470 | ||
471 | // For isobutane (C4H10) | |
472 | Float_t ais[2] = { 12.011 , 1.0079 }; | |
473 | Float_t zis[2] = { 6.0 , 1.0 }; | |
474 | Float_t wis[2] = { 4.0 , 10.0 }; | |
475 | Float_t dis = 0.00267; | |
476 | ||
477 | // For plexiglas (C5H8O2) | |
478 | Float_t apg[3] = { 12.011 , 1.0079, 15.9994 }; | |
479 | Float_t zpg[3] = { 6.0 , 1.0 , 8.0 }; | |
480 | Float_t wpg[3] = { 5.0 , 8.0 , 2.0 }; | |
481 | Float_t dpg = 1.18; | |
482 | ||
483 | // For epoxy (C18H19O3) | |
484 | Float_t aEpoxy[3] = { 15.9994, 1.0079, 12.011 }; | |
485 | Float_t zEpoxy[3] = { 8.0 , 1.0 , 6.0 }; | |
486 | Float_t wEpoxy[3] = { 3.0 , 19.0 , 18.0 }; | |
487 | Float_t dEpoxy = 1.8 ; | |
488 | ||
489 | // For Araldite, low density epoxy (C18H19O3) | |
490 | Float_t aAral[3] = { 15.9994, 1.0079, 12.011 }; | |
491 | Float_t zAral[3] = { 8.0 , 1.0 , 6.0 }; | |
492 | Float_t wAral[3] = { 3.0 , 19.0 , 18.0 }; | |
493 | Float_t dAral = 1.05; | |
494 | ||
495 | // For air | |
496 | Float_t aAir[4] = { 12.011 , 14.0 , 15.9994 , 36.0 }; | |
497 | Float_t zAir[4] = { 6.0 , 7.0 , 8.0 , 18.0 }; | |
498 | Float_t wAir[4] = { 0.000124, 0.755267, 0.231781, 0.012827 }; | |
499 | Float_t dAir = 1.20479e-03; | |
500 | ||
501 | // For G10 | |
502 | Float_t aG10[4] = { 1.0079 , 12.011 , 15.9994 , 28.086 }; | |
503 | Float_t zG10[4] = { 1.0 , 6.0 , 8.0 , 14.0 }; | |
504 | Float_t wG10[4] = { 0.15201 , 0.10641 , 0.49444 , 0.24714 }; | |
505 | Float_t dG10 = 1.7; | |
506 | ||
507 | // For Xe/CO2-gas-mixture | |
508 | Float_t aXeCO2[3] = { 131.29 , 12.0107 , 15.9994 }; | |
509 | Float_t zXeCO2[3] = { 54.0 , 6.0 , 8.0 }; | |
510 | Float_t wXeCO2[3] = { 8.5 , 1.5 , 3.0 }; | |
511 | // Xe-content of the Xe/CO2-mixture (85% / 15%) | |
512 | Float_t fxc = 0.85; | |
513 | Float_t dxe = 0.00549; | |
514 | Float_t dgm = fxc * dxe + (1.0 - fxc) * dco; | |
515 | ||
516 | // General tracking parameter | |
517 | Float_t tmaxfd = -10.0; | |
518 | Float_t stemax = -1.0e10; | |
519 | Float_t deemax = -0.1; | |
520 | Float_t epsil = 1.0e-4; | |
521 | Float_t stmin = -0.001; | |
522 | ||
523 | ////////////////////////////////////////////////////////////////////////// | |
524 | // Define Materials | |
525 | ////////////////////////////////////////////////////////////////////////// | |
526 | ||
527 | AliMaterial( 1, "Al" , 26.98, 13.0, 2.7 , 8.9 , 37.2); | |
528 | AliMaterial( 4, "Xe" , 131.29, 54.0, dxe , 1546.16, 0.0); | |
529 | AliMaterial( 5, "Cu" , 63.54, 29.0, 8.96 , 1.43, 14.8); | |
530 | AliMaterial( 6, "C" , 12.01, 6.0, 2.265 , 18.8 , 74.4); | |
531 | AliMaterial(15, "Sn" , 118.71, 50.0, 7.31 , 1.21, 14.8); | |
532 | AliMaterial(16, "Si" , 28.09, 14.0, 2.33 , 9.36, 37.2); | |
533 | AliMaterial(18, "Fe" , 55.85, 26.0, 7.87 , 1.76, 14.8); | |
534 | ||
535 | // Mixtures | |
536 | AliMixture(2, "Air" , aAir, zAir, dAir, 4, wAir ); | |
537 | AliMixture(3, "Polyethilene", ape, zpe, dpe, -2, wpe ); | |
538 | AliMixture(8, "CO2", aco, zco, dco, -2, wco ); | |
539 | AliMixture(9, "Isobutane", ais, zis, dis, -2, wis ); | |
540 | AliMixture(10,"Gas mixture", aXeCO2, zXeCO2, dgm, -3, wXeCO2); | |
541 | AliMixture(12,"G10", aG10, zG10, dG10, 4, wG10 ); | |
542 | AliMixture(13,"Water", awa, zwa, dwa, -2, wwa ); | |
543 | AliMixture(14,"Plexiglas", apg, zpg, dpg, -3, wpg ); | |
544 | AliMixture(17,"Epoxy", aEpoxy, zEpoxy, dEpoxy, -3, wEpoxy); | |
545 | AliMixture(19,"Araldite", aAral, zAral, dAral, -3, wAral ); | |
546 | ||
547 | ////////////////////////////////////////////////////////////////////////// | |
548 | // Tracking Media Parameters | |
549 | ////////////////////////////////////////////////////////////////////////// | |
550 | ||
551 | // Al Frame | |
552 | AliMedium( 1,"Al Frame" , 1,0,isxfld,sxmgmx | |
553 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
554 | // Air | |
555 | AliMedium( 2,"Air" , 2,0,isxfld,sxmgmx | |
556 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
557 | // Wires | |
558 | AliMedium( 3,"Wires" , 5,0,isxfld,sxmgmx | |
559 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
560 | // All other ROB materials (caps, etc.) | |
561 | AliMedium( 4,"ROB Other" , 5,0,isxfld,sxmgmx | |
562 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
563 | // Cu pads | |
564 | AliMedium( 5,"Padplane" , 5,1,isxfld,sxmgmx | |
565 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
566 | // Fee + cables | |
567 | AliMedium( 6,"Readout" , 5,0,isxfld,sxmgmx | |
568 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
569 | // C frame | |
570 | AliMedium( 7,"C Frame" , 6,0,isxfld,sxmgmx | |
571 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
572 | // INOX of cooling bus bars | |
573 | AliMedium( 8,"Cooling bus",18,0,isxfld,sxmgmx | |
574 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
575 | // Gas-mixture (Xe/CO2) | |
576 | AliMedium( 9,"Gas-mix" ,10,1,isxfld,sxmgmx | |
577 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
578 | // Nomex-honeycomb | |
579 | AliMedium(10,"Nomex" ,12,0,isxfld,sxmgmx | |
580 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
581 | // Araldite glue | |
582 | AliMedium(11,"Glue" ,19,0,isxfld,sxmgmx | |
583 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
584 | // G10-plates | |
585 | AliMedium(13,"G10-plates" ,12,0,isxfld,sxmgmx | |
586 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
587 | // Cooling water | |
588 | AliMedium(14,"Water" ,13,0,isxfld,sxmgmx | |
589 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
590 | // Rohacell (plexiglas) for the radiator | |
591 | AliMedium(15,"Rohacell" ,14,0,isxfld,sxmgmx | |
592 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
593 | // Al layer in MCMs | |
594 | AliMedium(16,"MCM-Al" , 1,0,isxfld,sxmgmx | |
595 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
596 | // Sn layer in MCMs | |
597 | AliMedium(17,"MCM-Sn" ,15,0,isxfld,sxmgmx | |
598 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
599 | // Cu layer in MCMs | |
600 | AliMedium(18,"MCM-Cu" , 5,0,isxfld,sxmgmx | |
601 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
602 | // G10 layer in MCMs | |
603 | AliMedium(19,"MCM-G10" ,12,0,isxfld,sxmgmx | |
604 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
605 | // Si in readout chips | |
606 | AliMedium(20,"Chip-Si" ,16,0,isxfld,sxmgmx | |
607 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
608 | // Epoxy in readout chips | |
609 | AliMedium(21,"Chip-Ep" ,17,0,isxfld,sxmgmx | |
610 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
611 | // PE in connectors | |
612 | AliMedium(22,"Conn-PE" , 3,0,isxfld,sxmgmx | |
613 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
614 | // Cu in connectors | |
615 | AliMedium(23,"Chip-Cu" , 5,0,isxfld,sxmgmx | |
616 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
617 | // Al of cooling pipes | |
618 | AliMedium(24,"Cooling" , 1,0,isxfld,sxmgmx | |
619 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
620 | // Cu in services | |
621 | AliMedium(25,"Serv-Cu" , 5,0,isxfld,sxmgmx | |
622 | ,tmaxfd,stemax,deemax,epsil,stmin); | |
623 | ||
624 | // Save the density values for the TRD absorbtion | |
625 | Float_t dmy = 1.39; | |
626 | fFoilDensity = dmy; | |
627 | fGasDensity = dgm; | |
628 | ||
629 | } | |
630 | ||
631 | //_____________________________________________________________________________ | |
632 | void AliTRD::DrawModule() const | |
633 | { | |
634 | // | |
635 | // Draw a shaded view of the Transition Radiation Detector version 0 | |
636 | // | |
637 | ||
638 | // Set everything unseen | |
639 | gMC->Gsatt("*" ,"SEEN",-1); | |
640 | ||
641 | // Set ALIC mother transparent | |
642 | gMC->Gsatt("ALIC","SEEN", 0); | |
643 | ||
644 | // Set the volumes visible | |
645 | if (fGeometry->IsVersion() == 0) { | |
646 | gMC->Gsatt("B071","SEEN", 0); | |
647 | gMC->Gsatt("B074","SEEN", 0); | |
648 | gMC->Gsatt("B075","SEEN", 0); | |
649 | gMC->Gsatt("B077","SEEN", 0); | |
650 | gMC->Gsatt("BTR1","SEEN", 0); | |
651 | gMC->Gsatt("BTR2","SEEN", 0); | |
652 | gMC->Gsatt("BTR3","SEEN", 0); | |
653 | gMC->Gsatt("UTR1","SEEN", 0); | |
654 | gMC->Gsatt("UTR2","SEEN", 0); | |
655 | gMC->Gsatt("UTR3","SEEN", 0); | |
656 | } | |
657 | else { | |
658 | gMC->Gsatt("B071","SEEN", 0); | |
659 | gMC->Gsatt("B074","SEEN", 0); | |
660 | gMC->Gsatt("B075","SEEN", 0); | |
661 | gMC->Gsatt("B077","SEEN", 0); | |
662 | gMC->Gsatt("BTR1","SEEN", 0); | |
663 | gMC->Gsatt("BTR2","SEEN", 0); | |
664 | gMC->Gsatt("BTR3","SEEN", 0); | |
665 | gMC->Gsatt("UTR1","SEEN", 0); | |
666 | } | |
667 | ||
668 | gMC->Gdopt("hide", "on"); | |
669 | gMC->Gdopt("shad", "on"); | |
670 | gMC->Gsatt("*", "fill", 7); | |
671 | gMC->SetClipBox("."); | |
672 | gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000); | |
673 | gMC->DefaultRange(); | |
674 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021); | |
675 | gMC->Gdhead(1111, "Transition Radiation Detector"); | |
676 | gMC->Gdman(18, 4, "MAN"); | |
677 | ||
678 | } | |
679 | ||
680 | //_____________________________________________________________________________ | |
681 | void AliTRD::Init() | |
682 | { | |
683 | // | |
684 | // Initialize the TRD detector after the geometry has been created | |
685 | // | |
686 | ||
687 | AliDebug(1,"++++++++++++++++++++++++++++++++++++++++++++++"); | |
688 | ||
689 | if (fGeometry->IsVersion() != 1) { | |
690 | AliError("Not a valid geometry"); | |
691 | } | |
692 | ||
693 | // Special tracking options for charged particles for XeCO2 | |
694 | gMC->Gstpar((* fIdtmed)[9],"DRAY" , 1.0); | |
695 | gMC->Gstpar((* fIdtmed)[9],"STRA" , 1.0); | |
696 | gMC->Gstpar((* fIdtmed)[9],"LOSS" ,13.0); // Specific energy loss | |
697 | gMC->Gstpar((* fIdtmed)[9],"PRIMIO_E",23.53); // 1st ionisation potential | |
698 | gMC->Gstpar((* fIdtmed)[9],"PRIMIO_N",19.344431); // Number of primaries | |
699 | ||
700 | } | |
701 | ||
702 | //_____________________________________________________________________________ | |
703 | void AliTRD::LoadPoints(Int_t ) | |
704 | { | |
705 | // | |
706 | // Store x, y, z of all hits in memory. | |
707 | // Hit originating from TR photons are given a different color | |
708 | // | |
709 | ||
710 | if (fHits == 0) { | |
711 | return; | |
712 | } | |
713 | ||
714 | Int_t nhits = fHits->GetEntriesFast(); | |
715 | if (nhits == 0) { | |
716 | return; | |
717 | } | |
718 | ||
719 | Int_t tracks = gAlice->GetMCApp()->GetNtrack(); | |
720 | if (fPoints == 0) { | |
721 | fPoints = new TObjArray(tracks); | |
722 | } | |
723 | ||
724 | AliTRDhit *ahit; | |
725 | ||
726 | Int_t *ntrkE = new Int_t[tracks]; | |
727 | Int_t *ntrkT = new Int_t[tracks]; | |
728 | Int_t *limiE = new Int_t[tracks]; | |
729 | Int_t *limiT = new Int_t[tracks]; | |
730 | Float_t **coorE = new Float_t*[tracks]; | |
731 | Float_t **coorT = new Float_t*[tracks]; | |
732 | for(Int_t i = 0; i < tracks; i++) { | |
733 | ntrkE[i] = 0; | |
734 | ntrkT[i] = 0; | |
735 | coorE[i] = 0; | |
736 | coorT[i] = 0; | |
737 | limiE[i] = 0; | |
738 | limiT[i] = 0; | |
739 | } | |
740 | ||
741 | AliTRDpoints *points = 0; | |
742 | Float_t *fp = 0; | |
743 | Int_t trk; | |
744 | Int_t chunk = nhits / 4 + 1; | |
745 | ||
746 | // Loop over all the hits and store their position | |
747 | ahit = (AliTRDhit *) FirstHit(-1); | |
748 | while (ahit) { | |
749 | ||
750 | // dEdx hits | |
751 | if (ahit->GetCharge() >= 0) { | |
752 | ||
753 | trk = ahit->GetTrack(); | |
754 | if (ntrkE[trk] == limiE[trk]) { | |
755 | // Initialise a new track | |
756 | fp = new Float_t[3*(limiE[trk]+chunk)]; | |
757 | if (coorE[trk]) { | |
758 | memcpy(fp,coorE[trk],sizeof(Float_t)*3*limiE[trk]); | |
759 | delete [] coorE[trk]; | |
760 | } | |
761 | limiE[trk] += chunk; | |
762 | coorE[trk] = fp; | |
763 | } | |
764 | else { | |
765 | fp = coorE[trk]; | |
766 | } | |
767 | fp[3*ntrkE[trk] ] = ahit->X(); | |
768 | fp[3*ntrkE[trk]+1] = ahit->Y(); | |
769 | fp[3*ntrkE[trk]+2] = ahit->Z(); | |
770 | ntrkE[trk]++; | |
771 | ||
772 | } | |
773 | // TR photon hits | |
774 | else if ((ahit->GetCharge() < 0) && | |
775 | (fDrawTR)) { | |
776 | ||
777 | trk = ahit->GetTrack(); | |
778 | if (ntrkT[trk] == limiT[trk]) { | |
779 | // Initialise a new track | |
780 | fp = new Float_t[3*(limiT[trk]+chunk)]; | |
781 | if (coorT[trk]) { | |
782 | memcpy(fp,coorT[trk],sizeof(Float_t)*3*limiT[trk]); | |
783 | delete [] coorT[trk]; | |
784 | } | |
785 | limiT[trk] += chunk; | |
786 | coorT[trk] = fp; | |
787 | } | |
788 | else { | |
789 | fp = coorT[trk]; | |
790 | } | |
791 | fp[3*ntrkT[trk] ] = ahit->X(); | |
792 | fp[3*ntrkT[trk]+1] = ahit->Y(); | |
793 | fp[3*ntrkT[trk]+2] = ahit->Z(); | |
794 | ntrkT[trk]++; | |
795 | ||
796 | } | |
797 | ||
798 | ahit = (AliTRDhit *) NextHit(); | |
799 | ||
800 | } | |
801 | ||
802 | for (trk = 0; trk < tracks; ++trk) { | |
803 | ||
804 | if (ntrkE[trk] || ntrkT[trk]) { | |
805 | ||
806 | points = new AliTRDpoints(); | |
807 | points->SetDetector(this); | |
808 | points->SetParticle(trk); | |
809 | ||
810 | // Set the dEdx points | |
811 | if (ntrkE[trk]) { | |
812 | points->SetMarkerColor(kWhite); //PH This is the default color in TRD | |
813 | points->SetMarkerSize(1); //PH Default size=1 | |
814 | points->SetPolyMarker(ntrkE[trk],coorE[trk],1); //PH Default style=1 | |
815 | delete [] coorE[trk]; | |
816 | coorE[trk] = 0; | |
817 | } | |
818 | ||
819 | // Set the TR photon points | |
820 | if (ntrkT[trk]) { | |
821 | points->SetTRpoints(ntrkT[trk],coorT[trk]); | |
822 | delete [] coorT[trk]; | |
823 | coorT[trk] = 0; | |
824 | } | |
825 | ||
826 | fPoints->AddAt(points,trk); | |
827 | ||
828 | } | |
829 | ||
830 | } | |
831 | ||
832 | delete [] coorE; | |
833 | delete [] coorT; | |
834 | delete [] ntrkE; | |
835 | delete [] ntrkT; | |
836 | delete [] limiE; | |
837 | delete [] limiT; | |
838 | ||
839 | } | |
840 | ||
841 | //_____________________________________________________________________________ | |
842 | void AliTRD::MakeBranch(Option_t *option) | |
843 | { | |
844 | // | |
845 | // Create Tree branches for the TRD digits. | |
846 | // | |
847 | ||
848 | Int_t buffersize = 4000; | |
849 | Char_t branchname[15]; | |
850 | sprintf(branchname,"%s",GetName()); | |
851 | ||
852 | const Char_t *cD = strstr(option,"D"); | |
853 | ||
854 | AliDetector::MakeBranch(option); | |
855 | ||
856 | if (fDigits && | |
857 | gAlice->TreeD() && | |
858 | cD) { | |
859 | MakeBranchInTree(gAlice->TreeD(),branchname,&fDigits,buffersize,0); | |
860 | } | |
861 | ||
862 | } | |
863 | ||
864 | //_____________________________________________________________________________ | |
865 | void AliTRD::ResetDigits() | |
866 | { | |
867 | // | |
868 | // Reset number of digits and the digits array for this detector | |
869 | // | |
870 | ||
871 | fNdigits = 0; | |
872 | ||
873 | if (fDigits) { | |
874 | fDigits->Clear(); | |
875 | } | |
876 | ||
877 | } | |
878 | ||
879 | //_____________________________________________________________________________ | |
880 | void AliTRD::SetTreeAddress() | |
881 | { | |
882 | // | |
883 | // Set the branch addresses for the trees. | |
884 | // | |
885 | ||
886 | if (fLoader->TreeH() && | |
887 | (fHits == 0x0)) { | |
888 | fHits = new TClonesArray("AliTRDhit",405); | |
889 | } | |
890 | AliDetector::SetTreeAddress(); | |
891 | ||
892 | } | |
893 | ||
894 | //_____________________________________________________________________________ | |
895 | Bool_t AliTRD::Raw2SDigits(AliRawReader *rawReader) | |
896 | { | |
897 | // | |
898 | // Converts RAW data to SDigits | |
899 | // | |
900 | ||
901 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); | |
902 | if (!loader) { | |
903 | AliError("Can not get TRD loader from Run Loader"); | |
904 | return kFALSE; | |
905 | } | |
906 | ||
907 | TTree *tree = 0; | |
908 | tree = loader->TreeS(); | |
909 | if (!tree) { | |
910 | loader->MakeTree("S"); | |
911 | tree = loader->TreeS(); | |
912 | } | |
913 | ||
914 | AliTRDrawData *rawdata = new AliTRDrawData(); | |
915 | AliTRDdigitsManager *sdigitsManager = rawdata->Raw2Digits(rawReader); | |
916 | if (sdigitsManager) { | |
917 | sdigitsManager->SetSDigits(kTRUE); | |
918 | sdigitsManager->MakeBranch(tree); | |
919 | sdigitsManager->WriteDigits(); | |
920 | return kTRUE; | |
921 | } | |
922 | else { | |
923 | return kFALSE; | |
924 | } | |
925 | ||
926 | } | |
927 | ||
928 | //_____________________________________________________________________________ | |
929 | AliTRD &AliTRD::operator=(const AliTRD &trd) | |
930 | { | |
931 | // | |
932 | // Assignment operator | |
933 | // | |
934 | ||
935 | if (this != &trd) { | |
936 | ((AliTRD &) trd).Copy(*this); | |
937 | } | |
938 | ||
939 | return *this; | |
940 | ||
941 | } |