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f9721da6 | 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 | // (V-zero) detector version 3 as designed by the Lyon group // | |
21 | // All comments should be sent to Brigitte CHEYNIS : // | |
22 | // b.cheynis@ipnl.in2p3.fr // | |
23 | // Geometry of the 4th of december 2003 // | |
24 | // (now 3 rings instead of 5 rings as in previous versions -budget // | |
25 | // cuts !! - therefore changes in cell dimensions and offsets) // | |
26 | // previous ring 1 and ring 2 become now ring 1 // | |
27 | // previous ring 3 and ring 4 become now ring 2 // | |
28 | // previous ring 5 becomes now ring 3 - both for Left and Right // | |
29 | // V0R (now V0C) sits between Z values -89.4 and -84.9 cm // | |
30 | // V0L (now V0A) sits between Z values +350.0 and +352.0 cm // | |
31 | // New coordinate system has been implemented in october 2003 // | |
32 | // // | |
33 | ////////////////////////////////////////////////////////////////////// | |
34 | ||
35 | // --- Standard libraries --- | |
36 | #include <Riostream.h> | |
37 | #include <stdlib.h> | |
38 | #include <string.h> | |
39 | ||
40 | // --- ROOT libraries --- | |
41 | #include <TClonesArray.h> | |
f7a1cc68 | 42 | #include <TGeoGlobalMagField.h> |
f9721da6 | 43 | #include <TLorentzVector.h> |
44 | #include <TMath.h> | |
f9721da6 | 45 | #include <TObjectTable.h> |
f9721da6 | 46 | #include <TParticle.h> |
f7a1cc68 | 47 | #include <TVirtualMC.h> |
f9721da6 | 48 | |
49 | // --- AliRoot header files --- | |
f9721da6 | 50 | #include "AliConst.h" |
254ef8f1 | 51 | #include "AliLog.h" |
52 | #include "AliMC.h" | |
f9721da6 | 53 | #include "AliMagF.h" |
254ef8f1 | 54 | #include "AliRun.h" |
f9721da6 | 55 | #include "AliVZEROLoader.h" |
56 | #include "AliVZEROdigit.h" | |
57 | #include "AliVZEROhit.h" | |
58 | #include "AliVZEROv3.h" | |
f9721da6 | 59 | |
60 | ClassImp(AliVZEROv3) | |
61 | ||
62 | //_____________________________________________________________________________ | |
0b2bea8b | 63 | AliVZEROv3:: AliVZEROv3():AliVZERO(), |
64 | fCellId(0), | |
65 | fTrackPosition(), | |
66 | fTrackMomentum(), | |
67 | fLightYield(93.75), | |
68 | fLightAttenuation(0.05), | |
69 | fnMeters(15.0), | |
70 | fFibToPhot(0.3) | |
f9721da6 | 71 | { |
72 | // Standard default constructor | |
73 | } | |
74 | ||
75 | //_____________________________________________________________________________ | |
76 | AliVZEROv3::AliVZEROv3(const char *name, const char *title): | |
0b2bea8b | 77 | AliVZERO(name,title), |
78 | fCellId(0), | |
79 | fTrackPosition(), | |
80 | fTrackMomentum(), | |
81 | fLightYield(93.75), | |
82 | fLightAttenuation(0.05), | |
83 | fnMeters(15.0), | |
84 | fFibToPhot(0.3) | |
f9721da6 | 85 | { |
86 | ||
87 | // Standard constructor for V-zero Detector version 2 | |
88 | ||
254ef8f1 | 89 | AliDebug(2,"Create VZERO object"); |
f9721da6 | 90 | |
0b2bea8b | 91 | // fLightYield = 93.75; |
92 | // fLightAttenuation = 0.05; | |
93 | // fnMeters = 15.0; | |
94 | // fFibToPhot = 0.3; | |
f9721da6 | 95 | |
96 | } | |
97 | ||
98 | //_____________________________________________________________________________ | |
99 | void AliVZEROv3::CreateGeometry() | |
100 | { | |
101 | ||
102 | // Creates the GEANT geometry of the V-zero Detector version 3 | |
103 | ||
254ef8f1 | 104 | AliDebug(2,"Create VZERO Geometry"); |
f9721da6 | 105 | |
106 | Int_t *idtmed = fIdtmed->GetArray()-2999; | |
107 | ||
108 | Int_t ndetR = 1; | |
109 | Int_t ndetL = 1; | |
110 | ||
111 | Int_t ncellsR = 1; | |
112 | Int_t ncellsL = 1; | |
113 | ||
114 | Int_t idrotm[999]; | |
115 | ||
116 | Float_t height1Right, height2Right, height3Right; | |
117 | Float_t heightRight; | |
118 | Float_t theta; | |
119 | ||
120 | Float_t halfThickQua; | |
121 | ||
122 | Float_t zdet; | |
123 | Float_t r0Right, r3Right; | |
124 | Float_t pi = TMath::Pi(); | |
125 | ||
126 | height1Right = 1.82 + 3.81; // height of cell 1, in cm | |
127 | height2Right = 4.72 + 7.12; // height of cell 2, in cm | |
128 | height3Right = 10.83; // height of cell 3, in cm | |
129 | ||
130 | theta = pi/6.0/2.0; // half angular opening = 15 degrees | |
131 | ||
132 | halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring) | |
133 | ||
134 | // distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from | |
135 | // absorber nose sitting at 90 cm. Will use -zdet later... | |
136 | // size of V0R box (fThickness) is increased by 1 mm as compared to version v2 | |
137 | ||
138 | fThickness = fThickness + 0.1; | |
139 | zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis) | |
140 | r0Right = 4.05; // closest distance to center of the beam pipe | |
141 | heightRight = height1Right + height2Right + height3Right; | |
142 | r3Right = r0Right + heightRight; | |
143 | ||
144 | // Creation of mother volume v0LE - left part - : | |
145 | // Entrance face at +350.0 cm (new coordinate system) ... | |
146 | ||
147 | Float_t partube[3]; | |
148 | ||
149 | partube[0] = 4.3; | |
150 | partube[1] = 45.0; | |
151 | partube[2] = fThickness1/2.0; | |
152 | ||
153 | gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3); | |
154 | ||
155 | // Creation of five rings - left part - : | |
156 | // Entrance face at +350.0 cm (new coordinate system) ... | |
157 | ||
158 | // Mother volume v0L0 in which will be set 5 scintillator cells | |
159 | ||
160 | Float_t partubs[5]; | |
161 | ||
162 | Float_t r0Left = 4.3; | |
163 | Float_t height1Left = 2.6 + 4.1; // previous ring 1 + ring 2 | |
164 | Float_t height2Left = 6.4 + 10.2; // previous ring 3 + ring 4 | |
165 | Float_t height3Left = 16.9; | |
166 | Float_t heightLeft = height1Left + height2Left + height3Left; | |
167 | ||
168 | Float_t r3Left = r0Left + heightLeft; | |
169 | ||
170 | partubs[0] = r0Left; | |
171 | partubs[1] = r3Left; | |
172 | partubs[2] = fThickness1/2.0; | |
173 | partubs[3] = 90.0-15.0; | |
174 | partubs[4] = 120.0-15.0; | |
175 | ||
176 | gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume | |
177 | ||
178 | Float_t r1Left = r0Left + height1Left; | |
179 | ||
180 | partubs[0] = r0Left; | |
181 | partubs[1] = r1Left; | |
182 | ||
183 | gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume | |
184 | gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
185 | ||
186 | Float_t r2Left = r1Left + height2Left; | |
187 | ||
188 | partubs[0] = r1Left; | |
189 | partubs[1] = r2Left; | |
190 | ||
191 | gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume | |
192 | gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
193 | ||
194 | partubs[0] = r2Left; | |
195 | partubs[1] = r3Left; | |
196 | ||
197 | gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume | |
198 | gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
199 | ||
200 | ||
201 | // Creation of mother volume v0RI - right part - : | |
202 | ||
203 | partube[0] = r0Right - 0.2; | |
204 | partube[1] = r3Right + 1.0; | |
205 | partube[2] = fThickness/2.0; | |
206 | ||
207 | gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3); | |
208 | ||
209 | // Creation of carbon lids (3.5 mm thick) to keep v0RI box shut... | |
210 | ||
211 | Float_t lidThickness = 0.35; | |
212 | ||
213 | partube[0] = r0Right; | |
214 | partube[1] = r3Right; | |
215 | partube[2] = +lidThickness/2.0; | |
216 | ||
217 | gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3); | |
218 | gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY"); | |
219 | gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY"); | |
220 | ||
221 | // Creation of aluminum rings to maintain the v0RI pieces ... | |
222 | ||
223 | partube[0] = r0Right - 0.2; | |
224 | partube[1] = r0Right; | |
225 | partube[2] = +fThickness/2.0; | |
226 | ||
227 | gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3); | |
228 | gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY"); | |
229 | ||
230 | partube[0] = r3Right; | |
231 | partube[1] = r3Right + 1.0; | |
232 | partube[2] = +fThickness/2.0; | |
233 | ||
234 | gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3); | |
235 | gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY"); | |
236 | ||
237 | // Mother volume v0R0 in which will be set 3 scintillator cells | |
238 | ||
239 | partubs[0] = r0Right; | |
240 | partubs[1] = r3Right; | |
241 | partubs[2] = fThickness/2.0; | |
242 | partubs[3] = 90.0-15.0; | |
243 | partubs[4] = 120.0-15.0; | |
244 | ||
245 | gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume | |
246 | ||
247 | // Elementary cell of ring 1 : | |
248 | // (cells of ring 1 will be shifted by 1.7 cm towards vertex to output fibers) | |
249 | ||
250 | Float_t offsetFibers = 1.7; | |
251 | Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0; | |
252 | Float_t r1Right = r0Right + height1Right; | |
253 | ||
254 | partubs[0] = r0Right; | |
255 | partubs[1] = r1Right; | |
256 | partubs[2] = fThickness1/2.0; | |
257 | ||
258 | gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
259 | gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY"); | |
260 | ||
261 | // Elementary cell of ring 2 : | |
262 | ||
263 | Float_t r2Right = r1Right + height2Right; | |
264 | ||
265 | partubs[0] = r1Right; | |
266 | partubs[1] = r2Right; | |
267 | ||
268 | gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
269 | gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); | |
270 | ||
271 | ||
272 | // Elementary cell of ring 3 : | |
273 | ||
274 | partubs[0] = r2Right; | |
275 | partubs[1] = r3Right; | |
276 | ||
277 | gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
278 | gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); | |
279 | ||
280 | ||
281 | Float_t phiDeg = 180./6.; | |
282 | ||
283 | // Right part : | |
284 | ||
285 | for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg) | |
286 | { | |
287 | AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0); | |
288 | gMC->Gspos("V0R0",ndetR,"V0RI",0.0, | |
289 | 0.0,0.0,idrotm[902],"ONLY"); | |
290 | ndetR++; | |
291 | } | |
292 | ||
293 | gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY"); | |
294 | ||
295 | ncellsR = (ndetR - 1) * 3; | |
254ef8f1 | 296 | AliInfo(Form("Number of cells on Right side = %d",ncellsR)); |
f9721da6 | 297 | |
298 | // Left part : | |
299 | ||
300 | for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg) | |
301 | { | |
302 | AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0); | |
303 | gMC->Gspos("V0L0",ndetL,"V0LE",0.0, | |
304 | 0.0,0.0,idrotm[902],"ONLY"); | |
305 | ndetL++; | |
306 | } | |
307 | ||
308 | gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY"); | |
309 | ||
310 | ncellsL = (ndetL - 1) * 3; | |
254ef8f1 | 311 | AliInfo(Form("Number of cells on Left side = %d", ncellsL)); |
f9721da6 | 312 | |
313 | } | |
314 | ||
f9721da6 | 315 | //_____________________________________________________________________________ |
316 | void AliVZEROv3::CreateMaterials() | |
317 | { | |
318 | ||
319 | // Creates materials used for geometry | |
320 | ||
254ef8f1 | 321 | AliDebug(2,"VZERO create materials"); |
f9721da6 | 322 | |
323 | /* | |
324 | Float_t ppckov[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, | |
325 | 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 }; | |
326 | ||
327 | ||
328 | Float_t ppckov_alu[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9, | |
329 | 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 }; | |
330 | ||
331 | Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458, | |
332 | 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362, | |
333 | 1.662295, 1.68337 }; | |
334 | ||
335 | Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525, | |
336 | 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 }; | |
337 | ||
338 | Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
339 | ||
340 | ||
341 | Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
342 | ||
343 | ||
344 | Float_t absco_alu[14] = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4, | |
345 | 1e-4,1e-4,1e-4,1e-4 }; | |
346 | Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
347 | ||
348 | */ | |
349 | ||
350 | Int_t *idtmed = fIdtmed->GetArray()-2999; | |
351 | ||
f9721da6 | 352 | |
353 | // Parameters related to Quarz (SiO2) : | |
354 | ||
355 | Float_t aqua[2], zqua[2], densqua, wmatqua[2]; | |
356 | Int_t nlmatqua; | |
357 | ||
358 | aqua[0] = 28.09; | |
359 | aqua[1] = 16.; | |
360 | zqua[0] = 14.; | |
361 | zqua[1] = 8.; | |
362 | densqua = 2.64; | |
363 | nlmatqua = -2; | |
364 | wmatqua[0] = 1.; | |
365 | wmatqua[1] = 2.; | |
366 | ||
367 | // Parameters related to aluminum sheets : | |
368 | ||
369 | Float_t aal = 26.98; | |
370 | Float_t zal = 13.00; | |
371 | Float_t densal= 2.7; | |
372 | Float_t radlal= 8.9; | |
373 | ||
374 | // Parameters related to scintillator CH : | |
375 | ||
376 | Float_t ascin[2] = {1.00794,12.011}; | |
377 | Float_t zscin[2] = {1.,6.}; | |
378 | Float_t wscin[2] = {1.,1.}; | |
379 | Float_t denscin = 1.032; | |
380 | ||
f7b3a79e | 381 | // AIR |
382 | ||
383 | Float_t aAir[4]={12.,14.,16.,36.}; | |
384 | Float_t zAir[4]={6.,7.,8.,18.}; | |
385 | Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; | |
386 | Float_t dAir = 1.20479E-3; | |
387 | ||
f9721da6 | 388 | // Definition of materials : |
f7b3a79e | 389 | |
390 | // AIR | |
391 | ||
392 | AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir); | |
393 | AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir); | |
f9721da6 | 394 | AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0); |
395 | AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua); | |
396 | AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0); | |
397 | AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0); | |
398 | ||
399 | AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin); | |
f7a1cc68 | 400 | |
401 | Int_t iSXFLD = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // Field type | |
402 | Float_t sXMGMX = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // Field max. | |
f9721da6 | 403 | |
404 | Float_t tmaxfd, stemax, deemax, epsil, stmin; | |
405 | ||
406 | tmaxfd = 10.; | |
407 | stemax = 0.1; | |
408 | deemax = 0.1; | |
409 | epsil = 0.001; | |
410 | stmin = 0.001; | |
411 | ||
412 | // Active Air : | |
413 | AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX, | |
414 | 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; | |
415 | ||
416 | // Inactive air : | |
417 | ||
418 | AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX, | |
419 | 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; | |
420 | ||
421 | AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX, | |
422 | tmaxfd, stemax, deemax, epsil, stmin, 0, 0); | |
423 | ||
424 | AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX, | |
425 | tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0); | |
426 | ||
427 | AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX, | |
428 | tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0); | |
429 | ||
430 | ||
431 | AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX, | |
432 | tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0); | |
433 | ||
434 | AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0); | |
435 | ||
436 | gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF | |
437 | gMC->Gstpar(idtmed[3000], "HADR", 1.); | |
438 | gMC->Gstpar(idtmed[3000], "DCAY", 1.); | |
439 | gMC->Gstpar(idtmed[3000], "DRAY", 1.); | |
440 | ||
441 | gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon | |
442 | gMC->Gstpar(idtmed[3001], "HADR", 1.); | |
443 | gMC->Gstpar(idtmed[3001], "DCAY", 1.); | |
444 | gMC->Gstpar(idtmed[3001], "DRAY", 1.); | |
445 | ||
446 | gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz | |
447 | gMC->Gstpar(idtmed[3002], "HADR", 1.); | |
448 | gMC->Gstpar(idtmed[3002], "DCAY", 1.); | |
449 | gMC->Gstpar(idtmed[3002], "DRAY", 1.); | |
450 | gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ; | |
451 | gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ; | |
452 | ||
453 | gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum | |
454 | gMC->Gstpar(idtmed[3003], "HADR", 1.); | |
455 | gMC->Gstpar(idtmed[3003], "DCAY", 1.); | |
456 | gMC->Gstpar(idtmed[3003], "DRAY", 1.); | |
457 | ||
458 | gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum | |
459 | gMC->Gstpar(idtmed[3004], "HADR", 1.); | |
460 | gMC->Gstpar(idtmed[3004], "DCAY", 1.); | |
461 | gMC->Gstpar(idtmed[3004], "DRAY", 1.); | |
462 | gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ; | |
463 | gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ; | |
464 | ||
465 | gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator | |
466 | gMC->Gstpar(idtmed[3005], "HADR", 1.); | |
467 | gMC->Gstpar(idtmed[3005], "DCAY", 1.); | |
468 | gMC->Gstpar(idtmed[3005], "DRAY", 1.); | |
469 | gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ; | |
470 | gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ; | |
471 | ||
472 | ||
473 | // geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz); | |
474 | // geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu); | |
475 | ||
476 | // gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz); | |
477 | // gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu); | |
478 | ||
479 | } | |
480 | ||
481 | //_____________________________________________________________________________ | |
ba380e33 | 482 | void AliVZEROv3::DrawModule() const |
f9721da6 | 483 | { |
484 | ||
485 | // Drawing is done in DrawVZERO.C | |
486 | ||
254ef8f1 | 487 | AliDebug(2,"VZERO DrawModule"); |
f9721da6 | 488 | |
489 | } | |
490 | ||
491 | //_____________________________________________________________________________ | |
492 | void AliVZEROv3::Init() | |
493 | { | |
494 | // Initialises version 2 of the VZERO Detector | |
495 | // Just prints an information message | |
496 | ||
254ef8f1 | 497 | AliInfo(Form("VZERO version %d initialized",IsVersion())); |
f9721da6 | 498 | |
499 | // gMC->SetMaxStep(fMaxStepAlu); | |
500 | // gMC->SetMaxStep(fMaxStepQua); | |
501 | ||
502 | AliVZERO::Init(); | |
503 | ||
504 | } | |
505 | ||
506 | ||
507 | //_____________________________________________________________________________ | |
508 | void AliVZEROv3::StepManager() | |
509 | { | |
510 | ||
511 | // Step Manager, called at each step | |
512 | ||
513 | Int_t copy; | |
514 | static Int_t vol[4]; | |
515 | static Float_t hits[21]; | |
516 | static Float_t eloss, tlength; | |
f9721da6 | 517 | static Int_t nPhotonsInStep; |
518 | static Int_t nPhotons; | |
519 | static Int_t numStep; | |
520 | Float_t ringNumber; | |
521 | Float_t destep, step; | |
522 | ||
523 | numStep += 1; | |
524 | ||
525 | // We keep only charged tracks : | |
526 | ||
527 | if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return; | |
528 | ||
d6fb41ac | 529 | static Int_t idV0R1 = gMC->VolId("V0R1"); |
530 | static Int_t idV0L1 = gMC->VolId("V0L1"); | |
531 | static Int_t idV0R2 = gMC->VolId("V0R2"); | |
532 | static Int_t idV0L2 = gMC->VolId("V0L2"); | |
533 | static Int_t idV0R3 = gMC->VolId("V0R3"); | |
534 | static Int_t idV0L3 = gMC->VolId("V0L3"); | |
535 | ||
f9721da6 | 536 | vol[0] = gMC->CurrentVolOffID(1, vol[1]); |
537 | vol[2] = gMC->CurrentVolID(copy); | |
538 | vol[3] = copy; | |
539 | ||
d6fb41ac | 540 | if ( gMC->CurrentVolID(copy) == idV0R1 || |
541 | gMC->CurrentVolID(copy) == idV0L1 ) | |
f9721da6 | 542 | ringNumber = 1.0; |
d6fb41ac | 543 | else if ( gMC->CurrentVolID(copy) == idV0R2 || |
544 | gMC->CurrentVolID(copy) == idV0L2 ) | |
f9721da6 | 545 | ringNumber = 2.0; |
d6fb41ac | 546 | else if ( gMC->CurrentVolID(copy) == idV0R3 || |
547 | gMC->CurrentVolID(copy) == idV0L3 ) | |
f9721da6 | 548 | ringNumber = 3.0; |
549 | else | |
550 | ringNumber = 0.0; | |
551 | ||
552 | if ( ringNumber > 0.5 ) { | |
553 | ||
554 | destep = gMC->Edep(); | |
555 | step = gMC->TrackStep(); | |
556 | ||
557 | nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) ); | |
558 | nPhotonsInStep = gRandom->Poisson(nPhotonsInStep); | |
559 | ||
560 | eloss += destep; | |
561 | tlength += step; | |
562 | ||
563 | if ( gMC->IsTrackEntering() ) { | |
564 | ||
565 | nPhotons = nPhotonsInStep; | |
566 | gMC->TrackPosition(fTrackPosition); | |
567 | gMC->TrackMomentum(fTrackMomentum); | |
568 | ||
569 | Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() + | |
570 | fTrackMomentum.Py() * fTrackMomentum.Py() ); | |
571 | ||
572 | hits[0] = fTrackPosition.X(); | |
573 | hits[1] = fTrackPosition.Y(); | |
574 | hits[2] = fTrackPosition.Z(); | |
575 | hits[3] = Float_t (gMC->TrackPid()); | |
576 | ||
577 | hits[4] = gMC->TrackTime(); | |
578 | hits[5] = gMC->TrackCharge(); | |
579 | hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg(); | |
580 | hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg(); | |
581 | hits[8] = ringNumber; | |
582 | ||
583 | hits[9] = pt; | |
584 | hits[10] = fTrackMomentum.P(); | |
585 | hits[11] = fTrackMomentum.Px(); | |
586 | hits[12] = fTrackMomentum.Py(); | |
587 | hits[13] = fTrackMomentum.Pz(); | |
588 | ||
589 | TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber()); | |
590 | hits[14] = par->Vx(); | |
591 | hits[15] = par->Vy(); | |
592 | hits[16] = par->Vz(); | |
593 | ||
594 | tlength = 0.0; | |
595 | eloss = 0.0; | |
596 | ||
597 | } | |
598 | ||
599 | nPhotons = nPhotons + nPhotonsInStep; | |
600 | ||
601 | if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){ | |
602 | ||
603 | nPhotons = nPhotons - Int_t( (Float_t(nPhotons) * fLightAttenuation * fnMeters) ); | |
604 | nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot ); | |
605 | ||
606 | hits[17] = eloss; | |
607 | hits[18] = tlength; | |
608 | hits[19] = nPhotons; | |
609 | hits[20] = GetCellId (vol, hits); | |
610 | ||
611 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits); | |
612 | ||
613 | tlength = 0.0; | |
614 | eloss = 0.0; | |
615 | nPhotons = 0; | |
616 | nPhotonsInStep = 0; | |
617 | ||
618 | numStep = 0; | |
619 | } | |
620 | } | |
621 | ||
622 | } | |
623 | ||
624 | //_____________________________________________________________________________ | |
625 | void AliVZEROv3::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
626 | { | |
627 | ||
628 | // Adds a VZERO hit | |
629 | ||
630 | TClonesArray &lhits = *fHits; | |
631 | new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits); | |
632 | } | |
633 | ||
634 | //_____________________________________________________________________________ | |
635 | void AliVZEROv3::AddDigits(Int_t *tracks, Int_t* digits) | |
636 | { | |
637 | ||
638 | // Adds a VZERO digit | |
639 | ||
640 | TClonesArray &ldigits = *fDigits; | |
641 | new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits); | |
642 | } | |
643 | ||
644 | //_____________________________________________________________________________ | |
645 | void AliVZEROv3::MakeBranch(Option_t *option) | |
646 | { | |
647 | ||
648 | // Creates new branches in the current Root Tree | |
649 | ||
650 | char branchname[10]; | |
651 | sprintf(branchname,"%s",GetName()); | |
254ef8f1 | 652 | AliDebug(2,Form("fBufferSize = %d",fBufferSize)); |
f9721da6 | 653 | |
654 | const char *cH = strstr(option,"H"); | |
655 | ||
cb5b8b21 | 656 | if (fHits && fLoader->TreeH() && cH) { |
657 | fLoader->TreeH()->Branch(branchname,&fHits, fBufferSize); | |
254ef8f1 | 658 | AliDebug(2,Form("Making Branch %s for hits",branchname)); |
f9721da6 | 659 | } |
660 | ||
661 | const char *cD = strstr(option,"D"); | |
662 | ||
663 | if (fDigits && fLoader->TreeD() && cD) { | |
664 | fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize); | |
254ef8f1 | 665 | AliDebug(2,Form("Making Branch %s for digits",branchname)); |
f9721da6 | 666 | } |
667 | ||
668 | } | |
669 | ||
670 | //_____________________________________________________________________________ | |
671 | Int_t AliVZEROv3::GetCellId(Int_t *vol, Float_t *hits) | |
672 | { | |
673 | ||
674 | // Returns Id of scintillator cell | |
675 | // Right side from 0 to 35 | |
676 | // Left side from 36 to 71 | |
677 | ||
678 | Int_t index = vol[1]; | |
679 | fCellId = 0; | |
680 | ||
681 | if (index < 10) index = index + 12; | |
682 | ||
683 | if (hits[2] < 0.0) { | |
684 | index = (index - 10) + ( ( Int_t(hits[8]) - 1 ) * 12); | |
685 | fCellId = index; | |
686 | } | |
687 | else if (hits[2] > 0.0) | |
688 | { | |
689 | index = (index + 26) + ( ( Int_t(hits[8]) - 1 ) * 12); | |
690 | fCellId = index;} | |
691 | ||
692 | return fCellId; | |
693 | } |