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79b41939 | 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 4 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 24th of february 2004 // | |
24 | // (now 4 rings instead of 3 rings as in previous version) // | |
25 | // V0R (now V0C) sits between Z values -89.4 and -84.9 cm // | |
26 | // V0L (now V0A) sits between Z values +350.0 and +352.0 cm // | |
27 | // New coordinate system has been implemented in october 2003 // | |
28 | // // | |
29 | ////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | // --- Standard libraries --- | |
32 | #include <Riostream.h> | |
33 | #include <stdlib.h> | |
34 | #include <string.h> | |
35 | ||
36 | // --- ROOT libraries --- | |
37 | #include <TClonesArray.h> | |
f7a1cc68 | 38 | #include <TGeoGlobalMagField.h> |
79b41939 | 39 | #include <TLorentzVector.h> |
40 | #include <TMath.h> | |
79b41939 | 41 | #include <TObjectTable.h> |
79b41939 | 42 | #include <TParticle.h> |
f7a1cc68 | 43 | #include <TVirtualMC.h> |
79b41939 | 44 | |
45 | // --- AliRoot header files --- | |
46 | #include "AliRun.h" | |
47 | #include "AliMC.h" | |
48 | #include "AliConst.h" | |
254ef8f1 | 49 | #include "AliLog.h" |
79b41939 | 50 | #include "AliMagF.h" |
51 | #include "AliVZEROLoader.h" | |
52 | #include "AliVZEROdigit.h" | |
53 | #include "AliVZEROhit.h" | |
54 | #include "AliVZEROv4.h" | |
55 | ||
56 | ClassImp(AliVZEROv4) | |
57 | ||
58 | //_____________________________________________________________________________ | |
0b2bea8b | 59 | AliVZEROv4:: AliVZEROv4():AliVZERO(), |
60 | fCellId(0), | |
61 | fTrackPosition(), | |
62 | fTrackMomentum(), | |
63 | fLightYield(93.75), | |
64 | fLightAttenuation(0.05), | |
65 | fnMeters(15.0), | |
66 | fFibToPhot(0.3) | |
67 | ||
79b41939 | 68 | { |
69 | // Standard default constructor | |
70 | } | |
71 | ||
72 | //_____________________________________________________________________________ | |
73 | AliVZEROv4::AliVZEROv4(const char *name, const char *title): | |
0b2bea8b | 74 | AliVZERO(name,title), |
75 | fCellId(0), | |
76 | fTrackPosition(), | |
77 | fTrackMomentum(), | |
78 | fLightYield(93.75), | |
79 | fLightAttenuation(0.05), | |
80 | fnMeters(15.0), | |
81 | fFibToPhot(0.3) | |
82 | ||
79b41939 | 83 | { |
84 | ||
85 | // Standard constructor for V-zero Detector version 2 | |
86 | ||
254ef8f1 | 87 | AliDebug(2,"Create VZERO object"); |
0b2bea8b | 88 | // |
89 | // fLightYield = 93.75; // Light yield in BC408 (93.75 eV per photon) | |
90 | // fLightAttenuation = 0.05; // Light attenuation in fiber (0.05 per meter) | |
91 | // fnMeters = 15.0; // Number of meters of clear fibers to PM | |
92 | // fFibToPhot = 0.3; // Attenuation at fiber-photocathode interface | |
79b41939 | 93 | } |
94 | ||
95 | //_____________________________________________________________________________ | |
96 | void AliVZEROv4::CreateGeometry() | |
97 | { | |
98 | ||
99 | // Creates the GEANT geometry of the V-zero Detector version 3 | |
100 | ||
254ef8f1 | 101 | AliDebug(2,"Create VZERO Geometry "); |
79b41939 | 102 | |
103 | Int_t *idtmed = fIdtmed->GetArray()-2999; | |
104 | ||
105 | Int_t ndetR = 1; | |
106 | Int_t ndetL = 1; | |
107 | ||
108 | Int_t ncellsR = 1; | |
109 | Int_t ncellsL = 1; | |
110 | ||
111 | Int_t idrotm[999]; | |
112 | ||
113 | Float_t height1Right, height2Right, height3Right, height4Right; | |
114 | Float_t heightRight; | |
115 | Float_t theta; | |
116 | ||
117 | Float_t halfThickQua; | |
118 | ||
119 | Float_t zdet; | |
120 | Float_t r0Right, r4Right; | |
121 | Float_t pi = TMath::Pi(); | |
122 | ||
123 | height1Right = 3.42; // height of cell 1, in cm | |
124 | height2Right = 6.78; // height of cell 2, in cm | |
125 | height3Right = 7.11; // height of cell 3, in cm | |
126 | height4Right = 10.91; // height of cell 4, in cm | |
127 | ||
128 | theta = pi/6.0/2.0; // half angular opening = 15 degrees | |
129 | ||
130 | halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring) | |
131 | ||
132 | // distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from | |
133 | // absorber nose sitting at 90 cm. Will use -zdet later... | |
134 | // size of V0R box (fThickness) is increased by 1 mm as compared to version v2 | |
135 | ||
136 | fThickness = fThickness + 0.1; | |
137 | zdet = 90.0 - 0.6 - fThickness/2.0; // distance to vertex (along Z axis) | |
138 | r0Right = 4.05; // closest distance to center of the beam pipe | |
139 | heightRight = height1Right + height2Right + height3Right + height4Right; | |
140 | r4Right = r0Right + heightRight; | |
141 | ||
142 | // Creation of mother volume v0LE - left part - : | |
143 | // Entrance face at +350.0 cm (new coordinate system) ... | |
144 | ||
145 | Float_t partube[3]; | |
146 | ||
147 | partube[0] = 4.3; | |
148 | partube[1] = 45.0; | |
149 | partube[2] = fThickness1/2.0; | |
150 | ||
151 | gMC->Gsvolu("V0LE","TUBE",idtmed[3005],partube,3); | |
152 | ||
153 | // Creation of five rings - left part - : | |
154 | // Entrance face at +350.0 cm (new coordinate system) ... | |
155 | ||
156 | // Mother volume v0L0 in which will be set 5 scintillator cells | |
157 | ||
158 | Float_t partubs[5]; | |
159 | ||
160 | Float_t r0Left = 4.3; | |
161 | Float_t height1Left = 3.6; | |
162 | Float_t height2Left = 6.4; | |
163 | Float_t height3Left = 14.9; | |
164 | Float_t height4Left = 14.4; | |
165 | Float_t heightLeft = height1Left + height2Left + height3Left + height4Left; | |
166 | ||
167 | Float_t r4Left = r0Left + heightLeft; | |
168 | ||
169 | partubs[0] = r0Left; | |
170 | partubs[1] = r4Left; | |
171 | partubs[2] = fThickness1/2.0; | |
172 | partubs[3] = 90.0-15.0; | |
173 | partubs[4] = 120.0-15.0; | |
174 | ||
175 | gMC->Gsvolu("V0L0","TUBS",idtmed[3010],partubs,5); // air volume | |
176 | ||
177 | Float_t r1Left = r0Left + height1Left; | |
178 | ||
179 | partubs[0] = r0Left; | |
180 | partubs[1] = r1Left; | |
181 | ||
182 | gMC->Gsvolu("V0L1","TUBS",idtmed[3005],partubs,5); // quartz volume | |
183 | gMC->Gspos("V0L1",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
184 | ||
185 | Float_t r2Left = r1Left + height2Left; | |
186 | ||
187 | partubs[0] = r1Left; | |
188 | partubs[1] = r2Left; | |
189 | ||
190 | gMC->Gsvolu("V0L2","TUBS",idtmed[3005],partubs,5); // quartz volume | |
191 | gMC->Gspos("V0L2",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
192 | ||
193 | Float_t r3Left = r2Left + height3Left; | |
194 | ||
195 | partubs[0] = r2Left; | |
196 | partubs[1] = r3Left; | |
197 | ||
198 | gMC->Gsvolu("V0L3","TUBS",idtmed[3005],partubs,5); // quartz volume | |
199 | gMC->Gspos("V0L3",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
200 | ||
201 | partubs[0] = r3Left; | |
202 | partubs[1] = r4Left; | |
203 | ||
204 | gMC->Gsvolu("V0L4","TUBS",idtmed[3005],partubs,5); // quartz volume | |
205 | gMC->Gspos("V0L4",1,"V0L0", 0.0, 0.0 , 0.0, 0,"ONLY"); | |
206 | ||
207 | // Creation of mother volume v0RI - right part - : | |
208 | ||
209 | partube[0] = r0Right - 0.2; | |
210 | partube[1] = r4Right + 1.0; | |
211 | partube[2] = fThickness/2.0; | |
212 | ||
213 | gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3); | |
214 | ||
215 | // Creation of carbon lids (3.5 mm thick) to keep v0RI box shut... | |
216 | ||
217 | Float_t lidThickness = 0.35; | |
218 | ||
219 | partube[0] = r0Right; | |
220 | partube[1] = r4Right; | |
221 | partube[2] = +lidThickness/2.0; | |
222 | ||
223 | gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3); | |
224 | gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY"); | |
225 | gMC->Gspos("V0CA",2,"V0RI",0.0,0.0,-fThickness/2.0+partube[2],0,"ONLY"); | |
226 | ||
227 | // Creation of aluminum rings to maintain the v0RI pieces ... | |
228 | ||
229 | partube[0] = r0Right - 0.2; | |
230 | partube[1] = r0Right; | |
231 | partube[2] = +fThickness/2.0; | |
232 | ||
233 | gMC->Gsvolu("V0IR","TUBE",idtmed[3003],partube,3); | |
234 | gMC->Gspos("V0IR",1,"V0RI",0.0,0.0,0.0,0,"ONLY"); | |
235 | ||
236 | partube[0] = r4Right; | |
237 | partube[1] = r4Right + 1.0; | |
238 | partube[2] = +fThickness/2.0; | |
239 | ||
240 | gMC->Gsvolu("V0ER","TUBE",idtmed[3003],partube,3); | |
241 | gMC->Gspos("V0ER",1,"V0RI",0.0,0.0,0.0,0,"ONLY"); | |
242 | ||
243 | // Mother volume v0R0 in which will be set 4 scintillator cells | |
244 | ||
245 | partubs[0] = r0Right; | |
246 | partubs[1] = r4Right; | |
247 | partubs[2] = fThickness/2.0; | |
248 | partubs[3] = 90.0-15.0; | |
249 | partubs[4] = 120.0-15.0; | |
250 | ||
251 | gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume | |
252 | ||
253 | // Elementary cell of ring 1 : | |
254 | // (cells of ring 1 will be shifted by 1.7 cm towards vertex to output fibers) | |
255 | ||
256 | Float_t offsetFibers = 1.7; | |
257 | Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0; | |
258 | Float_t r1Right = r0Right + height1Right; | |
259 | ||
260 | partubs[0] = r0Right; | |
261 | partubs[1] = r1Right; | |
262 | partubs[2] = fThickness1/2.0; | |
263 | ||
264 | gMC->Gsvolu("V0R1","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
265 | gMC->Gspos("V0R1",1,"V0R0", 0.0, 0.0 , -offset + offsetFibers, 0,"ONLY"); | |
266 | ||
267 | // Elementary cell of ring 2 : | |
268 | ||
269 | Float_t r2Right = r1Right + height2Right; | |
270 | ||
271 | partubs[0] = r1Right; | |
272 | partubs[1] = r2Right; | |
273 | ||
274 | gMC->Gsvolu("V0R2","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
275 | gMC->Gspos("V0R2",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); | |
276 | ||
277 | ||
278 | // Elementary cell of ring 3 : | |
279 | ||
280 | Float_t r3Right = r2Right + height3Right; | |
281 | ||
282 | partubs[0] = r2Right; | |
283 | partubs[1] = r3Right; | |
284 | ||
285 | gMC->Gsvolu("V0R3","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
286 | gMC->Gspos("V0R3",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); | |
287 | ||
288 | // Elementary cell of ring 4 : | |
289 | ||
290 | partubs[0] = r3Right; | |
291 | partubs[1] = r4Right; | |
292 | ||
293 | gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume | |
294 | gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset, 0,"ONLY"); | |
295 | ||
296 | Float_t phiDeg = 180./6.; | |
297 | ||
298 | // Right 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("V0R0",ndetR,"V0RI",0.0, | |
304 | 0.0,0.0,idrotm[902],"ONLY"); | |
305 | ndetR++; | |
306 | } | |
307 | ||
308 | gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY"); | |
309 | ||
310 | ncellsR = (ndetR - 1) * 4; | |
254ef8f1 | 311 | AliInfo(Form("Number of cells on Right side = %d", ncellsR)); |
79b41939 | 312 | |
313 | // Left part : | |
314 | ||
315 | for(Float_t phi = 15.0 ; phi < 360.0; phi = phi + phiDeg) | |
316 | { | |
317 | AliMatrix(idrotm[902], 90.0, phi, 90.0, 90.0 +phi, 0.0 , 0.0); | |
318 | gMC->Gspos("V0L0",ndetL,"V0LE",0.0, | |
319 | 0.0,0.0,idrotm[902],"ONLY"); | |
320 | ndetL++; | |
321 | } | |
322 | ||
323 | gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY"); | |
324 | ||
325 | ncellsL = (ndetL - 1) * 4; | |
254ef8f1 | 326 | AliInfo(Form("Number of cells on Left side = %d", ncellsL)); |
79b41939 | 327 | |
7dd2cbe4 | 328 | } |
79b41939 | 329 | |
330 | //_____________________________________________________________________________ | |
331 | void AliVZEROv4::CreateMaterials() | |
332 | { | |
333 | ||
334 | // Creates materials used for geometry | |
335 | ||
254ef8f1 | 336 | AliDebug(2,"VZERO create materials"); |
79b41939 | 337 | |
338 | /* | |
339 | 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, | |
340 | 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 }; | |
341 | ||
342 | ||
343 | 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, | |
344 | 6.9e-9, 7.1e-9, 7.3e-9, 7.5e-9, 7.7e-9, 7.9e-9, 8.1e-9 }; | |
345 | ||
346 | Float_t rindex_quarz[14] = { 1.52398, 1.53090, 1.53835, 1.54641, 1.55513, 1.56458, | |
347 | 1.57488, 1.58611, 1.59842, 1.61197, 1.62696, 1.64362, | |
348 | 1.662295, 1.68337 }; | |
349 | ||
350 | Float_t absco_quarz[14] = { 105.8, 45.656, 35.665, 28.598, 25.007, 21.04, 17.525, | |
351 | 14.177, 9.282, 4.0925, 1.149, 0.3627, 0.1497, 0.05 }; | |
352 | ||
353 | Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
354 | ||
355 | ||
356 | Float_t rindex_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
357 | ||
358 | ||
359 | 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, | |
360 | 1e-4,1e-4,1e-4,1e-4 }; | |
361 | Float_t effic_alu[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. }; | |
362 | ||
363 | */ | |
364 | ||
365 | Int_t *idtmed = fIdtmed->GetArray()-2999; | |
366 | ||
79b41939 | 367 | |
368 | // Parameters related to Quarz (SiO2) : | |
369 | ||
370 | Float_t aqua[2], zqua[2], densqua, wmatqua[2]; | |
371 | Int_t nlmatqua; | |
372 | ||
373 | aqua[0] = 28.09; | |
374 | aqua[1] = 16.; | |
375 | zqua[0] = 14.; | |
376 | zqua[1] = 8.; | |
377 | densqua = 2.64; | |
378 | nlmatqua = -2; | |
379 | wmatqua[0] = 1.; | |
380 | wmatqua[1] = 2.; | |
381 | ||
382 | // Parameters related to aluminum sheets : | |
383 | ||
384 | Float_t aal = 26.98; | |
385 | Float_t zal = 13.00; | |
386 | Float_t densal= 2.7; | |
387 | Float_t radlal= 8.9; | |
388 | ||
389 | // Parameters related to scintillator CH : | |
390 | ||
391 | Float_t ascin[2] = {1.00794,12.011}; | |
392 | Float_t zscin[2] = {1.,6.}; | |
393 | Float_t wscin[2] = {1.,1.}; | |
394 | Float_t denscin = 1.032; | |
395 | ||
f7b3a79e | 396 | // AIR |
397 | ||
398 | Float_t aAir[4]={12.,14.,16.,36.}; | |
399 | Float_t zAir[4]={6.,7.,8.,18.}; | |
400 | Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; | |
401 | Float_t dAir = 1.20479E-3; | |
402 | ||
79b41939 | 403 | // Definition of materials : |
f7b3a79e | 404 | |
405 | // AIR | |
406 | ||
407 | AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir); | |
408 | AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir); | |
79b41939 | 409 | AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0); |
410 | AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua); | |
411 | AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0); | |
412 | AliMaterial( 5, "ALUMINIUM2$", aal, zal, densal, radlal, 0, 0, 0); | |
413 | ||
414 | AliMixture( 6, "Scintillator$",ascin,zscin,denscin,-2,wscin); | |
415 | ||
416 | ||
f7a1cc68 | 417 | Int_t iSXFLD = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // Field type |
418 | Float_t sXMGMX = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // Field max. | |
79b41939 | 419 | |
420 | Float_t tmaxfd, stemax, deemax, epsil, stmin; | |
421 | ||
422 | tmaxfd = 10.; | |
423 | stemax = 0.1; | |
424 | deemax = 0.1; | |
425 | epsil = 0.001; | |
426 | stmin = 0.001; | |
427 | ||
428 | // Active Air : | |
429 | AliMedium(1, "ACTIVE AIR$", 1, 1, iSXFLD, sXMGMX, | |
430 | 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; | |
431 | ||
432 | // Inactive air : | |
433 | ||
434 | AliMedium(11, "INACTIVE AIR$", 11, 0, iSXFLD, sXMGMX, | |
435 | 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; | |
436 | ||
437 | AliMedium(2, "CARBON$ ", 2, 1, iSXFLD, sXMGMX, | |
438 | tmaxfd, stemax, deemax, epsil, stmin, 0, 0); | |
439 | ||
440 | AliMedium(3, "QUARZ$", 3, 1, iSXFLD, sXMGMX, | |
441 | tmaxfd, fMaxStepQua, fMaxDestepQua, epsil, stmin, 0, 0); | |
442 | ||
443 | AliMedium(4,"ALUMINUM1$",4, 1, iSXFLD, sXMGMX, | |
444 | tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0); | |
445 | ||
446 | ||
447 | AliMedium(5,"ALUMINUM2$",5, 1, iSXFLD, sXMGMX, | |
448 | tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin, 0, 0); | |
449 | ||
450 | AliMedium(6,"SCINTILLATOR$",6, 1, iSXFLD, sXMGMX, 10.0, 0.1, 0.1, 0.003, 0.003, 0, 0); | |
451 | ||
452 | gMC->Gstpar(idtmed[3000], "LOSS", 1.); // [3000] = air ACTIF [3010] = air INACTIF | |
453 | gMC->Gstpar(idtmed[3000], "HADR", 1.); | |
454 | gMC->Gstpar(idtmed[3000], "DCAY", 1.); | |
455 | gMC->Gstpar(idtmed[3000], "DRAY", 1.); | |
456 | ||
457 | gMC->Gstpar(idtmed[3001], "LOSS", 1.); // [3001] = carbon | |
458 | gMC->Gstpar(idtmed[3001], "HADR", 1.); | |
459 | gMC->Gstpar(idtmed[3001], "DCAY", 1.); | |
460 | gMC->Gstpar(idtmed[3001], "DRAY", 1.); | |
461 | ||
462 | gMC->Gstpar(idtmed[3002], "LOSS", 1.); // [3002] = quartz | |
463 | gMC->Gstpar(idtmed[3002], "HADR", 1.); | |
464 | gMC->Gstpar(idtmed[3002], "DCAY", 1.); | |
465 | gMC->Gstpar(idtmed[3002], "DRAY", 1.); | |
466 | gMC->Gstpar(idtmed[3002], "CUTGAM",0.5E-4) ; | |
467 | gMC->Gstpar(idtmed[3002], "CUTELE",1.0E-4) ; | |
468 | ||
469 | gMC->Gstpar(idtmed[3003], "LOSS", 1.); // [3003] = normal aluminum | |
470 | gMC->Gstpar(idtmed[3003], "HADR", 1.); | |
471 | gMC->Gstpar(idtmed[3003], "DCAY", 1.); | |
472 | gMC->Gstpar(idtmed[3003], "DRAY", 1.); | |
473 | ||
474 | gMC->Gstpar(idtmed[3004], "LOSS", 1.); // [3004] = reflecting aluminum | |
475 | gMC->Gstpar(idtmed[3004], "HADR", 1.); | |
476 | gMC->Gstpar(idtmed[3004], "DCAY", 1.); | |
477 | gMC->Gstpar(idtmed[3004], "DRAY", 1.); | |
478 | gMC->Gstpar(idtmed[3004], "CUTGAM",0.5E-4) ; | |
479 | gMC->Gstpar(idtmed[3004], "CUTELE",1.0E-4) ; | |
480 | ||
481 | gMC->Gstpar(idtmed[3005], "LOSS", 1.); // [3005] = scintillator | |
482 | gMC->Gstpar(idtmed[3005], "HADR", 1.); | |
483 | gMC->Gstpar(idtmed[3005], "DCAY", 1.); | |
484 | gMC->Gstpar(idtmed[3005], "DRAY", 1.); | |
485 | gMC->Gstpar(idtmed[3005], "CUTGAM",0.5E-4) ; | |
486 | gMC->Gstpar(idtmed[3005], "CUTELE",1.0E-4) ; | |
487 | ||
488 | ||
489 | // geant3->Gsckov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz); | |
490 | // geant3->Gsckov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu); | |
491 | ||
492 | // gMC->SetCerenkov(idtmed[3002], 14, ppckov, absco_quarz, effic_all,rindex_quarz); | |
493 | // gMC->SetCerenkov(idtmed[3004], 14, ppckov_alu, absco_alu, effic_alu, rindex_alu); | |
494 | ||
495 | } | |
496 | ||
497 | //_____________________________________________________________________________ | |
ba380e33 | 498 | void AliVZEROv4::DrawModule() const |
79b41939 | 499 | { |
500 | ||
501 | // Drawing is done in DrawVZERO.C | |
502 | ||
254ef8f1 | 503 | AliDebug(2,"VZERO DrawModule"); |
79b41939 | 504 | } |
505 | ||
506 | //_____________________________________________________________________________ | |
507 | void AliVZEROv4::Init() | |
508 | { | |
509 | // Initialises version 2 of the VZERO Detector | |
510 | // Just prints an information message | |
511 | ||
254ef8f1 | 512 | AliDebug(2,Form("VZERO version %d initialized",IsVersion())); |
79b41939 | 513 | |
514 | // gMC->SetMaxStep(fMaxStepAlu); | |
515 | // gMC->SetMaxStep(fMaxStepQua); | |
516 | ||
517 | AliVZERO::Init(); | |
518 | } | |
519 | ||
520 | //_____________________________________________________________________________ | |
521 | void AliVZEROv4::StepManager() | |
522 | { | |
523 | ||
524 | // Step Manager, called at each step | |
525 | ||
526 | Int_t copy; | |
527 | static Int_t vol[4]; | |
528 | static Float_t hits[21]; | |
529 | static Float_t eloss, tlength; | |
530 | static Int_t nPhotonsInStep; | |
531 | static Int_t nPhotons; | |
532 | static Int_t numStep; | |
533 | Float_t ringNumber; | |
534 | Float_t destep, step; | |
535 | ||
536 | numStep += 1; | |
537 | ||
538 | // We keep only charged tracks : | |
539 | ||
540 | if ( !gMC->TrackCharge() || !gMC->IsTrackAlive() ) return; | |
541 | ||
542 | vol[0] = gMC->CurrentVolOffID(1, vol[1]); | |
543 | vol[2] = gMC->CurrentVolID(copy); | |
544 | vol[3] = copy; | |
545 | ||
d6fb41ac | 546 | static Int_t idV0R1 = gMC->VolId("V0R1"); |
547 | static Int_t idV0L1 = gMC->VolId("V0L1"); | |
548 | static Int_t idV0R2 = gMC->VolId("V0R2"); | |
549 | static Int_t idV0L2 = gMC->VolId("V0L2"); | |
550 | static Int_t idV0R3 = gMC->VolId("V0R3"); | |
551 | static Int_t idV0L3 = gMC->VolId("V0L3"); | |
552 | static Int_t idV0R4 = gMC->VolId("V0R4"); | |
553 | static Int_t idV0L4 = gMC->VolId("V0L4"); | |
554 | ||
555 | if ( gMC->CurrentVolID(copy) == idV0R1 || | |
556 | gMC->CurrentVolID(copy) == idV0L1 ) | |
79b41939 | 557 | ringNumber = 1.0; |
d6fb41ac | 558 | else if ( gMC->CurrentVolID(copy) == idV0R2 || |
559 | gMC->CurrentVolID(copy) == idV0L2 ) | |
79b41939 | 560 | ringNumber = 2.0; |
d6fb41ac | 561 | else if ( gMC->CurrentVolID(copy) == idV0R3 || |
562 | gMC->CurrentVolID(copy) == idV0L3 ) | |
79b41939 | 563 | ringNumber = 3.0; |
d6fb41ac | 564 | else if ( gMC->CurrentVolID(copy) == idV0R4 || |
565 | gMC->CurrentVolID(copy) == idV0L4 ) | |
79b41939 | 566 | ringNumber = 4.0; |
567 | else | |
568 | ringNumber = 0.0; | |
569 | ||
570 | if ( ringNumber > 0.5 ) { | |
571 | ||
572 | destep = gMC->Edep(); | |
573 | step = gMC->TrackStep(); | |
574 | ||
575 | nPhotonsInStep = Int_t(destep / (fLightYield *1e-9) ); | |
576 | nPhotonsInStep = gRandom->Poisson(nPhotonsInStep); | |
577 | ||
578 | eloss += destep; | |
579 | tlength += step; | |
580 | ||
581 | if ( gMC->IsTrackEntering() ) { | |
582 | ||
583 | nPhotons = nPhotonsInStep; | |
584 | gMC->TrackPosition(fTrackPosition); | |
585 | gMC->TrackMomentum(fTrackMomentum); | |
586 | ||
587 | Float_t pt = TMath::Sqrt( fTrackMomentum.Px() * fTrackMomentum.Px() + | |
588 | fTrackMomentum.Py() * fTrackMomentum.Py() ); | |
589 | ||
590 | hits[0] = fTrackPosition.X(); | |
591 | hits[1] = fTrackPosition.Y(); | |
592 | hits[2] = fTrackPosition.Z(); | |
593 | hits[3] = Float_t (gMC->TrackPid()); | |
594 | ||
595 | hits[4] = gMC->TrackTime(); | |
596 | hits[5] = gMC->TrackCharge(); | |
597 | hits[6] = fTrackMomentum.Theta()*TMath::RadToDeg(); | |
598 | hits[7] = fTrackMomentum.Phi()*TMath::RadToDeg(); | |
599 | hits[8] = ringNumber; | |
600 | ||
601 | hits[9] = pt; | |
602 | hits[10] = fTrackMomentum.P(); | |
603 | hits[11] = fTrackMomentum.Px(); | |
604 | hits[12] = fTrackMomentum.Py(); | |
605 | hits[13] = fTrackMomentum.Pz(); | |
606 | ||
607 | TParticle *par = gAlice->GetMCApp()->Particle(gAlice->GetMCApp()->GetCurrentTrackNumber()); | |
608 | hits[14] = par->Vx(); | |
609 | hits[15] = par->Vy(); | |
610 | hits[16] = par->Vz(); | |
611 | ||
612 | tlength = 0.0; | |
613 | eloss = 0.0; | |
614 | } | |
615 | ||
616 | nPhotons = nPhotons + nPhotonsInStep; | |
617 | ||
618 | if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){ | |
619 | ||
620 | nPhotons = nPhotons - Int_t((Float_t(nPhotons) * fLightAttenuation * fnMeters)); | |
621 | nPhotons = nPhotons - Int_t( Float_t(nPhotons) * fFibToPhot); | |
622 | ||
623 | hits[17] = eloss; | |
624 | hits[18] = tlength; | |
625 | hits[19] = nPhotons; | |
626 | hits[20] = GetCellId (vol, hits); | |
627 | ||
628 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits); | |
629 | ||
630 | tlength = 0.0; | |
631 | eloss = 0.0; | |
632 | nPhotons = 0; | |
633 | nPhotonsInStep = 0; | |
634 | ||
635 | numStep = 0; | |
636 | } | |
637 | } | |
638 | ||
639 | } | |
640 | ||
641 | //_____________________________________________________________________________ | |
642 | void AliVZEROv4::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
643 | { | |
644 | ||
645 | // Adds a VZERO hit | |
646 | ||
647 | TClonesArray &lhits = *fHits; | |
648 | new(lhits[fNhits++]) AliVZEROhit(fIshunt,track,vol,hits); | |
649 | } | |
650 | ||
651 | //_____________________________________________________________________________ | |
652 | void AliVZEROv4::AddDigits(Int_t *tracks, Int_t* digits) | |
653 | { | |
654 | ||
655 | // Adds a VZERO digit | |
656 | ||
657 | TClonesArray &ldigits = *fDigits; | |
658 | new(ldigits[fNdigits++]) AliVZEROdigit(tracks, digits); | |
659 | } | |
660 | ||
661 | //_____________________________________________________________________________ | |
662 | void AliVZEROv4::MakeBranch(Option_t *option) | |
663 | { | |
664 | ||
665 | // Creates new branches in the current Root Tree | |
666 | ||
667 | char branchname[10]; | |
668 | sprintf(branchname,"%s",GetName()); | |
254ef8f1 | 669 | AliDebug(2,Form("fBufferSize = %d",fBufferSize)); |
79b41939 | 670 | |
671 | const char *cH = strstr(option,"H"); | |
672 | ||
cb5b8b21 | 673 | if (fHits && fLoader->TreeH() && cH) { |
674 | fLoader->TreeH()->Branch(branchname,&fHits, fBufferSize); | |
254ef8f1 | 675 | AliDebug(2,Form("Making Branch %s for hits",branchname)); |
79b41939 | 676 | } |
677 | ||
678 | const char *cD = strstr(option,"D"); | |
679 | ||
680 | if (fDigits && fLoader->TreeD() && cD) { | |
681 | fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize); | |
254ef8f1 | 682 | AliDebug(2,Form("Making Branch %s for digits",branchname)); |
79b41939 | 683 | } |
684 | ||
685 | } | |
686 | ||
687 | //_____________________________________________________________________________ | |
688 | Int_t AliVZEROv4::GetCellId(Int_t *vol, Float_t *hits) | |
689 | { | |
690 | ||
691 | // Returns Id of scintillator cell | |
692 | // Right side from 0 to 47 | |
693 | // Left side from 48 to 95 | |
694 | ||
695 | Int_t index = vol[1]; | |
696 | fCellId = 0; | |
697 | ||
698 | if (index < 10) index = index + 12; | |
699 | ||
700 | if (hits[2] < 0.0) { | |
701 | index = (index - 10) + ( ( Int_t(hits[8]) - 1 ) * 12); | |
702 | fCellId = index; | |
703 | } | |
704 | else if (hits[2] > 0.0) | |
705 | { | |
706 | index = (index + 38) + ( ( Int_t(hits[8]) - 1 ) * 12); | |
707 | fCellId = index;} | |
708 | ||
709 | return fCellId; | |
710 | } |