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2fa82489 | 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 | /* $Id$ */ |
17 | ||
2fa82489 | 18 | ///////////////////////////////////////////////////////////////////// |
19 | // // | |
20 | // START ( T-zero) detector version 0 // | |
21 | // | |
22 | //Begin Html | |
23 | /* | |
24 | <img src="gif/AliSTARTv2Class.gif"> | |
25 | */ | |
26 | //End Html | |
27 | // // | |
28 | // // | |
29 | ////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | #define RIGHT_ARRAY 1 | |
32 | #define LEFT_ARRAY 2 | |
33 | ||
88cb7938 | 34 | #include <Riostream.h> |
35 | #include <stdlib.h> | |
36 | ||
2fa82489 | 37 | #include <TGeometry.h> |
2fa82489 | 38 | #include <TLorentzVector.h> |
88cb7938 | 39 | #include <TMath.h> |
40 | #include <TNode.h> | |
41 | #include <TTUBE.h> | |
42 | #include <TVirtualMC.h> | |
2fa82489 | 43 | |
2fa82489 | 44 | #include "AliMagF.h" |
88cb7938 | 45 | #include "AliRun.h" |
2fa82489 | 46 | #include "AliSTARThit.h" |
88cb7938 | 47 | #include "AliSTARTv2.h" |
5d12ce38 | 48 | #include "AliMC.h" |
88cb7938 | 49 | //#include "AliSTARThitPhoton.h" |
50 | //#include "TGeant3.h" | |
2fa82489 | 51 | |
52 | ClassImp(AliSTARTv2) | |
53 | ||
54 | ||
55 | ////////////////////////////////////////////////////////////////////// | |
56 | // Standart constructor for START Detector version 2 | |
57 | ////////////////////////////////////////////////////////////////////// | |
58 | AliSTARTv2::AliSTARTv2(const char *name, const char *title): | |
59 | AliSTART(name,title) | |
60 | { | |
61 | fIdSens1 = 0; | |
62 | // setBufferSize(128000); | |
63 | } | |
64 | ||
65 | ||
66 | ////////////////////////////////////////////////////////////////////// | |
67 | // Create the geometry of START Detector version 2 | |
68 | ////////////////////////////////////////////////////////////////////// | |
69 | void AliSTARTv2::CreateGeometry() | |
70 | { | |
71 | /* | |
72 | <img src="gif/AliSTARTv2.gif"> | |
73 | */ | |
74 | ||
75 | Int_t *idtmed; | |
76 | Int_t idrotm[999]; | |
77 | Int_t i, j; | |
78 | Float_t x, y, z; | |
79 | Float_t zRight; | |
80 | Float_t zLeft; | |
81 | Float_t phi[3]; | |
82 | Float_t theta; | |
83 | Double_t angel; | |
84 | ||
85 | Float_t pstart[3] = {4.5, 10.7, 5.3}; | |
86 | Float_t pinstart[3] = {0., 1.31, 5.25}; | |
87 | Float_t ppmt[3] = {0., 1.31, 3.5}; | |
88 | Float_t ptop[3] = {0., 1.3, 1.5}; | |
89 | // Float_t preg[3] = {0., 1.3, 0.005}; | |
90 | Float_t preg[3] = {0., 0.875, 0.005}; | |
91 | Float_t pdes[3] = {0.875, 1.3, 0.005}; | |
92 | ||
93 | ||
94 | zRight = 75.; | |
95 | zLeft = 350.; | |
96 | theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zRight); | |
97 | angel = 2 * TMath::Pi() / 12; | |
98 | idtmed = fIdtmed->GetArray(); | |
99 | ||
100 | ||
101 | AliMatrix (idrotm[901], 90., 0., 90., 90., 180., 0.); | |
102 | ||
103 | gMC->Gsvolu ("0RST", "TUBE", idtmed[3], pstart, 3); | |
104 | gMC->Gsvolu ("0LST", "TUBE", idtmed[3], pstart, 3); | |
1663993c | 105 | gMC->Gspos ("0RST", 1, "ALIC", 0., 0., -zRight, 0, "ONLY"); |
106 | gMC->Gspos ("0LST", 1, "ALIC", 0., 0., zLeft, idrotm[901], "ONLY"); | |
2fa82489 | 107 | |
108 | // 12 unit: PMT + divider | |
109 | gMC->Gsvolu("0INS", "TUBE", idtmed[3], pinstart, 3); | |
110 | z = 0; | |
111 | for (i = 0; i < 12; i++) | |
112 | { | |
113 | x = 6.5 * TMath::Sin(i * angel); | |
114 | y = 6.5 * TMath::Cos(i * angel); | |
115 | ||
116 | phi[0] = -30 * i; | |
117 | phi[1] = 90 - i * 30; | |
118 | phi[2] = 90 - i * 30; | |
119 | for (j = 0; j < 3; j++) | |
120 | if (phi[j] < 0) phi[j] += 360; | |
121 | ||
122 | AliMatrix (idrotm[902 + i], 90., phi[0], | |
123 | 90. + theta, phi[1], | |
124 | theta, phi[2]); | |
125 | ||
126 | gMC->Gspos ("0INS", i + 1, "0RST", x, y, z, idrotm[902 + i], "ONLY"); | |
127 | gMC->Gspos ("0INS", i + 13, "0LST", x, y, z, 0, "ONLY"); | |
128 | } | |
129 | ||
130 | gMC->Gsvolu ("0PMT", "TUBE", idtmed[1], ppmt, 3); | |
131 | x = y = 0; | |
132 | z = -pinstart[2] + ppmt[2]; | |
133 | gMC->Gspos ("0PMT", 1, "0INS", x, y, z, 0, "ONLY"); | |
134 | ||
135 | // PMT | |
136 | // Entry window (glass) | |
137 | gMC->Gsvolu ("0TOP", "TUBE", idtmed[6], ptop, 3); | |
138 | z = -ppmt[2] + ptop[2]; | |
139 | gMC->Gspos ("0TOP", 1, "0PMT", 0, 0, z, 0, "ONLY"); | |
140 | ||
141 | gMC->Gsvolu ("0REG", "TUBE", idtmed[6], preg, 3); | |
142 | z = -ppmt[2] + 2 * ptop[2] + preg[2]; | |
143 | gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); | |
144 | ||
145 | gMC->Gsvolu ("0DES", "TUBE", idtmed[6], pdes, 3); | |
146 | z = -ppmt[2] + 2 * ptop[2] + preg[2]; | |
147 | gMC->Gspos ("0DES", 1, "0PMT", 0, 0, z, 0, "ONLY"); | |
148 | } | |
149 | ||
150 | ||
151 | ////////////////////////////////////////////////////////////////////// | |
152 | // Definition of avaible START materials | |
153 | ////////////////////////////////////////////////////////////////////// | |
154 | void AliSTARTv2::CreateMaterials() | |
155 | { | |
156 | Int_t isxfld = gAlice->Field()->Integ(); | |
157 | Float_t sxmgmx = gAlice->Field()->Max(); | |
158 | ||
159 | Float_t a, z, d, radl, absl, buf[1]; | |
160 | Int_t nbuf; | |
161 | ||
162 | // Scintillator CH | |
163 | Float_t ascin[2] = {1.01, 12.01}; | |
164 | Float_t zscin[2] = {1., 6.}; | |
165 | Float_t wscin[2] = {1., 1.}; | |
166 | Float_t denscin = 1.03; | |
167 | ||
168 | // PMT glass SiO2 | |
169 | Float_t aglass[2] = {28.0855, 15.9994}; | |
170 | Float_t zglass[2] = {14., 8.}; | |
171 | Float_t wglass[2] = { 1., 2.}; | |
172 | Float_t dglass = 2.65; | |
173 | ||
174 | // Ceramic 97.2% Al2O3 , 2.8% SiO2 | |
175 | Float_t acer[2], zcer[2]; | |
176 | Float_t wcer[2] = { 0.972, 0.028}; | |
177 | Float_t aal2o3[2] = {26.981539, 15.9994 }; | |
178 | Float_t zal2o3[2] = {13., 8.}; | |
179 | Float_t wal2o3[2] = { 2., 3.}; | |
180 | Float_t denscer = 3.6; | |
181 | ||
182 | // Brass 80% Cu, 20% Zn | |
183 | Float_t abrass[2] = {63.546, 65.39}; | |
184 | Float_t zbrass[2] = {29., 30.}; | |
185 | Float_t wbrass[2] = { 0.8, 0.2}; | |
186 | Float_t denbrass = 8.96; | |
187 | ||
188 | //Ribber C6H12S | |
189 | Float_t aribber[3] = {12., 1., 32.}; | |
190 | Float_t zribber[3] = { 6., 1., 16.}; | |
191 | Float_t wribber[3] = { 6., 12., 1.}; | |
192 | Float_t denribber = 0.8; | |
193 | ||
194 | // Definition Cherenkov parameters | |
195 | const Int_t NUMENTRIES = 32; | |
196 | ||
197 | Float_t ppckov[NUMENTRIES] = | |
198 | { 2.034E-9, 2.068E-9, 2.103E-9, 2.139E-9, | |
199 | 2.177E-9, 2.216E-9, 2.256E-9, 2.298E-9, | |
200 | 2.341E-9, 2.386E-9, 2.433E-9, 2.481E-9, | |
201 | 2.532E-9, 2.585E-9, 2.640E-9, 2.697E-9, | |
202 | 2.757E-9, 2.820E-9, 2.885E-9, 2.954E-9, | |
203 | 3.026E-9, 3.102E-9, 3.181E-9, 3.265E-9, | |
204 | 3.353E-9, 3.446E-9, 3.545E-9, 3.649E-9, | |
205 | 3.760E-9, 3.877E-9, 4.002E-9, 4.136E-9 }; | |
206 | ||
207 | Float_t rindex_qwarz[NUMENTRIES] = | |
208 | { 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, | |
209 | 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, | |
210 | 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, | |
211 | 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, | |
212 | 1.458, 1.458, 1.458, 1.458 }; | |
213 | ||
214 | Float_t rindex_air[NUMENTRIES] = | |
215 | { 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., | |
216 | 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., | |
217 | 1., 1., 1., 1. }; | |
218 | ||
219 | Float_t effic_all[NUMENTRIES] = | |
220 | { 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., | |
221 | 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., | |
222 | 1., 1., 1., 1. }; | |
223 | ||
224 | Float_t absor_qwarz[NUMENTRIES] = | |
225 | { 2000., 2000., 2000., 2000., 2000., 2000., 2000., | |
226 | 2000., 2000., 2000., 2000., 2000., 2000., 2000., | |
227 | 2000., 2000., 2000., 2000., 2000., 2000., 2000., | |
228 | 2000., 2000., 2000., 2000., 2000., 2000., 2000., | |
229 | 2000., 2000., 2000., 2000. }; | |
230 | ||
231 | Float_t absor_air[NUMENTRIES] = | |
232 | { 200., 200., 200., 200., 200., 200., 200., | |
233 | 200., 200., 200., 200., 200., 200., 200., | |
234 | 200., 200., 200., 200., 200., 200., 200., | |
235 | 200., 200., 200., 200., 200., 200., 200., | |
236 | 200., 200., 200., 200. }; | |
237 | ||
238 | Int_t *idtmed = fIdtmed->GetArray(); | |
239 | ||
240 | ||
241 | AliMaterial (0, "START Steel$", 55.850, 26., 7.87, 1.76, 999); | |
242 | AliMaterial (1, "START Vacuum$", 1.e-16, 1.e-16, 1.e-16, 1.e16, 999); | |
243 | AliMaterial (2, "START Air$", 14.61, 7.3, .001205, 30423., 999); | |
244 | ||
245 | AliMixture (3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3); | |
246 | AliMixture (4, "PMT glass $", aglass, zglass, dglass, -2, wglass); | |
00d6d986 | 247 | char namate[21]=""; |
2fa82489 | 248 | gMC->Gfmate ((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); |
249 | acer[0] = a; | |
250 | zcer[0] = z; | |
251 | gMC->Gfmate ((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf); | |
252 | acer[1] = a; | |
253 | zcer[1] = z; | |
254 | ||
255 | AliMixture (5, "Scintillator$",ascin,zscin,denscin,-2,wscin); | |
256 | AliMixture (6, "Brass $", abrass, zbrass, denbrass, 2, wbrass); | |
257 | AliMixture (7, "Ribber $",aribber,zribber,denribber,-3,wribber); | |
258 | AliMixture (9, "Ceramic $", acer, zcer, denscer, 2, wcer); | |
259 | ||
260 | AliMedium (1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003); | |
261 | AliMedium (2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003); | |
262 | AliMedium (3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
263 | AliMedium (4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
264 | AliMedium (6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
265 | AliMedium (8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
266 | AliMedium (9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
267 | AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
268 | ||
269 | gMC->SetCerenkov (idtmed[6], NUMENTRIES, ppckov, absor_qwarz, effic_all, rindex_qwarz); | |
270 | gMC->SetCerenkov (idtmed[1], NUMENTRIES, ppckov, absor_air, effic_all, rindex_air); | |
271 | } | |
272 | ||
273 | ||
274 | ////////////////////////////////////////////////////////////////////// | |
275 | // Draw a shaded view of the Forward multiplicity detector version 2 | |
276 | ////////////////////////////////////////////////////////////////////// | |
ba380e33 | 277 | void AliSTARTv2::DrawModule() const |
2fa82489 | 278 | { |
279 | //Set ALIC mother transparent | |
280 | gMC->Gsatt ("ALIC", "SEEN", 0); | |
281 | ||
282 | //Set volumes visible | |
283 | gMC->Gsatt ("0STA", "SEEN", 0); | |
284 | gMC->Gsatt ("0PMT", "SEEN", 1); | |
285 | gMC->Gsatt ("0DIV", "SEEN", 1); | |
286 | ||
287 | gMC->Gdopt ("hide", "on"); | |
288 | gMC->Gdopt ("shad", "on"); | |
289 | gMC->SetClipBox ("."); | |
290 | gMC->SetClipBox ("*", 0, 1000, -1000, 1000, -1000, 1000); | |
291 | gMC->DefaultRange(); | |
292 | gMC->Gdraw ("alic", 40, 30, 0, 12, 9.5, 0.7, 0.7); | |
293 | gMC->Gdhead (1111, "T-Zero detector"); | |
294 | gMC->Gdopt ("hide", "off"); | |
295 | } | |
296 | ||
297 | ||
298 | ////////////////////////////////////////////////////////////////////// | |
299 | // Initialises version 2 of the Forward Multiplicity Detector | |
300 | ////////////////////////////////////////////////////////////////////// | |
301 | void AliSTARTv2::Init() | |
302 | { | |
303 | //Int_t *idtmed = gAlice->Idtmed(); | |
304 | ||
305 | AliSTART::Init(); | |
306 | fIdSens1 = gMC->VolId ("0REG"); | |
307 | ||
308 | printf ("*** START version 2 initialized ***\n"); | |
309 | } | |
310 | ||
311 | ||
312 | ////////////////////////////////////////////////////////////////////// | |
313 | // Called for every step in the START Detector | |
314 | ////////////////////////////////////////////////////////////////////// | |
315 | void AliSTARTv2::StepManager() | |
316 | { | |
317 | Int_t id; | |
318 | Int_t copy; | |
319 | // Int_t copy1; | |
320 | Float_t xyz[3]; | |
321 | Float_t XYZ[3]; | |
322 | Float_t hitPhoton[6]; | |
323 | static Float_t hits[7]; | |
324 | static Float_t edep; | |
325 | static Int_t vol[2]; | |
326 | TLorentzVector pos; | |
327 | TLorentzVector mom; | |
328 | ||
329 | ||
330 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
331 | ||
332 | // TGeant3 *g3 = (TGeant3*) gMC; | |
333 | // g3->Gpcxyz(); | |
334 | ||
335 | TClonesArray &lhits = *fHits; | |
336 | ||
337 | ||
338 | /////////////////////////////////////////////// | |
339 | // If particles is photon then ... | |
340 | ||
341 | if (gMC->TrackPid() == 50000050) | |
342 | { | |
343 | id = gMC->CurrentVolID(copy); | |
344 | ||
345 | // Check the sensetive volume | |
346 | if (id == fIdSens1) | |
347 | { | |
348 | if (gMC->IsTrackEntering()) | |
349 | { | |
350 | gMC->CurrentVolOffID(2,copy); | |
351 | if (copy < 13) | |
352 | { | |
353 | vol[0] = RIGHT_ARRAY; | |
354 | vol[1] = copy; | |
355 | } | |
356 | else | |
357 | { | |
358 | vol[0] = LEFT_ARRAY; | |
359 | vol[1] = copy - 12; | |
360 | } | |
361 | ||
362 | gMC->TrackPosition(pos); | |
363 | gMC->TrackMomentum(mom); | |
364 | XYZ[0] = pos[0]; | |
365 | XYZ[1] = pos[1]; | |
366 | XYZ[2] = pos[2]; | |
367 | gMC->Gmtod (XYZ, xyz, 1); | |
368 | ||
369 | hitPhoton[0] = sqrt (xyz[0] * xyz[0] + xyz[1] * xyz[1]); | |
370 | hitPhoton[1] = mom[0]; | |
371 | hitPhoton[2] = mom[1]; | |
372 | hitPhoton[3] = mom[2]; | |
373 | hitPhoton[4] = 1e9 * gMC->TrackTime(); | |
374 | hitPhoton[5] = 1e9 * gMC->Etot(); | |
375 | ||
5d12ce38 | 376 | AddHitPhoton (gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hitPhoton); |
2fa82489 | 377 | } |
378 | gMC->StopTrack(); | |
379 | } | |
380 | else | |
381 | if (id == gMC->VolId ("0DES")) gMC->StopTrack(); | |
382 | } | |
383 | ||
384 | // end photon particalary | |
385 | /////////////////////////////////////////////// | |
386 | ||
387 | ||
388 | /////////////////////////////////////////////// | |
389 | // If particles is charge then ... | |
390 | ||
391 | // Float_t charge = gMC->TrackCharge(); | |
392 | // if(TMath::Abs(charge) <= 0.) return; | |
393 | id = gMC->CurrentVolID(copy); | |
394 | ||
395 | ||
396 | // printf("gMC->ckine->ipart %d",gMC->ckine->ipart); | |
397 | // Check the sensetive volume | |
398 | if(id==gMC->VolId("0TOP") ) { | |
399 | if(gMC->IsTrackEntering()) { | |
400 | gMC->CurrentVolOffID(2,copy); | |
401 | if (copy < 13) | |
402 | { | |
403 | vol[0] = RIGHT_ARRAY; | |
404 | vol[1] = copy; | |
405 | } | |
406 | else | |
407 | { | |
408 | vol[0] = LEFT_ARRAY; | |
409 | vol[1] = copy - 12; | |
410 | } | |
411 | ||
412 | gMC->TrackPosition(pos); | |
413 | hits[0] = pos[0]; | |
414 | hits[1] = pos[1]; | |
415 | hits[2] = pos[2]; | |
416 | Float_t etot = gMC->Etot(); | |
417 | hits[4] = etot; | |
418 | Int_t part = gMC->TrackPid(); | |
419 | hits[5] = part; | |
420 | Float_t ttime = gMC->TrackTime(); | |
421 | hits[6] = ttime*1e9; | |
422 | edep = 0; | |
423 | } | |
424 | if(gMC->IsTrackInside()) { | |
425 | Float_t de = gMC->Edep(); | |
426 | edep = edep + de; | |
427 | // printf ("E deposition %f\n",edep); | |
428 | // for (i=0; i<=6; i++){ | |
429 | // printf(" HITS on START inside %f\n",hits[i]); } | |
430 | } | |
431 | if(gMC->IsTrackExiting()) { | |
432 | Float_t de = gMC->Edep(); | |
433 | edep = edep + de; | |
434 | hits[3] = edep * 1e3; | |
435 | ||
436 | // for (i=0; i<=6; i++){ | |
437 | // printf(" HITS on START Exit %f\n",hits[i]); } | |
438 | //for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);} | |
439 | ||
5d12ce38 | 440 | new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits); |
2fa82489 | 441 | } |
442 | } | |
443 | ||
444 | // end charge particles particalary | |
445 | /////////////////////////////////////////////// | |
446 | ||
447 | } |