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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
a5371c42 | 18 | Revision 1.14 1999/10/08 06:27:23 fca |
19 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
20 | ||
d183a600 | 21 | Revision 1.13 1999/10/04 13:39:54 fca |
22 | Correct array index problem | |
23 | ||
cdde5b1e | 24 | Revision 1.12 1999/09/29 09:24:34 fca |
25 | Introduction of the Copyright and cvs Log | |
26 | ||
4c039060 | 27 | */ |
28 | ||
fe4da5cc | 29 | /////////////////////////////////////////////////////////////////////////////// |
30 | // // | |
31 | // Time Projection Chamber version 1 -- detailed TPC and fast simulation // | |
32 | // // | |
33 | //Begin_Html | |
34 | /* | |
1439f98e | 35 | <img src="picts/AliTPCv1Class.gif"> |
fe4da5cc | 36 | */ |
37 | //End_Html | |
38 | // // | |
39 | // // | |
40 | /////////////////////////////////////////////////////////////////////////////// | |
41 | ||
42 | #include <TMath.h> | |
43 | #include <TGeometry.h> | |
44 | #include <TNode.h> | |
45 | #include <TBRIK.h> | |
46 | #include <TTUBE.h> | |
47 | #include "AliTPCv1.h" | |
48 | #include "AliRun.h" | |
49 | #include <iostream.h> | |
50 | #include <fstream.h> | |
51 | ||
52 | #include "AliMC.h" | |
53 | #include "AliConst.h" | |
54 | ||
8c555625 | 55 | #include "AliTPCParam.h" |
56 | #include "AliTPCD.h" | |
57 | ||
fe4da5cc | 58 | ClassImp(AliTPCv1) |
59 | ||
60 | //_____________________________________________________________________________ | |
61 | AliTPCv1::AliTPCv1(const char *name, const char *title) | |
62 | :AliTPC(name, title) { | |
63 | // | |
64 | // Standard constructor for Time Projection Chamber | |
65 | // | |
66 | fIdSens1=fIdSens2=0; | |
67 | } | |
68 | ||
69 | //_____________________________________________________________________________ | |
70 | void AliTPCv1::CreateGeometry() | |
71 | { | |
72 | // | |
73 | // Creates geometry for Time Projection Chamber version 1 | |
74 | // Detailed geometry -- Fast simulation | |
75 | // Origin M.Kowalski | |
76 | // | |
77 | //Begin_Html | |
78 | /* | |
1439f98e | 79 | <img src="picts/AliTPCv1.gif"> |
fe4da5cc | 80 | */ |
81 | //End_Html | |
82 | //Begin_Html | |
83 | /* | |
1439f98e | 84 | <img src="picts/AliTPCv1Tree.gif"> |
fe4da5cc | 85 | */ |
86 | //End_Html | |
87 | ||
1283eee5 | 88 | AliTPCParam * fTPCParam = &(fDigParam->GetParam()); |
8c555625 | 89 | |
1283eee5 | 90 | Int_t *idtmed = fIdtmed->GetArray(); |
8c555625 | 91 | |
1283eee5 | 92 | Float_t dm[21]; |
62a73ee5 | 93 | Int_t idrotm[120]; |
1283eee5 | 94 | |
95 | Int_t nRotMat = 0; | |
96 | ||
97 | ||
fe4da5cc | 98 | // ---------------------------------------------------- |
1283eee5 | 99 | // FIELD CAGE WITH ENDCAPS - G10 |
fe4da5cc | 100 | // THIS IS ALSO A TPC MOTHER VOLUME |
101 | // ---------------------------------------------------- | |
1283eee5 | 102 | |
fe4da5cc | 103 | dm[0] = 76.; |
104 | dm[1] = 278.; | |
105 | dm[2] = 275.; | |
1283eee5 | 106 | |
107 | gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3); | |
108 | ||
109 | //----------------------------------------------------- | |
110 | // Endcap cover c-fibre 0.86% X0 | |
111 | //----------------------------------------------------- | |
112 | ||
113 | dm[0] = 78.; | |
114 | dm[1] = 258.; | |
115 | dm[2] = 0.95; | |
116 | ||
117 | gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3); | |
118 | ||
119 | //----------------------------------------------------- | |
120 | // Drift gas , leave 2 cm at the outer radius | |
121 | // and inner raddius | |
122 | //----------------------------------------------------- | |
123 | ||
124 | dm[0] = 78.; | |
125 | dm[1] = 258.; | |
fe4da5cc | 126 | dm[2] = 250.; |
fe4da5cc | 127 | |
1283eee5 | 128 | gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3); |
129 | ||
130 | ||
131 | //------------------------------------------------------ | |
132 | // membrane holder - carbon fiber | |
133 | //------------------------------------------------------ | |
134 | ||
135 | ||
136 | gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0); | |
137 | ||
138 | dm[0] = 252.; | |
139 | dm[1] = 258.; | |
140 | dm[2] = 0.2; | |
141 | ||
142 | gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
143 | ||
144 | dm[0] = 78.; | |
cdde5b1e | 145 | dm[1] = 82.; |
1283eee5 | 146 | dm[2] = 0.1; |
147 | ||
148 | gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
149 | ||
150 | //---------------------------------------------------------- | |
151 | // HV membrane - 25 microns of mylar | |
152 | //---------------------------------------------------------- | |
153 | ||
154 | dm[0] = 82.; | |
155 | dm[1] = 252.; | |
156 | dm[2] = 0.00125; | |
157 | ||
158 | gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3); | |
159 | ||
160 | gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY"); | |
161 | ||
162 | gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
163 | ||
164 | //---------------------------------------------------------- | |
165 | // "side" gas volume, the same as the drift gas | |
166 | // the readout chambers are placed there. | |
167 | //---------------------------------------------------------- | |
168 | ||
169 | dm[0] = 78.; | |
170 | dm[1] = 258.; | |
171 | dm[2] = 0.5*(275. - 250.); | |
172 | ||
173 | gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3); | |
174 | ||
175 | Float_t z_side = dm[2]; // 1/2 of the side gas thickness | |
176 | ||
177 | //----------------------------------------------------------- | |
178 | // Readout chambers , 25% of X0, I use Al as the material | |
179 | //----------------------------------------------------------- | |
180 | ||
181 | Float_t InnerOpenAngle = fTPCParam->GetInnerAngle(); | |
182 | Float_t OuterOpenAngle = fTPCParam->GetOuterAngle(); | |
183 | ||
184 | Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift(); | |
185 | Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift(); | |
186 | ||
187 | ||
188 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; | |
189 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
190 | ||
191 | ||
192 | Float_t InSecLowEdge = fTPCParam->GetInSecLowEdge(); | |
193 | Float_t InSecUpEdge = fTPCParam->GetInSecUpEdge(); | |
194 | ||
195 | Float_t OuSecLowEdge = fTPCParam->GetOuSecLowEdge(); | |
196 | Float_t OuSecUpEdge = fTPCParam->GetOuSecUpEdge(); | |
197 | ||
198 | Float_t SecThick = 2.225; // Al | |
199 | ||
200 | Float_t edge = fTPCParam->GetEdge(); | |
201 | ||
202 | // S (Inner) sectors | |
203 | ||
204 | dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-edge; | |
205 | dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-edge; | |
206 | dm[2] = 0.5*SecThick; | |
207 | dm[3] = 0.5*(InSecUpEdge-InSecLowEdge); | |
208 | ||
209 | Float_t xCenterS = InSecLowEdge+dm[3]; | |
210 | ||
211 | gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4); | |
212 | ||
213 | // L (Outer) sectors | |
214 | ||
215 | dm[0] = OuSecLowEdge*TMath::Tan(0.5*OuterOpenAngle)-edge; | |
216 | dm[1] = OuSecUpEdge*TMath::Tan(0.5*OuterOpenAngle)-edge; | |
217 | dm[2] = 0.5*SecThick; | |
218 | dm[3] = 0.5*(OuSecUpEdge-OuSecLowEdge); | |
219 | ||
220 | Float_t xCenterL = OuSecLowEdge+dm[3]; | |
221 | ||
222 | gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4); | |
223 | ||
224 | Float_t z1 = -z_side + SecThick*0.5; | |
225 | ||
226 | //------------------------------------------------------------------ | |
227 | // S sectors - "gas sectors" (TRD1) | |
228 | //------------------------------------------------------------------ | |
229 | ||
230 | dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01; | |
231 | dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01; | |
232 | dm[2] = 0.5*(250. - 0.001); | |
233 | dm[3] = 0.5*(InSecUpEdge-InSecLowEdge); | |
234 | ||
235 | gMC->Gsvolu("TSGA", "TRD1", idtmed[3], dm, 4); // nonsensitive | |
236 | ||
237 | //------------------------------------------------------------------ | |
238 | // sensitive strips - "pad rows" | |
239 | //------------------------------------------------------------------ | |
240 | ||
241 | Int_t ns; | |
242 | Float_t r1,r2,zz; | |
243 | ||
244 | Float_t StripThick = 0.01; // 100 microns | |
245 | Float_t dead = fTPCParam->GetDeadZone(); | |
246 | ||
247 | gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0); | |
248 | ||
249 | dm[2] = 0.5*(250. - 0.002); | |
250 | dm[3] = 0.5 * StripThick; | |
251 | ||
8c555625 | 252 | |
1283eee5 | 253 | // S-sector |
8c555625 | 254 | |
1283eee5 | 255 | for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) { |
256 | ||
257 | r1 = fTPCParam->GetPadRowRadiiLow(ns); | |
258 | r2 = r1 + StripThick; | |
259 | dm[0] = r1 * TMath::Tan(0.5*InnerOpenAngle) - dead; | |
260 | dm[1] = r2 * TMath::Tan(0.5*InnerOpenAngle) - dead; | |
261 | ||
262 | zz = -InSecLowEdge -0.5*(InSecUpEdge-InSecLowEdge); | |
263 | zz += r1; | |
264 | zz += dm[3]; | |
265 | ||
266 | gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4); | |
267 | ||
8c555625 | 268 | |
fe4da5cc | 269 | } |
8c555625 | 270 | |
1283eee5 | 271 | //----------------------------------------------------------------- |
272 | // L sectors - "gas sectors" (PGON to avoid overlaps) | |
273 | //----------------------------------------------------------------- | |
274 | ||
275 | dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle; | |
276 | dm[0] *= kRaddeg; | |
277 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
278 | ||
279 | dm[1] = OuterOpenAngle*kRaddeg; | |
280 | dm[1] = (Float_t)TMath::Nint(dm[1]); | |
281 | ||
282 | dm[2] = 1.; | |
283 | dm[3] = 4.; | |
284 | ||
285 | dm[4] = 0.002; | |
286 | dm[5] = OuSecLowEdge; | |
287 | dm[6] = 252.*TMath::Cos(0.5*OuterOpenAngle)-0.002; | |
288 | ||
289 | dm[7] = dm[4]+0.2; | |
290 | dm[8] = dm[5]; | |
291 | dm[9] = dm[6]; | |
292 | ||
293 | dm[10] = dm[7]; | |
294 | dm[11] = OuSecLowEdge; | |
295 | dm[12] = OuSecUpEdge; | |
296 | ||
297 | dm[13] = 250.; | |
298 | dm[14] = dm[11]; | |
299 | dm[15] = dm[12]; | |
300 | ||
301 | gMC->Gsvolu("TLGA","PGON",idtmed[3],dm,16); | |
302 | ||
303 | //------------------------------------------------------------------ | |
304 | // sensitive strips - "pad rows" | |
305 | //------------------------------------------------------------------ | |
306 | ||
307 | Float_t rmax = dm[6]; | |
308 | ||
309 | // L-sectors | |
310 | ||
311 | gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0); | |
312 | ||
313 | dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle; | |
314 | dm[0] *= kRaddeg; | |
315 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
316 | ||
317 | dm[1] = OuterOpenAngle*kRaddeg; | |
318 | dm[1] = (Float_t)TMath::Nint(dm[1]); | |
319 | ||
320 | dm[2] = 1.; | |
321 | dm[3] = 2.; | |
322 | ||
323 | dm[7] = 250.; | |
324 | ||
325 | Float_t xx = dead/TMath::Tan(0.5*OuterOpenAngle); | |
326 | ||
327 | for(ns=0;ns<fTPCParam->GetNRowUp();ns++){ | |
328 | ||
329 | r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx; | |
330 | r2 = r1 + StripThick; | |
8c555625 | 331 | |
1283eee5 | 332 | dm[5] = r1; |
333 | dm[6] = r2; | |
334 | ||
335 | dm[8] = r1; | |
336 | dm[9] = r2; | |
337 | ||
338 | if(r2+xx < rmax){ | |
339 | dm[4] = 0.002; | |
340 | } | |
341 | else{ | |
342 | dm[4] = 0.202; | |
343 | } | |
344 | ||
345 | gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10); | |
8c555625 | 346 | |
fe4da5cc | 347 | } |
fe4da5cc | 348 | |
1283eee5 | 349 | //------------------------------------------------------------------ |
350 | // Positioning of the S-sector readout chambers | |
351 | //------------------------------------------------------------------ | |
352 | ||
353 | Float_t zs = 0.5*(250.+0.002); | |
354 | ||
355 | Float_t theta1,theta2,theta3; | |
356 | Float_t phi1,phi2,phi3; | |
357 | Float_t alpha; | |
358 | Float_t x,y; | |
359 | ||
360 | for(ns=0;ns<nInnerSector;ns++){ | |
361 | ||
362 | phi1 = ns * InnerOpenAngle + 270.*kDegrad + InnerAngleShift; | |
363 | phi1 *= kRaddeg; // in degrees | |
364 | ||
365 | phi1 = (Float_t)TMath::Nint(phi1); | |
366 | ||
367 | if (phi1 > 360.) phi1 -= 360.; | |
62a73ee5 | 368 | |
1283eee5 | 369 | |
fe4da5cc | 370 | theta1 = 90.; |
371 | phi2 = 90.; | |
372 | theta2 = 180.; | |
1283eee5 | 373 | phi3 = ns * InnerOpenAngle + InnerAngleShift; |
374 | phi3 *= kRaddeg; // in degrees | |
375 | ||
376 | phi3 = (Float_t)TMath::Nint(phi3); | |
377 | ||
378 | if(phi3 > 360.) phi3 -= 360.; | |
379 | ||
fe4da5cc | 380 | theta3 = 90.; |
1283eee5 | 381 | |
382 | alpha = phi3*kDegrad; | |
383 | ||
384 | x = xCenterS * TMath::Cos(alpha); | |
385 | y = xCenterS * TMath::Sin(alpha); | |
386 | ||
387 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
388 | ||
389 | gMC->Gspos("TRCS", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
390 | ||
391 | gMC->Gspos("TSGA",ns+1,"TGAS",x,y,zs,idrotm[nRotMat], "ONLY"); | |
392 | gMC->Gspos("TSGA",ns+1+nInnerSector,"TGAS",x,y,-zs,idrotm[nRotMat], "ONLY"); | |
393 | ||
394 | nRotMat++; | |
395 | ||
396 | } | |
fe4da5cc | 397 | |
1283eee5 | 398 | //------------------------------------------------------------------- |
399 | // Positioning of the L-sectors readout chambers | |
400 | //------------------------------------------------------------------- | |
fe4da5cc | 401 | |
1283eee5 | 402 | for(ns=0;ns<nOuterSector;ns++){ |
403 | phi1 = ns * OuterOpenAngle + 270.*kDegrad + OuterAngleShift; | |
404 | phi1 *= kRaddeg; // in degrees | |
fe4da5cc | 405 | |
1283eee5 | 406 | phi1 = (Float_t)TMath::Nint(phi1); |
fe4da5cc | 407 | |
1283eee5 | 408 | |
409 | if (phi1 > 360.) phi1 -= 360.; | |
410 | ||
fe4da5cc | 411 | theta1 = 90.; |
412 | phi2 = 90.; | |
413 | theta2 = 180.; | |
1283eee5 | 414 | phi3 = ns * OuterOpenAngle+OuterAngleShift; |
415 | phi3 *= kRaddeg; // in degrees | |
416 | ||
417 | phi3 = (Float_t)TMath::Nint(phi3); | |
418 | ||
419 | ||
420 | if(phi3 > 360.) phi3 -= 360.; | |
421 | ||
fe4da5cc | 422 | theta3 = 90.; |
1283eee5 | 423 | |
424 | alpha = phi3*kDegrad; | |
425 | ||
426 | x = xCenterL * TMath::Cos(alpha); | |
427 | y = xCenterL * TMath::Sin(alpha); | |
428 | ||
429 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
430 | ||
431 | ||
432 | gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
433 | ||
434 | nRotMat++; | |
435 | ||
fe4da5cc | 436 | } |
fe4da5cc | 437 | |
1283eee5 | 438 | //------------------------------------------------------------------- |
439 | // Positioning of the L-sectors (gas sectors) | |
440 | //------------------------------------------------------------------- | |
441 | ||
442 | for(ns=0;ns<nOuterSector;ns++){ | |
443 | ||
444 | phi1 = ns*OuterOpenAngle + OuterAngleShift; | |
445 | phi1 *= kRaddeg; | |
446 | ||
447 | phi1 = (Float_t)TMath::Nint(phi1); | |
448 | if(phi1>360.) phi1 -= 360.; | |
449 | ||
450 | theta1 = 90.; | |
451 | ||
452 | phi2 = 90. + phi1; | |
453 | if(phi2>360.) phi2 -= 360.; | |
454 | ||
455 | theta2 = 90.; | |
456 | ||
457 | phi3 = 0.; | |
458 | theta3 = 0.; | |
459 | ||
460 | alpha = phi1*kDegrad; | |
461 | ||
462 | ||
463 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
464 | ||
465 | ||
466 | gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
467 | ||
468 | nRotMat++; | |
469 | ||
470 | // reflection !! | |
471 | ||
472 | phi3 = 0.; | |
473 | theta3 = 180.; | |
474 | ||
475 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
476 | ||
477 | gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
478 | ||
479 | nRotMat++; | |
480 | } | |
fe4da5cc | 481 | |
1283eee5 | 482 | Float_t z0 = z_side - 0.95; |
483 | ||
484 | gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
485 | ||
fe4da5cc | 486 | // ========================================================== |
487 | // wheels | |
488 | // ========================================================== | |
1283eee5 | 489 | |
490 | // | |
491 | // auxilary structures | |
492 | // | |
493 | ||
494 | ||
495 | gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air" | |
496 | ||
fe4da5cc | 497 | // ---------------------------------------------------------- |
498 | // Large wheel -> positioned in the TPC | |
499 | // ---------------------------------------------------------- | |
1283eee5 | 500 | |
501 | ||
502 | z0 = 263.5; // TPC length - 1/2 spoke wheel width | |
503 | ||
504 | dm[0] = 258.; | |
fe4da5cc | 505 | dm[1] = 278.; |
506 | dm[2] = 11.5; | |
fe4da5cc | 507 | |
1283eee5 | 508 | gMC->Gsvolu("TPWL", "TUBE", idtmed[0], dm, 3); |
509 | ||
510 | dm[0] = dm[0]+2.; | |
511 | dm[1] = 278.; | |
512 | dm[2] = dm[2]-2.; | |
513 | ||
514 | gMC->Gsposp("TPWI",1,"TPWL",0.,0.,0.,0,"ONLY",dm,3); | |
515 | ||
516 | gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY"); | |
517 | gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY"); | |
518 | ||
519 | // | |
520 | // Outer vessel + CO2 HV degrader | |
521 | // | |
522 | ||
523 | dm[0] = 260.; | |
524 | dm[1] = 278.; | |
525 | dm[2] = 252.; | |
526 | ||
527 | gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3); | |
528 | ||
529 | dm[0] = 275.; | |
fe4da5cc | 530 | dm[1] = 278.; |
fe4da5cc | 531 | |
1283eee5 | 532 | gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3); |
533 | ||
534 | gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY"); | |
535 | ||
536 | ||
537 | // G10 plugs | |
538 | ||
539 | dm[0] = 258.; | |
540 | dm[1] = 260.; | |
541 | dm[2] = 1.; | |
542 | ||
543 | gMC->Gsvolu("TPG1","TUBE",idtmed[8],dm,3); | |
544 | gMC->Gspos("TPG1",1,"TPCO",0.,0.,251.,0,"ONLY"); | |
545 | gMC->Gspos("TPG1",2,"TPCO",0.,0.,-251.,0,"ONLY"); | |
546 | ||
547 | gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
548 | ||
549 | ||
550 | //---------------------------------------------------------- | |
551 | // Small wheel -> positioned in "side gas | |
552 | //---------------------------------------------------------- | |
553 | ||
554 | dm[0] = 78.; | |
fe4da5cc | 555 | dm[1] = 82.; |
556 | dm[2] = 11.5; | |
1283eee5 | 557 | |
558 | gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3); | |
559 | ||
560 | dm[0] = 78.; | |
561 | dm[1] = dm[1]-2; | |
562 | dm[2] = dm[2]-2.; | |
563 | ||
564 | gMC->Gsvolu("TPW1", "TUBE", idtmed[2], dm, 3); | |
fe4da5cc | 565 | |
1283eee5 | 566 | gMC->Gspos("TPW1", 1, "TPWS", 0., 0., 0., 0, "ONLY"); |
567 | ||
568 | z0 = 1.; // spoke wheel is shifted w.r.t. center of the "side gas" | |
569 | ||
570 | gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY"); | |
571 | ||
572 | ||
573 | // to avoid overlaps | |
574 | ||
575 | dm[0] = 76.; | |
576 | dm[1] = 78.; | |
577 | dm[2] = 11.5; | |
578 | ||
579 | gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3); | |
580 | ||
fe4da5cc | 581 | dm[2] = 9.5; |
1283eee5 | 582 | |
583 | gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3); | |
584 | ||
585 | gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY"); | |
586 | ||
587 | z0= 263.5; | |
fe4da5cc | 588 | |
1283eee5 | 589 | gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY"); |
590 | gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
591 | ||
592 | // G10 plug | |
593 | ||
594 | dm[0] = 76.; | |
7d7bb9e5 | 595 | dm[1] = 78.; |
596 | dm[2] = 1.; | |
1283eee5 | 597 | |
598 | gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3); | |
599 | ||
600 | z0 = 251.; | |
601 | ||
602 | gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY"); | |
603 | gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
604 | ||
605 | ||
606 | //--------------------------------------------------------- | |
607 | // central wheel 6 (radial direction) x 4 (along z) cm2 | |
608 | //--------------------------------------------------------- | |
609 | ||
610 | dm[0] = 140.; | |
611 | dm[1] = 146.; | |
fe4da5cc | 612 | dm[2] = 2.; |
1283eee5 | 613 | |
614 | gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3); | |
615 | ||
616 | dm[0] = dm[0] + 2.; | |
617 | dm[1] = dm[1] - 2.; | |
618 | dm[2] = dm[2] - 1.; | |
619 | ||
620 | gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3); | |
621 | ||
622 | z0 = z_side - 1.9 - 2.; | |
623 | ||
624 | gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
625 | ||
626 | // | |
627 | ||
628 | gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke | |
629 | ||
630 | ||
631 | //--------------------------------------------------------- | |
632 | // inner spokes (nSectorInner) | |
633 | //--------------------------------------------------------- | |
634 | ||
635 | dm[0] = 0.5*(139.9-82.1); | |
fe4da5cc | 636 | dm[1] = 3.; |
637 | dm[2] = 2.; | |
1283eee5 | 638 | |
639 | Float_t x1 = dm[0]+82.; | |
640 | ||
641 | gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3); | |
642 | ||
643 | dm[1] = dm[1]-1.; | |
644 | dm[2] = dm[2]-1.; | |
645 | ||
646 | gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3); | |
647 | ||
648 | for(ns=0;ns<nInnerSector;ns++){ | |
649 | ||
650 | phi1 = 0.5*InnerOpenAngle + ns*InnerOpenAngle + InnerAngleShift; | |
651 | theta1=90.; | |
652 | phi1 *=kRaddeg; | |
653 | ||
654 | phi1 = (Float_t)TMath::Nint(phi1); | |
655 | if(phi1>360.) phi1 -= 360.; | |
656 | ||
657 | phi2 = phi1+90.; | |
658 | if(phi2>360.) phi2 -= 360.; | |
659 | theta2=90.; | |
660 | phi3=0.; | |
661 | theta3=0.; | |
662 | ||
fe4da5cc | 663 | alpha = phi1 * kDegrad; |
664 | x = x1 * TMath::Cos(alpha); | |
1283eee5 | 665 | y = x1 * TMath::Sin(alpha); |
666 | ||
667 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
668 | ||
669 | gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
670 | ||
671 | nRotMat++; | |
672 | ||
fe4da5cc | 673 | } |
1283eee5 | 674 | |
675 | //------------------------------------------------------------- | |
676 | // outer spokes (nSectorOuter) | |
677 | //------------------------------------------------------------- | |
678 | ||
679 | dm[0] = 0.5*(257.9-146.1); | |
680 | dm[1] = 3.; | |
681 | dm[2] = 2.; | |
682 | ||
683 | x1 = dm[0] + 146.; | |
684 | ||
685 | gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3); | |
686 | ||
687 | dm[1] = dm[1] - 1.; | |
688 | dm[2] = dm[2] - 1.; | |
689 | ||
690 | gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3); | |
691 | ||
692 | for(ns=0;ns<nOuterSector;ns++){ | |
693 | ||
694 | phi1 = 0.5*OuterOpenAngle + ns*OuterOpenAngle + OuterAngleShift; | |
695 | theta1=90.; | |
696 | phi1 *=kRaddeg; | |
697 | ||
698 | phi1 = (Float_t)TMath::Nint(phi1); | |
699 | if(phi1>360.) phi1 -= 360.; | |
700 | ||
701 | phi2 = phi1+90.; | |
702 | if(phi2>360.) phi2 -= 360.; | |
703 | theta2=90.; | |
704 | phi3=0.; | |
705 | theta3=0.; | |
706 | ||
fe4da5cc | 707 | alpha = phi1 * kDegrad; |
1283eee5 | 708 | x = x1 * TMath::Cos(alpha); |
709 | y = x1 * TMath::Sin(alpha); | |
710 | ||
711 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
712 | ||
713 | gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
714 | ||
715 | nRotMat++; | |
716 | ||
717 | } | |
fe4da5cc | 718 | |
1283eee5 | 719 | |
fe4da5cc | 720 | |
fe4da5cc | 721 | // -------------------------------------------------------- |
722 | // put the readout chambers into the TPC | |
723 | // -------------------------------------------------------- | |
1283eee5 | 724 | |
fe4da5cc | 725 | theta1 = 90.; |
726 | phi1 = 0.; | |
727 | theta2 = 90.; | |
728 | phi2 = 270.; | |
729 | theta3 = 180.; | |
730 | phi3 = 0.; | |
731 | ||
1283eee5 | 732 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); |
fe4da5cc | 733 | |
734 | z0 = z_side + 250.; | |
735 | ||
cfce8870 | 736 | gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY"); |
1283eee5 | 737 | gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[nRotMat], "ONLY"); |
fe4da5cc | 738 | |
cfce8870 | 739 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 740 | |
1283eee5 | 741 | //---------------------------------------------------- |
742 | // Inner vessel and HV degrader | |
743 | //---------------------------------------------------- | |
fe4da5cc | 744 | |
fe4da5cc | 745 | dm[0] = 0.; |
746 | dm[1] = 360.; | |
747 | dm[2] = 4.; | |
748 | ||
749 | dm[3] = -250.; | |
1283eee5 | 750 | dm[4] = 74.4; |
fe4da5cc | 751 | dm[5] = 76.; |
1283eee5 | 752 | |
fe4da5cc | 753 | dm[6] = -64.5; |
754 | dm[7] = 50.; | |
755 | dm[8] = 76.; | |
1283eee5 | 756 | |
d183a600 | 757 | dm[9] = 64.5; |
fe4da5cc | 758 | dm[10] = 50.; |
759 | dm[11] = 76.; | |
1283eee5 | 760 | |
fe4da5cc | 761 | dm[12] = 250.; |
1283eee5 | 762 | dm[13] = 74.4; |
fe4da5cc | 763 | dm[14] = 76.; |
1283eee5 | 764 | |
765 | gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2 | |
766 | ||
767 | // cone parts | |
fe4da5cc | 768 | |
769 | dm[0] = 0.; | |
770 | dm[1] = 360.; | |
1283eee5 | 771 | dm[2] = 2.; |
772 | ||
773 | dm[3] = 64.5; | |
774 | dm[4] = 50.; | |
775 | dm[5] = 51.6; | |
776 | ||
777 | dm[6] = 250.; | |
778 | dm[7] = 74.4; | |
779 | dm[8] = 76.; | |
780 | ||
781 | ||
782 | gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre | |
783 | ||
784 | gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
785 | gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
786 | ||
787 | // barrel part | |
788 | ||
789 | dm[0] = 50.; | |
790 | dm[1] = 50.5; | |
a5371c42 | 791 | dm[2] = 64.5; |
1283eee5 | 792 | |
793 | gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3); | |
794 | ||
795 | gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
796 | ||
797 | gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY"); | |
798 | ||
fe4da5cc | 799 | |
1283eee5 | 800 | |
fe4da5cc | 801 | |
1283eee5 | 802 | |
fe4da5cc | 803 | // --------------------------------------------------- |
804 | // volumes ordering | |
805 | // --------------------------------------------------- | |
cfce8870 | 806 | gMC->Gsord("TGAS", 6); |
807 | gMC->Gsord("TPSG", 6); | |
808 | gMC->Gsord("TSGA", 3); | |
8022212f | 809 | gMC->Gsord("TLGA", 4); |
1283eee5 | 810 | |
811 | } // end of function | |
812 | ||
fe4da5cc | 813 | |
814 | //_____________________________________________________________________________ | |
8c555625 | 815 | void AliTPCv1::DrawDetector() |
fe4da5cc | 816 | { |
817 | // | |
818 | // Draw a shaded view of the Time Projection Chamber version 1 | |
819 | // | |
820 | ||
fe4da5cc | 821 | // Set everything unseen |
cfce8870 | 822 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 823 | // |
824 | // Set ALIC mother transparent | |
cfce8870 | 825 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 826 | // |
827 | // Set the volumes visible | |
cfce8870 | 828 | gMC->Gsatt("TPC","SEEN",0); |
829 | gMC->Gsatt("TGAS","SEEN",0); | |
830 | gMC->Gsatt("TPSG","SEEN",0); | |
831 | gMC->Gsatt("TPHV","SEEN",1); | |
1283eee5 | 832 | gMC->Gsatt("TPMH","SEEN",1); |
833 | gMC->Gsatt("TPEC","SEEN",0); | |
cfce8870 | 834 | gMC->Gsatt("TRCS","SEEN",1); |
835 | gMC->Gsatt("TRCL","SEEN",1); | |
1283eee5 | 836 | gMC->Gsatt("TPWL","SEEN",1); |
837 | gMC->Gsatt("TPWI","SEEN",1); | |
838 | gMC->Gsatt("TPWS","SEEN",1); | |
cfce8870 | 839 | gMC->Gsatt("TPW1","SEEN",1); |
1283eee5 | 840 | gMC->Gsatt("TPS1","SEEN",1); |
841 | gMC->Gsatt("TPS2","SEEN",1); | |
842 | gMC->Gsatt("TPG1","SEEN",1); | |
843 | gMC->Gsatt("TPG2","SEEN",1); | |
844 | gMC->Gsatt("TPWC","SEEN",1); | |
845 | gMC->Gsatt("TPSI","SEEN",1); | |
846 | gMC->Gsatt("TPSO","SEEN",1); | |
847 | gMC->Gsatt("TPCO","SEEN",1); | |
848 | gMC->Gsatt("TPOV","SEEN",1); | |
cfce8870 | 849 | gMC->Gsatt("TPVD","SEEN",1); |
fe4da5cc | 850 | // |
cfce8870 | 851 | gMC->Gdopt("hide", "on"); |
852 | gMC->Gdopt("shad", "on"); | |
853 | gMC->Gsatt("*", "fill", 7); | |
854 | gMC->SetClipBox("."); | |
855 | gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000); | |
856 | gMC->DefaultRange(); | |
857 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
858 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
859 | gMC->Gdman(18, 4, "MAN"); | |
860 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 861 | } |
862 | ||
863 | //_____________________________________________________________________________ | |
864 | void AliTPCv1::CreateMaterials() | |
865 | { | |
866 | // | |
867 | // Define materials for Time Projection Chamber | |
868 | // | |
869 | AliTPC::CreateMaterials(); | |
870 | } | |
871 | ||
872 | //_____________________________________________________________________________ | |
873 | void AliTPCv1::Init() | |
874 | { | |
875 | // | |
876 | // Initialises TPC detector after it has been created | |
877 | // | |
cfce8870 | 878 | |
1283eee5 | 879 | fIdSens1=gMC->VolId("TLST"); // L-sector |
880 | fIdSens2=gMC->VolId("TSST"); // S-sector | |
fe4da5cc | 881 | |
882 | printf("TPC version 1 initialized\n"); | |
883 | } | |
884 | ||
885 | //_____________________________________________________________________________ | |
886 | void AliTPCv1::StepManager() | |
887 | { | |
888 | // | |
889 | // Called at every step in the Time Projection Chamber | |
890 | // | |
0a6d8768 | 891 | Int_t copy, id, i; |
fe4da5cc | 892 | Float_t hits[4]; |
893 | Int_t vol[2]; | |
0a6d8768 | 894 | TLorentzVector p; |
fe4da5cc | 895 | TClonesArray &lhits = *fHits; |
cfce8870 | 896 | |
1283eee5 | 897 | AliTPCParam *fTPCParam = &(fDigParam->GetParam()); |
898 | ||
fe4da5cc | 899 | // |
1283eee5 | 900 | |
0a6d8768 | 901 | if(gMC->TrackCharge() && gMC->IsTrackEntering()) { |
fe4da5cc | 902 | // |
903 | // Only entering charged tracks | |
1283eee5 | 904 | // |
0a6d8768 | 905 | if((id=gMC->CurrentVolID(copy))==fIdSens1) { |
1283eee5 | 906 | |
907 | // L | |
908 | ||
909 | vol[1]=copy-1; // row | |
0a6d8768 | 910 | id=gMC->CurrentVolOffID(1,copy); |
1283eee5 | 911 | vol[0]=copy+fTPCParam->GetNInnerSector()-1; // sector |
fe4da5cc | 912 | } else if(id==fIdSens2) { |
1283eee5 | 913 | |
914 | // S | |
915 | ||
916 | vol[1]=copy-1; // row | |
917 | id=gMC->CurrentVolOffID(1,copy); // sector | |
918 | vol[0]=copy-1; | |
fe4da5cc | 919 | } else return; |
1283eee5 | 920 | |
0a6d8768 | 921 | gMC->TrackPosition(p); |
922 | for(i=0;i<3;++i) hits[i]=p[i]; | |
fe4da5cc | 923 | hits[3]=0; |
924 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
925 | } | |
926 | } | |
1283eee5 | 927 | |
928 | ||
929 |