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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 | $Log$ | |
e94dd9ca | 18 | Revision 1.16 2000/04/17 09:37:33 kowal2 |
19 | removed obsolete AliTPCDigitsDisplay.C | |
20 | ||
cc80f89e | 21 | Revision 1.15.8.2 2000/04/10 08:29:48 kowal2 |
22 | ||
23 | Different pad geometry for different sectors | |
24 | Updated readouch chambers geometry | |
25 | ||
26 | Revision 1.15.8.1 2000/04/10 07:56:53 kowal2 | |
27 | Not used anymore - removed | |
28 | ||
29 | Revision 1.15 1999/11/04 17:28:07 fca | |
30 | Correct barrel part of HV Degrader | |
31 | ||
a5371c42 | 32 | Revision 1.14 1999/10/08 06:27:23 fca |
33 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
34 | ||
d183a600 | 35 | Revision 1.13 1999/10/04 13:39:54 fca |
36 | Correct array index problem | |
37 | ||
cdde5b1e | 38 | Revision 1.12 1999/09/29 09:24:34 fca |
39 | Introduction of the Copyright and cvs Log | |
40 | ||
4c039060 | 41 | */ |
42 | ||
fe4da5cc | 43 | /////////////////////////////////////////////////////////////////////////////// |
44 | // // | |
45 | // Time Projection Chamber version 1 -- detailed TPC and fast simulation // | |
46 | // // | |
47 | //Begin_Html | |
48 | /* | |
1439f98e | 49 | <img src="picts/AliTPCv1Class.gif"> |
fe4da5cc | 50 | */ |
51 | //End_Html | |
52 | // // | |
53 | // // | |
54 | /////////////////////////////////////////////////////////////////////////////// | |
55 | ||
56 | #include <TMath.h> | |
57 | #include <TGeometry.h> | |
58 | #include <TNode.h> | |
59 | #include <TBRIK.h> | |
60 | #include <TTUBE.h> | |
61 | #include "AliTPCv1.h" | |
62 | #include "AliRun.h" | |
63 | #include <iostream.h> | |
64 | #include <fstream.h> | |
65 | ||
66 | #include "AliMC.h" | |
67 | #include "AliConst.h" | |
68 | ||
8c555625 | 69 | #include "AliTPCParam.h" |
cc80f89e | 70 | #include "AliTPCDigitsArray.h" |
8c555625 | 71 | |
fe4da5cc | 72 | ClassImp(AliTPCv1) |
73 | ||
74 | //_____________________________________________________________________________ | |
75 | AliTPCv1::AliTPCv1(const char *name, const char *title) | |
76 | :AliTPC(name, title) { | |
77 | // | |
78 | // Standard constructor for Time Projection Chamber | |
79 | // | |
80 | fIdSens1=fIdSens2=0; | |
81 | } | |
82 | ||
83 | //_____________________________________________________________________________ | |
84 | void AliTPCv1::CreateGeometry() | |
85 | { | |
86 | // | |
87 | // Creates geometry for Time Projection Chamber version 1 | |
88 | // Detailed geometry -- Fast simulation | |
89 | // Origin M.Kowalski | |
90 | // | |
91 | //Begin_Html | |
92 | /* | |
1439f98e | 93 | <img src="picts/AliTPCv1.gif"> |
fe4da5cc | 94 | */ |
95 | //End_Html | |
96 | //Begin_Html | |
97 | /* | |
1439f98e | 98 | <img src="picts/AliTPCv1Tree.gif"> |
fe4da5cc | 99 | */ |
100 | //End_Html | |
101 | ||
8c555625 | 102 | |
1283eee5 | 103 | Int_t *idtmed = fIdtmed->GetArray(); |
8c555625 | 104 | |
1283eee5 | 105 | Float_t dm[21]; |
62a73ee5 | 106 | Int_t idrotm[120]; |
1283eee5 | 107 | |
108 | Int_t nRotMat = 0; | |
109 | ||
110 | ||
fe4da5cc | 111 | // ---------------------------------------------------- |
1283eee5 | 112 | // FIELD CAGE WITH ENDCAPS - G10 |
fe4da5cc | 113 | // THIS IS ALSO A TPC MOTHER VOLUME |
114 | // ---------------------------------------------------- | |
1283eee5 | 115 | |
fe4da5cc | 116 | dm[0] = 76.; |
117 | dm[1] = 278.; | |
118 | dm[2] = 275.; | |
1283eee5 | 119 | |
120 | gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3); | |
121 | ||
122 | //----------------------------------------------------- | |
123 | // Endcap cover c-fibre 0.86% X0 | |
124 | //----------------------------------------------------- | |
125 | ||
126 | dm[0] = 78.; | |
127 | dm[1] = 258.; | |
128 | dm[2] = 0.95; | |
129 | ||
130 | gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3); | |
131 | ||
132 | //----------------------------------------------------- | |
133 | // Drift gas , leave 2 cm at the outer radius | |
134 | // and inner raddius | |
135 | //----------------------------------------------------- | |
136 | ||
137 | dm[0] = 78.; | |
138 | dm[1] = 258.; | |
fe4da5cc | 139 | dm[2] = 250.; |
fe4da5cc | 140 | |
1283eee5 | 141 | gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3); |
142 | ||
143 | ||
144 | //------------------------------------------------------ | |
145 | // membrane holder - carbon fiber | |
146 | //------------------------------------------------------ | |
147 | ||
148 | ||
149 | gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0); | |
150 | ||
151 | dm[0] = 252.; | |
152 | dm[1] = 258.; | |
153 | dm[2] = 0.2; | |
154 | ||
155 | gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
156 | ||
157 | dm[0] = 78.; | |
cdde5b1e | 158 | dm[1] = 82.; |
1283eee5 | 159 | dm[2] = 0.1; |
160 | ||
161 | gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
162 | ||
163 | //---------------------------------------------------------- | |
164 | // HV membrane - 25 microns of mylar | |
165 | //---------------------------------------------------------- | |
166 | ||
167 | dm[0] = 82.; | |
168 | dm[1] = 252.; | |
169 | dm[2] = 0.00125; | |
170 | ||
171 | gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3); | |
172 | ||
173 | gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY"); | |
174 | ||
175 | gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
176 | ||
177 | //---------------------------------------------------------- | |
178 | // "side" gas volume, the same as the drift gas | |
179 | // the readout chambers are placed there. | |
180 | //---------------------------------------------------------- | |
181 | ||
182 | dm[0] = 78.; | |
183 | dm[1] = 258.; | |
184 | dm[2] = 0.5*(275. - 250.); | |
185 | ||
186 | gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3); | |
187 | ||
188 | Float_t z_side = dm[2]; // 1/2 of the side gas thickness | |
189 | ||
190 | //----------------------------------------------------------- | |
191 | // Readout chambers , 25% of X0, I use Al as the material | |
192 | //----------------------------------------------------------- | |
193 | ||
194 | Float_t InnerOpenAngle = fTPCParam->GetInnerAngle(); | |
195 | Float_t OuterOpenAngle = fTPCParam->GetOuterAngle(); | |
196 | ||
197 | Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift(); | |
198 | Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift(); | |
199 | ||
200 | ||
201 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; | |
202 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
203 | ||
204 | ||
cc80f89e | 205 | Float_t InSecLowEdge = fTPCParam->GetInnerRadiusLow(); |
206 | Float_t InSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1283eee5 | 207 | |
cc80f89e | 208 | Float_t OuSecLowEdge = fTPCParam->GetOuterRadiusLow(); |
209 | Float_t OuSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1283eee5 | 210 | |
211 | Float_t SecThick = 2.225; // Al | |
212 | ||
1283eee5 | 213 | // S (Inner) sectors |
214 | ||
cc80f89e | 215 | Float_t LowEdge = fTPCParam->GetInnerFrameSpace(); |
216 | ||
217 | dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-LowEdge; | |
218 | dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-LowEdge; | |
1283eee5 | 219 | dm[2] = 0.5*SecThick; |
220 | dm[3] = 0.5*(InSecUpEdge-InSecLowEdge); | |
221 | ||
222 | Float_t xCenterS = InSecLowEdge+dm[3]; | |
223 | ||
224 | gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4); | |
225 | ||
226 | // L (Outer) sectors | |
227 | ||
cc80f89e | 228 | Float_t UpEdge = fTPCParam->GetOuterFrameSpace(); |
229 | ||
230 | dm[0] = OuSecLowEdge*TMath::Tan(0.5*OuterOpenAngle)-UpEdge; | |
231 | dm[1] = OuSecUpEdge*TMath::Tan(0.5*OuterOpenAngle)-UpEdge; | |
1283eee5 | 232 | dm[2] = 0.5*SecThick; |
233 | dm[3] = 0.5*(OuSecUpEdge-OuSecLowEdge); | |
234 | ||
235 | Float_t xCenterL = OuSecLowEdge+dm[3]; | |
236 | ||
237 | gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4); | |
238 | ||
239 | Float_t z1 = -z_side + SecThick*0.5; | |
240 | ||
241 | //------------------------------------------------------------------ | |
242 | // S sectors - "gas sectors" (TRD1) | |
243 | //------------------------------------------------------------------ | |
244 | ||
245 | dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01; | |
246 | dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01; | |
247 | dm[2] = 0.5*(250. - 0.001); | |
248 | dm[3] = 0.5*(InSecUpEdge-InSecLowEdge); | |
249 | ||
250 | gMC->Gsvolu("TSGA", "TRD1", idtmed[3], dm, 4); // nonsensitive | |
251 | ||
252 | //------------------------------------------------------------------ | |
253 | // sensitive strips - "pad rows" | |
254 | //------------------------------------------------------------------ | |
255 | ||
256 | Int_t ns; | |
257 | Float_t r1,r2,zz; | |
258 | ||
259 | Float_t StripThick = 0.01; // 100 microns | |
cc80f89e | 260 | Float_t dead; |
1283eee5 | 261 | |
262 | gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0); | |
263 | ||
264 | dm[2] = 0.5*(250. - 0.002); | |
265 | dm[3] = 0.5 * StripThick; | |
266 | ||
8c555625 | 267 | |
1283eee5 | 268 | // S-sector |
8c555625 | 269 | |
cc80f89e | 270 | dead = fTPCParam->GetInnerWireMount(); |
271 | ||
1283eee5 | 272 | for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) { |
273 | ||
274 | r1 = fTPCParam->GetPadRowRadiiLow(ns); | |
275 | r2 = r1 + StripThick; | |
276 | dm[0] = r1 * TMath::Tan(0.5*InnerOpenAngle) - dead; | |
277 | dm[1] = r2 * TMath::Tan(0.5*InnerOpenAngle) - dead; | |
278 | ||
279 | zz = -InSecLowEdge -0.5*(InSecUpEdge-InSecLowEdge); | |
280 | zz += r1; | |
281 | zz += dm[3]; | |
282 | ||
283 | gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4); | |
284 | ||
8c555625 | 285 | |
fe4da5cc | 286 | } |
8c555625 | 287 | |
1283eee5 | 288 | //----------------------------------------------------------------- |
289 | // L sectors - "gas sectors" (PGON to avoid overlaps) | |
290 | //----------------------------------------------------------------- | |
291 | ||
292 | dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle; | |
293 | dm[0] *= kRaddeg; | |
294 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
295 | ||
296 | dm[1] = OuterOpenAngle*kRaddeg; | |
297 | dm[1] = (Float_t)TMath::Nint(dm[1]); | |
298 | ||
299 | dm[2] = 1.; | |
300 | dm[3] = 4.; | |
301 | ||
302 | dm[4] = 0.002; | |
303 | dm[5] = OuSecLowEdge; | |
304 | dm[6] = 252.*TMath::Cos(0.5*OuterOpenAngle)-0.002; | |
305 | ||
306 | dm[7] = dm[4]+0.2; | |
307 | dm[8] = dm[5]; | |
308 | dm[9] = dm[6]; | |
309 | ||
310 | dm[10] = dm[7]; | |
311 | dm[11] = OuSecLowEdge; | |
312 | dm[12] = OuSecUpEdge; | |
313 | ||
314 | dm[13] = 250.; | |
315 | dm[14] = dm[11]; | |
316 | dm[15] = dm[12]; | |
317 | ||
318 | gMC->Gsvolu("TLGA","PGON",idtmed[3],dm,16); | |
319 | ||
320 | //------------------------------------------------------------------ | |
321 | // sensitive strips - "pad rows" | |
322 | //------------------------------------------------------------------ | |
323 | ||
324 | Float_t rmax = dm[6]; | |
325 | ||
326 | // L-sectors | |
327 | ||
328 | gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0); | |
329 | ||
330 | dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle; | |
331 | dm[0] *= kRaddeg; | |
332 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
333 | ||
334 | dm[1] = OuterOpenAngle*kRaddeg; | |
335 | dm[1] = (Float_t)TMath::Nint(dm[1]); | |
336 | ||
337 | dm[2] = 1.; | |
338 | dm[3] = 2.; | |
339 | ||
340 | dm[7] = 250.; | |
341 | ||
cc80f89e | 342 | dead = fTPCParam->GetOuterWireMount(); |
343 | ||
1283eee5 | 344 | Float_t xx = dead/TMath::Tan(0.5*OuterOpenAngle); |
345 | ||
346 | for(ns=0;ns<fTPCParam->GetNRowUp();ns++){ | |
347 | ||
348 | r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx; | |
349 | r2 = r1 + StripThick; | |
8c555625 | 350 | |
1283eee5 | 351 | dm[5] = r1; |
352 | dm[6] = r2; | |
353 | ||
354 | dm[8] = r1; | |
355 | dm[9] = r2; | |
356 | ||
357 | if(r2+xx < rmax){ | |
358 | dm[4] = 0.002; | |
359 | } | |
360 | else{ | |
361 | dm[4] = 0.202; | |
362 | } | |
363 | ||
364 | gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10); | |
8c555625 | 365 | |
fe4da5cc | 366 | } |
fe4da5cc | 367 | |
1283eee5 | 368 | //------------------------------------------------------------------ |
369 | // Positioning of the S-sector readout chambers | |
370 | //------------------------------------------------------------------ | |
371 | ||
372 | Float_t zs = 0.5*(250.+0.002); | |
373 | ||
374 | Float_t theta1,theta2,theta3; | |
375 | Float_t phi1,phi2,phi3; | |
376 | Float_t alpha; | |
377 | Float_t x,y; | |
378 | ||
379 | for(ns=0;ns<nInnerSector;ns++){ | |
380 | ||
381 | phi1 = ns * InnerOpenAngle + 270.*kDegrad + InnerAngleShift; | |
382 | phi1 *= kRaddeg; // in degrees | |
383 | ||
384 | phi1 = (Float_t)TMath::Nint(phi1); | |
385 | ||
386 | if (phi1 > 360.) phi1 -= 360.; | |
62a73ee5 | 387 | |
1283eee5 | 388 | |
fe4da5cc | 389 | theta1 = 90.; |
390 | phi2 = 90.; | |
391 | theta2 = 180.; | |
1283eee5 | 392 | phi3 = ns * InnerOpenAngle + InnerAngleShift; |
393 | phi3 *= kRaddeg; // in degrees | |
394 | ||
395 | phi3 = (Float_t)TMath::Nint(phi3); | |
396 | ||
397 | if(phi3 > 360.) phi3 -= 360.; | |
398 | ||
fe4da5cc | 399 | theta3 = 90.; |
1283eee5 | 400 | |
401 | alpha = phi3*kDegrad; | |
402 | ||
403 | x = xCenterS * TMath::Cos(alpha); | |
404 | y = xCenterS * TMath::Sin(alpha); | |
405 | ||
406 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
407 | ||
408 | gMC->Gspos("TRCS", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
409 | ||
410 | gMC->Gspos("TSGA",ns+1,"TGAS",x,y,zs,idrotm[nRotMat], "ONLY"); | |
411 | gMC->Gspos("TSGA",ns+1+nInnerSector,"TGAS",x,y,-zs,idrotm[nRotMat], "ONLY"); | |
412 | ||
413 | nRotMat++; | |
414 | ||
415 | } | |
fe4da5cc | 416 | |
1283eee5 | 417 | //------------------------------------------------------------------- |
418 | // Positioning of the L-sectors readout chambers | |
419 | //------------------------------------------------------------------- | |
fe4da5cc | 420 | |
1283eee5 | 421 | for(ns=0;ns<nOuterSector;ns++){ |
422 | phi1 = ns * OuterOpenAngle + 270.*kDegrad + OuterAngleShift; | |
423 | phi1 *= kRaddeg; // in degrees | |
fe4da5cc | 424 | |
1283eee5 | 425 | phi1 = (Float_t)TMath::Nint(phi1); |
fe4da5cc | 426 | |
1283eee5 | 427 | |
428 | if (phi1 > 360.) phi1 -= 360.; | |
429 | ||
fe4da5cc | 430 | theta1 = 90.; |
431 | phi2 = 90.; | |
432 | theta2 = 180.; | |
1283eee5 | 433 | phi3 = ns * OuterOpenAngle+OuterAngleShift; |
434 | phi3 *= kRaddeg; // in degrees | |
435 | ||
436 | phi3 = (Float_t)TMath::Nint(phi3); | |
437 | ||
438 | ||
439 | if(phi3 > 360.) phi3 -= 360.; | |
440 | ||
fe4da5cc | 441 | theta3 = 90.; |
1283eee5 | 442 | |
443 | alpha = phi3*kDegrad; | |
444 | ||
445 | x = xCenterL * TMath::Cos(alpha); | |
446 | y = xCenterL * TMath::Sin(alpha); | |
447 | ||
448 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
449 | ||
450 | ||
451 | gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
452 | ||
453 | nRotMat++; | |
454 | ||
fe4da5cc | 455 | } |
fe4da5cc | 456 | |
1283eee5 | 457 | //------------------------------------------------------------------- |
458 | // Positioning of the L-sectors (gas sectors) | |
459 | //------------------------------------------------------------------- | |
460 | ||
461 | for(ns=0;ns<nOuterSector;ns++){ | |
462 | ||
463 | phi1 = ns*OuterOpenAngle + OuterAngleShift; | |
464 | phi1 *= kRaddeg; | |
465 | ||
466 | phi1 = (Float_t)TMath::Nint(phi1); | |
467 | if(phi1>360.) phi1 -= 360.; | |
468 | ||
469 | theta1 = 90.; | |
470 | ||
471 | phi2 = 90. + phi1; | |
472 | if(phi2>360.) phi2 -= 360.; | |
473 | ||
474 | theta2 = 90.; | |
475 | ||
476 | phi3 = 0.; | |
477 | theta3 = 0.; | |
478 | ||
479 | alpha = phi1*kDegrad; | |
480 | ||
481 | ||
482 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
483 | ||
484 | ||
485 | gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
486 | ||
487 | nRotMat++; | |
488 | ||
489 | // reflection !! | |
490 | ||
491 | phi3 = 0.; | |
492 | theta3 = 180.; | |
493 | ||
494 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
495 | ||
496 | gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
497 | ||
498 | nRotMat++; | |
499 | } | |
fe4da5cc | 500 | |
1283eee5 | 501 | Float_t z0 = z_side - 0.95; |
502 | ||
503 | gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
504 | ||
fe4da5cc | 505 | // ========================================================== |
506 | // wheels | |
507 | // ========================================================== | |
1283eee5 | 508 | |
509 | // | |
510 | // auxilary structures | |
511 | // | |
512 | ||
513 | ||
514 | gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air" | |
515 | ||
fe4da5cc | 516 | // ---------------------------------------------------------- |
517 | // Large wheel -> positioned in the TPC | |
518 | // ---------------------------------------------------------- | |
1283eee5 | 519 | |
520 | ||
521 | z0 = 263.5; // TPC length - 1/2 spoke wheel width | |
522 | ||
523 | dm[0] = 258.; | |
fe4da5cc | 524 | dm[1] = 278.; |
525 | dm[2] = 11.5; | |
fe4da5cc | 526 | |
1283eee5 | 527 | gMC->Gsvolu("TPWL", "TUBE", idtmed[0], dm, 3); |
528 | ||
529 | dm[0] = dm[0]+2.; | |
530 | dm[1] = 278.; | |
531 | dm[2] = dm[2]-2.; | |
532 | ||
533 | gMC->Gsposp("TPWI",1,"TPWL",0.,0.,0.,0,"ONLY",dm,3); | |
534 | ||
535 | gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY"); | |
536 | gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY"); | |
537 | ||
538 | // | |
539 | // Outer vessel + CO2 HV degrader | |
540 | // | |
541 | ||
542 | dm[0] = 260.; | |
543 | dm[1] = 278.; | |
544 | dm[2] = 252.; | |
545 | ||
546 | gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3); | |
547 | ||
548 | dm[0] = 275.; | |
fe4da5cc | 549 | dm[1] = 278.; |
fe4da5cc | 550 | |
1283eee5 | 551 | gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3); |
552 | ||
553 | gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY"); | |
554 | ||
555 | ||
e94dd9ca | 556 | |
1283eee5 | 557 | |
558 | gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
559 | ||
560 | ||
561 | //---------------------------------------------------------- | |
562 | // Small wheel -> positioned in "side gas | |
563 | //---------------------------------------------------------- | |
564 | ||
565 | dm[0] = 78.; | |
fe4da5cc | 566 | dm[1] = 82.; |
567 | dm[2] = 11.5; | |
1283eee5 | 568 | |
569 | gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3); | |
570 | ||
571 | dm[0] = 78.; | |
572 | dm[1] = dm[1]-2; | |
573 | dm[2] = dm[2]-2.; | |
574 | ||
575 | gMC->Gsvolu("TPW1", "TUBE", idtmed[2], dm, 3); | |
fe4da5cc | 576 | |
1283eee5 | 577 | gMC->Gspos("TPW1", 1, "TPWS", 0., 0., 0., 0, "ONLY"); |
578 | ||
579 | z0 = 1.; // spoke wheel is shifted w.r.t. center of the "side gas" | |
580 | ||
581 | gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY"); | |
582 | ||
583 | ||
584 | // to avoid overlaps | |
585 | ||
586 | dm[0] = 76.; | |
587 | dm[1] = 78.; | |
588 | dm[2] = 11.5; | |
589 | ||
590 | gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3); | |
591 | ||
fe4da5cc | 592 | dm[2] = 9.5; |
1283eee5 | 593 | |
594 | gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3); | |
595 | ||
596 | gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY"); | |
597 | ||
598 | z0= 263.5; | |
fe4da5cc | 599 | |
1283eee5 | 600 | gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY"); |
601 | gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
602 | ||
603 | // G10 plug | |
604 | ||
605 | dm[0] = 76.; | |
7d7bb9e5 | 606 | dm[1] = 78.; |
607 | dm[2] = 1.; | |
1283eee5 | 608 | |
609 | gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3); | |
610 | ||
611 | z0 = 251.; | |
612 | ||
613 | gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY"); | |
614 | gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
615 | ||
616 | ||
617 | //--------------------------------------------------------- | |
618 | // central wheel 6 (radial direction) x 4 (along z) cm2 | |
619 | //--------------------------------------------------------- | |
620 | ||
621 | dm[0] = 140.; | |
622 | dm[1] = 146.; | |
fe4da5cc | 623 | dm[2] = 2.; |
1283eee5 | 624 | |
625 | gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3); | |
626 | ||
627 | dm[0] = dm[0] + 2.; | |
628 | dm[1] = dm[1] - 2.; | |
629 | dm[2] = dm[2] - 1.; | |
630 | ||
631 | gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3); | |
632 | ||
633 | z0 = z_side - 1.9 - 2.; | |
634 | ||
635 | gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
636 | ||
637 | // | |
638 | ||
639 | gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke | |
640 | ||
641 | ||
642 | //--------------------------------------------------------- | |
643 | // inner spokes (nSectorInner) | |
644 | //--------------------------------------------------------- | |
645 | ||
646 | dm[0] = 0.5*(139.9-82.1); | |
fe4da5cc | 647 | dm[1] = 3.; |
648 | dm[2] = 2.; | |
1283eee5 | 649 | |
650 | Float_t x1 = dm[0]+82.; | |
651 | ||
652 | gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3); | |
653 | ||
654 | dm[1] = dm[1]-1.; | |
655 | dm[2] = dm[2]-1.; | |
656 | ||
657 | gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3); | |
658 | ||
659 | for(ns=0;ns<nInnerSector;ns++){ | |
660 | ||
661 | phi1 = 0.5*InnerOpenAngle + ns*InnerOpenAngle + InnerAngleShift; | |
662 | theta1=90.; | |
663 | phi1 *=kRaddeg; | |
664 | ||
665 | phi1 = (Float_t)TMath::Nint(phi1); | |
666 | if(phi1>360.) phi1 -= 360.; | |
667 | ||
668 | phi2 = phi1+90.; | |
669 | if(phi2>360.) phi2 -= 360.; | |
670 | theta2=90.; | |
671 | phi3=0.; | |
672 | theta3=0.; | |
673 | ||
fe4da5cc | 674 | alpha = phi1 * kDegrad; |
675 | x = x1 * TMath::Cos(alpha); | |
1283eee5 | 676 | y = x1 * TMath::Sin(alpha); |
677 | ||
678 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
679 | ||
680 | gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
681 | ||
682 | nRotMat++; | |
683 | ||
fe4da5cc | 684 | } |
1283eee5 | 685 | |
686 | //------------------------------------------------------------- | |
687 | // outer spokes (nSectorOuter) | |
688 | //------------------------------------------------------------- | |
689 | ||
690 | dm[0] = 0.5*(257.9-146.1); | |
691 | dm[1] = 3.; | |
692 | dm[2] = 2.; | |
693 | ||
694 | x1 = dm[0] + 146.; | |
695 | ||
696 | gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3); | |
697 | ||
698 | dm[1] = dm[1] - 1.; | |
699 | dm[2] = dm[2] - 1.; | |
700 | ||
701 | gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3); | |
702 | ||
703 | for(ns=0;ns<nOuterSector;ns++){ | |
704 | ||
705 | phi1 = 0.5*OuterOpenAngle + ns*OuterOpenAngle + OuterAngleShift; | |
706 | theta1=90.; | |
707 | phi1 *=kRaddeg; | |
708 | ||
709 | phi1 = (Float_t)TMath::Nint(phi1); | |
710 | if(phi1>360.) phi1 -= 360.; | |
711 | ||
712 | phi2 = phi1+90.; | |
713 | if(phi2>360.) phi2 -= 360.; | |
714 | theta2=90.; | |
715 | phi3=0.; | |
716 | theta3=0.; | |
717 | ||
fe4da5cc | 718 | alpha = phi1 * kDegrad; |
1283eee5 | 719 | x = x1 * TMath::Cos(alpha); |
720 | y = x1 * TMath::Sin(alpha); | |
721 | ||
722 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
723 | ||
724 | gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
725 | ||
726 | nRotMat++; | |
727 | ||
728 | } | |
fe4da5cc | 729 | |
1283eee5 | 730 | |
fe4da5cc | 731 | |
fe4da5cc | 732 | // -------------------------------------------------------- |
733 | // put the readout chambers into the TPC | |
734 | // -------------------------------------------------------- | |
1283eee5 | 735 | |
fe4da5cc | 736 | theta1 = 90.; |
737 | phi1 = 0.; | |
738 | theta2 = 90.; | |
739 | phi2 = 270.; | |
740 | theta3 = 180.; | |
741 | phi3 = 0.; | |
742 | ||
1283eee5 | 743 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); |
fe4da5cc | 744 | |
745 | z0 = z_side + 250.; | |
746 | ||
cfce8870 | 747 | gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY"); |
1283eee5 | 748 | gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[nRotMat], "ONLY"); |
fe4da5cc | 749 | |
cfce8870 | 750 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 751 | |
1283eee5 | 752 | //---------------------------------------------------- |
753 | // Inner vessel and HV degrader | |
754 | //---------------------------------------------------- | |
fe4da5cc | 755 | |
fe4da5cc | 756 | dm[0] = 0.; |
757 | dm[1] = 360.; | |
758 | dm[2] = 4.; | |
759 | ||
760 | dm[3] = -250.; | |
1283eee5 | 761 | dm[4] = 74.4; |
fe4da5cc | 762 | dm[5] = 76.; |
1283eee5 | 763 | |
fe4da5cc | 764 | dm[6] = -64.5; |
765 | dm[7] = 50.; | |
766 | dm[8] = 76.; | |
1283eee5 | 767 | |
d183a600 | 768 | dm[9] = 64.5; |
fe4da5cc | 769 | dm[10] = 50.; |
770 | dm[11] = 76.; | |
1283eee5 | 771 | |
fe4da5cc | 772 | dm[12] = 250.; |
1283eee5 | 773 | dm[13] = 74.4; |
fe4da5cc | 774 | dm[14] = 76.; |
1283eee5 | 775 | |
776 | gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2 | |
777 | ||
778 | // cone parts | |
fe4da5cc | 779 | |
780 | dm[0] = 0.; | |
781 | dm[1] = 360.; | |
1283eee5 | 782 | dm[2] = 2.; |
783 | ||
784 | dm[3] = 64.5; | |
785 | dm[4] = 50.; | |
786 | dm[5] = 51.6; | |
787 | ||
788 | dm[6] = 250.; | |
789 | dm[7] = 74.4; | |
790 | dm[8] = 76.; | |
791 | ||
792 | ||
793 | gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre | |
794 | ||
795 | gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
796 | gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
797 | ||
798 | // barrel part | |
799 | ||
800 | dm[0] = 50.; | |
801 | dm[1] = 50.5; | |
a5371c42 | 802 | dm[2] = 64.5; |
1283eee5 | 803 | |
804 | gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3); | |
805 | ||
806 | gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
807 | ||
808 | gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY"); | |
809 | ||
fe4da5cc | 810 | |
1283eee5 | 811 | |
fe4da5cc | 812 | |
1283eee5 | 813 | |
fe4da5cc | 814 | // --------------------------------------------------- |
815 | // volumes ordering | |
816 | // --------------------------------------------------- | |
cfce8870 | 817 | gMC->Gsord("TGAS", 6); |
818 | gMC->Gsord("TPSG", 6); | |
819 | gMC->Gsord("TSGA", 3); | |
8022212f | 820 | gMC->Gsord("TLGA", 4); |
1283eee5 | 821 | |
822 | } // end of function | |
823 | ||
fe4da5cc | 824 | |
825 | //_____________________________________________________________________________ | |
8c555625 | 826 | void AliTPCv1::DrawDetector() |
fe4da5cc | 827 | { |
828 | // | |
829 | // Draw a shaded view of the Time Projection Chamber version 1 | |
830 | // | |
831 | ||
fe4da5cc | 832 | // Set everything unseen |
cfce8870 | 833 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 834 | // |
835 | // Set ALIC mother transparent | |
cfce8870 | 836 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 837 | // |
838 | // Set the volumes visible | |
cfce8870 | 839 | gMC->Gsatt("TPC","SEEN",0); |
840 | gMC->Gsatt("TGAS","SEEN",0); | |
841 | gMC->Gsatt("TPSG","SEEN",0); | |
842 | gMC->Gsatt("TPHV","SEEN",1); | |
1283eee5 | 843 | gMC->Gsatt("TPMH","SEEN",1); |
844 | gMC->Gsatt("TPEC","SEEN",0); | |
cfce8870 | 845 | gMC->Gsatt("TRCS","SEEN",1); |
846 | gMC->Gsatt("TRCL","SEEN",1); | |
1283eee5 | 847 | gMC->Gsatt("TPWL","SEEN",1); |
848 | gMC->Gsatt("TPWI","SEEN",1); | |
849 | gMC->Gsatt("TPWS","SEEN",1); | |
cfce8870 | 850 | gMC->Gsatt("TPW1","SEEN",1); |
1283eee5 | 851 | gMC->Gsatt("TPS1","SEEN",1); |
852 | gMC->Gsatt("TPS2","SEEN",1); | |
853 | gMC->Gsatt("TPG1","SEEN",1); | |
854 | gMC->Gsatt("TPG2","SEEN",1); | |
855 | gMC->Gsatt("TPWC","SEEN",1); | |
856 | gMC->Gsatt("TPSI","SEEN",1); | |
857 | gMC->Gsatt("TPSO","SEEN",1); | |
858 | gMC->Gsatt("TPCO","SEEN",1); | |
859 | gMC->Gsatt("TPOV","SEEN",1); | |
cfce8870 | 860 | gMC->Gsatt("TPVD","SEEN",1); |
cc80f89e | 861 | |
cfce8870 | 862 | gMC->Gdopt("hide", "on"); |
863 | gMC->Gdopt("shad", "on"); | |
864 | gMC->Gsatt("*", "fill", 7); | |
865 | gMC->SetClipBox("."); | |
866 | gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000); | |
867 | gMC->DefaultRange(); | |
868 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
869 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
870 | gMC->Gdman(18, 4, "MAN"); | |
871 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 872 | } |
873 | ||
874 | //_____________________________________________________________________________ | |
875 | void AliTPCv1::CreateMaterials() | |
876 | { | |
877 | // | |
878 | // Define materials for Time Projection Chamber | |
879 | // | |
880 | AliTPC::CreateMaterials(); | |
881 | } | |
882 | ||
883 | //_____________________________________________________________________________ | |
884 | void AliTPCv1::Init() | |
885 | { | |
886 | // | |
887 | // Initialises TPC detector after it has been created | |
888 | // | |
cfce8870 | 889 | |
1283eee5 | 890 | fIdSens1=gMC->VolId("TLST"); // L-sector |
891 | fIdSens2=gMC->VolId("TSST"); // S-sector | |
fe4da5cc | 892 | |
893 | printf("TPC version 1 initialized\n"); | |
894 | } | |
895 | ||
896 | //_____________________________________________________________________________ | |
897 | void AliTPCv1::StepManager() | |
898 | { | |
899 | // | |
900 | // Called at every step in the Time Projection Chamber | |
901 | // | |
0a6d8768 | 902 | Int_t copy, id, i; |
fe4da5cc | 903 | Float_t hits[4]; |
904 | Int_t vol[2]; | |
0a6d8768 | 905 | TLorentzVector p; |
fe4da5cc | 906 | TClonesArray &lhits = *fHits; |
1283eee5 | 907 | |
fe4da5cc | 908 | // |
1283eee5 | 909 | |
0a6d8768 | 910 | if(gMC->TrackCharge() && gMC->IsTrackEntering()) { |
fe4da5cc | 911 | // |
912 | // Only entering charged tracks | |
1283eee5 | 913 | // |
0a6d8768 | 914 | if((id=gMC->CurrentVolID(copy))==fIdSens1) { |
1283eee5 | 915 | |
916 | // L | |
917 | ||
918 | vol[1]=copy-1; // row | |
0a6d8768 | 919 | id=gMC->CurrentVolOffID(1,copy); |
1283eee5 | 920 | vol[0]=copy+fTPCParam->GetNInnerSector()-1; // sector |
cc80f89e | 921 | |
922 | //I.Belikov's modification | |
923 | if (vol[1]==0) { | |
924 | gMC->TrackMomentum(p); | |
925 | hits[0]=p[0]; | |
926 | hits[1]=p[1]; | |
927 | hits[2]=p[2]; | |
928 | hits[3]=0.; // this hit has no energy loss | |
929 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
930 | ||
931 | gMC->TrackPosition(p); | |
932 | hits[0]=p[0]; | |
933 | hits[1]=p[1]; | |
934 | hits[2]=p[2]; | |
935 | hits[3]=0.; // this hit has no energy loss | |
936 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
937 | } | |
938 | //end of I.Belikov's modification | |
fe4da5cc | 939 | } else if(id==fIdSens2) { |
1283eee5 | 940 | |
941 | // S | |
942 | ||
943 | vol[1]=copy-1; // row | |
944 | id=gMC->CurrentVolOffID(1,copy); // sector | |
945 | vol[0]=copy-1; | |
cc80f89e | 946 | |
947 | //I.Belikov's modification | |
948 | if (vol[1]==0) { | |
949 | gMC->TrackMomentum(p); | |
950 | hits[0]=p[0]; | |
951 | hits[1]=p[1]; | |
952 | hits[2]=p[2]; | |
953 | hits[3]=0.; // this hit has no energy loss | |
954 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
955 | ||
956 | gMC->TrackPosition(p); | |
957 | hits[0]=p[0]; | |
958 | hits[1]=p[1]; | |
959 | hits[2]=p[2]; | |
960 | hits[3]=0.; // this hit has no energy loss | |
961 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
962 | } | |
963 | //end of I.Belikov's modification | |
964 | ||
fe4da5cc | 965 | } else return; |
1283eee5 | 966 | |
0a6d8768 | 967 | gMC->TrackPosition(p); |
968 | for(i=0;i<3;++i) hits[i]=p[i]; | |
cc80f89e | 969 | hits[3]=1; //I'd like to have something positive here (I.Belikov) |
fe4da5cc | 970 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
971 | } | |
972 | } | |
1283eee5 | 973 | |
974 | ||
975 |