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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 | $Log$ | |
73042f01 | 18 | Revision 1.17.2.4 2000/06/26 07:39:42 kowal2 |
19 | Changes to obey the coding rules | |
20 | ||
21 | Revision 1.17.2.3 2000/06/25 08:38:41 kowal2 | |
22 | Splitted from AliTPCtracking | |
23 | ||
24 | Revision 1.17.2.2 2000/06/16 12:58:13 kowal2 | |
25 | Changed parameter settings | |
26 | ||
27 | Revision 1.17.2.1 2000/06/09 07:15:07 kowal2 | |
28 | ||
29 | Defaults loaded automatically (hard-wired) | |
30 | Optional parameters can be set via macro called in the constructor | |
31 | ||
32 | Revision 1.17 2000/05/15 10:00:30 kowal2 | |
33 | Corrected bug in the TPC geometry, thanks to Ivana Hrivnacova | |
34 | ||
e94dd9ca | 35 | Revision 1.16 2000/04/17 09:37:33 kowal2 |
36 | removed obsolete AliTPCDigitsDisplay.C | |
37 | ||
cc80f89e | 38 | Revision 1.15.8.2 2000/04/10 08:29:48 kowal2 |
39 | ||
40 | Different pad geometry for different sectors | |
41 | Updated readouch chambers geometry | |
42 | ||
43 | Revision 1.15.8.1 2000/04/10 07:56:53 kowal2 | |
44 | Not used anymore - removed | |
45 | ||
46 | Revision 1.15 1999/11/04 17:28:07 fca | |
47 | Correct barrel part of HV Degrader | |
48 | ||
a5371c42 | 49 | Revision 1.14 1999/10/08 06:27:23 fca |
50 | Corrected bug in the HV degrader geometry, thanks to G.Tabary | |
51 | ||
d183a600 | 52 | Revision 1.13 1999/10/04 13:39:54 fca |
53 | Correct array index problem | |
54 | ||
cdde5b1e | 55 | Revision 1.12 1999/09/29 09:24:34 fca |
56 | Introduction of the Copyright and cvs Log | |
57 | ||
4c039060 | 58 | */ |
59 | ||
73042f01 | 60 | // |
fe4da5cc | 61 | /////////////////////////////////////////////////////////////////////////////// |
62 | // // | |
63 | // Time Projection Chamber version 1 -- detailed TPC and fast simulation // | |
64 | // // | |
65 | //Begin_Html | |
66 | /* | |
1439f98e | 67 | <img src="picts/AliTPCv1Class.gif"> |
fe4da5cc | 68 | */ |
69 | //End_Html | |
70 | // // | |
71 | // // | |
72 | /////////////////////////////////////////////////////////////////////////////// | |
73 | ||
74 | #include <TMath.h> | |
75 | #include <TGeometry.h> | |
76 | #include <TNode.h> | |
77 | #include <TBRIK.h> | |
78 | #include <TTUBE.h> | |
79 | #include "AliTPCv1.h" | |
80 | #include "AliRun.h" | |
81 | #include <iostream.h> | |
82 | #include <fstream.h> | |
83 | ||
84 | #include "AliMC.h" | |
85 | #include "AliConst.h" | |
86 | ||
8c555625 | 87 | #include "AliTPCParam.h" |
73042f01 | 88 | #include "AliTPCParamSR.h" |
cc80f89e | 89 | #include "AliTPCDigitsArray.h" |
73042f01 | 90 | #include <TInterpreter.h> |
8c555625 | 91 | |
fe4da5cc | 92 | ClassImp(AliTPCv1) |
93 | ||
94 | //_____________________________________________________________________________ | |
95 | AliTPCv1::AliTPCv1(const char *name, const char *title) | |
96 | :AliTPC(name, title) { | |
97 | // | |
98 | // Standard constructor for Time Projection Chamber | |
99 | // | |
100 | fIdSens1=fIdSens2=0; | |
73042f01 | 101 | |
102 | SetGasMixt(2,20,10,-1,0.9,0.1,0.); | |
103 | ||
104 | if (fTPCParam) | |
105 | fTPCParam->Write(fTPCParam->GetTitle()); | |
fe4da5cc | 106 | } |
107 | ||
108 | //_____________________________________________________________________________ | |
109 | void AliTPCv1::CreateGeometry() | |
110 | { | |
111 | // | |
112 | // Creates geometry for Time Projection Chamber version 1 | |
113 | // Detailed geometry -- Fast simulation | |
114 | // Origin M.Kowalski | |
115 | // | |
116 | //Begin_Html | |
117 | /* | |
1439f98e | 118 | <img src="picts/AliTPCv1.gif"> |
fe4da5cc | 119 | */ |
120 | //End_Html | |
121 | //Begin_Html | |
122 | /* | |
1439f98e | 123 | <img src="picts/AliTPCv1Tree.gif"> |
fe4da5cc | 124 | */ |
125 | //End_Html | |
126 | ||
8c555625 | 127 | |
1283eee5 | 128 | Int_t *idtmed = fIdtmed->GetArray(); |
8c555625 | 129 | |
1283eee5 | 130 | Float_t dm[21]; |
62a73ee5 | 131 | Int_t idrotm[120]; |
1283eee5 | 132 | |
133 | Int_t nRotMat = 0; | |
134 | ||
135 | ||
fe4da5cc | 136 | // ---------------------------------------------------- |
1283eee5 | 137 | // FIELD CAGE WITH ENDCAPS - G10 |
fe4da5cc | 138 | // THIS IS ALSO A TPC MOTHER VOLUME |
139 | // ---------------------------------------------------- | |
1283eee5 | 140 | |
fe4da5cc | 141 | dm[0] = 76.; |
142 | dm[1] = 278.; | |
143 | dm[2] = 275.; | |
1283eee5 | 144 | |
145 | gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3); | |
146 | ||
147 | //----------------------------------------------------- | |
148 | // Endcap cover c-fibre 0.86% X0 | |
149 | //----------------------------------------------------- | |
150 | ||
151 | dm[0] = 78.; | |
152 | dm[1] = 258.; | |
153 | dm[2] = 0.95; | |
154 | ||
155 | gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3); | |
156 | ||
157 | //----------------------------------------------------- | |
158 | // Drift gas , leave 2 cm at the outer radius | |
159 | // and inner raddius | |
160 | //----------------------------------------------------- | |
161 | ||
162 | dm[0] = 78.; | |
163 | dm[1] = 258.; | |
fe4da5cc | 164 | dm[2] = 250.; |
fe4da5cc | 165 | |
1283eee5 | 166 | gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3); |
167 | ||
168 | ||
169 | //------------------------------------------------------ | |
170 | // membrane holder - carbon fiber | |
171 | //------------------------------------------------------ | |
172 | ||
173 | ||
174 | gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0); | |
175 | ||
176 | dm[0] = 252.; | |
177 | dm[1] = 258.; | |
178 | dm[2] = 0.2; | |
179 | ||
180 | gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
181 | ||
182 | dm[0] = 78.; | |
cdde5b1e | 183 | dm[1] = 82.; |
1283eee5 | 184 | dm[2] = 0.1; |
185 | ||
186 | gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3); | |
187 | ||
188 | //---------------------------------------------------------- | |
189 | // HV membrane - 25 microns of mylar | |
190 | //---------------------------------------------------------- | |
191 | ||
192 | dm[0] = 82.; | |
193 | dm[1] = 252.; | |
194 | dm[2] = 0.00125; | |
195 | ||
196 | gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3); | |
197 | ||
198 | gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY"); | |
199 | ||
200 | gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
201 | ||
202 | //---------------------------------------------------------- | |
203 | // "side" gas volume, the same as the drift gas | |
204 | // the readout chambers are placed there. | |
205 | //---------------------------------------------------------- | |
206 | ||
207 | dm[0] = 78.; | |
208 | dm[1] = 258.; | |
209 | dm[2] = 0.5*(275. - 250.); | |
210 | ||
211 | gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3); | |
212 | ||
73042f01 | 213 | Float_t zSide = dm[2]; // 1/2 of the side gas thickness |
1283eee5 | 214 | |
215 | //----------------------------------------------------------- | |
216 | // Readout chambers , 25% of X0, I use Al as the material | |
217 | //----------------------------------------------------------- | |
218 | ||
73042f01 | 219 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); |
220 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
1283eee5 | 221 | |
73042f01 | 222 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); |
223 | Float_t outerAngleShift = fTPCParam->GetOuterAngleShift(); | |
1283eee5 | 224 | |
225 | ||
226 | Int_t nInnerSector = fTPCParam->GetNInnerSector()/2; | |
227 | Int_t nOuterSector = fTPCParam->GetNOuterSector()/2; | |
228 | ||
229 | ||
73042f01 | 230 | Float_t inSecLowEdge = fTPCParam->GetInnerRadiusLow(); |
231 | Float_t inSecUpEdge = fTPCParam->GetInnerRadiusUp(); | |
1283eee5 | 232 | |
73042f01 | 233 | Float_t ouSecLowEdge = fTPCParam->GetOuterRadiusLow(); |
234 | Float_t ouSecUpEdge = fTPCParam->GetOuterRadiusUp(); | |
1283eee5 | 235 | |
73042f01 | 236 | Float_t secThick = 2.225; // Al |
1283eee5 | 237 | |
1283eee5 | 238 | // S (Inner) sectors |
239 | ||
73042f01 | 240 | Float_t lowEdge = fTPCParam->GetInnerFrameSpace(); |
cc80f89e | 241 | |
73042f01 | 242 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-lowEdge; |
243 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-lowEdge; | |
244 | dm[2] = 0.5*secThick; | |
245 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); | |
1283eee5 | 246 | |
73042f01 | 247 | Float_t xCenterS = inSecLowEdge+dm[3]; |
1283eee5 | 248 | |
249 | gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4); | |
250 | ||
251 | // L (Outer) sectors | |
252 | ||
73042f01 | 253 | Float_t upEdge = fTPCParam->GetOuterFrameSpace(); |
cc80f89e | 254 | |
73042f01 | 255 | dm[0] = ouSecLowEdge*TMath::Tan(0.5*outerOpenAngle)-upEdge; |
256 | dm[1] = ouSecUpEdge*TMath::Tan(0.5*outerOpenAngle)-upEdge; | |
257 | dm[2] = 0.5*secThick; | |
258 | dm[3] = 0.5*(ouSecUpEdge-ouSecLowEdge); | |
1283eee5 | 259 | |
73042f01 | 260 | Float_t xCenterL = ouSecLowEdge+dm[3]; |
1283eee5 | 261 | |
262 | gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4); | |
263 | ||
73042f01 | 264 | Float_t z1 = -zSide + secThick*0.5; |
1283eee5 | 265 | |
266 | //------------------------------------------------------------------ | |
267 | // S sectors - "gas sectors" (TRD1) | |
268 | //------------------------------------------------------------------ | |
269 | ||
73042f01 | 270 | dm[0] = inSecLowEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; |
271 | dm[1] = inSecUpEdge*TMath::Tan(0.5*innerOpenAngle)-0.01; | |
1283eee5 | 272 | dm[2] = 0.5*(250. - 0.001); |
73042f01 | 273 | dm[3] = 0.5*(inSecUpEdge-inSecLowEdge); |
1283eee5 | 274 | |
275 | gMC->Gsvolu("TSGA", "TRD1", idtmed[3], dm, 4); // nonsensitive | |
276 | ||
277 | //------------------------------------------------------------------ | |
278 | // sensitive strips - "pad rows" | |
279 | //------------------------------------------------------------------ | |
280 | ||
281 | Int_t ns; | |
282 | Float_t r1,r2,zz; | |
283 | ||
73042f01 | 284 | Float_t stripThick = 0.01; // 100 microns |
cc80f89e | 285 | Float_t dead; |
1283eee5 | 286 | |
287 | gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0); | |
288 | ||
289 | dm[2] = 0.5*(250. - 0.002); | |
73042f01 | 290 | dm[3] = 0.5 * stripThick; |
1283eee5 | 291 | |
8c555625 | 292 | |
1283eee5 | 293 | // S-sector |
8c555625 | 294 | |
cc80f89e | 295 | dead = fTPCParam->GetInnerWireMount(); |
296 | ||
1283eee5 | 297 | for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) { |
298 | ||
299 | r1 = fTPCParam->GetPadRowRadiiLow(ns); | |
73042f01 | 300 | r2 = r1 + stripThick; |
301 | dm[0] = r1 * TMath::Tan(0.5*innerOpenAngle) - dead; | |
302 | dm[1] = r2 * TMath::Tan(0.5*innerOpenAngle) - dead; | |
1283eee5 | 303 | |
73042f01 | 304 | zz = -inSecLowEdge -0.5*(inSecUpEdge-inSecLowEdge); |
1283eee5 | 305 | zz += r1; |
306 | zz += dm[3]; | |
307 | ||
308 | gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4); | |
309 | ||
8c555625 | 310 | |
fe4da5cc | 311 | } |
8c555625 | 312 | |
1283eee5 | 313 | //----------------------------------------------------------------- |
314 | // L sectors - "gas sectors" (PGON to avoid overlaps) | |
315 | //----------------------------------------------------------------- | |
316 | ||
73042f01 | 317 | dm[0] = 360.*kDegrad - 0.5*outerOpenAngle; |
1283eee5 | 318 | dm[0] *= kRaddeg; |
319 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
320 | ||
73042f01 | 321 | dm[1] = outerOpenAngle*kRaddeg; |
1283eee5 | 322 | dm[1] = (Float_t)TMath::Nint(dm[1]); |
323 | ||
324 | dm[2] = 1.; | |
325 | dm[3] = 4.; | |
326 | ||
327 | dm[4] = 0.002; | |
73042f01 | 328 | dm[5] = ouSecLowEdge; |
329 | dm[6] = 252.*TMath::Cos(0.5*outerOpenAngle)-0.002; | |
1283eee5 | 330 | |
331 | dm[7] = dm[4]+0.2; | |
332 | dm[8] = dm[5]; | |
333 | dm[9] = dm[6]; | |
334 | ||
335 | dm[10] = dm[7]; | |
73042f01 | 336 | dm[11] = ouSecLowEdge; |
337 | dm[12] = ouSecUpEdge; | |
1283eee5 | 338 | |
339 | dm[13] = 250.; | |
340 | dm[14] = dm[11]; | |
341 | dm[15] = dm[12]; | |
342 | ||
343 | gMC->Gsvolu("TLGA","PGON",idtmed[3],dm,16); | |
344 | ||
345 | //------------------------------------------------------------------ | |
346 | // sensitive strips - "pad rows" | |
347 | //------------------------------------------------------------------ | |
348 | ||
349 | Float_t rmax = dm[6]; | |
350 | ||
351 | // L-sectors | |
352 | ||
353 | gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0); | |
354 | ||
73042f01 | 355 | dm[0] = 360.*kDegrad - 0.5*outerOpenAngle; |
1283eee5 | 356 | dm[0] *= kRaddeg; |
357 | dm[0] = (Float_t)TMath::Nint(dm[0]); | |
358 | ||
73042f01 | 359 | dm[1] = outerOpenAngle*kRaddeg; |
1283eee5 | 360 | dm[1] = (Float_t)TMath::Nint(dm[1]); |
361 | ||
362 | dm[2] = 1.; | |
363 | dm[3] = 2.; | |
364 | ||
365 | dm[7] = 250.; | |
366 | ||
cc80f89e | 367 | dead = fTPCParam->GetOuterWireMount(); |
368 | ||
73042f01 | 369 | Float_t xx = dead/TMath::Tan(0.5*outerOpenAngle); |
1283eee5 | 370 | |
371 | for(ns=0;ns<fTPCParam->GetNRowUp();ns++){ | |
372 | ||
373 | r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx; | |
73042f01 | 374 | r2 = r1 + stripThick; |
8c555625 | 375 | |
1283eee5 | 376 | dm[5] = r1; |
377 | dm[6] = r2; | |
378 | ||
379 | dm[8] = r1; | |
380 | dm[9] = r2; | |
381 | ||
382 | if(r2+xx < rmax){ | |
383 | dm[4] = 0.002; | |
384 | } | |
385 | else{ | |
386 | dm[4] = 0.202; | |
387 | } | |
388 | ||
389 | gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10); | |
8c555625 | 390 | |
fe4da5cc | 391 | } |
fe4da5cc | 392 | |
1283eee5 | 393 | //------------------------------------------------------------------ |
394 | // Positioning of the S-sector readout chambers | |
395 | //------------------------------------------------------------------ | |
396 | ||
397 | Float_t zs = 0.5*(250.+0.002); | |
398 | ||
399 | Float_t theta1,theta2,theta3; | |
400 | Float_t phi1,phi2,phi3; | |
401 | Float_t alpha; | |
402 | Float_t x,y; | |
403 | ||
404 | for(ns=0;ns<nInnerSector;ns++){ | |
405 | ||
73042f01 | 406 | phi1 = ns * innerOpenAngle + 270.*kDegrad + innerAngleShift; |
1283eee5 | 407 | phi1 *= kRaddeg; // in degrees |
408 | ||
409 | phi1 = (Float_t)TMath::Nint(phi1); | |
410 | ||
411 | if (phi1 > 360.) phi1 -= 360.; | |
62a73ee5 | 412 | |
1283eee5 | 413 | |
fe4da5cc | 414 | theta1 = 90.; |
415 | phi2 = 90.; | |
416 | theta2 = 180.; | |
73042f01 | 417 | phi3 = ns * innerOpenAngle + innerAngleShift; |
1283eee5 | 418 | phi3 *= kRaddeg; // in degrees |
419 | ||
420 | phi3 = (Float_t)TMath::Nint(phi3); | |
421 | ||
422 | if(phi3 > 360.) phi3 -= 360.; | |
423 | ||
fe4da5cc | 424 | theta3 = 90.; |
1283eee5 | 425 | |
426 | alpha = phi3*kDegrad; | |
427 | ||
428 | x = xCenterS * TMath::Cos(alpha); | |
429 | y = xCenterS * TMath::Sin(alpha); | |
430 | ||
431 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
432 | ||
433 | gMC->Gspos("TRCS", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
434 | ||
435 | gMC->Gspos("TSGA",ns+1,"TGAS",x,y,zs,idrotm[nRotMat], "ONLY"); | |
436 | gMC->Gspos("TSGA",ns+1+nInnerSector,"TGAS",x,y,-zs,idrotm[nRotMat], "ONLY"); | |
437 | ||
438 | nRotMat++; | |
439 | ||
440 | } | |
fe4da5cc | 441 | |
1283eee5 | 442 | //------------------------------------------------------------------- |
443 | // Positioning of the L-sectors readout chambers | |
444 | //------------------------------------------------------------------- | |
fe4da5cc | 445 | |
1283eee5 | 446 | for(ns=0;ns<nOuterSector;ns++){ |
73042f01 | 447 | phi1 = ns * outerOpenAngle + 270.*kDegrad + outerAngleShift; |
1283eee5 | 448 | phi1 *= kRaddeg; // in degrees |
fe4da5cc | 449 | |
1283eee5 | 450 | phi1 = (Float_t)TMath::Nint(phi1); |
fe4da5cc | 451 | |
1283eee5 | 452 | |
453 | if (phi1 > 360.) phi1 -= 360.; | |
454 | ||
fe4da5cc | 455 | theta1 = 90.; |
456 | phi2 = 90.; | |
457 | theta2 = 180.; | |
73042f01 | 458 | phi3 = ns * outerOpenAngle+outerAngleShift; |
1283eee5 | 459 | phi3 *= kRaddeg; // in degrees |
460 | ||
461 | phi3 = (Float_t)TMath::Nint(phi3); | |
462 | ||
463 | ||
464 | if(phi3 > 360.) phi3 -= 360.; | |
465 | ||
fe4da5cc | 466 | theta3 = 90.; |
1283eee5 | 467 | |
468 | alpha = phi3*kDegrad; | |
469 | ||
470 | x = xCenterL * TMath::Cos(alpha); | |
471 | y = xCenterL * TMath::Sin(alpha); | |
472 | ||
473 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
474 | ||
475 | ||
476 | gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY"); | |
477 | ||
478 | nRotMat++; | |
479 | ||
fe4da5cc | 480 | } |
fe4da5cc | 481 | |
1283eee5 | 482 | //------------------------------------------------------------------- |
483 | // Positioning of the L-sectors (gas sectors) | |
484 | //------------------------------------------------------------------- | |
485 | ||
486 | for(ns=0;ns<nOuterSector;ns++){ | |
487 | ||
73042f01 | 488 | phi1 = ns*outerOpenAngle + outerAngleShift; |
1283eee5 | 489 | phi1 *= kRaddeg; |
490 | ||
491 | phi1 = (Float_t)TMath::Nint(phi1); | |
492 | if(phi1>360.) phi1 -= 360.; | |
493 | ||
494 | theta1 = 90.; | |
495 | ||
496 | phi2 = 90. + phi1; | |
497 | if(phi2>360.) phi2 -= 360.; | |
498 | ||
499 | theta2 = 90.; | |
500 | ||
501 | phi3 = 0.; | |
502 | theta3 = 0.; | |
503 | ||
504 | alpha = phi1*kDegrad; | |
505 | ||
506 | ||
507 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
508 | ||
509 | ||
510 | gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
511 | ||
512 | nRotMat++; | |
513 | ||
514 | // reflection !! | |
515 | ||
516 | phi3 = 0.; | |
517 | theta3 = 180.; | |
518 | ||
519 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); | |
520 | ||
521 | gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
522 | ||
523 | nRotMat++; | |
524 | } | |
fe4da5cc | 525 | |
73042f01 | 526 | Float_t z0 = zSide - 0.95; |
1283eee5 | 527 | |
528 | gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
529 | ||
fe4da5cc | 530 | // ========================================================== |
531 | // wheels | |
532 | // ========================================================== | |
1283eee5 | 533 | |
534 | // | |
535 | // auxilary structures | |
536 | // | |
537 | ||
538 | ||
539 | gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air" | |
540 | ||
fe4da5cc | 541 | // ---------------------------------------------------------- |
542 | // Large wheel -> positioned in the TPC | |
543 | // ---------------------------------------------------------- | |
1283eee5 | 544 | |
545 | ||
546 | z0 = 263.5; // TPC length - 1/2 spoke wheel width | |
547 | ||
548 | dm[0] = 258.; | |
fe4da5cc | 549 | dm[1] = 278.; |
550 | dm[2] = 11.5; | |
fe4da5cc | 551 | |
1283eee5 | 552 | gMC->Gsvolu("TPWL", "TUBE", idtmed[0], dm, 3); |
553 | ||
554 | dm[0] = dm[0]+2.; | |
555 | dm[1] = 278.; | |
556 | dm[2] = dm[2]-2.; | |
557 | ||
558 | gMC->Gsposp("TPWI",1,"TPWL",0.,0.,0.,0,"ONLY",dm,3); | |
559 | ||
560 | gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY"); | |
561 | gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY"); | |
562 | ||
563 | // | |
564 | // Outer vessel + CO2 HV degrader | |
565 | // | |
566 | ||
567 | dm[0] = 260.; | |
568 | dm[1] = 278.; | |
569 | dm[2] = 252.; | |
570 | ||
571 | gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3); | |
572 | ||
573 | dm[0] = 275.; | |
fe4da5cc | 574 | dm[1] = 278.; |
fe4da5cc | 575 | |
1283eee5 | 576 | gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3); |
577 | ||
578 | gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY"); | |
579 | ||
580 | ||
e94dd9ca | 581 | |
1283eee5 | 582 | |
583 | gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY"); | |
584 | ||
585 | ||
586 | //---------------------------------------------------------- | |
587 | // Small wheel -> positioned in "side gas | |
588 | //---------------------------------------------------------- | |
589 | ||
590 | dm[0] = 78.; | |
fe4da5cc | 591 | dm[1] = 82.; |
592 | dm[2] = 11.5; | |
1283eee5 | 593 | |
594 | gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3); | |
595 | ||
596 | dm[0] = 78.; | |
597 | dm[1] = dm[1]-2; | |
598 | dm[2] = dm[2]-2.; | |
599 | ||
600 | gMC->Gsvolu("TPW1", "TUBE", idtmed[2], dm, 3); | |
fe4da5cc | 601 | |
1283eee5 | 602 | gMC->Gspos("TPW1", 1, "TPWS", 0., 0., 0., 0, "ONLY"); |
603 | ||
604 | z0 = 1.; // spoke wheel is shifted w.r.t. center of the "side gas" | |
605 | ||
606 | gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY"); | |
607 | ||
608 | ||
609 | // to avoid overlaps | |
610 | ||
611 | dm[0] = 76.; | |
612 | dm[1] = 78.; | |
613 | dm[2] = 11.5; | |
614 | ||
615 | gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3); | |
616 | ||
fe4da5cc | 617 | dm[2] = 9.5; |
1283eee5 | 618 | |
619 | gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3); | |
620 | ||
621 | gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY"); | |
622 | ||
623 | z0= 263.5; | |
fe4da5cc | 624 | |
1283eee5 | 625 | gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY"); |
626 | gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
627 | ||
628 | // G10 plug | |
629 | ||
630 | dm[0] = 76.; | |
7d7bb9e5 | 631 | dm[1] = 78.; |
632 | dm[2] = 1.; | |
1283eee5 | 633 | |
634 | gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3); | |
635 | ||
636 | z0 = 251.; | |
637 | ||
638 | gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY"); | |
639 | gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY"); | |
640 | ||
641 | ||
642 | //--------------------------------------------------------- | |
643 | // central wheel 6 (radial direction) x 4 (along z) cm2 | |
644 | //--------------------------------------------------------- | |
645 | ||
646 | dm[0] = 140.; | |
647 | dm[1] = 146.; | |
fe4da5cc | 648 | dm[2] = 2.; |
1283eee5 | 649 | |
650 | gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3); | |
651 | ||
652 | dm[0] = dm[0] + 2.; | |
653 | dm[1] = dm[1] - 2.; | |
654 | dm[2] = dm[2] - 1.; | |
655 | ||
656 | gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3); | |
657 | ||
73042f01 | 658 | z0 = zSide - 1.9 - 2.; |
1283eee5 | 659 | |
660 | gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY"); | |
661 | ||
662 | // | |
663 | ||
664 | gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke | |
665 | ||
666 | ||
667 | //--------------------------------------------------------- | |
668 | // inner spokes (nSectorInner) | |
669 | //--------------------------------------------------------- | |
670 | ||
671 | dm[0] = 0.5*(139.9-82.1); | |
fe4da5cc | 672 | dm[1] = 3.; |
673 | dm[2] = 2.; | |
1283eee5 | 674 | |
675 | Float_t x1 = dm[0]+82.; | |
676 | ||
677 | gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3); | |
678 | ||
679 | dm[1] = dm[1]-1.; | |
680 | dm[2] = dm[2]-1.; | |
681 | ||
682 | gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3); | |
683 | ||
684 | for(ns=0;ns<nInnerSector;ns++){ | |
685 | ||
73042f01 | 686 | phi1 = 0.5*innerOpenAngle + ns*innerOpenAngle + innerAngleShift; |
1283eee5 | 687 | theta1=90.; |
688 | phi1 *=kRaddeg; | |
689 | ||
690 | phi1 = (Float_t)TMath::Nint(phi1); | |
691 | if(phi1>360.) phi1 -= 360.; | |
692 | ||
693 | phi2 = phi1+90.; | |
694 | if(phi2>360.) phi2 -= 360.; | |
695 | theta2=90.; | |
696 | phi3=0.; | |
697 | theta3=0.; | |
698 | ||
fe4da5cc | 699 | alpha = phi1 * kDegrad; |
700 | x = x1 * TMath::Cos(alpha); | |
1283eee5 | 701 | y = x1 * TMath::Sin(alpha); |
702 | ||
703 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
704 | ||
705 | gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
706 | ||
707 | nRotMat++; | |
708 | ||
fe4da5cc | 709 | } |
1283eee5 | 710 | |
711 | //------------------------------------------------------------- | |
712 | // outer spokes (nSectorOuter) | |
713 | //------------------------------------------------------------- | |
714 | ||
715 | dm[0] = 0.5*(257.9-146.1); | |
716 | dm[1] = 3.; | |
717 | dm[2] = 2.; | |
718 | ||
719 | x1 = dm[0] + 146.; | |
720 | ||
721 | gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3); | |
722 | ||
723 | dm[1] = dm[1] - 1.; | |
724 | dm[2] = dm[2] - 1.; | |
725 | ||
726 | gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3); | |
727 | ||
728 | for(ns=0;ns<nOuterSector;ns++){ | |
729 | ||
73042f01 | 730 | phi1 = 0.5*outerOpenAngle + ns*outerOpenAngle + outerAngleShift; |
1283eee5 | 731 | theta1=90.; |
732 | phi1 *=kRaddeg; | |
733 | ||
734 | phi1 = (Float_t)TMath::Nint(phi1); | |
735 | if(phi1>360.) phi1 -= 360.; | |
736 | ||
737 | phi2 = phi1+90.; | |
738 | if(phi2>360.) phi2 -= 360.; | |
739 | theta2=90.; | |
740 | phi3=0.; | |
741 | theta3=0.; | |
742 | ||
fe4da5cc | 743 | alpha = phi1 * kDegrad; |
1283eee5 | 744 | x = x1 * TMath::Cos(alpha); |
745 | y = x1 * TMath::Sin(alpha); | |
746 | ||
747 | AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3); | |
748 | ||
749 | gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY"); | |
750 | ||
751 | nRotMat++; | |
752 | ||
753 | } | |
fe4da5cc | 754 | |
1283eee5 | 755 | |
fe4da5cc | 756 | |
fe4da5cc | 757 | // -------------------------------------------------------- |
758 | // put the readout chambers into the TPC | |
759 | // -------------------------------------------------------- | |
1283eee5 | 760 | |
fe4da5cc | 761 | theta1 = 90.; |
762 | phi1 = 0.; | |
763 | theta2 = 90.; | |
764 | phi2 = 270.; | |
765 | theta3 = 180.; | |
766 | phi3 = 0.; | |
767 | ||
1283eee5 | 768 | AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3); |
fe4da5cc | 769 | |
73042f01 | 770 | z0 = zSide + 250.; |
fe4da5cc | 771 | |
cfce8870 | 772 | gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY"); |
1283eee5 | 773 | gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[nRotMat], "ONLY"); |
fe4da5cc | 774 | |
cfce8870 | 775 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 776 | |
1283eee5 | 777 | //---------------------------------------------------- |
778 | // Inner vessel and HV degrader | |
779 | //---------------------------------------------------- | |
fe4da5cc | 780 | |
fe4da5cc | 781 | dm[0] = 0.; |
782 | dm[1] = 360.; | |
783 | dm[2] = 4.; | |
784 | ||
785 | dm[3] = -250.; | |
1283eee5 | 786 | dm[4] = 74.4; |
fe4da5cc | 787 | dm[5] = 76.; |
1283eee5 | 788 | |
fe4da5cc | 789 | dm[6] = -64.5; |
790 | dm[7] = 50.; | |
791 | dm[8] = 76.; | |
1283eee5 | 792 | |
d183a600 | 793 | dm[9] = 64.5; |
fe4da5cc | 794 | dm[10] = 50.; |
795 | dm[11] = 76.; | |
1283eee5 | 796 | |
fe4da5cc | 797 | dm[12] = 250.; |
1283eee5 | 798 | dm[13] = 74.4; |
fe4da5cc | 799 | dm[14] = 76.; |
1283eee5 | 800 | |
801 | gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2 | |
802 | ||
803 | // cone parts | |
fe4da5cc | 804 | |
805 | dm[0] = 0.; | |
806 | dm[1] = 360.; | |
1283eee5 | 807 | dm[2] = 2.; |
808 | ||
809 | dm[3] = 64.5; | |
810 | dm[4] = 50.; | |
811 | dm[5] = 51.6; | |
812 | ||
813 | dm[6] = 250.; | |
814 | dm[7] = 74.4; | |
815 | dm[8] = 76.; | |
816 | ||
817 | ||
818 | gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre | |
819 | ||
820 | gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
821 | gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY"); | |
822 | ||
823 | // barrel part | |
824 | ||
825 | dm[0] = 50.; | |
826 | dm[1] = 50.5; | |
a5371c42 | 827 | dm[2] = 64.5; |
1283eee5 | 828 | |
829 | gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3); | |
830 | ||
831 | gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY"); | |
832 | ||
833 | gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY"); | |
834 | ||
fe4da5cc | 835 | |
1283eee5 | 836 | |
fe4da5cc | 837 | |
1283eee5 | 838 | |
fe4da5cc | 839 | // --------------------------------------------------- |
840 | // volumes ordering | |
841 | // --------------------------------------------------- | |
cfce8870 | 842 | gMC->Gsord("TGAS", 6); |
843 | gMC->Gsord("TPSG", 6); | |
844 | gMC->Gsord("TSGA", 3); | |
8022212f | 845 | gMC->Gsord("TLGA", 4); |
1283eee5 | 846 | |
847 | } // end of function | |
848 | ||
fe4da5cc | 849 | |
850 | //_____________________________________________________________________________ | |
8c555625 | 851 | void AliTPCv1::DrawDetector() |
fe4da5cc | 852 | { |
853 | // | |
854 | // Draw a shaded view of the Time Projection Chamber version 1 | |
855 | // | |
856 | ||
fe4da5cc | 857 | // Set everything unseen |
cfce8870 | 858 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 859 | // |
860 | // Set ALIC mother transparent | |
cfce8870 | 861 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 862 | // |
863 | // Set the volumes visible | |
cfce8870 | 864 | gMC->Gsatt("TPC","SEEN",0); |
865 | gMC->Gsatt("TGAS","SEEN",0); | |
866 | gMC->Gsatt("TPSG","SEEN",0); | |
867 | gMC->Gsatt("TPHV","SEEN",1); | |
1283eee5 | 868 | gMC->Gsatt("TPMH","SEEN",1); |
869 | gMC->Gsatt("TPEC","SEEN",0); | |
cfce8870 | 870 | gMC->Gsatt("TRCS","SEEN",1); |
871 | gMC->Gsatt("TRCL","SEEN",1); | |
1283eee5 | 872 | gMC->Gsatt("TPWL","SEEN",1); |
873 | gMC->Gsatt("TPWI","SEEN",1); | |
874 | gMC->Gsatt("TPWS","SEEN",1); | |
cfce8870 | 875 | gMC->Gsatt("TPW1","SEEN",1); |
1283eee5 | 876 | gMC->Gsatt("TPS1","SEEN",1); |
877 | gMC->Gsatt("TPS2","SEEN",1); | |
878 | gMC->Gsatt("TPG1","SEEN",1); | |
879 | gMC->Gsatt("TPG2","SEEN",1); | |
880 | gMC->Gsatt("TPWC","SEEN",1); | |
881 | gMC->Gsatt("TPSI","SEEN",1); | |
882 | gMC->Gsatt("TPSO","SEEN",1); | |
883 | gMC->Gsatt("TPCO","SEEN",1); | |
884 | gMC->Gsatt("TPOV","SEEN",1); | |
cfce8870 | 885 | gMC->Gsatt("TPVD","SEEN",1); |
cc80f89e | 886 | |
cfce8870 | 887 | gMC->Gdopt("hide", "on"); |
888 | gMC->Gdopt("shad", "on"); | |
889 | gMC->Gsatt("*", "fill", 7); | |
890 | gMC->SetClipBox("."); | |
891 | gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000); | |
892 | gMC->DefaultRange(); | |
893 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
894 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
895 | gMC->Gdman(18, 4, "MAN"); | |
896 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 897 | } |
898 | ||
899 | //_____________________________________________________________________________ | |
900 | void AliTPCv1::CreateMaterials() | |
901 | { | |
902 | // | |
903 | // Define materials for Time Projection Chamber | |
904 | // | |
905 | AliTPC::CreateMaterials(); | |
906 | } | |
907 | ||
908 | //_____________________________________________________________________________ | |
909 | void AliTPCv1::Init() | |
910 | { | |
911 | // | |
912 | // Initialises TPC detector after it has been created | |
913 | // | |
cfce8870 | 914 | |
1283eee5 | 915 | fIdSens1=gMC->VolId("TLST"); // L-sector |
916 | fIdSens2=gMC->VolId("TSST"); // S-sector | |
fe4da5cc | 917 | |
918 | printf("TPC version 1 initialized\n"); | |
919 | } | |
920 | ||
921 | //_____________________________________________________________________________ | |
922 | void AliTPCv1::StepManager() | |
923 | { | |
924 | // | |
925 | // Called at every step in the Time Projection Chamber | |
926 | // | |
0a6d8768 | 927 | Int_t copy, id, i; |
fe4da5cc | 928 | Float_t hits[4]; |
929 | Int_t vol[2]; | |
0a6d8768 | 930 | TLorentzVector p; |
fe4da5cc | 931 | TClonesArray &lhits = *fHits; |
1283eee5 | 932 | |
fe4da5cc | 933 | // |
1283eee5 | 934 | |
0a6d8768 | 935 | if(gMC->TrackCharge() && gMC->IsTrackEntering()) { |
fe4da5cc | 936 | // |
937 | // Only entering charged tracks | |
1283eee5 | 938 | // |
0a6d8768 | 939 | if((id=gMC->CurrentVolID(copy))==fIdSens1) { |
1283eee5 | 940 | |
941 | // L | |
942 | ||
943 | vol[1]=copy-1; // row | |
0a6d8768 | 944 | id=gMC->CurrentVolOffID(1,copy); |
1283eee5 | 945 | vol[0]=copy+fTPCParam->GetNInnerSector()-1; // sector |
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 | |
fe4da5cc | 964 | } else if(id==fIdSens2) { |
1283eee5 | 965 | |
966 | // S | |
967 | ||
968 | vol[1]=copy-1; // row | |
969 | id=gMC->CurrentVolOffID(1,copy); // sector | |
970 | vol[0]=copy-1; | |
cc80f89e | 971 | |
972 | //I.Belikov's modification | |
973 | if (vol[1]==0) { | |
974 | gMC->TrackMomentum(p); | |
975 | hits[0]=p[0]; | |
976 | hits[1]=p[1]; | |
977 | hits[2]=p[2]; | |
978 | hits[3]=0.; // this hit has no energy loss | |
979 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
980 | ||
981 | gMC->TrackPosition(p); | |
982 | hits[0]=p[0]; | |
983 | hits[1]=p[1]; | |
984 | hits[2]=p[2]; | |
985 | hits[3]=0.; // this hit has no energy loss | |
986 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
987 | } | |
988 | //end of I.Belikov's modification | |
989 | ||
fe4da5cc | 990 | } else return; |
1283eee5 | 991 | |
0a6d8768 | 992 | gMC->TrackPosition(p); |
993 | for(i=0;i<3;++i) hits[i]=p[i]; | |
cc80f89e | 994 | hits[3]=1; //I'd like to have something positive here (I.Belikov) |
fe4da5cc | 995 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
996 | } | |
997 | } | |
1283eee5 | 998 | |
999 | ||
1000 |