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New version from M.Kowalski
[u/mrichter/AliRoot.git] / TPC / AliTPCv1.cxx
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fe4da5cc 1///////////////////////////////////////////////////////////////////////////////
2// //
3// Time Projection Chamber version 1 -- detailed TPC and fast simulation //
4// //
5//Begin_Html
6/*
1439f98e 7<img src="picts/AliTPCv1Class.gif">
fe4da5cc 8*/
9//End_Html
10// //
11// //
12///////////////////////////////////////////////////////////////////////////////
13
14#include <TMath.h>
15#include <TGeometry.h>
16#include <TNode.h>
17#include <TBRIK.h>
18#include <TTUBE.h>
19#include "AliTPCv1.h"
20#include "AliRun.h"
21#include <iostream.h>
22#include <fstream.h>
23
24#include "AliMC.h"
25#include "AliConst.h"
26
8c555625 27#include "AliTPCParam.h"
28#include "AliTPCD.h"
29
fe4da5cc 30ClassImp(AliTPCv1)
31
32//_____________________________________________________________________________
33AliTPCv1::AliTPCv1(const char *name, const char *title)
34 :AliTPC(name, title) {
35 //
36 // Standard constructor for Time Projection Chamber
37 //
38 fIdSens1=fIdSens2=0;
39}
40
41//_____________________________________________________________________________
42void AliTPCv1::CreateGeometry()
43{
44 //
45 // Creates geometry for Time Projection Chamber version 1
46 // Detailed geometry -- Fast simulation
47 // Origin M.Kowalski
48 //
49 //Begin_Html
50 /*
1439f98e 51 <img src="picts/AliTPCv1.gif">
fe4da5cc 52 */
53 //End_Html
54 //Begin_Html
55 /*
1439f98e 56 <img src="picts/AliTPCv1Tree.gif">
fe4da5cc 57 */
58 //End_Html
59
1283eee5 60 AliTPCParam * fTPCParam = &(fDigParam->GetParam());
8c555625 61
1283eee5 62 Int_t *idtmed = fIdtmed->GetArray();
8c555625 63
1283eee5 64 Float_t dm[21];
fe4da5cc 65 Int_t idrotm[100];
1283eee5 66
67 Int_t nRotMat = 0;
68
69
fe4da5cc 70 // ----------------------------------------------------
1283eee5 71 // FIELD CAGE WITH ENDCAPS - G10
fe4da5cc 72 // THIS IS ALSO A TPC MOTHER VOLUME
73 // ----------------------------------------------------
1283eee5 74
fe4da5cc 75 dm[0] = 76.;
76 dm[1] = 278.;
77 dm[2] = 275.;
1283eee5 78
79 gMC->Gsvolu("TPC ", "TUBE", idtmed[8], dm, 3);
80
81 //-----------------------------------------------------
82 // Endcap cover c-fibre 0.86% X0
83 //-----------------------------------------------------
84
85 dm[0] = 78.;
86 dm[1] = 258.;
87 dm[2] = 0.95;
88
89 gMC->Gsvolu("TPEC","TUBE",idtmed[10],dm,3);
90
91 //-----------------------------------------------------
92 // Drift gas , leave 2 cm at the outer radius
93 // and inner raddius
94 //-----------------------------------------------------
95
96 dm[0] = 78.;
97 dm[1] = 258.;
fe4da5cc 98 dm[2] = 250.;
fe4da5cc 99
1283eee5 100 gMC->Gsvolu("TGAS", "TUBE", idtmed[3], dm, 3);
101
102
103 //------------------------------------------------------
104 // membrane holder - carbon fiber
105 //------------------------------------------------------
106
107
108 gMC->Gsvolu("TPMH","TUBE",idtmed[6],dm,0);
109
110 dm[0] = 252.;
111 dm[1] = 258.;
112 dm[2] = 0.2;
113
114 gMC->Gsposp("TPMH",1,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
115
116 dm[0] = 78.;
117 dm[2] = 82.;
118 dm[2] = 0.1;
119
120 gMC->Gsposp("TPMH",2,"TGAS",0.,0.,0.,0,"ONLY",dm,3);
121
122 //----------------------------------------------------------
123 // HV membrane - 25 microns of mylar
124 //----------------------------------------------------------
125
126 dm[0] = 82.;
127 dm[1] = 252.;
128 dm[2] = 0.00125;
129
130 gMC->Gsvolu("TPHV","TUBE",idtmed[5],dm,3);
131
132 gMC->Gspos("TPHV",1,"TGAS",0.,0.,0.,0,"ONLY");
133
134 gMC->Gspos("TGAS",1,"TPC ",0.,0.,0.,0,"ONLY");
135
136 //----------------------------------------------------------
137 // "side" gas volume, the same as the drift gas
138 // the readout chambers are placed there.
139 //----------------------------------------------------------
140
141 dm[0] = 78.;
142 dm[1] = 258.;
143 dm[2] = 0.5*(275. - 250.);
144
145 gMC->Gsvolu("TPSG", "TUBE", idtmed[2], dm, 3);
146
147 Float_t z_side = dm[2]; // 1/2 of the side gas thickness
148
149 //-----------------------------------------------------------
150 // Readout chambers , 25% of X0, I use Al as the material
151 //-----------------------------------------------------------
152
153 Float_t InnerOpenAngle = fTPCParam->GetInnerAngle();
154 Float_t OuterOpenAngle = fTPCParam->GetOuterAngle();
155
156 Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift();
157 Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift();
158
159
160 Int_t nInnerSector = fTPCParam->GetNInnerSector()/2;
161 Int_t nOuterSector = fTPCParam->GetNOuterSector()/2;
162
163
164 Float_t InSecLowEdge = fTPCParam->GetInSecLowEdge();
165 Float_t InSecUpEdge = fTPCParam->GetInSecUpEdge();
166
167 Float_t OuSecLowEdge = fTPCParam->GetOuSecLowEdge();
168 Float_t OuSecUpEdge = fTPCParam->GetOuSecUpEdge();
169
170 Float_t SecThick = 2.225; // Al
171
172 Float_t edge = fTPCParam->GetEdge();
173
174 // S (Inner) sectors
175
176 dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-edge;
177 dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-edge;
178 dm[2] = 0.5*SecThick;
179 dm[3] = 0.5*(InSecUpEdge-InSecLowEdge);
180
181 Float_t xCenterS = InSecLowEdge+dm[3];
182
183 gMC->Gsvolu("TRCS", "TRD1", idtmed[0], dm, 4);
184
185 // L (Outer) sectors
186
187 dm[0] = OuSecLowEdge*TMath::Tan(0.5*OuterOpenAngle)-edge;
188 dm[1] = OuSecUpEdge*TMath::Tan(0.5*OuterOpenAngle)-edge;
189 dm[2] = 0.5*SecThick;
190 dm[3] = 0.5*(OuSecUpEdge-OuSecLowEdge);
191
192 Float_t xCenterL = OuSecLowEdge+dm[3];
193
194 gMC->Gsvolu("TRCL", "TRD1", idtmed[0], dm, 4);
195
196 Float_t z1 = -z_side + SecThick*0.5;
197
198 //------------------------------------------------------------------
199 // S sectors - "gas sectors" (TRD1)
200 //------------------------------------------------------------------
201
202 dm[0] = InSecLowEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01;
203 dm[1] = InSecUpEdge*TMath::Tan(0.5*InnerOpenAngle)-0.01;
204 dm[2] = 0.5*(250. - 0.001);
205 dm[3] = 0.5*(InSecUpEdge-InSecLowEdge);
206
207 gMC->Gsvolu("TSGA", "TRD1", idtmed[3], dm, 4); // nonsensitive
208
209 //------------------------------------------------------------------
210 // sensitive strips - "pad rows"
211 //------------------------------------------------------------------
212
213 Int_t ns;
214 Float_t r1,r2,zz;
215
216 Float_t StripThick = 0.01; // 100 microns
217 Float_t dead = fTPCParam->GetDeadZone();
218
219 gMC->Gsvolu("TSST", "TRD1", idtmed[4], dm, 0);
220
221 dm[2] = 0.5*(250. - 0.002);
222 dm[3] = 0.5 * StripThick;
223
8c555625 224
1283eee5 225 // S-sector
8c555625 226
1283eee5 227 for (ns = 0; ns < fTPCParam->GetNRowLow(); ns++) {
228
229 r1 = fTPCParam->GetPadRowRadiiLow(ns);
230 r2 = r1 + StripThick;
231 dm[0] = r1 * TMath::Tan(0.5*InnerOpenAngle) - dead;
232 dm[1] = r2 * TMath::Tan(0.5*InnerOpenAngle) - dead;
233
234 zz = -InSecLowEdge -0.5*(InSecUpEdge-InSecLowEdge);
235 zz += r1;
236 zz += dm[3];
237
238 gMC->Gsposp("TSST", ns+1, "TSGA", 0., 0., zz, 0, "ONLY", dm, 4);
239
8c555625 240
fe4da5cc 241 }
8c555625 242
1283eee5 243 //-----------------------------------------------------------------
244 // L sectors - "gas sectors" (PGON to avoid overlaps)
245 //-----------------------------------------------------------------
246
247 dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle;
248 dm[0] *= kRaddeg;
249 dm[0] = (Float_t)TMath::Nint(dm[0]);
250
251 dm[1] = OuterOpenAngle*kRaddeg;
252 dm[1] = (Float_t)TMath::Nint(dm[1]);
253
254 dm[2] = 1.;
255 dm[3] = 4.;
256
257 dm[4] = 0.002;
258 dm[5] = OuSecLowEdge;
259 dm[6] = 252.*TMath::Cos(0.5*OuterOpenAngle)-0.002;
260
261 dm[7] = dm[4]+0.2;
262 dm[8] = dm[5];
263 dm[9] = dm[6];
264
265 dm[10] = dm[7];
266 dm[11] = OuSecLowEdge;
267 dm[12] = OuSecUpEdge;
268
269 dm[13] = 250.;
270 dm[14] = dm[11];
271 dm[15] = dm[12];
272
273 gMC->Gsvolu("TLGA","PGON",idtmed[3],dm,16);
274
275 //------------------------------------------------------------------
276 // sensitive strips - "pad rows"
277 //------------------------------------------------------------------
278
279 Float_t rmax = dm[6];
280
281 // L-sectors
282
283 gMC->Gsvolu("TLST", "PGON", idtmed[4], dm, 0);
284
285 dm[0] = 360.*kDegrad - 0.5*OuterOpenAngle;
286 dm[0] *= kRaddeg;
287 dm[0] = (Float_t)TMath::Nint(dm[0]);
288
289 dm[1] = OuterOpenAngle*kRaddeg;
290 dm[1] = (Float_t)TMath::Nint(dm[1]);
291
292 dm[2] = 1.;
293 dm[3] = 2.;
294
295 dm[7] = 250.;
296
297 Float_t xx = dead/TMath::Tan(0.5*OuterOpenAngle);
298
299 for(ns=0;ns<fTPCParam->GetNRowUp();ns++){
300
301 r1 = fTPCParam->GetPadRowRadiiUp(ns)-xx;
302 r2 = r1 + StripThick;
8c555625 303
1283eee5 304 dm[5] = r1;
305 dm[6] = r2;
306
307 dm[8] = r1;
308 dm[9] = r2;
309
310 if(r2+xx < rmax){
311 dm[4] = 0.002;
312 }
313 else{
314 dm[4] = 0.202;
315 }
316
317 gMC->Gsposp("TLST",ns+1,"TLGA",xx,0.,0.,0,"ONLY",dm,10);
8c555625 318
fe4da5cc 319 }
fe4da5cc 320
1283eee5 321 //------------------------------------------------------------------
322 // Positioning of the S-sector readout chambers
323 //------------------------------------------------------------------
324
325 Float_t zs = 0.5*(250.+0.002);
326
327 Float_t theta1,theta2,theta3;
328 Float_t phi1,phi2,phi3;
329 Float_t alpha;
330 Float_t x,y;
331
332 for(ns=0;ns<nInnerSector;ns++){
333
334 phi1 = ns * InnerOpenAngle + 270.*kDegrad + InnerAngleShift;
335 phi1 *= kRaddeg; // in degrees
336
337 phi1 = (Float_t)TMath::Nint(phi1);
338
339 if (phi1 > 360.) phi1 -= 360.;
340
fe4da5cc 341 theta1 = 90.;
342 phi2 = 90.;
343 theta2 = 180.;
1283eee5 344 phi3 = ns * InnerOpenAngle + InnerAngleShift;
345 phi3 *= kRaddeg; // in degrees
346
347 phi3 = (Float_t)TMath::Nint(phi3);
348
349 if(phi3 > 360.) phi3 -= 360.;
350
fe4da5cc 351 theta3 = 90.;
1283eee5 352
353 alpha = phi3*kDegrad;
354
355 x = xCenterS * TMath::Cos(alpha);
356 y = xCenterS * TMath::Sin(alpha);
357
358 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
359
360 gMC->Gspos("TRCS", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY");
361
362 gMC->Gspos("TSGA",ns+1,"TGAS",x,y,zs,idrotm[nRotMat], "ONLY");
363 gMC->Gspos("TSGA",ns+1+nInnerSector,"TGAS",x,y,-zs,idrotm[nRotMat], "ONLY");
364
365 nRotMat++;
366
367 }
fe4da5cc 368
1283eee5 369 //-------------------------------------------------------------------
370 // Positioning of the L-sectors readout chambers
371 //-------------------------------------------------------------------
fe4da5cc 372
1283eee5 373 for(ns=0;ns<nOuterSector;ns++){
374 phi1 = ns * OuterOpenAngle + 270.*kDegrad + OuterAngleShift;
375 phi1 *= kRaddeg; // in degrees
fe4da5cc 376
1283eee5 377 phi1 = (Float_t)TMath::Nint(phi1);
fe4da5cc 378
1283eee5 379
380 if (phi1 > 360.) phi1 -= 360.;
381
fe4da5cc 382 theta1 = 90.;
383 phi2 = 90.;
384 theta2 = 180.;
1283eee5 385 phi3 = ns * OuterOpenAngle+OuterAngleShift;
386 phi3 *= kRaddeg; // in degrees
387
388 phi3 = (Float_t)TMath::Nint(phi3);
389
390
391 if(phi3 > 360.) phi3 -= 360.;
392
fe4da5cc 393 theta3 = 90.;
1283eee5 394
395 alpha = phi3*kDegrad;
396
397 x = xCenterL * TMath::Cos(alpha);
398 y = xCenterL * TMath::Sin(alpha);
399
400 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
401
402
403 gMC->Gspos("TRCL", ns+1, "TPSG", x, y, z1, idrotm[nRotMat], "ONLY");
404
405 nRotMat++;
406
fe4da5cc 407 }
fe4da5cc 408
1283eee5 409 //-------------------------------------------------------------------
410 // Positioning of the L-sectors (gas sectors)
411 //-------------------------------------------------------------------
412
413 for(ns=0;ns<nOuterSector;ns++){
414
415 phi1 = ns*OuterOpenAngle + OuterAngleShift;
416 phi1 *= kRaddeg;
417
418 phi1 = (Float_t)TMath::Nint(phi1);
419 if(phi1>360.) phi1 -= 360.;
420
421 theta1 = 90.;
422
423 phi2 = 90. + phi1;
424 if(phi2>360.) phi2 -= 360.;
425
426 theta2 = 90.;
427
428 phi3 = 0.;
429 theta3 = 0.;
430
431 alpha = phi1*kDegrad;
432
433
434 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
435
436
437 gMC->Gspos("TLGA",ns+1,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
438
439 nRotMat++;
440
441 // reflection !!
442
443 phi3 = 0.;
444 theta3 = 180.;
445
446 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
447
448 gMC->Gspos("TLGA",ns+1+nOuterSector,"TGAS" ,0.,0.,0.,idrotm[nRotMat],"ONLY");
449
450 nRotMat++;
451 }
fe4da5cc 452
1283eee5 453 Float_t z0 = z_side - 0.95;
454
455 gMC->Gspos("TPEC",1,"TPSG",0.,0.,z0,0,"ONLY");
456
fe4da5cc 457 // ==========================================================
458 // wheels
459 // ==========================================================
1283eee5 460
461 //
462 // auxilary structures
463 //
464
465
466 gMC->Gsvolu("TPWI","TUBE",idtmed[24],dm,0); // "air"
467
fe4da5cc 468 // ----------------------------------------------------------
469 // Large wheel -> positioned in the TPC
470 // ----------------------------------------------------------
1283eee5 471
472
473 z0 = 263.5; // TPC length - 1/2 spoke wheel width
474
475 dm[0] = 258.;
fe4da5cc 476 dm[1] = 278.;
477 dm[2] = 11.5;
fe4da5cc 478
1283eee5 479 gMC->Gsvolu("TPWL", "TUBE", idtmed[0], dm, 3);
480
481 dm[0] = dm[0]+2.;
482 dm[1] = 278.;
483 dm[2] = dm[2]-2.;
484
485 gMC->Gsposp("TPWI",1,"TPWL",0.,0.,0.,0,"ONLY",dm,3);
486
487 gMC->Gspos("TPWL", 1, "TPC ", 0, 0, z0, 0, "ONLY");
488 gMC->Gspos("TPWL", 2, "TPC ", 0, 0, -z0, 0, "ONLY");
489
490 //
491 // Outer vessel + CO2 HV degrader
492 //
493
494 dm[0] = 260.;
495 dm[1] = 278.;
496 dm[2] = 252.;
497
498 gMC->Gsvolu("TPCO","TUBE",idtmed[12],dm,3);
499
500 dm[0] = 275.;
fe4da5cc 501 dm[1] = 278.;
fe4da5cc 502
1283eee5 503 gMC->Gsvolu("TPOV","TUBE",idtmed[10],dm,3);
504
505 gMC->Gspos("TPOV",1,"TPCO",0.,0.,0.,0,"ONLY");
506
507
508 // G10 plugs
509
510 dm[0] = 258.;
511 dm[1] = 260.;
512 dm[2] = 1.;
513
514 gMC->Gsvolu("TPG1","TUBE",idtmed[8],dm,3);
515 gMC->Gspos("TPG1",1,"TPCO",0.,0.,251.,0,"ONLY");
516 gMC->Gspos("TPG1",2,"TPCO",0.,0.,-251.,0,"ONLY");
517
518 gMC->Gspos("TPCO",1,"TPC ",0.,0.,0.,0,"ONLY");
519
520
521 //----------------------------------------------------------
522 // Small wheel -> positioned in "side gas
523 //----------------------------------------------------------
524
525 dm[0] = 78.;
fe4da5cc 526 dm[1] = 82.;
527 dm[2] = 11.5;
1283eee5 528
529 gMC->Gsvolu("TPWS", "TUBE", idtmed[0], dm, 3);
530
531 dm[0] = 78.;
532 dm[1] = dm[1]-2;
533 dm[2] = dm[2]-2.;
534
535 gMC->Gsvolu("TPW1", "TUBE", idtmed[2], dm, 3);
fe4da5cc 536
1283eee5 537 gMC->Gspos("TPW1", 1, "TPWS", 0., 0., 0., 0, "ONLY");
538
539 z0 = 1.; // spoke wheel is shifted w.r.t. center of the "side gas"
540
541 gMC->Gspos("TPWS", 1, "TPSG", 0, 0, z0, 0, "ONLY");
542
543
544 // to avoid overlaps
545
546 dm[0] = 76.;
547 dm[1] = 78.;
548 dm[2] = 11.5;
549
550 gMC->Gsvolu("TPS1","TUBE",idtmed[0],dm,3);
551
fe4da5cc 552 dm[2] = 9.5;
1283eee5 553
554 gMC->Gsvolu("TPS2","TUBE",idtmed[24],dm,3);
555
556 gMC->Gspos("TPS2",1,"TPS1",0.,0.,0.,0,"ONLY");
557
558 z0= 263.5;
fe4da5cc 559
1283eee5 560 gMC->Gspos("TPS1",1,"TPC ",0.,0.,z0,0,"ONLY");
561 gMC->Gspos("TPS1",2,"TPC ",0.,0.,-z0,0,"ONLY");
562
563 // G10 plug
564
565 dm[0] = 76.;
566 dm[2] = 78.;
567 dm[3] = 1.;
568
569 gMC->Gsvolu("TPG2","TUBE",idtmed[8],dm,3);
570
571 z0 = 251.;
572
573 gMC->Gspos("TPG2",1,"TPC ",0.,0.,z0,0,"ONLY");
574 gMC->Gspos("TPG2",2,"TPC ",0.,0.,-z0,0,"ONLY");
575
576
577 //---------------------------------------------------------
578 // central wheel 6 (radial direction) x 4 (along z) cm2
579 //---------------------------------------------------------
580
581 dm[0] = 140.;
582 dm[1] = 146.;
fe4da5cc 583 dm[2] = 2.;
1283eee5 584
585 gMC->Gsvolu("TPWC","TUBE",idtmed[0],dm,3);
586
587 dm[0] = dm[0] + 2.;
588 dm[1] = dm[1] - 2.;
589 dm[2] = dm[2] - 1.;
590
591 gMC->Gsposp("TPWI",2,"TPWC",0.,0.,0.,0,"ONLY",dm,3);
592
593 z0 = z_side - 1.9 - 2.;
594
595 gMC->Gspos("TPWC",1,"TPSG",0.,0.,z0,0,"ONLY");
596
597 //
598
599 gMC->Gsvolu("TPSE","BOX ",idtmed[24],dm,0); // "empty" part of the spoke
600
601
602 //---------------------------------------------------------
603 // inner spokes (nSectorInner)
604 //---------------------------------------------------------
605
606 dm[0] = 0.5*(139.9-82.1);
fe4da5cc 607 dm[1] = 3.;
608 dm[2] = 2.;
1283eee5 609
610 Float_t x1 = dm[0]+82.;
611
612 gMC->Gsvolu("TPSI","BOX",idtmed[0],dm,3);
613
614 dm[1] = dm[1]-1.;
615 dm[2] = dm[2]-1.;
616
617 gMC->Gsposp("TPSE",1,"TPSI",0.,0.,0.,0,"ONLY",dm,3);
618
619 for(ns=0;ns<nInnerSector;ns++){
620
621 phi1 = 0.5*InnerOpenAngle + ns*InnerOpenAngle + InnerAngleShift;
622 theta1=90.;
623 phi1 *=kRaddeg;
624
625 phi1 = (Float_t)TMath::Nint(phi1);
626 if(phi1>360.) phi1 -= 360.;
627
628 phi2 = phi1+90.;
629 if(phi2>360.) phi2 -= 360.;
630 theta2=90.;
631 phi3=0.;
632 theta3=0.;
633
fe4da5cc 634 alpha = phi1 * kDegrad;
635 x = x1 * TMath::Cos(alpha);
1283eee5 636 y = x1 * TMath::Sin(alpha);
637
638 AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
639
640 gMC->Gspos("TPSI",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
641
642 nRotMat++;
643
fe4da5cc 644 }
1283eee5 645
646 //-------------------------------------------------------------
647 // outer spokes (nSectorOuter)
648 //-------------------------------------------------------------
649
650 dm[0] = 0.5*(257.9-146.1);
651 dm[1] = 3.;
652 dm[2] = 2.;
653
654 x1 = dm[0] + 146.;
655
656 gMC->Gsvolu("TPSO","BOX ",idtmed[0],dm,3);
657
658 dm[1] = dm[1] - 1.;
659 dm[2] = dm[2] - 1.;
660
661 gMC->Gsposp("TPSE",2,"TPSO",0.,0.,0.,0,"ONLY",dm,3);
662
663 for(ns=0;ns<nOuterSector;ns++){
664
665 phi1 = 0.5*OuterOpenAngle + ns*OuterOpenAngle + OuterAngleShift;
666 theta1=90.;
667 phi1 *=kRaddeg;
668
669 phi1 = (Float_t)TMath::Nint(phi1);
670 if(phi1>360.) phi1 -= 360.;
671
672 phi2 = phi1+90.;
673 if(phi2>360.) phi2 -= 360.;
674 theta2=90.;
675 phi3=0.;
676 theta3=0.;
677
fe4da5cc 678 alpha = phi1 * kDegrad;
1283eee5 679 x = x1 * TMath::Cos(alpha);
680 y = x1 * TMath::Sin(alpha);
681
682 AliMatrix(idrotm[nRotMat],theta1,phi1,theta2,phi2,theta3,phi3);
683
684 gMC->Gspos("TPSO",ns+1,"TPSG",x,y,z0,idrotm[nRotMat],"ONLY");
685
686 nRotMat++;
687
688 }
fe4da5cc 689
1283eee5 690
fe4da5cc 691
fe4da5cc 692 // --------------------------------------------------------
693 // put the readout chambers into the TPC
694 // --------------------------------------------------------
1283eee5 695
fe4da5cc 696 theta1 = 90.;
697 phi1 = 0.;
698 theta2 = 90.;
699 phi2 = 270.;
700 theta3 = 180.;
701 phi3 = 0.;
702
1283eee5 703 AliMatrix(idrotm[nRotMat], theta1, phi1, theta2, phi2, theta3, phi3);
fe4da5cc 704
705 z0 = z_side + 250.;
706
cfce8870 707 gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY");
1283eee5 708 gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[nRotMat], "ONLY");
fe4da5cc 709
cfce8870 710 gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY");
fe4da5cc 711
1283eee5 712 //----------------------------------------------------
713 // Inner vessel and HV degrader
714 //----------------------------------------------------
fe4da5cc 715
fe4da5cc 716 dm[0] = 0.;
717 dm[1] = 360.;
718 dm[2] = 4.;
719
720 dm[3] = -250.;
1283eee5 721 dm[4] = 74.4;
fe4da5cc 722 dm[5] = 76.;
1283eee5 723
fe4da5cc 724 dm[6] = -64.5;
725 dm[7] = 50.;
726 dm[8] = 76.;
1283eee5 727
728 dm[9] = -64.5;
fe4da5cc 729 dm[10] = 50.;
730 dm[11] = 76.;
1283eee5 731
fe4da5cc 732 dm[12] = 250.;
1283eee5 733 dm[13] = 74.4;
fe4da5cc 734 dm[14] = 76.;
1283eee5 735
736 gMC->Gsvolu("TPVD", "PCON", idtmed[12], dm, 15); // CO2
737
738 // cone parts
fe4da5cc 739
740 dm[0] = 0.;
741 dm[1] = 360.;
1283eee5 742 dm[2] = 2.;
743
744 dm[3] = 64.5;
745 dm[4] = 50.;
746 dm[5] = 51.6;
747
748 dm[6] = 250.;
749 dm[7] = 74.4;
750 dm[8] = 76.;
751
752
753 gMC->Gsvolu("TIVC","PCON",idtmed[11],dm,9); // C-fibre
754
755 gMC->Gspos("TIVC",1,"TPVD",0.,0.,0.,0,"ONLY");
756 gMC->Gspos("TIVC",2,"TPVD",0.,0.,0.,idrotm[nRotMat],"ONLY");
757
758 // barrel part
759
760 dm[0] = 50.;
761 dm[1] = 50.5;
762 dm[2] = 32.25;
763
764 gMC->Gsvolu("TIVB","TUBE",idtmed[9],dm,3);
765
766 gMC->Gspos("TIVB",1,"TPVD",0.,0.,0.,0,"ONLY");
767
768 gMC->Gspos("TPVD",1,"ALIC",0.,0.,0.,0,"ONLY");
769
fe4da5cc 770
1283eee5 771
fe4da5cc 772
1283eee5 773
fe4da5cc 774 // ---------------------------------------------------
775 // volumes ordering
776 // ---------------------------------------------------
cfce8870 777 gMC->Gsord("TGAS", 6);
778 gMC->Gsord("TPSG", 6);
779 gMC->Gsord("TSGA", 3);
8022212f 780 gMC->Gsord("TLGA", 4);
1283eee5 781
782} // end of function
783
fe4da5cc 784
785//_____________________________________________________________________________
8c555625 786void AliTPCv1::DrawDetector()
fe4da5cc 787{
788 //
789 // Draw a shaded view of the Time Projection Chamber version 1
790 //
791
fe4da5cc 792 // Set everything unseen
cfce8870 793 gMC->Gsatt("*", "seen", -1);
fe4da5cc 794 //
795 // Set ALIC mother transparent
cfce8870 796 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 797 //
798 // Set the volumes visible
cfce8870 799 gMC->Gsatt("TPC","SEEN",0);
800 gMC->Gsatt("TGAS","SEEN",0);
801 gMC->Gsatt("TPSG","SEEN",0);
802 gMC->Gsatt("TPHV","SEEN",1);
1283eee5 803 gMC->Gsatt("TPMH","SEEN",1);
804 gMC->Gsatt("TPEC","SEEN",0);
cfce8870 805 gMC->Gsatt("TRCS","SEEN",1);
806 gMC->Gsatt("TRCL","SEEN",1);
1283eee5 807 gMC->Gsatt("TPWL","SEEN",1);
808 gMC->Gsatt("TPWI","SEEN",1);
809 gMC->Gsatt("TPWS","SEEN",1);
cfce8870 810 gMC->Gsatt("TPW1","SEEN",1);
1283eee5 811 gMC->Gsatt("TPS1","SEEN",1);
812 gMC->Gsatt("TPS2","SEEN",1);
813 gMC->Gsatt("TPG1","SEEN",1);
814 gMC->Gsatt("TPG2","SEEN",1);
815 gMC->Gsatt("TPWC","SEEN",1);
816 gMC->Gsatt("TPSI","SEEN",1);
817 gMC->Gsatt("TPSO","SEEN",1);
818 gMC->Gsatt("TPCO","SEEN",1);
819 gMC->Gsatt("TPOV","SEEN",1);
cfce8870 820 gMC->Gsatt("TPVD","SEEN",1);
fe4da5cc 821 //
cfce8870 822 gMC->Gdopt("hide", "on");
823 gMC->Gdopt("shad", "on");
824 gMC->Gsatt("*", "fill", 7);
825 gMC->SetClipBox(".");
826 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
827 gMC->DefaultRange();
828 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
829 gMC->Gdhead(1111, "Time Projection Chamber");
830 gMC->Gdman(18, 4, "MAN");
831 gMC->Gdopt("hide","off");
fe4da5cc 832}
833
834//_____________________________________________________________________________
835void AliTPCv1::CreateMaterials()
836{
837 //
838 // Define materials for Time Projection Chamber
839 //
840 AliTPC::CreateMaterials();
841}
842
843//_____________________________________________________________________________
844void AliTPCv1::Init()
845{
846 //
847 // Initialises TPC detector after it has been created
848 //
cfce8870 849
1283eee5 850 fIdSens1=gMC->VolId("TLST"); // L-sector
851 fIdSens2=gMC->VolId("TSST"); // S-sector
fe4da5cc 852
853 printf("TPC version 1 initialized\n");
854}
855
856//_____________________________________________________________________________
857void AliTPCv1::StepManager()
858{
859 //
860 // Called at every step in the Time Projection Chamber
861 //
0a6d8768 862 Int_t copy, id, i;
fe4da5cc 863 Float_t hits[4];
864 Int_t vol[2];
0a6d8768 865 TLorentzVector p;
fe4da5cc 866 TClonesArray &lhits = *fHits;
cfce8870 867
1283eee5 868 AliTPCParam *fTPCParam = &(fDigParam->GetParam());
869
fe4da5cc 870 //
1283eee5 871
0a6d8768 872 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
fe4da5cc 873 //
874 // Only entering charged tracks
1283eee5 875 //
0a6d8768 876 if((id=gMC->CurrentVolID(copy))==fIdSens1) {
1283eee5 877
878 // L
879
880 vol[1]=copy-1; // row
0a6d8768 881 id=gMC->CurrentVolOffID(1,copy);
1283eee5 882 vol[0]=copy+fTPCParam->GetNInnerSector()-1; // sector
fe4da5cc 883 } else if(id==fIdSens2) {
1283eee5 884
885 // S
886
887 vol[1]=copy-1; // row
888 id=gMC->CurrentVolOffID(1,copy); // sector
889 vol[0]=copy-1;
fe4da5cc 890 } else return;
1283eee5 891
0a6d8768 892 gMC->TrackPosition(p);
893 for(i=0;i<3;++i) hits[i]=p[i];
fe4da5cc 894 hits[3]=0;
895 new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits);
896 }
897}
1283eee5 898
899
900