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Possibility to vary the cos(PA) cut
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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
88cb7938 16/* $Id$ */
4c039060 17
73042f01 18//
fe4da5cc 19///////////////////////////////////////////////////////////////////////////////
20// //
21// Time Projection Chamber version 1 -- detailed TPC and fast simulation //
37831078 22// //
fe4da5cc 23//Begin_Html
24/*
1439f98e 25<img src="picts/AliTPCv1Class.gif">
fe4da5cc 26*/
27//End_Html
28// //
29// //
30///////////////////////////////////////////////////////////////////////////////
31
88cb7938 32#include <Riostream.h>
c1637e41 33#include <stdlib.h>
c1637e41 34#include <TInterpreter.h>
35#include <TMath.h>
c1637e41 36#include <TVirtualMC.h>
d9e80aca 37#include <TString.h>
38#include <TSystem.h>
88cb7938 39
c1637e41 40#include "AliConst.h"
41#include "AliRun.h"
42#include "AliTPCDigitsArray.h"
43#include "AliTPCParam.h"
44#include "AliTPCParamSR.h"
45#include "AliTPCv1.h"
46#include "TLorentzVector.h"
47#include "AliMC.h"
48#include "TGeoManager.h"
49#include "TGeoVolume.h"
50#include "TGeoPcon.h"
51#include "TGeoTube.h"
52#include "TGeoPgon.h"
53#include "TGeoTrd1.h"
54#include "TGeoCompositeShape.h"
55#include "TGeoPara.h"
56ClassImp(AliTPCv1)
37831078 57
c1637e41 58//_____________________________________________________________________________
37831078 59
179c6296 60 AliTPCv1::AliTPCv1():AliTPC(),fIdSens(0)
61{
37831078 62
c1637e41 63 fHitType = 1;
37831078 64
c1637e41 65}
66
67//_____________________________________________________________________________
68AliTPCv1::AliTPCv1(const char *name, const char *title)
179c6296 69 :AliTPC(name, title),fIdSens(0)
70 {
c1637e41 71 //
72 // Standard constructor for Time Projection Chamber
73 //
37831078 74
37831078 75
c1637e41 76 if (fTPCParam)
77 fTPCParam->Write(fTPCParam->GetTitle());
79575d04 78
c1637e41 79 fHitType=1;
80}
79575d04 81
c1637e41 82//_____________________________________________________________________________
83void AliTPCv1::CreateGeometry()
84{
85 //-------------------------------------------------------------
86 // Creates geometry for Time Projection Chamber version 1
87 // Detailed geometry -- Fast simulation - space points
88 // at the pad-rows centers
89 // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
90 //-----------------------------------------------------------
37831078 91
c1637e41 92 //Begin_Html
93 /*
94 <img src="picts/AliTPC.gif">
95 */
96 //End_Html
97 //Begin_Html
98 /*
99 <img src="picts/AliTPCv1Tree.gif">
100 */
101 //End_Html
37831078 102 //----------------------------------------------------------
c1637e41 103 // This geometry is written using TGeo class
104 // Firstly the shapes are defined, and only then the volumes
105 // What is recognized by the MC are volumes
37831078 106 //----------------------------------------------------------
c1637e41 107 //
108 // tpc - this will be the mother volume
109 //
37831078 110
c1637e41 111 //
112 // here I define a volume TPC
113 // retrive the medium name with "TPC_" as a leading string
114 //
8ad31ee5 115 TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections
c1637e41 116 //
8ad31ee5 117 tpc->DefineSection(0,-289.6,77.,278.);
118 tpc->DefineSection(1,-262.1,77.,278.);
c1637e41 119 //
8ad31ee5 120 tpc->DefineSection(2,-262.1,83.1,278.);
121 tpc->DefineSection(3,-260.,83.1,278.);
c1637e41 122 //
8ad31ee5 123 tpc->DefineSection(4,-260.,70.,278.);
124 tpc->DefineSection(5,-259.6,70.,278.);
c1637e41 125 //
8ad31ee5 126 tpc->DefineSection(6,-259.6,68.1,278.);
127 tpc->DefineSection(7,-253.6,68.1,278.);
c1637e41 128 //
8ad31ee5 129 tpc->DefineSection(8,-253.6,68.,278.);
130 tpc->DefineSection(9,-74.0,60.8,278.);
c1637e41 131 //
8ad31ee5 132 tpc->DefineSection(10,-74.0,60.1,278.);
133 tpc->DefineSection(11,-73.3,60.1,278.);
c1637e41 134 //
8ad31ee5 135 tpc->DefineSection(12,-73.3,56.9,278.);
136 tpc->DefineSection(13,-68.5,56.9,278.);
c1637e41 137 //
8ad31ee5 138 tpc->DefineSection(14,-68.5,60.,278.);
139 tpc->DefineSection(15,-64.7,60.,278.);
78134e48 140 //
8ad31ee5 141 tpc->DefineSection(16,-64.7,56.9,278.);
142 tpc->DefineSection(17,73.3,56.9,278.);
78134e48 143 //
8ad31ee5 144 tpc->DefineSection(18,73.3,60.1,278.);
145 tpc->DefineSection(19,74.0,60.1,278.);
4fb9bd37 146 //
8ad31ee5 147 tpc->DefineSection(20,74.0,60.8,278.);
148 tpc->DefineSection(21,253.6,65.5,278.);
4fb9bd37 149 //
8ad31ee5 150 tpc->DefineSection(22,253.6,65.6,278.);
151 tpc->DefineSection(23,259.6,65.6,278.);
4fb9bd37 152 //
8ad31ee5 153 tpc->DefineSection(24,259.6,70.0,278.);
154 tpc->DefineSection(25,260.,70.0,278.);
4fb9bd37 155 //
8ad31ee5 156 tpc->DefineSection(26,260.,83.1,278.);
157 tpc->DefineSection(27,262.1,83.1,278.);
158 //
159 tpc->DefineSection(28,262.1,77.,278);
160 tpc->DefineSection(29,289.6,77.,278.);
161
162
c1637e41 163 //
164 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
165 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
166 //
167 // drift volume - sensitive volume, extended beyond the
168 // endcaps, because of the alignment
169 //
170 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
171 dvol->DefineSection(0,-260.,74.5,264.4);
172 dvol->DefineSection(1,-253.6,74.5,264.4);
173 //
174 dvol->DefineSection(2,-253.6,76.6774,258.);
175 dvol->DefineSection(3,253.6,76.6774,258.);
176 //
177 dvol->DefineSection(4,253.6,74.5,264.4);
178 dvol->DefineSection(5,260.,74.5,264.4);
179 //
f3d601a5 180 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-1");
c1637e41 181 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
182 //
183 //
184 v1->AddNode(v9,1);
185 //
186 // outer insulator
187 //
188 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
189 //
190 tpco->DefineSection(0,-256.6,264.8,278.);
191 tpco->DefineSection(1,-253.6,264.8,278.);
192 //
193 tpco->DefineSection(2,-253.6,258.,278.);
194 tpco->DefineSection(3,250.6,258.,278.);
195 //
196 tpco->DefineSection(4,250.6,258.,275.5);
197 tpco->DefineSection(5,253.6,258.,275.5);
198 //
199 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
200 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
201 //
202 // outer containment vessel
203 //
204 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
205 //
206 tocv->DefineSection(0,-256.6,264.8,278.);
207 tocv->DefineSection(1,-253.6,264.8,278.);
208 //
209 tocv->DefineSection(2,-253.6,274.8124,278.);
210 tocv->DefineSection(3,247.6,274.8124,278.);
211 //
212 tocv->DefineSection(4,247.6,270.4,278.);
213 tocv->DefineSection(5,250.6,270.4,278.);
214 //
215 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
216 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
217 //
218 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
219 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
220 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
221 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
222 //
223 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
224 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
225 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
226 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
227 //
228 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
229 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
230 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
231 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
37831078 232
c1637e41 233 //-------------------------------------------------------
234 // Tpc Outer Field Cage
235 // daughters - composite (sandwich)
236 //-------------------------------------------------------
37831078 237
c1637e41 238 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
239 //
240 tofc->DefineSection(0,-253.6,258.,269.6);
241 tofc->DefineSection(1,-250.6,258.,269.6);
242 //
243 tofc->DefineSection(2,-250.6,258.,260.0676);
244 tofc->DefineSection(3,250.6,258.,260.0676);
245 //
246 tofc->DefineSection(4,250.6,258.,275.5);
247 tofc->DefineSection(5,253.6,258.,275.5);
248 //
249 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
250 //sandwich
251 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
252 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
253 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
254 //
255 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
256 //
257 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
258 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
259 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
260 //
261 // outer part - positioning
262 //
263 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
264 //
265 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
266 //
456cb019 267 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
c1637e41 268 //
269 v2->AddNode(v3,1); v2->AddNode(v4,1);
270 //
271 v1->AddNode(v2,1);
272 //--------------------------------------------------------------------
273 // Tpc Inner INsulator (CO2)
274 // the cones, the central drum and the inner f.c. sandwich with a piece
275 // of the flane will be placed in the TPC
276 //--------------------------------------------------------------------
277 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
278 //
279 tpci->DefineSection(0,-253.6,68.4,76.6774);
280 tpci->DefineSection(1,-74.0,61.2,76.6774);
281 //
282 tpci->DefineSection(2,74.0,61.2,76.6774);
283 //
284 tpci->DefineSection(3,253.6,65.9,76.6774);
285 //
286 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
287 //
288 // now the inner field cage - only part of flanges (2 copies)
289 //
290 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
291 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
292 //
293 //---------------------------------------------------------
294 // Tpc Inner Containment vessel - Muon side
295 //---------------------------------------------------------
296 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
297 //
298 tcms->DefineSection(0,-259.1,68.1,74.2);
299 tcms->DefineSection(1,-253.6,68.1,74.2);
300 //
301 tcms->DefineSection(2,-253.6,68.1,68.4);
302 tcms->DefineSection(3,-74.0,60.9,61.2);
303 //
304 tcms->DefineSection(4,-74.0,60.1,61.2);
305 tcms->DefineSection(5,-73.3,60.1,61.2);
306 //
307 tcms->DefineSection(6,-73.3,56.9,61.2);
308 tcms->DefineSection(7,-73.0,56.9,61.2);
309 //
310 tcms->DefineSection(8,-73.0,56.9,58.8);
311 tcms->DefineSection(9,-71.3,56.9,58.8);
312 //
313 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
314 //-----------------------------------------------
315 // inner containment vessel - shaft side
316 //-----------------------------------------------
317 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
318 //
319 tcss->DefineSection(0,71.3,56.9,58.8);
320 tcss->DefineSection(1,73.0,56.9,58.8);
321 //
322 tcss->DefineSection(2,73.0,56.9,61.2);
323 tcss->DefineSection(3,73.3,56.9,61.2);
324 //
325 tcss->DefineSection(4,73.3,60.1,61.2);
326 tcss->DefineSection(5,74.0,60.1,61.2);
327 //
328 tcss->DefineSection(6,74.0,60.9,61.2);
329 tcss->DefineSection(7,253.6,65.6,65.9);
330 //
331 tcss->DefineSection(8,253.6,65.6,74.2);
332 tcss->DefineSection(9,258.1,65.6,74.2);
333 //
334 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
335 //-----------------------------------------------
336 // Inner field cage
337 // define 4 parts and make an assembly
338 //-----------------------------------------------
339 // part1 - Al - 2 copies
340 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
341 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
342 // sandwich - outermost parts - 2 copies
343 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
344 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
345 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
346 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
347 //
348 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
349 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
350 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
351 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
352 //
353 // middle parts - 2 copies
354 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
355 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
356 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
357 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
358 //
359 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
360 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
361 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
362 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
363 // central part - 1 copy
364 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
365 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
366 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
367 //
368 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
369 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
370 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
371 //
372 // inner part - positioning
373 //
374 // creating a sandwich
375 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
376 //
377 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
378 //
379 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
380 //
381 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
382 //
383 tv100->AddNode(tv10,1);
384 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
385 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
386 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
387 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
388 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
389 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
390 //
391 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
392 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
393 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
394 v9->AddNode(tv100,1);
395 //
396 // central drum
397 //
398 // flange + sandwich
399 //
400 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
401 cfl->DefineSection(0,-71.1,59.7,61.2);
402 cfl->DefineSection(1,-68.6,59.7,61.2);
403 //
404 cfl->DefineSection(2,-68.6,60.6324,61.2);
405 cfl->DefineSection(3,68.6,60.6324,61.2);
406 //
407 cfl->DefineSection(4,68.6,59.7,61.2);
408 cfl->DefineSection(5,71.1,59.7,61.2);
409 //
410 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
411 // sandwich
412 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
413 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
414 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
415 //
416 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
417 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
418 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
419 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
420 //
421 // seals for central drum 2 copies
422 //
423 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
424 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
425 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 426 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
427 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 428 //
429 // seal collars
430 TGeoPcon *se = new TGeoPcon(0.,360.,6);
431 se->DefineSection(0,-72.8,59.7,61.2);
432 se->DefineSection(1,-72.3,59.7,61.2);
433 //
434 se->DefineSection(2,-72.3,58.85,61.2);
435 se->DefineSection(3,-71.6,58.85,61.2);
436 //
437 se->DefineSection(4,-71.6,59.7,61.2);
438 se->DefineSection(5,-71.3,59.7,61.2);
439 //
440 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
441 //
442 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
443 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
444 //
445 // define reflection matrix
446 //
4fa47888 447 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 448 //
449 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
450 //
a1ec4d07 451 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
452 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 453 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
454 //
455 // central membrane - 2 rings and a mylar membrane - assembly
456 //
457 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
458 TGeoTube *oh = new TGeoTube(250.,256.,.5);
459 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
460 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
461 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
462 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
463 //
464 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
465 cm->AddNode(ihv,1);
466 cm->AddNode(ohv,1);
467 cm->AddNode(memv,1);
468 v9->AddNode(cm,1);
469 //
470 // end caps - they are make as an assembly of single segments
471 // containing both readout chambers
472 //
d899e254 473 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 474 Double_t thick=1.5; // rib
d899e254 475 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 476 //
d899e254 477 Double_t lowEdge = 86.3; // hole in the wheel
478 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 479 //
480 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
481 //
482 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
483 //
d899e254 484 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
485 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 486 //
d899e254 487 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
488 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 489 //
d899e254 490 Double_t ys = shift*TMath::Sin(openingAngle);
491 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 492 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
493 tr->RegisterYourself();
494 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
495 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
496 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
497 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
498 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
499 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
500 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
501 //
502 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
503 //
504 // readout chambers
505 //
506 // IROC first
507 //
508 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
509 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
510 // empty space
511 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
512 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
513 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
514 //bars
515 Double_t tga = (19.8328-12.3742)/39.3;
516 Double_t xmin,xmax;
517 xmin = 9.55*tga+12.3742;
518 xmax = 9.95*tga+12.3742;
519 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
520 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
521 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
522 xmin=19.4*tga+12.3742;
523 xmax=19.9*tga+12.3742;
524 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
525 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
526 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
527 xmin=29.35*tga+12.3742;
528 xmax=29.75*tga+12.3742;
529 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
530 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
531 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
532 //
533 // holes for connectors
534 //
535 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
536 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 537 TString fileName(gSystem->Getenv("ALICE_ROOT"));
538 fileName += "/TPC/conn_iroc.dat";
c1637e41 539 ifstream in;
d9e80aca 540 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 541 for(Int_t i =0;i<86;i++){
456cb019 542 Double_t y = 3.99;
c1637e41 543 Double_t x,z,ang;
544 in>>x>>z>>ang;
456cb019 545 z-=26.5;
c1637e41 546 TGeoRotation *rrr = new TGeoRotation();
547 rrr->RotateY(ang);
548 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
549 ibdv->AddNode(connv,i+1,trans);
550 }
551 in.close();
552 // "cap"
553 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
554 // "hole"
555 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
556 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
557 tr1->RegisterYourself();
558 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
559 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
560 //
561 // pad plane and wire fixations
562 //
563 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
564 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
565 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
566 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
567 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
568 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
569 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
570 //
571 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
572 //
573 iroc->AddNode(ibdv,1);
574 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
575 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
576 tga =(23.3521-14.5974)/49.65;
577 Double_t xx = 24.825*tga+14.5974-0.6;
578 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
579 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
580 //
581 // OROC
582 //
583 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
584 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
585 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
586 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
587 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
588 //horizontal bars
589 tga=(38.5084-20.2938)/99.3;
590 xmin=tga*10.2+20.2938;
591 xmax=tga*10.6+20.2938;
592 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
593 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
594 //
595 xmin=22.55*tga+20.2938;
596 xmax=24.15*tga+20.2938;
597 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
598 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
599 //
600 xmin=36.1*tga+20.2938;
601 xmax=36.5*tga+20.2938;
602 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
603 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
604 //
605 xmin=49.0*tga+20.2938;
606 xmax=50.6*tga+20.2938;
607 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
608 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
609 //
610 xmin=63.6*tga+20.2938;
611 xmax=64.0*tga+20.2938;
612 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
613 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
614 //
615 xmin=75.5*tga+20.2938;
616 xmax=77.15*tga+20.2938;
617 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
618 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
619 //
620 xmin=88.7*tga+20.2938;
621 xmax=89.1*tga+20.2938;
622 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
623 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
624 //
625 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
626 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
627 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
628 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
629 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
630 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
631 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
632 // vertical bars
633 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
634 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
635 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
636 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
637 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
638 //
639 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
640 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
641 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
642 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
643 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
644 //
645 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
646 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
647 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
648 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
649 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
650 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
651 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
652 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
653 //
654 // holes for connectors
655 //
d9e80aca 656 fileName = gSystem->Getenv("ALICE_ROOT");
657 fileName += "/TPC/conn_oroc.dat";
658 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 659 for(Int_t i =0;i<78;i++){
660 Double_t y =3.89;
661 Double_t x,z,ang;
662 Double_t x1,z1,x2,z2;
663 in>>x>>z>>ang;
664 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
665 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
666 //
667 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
668 //
669 TGeoRotation *rr = new TGeoRotation();
670 rr->RotateY(ang);
671 z1-=54.95;
672 z2-=54.95;
673 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
674 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
675 obdv->AddNode(connv,i+1,trans1);
676 obdv->AddNode(connv,i+79,trans2);
677 }
678 in.close();
679 // cap
680 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
681 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
682 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
683 tr5->RegisterYourself();
684 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
685 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
686 //
687 // pad plane and wire fixations
688 //
689 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
690 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
691 //
692 tga=(43.5239-23.3874)/114.2;
693 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
694 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
695 xx = 57.1*tga+23.3874-0.7;
696 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
697 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
698 //
699 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
700 //
701 oroc->AddNode(obdv,1);
702 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
703 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
704 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
705 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
706 //
707 // now iroc and oroc are placed into a sector...
708 //
a1ec4d07 709 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
710 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
c1637e41 711 TGeoRotation rot1("rot1",90.,90.,0.);
712 TGeoRotation rot2("rot2");
713 rot2.RotateY(10.);
714 TGeoRotation *rot = new TGeoRotation("rot");
715 *rot=rot1*rot2;
716 //
717 Double_t x0,y0;
d899e254 718 x0=110.2*TMath::Cos(openingAngle);
719 y0=110.2*TMath::Sin(openingAngle);
20527578 720 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
721 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 722 x0=188.45*TMath::Cos(openingAngle);
723 y0=188.45*TMath::Sin(openingAngle);
20527578 724 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
725 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
c1637e41 726 //
a1ec4d07 727 // A-side
c1637e41 728 //
a1ec4d07 729 secta->AddNode(ch,1);
730 secta->AddNode(iroc,1,combi1a);
731 secta->AddNode(oroc,1,combi2a);
c1637e41 732 //
a1ec4d07 733 // C-side
734 //
735 sectc->AddNode(ch,1);
736 sectc->AddNode(iroc,1,combi1c);
737 sectc->AddNode(oroc,1,combi2c);
738 //
739 // now I try to make wheels...
740 //
741 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
742 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 743 //
744 for(Int_t i =0;i<18;i++){
745 Double_t phi = (20.*i);
746 TGeoRotation *r = new TGeoRotation();
747 r->RotateZ(phi);
a1ec4d07 748 wheela->AddNode(secta,i+1,r);
749 wheelc->AddNode(sectc,i+1,r);
79575d04 750
c1637e41 751 }
752 // wheels in the drift volume!
c1637e41 753 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 754 v9->AddNode(wheela,1,combi3);
755 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 756
757 //_____________________________________________________________
758 // service support wheel
759 //_____________________________________________________________
760 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
761 sw->DefineSection(0,-4.,80.5,251.75);
762 sw->DefineSection(1,4.,80.5,251.75);
763 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
764 //
765 thick=1.;
d899e254 766 shift = thick/TMath::Sin(openingAngle);
c1637e41 767 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
768 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
769 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
770 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
771 //
74518339 772 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
773 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
774 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
775 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
776 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
777 //
778 shv->AddNode(elv,1);
779 //
780 //
d899e254 781 ys = shift*TMath::Sin(openingAngle);
782 xs = shift*TMath::Cos(openingAngle);
c1637e41 783 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
784 // cover
785 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
786 co->DefineSection(0,-0.5,77.,255.25);
787 co->DefineSection(1,0.5,77.,255.25);
788 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
789 // hole in a cover
790 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 791 shift=4./TMath::Sin(openingAngle);
c1637e41 792 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
793 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
794 //
795 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
796 //
d899e254 797 ys = shift*TMath::Sin(openingAngle);
798 xs = shift*TMath::Cos(openingAngle);
c1637e41 799 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
800 //
801 // Sector as an Assembly
802 //
803 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
804 swhs->AddNode(swv,1);
805 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
806 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
807 //
808 // SSW as an Assembly of sectors
809 //
810 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
811 for(Int_t i =0;i<18;i++){
812 Double_t phi = (20.*i);
813 TGeoRotation *r = new TGeoRotation();
814 r->RotateZ(phi);
815 swheel->AddNode(swhs,i+1,r);
816 }
817 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
818 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
819
820 // sensitive strips
f3d601a5 821 TGeoMedium *m8 = gGeoManager->GetMedium("TPC_Ne-CO2-2");
c1637e41 822 Int_t totrows;
823 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
824 Double_t *upar;
825 upar=NULL;
826 gGeoManager->Volume("TPC_Strip","PGON",m8->GetId(),upar);
827 upar=new Double_t [10];
828 upar[0]=0.;
829 upar[1]=360.;
830 upar[2]=18.;
831 upar[3]=2.;
832 //
833 upar[4]=-124.8;
834 upar[7]=124.8;
835
836 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
837
838 upar[5]=rlow;
839 upar[6]=rlow+.01;
840 upar[8]=upar[5];
841 upar[9]=upar[6];
842 //
843 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
844 gGeoManager->Node("TPC_Strip",totrows+1,
845 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
846 //
847 // now, strips
848 //
849 //lower sectors
850 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
851 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
852 upar[5]=rlow;
853 upar[6]=rlow+.01;
854 upar[8]=upar[5];
855 upar[9]=upar[6];
856 gGeoManager->Node("TPC_Strip",i,
857 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
858 gGeoManager->Node("TPC_Strip",totrows+i,
859 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
860 }
861 //upper sectors
862 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
863 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
864 upar[5]=rlow;
865 upar[6]=rlow+.01;
866 upar[8]=upar[5];
867 upar[9]=upar[6];
868 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
869 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
870 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
871 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
872 }
873
37831078 874 //----------------------------------------------------------
c1637e41 875 // TPc Support Rods - MAKROLON
37831078 876 //----------------------------------------------------------
c1637e41 877 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
878 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 879 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
880 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
881 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
c1637e41 882 // upper and lower rods differ in length!
883 delete [] upar;
884 upar=NULL;
885 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
886 upar=new Double_t [3];
887 upar[0]=1.8;
888 upar[1]=2.2;
889
79575d04 890 //
c1637e41 891 //HV rods - makrolon + 0.58cm (diameter) Cu
ae4806ca 892 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
c1637e41 893 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
894 //
895 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
896 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
897 hvrv->AddNode(hvcv,1);
78134e48 898 //
899 // resistor rods
900 //
901 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
902 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
903 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
904 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
905 //
906 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
907 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
908 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
909 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
910 //
911 // ceramic rod with water
912 //
913 criv->AddNode(cwiv,1);
914 crov->AddNode(cwov,1);
915 //
916 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
917 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
918 //
919 // peek rod
920 //
921 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
922 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
923 //
924 // resistor rods assembly
925 //
be53328e 926 TGeoRotation *rotr = new TGeoRotation("rotr");
927 rotr->RotateZ(-21.);
78134e48 928 //
929 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
930 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
931 //
932 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
933 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
934 //
935 //
a3d2be59 936 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
937 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
938 rrin->AddNode(rriv,1);
939 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
940 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
941 rrin->AddNode(priv,1);
942 //
943 rrou->AddNode(rrov,1);
944 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
945 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
946 rrou->AddNode(prov,1);
7281dc07 947 for(Int_t i=0;i<18;i++){
c1637e41 948 Double_t angle,x,y;
949 Double_t z,r;
950 angle=TMath::DegToRad()*20.*(Double_t)i;
951 r=81.5;
952 x=r * TMath::Cos(angle);
953 y=r * TMath::Sin(angle);
954 upar[2]=126.64; //lower
955 z= 126.96;
78134e48 956 if(i==3){
be53328e 957 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
958 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 959 }
960 else {
961 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
962 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
c1637e41 963 }
78134e48 964
965 //
c1637e41 966 r=254.25;
967 x=r * TMath::Cos(angle);
968 y=r * TMath::Sin(angle);
969 upar[2]=126.54; //upper
970 z=127.06;
78134e48 971 //
972 if(i==15){
5042ab7d 973 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
974 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 975 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
976 }
977 else if(i==11){
be53328e 978 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
979 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 980 }
981 else{
982 //
983 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
984 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
985 }
c1637e41 986 gGeoManager->Node("TPC_Rod",i+36,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
987 gGeoManager->Node("TPC_Rod",i+54,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
988 }
79575d04 989
bde68ab0 990 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
991 alice->AddNode(v1,1);
37831078 992
993} // end of function
994
37831078 995
996//_____________________________________________________________________________
997void AliTPCv1::CreateMaterials()
998{
999 //
1000 // Define materials for Time Projection Chamber
1001 //
1002 AliTPC::CreateMaterials();
1003}
1004
1005//_____________________________________________________________________________
1006void AliTPCv1::Init()
fe4da5cc 1007{
1008 //
1009 // Initialises TPC detector after it has been created
1010 //
cfce8870 1011
c1637e41 1012 fIdSens=gMC->VolId("TPC_Strip"); // sensitive strip
fe4da5cc 1013
13a8c8d7 1014 printf("%s: *** TPC version 1 initialized***\n",ClassName());
1015
1016 // printf("TPC version 1 initialized\n");
fe4da5cc 1017}
1018
1019//_____________________________________________________________________________
1020void AliTPCv1::StepManager()
1021{
1022 //
1023 // Called at every step in the Time Projection Chamber
1024 //
0a6d8768 1025 Int_t copy, id, i;
e61fd20d 1026 Float_t hits[5];
fe4da5cc 1027 Int_t vol[2];
0a6d8768 1028 TLorentzVector p;
6a905708 1029 //
1283eee5 1030
c1637e41 1031 id = gMC->CurrentVolID(copy);
1032 if(id!=fIdSens) return;
0a6d8768 1033 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
37831078 1034
1035 //
1036 // Only charged tracks entering the sensitive volume
fe4da5cc 1037 //
37831078 1038
c1637e41 1039 gMC->TrackPosition(p);
1040 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1041 //
1042
1043 //
1044 Double_t angle = TMath::ACos(p[0]/r);
1045 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1046 //
1047 // angular segment, it is not a real sector number...
1048 //
1049 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1050 fTPCParam->GetInnerAngle());
1051 // rotate to segment "0"
1052 Float_t cos,sin;
1053 fTPCParam->AdjustCosSin(sector,cos,sin);
1054 Float_t x1 = p[0]*cos + p[1]*sin;
1055 Float_t y1 = TMath::Abs(-p[0]*sin + p[1]*cos);
1056 // calculate real sector number...
1057 if (x1>fTPCParam->GetOuterRadiusLow()){
1058 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1059 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1060 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
1061 }
1062 else
1063 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1064 //
1065 // here I have a sector number
1066 //
1067 vol[0]=sector;
1068 //
1069 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1070 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1071 // row numbers are autonomous for lower and upper sectors
1072 if(vol[0] > fTPCParam->GetNInnerSector()) {
1073 vol[1] -= fTPCParam->GetNRowLow();
1074 }
1075 Double_t range = (sector<36) ? fTPCParam->GetYInner(vol[1]) :
1076 fTPCParam->GetYOuter(vol[1]);
1077 if(y1>range) return;
1078 if(vol[1] == 0){
37831078 1079
1080 // because Jouri wants to have this
1081
1082 gMC->TrackMomentum(p);
1083 hits[0]=p[0];
1084 hits[1]=p[1];
1085 hits[2]=p[2];
1086 hits[3]=0.; // this hit has no energy loss
e61fd20d 1087 // Get also the track time for pileup simulation
1088 hits[4]=gMC->TrackTime();
1089
c1637e41 1090 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
1091 }
1092 gMC->TrackPosition(p);
37831078 1093 for(i=0;i<3;++i) hits[i]=p[i];
1094 hits[3]=1; //I'd like to have something positive here (I.Belikov)
e61fd20d 1095 // Get also the track time for pileup simulation
1096 hits[4]=gMC->TrackTime();
1097
c1637e41 1098 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
37831078 1099
c1637e41 1100 }// track entering sensitive strip
37831078 1101
fe4da5cc 1102}
37831078 1103//_____________________________________________________________________________
1283eee5 1104
1105
1106