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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 //
78134e48 115 TGeoPcon *tpc = new TGeoPcon(0.,360.,20); //20 sections
c1637e41 116 //
78134e48 117 tpc->DefineSection(0,-291.,77.,278.);
118 tpc->DefineSection(1,-270,77.,278.);
c1637e41 119 //
78134e48 120 tpc->DefineSection(2,-270.,77.,278.);
121 tpc->DefineSection(3,-259.6,70.,278.);
c1637e41 122 //
78134e48 123 tpc->DefineSection(4,-259.6,68.1,278.);
124 tpc->DefineSection(5,-253.6,68.1,278.);
c1637e41 125 //
78134e48 126 tpc->DefineSection(6,-253.6,68.,278.);
127 tpc->DefineSection(7,-74.0,60.8,278.);
c1637e41 128 //
78134e48 129 tpc->DefineSection(8,-74.0,60.1,278.);
130 tpc->DefineSection(9,-73.3,60.1,278.);
c1637e41 131 //
78134e48 132 tpc->DefineSection(10,-73.3,56.9,278.);
133 tpc->DefineSection(11,73.3,56.9,278.);
c1637e41 134 //
78134e48 135 tpc->DefineSection(12,73.3,60.1,278.);
136 tpc->DefineSection(13,74.0,60.1,278.);
c1637e41 137 //
78134e48 138 tpc->DefineSection(14,74.0,60.8,278.);
139 tpc->DefineSection(15,253.6,65.5,278.);
140 //
141 tpc->DefineSection(16,253.6,65.6,278.);
142 tpc->DefineSection(17,259.6,65.6,278.);
143 //
144 tpc->DefineSection(18,259.6,70.0,278.);
145 tpc->DefineSection(19,291.,77.,278.);
c1637e41 146 //
147 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
148 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
149 //
150 // drift volume - sensitive volume, extended beyond the
151 // endcaps, because of the alignment
152 //
153 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
154 dvol->DefineSection(0,-260.,74.5,264.4);
155 dvol->DefineSection(1,-253.6,74.5,264.4);
156 //
157 dvol->DefineSection(2,-253.6,76.6774,258.);
158 dvol->DefineSection(3,253.6,76.6774,258.);
159 //
160 dvol->DefineSection(4,253.6,74.5,264.4);
161 dvol->DefineSection(5,260.,74.5,264.4);
162 //
163 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-1");
164 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
165 //
166 //
167 v1->AddNode(v9,1);
168 //
169 // outer insulator
170 //
171 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
172 //
173 tpco->DefineSection(0,-256.6,264.8,278.);
174 tpco->DefineSection(1,-253.6,264.8,278.);
175 //
176 tpco->DefineSection(2,-253.6,258.,278.);
177 tpco->DefineSection(3,250.6,258.,278.);
178 //
179 tpco->DefineSection(4,250.6,258.,275.5);
180 tpco->DefineSection(5,253.6,258.,275.5);
181 //
182 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
183 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
184 //
185 // outer containment vessel
186 //
187 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
188 //
189 tocv->DefineSection(0,-256.6,264.8,278.);
190 tocv->DefineSection(1,-253.6,264.8,278.);
191 //
192 tocv->DefineSection(2,-253.6,274.8124,278.);
193 tocv->DefineSection(3,247.6,274.8124,278.);
194 //
195 tocv->DefineSection(4,247.6,270.4,278.);
196 tocv->DefineSection(5,250.6,270.4,278.);
197 //
198 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
199 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
200 //
201 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
202 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
203 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
204 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
205 //
206 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
207 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
208 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
209 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
210 //
211 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
212 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
213 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
214 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
37831078 215
c1637e41 216 //-------------------------------------------------------
217 // Tpc Outer Field Cage
218 // daughters - composite (sandwich)
219 //-------------------------------------------------------
37831078 220
c1637e41 221 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
222 //
223 tofc->DefineSection(0,-253.6,258.,269.6);
224 tofc->DefineSection(1,-250.6,258.,269.6);
225 //
226 tofc->DefineSection(2,-250.6,258.,260.0676);
227 tofc->DefineSection(3,250.6,258.,260.0676);
228 //
229 tofc->DefineSection(4,250.6,258.,275.5);
230 tofc->DefineSection(5,253.6,258.,275.5);
231 //
232 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
233 //sandwich
234 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
235 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
236 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
237 //
238 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
239 //
240 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
241 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
242 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
243 //
244 // outer part - positioning
245 //
246 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
247 //
248 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
249 //
456cb019 250 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
c1637e41 251 //
252 v2->AddNode(v3,1); v2->AddNode(v4,1);
253 //
254 v1->AddNode(v2,1);
255 //--------------------------------------------------------------------
256 // Tpc Inner INsulator (CO2)
257 // the cones, the central drum and the inner f.c. sandwich with a piece
258 // of the flane will be placed in the TPC
259 //--------------------------------------------------------------------
260 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
261 //
262 tpci->DefineSection(0,-253.6,68.4,76.6774);
263 tpci->DefineSection(1,-74.0,61.2,76.6774);
264 //
265 tpci->DefineSection(2,74.0,61.2,76.6774);
266 //
267 tpci->DefineSection(3,253.6,65.9,76.6774);
268 //
269 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
270 //
271 // now the inner field cage - only part of flanges (2 copies)
272 //
273 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
274 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
275 //
276 //---------------------------------------------------------
277 // Tpc Inner Containment vessel - Muon side
278 //---------------------------------------------------------
279 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
280 //
281 tcms->DefineSection(0,-259.1,68.1,74.2);
282 tcms->DefineSection(1,-253.6,68.1,74.2);
283 //
284 tcms->DefineSection(2,-253.6,68.1,68.4);
285 tcms->DefineSection(3,-74.0,60.9,61.2);
286 //
287 tcms->DefineSection(4,-74.0,60.1,61.2);
288 tcms->DefineSection(5,-73.3,60.1,61.2);
289 //
290 tcms->DefineSection(6,-73.3,56.9,61.2);
291 tcms->DefineSection(7,-73.0,56.9,61.2);
292 //
293 tcms->DefineSection(8,-73.0,56.9,58.8);
294 tcms->DefineSection(9,-71.3,56.9,58.8);
295 //
296 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
297 //-----------------------------------------------
298 // inner containment vessel - shaft side
299 //-----------------------------------------------
300 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
301 //
302 tcss->DefineSection(0,71.3,56.9,58.8);
303 tcss->DefineSection(1,73.0,56.9,58.8);
304 //
305 tcss->DefineSection(2,73.0,56.9,61.2);
306 tcss->DefineSection(3,73.3,56.9,61.2);
307 //
308 tcss->DefineSection(4,73.3,60.1,61.2);
309 tcss->DefineSection(5,74.0,60.1,61.2);
310 //
311 tcss->DefineSection(6,74.0,60.9,61.2);
312 tcss->DefineSection(7,253.6,65.6,65.9);
313 //
314 tcss->DefineSection(8,253.6,65.6,74.2);
315 tcss->DefineSection(9,258.1,65.6,74.2);
316 //
317 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
318 //-----------------------------------------------
319 // Inner field cage
320 // define 4 parts and make an assembly
321 //-----------------------------------------------
322 // part1 - Al - 2 copies
323 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
324 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
325 // sandwich - outermost parts - 2 copies
326 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
327 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
328 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
329 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
330 //
331 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
332 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
333 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
334 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
335 //
336 // middle parts - 2 copies
337 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
338 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
339 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
340 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
341 //
342 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
343 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
344 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
345 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
346 // central part - 1 copy
347 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
348 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
349 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
350 //
351 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
352 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
353 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
354 //
355 // inner part - positioning
356 //
357 // creating a sandwich
358 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
359 //
360 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
361 //
362 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
363 //
364 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
365 //
366 tv100->AddNode(tv10,1);
367 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
368 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
369 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
370 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
371 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
372 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
373 //
374 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
375 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
376 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
377 v9->AddNode(tv100,1);
378 //
379 // central drum
380 //
381 // flange + sandwich
382 //
383 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
384 cfl->DefineSection(0,-71.1,59.7,61.2);
385 cfl->DefineSection(1,-68.6,59.7,61.2);
386 //
387 cfl->DefineSection(2,-68.6,60.6324,61.2);
388 cfl->DefineSection(3,68.6,60.6324,61.2);
389 //
390 cfl->DefineSection(4,68.6,59.7,61.2);
391 cfl->DefineSection(5,71.1,59.7,61.2);
392 //
393 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
394 // sandwich
395 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
396 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
397 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
398 //
399 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
400 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
401 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
402 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
403 //
404 // seals for central drum 2 copies
405 //
406 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
407 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
408 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 409 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
410 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 411 //
412 // seal collars
413 TGeoPcon *se = new TGeoPcon(0.,360.,6);
414 se->DefineSection(0,-72.8,59.7,61.2);
415 se->DefineSection(1,-72.3,59.7,61.2);
416 //
417 se->DefineSection(2,-72.3,58.85,61.2);
418 se->DefineSection(3,-71.6,58.85,61.2);
419 //
420 se->DefineSection(4,-71.6,59.7,61.2);
421 se->DefineSection(5,-71.3,59.7,61.2);
422 //
423 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
424 //
425 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
426 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
427 //
428 // define reflection matrix
429 //
4fa47888 430 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 431 //
432 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
433 //
a1ec4d07 434 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
435 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 436 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
437 //
438 // central membrane - 2 rings and a mylar membrane - assembly
439 //
440 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
441 TGeoTube *oh = new TGeoTube(250.,256.,.5);
442 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
443 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
444 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
445 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
446 //
447 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
448 cm->AddNode(ihv,1);
449 cm->AddNode(ohv,1);
450 cm->AddNode(memv,1);
451 v9->AddNode(cm,1);
452 //
453 // end caps - they are make as an assembly of single segments
454 // containing both readout chambers
455 //
d899e254 456 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 457 Double_t thick=1.5; // rib
d899e254 458 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 459 //
d899e254 460 Double_t lowEdge = 86.3; // hole in the wheel
461 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 462 //
463 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
464 //
465 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
466 //
d899e254 467 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
468 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 469 //
d899e254 470 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
471 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 472 //
d899e254 473 Double_t ys = shift*TMath::Sin(openingAngle);
474 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 475 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
476 tr->RegisterYourself();
477 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
478 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
479 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
480 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
481 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
482 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
483 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
484 //
485 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
486 //
487 // readout chambers
488 //
489 // IROC first
490 //
491 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
492 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
493 // empty space
494 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
495 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
496 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
497 //bars
498 Double_t tga = (19.8328-12.3742)/39.3;
499 Double_t xmin,xmax;
500 xmin = 9.55*tga+12.3742;
501 xmax = 9.95*tga+12.3742;
502 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
503 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
504 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
505 xmin=19.4*tga+12.3742;
506 xmax=19.9*tga+12.3742;
507 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
508 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
509 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
510 xmin=29.35*tga+12.3742;
511 xmax=29.75*tga+12.3742;
512 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
513 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
514 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
515 //
516 // holes for connectors
517 //
518 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
519 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 520 TString fileName(gSystem->Getenv("ALICE_ROOT"));
521 fileName += "/TPC/conn_iroc.dat";
c1637e41 522 ifstream in;
d9e80aca 523 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 524 for(Int_t i =0;i<86;i++){
456cb019 525 Double_t y = 3.99;
c1637e41 526 Double_t x,z,ang;
527 in>>x>>z>>ang;
456cb019 528 z-=26.5;
c1637e41 529 TGeoRotation *rrr = new TGeoRotation();
530 rrr->RotateY(ang);
531 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
532 ibdv->AddNode(connv,i+1,trans);
533 }
534 in.close();
535 // "cap"
536 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
537 // "hole"
538 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
539 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
540 tr1->RegisterYourself();
541 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
542 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
543 //
544 // pad plane and wire fixations
545 //
546 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
547 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
548 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
549 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
550 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
551 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
552 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
553 //
554 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
555 //
556 iroc->AddNode(ibdv,1);
557 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
558 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
559 tga =(23.3521-14.5974)/49.65;
560 Double_t xx = 24.825*tga+14.5974-0.6;
561 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
562 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
563 //
564 // OROC
565 //
566 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
567 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
568 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
569 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
570 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
571 //horizontal bars
572 tga=(38.5084-20.2938)/99.3;
573 xmin=tga*10.2+20.2938;
574 xmax=tga*10.6+20.2938;
575 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
576 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
577 //
578 xmin=22.55*tga+20.2938;
579 xmax=24.15*tga+20.2938;
580 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
581 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
582 //
583 xmin=36.1*tga+20.2938;
584 xmax=36.5*tga+20.2938;
585 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
586 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
587 //
588 xmin=49.0*tga+20.2938;
589 xmax=50.6*tga+20.2938;
590 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
591 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
592 //
593 xmin=63.6*tga+20.2938;
594 xmax=64.0*tga+20.2938;
595 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
596 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
597 //
598 xmin=75.5*tga+20.2938;
599 xmax=77.15*tga+20.2938;
600 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
601 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
602 //
603 xmin=88.7*tga+20.2938;
604 xmax=89.1*tga+20.2938;
605 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
606 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
607 //
608 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
609 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
610 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
611 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
612 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
613 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
614 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
615 // vertical bars
616 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
617 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
618 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
619 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
620 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
621 //
622 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
623 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
624 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
625 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
626 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
627 //
628 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
629 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
630 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
631 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
632 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
633 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
634 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
635 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
636 //
637 // holes for connectors
638 //
d9e80aca 639 fileName = gSystem->Getenv("ALICE_ROOT");
640 fileName += "/TPC/conn_oroc.dat";
641 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 642 for(Int_t i =0;i<78;i++){
643 Double_t y =3.89;
644 Double_t x,z,ang;
645 Double_t x1,z1,x2,z2;
646 in>>x>>z>>ang;
647 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
648 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
649 //
650 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
651 //
652 TGeoRotation *rr = new TGeoRotation();
653 rr->RotateY(ang);
654 z1-=54.95;
655 z2-=54.95;
656 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
657 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
658 obdv->AddNode(connv,i+1,trans1);
659 obdv->AddNode(connv,i+79,trans2);
660 }
661 in.close();
662 // cap
663 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
664 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
665 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
666 tr5->RegisterYourself();
667 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
668 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
669 //
670 // pad plane and wire fixations
671 //
672 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
673 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
674 //
675 tga=(43.5239-23.3874)/114.2;
676 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
677 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
678 xx = 57.1*tga+23.3874-0.7;
679 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
680 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
681 //
682 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
683 //
684 oroc->AddNode(obdv,1);
685 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
686 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
687 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
688 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
689 //
690 // now iroc and oroc are placed into a sector...
691 //
a1ec4d07 692 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
693 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
c1637e41 694 TGeoRotation rot1("rot1",90.,90.,0.);
695 TGeoRotation rot2("rot2");
696 rot2.RotateY(10.);
697 TGeoRotation *rot = new TGeoRotation("rot");
698 *rot=rot1*rot2;
699 //
700 Double_t x0,y0;
d899e254 701 x0=110.2*TMath::Cos(openingAngle);
702 y0=110.2*TMath::Sin(openingAngle);
20527578 703 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
704 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 705 x0=188.45*TMath::Cos(openingAngle);
706 y0=188.45*TMath::Sin(openingAngle);
20527578 707 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
708 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
c1637e41 709 //
a1ec4d07 710 // A-side
c1637e41 711 //
a1ec4d07 712 secta->AddNode(ch,1);
713 secta->AddNode(iroc,1,combi1a);
714 secta->AddNode(oroc,1,combi2a);
c1637e41 715 //
a1ec4d07 716 // C-side
717 //
718 sectc->AddNode(ch,1);
719 sectc->AddNode(iroc,1,combi1c);
720 sectc->AddNode(oroc,1,combi2c);
721 //
722 // now I try to make wheels...
723 //
724 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
725 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 726 //
727 for(Int_t i =0;i<18;i++){
728 Double_t phi = (20.*i);
729 TGeoRotation *r = new TGeoRotation();
730 r->RotateZ(phi);
a1ec4d07 731 wheela->AddNode(secta,i+1,r);
732 wheelc->AddNode(sectc,i+1,r);
79575d04 733
c1637e41 734 }
735 // wheels in the drift volume!
c1637e41 736 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 737 v9->AddNode(wheela,1,combi3);
738 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 739
740 //_____________________________________________________________
741 // service support wheel
742 //_____________________________________________________________
743 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
744 sw->DefineSection(0,-4.,80.5,251.75);
745 sw->DefineSection(1,4.,80.5,251.75);
746 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
747 //
748 thick=1.;
d899e254 749 shift = thick/TMath::Sin(openingAngle);
c1637e41 750 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
751 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
752 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
753 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
754 //
74518339 755 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
756 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
757 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
758 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
759 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
760 //
761 shv->AddNode(elv,1);
762 //
763 //
d899e254 764 ys = shift*TMath::Sin(openingAngle);
765 xs = shift*TMath::Cos(openingAngle);
c1637e41 766 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
767 // cover
768 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
769 co->DefineSection(0,-0.5,77.,255.25);
770 co->DefineSection(1,0.5,77.,255.25);
771 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
772 // hole in a cover
773 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 774 shift=4./TMath::Sin(openingAngle);
c1637e41 775 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
776 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
777 //
778 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
779 //
d899e254 780 ys = shift*TMath::Sin(openingAngle);
781 xs = shift*TMath::Cos(openingAngle);
c1637e41 782 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
783 //
784 // Sector as an Assembly
785 //
786 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
787 swhs->AddNode(swv,1);
788 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
789 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
790 //
791 // SSW as an Assembly of sectors
792 //
793 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
794 for(Int_t i =0;i<18;i++){
795 Double_t phi = (20.*i);
796 TGeoRotation *r = new TGeoRotation();
797 r->RotateZ(phi);
798 swheel->AddNode(swhs,i+1,r);
799 }
800 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
801 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
802
803 // sensitive strips
804 TGeoMedium *m8 = gGeoManager->GetMedium("TPC_Ne-CO2-N-2");
805 Int_t totrows;
806 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
807 Double_t *upar;
808 upar=NULL;
809 gGeoManager->Volume("TPC_Strip","PGON",m8->GetId(),upar);
810 upar=new Double_t [10];
811 upar[0]=0.;
812 upar[1]=360.;
813 upar[2]=18.;
814 upar[3]=2.;
815 //
816 upar[4]=-124.8;
817 upar[7]=124.8;
818
819 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
820
821 upar[5]=rlow;
822 upar[6]=rlow+.01;
823 upar[8]=upar[5];
824 upar[9]=upar[6];
825 //
826 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
827 gGeoManager->Node("TPC_Strip",totrows+1,
828 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
829 //
830 // now, strips
831 //
832 //lower sectors
833 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
834 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
835 upar[5]=rlow;
836 upar[6]=rlow+.01;
837 upar[8]=upar[5];
838 upar[9]=upar[6];
839 gGeoManager->Node("TPC_Strip",i,
840 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
841 gGeoManager->Node("TPC_Strip",totrows+i,
842 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
843 }
844 //upper sectors
845 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
846 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
847 upar[5]=rlow;
848 upar[6]=rlow+.01;
849 upar[8]=upar[5];
850 upar[9]=upar[6];
851 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
852 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
853 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
854 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
855 }
856
37831078 857 //----------------------------------------------------------
c1637e41 858 // TPc Support Rods - MAKROLON
37831078 859 //----------------------------------------------------------
c1637e41 860 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
861 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 862 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
863 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
864 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
c1637e41 865 // upper and lower rods differ in length!
866 delete [] upar;
867 upar=NULL;
868 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
869 upar=new Double_t [3];
870 upar[0]=1.8;
871 upar[1]=2.2;
872
79575d04 873 //
c1637e41 874 //HV rods - makrolon + 0.58cm (diameter) Cu
ae4806ca 875 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
c1637e41 876 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
877 //
878 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
879 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
880 hvrv->AddNode(hvcv,1);
78134e48 881 //
882 // resistor rods
883 //
884 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
885 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
886 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
887 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
888 //
889 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
890 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
891 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
892 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
893 //
894 // ceramic rod with water
895 //
896 criv->AddNode(cwiv,1);
897 crov->AddNode(cwov,1);
898 //
899 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
900 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
901 //
902 // peek rod
903 //
904 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
905 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
906 //
907 // resistor rods assembly
908 //
be53328e 909 TGeoRotation *rotr = new TGeoRotation("rotr");
910 rotr->RotateZ(-21.);
78134e48 911 //
912 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
913 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
914 //
915 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
916 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
917 //
918 //
a3d2be59 919 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
920 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
921 rrin->AddNode(rriv,1);
922 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
923 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
924 rrin->AddNode(priv,1);
925 //
926 rrou->AddNode(rrov,1);
927 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
928 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
929 rrou->AddNode(prov,1);
7281dc07 930 for(Int_t i=0;i<18;i++){
c1637e41 931 Double_t angle,x,y;
932 Double_t z,r;
933 angle=TMath::DegToRad()*20.*(Double_t)i;
934 r=81.5;
935 x=r * TMath::Cos(angle);
936 y=r * TMath::Sin(angle);
937 upar[2]=126.64; //lower
938 z= 126.96;
78134e48 939 if(i==3){
be53328e 940 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
941 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 942 }
943 else {
944 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
945 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
c1637e41 946 }
78134e48 947
948 //
c1637e41 949 r=254.25;
950 x=r * TMath::Cos(angle);
951 y=r * TMath::Sin(angle);
952 upar[2]=126.54; //upper
953 z=127.06;
78134e48 954 //
955 if(i==15){
5042ab7d 956 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
957 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 958 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
959 }
960 else if(i==11){
be53328e 961 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
962 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 963 }
964 else{
965 //
966 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
967 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
968 }
c1637e41 969 gGeoManager->Node("TPC_Rod",i+36,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
970 gGeoManager->Node("TPC_Rod",i+54,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
971 }
79575d04 972
bde68ab0 973 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
974 alice->AddNode(v1,1);
37831078 975
976} // end of function
977
978//_____________________________________________________________________________
99dcb142 979void AliTPCv1::DrawDetector() const
37831078 980{
981 //
982 // Draw a shaded view of the Time Projection Chamber version 1
983 //
984
985 // Set everything unseen
986 gMC->Gsatt("*", "seen", -1);
987 //
988 // Set ALIC mother transparent
989 gMC->Gsatt("ALIC","SEEN",0);
990 //
991 // Set the volumes visible
992 gMC->Gsatt("TPC ","SEEN",0);
993 gMC->Gsatt("TOIN","SEEN",1);
994 gMC->Gsatt("TOIN","COLO",7);
37831078 995 gMC->Gsatt("TOCV","SEEN",1);
996 gMC->Gsatt("TOCV","COLO",4);
997 gMC->Gsatt("TSA1","SEEN",0);
998 gMC->Gsatt("TSA2","SEEN",0);
999 gMC->Gsatt("TSA3","SEEN",0);
79575d04 1000 gMC->Gsatt("TSA4","SEEN",0);
1001 gMC->Gsatt("TSA5","SEEN",0);
37831078 1002 gMC->Gsatt("TOFC","SEEN",1);
1003 gMC->Gsatt("TOFC","COLO",4);
37831078 1004 gMC->Gsatt("TSA6","SEEN",0);
1005 gMC->Gsatt("TSA7","SEEN",0);
79575d04 1006 gMC->Gsatt("TSA8","SEEN",0);
37831078 1007 gMC->Gsatt("TIIN","SEEN",1);
79575d04 1008 gMC->Gsatt("TIIN","COLO",7);
1009 gMC->Gsatt("TII1","SEEN",0);
1010 gMC->Gsatt("TIFC","SEEN",1);
1011 gMC->Gsatt("TIFC","COLO",4);
1012 gMC->Gsatt("TSA9","SEEN",0);
37831078 1013 gMC->Gsatt("TS10","SEEN",0);
1014 gMC->Gsatt("TS11","SEEN",0);
1015 gMC->Gsatt("TS12","SEEN",0);
37831078 1016 gMC->Gsatt("TS13","SEEN",0);
1017 gMC->Gsatt("TS14","SEEN",0);
79575d04 1018 gMC->Gsatt("TICC","SEEN",0);
1019 gMC->Gsatt("TICM","SEEN",0);
37831078 1020 gMC->Gsatt("TS15","SEEN",0);
1021 gMC->Gsatt("TS16","SEEN",0);
37831078 1022 gMC->Gsatt("TS17","SEEN",0);
79575d04 1023 gMC->Gsatt("TS18","SEEN",0);
1024 gMC->Gsatt("TS19","SEEN",0);
1025 gMC->Gsatt("TPJ1","SEEN",0);
1026 gMC->Gsatt("TPJ2","SEEN",0);
1027 gMC->Gsatt("TICS","SEEN",0);
1028 gMC->Gsatt("TDGN","SEEN",0);
37831078 1029 gMC->Gsatt("TIRC","SEEN",0);
1030 gMC->Gsatt("TIC1","SEEN",1);
1031 gMC->Gsatt("TIPP","SEEN",0);
1032 gMC->Gsatt("TIC3","SEEN",0);
1033 gMC->Gsatt("TRCE","SEEN",0);
1034 gMC->Gsatt("TPSC","SEEN",0);
79575d04 1035 gMC->Gsatt("TPCC","SEEN",0);
37831078 1036 gMC->Gsatt("TORC","SEEN",0);
1037 gMC->Gsatt("TOPP","SEEN",0);
1038 gMC->Gsatt("TOC3","SEEN",0);
1039 gMC->Gsatt("TOC1","SEEN",1);
1040 gMC->Gsatt("TSSW","SEEN",1);
1041 gMC->Gsatt("TSWC","SEEN",1);
37831078 1042 gMC->Gsatt("TSSW","COLO",3);
1043 gMC->Gsatt("TSWC","COLO",3);
1044 gMC->Gsatt("TSCE","COLO",6);
79575d04 1045 gMC->Gsatt("TSCE","SEEN",1);
37831078 1046 gMC->Gsatt("TWES","SEEN",0);
1047 gMC->Gsatt("TSWB","SEEN",0);
1048 gMC->Gsatt("TPEL","SEEN",0);
1049 gMC->Gsatt("TPMW","SEEN",1);
37831078 1050 gMC->Gsatt("TESR","SEEN",1);
1051 gMC->Gsatt("TPMW","COLO",12);
37831078 1052 gMC->Gsatt("TIC1","COLO",5);
79575d04 1053 gMC->Gsatt("TOC1","COLO",5);
37831078 1054 gMC->Gsatt("TESB","SEEN",0);
37831078 1055 gMC->Gsatt("THVM","SEEN",1);
1056 gMC->Gsatt("THVM","COLO",11);
79575d04 1057 gMC->Gsatt("THVH","SEEN",0);
1058 gMC->Gsatt("TPSR","SEEN",0);
37831078 1059 gMC->Gsatt("THVL","SEEN",0);
79575d04 1060 gMC->Gsatt("THVC","SEEN",0);
37831078 1061 gMC->Gsatt("THVE","SEEN",0);
1062 gMC->Gsatt("THVR","SEEN",0);
79575d04 1063 gMC->Gsatt("TPSS","SEEN",0);
1064 gMC->Gsatt("TPUS","SEEN",0);
1065 gMC->Gsatt("TPLS","SEEN",0);
1066
1067 //
37831078 1068 gMC->Gdopt("hide", "on");
1069 gMC->Gdopt("shad", "on");
1070 gMC->Gsatt("*", "fill", 7);
1071 gMC->SetClipBox(".");
1072 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1073 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1074 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1075 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1076 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1077 gMC->DefaultRange();
1078 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1079 gMC->Gdhead(1111, "Time Projection Chamber");
1080 gMC->Gdman(18, 4, "MAN");
1081 gMC->Gdopt("hide","off");
1082}
1083
1084//_____________________________________________________________________________
1085void AliTPCv1::CreateMaterials()
1086{
1087 //
1088 // Define materials for Time Projection Chamber
1089 //
1090 AliTPC::CreateMaterials();
1091}
1092
1093//_____________________________________________________________________________
1094void AliTPCv1::Init()
fe4da5cc 1095{
1096 //
1097 // Initialises TPC detector after it has been created
1098 //
cfce8870 1099
c1637e41 1100 fIdSens=gMC->VolId("TPC_Strip"); // sensitive strip
fe4da5cc 1101
13a8c8d7 1102 printf("%s: *** TPC version 1 initialized***\n",ClassName());
1103
1104 // printf("TPC version 1 initialized\n");
fe4da5cc 1105}
1106
1107//_____________________________________________________________________________
1108void AliTPCv1::StepManager()
1109{
1110 //
1111 // Called at every step in the Time Projection Chamber
1112 //
0a6d8768 1113 Int_t copy, id, i;
e61fd20d 1114 Float_t hits[5];
fe4da5cc 1115 Int_t vol[2];
0a6d8768 1116 TLorentzVector p;
6a905708 1117 //
1283eee5 1118
c1637e41 1119 id = gMC->CurrentVolID(copy);
1120 if(id!=fIdSens) return;
0a6d8768 1121 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
37831078 1122
1123 //
1124 // Only charged tracks entering the sensitive volume
fe4da5cc 1125 //
37831078 1126
c1637e41 1127 gMC->TrackPosition(p);
1128 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1129 //
1130
1131 //
1132 Double_t angle = TMath::ACos(p[0]/r);
1133 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1134 //
1135 // angular segment, it is not a real sector number...
1136 //
1137 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1138 fTPCParam->GetInnerAngle());
1139 // rotate to segment "0"
1140 Float_t cos,sin;
1141 fTPCParam->AdjustCosSin(sector,cos,sin);
1142 Float_t x1 = p[0]*cos + p[1]*sin;
1143 Float_t y1 = TMath::Abs(-p[0]*sin + p[1]*cos);
1144 // calculate real sector number...
1145 if (x1>fTPCParam->GetOuterRadiusLow()){
1146 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1147 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1148 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
1149 }
1150 else
1151 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1152 //
1153 // here I have a sector number
1154 //
1155 vol[0]=sector;
1156 //
1157 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1158 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1159 // row numbers are autonomous for lower and upper sectors
1160 if(vol[0] > fTPCParam->GetNInnerSector()) {
1161 vol[1] -= fTPCParam->GetNRowLow();
1162 }
1163 Double_t range = (sector<36) ? fTPCParam->GetYInner(vol[1]) :
1164 fTPCParam->GetYOuter(vol[1]);
1165 if(y1>range) return;
1166 if(vol[1] == 0){
37831078 1167
1168 // because Jouri wants to have this
1169
1170 gMC->TrackMomentum(p);
1171 hits[0]=p[0];
1172 hits[1]=p[1];
1173 hits[2]=p[2];
1174 hits[3]=0.; // this hit has no energy loss
e61fd20d 1175 // Get also the track time for pileup simulation
1176 hits[4]=gMC->TrackTime();
1177
c1637e41 1178 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
1179 }
1180 gMC->TrackPosition(p);
37831078 1181 for(i=0;i<3;++i) hits[i]=p[i];
1182 hits[3]=1; //I'd like to have something positive here (I.Belikov)
e61fd20d 1183 // Get also the track time for pileup simulation
1184 hits[4]=gMC->TrackTime();
1185
c1637e41 1186 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
37831078 1187
c1637e41 1188 }// track entering sensitive strip
37831078 1189
fe4da5cc 1190}
37831078 1191//_____________________________________________________________________________
1283eee5 1192
1193
1194