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Use equipment id in error dump (MinJung)
[u/mrichter/AliRoot.git] / TPC / AliTPCv2.cxx
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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 2 -- detailed TPC and slow simulation //
22// //
23//Begin_Html
24/*
1439f98e 25<img src="picts/AliTPCv2Class.gif">
fe4da5cc 26*/
27//End_Html
28// //
29// //
30///////////////////////////////////////////////////////////////////////////////
116cbefd 31
d899e254 32//#include <stdlib.h>
fe4da5cc 33
88cb7938 34#include <TLorentzVector.h>
116cbefd 35#include <TPDGCode.h>
d9e80aca 36#include <TString.h>
f77f13c8 37#include "AliLog.h"
b40afa5e 38#include "AliMathBase.h"
e6add757 39#include "AliTrackReference.h"
73042f01 40#include "AliTPCParam.h"
4ed5dced 41#include "AliTPCTrackHitsV2.h"
116cbefd 42#include "AliTPCv2.h"
cdf69b9a 43#include "AliGeomManager.h"
c1637e41 44#include "TGeoVolume.h"
45#include "TGeoPcon.h"
46#include "TGeoTube.h"
47#include "TGeoPgon.h"
48#include "TGeoTrd1.h"
49#include "TGeoCompositeShape.h"
50#include "TGeoPara.h"
1ac29fc4 51#include "TGeoPhysicalNode.h"
0f788f87 52#include "TGeoHalfSpace.h"
1ac29fc4 53
c1637e41 54ClassImp(AliTPCv2)
55
56//_____________________________________________________________________________
57AliTPCv2::AliTPCv2(const char *name, const char *title) :
e046d791 58 AliTPC(name, title),
59 fIdSens(0),
60 fIDrift(0),
61 fSecOld(0)
c1637e41 62{
63 //
64 // Standard constructor for Time Projection Chamber version 2
65 //
6a905708 66
37831078 67
c1637e41 68 SetBufferSize(128000);
79575d04 69
79575d04 70
db2fdcfb 71// if (fTPCParam)
72// fTPCParam->Write(fTPCParam->GetTitle());
c1637e41 73}
74
75//_____________________________________________________________________________
76void AliTPCv2::CreateGeometry()
77{
78 //
79 // Create the geometry of Time Projection Chamber version 2
80 //
81 //Begin_Html
82 /*
83 <img src="picts/AliTPC.gif">
84 */
85 //End_Html
86 //Begin_Html
87 /*
88 <img src="picts/AliTPCv2Tree.gif">
89 */
90 //End_Html
37831078 91
92 //----------------------------------------------------------
c1637e41 93 // This geometry is written using TGeo class
94 // Firstly the shapes are defined, and only then the volumes
95 // What is recognized by the MC are volumes
37831078 96 //----------------------------------------------------------
c1637e41 97 //
98 // tpc - this will be the mother volume
99 //
37831078 100
c1637e41 101 //
102 // here I define a volume TPC
103 // retrive the medium name with "TPC_" as a leading string
104 //
78134e48 105 TGeoPcon *tpc = new TGeoPcon(0.,360.,20); //20 sections
c1637e41 106 //
78134e48 107 tpc->DefineSection(0,-291.,77.,278.);
108 tpc->DefineSection(1,-270,77.,278.);
c1637e41 109 //
78134e48 110 tpc->DefineSection(2,-270.,77.,278.);
111 tpc->DefineSection(3,-259.6,70.,278.);
c1637e41 112 //
78134e48 113 tpc->DefineSection(4,-259.6,68.1,278.);
114 tpc->DefineSection(5,-253.6,68.1,278.);
c1637e41 115 //
78134e48 116 tpc->DefineSection(6,-253.6,68.,278.);
117 tpc->DefineSection(7,-74.0,60.8,278.);
c1637e41 118 //
78134e48 119 tpc->DefineSection(8,-74.0,60.1,278.);
120 tpc->DefineSection(9,-73.3,60.1,278.);
c1637e41 121 //
78134e48 122 tpc->DefineSection(10,-73.3,56.9,278.);
123 tpc->DefineSection(11,73.3,56.9,278.);
c1637e41 124 //
78134e48 125 tpc->DefineSection(12,73.3,60.1,278.);
126 tpc->DefineSection(13,74.0,60.1,278.);
c1637e41 127 //
78134e48 128 tpc->DefineSection(14,74.0,60.8,278.);
129 tpc->DefineSection(15,253.6,65.5,278.);
130 //
131 tpc->DefineSection(16,253.6,65.6,278.);
132 tpc->DefineSection(17,259.6,65.6,278.);
133 //
134 tpc->DefineSection(18,259.6,70.0,278.);
135 tpc->DefineSection(19,291.,77.,278.);
c1637e41 136 //
137 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
138 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
139 //
140 // drift volume - sensitive volume, extended beyond the
141 // endcaps, because of the alignment
142 //
143 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
144 dvol->DefineSection(0,-260.,74.5,264.4);
145 dvol->DefineSection(1,-253.6,74.5,264.4);
146 //
147 dvol->DefineSection(2,-253.6,76.6774,258.);
148 dvol->DefineSection(3,253.6,76.6774,258.);
149 //
150 dvol->DefineSection(4,253.6,74.5,264.4);
151 dvol->DefineSection(5,260.,74.5,264.4);
152 //
153 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-2");
154 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
155 //
156 v1->AddNode(v9,1);
157 //
158 // outer insulator
159 //
160 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
161 //
162 tpco->DefineSection(0,-256.6,264.8,278.);
163 tpco->DefineSection(1,-253.6,264.8,278.);
164 //
165 tpco->DefineSection(2,-253.6,258.,278.);
166 tpco->DefineSection(3,250.6,258.,278.);
167 //
168 tpco->DefineSection(4,250.6,258.,275.5);
169 tpco->DefineSection(5,253.6,258.,275.5);
170 //
171 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
172 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
173 //
174 // outer containment vessel
175 //
176 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
177 //
178 tocv->DefineSection(0,-256.6,264.8,278.);
179 tocv->DefineSection(1,-253.6,264.8,278.);
180 //
181 tocv->DefineSection(2,-253.6,274.8124,278.);
182 tocv->DefineSection(3,247.6,274.8124,278.);
183 //
184 tocv->DefineSection(4,247.6,270.4,278.);
185 tocv->DefineSection(5,250.6,270.4,278.);
186 //
187 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
188 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
189 //
190 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
191 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
192 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
193 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
194 //
195 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
196 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
197 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
198 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
199 //
200 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
201 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
202 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
203 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
204 //-------------------------------------------------------
205 // Tpc Outer Field Cage
206 // daughters - composite (sandwich)
207 //-------------------------------------------------------
37831078 208
c1637e41 209 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
210 //
211 tofc->DefineSection(0,-253.6,258.,269.6);
212 tofc->DefineSection(1,-250.6,258.,269.6);
213 //
214 tofc->DefineSection(2,-250.6,258.,260.0676);
215 tofc->DefineSection(3,250.6,258.,260.0676);
216 //
217 tofc->DefineSection(4,250.6,258.,275.5);
218 tofc->DefineSection(5,253.6,258.,275.5);
219 //
220 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
221 //sandwich
222 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
223 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
224 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
225 //
226 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
227 //
228 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
229 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
230 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
231 //
232 // outer part - positioning
233 //
234 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
235 //
236 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
237 //
456cb019 238 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
c1637e41 239 //
240 v2->AddNode(v3,1); v2->AddNode(v4,1);
241 //
242 v1->AddNode(v2,1);
243 //--------------------------------------------------------------------
244 // Tpc Inner INsulator (CO2)
245 // the cones, the central drum and the inner f.c. sandwich with a piece
246 // of the flane will be placed in the TPC
247 //--------------------------------------------------------------------
248 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
249 //
250 tpci->DefineSection(0,-253.6,68.4,76.6774);
251 tpci->DefineSection(1,-74.0,61.2,76.6774);
252 //
253 tpci->DefineSection(2,74.0,61.2,76.6774);
254 //
255 tpci->DefineSection(3,253.6,65.9,76.6774);
256 //
257 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
258 //
259 // now the inner field cage - only part of flanges (2 copies)
260 //
261 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
262 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
263 //
264 //---------------------------------------------------------
265 // Tpc Inner Containment vessel - Muon side
266 //---------------------------------------------------------
267 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
268 //
269 tcms->DefineSection(0,-259.1,68.1,74.2);
270 tcms->DefineSection(1,-253.6,68.1,74.2);
271 //
272 tcms->DefineSection(2,-253.6,68.1,68.4);
273 tcms->DefineSection(3,-74.0,60.9,61.2);
274 //
275 tcms->DefineSection(4,-74.0,60.1,61.2);
276 tcms->DefineSection(5,-73.3,60.1,61.2);
277 //
278 tcms->DefineSection(6,-73.3,56.9,61.2);
279 tcms->DefineSection(7,-73.0,56.9,61.2);
280 //
281 tcms->DefineSection(8,-73.0,56.9,58.8);
282 tcms->DefineSection(9,-71.3,56.9,58.8);
283 //
284 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
285 //-----------------------------------------------
286 // inner containment vessel - shaft side
287 //-----------------------------------------------
288 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
289 //
290 tcss->DefineSection(0,71.3,56.9,58.8);
291 tcss->DefineSection(1,73.0,56.9,58.8);
292 //
293 tcss->DefineSection(2,73.0,56.9,61.2);
294 tcss->DefineSection(3,73.3,56.9,61.2);
295 //
296 tcss->DefineSection(4,73.3,60.1,61.2);
297 tcss->DefineSection(5,74.0,60.1,61.2);
298 //
299 tcss->DefineSection(6,74.0,60.9,61.2);
300 tcss->DefineSection(7,253.6,65.6,65.9);
301 //
302 tcss->DefineSection(8,253.6,65.6,74.2);
303 tcss->DefineSection(9,258.1,65.6,74.2);
304 //
305 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
306 //-----------------------------------------------
307 // Inner field cage
308 // define 4 parts and make an assembly
309 //-----------------------------------------------
310 // part1 - Al - 2 copies
311 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
312 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
313 // sandwich - outermost parts - 2 copies
314 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
315 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
316 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
317 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
318 //
319 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
320 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
321 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
322 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
323 //
324 // middle parts - 2 copies
325 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
326 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
327 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
328 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
329 //
330 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
331 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
332 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
333 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
334 // central part - 1 copy
efbf94c5 335 TGeoTube *t10 = new TGeoTube(76.6774,78.785,93.75); // tedlar 38 microns
336 TGeoTube *t11 = new TGeoTube(76.6812,78.7812,93.75); // prepreg3 300 microns
337 TGeoTube *t12 = new TGeoTube(76.7312,78.7312,93.75); // nomex 2 cm
c1637e41 338 //
339 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
340 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
341 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
342 //
343 // inner part - positioning
344 //
345 // creating a sandwich
346 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
347 //
348 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
349 //
350 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
351 //
352 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
353 //
354 tv100->AddNode(tv10,1);
355 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
356 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
357 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
358 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
359 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
360 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
361 //
362 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
363 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
364 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
365 v9->AddNode(tv100,1);
366 //
367 // central drum
368 //
369 // flange + sandwich
370 //
371 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
372 cfl->DefineSection(0,-71.1,59.7,61.2);
373 cfl->DefineSection(1,-68.6,59.7,61.2);
374 //
efbf94c5 375 cfl->DefineSection(2,-68.6,60.6124,61.2);
376 cfl->DefineSection(3,68.6,60.6124,61.2);
c1637e41 377 //
378 cfl->DefineSection(4,68.6,59.7,61.2);
379 cfl->DefineSection(5,71.1,59.7,61.2);
380 //
381 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
382 // sandwich
efbf94c5 383 TGeoTube *cd1 = new TGeoTube(60.6224,61.19,71.1);
384 TGeoTube *cd2 = new TGeoTube(60.6262,61.1862,71.1);
385 TGeoTube *cd3 = new TGeoTube(60.6462,61.1662,71.1);
386 TGeoTube *cd4 = new TGeoTube(60.6562,61.1562,71.1);
c1637e41 387 //
388 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
efbf94c5 389 TGeoMedium *sm8 = gGeoManager->GetMedium("TPC_Epoxyfm");
c1637e41 390 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
391 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
efbf94c5 392 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm8); //epoxy film
393 TGeoVolume *cd4v = new TGeoVolume("TPC_CDR4",cd4,sm4); //nomex
394
c1637e41 395 //
396 // seals for central drum 2 copies
397 //
398 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
399 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
400 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
3378c058 401 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
402 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 403 //
404 // seal collars
405 TGeoPcon *se = new TGeoPcon(0.,360.,6);
406 se->DefineSection(0,-72.8,59.7,61.2);
407 se->DefineSection(1,-72.3,59.7,61.2);
408 //
409 se->DefineSection(2,-72.3,58.85,61.2);
410 se->DefineSection(3,-71.6,58.85,61.2);
411 //
412 se->DefineSection(4,-71.6,59.7,61.2);
413 se->DefineSection(5,-71.3,59.7,61.2);
414 //
415 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
416 //
417 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
418 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
419 //
420 // define reflection matrix
421 //
4fa47888 422 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 423 //
efbf94c5 424 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cd3v->AddNode(cd4v,1); cflv->AddNode(cd1v,1);
c1637e41 425 //
a1ec4d07 426 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
427 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 428 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
429 //
430 // central membrane - 2 rings and a mylar membrane - assembly
431 //
0f788f87 432 TGeoTube *ih = new TGeoTube(80.1,84.1,0.2);
ceb660a9 433 TGeoTube *oh = new TGeoTube(250.25,256.75,0.2);
434 TGeoTube *mem = new TGeoTube(84.1,250.25,0.01);
c1637e41 435 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
436 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
437 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
438 //
439 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
440 cm->AddNode(ihv,1);
441 cm->AddNode(ohv,1);
442 cm->AddNode(memv,1);
443 v9->AddNode(cm,1);
444 //
445 // end caps - they are make as an assembly of single segments
446 // containing both readout chambers
447 //
d899e254 448 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 449 Double_t thick=1.5; // rib
d899e254 450 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 451 //
d899e254 452 Double_t lowEdge = 86.3; // hole in the wheel
453 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 454 //
455 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
456 //
457 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
458 //
d899e254 459 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
460 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 461 //
d899e254 462 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
463 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 464 //
d899e254 465 Double_t ys = shift*TMath::Sin(openingAngle);
466 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 467 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
468 tr->RegisterYourself();
469 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
470 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
471 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
472 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
473 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
474 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
475 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
476 //
477 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
478 //
479 // readout chambers
480 //
481 // IROC first
482 //
483 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
484 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
485 // empty space
486 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
487 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
488 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
489 //bars
490 Double_t tga = (19.8328-12.3742)/39.3;
491 Double_t xmin,xmax;
492 xmin = 9.55*tga+12.3742;
493 xmax = 9.95*tga+12.3742;
494 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
495 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
496 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
497 xmin=19.4*tga+12.3742;
498 xmax=19.9*tga+12.3742;
499 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
500 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
501 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
502 xmin=29.35*tga+12.3742;
503 xmax=29.75*tga+12.3742;
504 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
505 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
506 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
507 //
508 // holes for connectors
509 //
510 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
511 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 512 TString fileName(gSystem->Getenv("ALICE_ROOT"));
513 fileName += "/TPC/conn_iroc.dat";
c1637e41 514 ifstream in;
d9e80aca 515 in.open(fileName.Data(), ios_base::in); // asci file
2d1d58a6 516 TGeoRotation *rrr[86];
c1637e41 517 for(Int_t i =0;i<86;i++){
456cb019 518 Double_t y = 3.99;
c1637e41 519 Double_t x,z,ang;
520 in>>x>>z>>ang;
456cb019 521 z-=26.5;
2d1d58a6 522 rrr[i]= new TGeoRotation();
523 rrr[i]->RotateY(ang);
524 ibdv->AddNode(connv,i+1,new TGeoCombiTrans(x,y,z,rrr[i]));
c1637e41 525 }
526 in.close();
527 // "cap"
528 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
529 // "hole"
530 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
531 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
532 tr1->RegisterYourself();
533 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
534 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
535 //
536 // pad plane and wire fixations
537 //
538 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
539 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
540 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
541 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
542 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
543 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
544 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
545 //
546 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
547 //
548 iroc->AddNode(ibdv,1);
549 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
550 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
551 tga =(23.3521-14.5974)/49.65;
552 Double_t xx = 24.825*tga+14.5974-0.6;
553 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
554 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
555 //
556 // OROC
557 //
558 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
559 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
560 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
561 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
562 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
563 //horizontal bars
564 tga=(38.5084-20.2938)/99.3;
565 xmin=tga*10.2+20.2938;
566 xmax=tga*10.6+20.2938;
567 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
568 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
569 //
570 xmin=22.55*tga+20.2938;
571 xmax=24.15*tga+20.2938;
572 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
573 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
574 //
575 xmin=36.1*tga+20.2938;
576 xmax=36.5*tga+20.2938;
577 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
578 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
579 //
580 xmin=49.0*tga+20.2938;
581 xmax=50.6*tga+20.2938;
582 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
583 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
584 //
585 xmin=63.6*tga+20.2938;
586 xmax=64.0*tga+20.2938;
587 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
588 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
589 //
590 xmin=75.5*tga+20.2938;
591 xmax=77.15*tga+20.2938;
592 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
593 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
594 //
595 xmin=88.7*tga+20.2938;
596 xmax=89.1*tga+20.2938;
597 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
598 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
599 //
600 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
601 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
602 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
603 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
604 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
605 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
606 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
607 // vertical bars
608 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
609 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
610 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
611 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
612 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
613 //
614 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
615 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
616 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
617 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
618 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
619 //
620 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
621 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
622 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
623 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
624 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
625 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
626 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
627 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
628 //
629 // holes for connectors
630 //
d9e80aca 631 fileName = gSystem->Getenv("ALICE_ROOT");
632 fileName += "/TPC/conn_oroc.dat";
633 in.open(fileName.Data(), ios_base::in); // asci file
2d1d58a6 634 TGeoRotation *rr[78];
c1637e41 635 for(Int_t i =0;i<78;i++){
636 Double_t y =3.89;
637 Double_t x,z,ang;
638 Double_t x1,z1,x2,z2;
639 in>>x>>z>>ang;
640 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
641 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
642 //
643 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
644 //
2d1d58a6 645 rr[i]= new TGeoRotation();
646 rr[i]->RotateY(ang);
c1637e41 647 z1-=54.95;
648 z2-=54.95;
5f174279 649 //
2d1d58a6 650 obdv->AddNode(connv,i+1,new TGeoCombiTrans(x1,y,z1,rr[i]));
651 obdv->AddNode(connv,i+79,new TGeoCombiTrans(x2,y,z2,rr[i]));
c1637e41 652 }
653 in.close();
654 // cap
655 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
656 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
657 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
658 tr5->RegisterYourself();
659 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
660 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
661 //
662 // pad plane and wire fixations
663 //
664 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
665 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
666 //
667 tga=(43.5239-23.3874)/114.2;
668 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
669 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
670 xx = 57.1*tga+23.3874-0.7;
671 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
672 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
673 //
674 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
675 //
676 oroc->AddNode(obdv,1);
677 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
678 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
679 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
680 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
681 //
682 // now iroc and oroc are placed into a sector...
683 //
a1ec4d07 684 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
685 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
c1637e41 686 TGeoRotation rot1("rot1",90.,90.,0.);
687 TGeoRotation rot2("rot2");
688 rot2.RotateY(10.);
689 TGeoRotation *rot = new TGeoRotation("rot");
690 *rot=rot1*rot2;
691 //
692 Double_t x0,y0;
d899e254 693 x0=110.2*TMath::Cos(openingAngle);
694 y0=110.2*TMath::Sin(openingAngle);
1bae4c82 695 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
696 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 697 x0=188.45*TMath::Cos(openingAngle);
698 y0=188.45*TMath::Sin(openingAngle);
1bae4c82 699 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
700 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
c1637e41 701 //
c1637e41 702 //
a1ec4d07 703 // A-side
c1637e41 704 //
a1ec4d07 705 secta->AddNode(ch,1);
706 secta->AddNode(iroc,1,combi1a);
707 secta->AddNode(oroc,1,combi2a);
708 //
709 // C-side
710 //
711 sectc->AddNode(ch,1);
712 sectc->AddNode(iroc,1,combi1c);
713 sectc->AddNode(oroc,1,combi2c);
714 //
715 // now I try to make wheels...
716 //
717 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
718 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 719 //
5f174279 720 TGeoRotation *rwh[18];
c1637e41 721 for(Int_t i =0;i<18;i++){
722 Double_t phi = (20.*i);
5f174279 723 rwh[i]=new TGeoRotation();
724 rwh[i]->RotateZ(phi);
725 wheela->AddNode(secta,i+1,rwh[i]);
726 wheelc->AddNode(sectc,i+1,rwh[i]);
79575d04 727
c1637e41 728 }
4fa47888 729 // wheels in the drift volume!
a1ec4d07 730
c1637e41 731 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 732 v9->AddNode(wheela,1,combi3);
733 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 734 //_____________________________________________________________
735 // service support wheel
736 //_____________________________________________________________
737 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
738 sw->DefineSection(0,-4.,80.5,251.75);
739 sw->DefineSection(1,4.,80.5,251.75);
740 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
741 //
742 thick=1.;
d899e254 743 shift = thick/TMath::Sin(openingAngle);
c1637e41 744 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
745 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
746 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
747 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
748 //
74518339 749 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
750 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
751 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
752 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
753 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
754 //
755 shv->AddNode(elv,1);
756 //
757 //
d899e254 758 ys = shift*TMath::Sin(openingAngle);
759 xs = shift*TMath::Cos(openingAngle);
c1637e41 760 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
761 // cover
762 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
763 co->DefineSection(0,-0.5,77.,255.25);
764 co->DefineSection(1,0.5,77.,255.25);
765 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
766 // hole in a cover
767 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 768 shift=4./TMath::Sin(openingAngle);
c1637e41 769 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
770 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
771 //
772 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
773 //
d899e254 774 ys = shift*TMath::Sin(openingAngle);
775 xs = shift*TMath::Cos(openingAngle);
c1637e41 776 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
777 //
778 // Sector as an Assembly
779 //
780 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
781 swhs->AddNode(swv,1);
782 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
783 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
784 //
785 // SSW as an Assembly of sectors
786 //
5f174279 787 TGeoRotation *rsw[18];
788 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
c1637e41 789 for(Int_t i =0;i<18;i++){
790 Double_t phi = (20.*i);
5f174279 791 rsw[i] = new TGeoRotation();
792 rsw[i]->RotateZ(phi);
793 swheel->AddNode(swhs,i+1,rsw[i]);
c1637e41 794 }
795 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
796 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
797
798 // sensitive strips - strip "0" is always set
799 // conditional
800 Int_t totrows;
801 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
802 Double_t *upar;
803 upar=NULL;
804 gGeoManager->Volume("TPC_Strip","PGON",m5->GetId(),upar);
805 upar=new Double_t [10];
806 upar[0]=0.;
807 upar[1]=360.;
808 upar[2]=18.;
809 upar[3]=2.;
810 //
811 upar[4]=-124.8;
812 upar[7]=124.8;
813
814 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
815
816 upar[5]=rlow;
817 upar[6]=rlow+.01;
818 upar[8]=upar[5];
819 upar[9]=upar[6];
820 //
821 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
822 gGeoManager->Node("TPC_Strip",totrows+1,
823 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
824 //
825 // now, strips optionally
826 //
827 if(fSens){
828 //lower sectors
829 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
830 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
831 upar[5]=rlow;
832 upar[6]=rlow+.01;
833 upar[8]=upar[5];
834 upar[9]=upar[6];
835 gGeoManager->Node("TPC_Strip",i,
836 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
837 gGeoManager->Node("TPC_Strip",totrows+i,
838 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
839 }
840 //upper sectors
841 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
842 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
843 upar[5]=rlow;
844 upar[6]=rlow+.01;
845 upar[8]=upar[5];
846 upar[9]=upar[6];
847 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
848 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
849 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
850 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
851 }
852 }//strips
37831078 853 //----------------------------------------------------------
0f788f87 854 // TPC Support Rods - MAKROLON
37831078 855 //----------------------------------------------------------
c1637e41 856 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
857 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 858 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
859 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
860 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
0f788f87 861 TGeoMedium *m13 = gGeoManager->GetMedium("TPC_Brass");
862 //
863 // tpc rod is an assembly of 10 long parts and 2 short parts
864 // connected with alu rings and plagged on both sides.
79575d04 865 //
c1637e41 866 //
0f788f87 867// tpc rod long
868//
869 TGeoPcon *rod = new TGeoPcon("rod",0.,360.,6);
870 rod->DefineSection(0,-10.43,1.92,2.08);
871 rod->DefineSection(1,-9.75,1.92,2.08);
872
873 rod->DefineSection(2,-9.75,1.8,2.2);
874 rod->DefineSection(3,9.75,1.8,2.2);
875
876 rod->DefineSection(4,9.75,1.92,2.08);
877 rod->DefineSection(5,10.43,1.92,2.08);
878 //
879 TGeoVolume *mrodl = new TGeoVolume("TPC_mrodl",rod,m6);
880 //
881 // tpc rod short
882 //
883 TGeoPcon *rod1 = new TGeoPcon("rod1",0.,360.,6);
884 rod1->DefineSection(0,-8.93,1.92,2.08);
885 rod1->DefineSection(1,-8.25,1.92,2.08);
886
887 rod1->DefineSection(2,-8.25,1.8,2.2);
888 rod1->DefineSection(3,8.25,1.8,2.2);
889
890 rod1->DefineSection(4,8.25,1.92,2.08);
891 rod1->DefineSection(5,8.93,1.92,2.08);
892 //
893 TGeoVolume *mrods = new TGeoVolume("TPC_mrods",rod1,m6);
894 //
895 // below is for the resistor rod
896 //
897 // hole for the brass connectors
898 //
899
900 new TGeoTube("hhole",0.,0.3,0.3);
901 //
902 //transformations for holes - initialy they
903 // are placed at x=0 and negative y
904 //
905 TGeoRotation *rhole = new TGeoRotation();
906 rhole->RotateX(90.);
907 TGeoCombiTrans *transf[13];
908 Char_t name[30];
909 for(Int_t i=0;i<13;i++){
910 sprintf(name,"transf%d",i);
911 transf[i]= new TGeoCombiTrans(name,0.,-2.,-9.+i*1.5,rhole);
912 transf[i]->RegisterYourself();
913 }
914 // union expression for holes
915 TString operl("hhole:transf0");
916 for (Int_t i=1;i<13;i++){
917 sprintf(name,"+hhole:transf%d",i);
918 operl.Append(name);
919 }
78134e48 920 //
0f788f87 921 TString opers("hhole:transf1");
922 for (Int_t i=2;i<12;i++){
923 sprintf(name,"+hhole:transf%d",i);
924 opers.Append(name);
925 }
926 //union of holes
927 new TGeoCompositeShape("hlv",operl.Data());
928 new TGeoCompositeShape("hsv",opers.Data());
929 //
930 TGeoCompositeShape *rodl = new TGeoCompositeShape("rodl","rod-hlv");
931 TGeoCompositeShape *rods = new TGeoCompositeShape("rods","rod1-hsv");
932 //rods - volumes - makrolon rods with holes
933 TGeoVolume *rodlv = new TGeoVolume("TPC_rodl",rodl,m6);
934 TGeoVolume *rodsv = new TGeoVolume("TPC_rods",rods,m6);
935 //brass connectors
936 //connectors
937 TGeoTube *bcon = new TGeoTube(0.,0.3,0.3);//connectors
938 TGeoVolume *bconv = new TGeoVolume("TPC_bcon",bcon,m13);
939 //
940 // hooks holding strips
941 //
942 new TGeoBBox("hk1",0.625,0.015,0.75);
943 new TGeoBBox("hk2",0.625,0.015,0.15);
944 TGeoTranslation *tr21 = new TGeoTranslation("tr21",0.,-0.03,-0.6);
945 TGeoTranslation *tr12 = new TGeoTranslation("tr12",0.,-0.03,0.6);
946 tr21->RegisterYourself();
947 tr12->RegisterYourself();
948
949 TGeoCompositeShape *hook = new TGeoCompositeShape("hook","hk1+hk2:tr21+hk2:tr12");
950 TGeoVolume *hookv = new TGeoVolume("TPC_hook",hook,m13);
951 //
952 // assembly of the short rod with connectors and hooks
953 //
954 //
955 // short rod
956 //
957 TGeoVolumeAssembly *spart = new TGeoVolumeAssembly("TPC_spart");
958 //
959 spart->AddNode( rodsv,1);
960 for(Int_t i=1;i<12;i++){
961 spart->AddNode(bconv,i,transf[i]);
962 }
963 for(Int_t i =0;i<11;i++){
ceb660a9 964 spart->AddNode(hookv,i+1,new TGeoTranslation(0.,-2.315,-7.5+i*1.5));
0f788f87 965 }
966 //
967 // long rod
968 //
969 TGeoVolumeAssembly *lpart = new TGeoVolumeAssembly("TPC_lpart");
970 //
971 lpart->AddNode( rodlv,1);
972 for(Int_t i=0;i<13;i++){
ceb660a9 973 lpart->AddNode(bconv,i+12,transf[i]);
0f788f87 974 }
975 for(Int_t i =0;i<13;i++){
ceb660a9 976 lpart->AddNode(hookv,i+12,new TGeoTranslation(0.,-2.315,-9.+i*1.5));
0f788f87 977 }
978 //
979 // alu ring
980 //
981 new TGeoTube("ring1",2.1075,2.235,0.53);
982 new TGeoTube("ring2",1.7925,1.89,0.43);
983 new TGeoTube("ring3",1.89,2.1075,0.05);
984 TGeoCompositeShape *ring = new TGeoCompositeShape("ring","ring1+ring2+ring3");
985 TGeoVolume *ringv = new TGeoVolume("TPC_ring",ring,m3);
986 //
987 // rod assembly
988 //
ceb660a9 989 TGeoVolumeAssembly *tpcrrod = new TGeoVolumeAssembly("TPC_rrod");//rrod
0f788f87 990 TGeoVolumeAssembly *tpcmrod = new TGeoVolumeAssembly("TPC_mrod");//makrolon rod
991 //long pieces
992 for(Int_t i=0;i<11;i++){
ceb660a9 993 tpcrrod->AddNode(ringv,i+1,new TGeoTranslation(0.,0.,-105.+i*21));
0f788f87 994 tpcmrod->AddNode(ringv,i+12,new TGeoTranslation(0.,0.,-105.+i*21));
995 }
996 for(Int_t i=0;i<10;i++){
ceb660a9 997 tpcrrod->AddNode(lpart,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));
0f788f87 998 tpcmrod->AddNode(mrodl,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));
999 }
78134e48 1000 //
0f788f87 1001 // short pieces
78134e48 1002 //
ceb660a9 1003 tpcrrod->AddNode(spart,1,new TGeoTranslation(0.,0.,-114.));
1004 tpcrrod->AddNode(spart,2,new TGeoTranslation(0.,0.,114.));
1005 tpcrrod->AddNode(ringv,23,new TGeoTranslation(0.,0.,-123.));
1006 tpcrrod->AddNode(ringv,24,new TGeoTranslation(0.,0.,123.));
78134e48 1007 //
0f788f87 1008 tpcmrod->AddNode(mrods,1,new TGeoTranslation(0.,0.,-114.));
1009 tpcmrod->AddNode(mrods,2,new TGeoTranslation(0.,0.,114.));
1010 tpcmrod->AddNode(ringv,25,new TGeoTranslation(0.,0.,-123.));
1011 tpcmrod->AddNode(ringv,26,new TGeoTranslation(0.,0.,123.));
1012 //
1013 // left plaque
78134e48 1014 //
0f788f87 1015 TGeoPcon *lp = new TGeoPcon(0.,360.,4);
78134e48 1016 //
0f788f87 1017 lp->DefineSection(0,-125.8,1.92,2.235);
1018 lp->DefineSection(1,-124.8,1.92,2.235);
78134e48 1019 //
0f788f87 1020 lp->DefineSection(2,-124.8,1.92,2.08);
1021 lp->DefineSection(3,-123.1,1.92,2.08);
78134e48 1022 //
0f788f87 1023 TGeoVolume *lpv1 = new TGeoVolume("TPC_lpv1",lp,m6);
1024 TGeoVolume *lpv2 = new TGeoVolume("TPC_lpv2",lp,m6);
1025 // left ring
1026 TGeoTube *lr = new TGeoTube(2.1075,2.235,0.5);
1027 TGeoVolume *lrv = new TGeoVolume("TPC_lrv",lr,m3);
78134e48 1028 //
0f788f87 1029 lpv2->AddNode(lrv,1,new TGeoTranslation(0.,0.,-125.3));
78134e48 1030 //
ceb660a9 1031 tpcrrod->AddNode(lpv2,1);
0f788f87 1032 tpcmrod->AddNode(lpv1,1);
78134e48 1033 //
0f788f87 1034 // right plaque
78134e48 1035 //
ceb660a9 1036 TGeoTube *rp = new TGeoTube(1.92,2.08,1.125);
0f788f87 1037 TGeoVolume *rpv = new TGeoVolume("TPC_rpv",rp,m6);
ceb660a9 1038 tpcrrod->AddNode(rpv,1, new TGeoTranslation(0.,0.,125.35));
0f788f87 1039 tpcmrod->AddNode(rpv,2,new TGeoTranslation(0.,0.,125.35));
78134e48 1040 //
a3d2be59 1041 //
0f788f87 1042 //HV rods - makrolon + 0.58cm (diameter) Cu
1043 TGeoTube *hvr = new TGeoTube(0.,1.465,126.7);
1044 TGeoTube *hvc = new TGeoTube(0.,0.29,126.7);
1045 //
1046 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
1047 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
1048 hvrv->AddNode(hvcv,1);
78134e48 1049 //
0f788f87 1050 //resistor rod
1051 //
ceb660a9 1052 TGeoTube *cr = new TGeoTube(0.,0.45,126.2);
1053 TGeoTube *cw = new TGeoTube(0.,0.15,126.2);
0f788f87 1054 TGeoVolume *crv = new TGeoVolume("TPC_CR",cr,m10);
ceb660a9 1055 TGeoVolume *cwv = new TGeoVolume("TPC_W",cw,m12);
0f788f87 1056 //
1057 // ceramic rod with water
1058 //
1059 crv->AddNode(cwv,1);
1060 //
1061 //peek rod
1062 //
ceb660a9 1063 TGeoTube *pr =new TGeoTube(0.2,0.35,126.2);
1064 TGeoVolume *prv = new TGeoVolume("TPC_PR",pr,m11);
0f788f87 1065 //
1066 // copper plates with connectors
1067 //
1068 new TGeoTube("tub",0.,1.7,0.025);
1069 //
1070 // half space - points on the plane and a normal vector
1071 //
1072 Double_t n[3],p[3];
1073 Double_t slope = TMath::Tan(22.*TMath::DegToRad());
1074 Double_t intp = 1.245;
1075 //
1076 Double_t b = slope*slope+1.;
1077 p[0]=intp*slope/b;
1078 p[1]=-intp/b;
1079 p[2]=0.;
1080 //
1081 n[0]=-p[0];
1082 n[1]=-p[1];
1083 n[2]=0.;
1084 Double_t norm;
1085 norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]);
1086 n[0] /= norm;
1087 n[1] /=norm;
1088 //
1089 new TGeoHalfSpace("sp1",p,n);
1090 //
1091 slope = -slope;
1092 //
1093 p[0]=intp*slope/b;
1094 p[1]=-intp/b;
1095 //
1096 n[0]=-p[0];
1097 n[1]=-p[1];
1098 norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]);
1099 n[0] /= norm;
1100 n[1] /=norm;
1101 //
1102 new TGeoHalfSpace("sp2",p,n);
1103 // holes for rods
1104 //holes
1105 new TGeoTube("h1",0.,0.5,0.025);
1106 new TGeoTube("h2",0.,0.35,0.025);
1107 //translations:
1108 TGeoTranslation *ttr11 = new TGeoTranslation("ttr11",-0.866,0.5,0.);
1109 TGeoTranslation *ttr22 = new TGeoTranslation("ttr22",0.866,0.5,0.);
1110 ttr11->RegisterYourself();
1111 ttr22->RegisterYourself();
1112 // elastic connector
1113 new TGeoBBox("elcon",0.72,0.005,0.3);
1114 TGeoRotation *crr1 = new TGeoRotation();
1115 crr1->RotateZ(-22.);
1116TGeoCombiTrans *ctr1 = new TGeoCombiTrans("ctr1",-0.36011, -1.09951,-0.325,crr1);
1117ctr1->RegisterYourself();
1118 TGeoCompositeShape *cs1 = new TGeoCompositeShape("cs1",
1119"(((((tub-h1:ttr11)-h1:ttr22)-sp1)-sp2)-h2)+elcon:ctr1");
1120 //
1121 TGeoVolume *csvv = new TGeoVolume("TPC_RR_CU",cs1,m7);
1122 //
1123 // resistor rod assembly 2 ceramic rods, peak rod, Cu plates
1124 // and resistors
1125 //
ceb660a9 1126 TGeoVolumeAssembly *rrod = new TGeoVolumeAssembly("TPC_RRIN");
0f788f87 1127 // rods
1128 rrod->AddNode(crv,1,ttr11);
1129 rrod->AddNode(crv,2,ttr22);
1130 rrod->AddNode(prv,1);
1131 //Cu plates
1132 for(Int_t i=0;i<165;i++){
1133 rrod->AddNode(csvv,i+1,new TGeoTranslation(0.,0.,-122.675+i*1.5));
1134 }
1135 //resistors
1136 TGeoTube *res = new TGeoTube(0.,0.15,0.5);
1137 TGeoVolume *resv = new TGeoVolume("TPC_RES",res,m10);
1138 TGeoVolumeAssembly *ress = new TGeoVolumeAssembly("TPC_RES_CH");
1139 ress->AddNode(resv,1,new TGeoTranslation(0.2,0.,0.));
1140 ress->AddNode(resv,2,new TGeoTranslation(-0.2,0.,0.));
1141 //
1142 TGeoRotation *crr2 = new TGeoRotation();
1143 crr2->RotateY(30.);
1144 TGeoRotation *crr3 = new TGeoRotation();
1145 crr3->RotateY(-30.);
1146 //
1147 for(Int_t i=0;i<164;i+=2){
1148 rrod->AddNode(ress,i+1, new TGeoCombiTrans(0.,1.2,-121.925+i*1.5,crr2));
1149 rrod->AddNode(ress,i+2, new TGeoCombiTrans(0.,1.2,-121.925+(i+1)*1.5,crr3));
1150 }
ceb660a9 1151
1152 tpcrrod->AddNode(rrod,1,new TGeoCombiTrans(0.,0.,0.,crr1));
0f788f87 1153
1154 //------------------------------------------------------------------
1155 TGeoRotation refl("refl",90.,0.,90.,90.,180.,0.);
1156 TGeoRotation rotrod("rotrod");
0f788f87 1157 //
2d1d58a6 1158 TGeoRotation *rotpos[2];
1159 //
1160 TGeoRotation *rotrod1[2];
0f788f87 1161
1162 //v9 - drift gas
1163
7281dc07 1164 for(Int_t i=0;i<18;i++){
c1637e41 1165 Double_t angle,x,y;
1166 Double_t z,r;
1167 angle=TMath::DegToRad()*20.*(Double_t)i;
0f788f87 1168 //inner rods
c1637e41 1169 r=81.5;
1170 x=r * TMath::Cos(angle);
1171 y=r * TMath::Sin(angle);
0f788f87 1172 z = 126.;
78134e48 1173 //
0f788f87 1174 if(i==11){//resistor rod inner
1175 rotrod.RotateZ(-90.+angle);
2d1d58a6 1176 rotrod1[0]= new TGeoRotation();
1177 rotpos[0]= new TGeoRotation();
1178 //
1179 rotrod1[0]->RotateZ(-90.+angle);
1180 *rotpos[0] = refl*rotrod; //rotation+reflection
ceb660a9 1181 v9->AddNode(tpcrrod,1,new TGeoCombiTrans(x,y, z, rotrod1[0])); //A
1182 v9->AddNode(tpcrrod,2,new TGeoCombiTrans(x,y,-z, rotpos[0])); //C
78134e48 1183 }
1184 else {
0f788f87 1185 v9->AddNode(tpcmrod,i+1,new TGeoTranslation(x,y,z));//shaft
1186 v9->AddNode(tpcmrod,i+19,new TGeoCombiTrans(x,y,-z,ref));//muon
c1637e41 1187 }
0f788f87 1188 // outer rods
c1637e41 1189 r=254.25;
1190 x=r * TMath::Cos(angle);
1191 y=r * TMath::Sin(angle);
0f788f87 1192 z=126.;
78134e48 1193 //
0f788f87 1194 if(i==3){//resistor rod outer
1195 rotrod.RotateZ(90.+angle);
2d1d58a6 1196 rotrod1[1]= new TGeoRotation();
1197 rotpos[1]= new TGeoRotation();
1198 rotrod1[1]->RotateZ(90.+angle);
1199 *rotpos[1] = refl*rotrod;//rotation+reflection
ceb660a9 1200 v9->AddNode(tpcrrod,3,new TGeoCombiTrans(x,y, z, rotrod1[1])); //A
1201 v9->AddNode(tpcrrod,4,new TGeoCombiTrans(x,y, -z, rotpos[1])); //C
78134e48 1202 }
0f788f87 1203 else {
1204 v9->AddNode(tpcmrod,i+37,new TGeoTranslation(x,y,z));//shaft
1205 v9->AddNode(tpcmrod,i+55,new TGeoCombiTrans(x,y,-z,ref));//muon
78134e48 1206 }
0f788f87 1207 if(i==15){
1208 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z)); //hv->A-side only
78134e48 1209 }
0f788f87 1210 } //end of rods positioning
69776907 1211
bde68ab0 1212 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
1213 alice->AddNode(v1,1);
c1637e41 1214
37831078 1215} // end of function
1216
ac81c411 1217//_____________________________________________________________________________
1218void AliTPCv2::AddAlignableVolumes() const
1219{
1220 //
1221 // Create entries for alignable volumes associating the symbolic volume
1222 // name with the corresponding volume path. Needs to be syncronized with
1223 // eventual changes in the geometry.
1224 //
1225 SetInnerChambersAlignable();
1226 SetOuterChambersAlignable();
1227}
1228
1229//_____________________________________________________________________________
1230void AliTPCv2::SetInnerChambersAlignable() const
1231{
1232 //
cdf69b9a 1233 AliGeomManager::ELayerID idTPC1 = AliGeomManager::kTPC1;
1234 Int_t modUID, modnum = 0;
d899e254 1235 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
1236 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
1237 TString vpappend = "/TPC_IROC_1";
1238 TString snstr1="TPC/EndcapA/Sector";
1239 TString snstr2="TPC/EndcapC/Sector";
1240 TString snappend="/InnerChamber";
ac81c411 1241 TString volpath, symname;
1242
1ac29fc4 1243 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1244 modUID = AliGeomManager::LayerToVolUID(idTPC1,modnum++);
1ac29fc4 1245 volpath = vpstr1;
1246 volpath += cnt;
1247 volpath += vpappend;
1248 symname = snstr1;
1249 symname += cnt;
1250 symname += snappend;
cdf69b9a 1251 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1252 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1253 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1254 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1255 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,cnt-1);
1256 alignableEntry->SetMatrix(matTtoL);
1ac29fc4 1257 }
65293f49 1258
ac81c411 1259 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1260 modUID = AliGeomManager::LayerToVolUID(idTPC1,modnum++);
d899e254 1261 volpath = vpstr2;
ac81c411 1262 volpath += cnt;
d899e254 1263 volpath += vpappend;
1264 symname = snstr2;
ac81c411 1265 symname += cnt;
d899e254 1266 symname += snappend;
cdf69b9a 1267 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1268 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1269 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1270 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1271 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,18+cnt-1);
1272 alignableEntry->SetMatrix(matTtoL);
ac81c411 1273 }
1274}
1275
ac81c411 1276//_____________________________________________________________________________
1277void AliTPCv2::SetOuterChambersAlignable() const
1278{
1279 //
cdf69b9a 1280 AliGeomManager::ELayerID idTPC2 = AliGeomManager::kTPC2;
1281 Int_t modUID, modnum = 0;
d899e254 1282 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
1283 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
1284 TString vpappend = "/TPC_OROC_1";
1285 TString snstr1="TPC/EndcapA/Sector";
1286 TString snstr2="TPC/EndcapC/Sector";
1287 TString snappend="/OuterChamber";
ac81c411 1288 TString volpath, symname;
1289
1290 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1291 modUID = AliGeomManager::LayerToVolUID(idTPC2,modnum++);
d899e254 1292 volpath = vpstr1;
ac81c411 1293 volpath += cnt;
d899e254 1294 volpath += vpappend;
1295 symname = snstr1;
ac81c411 1296 symname += cnt;
d899e254 1297 symname += snappend;
cdf69b9a 1298 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1299 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1300 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1301 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1302 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+cnt-1);
1303 alignableEntry->SetMatrix(matTtoL);
ac81c411 1304 }
84cbbd90 1305
ac81c411 1306 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1307 modUID = AliGeomManager::LayerToVolUID(idTPC2,modnum++);
d899e254 1308 volpath = vpstr2;
ac81c411 1309 volpath += cnt;
d899e254 1310 volpath += vpappend;
1311 symname = snstr2;
ac81c411 1312 symname += cnt;
d899e254 1313 symname += snappend;
cdf69b9a 1314 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1315 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1316 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1317 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1318 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+18+cnt-1);
1319 alignableEntry->SetMatrix(matTtoL);
ac81c411 1320 }
1321}
1322
37831078 1323//_____________________________________________________________________________
d899e254 1324void AliTPCv2::DrawDetector() const
37831078 1325{
1326 //
1327 // Draw a shaded view of the Time Projection Chamber version 1
1328 //
1329
1330 // Set everything unseen
1331 gMC->Gsatt("*", "seen", -1);
1332 //
1333 // Set ALIC mother transparent
1334 gMC->Gsatt("ALIC","SEEN",0);
1335 //
1336 // Set the volumes visible
1337 //
1338
1339 gMC->Gsatt("TPC ","SEEN",0);
1340 gMC->Gsatt("TOIN","SEEN",1);
1341 gMC->Gsatt("TOIN","COLO",7);
37831078 1342 gMC->Gsatt("TOCV","SEEN",1);
1343 gMC->Gsatt("TOCV","COLO",4);
1344 gMC->Gsatt("TSA1","SEEN",0);
1345 gMC->Gsatt("TSA2","SEEN",0);
1346 gMC->Gsatt("TSA3","SEEN",0);
79575d04 1347 gMC->Gsatt("TSA4","SEEN",0);
1348 gMC->Gsatt("TSA5","SEEN",0);
37831078 1349 gMC->Gsatt("TOFC","SEEN",1);
1350 gMC->Gsatt("TOFC","COLO",4);
37831078 1351 gMC->Gsatt("TSA6","SEEN",0);
1352 gMC->Gsatt("TSA7","SEEN",0);
79575d04 1353 gMC->Gsatt("TSA8","SEEN",0);
37831078 1354 gMC->Gsatt("TIIN","SEEN",1);
79575d04 1355 gMC->Gsatt("TIIN","COLO",7);
1356 gMC->Gsatt("TII1","SEEN",0);
1357 gMC->Gsatt("TIFC","SEEN",1);
1358 gMC->Gsatt("TIFC","COLO",4);
1359 gMC->Gsatt("TSA9","SEEN",0);
37831078 1360 gMC->Gsatt("TS10","SEEN",0);
1361 gMC->Gsatt("TS11","SEEN",0);
1362 gMC->Gsatt("TS12","SEEN",0);
37831078 1363 gMC->Gsatt("TS13","SEEN",0);
1364 gMC->Gsatt("TS14","SEEN",0);
79575d04 1365 gMC->Gsatt("TICC","SEEN",0);
1366 gMC->Gsatt("TICM","SEEN",0);
37831078 1367 gMC->Gsatt("TS15","SEEN",0);
1368 gMC->Gsatt("TS16","SEEN",0);
37831078 1369 gMC->Gsatt("TS17","SEEN",0);
79575d04 1370 gMC->Gsatt("TS18","SEEN",0);
1371 gMC->Gsatt("TS19","SEEN",0);
1372 gMC->Gsatt("TPJ1","SEEN",0);
1373 gMC->Gsatt("TPJ2","SEEN",0);
1374 gMC->Gsatt("TICS","SEEN",0);
1375 gMC->Gsatt("TDGN","SEEN",0);
37831078 1376 gMC->Gsatt("TIRC","SEEN",0);
1377 gMC->Gsatt("TIC1","SEEN",1);
1378 gMC->Gsatt("TIPP","SEEN",0);
1379 gMC->Gsatt("TIC3","SEEN",0);
1380 gMC->Gsatt("TRCE","SEEN",0);
1381 gMC->Gsatt("TPSC","SEEN",0);
79575d04 1382 gMC->Gsatt("TPCC","SEEN",0);
37831078 1383 gMC->Gsatt("TORC","SEEN",0);
1384 gMC->Gsatt("TOPP","SEEN",0);
1385 gMC->Gsatt("TOC3","SEEN",0);
1386 gMC->Gsatt("TOC1","SEEN",1);
1387 gMC->Gsatt("TSSW","SEEN",1);
1388 gMC->Gsatt("TSWC","SEEN",1);
37831078 1389 gMC->Gsatt("TSSW","COLO",3);
1390 gMC->Gsatt("TSWC","COLO",3);
1391 gMC->Gsatt("TSCE","COLO",6);
79575d04 1392 gMC->Gsatt("TSCE","SEEN",1);
37831078 1393 gMC->Gsatt("TWES","SEEN",0);
1394 gMC->Gsatt("TSWB","SEEN",0);
1395 gMC->Gsatt("TPEL","SEEN",0);
1396 gMC->Gsatt("TPMW","SEEN",1);
37831078 1397 gMC->Gsatt("TESR","SEEN",1);
1398 gMC->Gsatt("TPMW","COLO",12);
37831078 1399 gMC->Gsatt("TIC1","COLO",5);
79575d04 1400 gMC->Gsatt("TOC1","COLO",5);
37831078 1401 gMC->Gsatt("TESB","SEEN",0);
37831078 1402 gMC->Gsatt("THVM","SEEN",1);
1403 gMC->Gsatt("THVM","COLO",11);
79575d04 1404 gMC->Gsatt("THVH","SEEN",0);
1405 gMC->Gsatt("TPSR","SEEN",0);
37831078 1406 gMC->Gsatt("THVL","SEEN",0);
79575d04 1407 gMC->Gsatt("THVC","SEEN",0);
37831078 1408 gMC->Gsatt("THVE","SEEN",0);
1409 gMC->Gsatt("THVR","SEEN",0);
79575d04 1410 gMC->Gsatt("TPSS","SEEN",0);
1411 gMC->Gsatt("TPUS","SEEN",0);
1412 gMC->Gsatt("TPLS","SEEN",0);
37831078 1413
1414 //
1415 gMC->Gdopt("hide", "on");
1416 gMC->Gdopt("shad", "on");
1417 gMC->Gsatt("*", "fill", 7);
1418 gMC->SetClipBox(".");
1419 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1420 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1421 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1422 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1423 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1424 gMC->DefaultRange();
1425 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1426 gMC->Gdhead(1111, "Time Projection Chamber");
1427 gMC->Gdman(18, 4, "MAN");
1428 gMC->Gdopt("hide","off");
1429}
1430
1431//_____________________________________________________________________________
1432void AliTPCv2::CreateMaterials()
1433{
1434 //
1435 // Define materials for version 2 of the Time Projection Chamber
1436 //
1437
1438 AliTPC::CreateMaterials();
1439}
1440
1441//_____________________________________________________________________________
1442void AliTPCv2::Init()
1443{
1444 //
1445 // Initialises version 2 of the TPC after that it has been built
1446 //
1447
1448 Int_t *idtmed = fIdtmed->GetArray();
1449
1450 AliTPC::Init();
d4c354b9 1451
c1637e41 1452
1453 fIdSens=gMC->VolId("TPC_Strip"); // one strip is always selected...
d4c354b9 1454
c1637e41 1455 fIDrift=gMC->VolId("TPC_Drift");
1456 fSecOld=-100; // fake number
37831078 1457
d9888f70 1458 gMC->SetMaxNStep(-30000); // max. number of steps increased
37831078 1459
4481461d 1460 if (fPrimaryIonisation) {
1461 gMC->Gstpar(idtmed[2],"PRIMIO_E", 20.77); // 1st ionisation potential
1462
1463 gMC->Gstpar(idtmed[2],"PRIMIO_N", 14.35);
1464 gMC->Gstpar(idtmed[2],"LOSS", 14); // specific energy loss
8143dfb2 1465 gMC->Gstpar(idtmed[2],"STRA",4);
4481461d 1466 } else {
1467 gMC->Gstpar(idtmed[2],"LOSS", 5); // specific energy loss
1468 }
1469
37831078 1470
a9d15241 1471 AliDebug(1,"*** TPC version 2 initialized ***");
1472 AliDebug(1,Form("Maximum number of steps = %d",gMC->GetMaxNStep()));
37831078 1473
1474 //
fe4da5cc 1475
1476}
1477
1478//_____________________________________________________________________________
1479void AliTPCv2::StepManager()
1480{
1481 //
1482 // Called for every step in the Time Projection Chamber
1483 //
1484
1485 //
1486 // parameters used for the energy loss calculations
1487 //
73042f01 1488 const Float_t kprim = 14.35; // number of primary collisions per 1 cm
1489 const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2
1490 const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation
ec6ac410 1491 const Int_t kMaxDistRef =15; // maximal difference between 2 stored references
fe4da5cc 1492
73042f01 1493 const Float_t kbig = 1.e10;
fe4da5cc 1494
1495 Int_t id,copy;
e61fd20d 1496 Float_t hits[5];
fe4da5cc 1497 Int_t vol[2];
37831078 1498 TLorentzVector p;
fe4da5cc 1499
37831078 1500 vol[1]=0; // preset row number to 0
fe4da5cc 1501 //
b97617a6 1502 if (fPrimaryIonisation) gMC->SetMaxStep(kbig);
fe4da5cc 1503
0a6d8768 1504 if(!gMC->IsTrackAlive()) return; // particle has disappeared
fe4da5cc 1505
cfce8870 1506 Float_t charge = gMC->TrackCharge();
fe4da5cc 1507
1508 if(TMath::Abs(charge)<=0.) return; // take only charged particles
1509
37831078 1510 // check the sensitive volume
1511
c1637e41 1512 id = gMC->CurrentVolID(copy); // vol ID and copy number (starts from 1!)
1513 if(id != fIDrift && id != fIdSens) return; // not in the sensitive folume
da33556f 1514
c1637e41 1515 gMC->TrackPosition(p);
1516 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1517 //
1518
1519 //
1520 Double_t angle = TMath::ACos(p[0]/r);
1521 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1522 //
1523 // angular segment, it is not a real sector number...
1524 //
1525 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1526 fTPCParam->GetInnerAngle());
1527 // rotate to segment "0"
1528 Float_t cos,sin;
1529 fTPCParam->AdjustCosSin(sector,cos,sin);
1530 Float_t x1=p[0]*cos + p[1]*sin;
1531 // check if within sector's limits
5bd5dbc4 1532 if((x1>=fTPCParam->GetInnerRadiusLow()&&x1<=fTPCParam->GetInnerRadiusUp())
1533 ||(x1>=fTPCParam->GetOuterRadiusLow()&&x1<=fTPCParam->GetOuterRadiusUp())){
c1637e41 1534 // calculate real sector number...
1535 if (x1>fTPCParam->GetOuterRadiusLow()){
1536 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1537 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1538 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
37831078 1539 }
c1637e41 1540 else
1541 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1542 //
1543 // here I have a sector number
1544 //
37831078 1545
c1637e41 1546 vol[0]=sector;
ec6ac410 1547
1548 static Double_t lastReferenceR=0;
1549 if (TMath::Abs(lastReferenceR-r)>kMaxDistRef){
1550 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kTPC);
1551 lastReferenceR = r;
1552 }
1553
c1637e41 1554 // check if change of sector
1555 if(sector != fSecOld){
1556 fSecOld=sector;
1557 // add track reference
e6add757 1558 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kTPC);
c1637e41 1559 }
1560 // track is in the sensitive strip
1561 if(id == fIdSens){
1562 // track is entering the strip
1563 if (gMC->IsTrackEntering()){
1564 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1565 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1566 // row numbers are autonomous for lower and upper sectors
1567 if(vol[0] > fTPCParam->GetNInnerSector()) {
1568 vol[1] -= fTPCParam->GetNRowLow();
1569 }
1570 //
1571 if(vol[0]<fTPCParam->GetNInnerSector()&&vol[1] == 0){
37831078 1572
c1637e41 1573 // lower sector, row 0, because Jouri wants to have this
37831078 1574
c1637e41 1575 gMC->TrackMomentum(p);
1576 hits[0]=p[0];
1577 hits[1]=p[1];
1578 hits[2]=p[2];
1579 hits[3]=0.; // this hit has no energy loss
1580 // Get also the track time for pileup simulation
1581 hits[4]=gMC->TrackTime();
6a905708 1582
c1637e41 1583 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
1584 }
1585 //
e61fd20d 1586
c1637e41 1587 gMC->TrackPosition(p);
1588 hits[0]=p[0];
1589 hits[1]=p[1];
1590 hits[2]=p[2];
1591 hits[3]=0.; // this hit has no energy loss
1592 // Get also the track time for pileup simulation
1593 hits[4]=gMC->TrackTime();
930ee558 1594
c1637e41 1595 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
37831078 1596
c1637e41 1597 }
1598 else return;
1599 }
37831078 1600 //-----------------------------------------------------------------
c1637e41 1601 // charged particle is in the sensitive drift volume
37831078 1602 //-----------------------------------------------------------------
cfce8870 1603 if(gMC->TrackStep() > 0) {
b97617a6 1604 Int_t nel=0;
1605 if (!fPrimaryIonisation) {
1606 nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1;
1607 }
1608 else {
1609 Float_t edep = gMC->Edep();
1610 if (edep > 0.) nel = (Int_t)((gMC->Edep()*1.5)/kwIon) + 1;
1611 }
fe4da5cc 1612 nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV
c1637e41 1613 //
37831078 1614 gMC->TrackPosition(p);
1615 hits[0]=p[0];
1616 hits[1]=p[1];
1617 hits[2]=p[2];
fe4da5cc 1618 hits[3]=(Float_t)nel;
c1637e41 1619
fe4da5cc 1620 // Add this hit
c1637e41 1621
6a905708 1622 if (fHitType&&2){
1623 gMC->TrackMomentum(p);
1624 Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1625 Float_t precision = (momentum>0.1) ? 0.002 :0.01;
1626 fTrackHits->SetHitPrecision(precision);
1627 }
e61fd20d 1628
1629 // Get also the track time for pileup simulation
1630 hits[4]=gMC->TrackTime();
c1637e41 1631
1632 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
e61fd20d 1633
c1637e41 1634 } // step>0
1635 } //within sector's limits
fe4da5cc 1636 // Stemax calculation for the next step
1637
1638 Float_t pp;
0a6d8768 1639 TLorentzVector mom;
b97617a6 1640 // below is valid only for Geant3 (fPromaryIonisation not set)
1641 if(!fPrimaryIonisation){
1642 gMC->TrackMomentum(mom);
1643 Float_t ptot=mom.Rho();
1644 Float_t betaGamma = ptot/gMC->TrackMass();
595bf2c3 1645
b97617a6 1646 Int_t pid=gMC->TrackPid();
1647 if((pid==kElectron || pid==kPositron) && ptot > 0.002)
1648 {
1649 pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau!
1650 }
1651 else
1652 {
1653
1654 betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg
b40afa5e 1655 pp=kprim*AliMathBase::BetheBlochAleph(betaGamma);
595bf2c3 1656
fe4da5cc 1657 }
1658
b97617a6 1659 Double_t rnd = gMC->GetRandom()->Rndm();
fe4da5cc 1660
b97617a6 1661 gMC->SetMaxStep(-TMath::Log(rnd)/pp);
1662 }
c1637e41 1663
fe4da5cc 1664}
1665
73042f01 1666