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Added LK0Spectra task to library
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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"
c5d5037c 47#include "TGeoCone.h"
c1637e41 48#include "AliMC.h"
49#include "TGeoManager.h"
50#include "TGeoVolume.h"
51#include "TGeoPcon.h"
52#include "TGeoTube.h"
53#include "TGeoPgon.h"
54#include "TGeoTrd1.h"
55#include "TGeoCompositeShape.h"
56#include "TGeoPara.h"
57ClassImp(AliTPCv1)
37831078 58
c1637e41 59//_____________________________________________________________________________
37831078 60
179c6296 61 AliTPCv1::AliTPCv1():AliTPC(),fIdSens(0)
62{
37831078 63
c1637e41 64 fHitType = 1;
37831078 65
c1637e41 66}
67
68//_____________________________________________________________________________
69AliTPCv1::AliTPCv1(const char *name, const char *title)
179c6296 70 :AliTPC(name, title),fIdSens(0)
71 {
c1637e41 72 //
73 // Standard constructor for Time Projection Chamber
74 //
37831078 75
37831078 76
c1637e41 77 if (fTPCParam)
78 fTPCParam->Write(fTPCParam->GetTitle());
79575d04 79
c1637e41 80 fHitType=1;
81}
79575d04 82
c1637e41 83//_____________________________________________________________________________
84void AliTPCv1::CreateGeometry()
85{
86 //-------------------------------------------------------------
87 // Creates geometry for Time Projection Chamber version 1
88 // Detailed geometry -- Fast simulation - space points
89 // at the pad-rows centers
90 // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
91 //-----------------------------------------------------------
37831078 92
c1637e41 93 //Begin_Html
94 /*
95 <img src="picts/AliTPC.gif">
96 */
97 //End_Html
98 //Begin_Html
99 /*
100 <img src="picts/AliTPCv1Tree.gif">
101 */
102 //End_Html
37831078 103 //----------------------------------------------------------
c1637e41 104 // This geometry is written using TGeo class
105 // Firstly the shapes are defined, and only then the volumes
106 // What is recognized by the MC are volumes
37831078 107 //----------------------------------------------------------
c1637e41 108 //
109 // tpc - this will be the mother volume
110 //
37831078 111
c1637e41 112 //
113 // here I define a volume TPC
114 // retrive the medium name with "TPC_" as a leading string
115 //
8ad31ee5 116 TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections
c1637e41 117 //
8ad31ee5 118 tpc->DefineSection(0,-289.6,77.,278.);
119 tpc->DefineSection(1,-262.1,77.,278.);
c1637e41 120 //
8ad31ee5 121 tpc->DefineSection(2,-262.1,83.1,278.);
122 tpc->DefineSection(3,-260.,83.1,278.);
c1637e41 123 //
8ad31ee5 124 tpc->DefineSection(4,-260.,70.,278.);
125 tpc->DefineSection(5,-259.6,70.,278.);
c1637e41 126 //
8ad31ee5 127 tpc->DefineSection(6,-259.6,68.1,278.);
128 tpc->DefineSection(7,-253.6,68.1,278.);
c1637e41 129 //
c5d5037c 130 tpc->DefineSection(8,-253.6,67.88,278.);//hs
131 tpc->DefineSection(9,-74.0,60.68,278.);// hs
c1637e41 132 //
8ad31ee5 133 tpc->DefineSection(10,-74.0,60.1,278.);
134 tpc->DefineSection(11,-73.3,60.1,278.);
c1637e41 135 //
8ad31ee5 136 tpc->DefineSection(12,-73.3,56.9,278.);
137 tpc->DefineSection(13,-68.5,56.9,278.);
c1637e41 138 //
8ad31ee5 139 tpc->DefineSection(14,-68.5,60.,278.);
140 tpc->DefineSection(15,-64.7,60.,278.);
78134e48 141 //
8ad31ee5 142 tpc->DefineSection(16,-64.7,56.9,278.);
143 tpc->DefineSection(17,73.3,56.9,278.);
78134e48 144 //
8ad31ee5 145 tpc->DefineSection(18,73.3,60.1,278.);
146 tpc->DefineSection(19,74.0,60.1,278.);
4fb9bd37 147 //
c5d5037c 148 tpc->DefineSection(20,74.0,60.68,278.);// hs
149 tpc->DefineSection(21,253.6,65.38,278.);// hs
4fb9bd37 150 //
8ad31ee5 151 tpc->DefineSection(22,253.6,65.6,278.);
152 tpc->DefineSection(23,259.6,65.6,278.);
4fb9bd37 153 //
8ad31ee5 154 tpc->DefineSection(24,259.6,70.0,278.);
155 tpc->DefineSection(25,260.,70.0,278.);
4fb9bd37 156 //
8ad31ee5 157 tpc->DefineSection(26,260.,83.1,278.);
158 tpc->DefineSection(27,262.1,83.1,278.);
159 //
160 tpc->DefineSection(28,262.1,77.,278);
161 tpc->DefineSection(29,289.6,77.,278.);
162
163
c1637e41 164 //
165 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
166 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
167 //
168 // drift volume - sensitive volume, extended beyond the
169 // endcaps, because of the alignment
170 //
171 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
172 dvol->DefineSection(0,-260.,74.5,264.4);
173 dvol->DefineSection(1,-253.6,74.5,264.4);
174 //
175 dvol->DefineSection(2,-253.6,76.6774,258.);
176 dvol->DefineSection(3,253.6,76.6774,258.);
177 //
178 dvol->DefineSection(4,253.6,74.5,264.4);
179 dvol->DefineSection(5,260.,74.5,264.4);
180 //
f3d601a5 181 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-1");
c1637e41 182 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
183 //
184 //
185 v1->AddNode(v9,1);
186 //
187 // outer insulator
188 //
189 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
190 //
191 tpco->DefineSection(0,-256.6,264.8,278.);
192 tpco->DefineSection(1,-253.6,264.8,278.);
193 //
194 tpco->DefineSection(2,-253.6,258.,278.);
195 tpco->DefineSection(3,250.6,258.,278.);
196 //
197 tpco->DefineSection(4,250.6,258.,275.5);
198 tpco->DefineSection(5,253.6,258.,275.5);
199 //
200 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
201 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
202 //
203 // outer containment vessel
204 //
205 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
206 //
207 tocv->DefineSection(0,-256.6,264.8,278.);
208 tocv->DefineSection(1,-253.6,264.8,278.);
209 //
210 tocv->DefineSection(2,-253.6,274.8124,278.);
211 tocv->DefineSection(3,247.6,274.8124,278.);
212 //
213 tocv->DefineSection(4,247.6,270.4,278.);
214 tocv->DefineSection(5,250.6,270.4,278.);
215 //
216 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
217 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
218 //
219 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
220 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
221 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
222 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
223 //
224 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
225 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
226 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
227 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
228 //
229 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
230 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
231 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
232 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
c5d5037c 233 TGeoMedium *mhs = gGeoManager->GetMedium("TPC_Steel");
234 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
c1637e41 235 //-------------------------------------------------------
236 // Tpc Outer Field Cage
237 // daughters - composite (sandwich)
238 //-------------------------------------------------------
37831078 239
c1637e41 240 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
241 //
242 tofc->DefineSection(0,-253.6,258.,269.6);
243 tofc->DefineSection(1,-250.6,258.,269.6);
244 //
245 tofc->DefineSection(2,-250.6,258.,260.0676);
246 tofc->DefineSection(3,250.6,258.,260.0676);
247 //
248 tofc->DefineSection(4,250.6,258.,275.5);
249 tofc->DefineSection(5,253.6,258.,275.5);
250 //
251 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
252 //sandwich
253 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
254 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
255 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
256 //
257 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
258 //
259 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
260 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
261 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
262 //
263 // outer part - positioning
264 //
265 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
266 //
267 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
268 //
456cb019 269 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
c1637e41 270 //
271 v2->AddNode(v3,1); v2->AddNode(v4,1);
272 //
273 v1->AddNode(v2,1);
274 //--------------------------------------------------------------------
275 // Tpc Inner INsulator (CO2)
276 // the cones, the central drum and the inner f.c. sandwich with a piece
277 // of the flane will be placed in the TPC
278 //--------------------------------------------------------------------
279 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
280 //
281 tpci->DefineSection(0,-253.6,68.4,76.6774);
282 tpci->DefineSection(1,-74.0,61.2,76.6774);
283 //
284 tpci->DefineSection(2,74.0,61.2,76.6774);
285 //
286 tpci->DefineSection(3,253.6,65.9,76.6774);
287 //
288 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
289 //
290 // now the inner field cage - only part of flanges (2 copies)
291 //
292 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
293 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
294 //
295 //---------------------------------------------------------
296 // Tpc Inner Containment vessel - Muon side
297 //---------------------------------------------------------
298 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
299 //
300 tcms->DefineSection(0,-259.1,68.1,74.2);
301 tcms->DefineSection(1,-253.6,68.1,74.2);
302 //
303 tcms->DefineSection(2,-253.6,68.1,68.4);
304 tcms->DefineSection(3,-74.0,60.9,61.2);
305 //
306 tcms->DefineSection(4,-74.0,60.1,61.2);
307 tcms->DefineSection(5,-73.3,60.1,61.2);
308 //
309 tcms->DefineSection(6,-73.3,56.9,61.2);
310 tcms->DefineSection(7,-73.0,56.9,61.2);
311 //
312 tcms->DefineSection(8,-73.0,56.9,58.8);
313 tcms->DefineSection(9,-71.3,56.9,58.8);
314 //
315 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
c5d5037c 316 //------------------------------------------------
317 // Heat screen muon side
318 //------------------------------------------------
319
320 TGeoCone *thsm = new TGeoCone(89.8,67.88,68.1,60.68,60.9);
321 TGeoCone *thsmw = new TGeoCone(89.8,67.94,68.04,60.74,60.84);
322 TGeoVolume *hvsm = new TGeoVolume("TPC_HSM",thsm,mhs); //steel
323 TGeoVolume *hvsmw = new TGeoVolume("TPC_HSMW",thsmw,m12); //water
324 // assembly heat screen muon
325 hvsm->AddNode(hvsmw,1);
c1637e41 326 //-----------------------------------------------
327 // inner containment vessel - shaft side
328 //-----------------------------------------------
329 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
330 //
331 tcss->DefineSection(0,71.3,56.9,58.8);
332 tcss->DefineSection(1,73.0,56.9,58.8);
333 //
334 tcss->DefineSection(2,73.0,56.9,61.2);
335 tcss->DefineSection(3,73.3,56.9,61.2);
336 //
337 tcss->DefineSection(4,73.3,60.1,61.2);
338 tcss->DefineSection(5,74.0,60.1,61.2);
339 //
340 tcss->DefineSection(6,74.0,60.9,61.2);
341 tcss->DefineSection(7,253.6,65.6,65.9);
342 //
343 tcss->DefineSection(8,253.6,65.6,74.2);
344 tcss->DefineSection(9,258.1,65.6,74.2);
345 //
346 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
c5d5037c 347 //-------------------------------------------------
348 // Heat screen shaft side
349 //--------------------------------------------------
350 TGeoCone *thss = new TGeoCone(89.8,60.68,60.9,65.38,65.6);
351 TGeoCone *thssw = new TGeoCone(89.8,60.74,60.84,65.44,65.54);
352 TGeoVolume *hvss = new TGeoVolume("TPC_HSS",thss,mhs); //steel
353 TGeoVolume *hvssw = new TGeoVolume("TPC_HSSW",thssw,m12); //water
354 //assembly heat screen shaft
355 hvss->AddNode(hvssw,1);
c1637e41 356 //-----------------------------------------------
357 // Inner field cage
358 // define 4 parts and make an assembly
359 //-----------------------------------------------
360 // part1 - Al - 2 copies
361 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
362 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
363 // sandwich - outermost parts - 2 copies
364 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
365 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
366 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
367 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
368 //
369 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
370 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
371 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
372 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
373 //
374 // middle parts - 2 copies
375 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
376 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
377 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
378 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
379 //
380 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
381 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
382 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
383 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
384 // central part - 1 copy
385 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
386 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
387 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
388 //
389 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
390 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
391 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
392 //
393 // inner part - positioning
394 //
395 // creating a sandwich
396 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
397 //
398 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
399 //
400 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
401 //
402 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
403 //
404 tv100->AddNode(tv10,1);
405 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
406 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
407 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
408 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
409 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
410 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
411 //
412 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
413 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
414 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
c5d5037c 415 v1->AddNode(hvsm,1,new TGeoTranslation(0.,0.,-163.8));
416 v1->AddNode(hvss,1,new TGeoTranslation(0.,0.,163.8));
c1637e41 417 v9->AddNode(tv100,1);
418 //
419 // central drum
420 //
421 // flange + sandwich
422 //
423 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
424 cfl->DefineSection(0,-71.1,59.7,61.2);
425 cfl->DefineSection(1,-68.6,59.7,61.2);
426 //
427 cfl->DefineSection(2,-68.6,60.6324,61.2);
428 cfl->DefineSection(3,68.6,60.6324,61.2);
429 //
430 cfl->DefineSection(4,68.6,59.7,61.2);
431 cfl->DefineSection(5,71.1,59.7,61.2);
432 //
433 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
434 // sandwich
435 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
436 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
437 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
438 //
439 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
440 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
441 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
442 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
443 //
444 // seals for central drum 2 copies
445 //
446 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
447 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
448 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 449 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
450 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 451 //
452 // seal collars
453 TGeoPcon *se = new TGeoPcon(0.,360.,6);
454 se->DefineSection(0,-72.8,59.7,61.2);
455 se->DefineSection(1,-72.3,59.7,61.2);
456 //
457 se->DefineSection(2,-72.3,58.85,61.2);
458 se->DefineSection(3,-71.6,58.85,61.2);
459 //
460 se->DefineSection(4,-71.6,59.7,61.2);
461 se->DefineSection(5,-71.3,59.7,61.2);
462 //
463 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
464 //
465 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
466 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
467 //
468 // define reflection matrix
469 //
4fa47888 470 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 471 //
472 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
473 //
a1ec4d07 474 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
475 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 476 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
477 //
478 // central membrane - 2 rings and a mylar membrane - assembly
479 //
480 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
481 TGeoTube *oh = new TGeoTube(250.,256.,.5);
482 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
483 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
484 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
485 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
486 //
487 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
488 cm->AddNode(ihv,1);
489 cm->AddNode(ohv,1);
490 cm->AddNode(memv,1);
491 v9->AddNode(cm,1);
492 //
493 // end caps - they are make as an assembly of single segments
494 // containing both readout chambers
495 //
d899e254 496 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 497 Double_t thick=1.5; // rib
d899e254 498 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 499 //
d899e254 500 Double_t lowEdge = 86.3; // hole in the wheel
501 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 502 //
503 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
504 //
505 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
506 //
d899e254 507 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
508 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 509 //
d899e254 510 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
511 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 512 //
d899e254 513 Double_t ys = shift*TMath::Sin(openingAngle);
514 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 515 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
516 tr->RegisterYourself();
517 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
518 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
519 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
520 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
521 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
522 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
523 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
524 //
525 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
526 //
527 // readout chambers
528 //
529 // IROC first
530 //
531 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
532 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
533 // empty space
534 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
535 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
536 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
537 //bars
538 Double_t tga = (19.8328-12.3742)/39.3;
539 Double_t xmin,xmax;
540 xmin = 9.55*tga+12.3742;
541 xmax = 9.95*tga+12.3742;
542 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
543 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
544 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
545 xmin=19.4*tga+12.3742;
546 xmax=19.9*tga+12.3742;
547 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
548 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
549 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
550 xmin=29.35*tga+12.3742;
551 xmax=29.75*tga+12.3742;
552 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
553 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
554 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
555 //
556 // holes for connectors
557 //
558 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
559 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 560 TString fileName(gSystem->Getenv("ALICE_ROOT"));
561 fileName += "/TPC/conn_iroc.dat";
c1637e41 562 ifstream in;
d9e80aca 563 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 564 for(Int_t i =0;i<86;i++){
456cb019 565 Double_t y = 3.99;
c1637e41 566 Double_t x,z,ang;
567 in>>x>>z>>ang;
456cb019 568 z-=26.5;
c1637e41 569 TGeoRotation *rrr = new TGeoRotation();
570 rrr->RotateY(ang);
571 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
572 ibdv->AddNode(connv,i+1,trans);
573 }
574 in.close();
575 // "cap"
576 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
577 // "hole"
578 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
579 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
580 tr1->RegisterYourself();
581 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
582 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
583 //
584 // pad plane and wire fixations
585 //
586 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
587 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
588 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
589 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
590 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
591 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
592 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
593 //
594 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
595 //
596 iroc->AddNode(ibdv,1);
597 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
598 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
599 tga =(23.3521-14.5974)/49.65;
600 Double_t xx = 24.825*tga+14.5974-0.6;
601 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
602 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
603 //
604 // OROC
605 //
606 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
607 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
608 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
609 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
610 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
611 //horizontal bars
612 tga=(38.5084-20.2938)/99.3;
613 xmin=tga*10.2+20.2938;
614 xmax=tga*10.6+20.2938;
615 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
616 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
617 //
618 xmin=22.55*tga+20.2938;
619 xmax=24.15*tga+20.2938;
620 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
621 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
622 //
623 xmin=36.1*tga+20.2938;
624 xmax=36.5*tga+20.2938;
625 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
626 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
627 //
628 xmin=49.0*tga+20.2938;
629 xmax=50.6*tga+20.2938;
630 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
631 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
632 //
633 xmin=63.6*tga+20.2938;
634 xmax=64.0*tga+20.2938;
635 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
636 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
637 //
638 xmin=75.5*tga+20.2938;
639 xmax=77.15*tga+20.2938;
640 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
641 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
642 //
643 xmin=88.7*tga+20.2938;
644 xmax=89.1*tga+20.2938;
645 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
646 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
647 //
648 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
649 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
650 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
651 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
652 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
653 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
654 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
655 // vertical bars
656 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
657 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
658 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
659 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
660 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
661 //
662 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
663 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
664 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
665 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
666 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
667 //
668 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
669 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
670 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
671 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
672 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
673 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
674 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
675 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
676 //
677 // holes for connectors
678 //
d9e80aca 679 fileName = gSystem->Getenv("ALICE_ROOT");
680 fileName += "/TPC/conn_oroc.dat";
681 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 682 for(Int_t i =0;i<78;i++){
683 Double_t y =3.89;
684 Double_t x,z,ang;
685 Double_t x1,z1,x2,z2;
686 in>>x>>z>>ang;
687 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
688 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
689 //
690 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
691 //
692 TGeoRotation *rr = new TGeoRotation();
693 rr->RotateY(ang);
694 z1-=54.95;
695 z2-=54.95;
696 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
697 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
698 obdv->AddNode(connv,i+1,trans1);
699 obdv->AddNode(connv,i+79,trans2);
700 }
701 in.close();
702 // cap
703 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
704 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
705 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
706 tr5->RegisterYourself();
707 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
708 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
709 //
710 // pad plane and wire fixations
711 //
712 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
713 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
714 //
715 tga=(43.5239-23.3874)/114.2;
716 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
717 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
718 xx = 57.1*tga+23.3874-0.7;
719 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
720 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
721 //
722 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
723 //
724 oroc->AddNode(obdv,1);
725 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
726 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
727 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
728 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
729 //
730 // now iroc and oroc are placed into a sector...
731 //
a1ec4d07 732 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
733 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
c1637e41 734 TGeoRotation rot1("rot1",90.,90.,0.);
735 TGeoRotation rot2("rot2");
736 rot2.RotateY(10.);
737 TGeoRotation *rot = new TGeoRotation("rot");
738 *rot=rot1*rot2;
739 //
740 Double_t x0,y0;
d899e254 741 x0=110.2*TMath::Cos(openingAngle);
742 y0=110.2*TMath::Sin(openingAngle);
20527578 743 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
744 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 745 x0=188.45*TMath::Cos(openingAngle);
746 y0=188.45*TMath::Sin(openingAngle);
20527578 747 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
748 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
c1637e41 749 //
a1ec4d07 750 // A-side
c1637e41 751 //
a1ec4d07 752 secta->AddNode(ch,1);
753 secta->AddNode(iroc,1,combi1a);
754 secta->AddNode(oroc,1,combi2a);
c1637e41 755 //
a1ec4d07 756 // C-side
757 //
758 sectc->AddNode(ch,1);
759 sectc->AddNode(iroc,1,combi1c);
760 sectc->AddNode(oroc,1,combi2c);
761 //
762 // now I try to make wheels...
763 //
764 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
765 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 766 //
767 for(Int_t i =0;i<18;i++){
768 Double_t phi = (20.*i);
769 TGeoRotation *r = new TGeoRotation();
770 r->RotateZ(phi);
a1ec4d07 771 wheela->AddNode(secta,i+1,r);
772 wheelc->AddNode(sectc,i+1,r);
79575d04 773
c1637e41 774 }
775 // wheels in the drift volume!
c1637e41 776 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 777 v9->AddNode(wheela,1,combi3);
778 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 779
780 //_____________________________________________________________
781 // service support wheel
782 //_____________________________________________________________
783 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
784 sw->DefineSection(0,-4.,80.5,251.75);
785 sw->DefineSection(1,4.,80.5,251.75);
786 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
787 //
788 thick=1.;
d899e254 789 shift = thick/TMath::Sin(openingAngle);
c1637e41 790 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
791 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
792 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
793 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
794 //
74518339 795 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
796 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
797 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
798 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
799 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
800 //
801 shv->AddNode(elv,1);
802 //
803 //
d899e254 804 ys = shift*TMath::Sin(openingAngle);
805 xs = shift*TMath::Cos(openingAngle);
c1637e41 806 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
807 // cover
808 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
809 co->DefineSection(0,-0.5,77.,255.25);
810 co->DefineSection(1,0.5,77.,255.25);
811 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
812 // hole in a cover
813 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 814 shift=4./TMath::Sin(openingAngle);
c1637e41 815 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
816 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
817 //
818 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
819 //
d899e254 820 ys = shift*TMath::Sin(openingAngle);
821 xs = shift*TMath::Cos(openingAngle);
c1637e41 822 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
823 //
824 // Sector as an Assembly
825 //
826 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
827 swhs->AddNode(swv,1);
828 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
829 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
830 //
831 // SSW as an Assembly of sectors
832 //
833 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
834 for(Int_t i =0;i<18;i++){
835 Double_t phi = (20.*i);
836 TGeoRotation *r = new TGeoRotation();
837 r->RotateZ(phi);
838 swheel->AddNode(swhs,i+1,r);
839 }
840 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
841 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
842
843 // sensitive strips
f3d601a5 844 TGeoMedium *m8 = gGeoManager->GetMedium("TPC_Ne-CO2-2");
c1637e41 845 Int_t totrows;
846 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
847 Double_t *upar;
848 upar=NULL;
849 gGeoManager->Volume("TPC_Strip","PGON",m8->GetId(),upar);
850 upar=new Double_t [10];
851 upar[0]=0.;
852 upar[1]=360.;
853 upar[2]=18.;
854 upar[3]=2.;
855 //
856 upar[4]=-124.8;
857 upar[7]=124.8;
858
859 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
860
861 upar[5]=rlow;
862 upar[6]=rlow+.01;
863 upar[8]=upar[5];
864 upar[9]=upar[6];
865 //
866 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
867 gGeoManager->Node("TPC_Strip",totrows+1,
868 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
869 //
870 // now, strips
871 //
872 //lower sectors
873 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
874 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
875 upar[5]=rlow;
876 upar[6]=rlow+.01;
877 upar[8]=upar[5];
878 upar[9]=upar[6];
879 gGeoManager->Node("TPC_Strip",i,
880 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
881 gGeoManager->Node("TPC_Strip",totrows+i,
882 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
883 }
884 //upper sectors
885 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
886 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
887 upar[5]=rlow;
888 upar[6]=rlow+.01;
889 upar[8]=upar[5];
890 upar[9]=upar[6];
891 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
892 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
893 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
894 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
895 }
896
37831078 897 //----------------------------------------------------------
c1637e41 898 // TPc Support Rods - MAKROLON
37831078 899 //----------------------------------------------------------
c1637e41 900 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
901 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 902 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
903 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
c1637e41 904 // upper and lower rods differ in length!
905 delete [] upar;
906 upar=NULL;
907 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
908 upar=new Double_t [3];
909 upar[0]=1.8;
910 upar[1]=2.2;
911
79575d04 912 //
c1637e41 913 //HV rods - makrolon + 0.58cm (diameter) Cu
ae4806ca 914 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
c1637e41 915 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
916 //
917 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
918 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
919 hvrv->AddNode(hvcv,1);
78134e48 920 //
921 // resistor rods
922 //
923 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
924 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
925 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
926 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
927 //
928 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
929 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
930 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
931 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
932 //
933 // ceramic rod with water
934 //
935 criv->AddNode(cwiv,1);
936 crov->AddNode(cwov,1);
937 //
938 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
939 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
940 //
941 // peek rod
942 //
943 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
944 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
945 //
946 // resistor rods assembly
947 //
be53328e 948 TGeoRotation *rotr = new TGeoRotation("rotr");
949 rotr->RotateZ(-21.);
78134e48 950 //
951 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
952 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
953 //
954 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
955 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
956 //
957 //
a3d2be59 958 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
959 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
960 rrin->AddNode(rriv,1);
961 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
962 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
963 rrin->AddNode(priv,1);
964 //
965 rrou->AddNode(rrov,1);
966 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
967 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
968 rrou->AddNode(prov,1);
7281dc07 969 for(Int_t i=0;i<18;i++){
c1637e41 970 Double_t angle,x,y;
971 Double_t z,r;
972 angle=TMath::DegToRad()*20.*(Double_t)i;
973 r=81.5;
974 x=r * TMath::Cos(angle);
975 y=r * TMath::Sin(angle);
976 upar[2]=126.64; //lower
977 z= 126.96;
78134e48 978 if(i==3){
be53328e 979 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
980 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 981 }
982 else {
983 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
984 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
c1637e41 985 }
78134e48 986
987 //
c1637e41 988 r=254.25;
989 x=r * TMath::Cos(angle);
990 y=r * TMath::Sin(angle);
991 upar[2]=126.54; //upper
992 z=127.06;
78134e48 993 //
994 if(i==15){
5042ab7d 995 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
996 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 997 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
998 }
999 else if(i==11){
be53328e 1000 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
1001 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 1002 }
1003 else{
1004 //
1005 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
1006 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
1007 }
c1637e41 1008 gGeoManager->Node("TPC_Rod",i+36,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
1009 gGeoManager->Node("TPC_Rod",i+54,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
1010 }
79575d04 1011
bde68ab0 1012 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
1013 alice->AddNode(v1,1);
37831078 1014
1015} // end of function
1016
37831078 1017
1018//_____________________________________________________________________________
1019void AliTPCv1::CreateMaterials()
1020{
1021 //
1022 // Define materials for Time Projection Chamber
1023 //
1024 AliTPC::CreateMaterials();
1025}
1026
1027//_____________________________________________________________________________
1028void AliTPCv1::Init()
fe4da5cc 1029{
1030 //
1031 // Initialises TPC detector after it has been created
1032 //
cfce8870 1033
c1637e41 1034 fIdSens=gMC->VolId("TPC_Strip"); // sensitive strip
fe4da5cc 1035
13a8c8d7 1036 printf("%s: *** TPC version 1 initialized***\n",ClassName());
1037
1038 // printf("TPC version 1 initialized\n");
fe4da5cc 1039}
1040
1041//_____________________________________________________________________________
1042void AliTPCv1::StepManager()
1043{
1044 //
1045 // Called at every step in the Time Projection Chamber
1046 //
0a6d8768 1047 Int_t copy, id, i;
e61fd20d 1048 Float_t hits[5];
fe4da5cc 1049 Int_t vol[2];
0a6d8768 1050 TLorentzVector p;
6a905708 1051 //
1283eee5 1052
c1637e41 1053 id = gMC->CurrentVolID(copy);
1054 if(id!=fIdSens) return;
0a6d8768 1055 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
37831078 1056
1057 //
1058 // Only charged tracks entering the sensitive volume
fe4da5cc 1059 //
37831078 1060
c1637e41 1061 gMC->TrackPosition(p);
1062 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1063 //
1064
1065 //
1066 Double_t angle = TMath::ACos(p[0]/r);
1067 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1068 //
1069 // angular segment, it is not a real sector number...
1070 //
1071 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1072 fTPCParam->GetInnerAngle());
1073 // rotate to segment "0"
1074 Float_t cos,sin;
1075 fTPCParam->AdjustCosSin(sector,cos,sin);
1076 Float_t x1 = p[0]*cos + p[1]*sin;
1077 Float_t y1 = TMath::Abs(-p[0]*sin + p[1]*cos);
1078 // calculate real sector number...
1079 if (x1>fTPCParam->GetOuterRadiusLow()){
1080 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1081 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1082 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
1083 }
1084 else
1085 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1086 //
1087 // here I have a sector number
1088 //
1089 vol[0]=sector;
1090 //
1091 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1092 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1093 // row numbers are autonomous for lower and upper sectors
1094 if(vol[0] > fTPCParam->GetNInnerSector()) {
1095 vol[1] -= fTPCParam->GetNRowLow();
1096 }
1097 Double_t range = (sector<36) ? fTPCParam->GetYInner(vol[1]) :
1098 fTPCParam->GetYOuter(vol[1]);
1099 if(y1>range) return;
1100 if(vol[1] == 0){
37831078 1101
1102 // because Jouri wants to have this
1103
1104 gMC->TrackMomentum(p);
1105 hits[0]=p[0];
1106 hits[1]=p[1];
1107 hits[2]=p[2];
1108 hits[3]=0.; // this hit has no energy loss
e61fd20d 1109 // Get also the track time for pileup simulation
1110 hits[4]=gMC->TrackTime();
1111
c1637e41 1112 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
1113 }
1114 gMC->TrackPosition(p);
37831078 1115 for(i=0;i<3;++i) hits[i]=p[i];
1116 hits[3]=1; //I'd like to have something positive here (I.Belikov)
e61fd20d 1117 // Get also the track time for pileup simulation
1118 hits[4]=gMC->TrackTime();
1119
c1637e41 1120 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
37831078 1121
c1637e41 1122 }// track entering sensitive strip
37831078 1123
fe4da5cc 1124}
37831078 1125//_____________________________________________________________________________
1283eee5 1126
1127
1128