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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/* $Id$ */
73042f01 17//
4c039060 18
fe4da5cc 19///////////////////////////////////////////////////////////////////////////////
20// //
21// Time Projection Chamber version 0 -- "coarse" TPC //
22// //
23//Begin_Html
24/*
1439f98e 25<img src="picts/AliTPCv0Class.gif">
fe4da5cc 26*/
27//End_Html
28// //
29// //
30///////////////////////////////////////////////////////////////////////////////
31
88cb7938 32#include <Riostream.h>
33
88cb7938 34#include <TMath.h>
88cb7938 35#include <TVirtualMC.h>
d9e80aca 36#include <TString.h>
37#include <TSystem.h>
fe4da5cc 38
88cb7938 39#include "AliConst.h"
40#include "AliRun.h"
cc80f89e 41#include "AliTPCDigitsArray.h"
88cb7938 42#include "AliTPCParamSR.h"
43#include "AliTPCv0.h"
c1637e41 44#include "TGeoManager.h"
45#include "TGeoVolume.h"
46#include "TGeoPcon.h"
47#include "TGeoTube.h"
48#include "TGeoPgon.h"
49#include "TGeoTrd1.h"
50#include "TGeoCompositeShape.h"
51#include "TGeoPara.h"
fe4da5cc 52ClassImp(AliTPCv0)
53
54//_____________________________________________________________________________
55AliTPCv0::AliTPCv0(const char *name, const char *title)
56 :AliTPC(name, title)
57{
58 //
59 // Standard creator for TPC version 0
60 //
73042f01 61
73042f01 62
63 if (fTPCParam)
64 fTPCParam->Write(fTPCParam->GetTitle());
fe4da5cc 65}
66
67//_____________________________________________________________________________
68void AliTPCv0::CreateGeometry()
69{
79575d04 70
fe4da5cc 71 //
37831078 72 // Creation of the TPC version 0, i.e. no sensitive volumes,
73 // only the material distribution
fe4da5cc 74 //
75 //Begin_Html
76 /*
37831078 77 <img src="picts/AliTPC.gif">
fe4da5cc 78 */
79 //End_Html
80 //Begin_Html
81 /*
1439f98e 82 <img src="picts/AliTPCv0Tree.gif">
fe4da5cc 83 */
84 //End_Html
85
c1637e41 86 //----------------------------------------------------------
87 // This geometry is written using TGeo class
88 // Firstly the shapes are defined, and only then the volumes
89 // What is recognized by the MC are volumes
90 //----------------------------------------------------------
91 //
92 // tpc - this will be the mother volume
37831078 93 //
1283eee5 94
37831078 95 //
c1637e41 96 // here I define a volume TPC
97 // retrive the medium name with "TPC_" as a leading string
37831078 98 //
8ad31ee5 99 TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections
37831078 100 //
8ad31ee5 101 tpc->DefineSection(0,-289.6,77.,278.);
102 tpc->DefineSection(1,-262.1,77.,278.);
37831078 103 //
8ad31ee5 104 tpc->DefineSection(2,-262.1,83.1,278.);
105 tpc->DefineSection(3,-260.,83.1,278.);
37831078 106 //
8ad31ee5 107 tpc->DefineSection(4,-260.,70.,278.);
108 tpc->DefineSection(5,-259.6,70.,278.);
37831078 109 //
8ad31ee5 110 tpc->DefineSection(6,-259.6,68.1,278.);
111 tpc->DefineSection(7,-253.6,68.1,278.);
37831078 112 //
8ad31ee5 113 tpc->DefineSection(8,-253.6,68.,278.);
114 tpc->DefineSection(9,-74.0,60.8,278.);
37831078 115 //
8ad31ee5 116 tpc->DefineSection(10,-74.0,60.1,278.);
117 tpc->DefineSection(11,-73.3,60.1,278.);
37831078 118 //
8ad31ee5 119 tpc->DefineSection(12,-73.3,56.9,278.);
120 tpc->DefineSection(13,-68.5,56.9,278.);
37831078 121 //
8ad31ee5 122 tpc->DefineSection(14,-68.5,60.,278.);
123 tpc->DefineSection(15,-64.7,60.,278.);
78134e48 124 //
8ad31ee5 125 tpc->DefineSection(16,-64.7,56.9,278.);
126 tpc->DefineSection(17,73.3,56.9,278.);
78134e48 127 //
8ad31ee5 128 tpc->DefineSection(18,73.3,60.1,278.);
129 tpc->DefineSection(19,74.0,60.1,278.);
130 tpc->DefineSection(20,74.0,60.8,278.);
131 tpc->DefineSection(21,253.6,65.5,278.);
4fb9bd37 132 //
8ad31ee5 133 tpc->DefineSection(22,253.6,65.6,278.);
134 tpc->DefineSection(23,259.6,65.6,278.);
4fb9bd37 135 //
8ad31ee5 136 tpc->DefineSection(24,259.6,70.0,278.);
137 tpc->DefineSection(25,260.,70.0,278.);
4fb9bd37 138 //
8ad31ee5 139 tpc->DefineSection(26,260.,83.1,278.);
140 tpc->DefineSection(27,262.1,83.1,278.);
4fb9bd37 141 //
8ad31ee5 142 tpc->DefineSection(28,262.1,77.,278);
143 tpc->DefineSection(29,289.6,77.,278.);
37831078 144 //
c1637e41 145 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
146 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
37831078 147 //
c1637e41 148 // drift volume - sensitive volume, extended beyond the
149 // endcaps, because of the alignment
37831078 150 //
c1637e41 151 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
152 dvol->DefineSection(0,-260.,74.5,264.4);
153 dvol->DefineSection(1,-253.6,74.5,264.4);
79575d04 154 //
c1637e41 155 dvol->DefineSection(2,-253.6,76.6774,258.);
156 dvol->DefineSection(3,253.6,76.6774,258.);
37831078 157 //
c1637e41 158 dvol->DefineSection(4,253.6,74.5,264.4);
159 dvol->DefineSection(5,260.,74.5,264.4);
37831078 160 //
f3d601a5 161 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-1");
c1637e41 162 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
37831078 163 //
c1637e41 164 v1->AddNode(v9,1);
37831078 165 //
c1637e41 166 // outer insulator
37831078 167 //
c1637e41 168 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
37831078 169 //
c1637e41 170 tpco->DefineSection(0,-256.6,264.8,278.);
171 tpco->DefineSection(1,-253.6,264.8,278.);
720b23b8 172 //
c1637e41 173 tpco->DefineSection(2,-253.6,258.,278.);
174 tpco->DefineSection(3,250.6,258.,278.);
79575d04 175 //
c1637e41 176 tpco->DefineSection(4,250.6,258.,275.5);
177 tpco->DefineSection(5,253.6,258.,275.5);
178 //
179 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
180 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
181 //
182 // outer containment vessel
183 //
184 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
185 //
186 tocv->DefineSection(0,-256.6,264.8,278.);
187 tocv->DefineSection(1,-253.6,264.8,278.);
188 //
189 tocv->DefineSection(2,-253.6,274.8124,278.);
190 tocv->DefineSection(3,247.6,274.8124,278.);
191 //
192 tocv->DefineSection(4,247.6,270.4,278.);
193 tocv->DefineSection(5,250.6,270.4,278.);
194 //
195 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
196 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
197 //
198 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
199 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
200 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
201 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
202 //
203 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
204 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
205 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
206 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
207 //
208 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
209 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
210 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
211 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
37831078 212 //-------------------------------------------------------
213 // Tpc Outer Field Cage
c1637e41 214 // daughters - composite (sandwich)
37831078 215 //-------------------------------------------------------
216
c1637e41 217 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
79575d04 218 //
c1637e41 219 tofc->DefineSection(0,-253.6,258.,269.6);
220 tofc->DefineSection(1,-250.6,258.,269.6);
37831078 221 //
c1637e41 222 tofc->DefineSection(2,-250.6,258.,260.0676);
223 tofc->DefineSection(3,250.6,258.,260.0676);
37831078 224 //
c1637e41 225 tofc->DefineSection(4,250.6,258.,275.5);
226 tofc->DefineSection(5,253.6,258.,275.5);
37831078 227 //
c1637e41 228 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
229 //sandwich
230 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
231 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
232 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
37831078 233 //
c1637e41 234 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
37831078 235 //
c1637e41 236 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
237 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
238 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
1283eee5 239 //
c1637e41 240 // outer part - positioning
37831078 241 //
c1637e41 242 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
37831078 243 //
c1637e41 244 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
1283eee5 245 //
456cb019 246 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
1283eee5 247 //
c1637e41 248 v2->AddNode(v3,1); v2->AddNode(v4,1);
37831078 249 //
c1637e41 250 v1->AddNode(v2,1);
251 //-----------------------------------------------------------
252 //--------------------------------------------------------------------
253 // Tpc Inner INsulator (CO2)
254 // the cones, the central drum and the inner f.c. sandwich with a piece
255 // of the flane will be placed in the TPC
256 //--------------------------------------------------------------------
257 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
37831078 258 //
c1637e41 259 tpci->DefineSection(0,-253.6,68.4,76.6774);
260 tpci->DefineSection(1,-74.0,61.2,76.6774);
37831078 261 //
c1637e41 262 tpci->DefineSection(2,74.0,61.2,76.6774);
37831078 263 //
c1637e41 264 tpci->DefineSection(3,253.6,65.9,76.6774);
37831078 265 //
c1637e41 266 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
37831078 267 //
c1637e41 268 // now the inner field cage - only part of flanges (2 copies)
37831078 269 //
c1637e41 270 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
271 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
37831078 272 //
c1637e41 273 //---------------------------------------------------------
274 // Tpc Inner Containment vessel - Muon side
79575d04 275 //---------------------------------------------------------
c1637e41 276 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
37831078 277 //
c1637e41 278 tcms->DefineSection(0,-259.1,68.1,74.2);
279 tcms->DefineSection(1,-253.6,68.1,74.2);
37831078 280 //
c1637e41 281 tcms->DefineSection(2,-253.6,68.1,68.4);
282 tcms->DefineSection(3,-74.0,60.9,61.2);
37831078 283 //
c1637e41 284 tcms->DefineSection(4,-74.0,60.1,61.2);
285 tcms->DefineSection(5,-73.3,60.1,61.2);
37831078 286 //
c1637e41 287 tcms->DefineSection(6,-73.3,56.9,61.2);
288 tcms->DefineSection(7,-73.0,56.9,61.2);
37831078 289 //
c1637e41 290 tcms->DefineSection(8,-73.0,56.9,58.8);
291 tcms->DefineSection(9,-71.3,56.9,58.8);
37831078 292 //
c1637e41 293 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
294 //-----------------------------------------------
295 // inner containment vessel - shaft side
296 //-----------------------------------------------
297 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
37831078 298 //
c1637e41 299 tcss->DefineSection(0,71.3,56.9,58.8);
300 tcss->DefineSection(1,73.0,56.9,58.8);
37831078 301 //
c1637e41 302 tcss->DefineSection(2,73.0,56.9,61.2);
303 tcss->DefineSection(3,73.3,56.9,61.2);
304 //
305 tcss->DefineSection(4,73.3,60.1,61.2);
306 tcss->DefineSection(5,74.0,60.1,61.2);
37831078 307 //
c1637e41 308 tcss->DefineSection(6,74.0,60.9,61.2);
309 tcss->DefineSection(7,253.6,65.6,65.9);
37831078 310 //
c1637e41 311 tcss->DefineSection(8,253.6,65.6,74.2);
312 tcss->DefineSection(9,258.1,65.6,74.2);
37831078 313 //
c1637e41 314 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
315 //-----------------------------------------------
316 // Inner field cage
317 // define 4 parts and make an assembly
318 //-----------------------------------------------
319 // part1 - Al - 2 copies
320 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
321 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
322 // sandwich - outermost parts - 2 copies
323 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
324 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
325 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
326 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
37831078 327 //
c1637e41 328 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
329 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
330 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
331 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
37831078 332 //
c1637e41 333 // middle parts - 2 copies
334 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
335 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
336 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
337 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
79575d04 338 //
c1637e41 339 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
340 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
341 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
342 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
343 // central part - 1 copy
344 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
345 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
346 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
79575d04 347 //
c1637e41 348 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
349 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
350 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
79575d04 351 //
c1637e41 352 // inner part - positioning
79575d04 353 //
c1637e41 354 // creating a sandwich
355 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
79575d04 356 //
c1637e41 357 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
79575d04 358 //
c1637e41 359 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
37831078 360 //
c1637e41 361 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
37831078 362 //
c1637e41 363 tv100->AddNode(tv10,1);
364 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
365 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
366 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
367 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
368 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
369 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
370 //
371 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
372 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
373 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
374 v9->AddNode(tv100,1);
375 //
376 // central drum
377 //
378 // flange + sandwich
379 //
380 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
381 cfl->DefineSection(0,-71.1,59.7,61.2);
382 cfl->DefineSection(1,-68.6,59.7,61.2);
383 //
384 cfl->DefineSection(2,-68.6,60.6324,61.2);
385 cfl->DefineSection(3,68.6,60.6324,61.2);
386 //
387 cfl->DefineSection(4,68.6,59.7,61.2);
388 cfl->DefineSection(5,71.1,59.7,61.2);
389 //
390 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
391 // sandwich
392 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
393 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
394 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
395 //
396 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
397 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
398 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
399 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
400 //
401 // seals for central drum 2 copies
402 //
403 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
404 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
405 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 406 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
407 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 408 //
409 // seal collars
410 TGeoPcon *se = new TGeoPcon(0.,360.,6);
411 se->DefineSection(0,-72.8,59.7,61.2);
412 se->DefineSection(1,-72.3,59.7,61.2);
413 //
414 se->DefineSection(2,-72.3,58.85,61.2);
415 se->DefineSection(3,-71.6,58.85,61.2);
416 //
417 se->DefineSection(4,-71.6,59.7,61.2);
418 se->DefineSection(5,-71.3,59.7,61.2);
419 //
420 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
421 //
422 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
423 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
424 //
425 // define reflection matrix
426 //
4fa47888 427 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 428 //
429 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
430 //
a1ec4d07 431 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
432 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 433 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
434 //
435 // central membrane - 2 rings and a mylar membrane - assembly
436 //
437 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
438 TGeoTube *oh = new TGeoTube(250.,256.,.5);
439 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
440 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
441 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
442 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
443 //
444 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
445 cm->AddNode(ihv,1);
446 cm->AddNode(ohv,1);
447 cm->AddNode(memv,1);
448 v9->AddNode(cm,1);
449 //
450 // end caps - they are make as an assembly of single segments
451 // containing both readout chambers
452 //
d899e254 453 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 454 Double_t thick=1.5; // rib
d899e254 455 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 456 //
d899e254 457 Double_t lowEdge = 86.3; // hole in the wheel
458 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 459 //
460 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
461 //
462 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
463 //
d899e254 464 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
465 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 466 //
d899e254 467 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
468 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 469 //
d899e254 470 Double_t ys = shift*TMath::Sin(openingAngle);
471 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 472 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
473 tr->RegisterYourself();
474 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
475 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
476 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
477 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
478 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
479 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
480 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
481 //
482 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
483 //
484 // readout chambers
485 //
486 // IROC first
487 //
488 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
489 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
37831078 490 // empty space
c1637e41 491 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
492 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
493 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
494 //bars
495 Double_t tga = (19.8328-12.3742)/39.3;
496 Double_t xmin,xmax;
497 xmin = 9.55*tga+12.3742;
498 xmax = 9.95*tga+12.3742;
499 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
500 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
501 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
502 xmin=19.4*tga+12.3742;
503 xmax=19.9*tga+12.3742;
504 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
505 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
506 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
507 xmin=29.35*tga+12.3742;
508 xmax=29.75*tga+12.3742;
509 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
510 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
511 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
512 //
513 // holes for connectors
514 //
515 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
516 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 517 TString fileName(gSystem->Getenv("ALICE_ROOT"));
518 fileName += "/TPC/conn_iroc.dat";
c1637e41 519 ifstream in;
d9e80aca 520 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 521 for(Int_t i =0;i<86;i++){
456cb019 522 Double_t y = 3.99;
c1637e41 523 Double_t x,z,ang;
524 in>>x>>z>>ang;
456cb019 525 z-=26.5;
c1637e41 526 TGeoRotation *rrr = new TGeoRotation();
527 rrr->RotateY(ang);
528 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
529 ibdv->AddNode(connv,i+1,trans);
530 }
531 in.close();
532 // "cap"
533 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
534 // "hole"
535 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
536 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
537 tr1->RegisterYourself();
538 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
539 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
540 //
541 // pad plane and wire fixations
542 //
543 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
544 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
545 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
546 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
547 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
548 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
549 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
550 //
551 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
552 //
553 iroc->AddNode(ibdv,1);
554 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
555 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
556 tga =(23.3521-14.5974)/49.65;
557 Double_t xx = 24.825*tga+14.5974-0.6;
558 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
559 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
560 //
561 // OROC
562 //
563 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
564 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
565 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
566 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
567 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
568 //horizontal bars
569 tga=(38.5084-20.2938)/99.3;
570 xmin=tga*10.2+20.2938;
571 xmax=tga*10.6+20.2938;
572 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
573 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
574 //
575 xmin=22.55*tga+20.2938;
576 xmax=24.15*tga+20.2938;
577 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
578 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
579 //
580 xmin=36.1*tga+20.2938;
581 xmax=36.5*tga+20.2938;
582 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
583 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
584 //
585 xmin=49.0*tga+20.2938;
586 xmax=50.6*tga+20.2938;
587 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
588 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
589 //
590 xmin=63.6*tga+20.2938;
591 xmax=64.0*tga+20.2938;
592 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
593 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
594 //
595 xmin=75.5*tga+20.2938;
596 xmax=77.15*tga+20.2938;
597 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
598 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
599 //
600 xmin=88.7*tga+20.2938;
601 xmax=89.1*tga+20.2938;
602 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
603 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
604 //
605 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
606 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
607 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
608 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
609 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
610 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
611 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
612 // vertical bars
613 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
614 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
615 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
616 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
617 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
618 //
619 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
620 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
621 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
622 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
623 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
624 //
625 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
626 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
627 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
628 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
629 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
630 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
631 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
632 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
633 //
634 // holes for connectors
635 //
d9e80aca 636 fileName = gSystem->Getenv("ALICE_ROOT");
637 fileName += "/TPC/conn_oroc.dat";
638 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 639 for(Int_t i =0;i<78;i++){
640 Double_t y =3.89;
641 Double_t x,z,ang;
642 Double_t x1,z1,x2,z2;
643 in>>x>>z>>ang;
644 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
645 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
646 //
647 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
648 //
649 TGeoRotation *rr = new TGeoRotation();
650 rr->RotateY(ang);
651 z1-=54.95;
652 z2-=54.95;
653 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
654 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
655 obdv->AddNode(connv,i+1,trans1);
656 obdv->AddNode(connv,i+79,trans2);
657 }
658 in.close();
659 // cap
660 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
661 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
662 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
663 tr5->RegisterYourself();
664 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
665 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
666 //
667 // pad plane and wire fixations
668 //
669 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
670 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
671 //
672 tga=(43.5239-23.3874)/114.2;
673 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
674 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
675 xx = 57.1*tga+23.3874-0.7;
676 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
677 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
678 //
679 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
680 //
681 oroc->AddNode(obdv,1);
682 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
683 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
684 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
685 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
686 //
687 // now iroc and oroc are placed into a sector...
688 //
a1ec4d07 689 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
690 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
691 //
1fba9945 692
c1637e41 693 TGeoRotation rot1("rot1",90.,90.,0.);
694 TGeoRotation rot2("rot2");
695 rot2.RotateY(10.);
696 TGeoRotation *rot = new TGeoRotation("rot");
697 *rot=rot1*rot2;
698 //
699 Double_t x0,y0;
d899e254 700 x0=110.2*TMath::Cos(openingAngle);
701 y0=110.2*TMath::Sin(openingAngle);
20527578 702 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
703 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 704 x0=188.45*TMath::Cos(openingAngle);
705 y0=188.45*TMath::Sin(openingAngle);
20527578 706 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
707 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
a1ec4d07 708 //
709 // A-side
710 //
711 secta->AddNode(ch,1);
712 secta->AddNode(iroc,1,combi1a);
713 secta->AddNode(oroc,1,combi2a);
714 //
715 // C-side
c1637e41 716 //
a1ec4d07 717 sectc->AddNode(ch,1);
718 sectc->AddNode(iroc,1,combi1c);
719 sectc->AddNode(oroc,1,combi2c);
c1637e41 720 //
a1ec4d07 721 // now I try to make wheels...
c1637e41 722 //
a1ec4d07 723 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
724 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 725 //
726 for(Int_t i =0;i<18;i++){
727 Double_t phi = (20.*i);
728 TGeoRotation *r = new TGeoRotation();
729 r->RotateZ(phi);
a1ec4d07 730 wheela->AddNode(secta,i+1,r);
731 wheelc->AddNode(sectc,i+1,r);
c1637e41 732 }
733 // wheels in the drift volume!
c1637e41 734 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 735 v9->AddNode(wheela,1,combi3);
736 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 737 //_____________________________________________________________
738 // service support wheel
739 //_____________________________________________________________
740 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
741 sw->DefineSection(0,-4.,80.5,251.75);
742 sw->DefineSection(1,4.,80.5,251.75);
743 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
744 //
745 thick=1.;
d899e254 746 shift = thick/TMath::Sin(openingAngle);
c1637e41 747 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
748 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
749 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
750 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
751 //
74518339 752 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
753 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
754 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
755 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
756 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
757 //
758 shv->AddNode(elv,1);
759 //
760 //
d899e254 761 ys = shift*TMath::Sin(openingAngle);
762 xs = shift*TMath::Cos(openingAngle);
c1637e41 763 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
764 // cover
765 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
766 co->DefineSection(0,-0.5,77.,255.25);
767 co->DefineSection(1,0.5,77.,255.25);
768 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
769 // hole in a cover
770 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 771 shift=4./TMath::Sin(openingAngle);
c1637e41 772 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
773 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
774 //
775 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
776 //
d899e254 777 ys = shift*TMath::Sin(openingAngle);
778 xs = shift*TMath::Cos(openingAngle);
c1637e41 779 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
780 //
781 // Sector as an Assembly
782 //
783 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
784 swhs->AddNode(swv,1);
785 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
786 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
787 //
788 // SSW as an Assembly of sectors
789 //
790 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
791 for(Int_t i =0;i<18;i++){
792 Double_t phi = (20.*i);
793 TGeoRotation *r = new TGeoRotation();
794 r->RotateZ(phi);
795 swheel->AddNode(swhs,i+1,r);
796 }
797 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
798 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
799 //
37831078 800 //----------------------------------------------------------
801 // TPc Support Rods - MAKROLON
802 //----------------------------------------------------------
c1637e41 803 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
804 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 805 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
806 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
807 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
c1637e41 808 // upper and lower rods differ in length!
809 Double_t *upar;
810 upar=NULL;
811 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
812 upar=new Double_t [3];
813 upar[0]=1.8;
814 upar[1]=2.2;
815
816 //
817 //HV rods - makrolon + 0.58cm (diameter) Cu
ae4806ca 818 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
c1637e41 819 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
820 //
821 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
822 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
823 hvrv->AddNode(hvcv,1);
78134e48 824 //
825 // resistor rods
826 //
827 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
828 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
829 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
830 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
831 //
832 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
833 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
834 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
835 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
836 //
837 // ceramic rod with water
838 //
839 criv->AddNode(cwiv,1);
840 crov->AddNode(cwov,1);
841 //
842 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
843 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
844 //
845 // peek rod
846 //
847 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
848 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
849 //
850 // resistor rods assembly
851 //
be53328e 852 TGeoRotation *rotr = new TGeoRotation("rotr");
853 rotr->RotateZ(-21.);
78134e48 854 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
855 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
856 //
857 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
858 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
859 //
a3d2be59 860 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
861 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
862 rrin->AddNode(rriv,1);
863 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
864 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
865 rrin->AddNode(priv,1);
866 //
867 rrou->AddNode(rrov,1);
868 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
869 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
870 rrou->AddNode(prov,1);
7281dc07 871 for(Int_t i=0;i<18;i++){
c1637e41 872 Double_t angle,x,y;
873 Double_t z,r;
874 angle=TMath::DegToRad()*20.*(Double_t)i;
875 r=81.5;
876 x=r * TMath::Cos(angle);
877 y=r * TMath::Sin(angle);
878 upar[2]=126.64; //lower
879 z= 126.96;
78134e48 880 if(i==3){
be53328e 881 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
882 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 883 }
884 else {
885 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
886 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
c1637e41 887 }
78134e48 888
889
890 //
c1637e41 891 r=254.25;
892 x=r * TMath::Cos(angle);
893 y=r * TMath::Sin(angle);
894 upar[2]=126.54; //upper
895 z=127.06;
78134e48 896 //
897 if(i==15){
5042ab7d 898 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
899 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 900 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
901 }
902 else if(i==11){
be53328e 903 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
904 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 905 }
906 else{
907 //
908 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
909 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
910 }
911
37831078 912 }
913
bde68ab0 914 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
915 alice->AddNode(v1,1);
916
79575d04 917
1283eee5 918} // end of function
919
fe4da5cc 920
921//_____________________________________________________________________________
922void AliTPCv0::CreateMaterials()
923{
924 //
925 // Define materials for the TPC
926 //
927 AliTPC::CreateMaterials();
928}
929
fe4da5cc 930
931//_____________________________________________________________________________
932void AliTPCv0::Init()
933{
934 //
935 // Initialise Time Projection Chamber version 0
936 //
13a8c8d7 937
938 printf("%s: *** TPC version 0 initialized***\n",ClassName());
939
940 // printf("TPC version 0 initialized\n");
fe4da5cc 941}
942
943//_____________________________________________________________________________
944void AliTPCv0::StepManager()
945{
946 //
947 // Procedure called at each step in the TPC
948 //
949}