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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"
c5d5037c 47#include "TGeoCone.h"
c1637e41 48#include "TGeoTube.h"
49#include "TGeoPgon.h"
50#include "TGeoTrd1.h"
51#include "TGeoCompositeShape.h"
52#include "TGeoPara.h"
a11596ad 53
54using std::ifstream;
55using std::ios_base;
fe4da5cc 56ClassImp(AliTPCv0)
57
58//_____________________________________________________________________________
59AliTPCv0::AliTPCv0(const char *name, const char *title)
60 :AliTPC(name, title)
61{
62 //
63 // Standard creator for TPC version 0
64 //
73042f01 65
73042f01 66
67 if (fTPCParam)
68 fTPCParam->Write(fTPCParam->GetTitle());
fe4da5cc 69}
70
71//_____________________________________________________________________________
c5d5037c 72
fe4da5cc 73void AliTPCv0::CreateGeometry()
74{
79575d04 75
fe4da5cc 76 //
37831078 77 // Creation of the TPC version 0, i.e. no sensitive volumes,
78 // only the material distribution
fe4da5cc 79 //
80 //Begin_Html
81 /*
37831078 82 <img src="picts/AliTPC.gif">
fe4da5cc 83 */
84 //End_Html
85 //Begin_Html
86 /*
1439f98e 87 <img src="picts/AliTPCv0Tree.gif">
fe4da5cc 88 */
89 //End_Html
90
c1637e41 91 //----------------------------------------------------------
92 // This geometry is written using TGeo class
93 // Firstly the shapes are defined, and only then the volumes
94 // What is recognized by the MC are volumes
95 //----------------------------------------------------------
96 //
97 // tpc - this will be the mother volume
37831078 98 //
1283eee5 99
37831078 100 //
c1637e41 101 // here I define a volume TPC
102 // retrive the medium name with "TPC_" as a leading string
37831078 103 //
8ad31ee5 104 TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections
37831078 105 //
8ad31ee5 106 tpc->DefineSection(0,-289.6,77.,278.);
107 tpc->DefineSection(1,-262.1,77.,278.);
37831078 108 //
8ad31ee5 109 tpc->DefineSection(2,-262.1,83.1,278.);
110 tpc->DefineSection(3,-260.,83.1,278.);
37831078 111 //
8ad31ee5 112 tpc->DefineSection(4,-260.,70.,278.);
113 tpc->DefineSection(5,-259.6,70.,278.);
37831078 114 //
8ad31ee5 115 tpc->DefineSection(6,-259.6,68.1,278.);
116 tpc->DefineSection(7,-253.6,68.1,278.);
37831078 117 //
c5d5037c 118 tpc->DefineSection(8,-253.6,67.88,278.);//hs
119 tpc->DefineSection(9,-74.0,60.68,278.);// hs
37831078 120 //
8ad31ee5 121 tpc->DefineSection(10,-74.0,60.1,278.);
122 tpc->DefineSection(11,-73.3,60.1,278.);
37831078 123 //
8ad31ee5 124 tpc->DefineSection(12,-73.3,56.9,278.);
125 tpc->DefineSection(13,-68.5,56.9,278.);
37831078 126 //
8ad31ee5 127 tpc->DefineSection(14,-68.5,60.,278.);
128 tpc->DefineSection(15,-64.7,60.,278.);
78134e48 129 //
8ad31ee5 130 tpc->DefineSection(16,-64.7,56.9,278.);
131 tpc->DefineSection(17,73.3,56.9,278.);
78134e48 132 //
8ad31ee5 133 tpc->DefineSection(18,73.3,60.1,278.);
134 tpc->DefineSection(19,74.0,60.1,278.);
c5d5037c 135 //
136 tpc->DefineSection(20,74.0,60.68,278.);// hs
137 tpc->DefineSection(21,253.6,65.38,278.);// hs
4fb9bd37 138 //
8ad31ee5 139 tpc->DefineSection(22,253.6,65.6,278.);
140 tpc->DefineSection(23,259.6,65.6,278.);
4fb9bd37 141 //
8ad31ee5 142 tpc->DefineSection(24,259.6,70.0,278.);
143 tpc->DefineSection(25,260.,70.0,278.);
4fb9bd37 144 //
8ad31ee5 145 tpc->DefineSection(26,260.,83.1,278.);
146 tpc->DefineSection(27,262.1,83.1,278.);
4fb9bd37 147 //
8ad31ee5 148 tpc->DefineSection(28,262.1,77.,278);
149 tpc->DefineSection(29,289.6,77.,278.);
37831078 150 //
c1637e41 151 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
152 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
37831078 153 //
c1637e41 154 // drift volume - sensitive volume, extended beyond the
155 // endcaps, because of the alignment
37831078 156 //
c1637e41 157 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
158 dvol->DefineSection(0,-260.,74.5,264.4);
159 dvol->DefineSection(1,-253.6,74.5,264.4);
79575d04 160 //
c1637e41 161 dvol->DefineSection(2,-253.6,76.6774,258.);
162 dvol->DefineSection(3,253.6,76.6774,258.);
37831078 163 //
c1637e41 164 dvol->DefineSection(4,253.6,74.5,264.4);
165 dvol->DefineSection(5,260.,74.5,264.4);
37831078 166 //
f3d601a5 167 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-1");
c1637e41 168 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
37831078 169 //
c1637e41 170 v1->AddNode(v9,1);
37831078 171 //
c1637e41 172 // outer insulator
37831078 173 //
c1637e41 174 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
37831078 175 //
c1637e41 176 tpco->DefineSection(0,-256.6,264.8,278.);
177 tpco->DefineSection(1,-253.6,264.8,278.);
720b23b8 178 //
c1637e41 179 tpco->DefineSection(2,-253.6,258.,278.);
180 tpco->DefineSection(3,250.6,258.,278.);
79575d04 181 //
c1637e41 182 tpco->DefineSection(4,250.6,258.,275.5);
183 tpco->DefineSection(5,253.6,258.,275.5);
184 //
185 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
186 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
187 //
188 // outer containment vessel
189 //
190 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
191 //
192 tocv->DefineSection(0,-256.6,264.8,278.);
193 tocv->DefineSection(1,-253.6,264.8,278.);
194 //
195 tocv->DefineSection(2,-253.6,274.8124,278.);
196 tocv->DefineSection(3,247.6,274.8124,278.);
197 //
198 tocv->DefineSection(4,247.6,270.4,278.);
199 tocv->DefineSection(5,250.6,270.4,278.);
200 //
201 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
202 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
203 //
204 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
205 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
206 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
207 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
208 //
209 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
210 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
211 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
212 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
213 //
214 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
215 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
216 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
217 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
c5d5037c 218 TGeoMedium *mhs = gGeoManager->GetMedium("TPC_Steel");
219 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
37831078 220 //-------------------------------------------------------
221 // Tpc Outer Field Cage
c1637e41 222 // daughters - composite (sandwich)
37831078 223 //-------------------------------------------------------
224
c1637e41 225 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
79575d04 226 //
c1637e41 227 tofc->DefineSection(0,-253.6,258.,269.6);
228 tofc->DefineSection(1,-250.6,258.,269.6);
37831078 229 //
c1637e41 230 tofc->DefineSection(2,-250.6,258.,260.0676);
231 tofc->DefineSection(3,250.6,258.,260.0676);
37831078 232 //
c1637e41 233 tofc->DefineSection(4,250.6,258.,275.5);
234 tofc->DefineSection(5,253.6,258.,275.5);
37831078 235 //
c1637e41 236 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
237 //sandwich
238 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
239 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
240 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
37831078 241 //
c1637e41 242 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
37831078 243 //
c1637e41 244 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
245 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
246 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
1283eee5 247 //
c1637e41 248 // outer part - positioning
37831078 249 //
c1637e41 250 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
37831078 251 //
c1637e41 252 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
1283eee5 253 //
456cb019 254 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
1283eee5 255 //
c1637e41 256 v2->AddNode(v3,1); v2->AddNode(v4,1);
37831078 257 //
c1637e41 258 v1->AddNode(v2,1);
259 //-----------------------------------------------------------
260 //--------------------------------------------------------------------
261 // Tpc Inner INsulator (CO2)
262 // the cones, the central drum and the inner f.c. sandwich with a piece
263 // of the flane will be placed in the TPC
264 //--------------------------------------------------------------------
265 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
37831078 266 //
c1637e41 267 tpci->DefineSection(0,-253.6,68.4,76.6774);
268 tpci->DefineSection(1,-74.0,61.2,76.6774);
37831078 269 //
c1637e41 270 tpci->DefineSection(2,74.0,61.2,76.6774);
37831078 271 //
c1637e41 272 tpci->DefineSection(3,253.6,65.9,76.6774);
37831078 273 //
c1637e41 274 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
37831078 275 //
c1637e41 276 // now the inner field cage - only part of flanges (2 copies)
37831078 277 //
c1637e41 278 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
279 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
37831078 280 //
c1637e41 281 //---------------------------------------------------------
282 // Tpc Inner Containment vessel - Muon side
79575d04 283 //---------------------------------------------------------
c1637e41 284 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
37831078 285 //
c1637e41 286 tcms->DefineSection(0,-259.1,68.1,74.2);
287 tcms->DefineSection(1,-253.6,68.1,74.2);
37831078 288 //
c1637e41 289 tcms->DefineSection(2,-253.6,68.1,68.4);
290 tcms->DefineSection(3,-74.0,60.9,61.2);
37831078 291 //
c1637e41 292 tcms->DefineSection(4,-74.0,60.1,61.2);
293 tcms->DefineSection(5,-73.3,60.1,61.2);
37831078 294 //
c1637e41 295 tcms->DefineSection(6,-73.3,56.9,61.2);
296 tcms->DefineSection(7,-73.0,56.9,61.2);
37831078 297 //
c1637e41 298 tcms->DefineSection(8,-73.0,56.9,58.8);
299 tcms->DefineSection(9,-71.3,56.9,58.8);
37831078 300 //
c1637e41 301 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
c5d5037c 302 //------------------------------------------------
303 // Heat screen muon side
304 //------------------------------------------------
305
306 TGeoCone *thsm = new TGeoCone(89.8,67.88,68.1,60.68,60.9);
307 TGeoCone *thsmw = new TGeoCone(89.8,67.94,68.04,60.74,60.84);
308 TGeoVolume *hvsm = new TGeoVolume("TPC_HSM",thsm,mhs); //steel
309 TGeoVolume *hvsmw = new TGeoVolume("TPC_HSMW",thsmw,m12); //water
310 // assembly heat screen muon
311 hvsm->AddNode(hvsmw,1);
c1637e41 312 //-----------------------------------------------
313 // inner containment vessel - shaft side
314 //-----------------------------------------------
315 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
37831078 316 //
c1637e41 317 tcss->DefineSection(0,71.3,56.9,58.8);
318 tcss->DefineSection(1,73.0,56.9,58.8);
37831078 319 //
c1637e41 320 tcss->DefineSection(2,73.0,56.9,61.2);
321 tcss->DefineSection(3,73.3,56.9,61.2);
322 //
323 tcss->DefineSection(4,73.3,60.1,61.2);
324 tcss->DefineSection(5,74.0,60.1,61.2);
37831078 325 //
c1637e41 326 tcss->DefineSection(6,74.0,60.9,61.2);
327 tcss->DefineSection(7,253.6,65.6,65.9);
37831078 328 //
c1637e41 329 tcss->DefineSection(8,253.6,65.6,74.2);
330 tcss->DefineSection(9,258.1,65.6,74.2);
37831078 331 //
c1637e41 332 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
c5d5037c 333 //-------------------------------------------------
334 // Heat screen shaft side
335 //--------------------------------------------------
336 TGeoCone *thss = new TGeoCone(89.8,60.68,60.9,65.38,65.6);
337 TGeoCone *thssw = new TGeoCone(89.8,60.74,60.84,65.44,65.54);
338 TGeoVolume *hvss = new TGeoVolume("TPC_HSS",thss,mhs); //steel
339 TGeoVolume *hvssw = new TGeoVolume("TPC_HSSW",thssw,m12); //water
340 //assembly heat screen shaft
341 hvss->AddNode(hvssw,1);
c1637e41 342 //-----------------------------------------------
343 // Inner field cage
344 // define 4 parts and make an assembly
345 //-----------------------------------------------
346 // part1 - Al - 2 copies
347 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
348 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
349 // sandwich - outermost parts - 2 copies
350 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
351 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
352 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
353 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
37831078 354 //
c1637e41 355 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
356 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
357 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
358 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
37831078 359 //
c1637e41 360 // middle parts - 2 copies
361 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
362 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
363 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
364 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
79575d04 365 //
c1637e41 366 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
367 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
368 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
369 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
370 // central part - 1 copy
371 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
372 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
373 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
79575d04 374 //
c1637e41 375 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
376 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
377 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
79575d04 378 //
c1637e41 379 // inner part - positioning
79575d04 380 //
c1637e41 381 // creating a sandwich
382 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
79575d04 383 //
c1637e41 384 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
79575d04 385 //
c1637e41 386 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
37831078 387 //
c1637e41 388 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
37831078 389 //
c1637e41 390 tv100->AddNode(tv10,1);
391 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
392 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
393 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
394 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
395 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
396 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
397 //
398 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
399 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
400 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
c5d5037c 401 v1->AddNode(hvsm,1,new TGeoTranslation(0.,0.,-163.8));
402 v1->AddNode(hvss,1,new TGeoTranslation(0.,0.,163.8));
c1637e41 403 v9->AddNode(tv100,1);
404 //
405 // central drum
406 //
407 // flange + sandwich
408 //
409 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
410 cfl->DefineSection(0,-71.1,59.7,61.2);
411 cfl->DefineSection(1,-68.6,59.7,61.2);
412 //
413 cfl->DefineSection(2,-68.6,60.6324,61.2);
414 cfl->DefineSection(3,68.6,60.6324,61.2);
415 //
416 cfl->DefineSection(4,68.6,59.7,61.2);
417 cfl->DefineSection(5,71.1,59.7,61.2);
418 //
419 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
420 // sandwich
421 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
422 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
423 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
424 //
425 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
426 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
427 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
428 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
429 //
430 // seals for central drum 2 copies
431 //
432 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
433 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
434 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 435 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
436 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 437 //
438 // seal collars
439 TGeoPcon *se = new TGeoPcon(0.,360.,6);
440 se->DefineSection(0,-72.8,59.7,61.2);
441 se->DefineSection(1,-72.3,59.7,61.2);
442 //
443 se->DefineSection(2,-72.3,58.85,61.2);
444 se->DefineSection(3,-71.6,58.85,61.2);
445 //
446 se->DefineSection(4,-71.6,59.7,61.2);
447 se->DefineSection(5,-71.3,59.7,61.2);
448 //
449 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
450 //
451 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
452 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
453 //
454 // define reflection matrix
455 //
4fa47888 456 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 457 //
458 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
459 //
a1ec4d07 460 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
461 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 462 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
463 //
464 // central membrane - 2 rings and a mylar membrane - assembly
465 //
466 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
467 TGeoTube *oh = new TGeoTube(250.,256.,.5);
468 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
469 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
470 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
471 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
472 //
473 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
474 cm->AddNode(ihv,1);
475 cm->AddNode(ohv,1);
476 cm->AddNode(memv,1);
477 v9->AddNode(cm,1);
478 //
479 // end caps - they are make as an assembly of single segments
480 // containing both readout chambers
481 //
d899e254 482 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 483 Double_t thick=1.5; // rib
d899e254 484 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 485 //
d899e254 486 Double_t lowEdge = 86.3; // hole in the wheel
487 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 488 //
489 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
490 //
491 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
492 //
d899e254 493 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
494 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 495 //
d899e254 496 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
497 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 498 //
d899e254 499 Double_t ys = shift*TMath::Sin(openingAngle);
500 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 501 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
502 tr->RegisterYourself();
503 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
504 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
505 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
506 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
507 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
508 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
509 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
510 //
511 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
512 //
513 // readout chambers
514 //
515 // IROC first
516 //
517 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
518 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
37831078 519 // empty space
c1637e41 520 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
521 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
522 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
523 //bars
524 Double_t tga = (19.8328-12.3742)/39.3;
525 Double_t xmin,xmax;
526 xmin = 9.55*tga+12.3742;
527 xmax = 9.95*tga+12.3742;
528 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
529 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
530 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
531 xmin=19.4*tga+12.3742;
532 xmax=19.9*tga+12.3742;
533 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
534 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
535 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
536 xmin=29.35*tga+12.3742;
537 xmax=29.75*tga+12.3742;
538 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
539 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
540 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
541 //
542 // holes for connectors
543 //
544 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
545 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 546 TString fileName(gSystem->Getenv("ALICE_ROOT"));
547 fileName += "/TPC/conn_iroc.dat";
c1637e41 548 ifstream in;
d9e80aca 549 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 550 for(Int_t i =0;i<86;i++){
456cb019 551 Double_t y = 3.99;
c1637e41 552 Double_t x,z,ang;
553 in>>x>>z>>ang;
456cb019 554 z-=26.5;
c1637e41 555 TGeoRotation *rrr = new TGeoRotation();
556 rrr->RotateY(ang);
557 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
558 ibdv->AddNode(connv,i+1,trans);
559 }
560 in.close();
561 // "cap"
562 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
563 // "hole"
564 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
565 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
566 tr1->RegisterYourself();
567 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
568 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
569 //
570 // pad plane and wire fixations
571 //
572 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
573 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
574 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
575 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
576 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
577 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
578 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
579 //
580 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
581 //
582 iroc->AddNode(ibdv,1);
583 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
584 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
585 tga =(23.3521-14.5974)/49.65;
586 Double_t xx = 24.825*tga+14.5974-0.6;
587 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
588 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
589 //
590 // OROC
591 //
592 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
593 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
594 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
595 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
596 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
597 //horizontal bars
598 tga=(38.5084-20.2938)/99.3;
599 xmin=tga*10.2+20.2938;
600 xmax=tga*10.6+20.2938;
601 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
602 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
603 //
604 xmin=22.55*tga+20.2938;
605 xmax=24.15*tga+20.2938;
606 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
607 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
608 //
609 xmin=36.1*tga+20.2938;
610 xmax=36.5*tga+20.2938;
611 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
612 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
613 //
614 xmin=49.0*tga+20.2938;
615 xmax=50.6*tga+20.2938;
616 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
617 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
618 //
619 xmin=63.6*tga+20.2938;
620 xmax=64.0*tga+20.2938;
621 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
622 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
623 //
624 xmin=75.5*tga+20.2938;
625 xmax=77.15*tga+20.2938;
626 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
627 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
628 //
629 xmin=88.7*tga+20.2938;
630 xmax=89.1*tga+20.2938;
631 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
632 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
633 //
634 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
635 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
636 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
637 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
638 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
639 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
640 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
641 // vertical bars
642 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
643 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
644 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
645 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
646 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
647 //
648 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
649 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
650 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
651 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
652 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
653 //
654 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
655 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
656 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
657 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
658 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
659 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
660 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
661 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
662 //
663 // holes for connectors
664 //
d9e80aca 665 fileName = gSystem->Getenv("ALICE_ROOT");
666 fileName += "/TPC/conn_oroc.dat";
667 in.open(fileName.Data(), ios_base::in); // asci file
c1637e41 668 for(Int_t i =0;i<78;i++){
669 Double_t y =3.89;
670 Double_t x,z,ang;
671 Double_t x1,z1,x2,z2;
672 in>>x>>z>>ang;
673 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
674 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
675 //
676 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
677 //
678 TGeoRotation *rr = new TGeoRotation();
679 rr->RotateY(ang);
680 z1-=54.95;
681 z2-=54.95;
682 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
683 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
684 obdv->AddNode(connv,i+1,trans1);
685 obdv->AddNode(connv,i+79,trans2);
686 }
687 in.close();
688 // cap
689 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
690 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
691 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
692 tr5->RegisterYourself();
693 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
694 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
695 //
696 // pad plane and wire fixations
697 //
698 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
699 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
700 //
701 tga=(43.5239-23.3874)/114.2;
702 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
703 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
704 xx = 57.1*tga+23.3874-0.7;
705 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
706 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
707 //
708 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
709 //
710 oroc->AddNode(obdv,1);
711 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
712 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
713 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
714 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
715 //
716 // now iroc and oroc are placed into a sector...
717 //
a1ec4d07 718 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
719 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
720 //
1fba9945 721
c1637e41 722 TGeoRotation rot1("rot1",90.,90.,0.);
723 TGeoRotation rot2("rot2");
724 rot2.RotateY(10.);
725 TGeoRotation *rot = new TGeoRotation("rot");
726 *rot=rot1*rot2;
727 //
728 Double_t x0,y0;
d899e254 729 x0=110.2*TMath::Cos(openingAngle);
730 y0=110.2*TMath::Sin(openingAngle);
20527578 731 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
732 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 733 x0=188.45*TMath::Cos(openingAngle);
734 y0=188.45*TMath::Sin(openingAngle);
20527578 735 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
736 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
a1ec4d07 737 //
738 // A-side
739 //
740 secta->AddNode(ch,1);
741 secta->AddNode(iroc,1,combi1a);
742 secta->AddNode(oroc,1,combi2a);
743 //
744 // C-side
c1637e41 745 //
a1ec4d07 746 sectc->AddNode(ch,1);
747 sectc->AddNode(iroc,1,combi1c);
748 sectc->AddNode(oroc,1,combi2c);
c1637e41 749 //
a1ec4d07 750 // now I try to make wheels...
c1637e41 751 //
a1ec4d07 752 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
753 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 754 //
755 for(Int_t i =0;i<18;i++){
756 Double_t phi = (20.*i);
757 TGeoRotation *r = new TGeoRotation();
758 r->RotateZ(phi);
a1ec4d07 759 wheela->AddNode(secta,i+1,r);
760 wheelc->AddNode(sectc,i+1,r);
c1637e41 761 }
762 // wheels in the drift volume!
c1637e41 763 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 764 v9->AddNode(wheela,1,combi3);
765 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 766 //_____________________________________________________________
767 // service support wheel
768 //_____________________________________________________________
769 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
770 sw->DefineSection(0,-4.,80.5,251.75);
771 sw->DefineSection(1,4.,80.5,251.75);
772 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
773 //
774 thick=1.;
d899e254 775 shift = thick/TMath::Sin(openingAngle);
c1637e41 776 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
777 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
778 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
779 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
780 //
74518339 781 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
782 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
783 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
784 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
785 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
786 //
787 shv->AddNode(elv,1);
788 //
789 //
d899e254 790 ys = shift*TMath::Sin(openingAngle);
791 xs = shift*TMath::Cos(openingAngle);
c1637e41 792 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
793 // cover
794 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
795 co->DefineSection(0,-0.5,77.,255.25);
796 co->DefineSection(1,0.5,77.,255.25);
797 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
798 // hole in a cover
799 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 800 shift=4./TMath::Sin(openingAngle);
c1637e41 801 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
802 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
803 //
804 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
805 //
d899e254 806 ys = shift*TMath::Sin(openingAngle);
807 xs = shift*TMath::Cos(openingAngle);
c1637e41 808 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
809 //
810 // Sector as an Assembly
811 //
812 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
813 swhs->AddNode(swv,1);
814 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
815 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
816 //
817 // SSW as an Assembly of sectors
818 //
819 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
820 for(Int_t i =0;i<18;i++){
821 Double_t phi = (20.*i);
822 TGeoRotation *r = new TGeoRotation();
823 r->RotateZ(phi);
824 swheel->AddNode(swhs,i+1,r);
825 }
826 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
827 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
828 //
37831078 829 //----------------------------------------------------------
830 // TPc Support Rods - MAKROLON
831 //----------------------------------------------------------
c1637e41 832 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
833 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 834 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
835 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
c1637e41 836 // upper and lower rods differ in length!
837 Double_t *upar;
838 upar=NULL;
839 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
840 upar=new Double_t [3];
841 upar[0]=1.8;
842 upar[1]=2.2;
843
844 //
845 //HV rods - makrolon + 0.58cm (diameter) Cu
ae4806ca 846 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
c1637e41 847 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
848 //
849 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
850 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
851 hvrv->AddNode(hvcv,1);
78134e48 852 //
853 // resistor rods
854 //
855 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
856 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
857 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
858 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
859 //
860 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
861 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
862 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
863 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
864 //
865 // ceramic rod with water
866 //
867 criv->AddNode(cwiv,1);
868 crov->AddNode(cwov,1);
869 //
870 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
871 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
872 //
873 // peek rod
874 //
875 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
876 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
877 //
878 // resistor rods assembly
879 //
be53328e 880 TGeoRotation *rotr = new TGeoRotation("rotr");
881 rotr->RotateZ(-21.);
78134e48 882 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
883 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
884 //
885 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
886 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
887 //
a3d2be59 888 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
889 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
890 rrin->AddNode(rriv,1);
891 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
892 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
893 rrin->AddNode(priv,1);
894 //
895 rrou->AddNode(rrov,1);
896 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
897 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
898 rrou->AddNode(prov,1);
7281dc07 899 for(Int_t i=0;i<18;i++){
c1637e41 900 Double_t angle,x,y;
901 Double_t z,r;
902 angle=TMath::DegToRad()*20.*(Double_t)i;
903 r=81.5;
904 x=r * TMath::Cos(angle);
905 y=r * TMath::Sin(angle);
906 upar[2]=126.64; //lower
907 z= 126.96;
78134e48 908 if(i==3){
be53328e 909 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
910 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 911 }
912 else {
913 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
914 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
c1637e41 915 }
78134e48 916
917
918 //
c1637e41 919 r=254.25;
920 x=r * TMath::Cos(angle);
921 y=r * TMath::Sin(angle);
922 upar[2]=126.54; //upper
923 z=127.06;
78134e48 924 //
925 if(i==15){
5042ab7d 926 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
927 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 928 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
929 }
930 else if(i==11){
be53328e 931 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
932 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 933 }
934 else{
935 //
936 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
937 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
938 }
939
37831078 940 }
941
bde68ab0 942 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
943 alice->AddNode(v1,1);
944
79575d04 945
1283eee5 946} // end of function
947
fe4da5cc 948
c5d5037c 949
fe4da5cc 950//_____________________________________________________________________________
951void AliTPCv0::CreateMaterials()
952{
953 //
954 // Define materials for the TPC
955 //
956 AliTPC::CreateMaterials();
957}
958
fe4da5cc 959
960//_____________________________________________________________________________
961void AliTPCv0::Init()
962{
963 //
964 // Initialise Time Projection Chamber version 0
965 //
13a8c8d7 966
967 printf("%s: *** TPC version 0 initialized***\n",ClassName());
968
969 // printf("TPC version 0 initialized\n");
fe4da5cc 970}
971
972//_____________________________________________________________________________
973void AliTPCv0::StepManager()
974{
975 //
976 // Procedure called at each step in the TPC
977 //
978}