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15 minutes interval for calculation of drift correction
[u/mrichter/AliRoot.git] / TPC / AliTPCv4.cxx
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457e2170 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
16/*
17$Log$
e6add757 18Revision 1.1 2007/06/24 20:56:19 hristov
19TPC version for the krypton runs (Marek)
20
457e2170 21*/
22
23//
24///////////////////////////////////////////////////////////////////////////////
25// //
26// Time Projection Chamber version 4 -- detailed TPC and slow simulation //
27// of Krypton decays //
28// //
29//Begin_Html //
30/*
31<img src="picts/AliTPCv2Class.gif">
32*/
33//End_Html
34// //
35// //
36///////////////////////////////////////////////////////////////////////////////
37
38//#include <stdlib.h>
39
40#include <TLorentzVector.h>
41#include <TPDGCode.h>
42#include <TString.h>
43#include "AliLog.h"
b40afa5e 44#include "AliMathBase.h"
457e2170 45#include "AliTPCParam.h"
46#include "AliTPCTrackHitsV2.h"
47#include "AliTPCv4.h"
48#include "TGeoVolume.h"
49#include "TGeoPcon.h"
50#include "TGeoTube.h"
51#include "TGeoPgon.h"
52#include "TGeoTrd1.h"
53#include "TGeoCompositeShape.h"
54#include "TGeoPara.h"
55#include "TGeoPhysicalNode.h"
56
57ClassImp(AliTPCv4)
58
59//_____________________________________________________________________________
60AliTPCv4::AliTPCv4(const char *name, const char *title) :
61 AliTPC(name, title),
62 fIdSens(0),
63 fIDrift(0),
64 fSecOld(0)
65{
66 //
67 // Standard constructor for Time Projection Chamber version 2
68 //
69
70
71 SetBufferSize(128000);
72
73
74 if (fTPCParam)
75 fTPCParam->Write(fTPCParam->GetTitle());
76}
77
78//_____________________________________________________________________________
79void AliTPCv4::CreateGeometry()
80{
81 //
82 // Create the geometry of Time Projection Chamber version 2
83 //
84 //Begin_Html
85 /*
86 <img src="picts/AliTPC.gif">
87 */
88 //End_Html
89 //Begin_Html
90 /*
91 <img src="picts/AliTPCv2Tree.gif">
92 */
93 //End_Html
94
95 //----------------------------------------------------------
96 // This geometry is written using TGeo class
97 // Firstly the shapes are defined, and only then the volumes
98 // What is recognized by the MC are volumes
99 //----------------------------------------------------------
100 //
101 // tpc - this will be the mother volume
102 //
103
104 //
105 // here I define a volume TPC
106 // retrive the medium name with "TPC_" as a leading string
107 //
78134e48 108 TGeoPcon *tpc = new TGeoPcon(0.,360.,20); //20 sections
457e2170 109 //
78134e48 110 tpc->DefineSection(0,-291.,77.,278.);
111 tpc->DefineSection(1,-270,77.,278.);
457e2170 112 //
78134e48 113 tpc->DefineSection(2,-270.,77.,278.);
114 tpc->DefineSection(3,-259.6,70.,278.);
457e2170 115 //
78134e48 116 tpc->DefineSection(4,-259.6,68.1,278.);
117 tpc->DefineSection(5,-253.6,68.1,278.);
457e2170 118 //
78134e48 119 tpc->DefineSection(6,-253.6,68.,278.);
120 tpc->DefineSection(7,-74.0,60.8,278.);
457e2170 121 //
78134e48 122 tpc->DefineSection(8,-74.0,60.1,278.);
123 tpc->DefineSection(9,-73.3,60.1,278.);
457e2170 124 //
78134e48 125 tpc->DefineSection(10,-73.3,56.9,278.);
126 tpc->DefineSection(11,73.3,56.9,278.);
457e2170 127 //
78134e48 128 tpc->DefineSection(12,73.3,60.1,278.);
129 tpc->DefineSection(13,74.0,60.1,278.);
457e2170 130 //
78134e48 131 tpc->DefineSection(14,74.0,60.8,278.);
132 tpc->DefineSection(15,253.6,65.5,278.);
133 //
134 tpc->DefineSection(16,253.6,65.6,278.);
135 tpc->DefineSection(17,259.6,65.6,278.);
136 //
137 tpc->DefineSection(18,259.6,70.0,278.);
138 tpc->DefineSection(19,291.,77.,278.);
457e2170 139 //
140 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
141 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
142 //
143 // drift volume - sensitive volume, extended beyond the
144 // endcaps, because of the alignment
145 //
146 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
147 dvol->DefineSection(0,-260.,74.5,264.4);
148 dvol->DefineSection(1,-253.6,74.5,264.4);
149 //
150 dvol->DefineSection(2,-253.6,76.6774,258.);
151 dvol->DefineSection(3,253.6,76.6774,258.);
152 //
153 dvol->DefineSection(4,253.6,74.5,264.4);
154 dvol->DefineSection(5,260.,74.5,264.4);
155 //
156 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-3");
157 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
158 //
159 v1->AddNode(v9,1);
160 //
161 // outer insulator
162 //
163 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
164 //
165 tpco->DefineSection(0,-256.6,264.8,278.);
166 tpco->DefineSection(1,-253.6,264.8,278.);
167 //
168 tpco->DefineSection(2,-253.6,258.,278.);
169 tpco->DefineSection(3,250.6,258.,278.);
170 //
171 tpco->DefineSection(4,250.6,258.,275.5);
172 tpco->DefineSection(5,253.6,258.,275.5);
173 //
174 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
175 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
176 //
177 // outer containment vessel
178 //
179 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
180 //
181 tocv->DefineSection(0,-256.6,264.8,278.);
182 tocv->DefineSection(1,-253.6,264.8,278.);
183 //
184 tocv->DefineSection(2,-253.6,274.8124,278.);
185 tocv->DefineSection(3,247.6,274.8124,278.);
186 //
187 tocv->DefineSection(4,247.6,270.4,278.);
188 tocv->DefineSection(5,250.6,270.4,278.);
189 //
190 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
191 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
192 //
193 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
194 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
195 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
196 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
197 //
198 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
199 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
200 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
201 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
202 //
203 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
204 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
205 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
206 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
207 //-------------------------------------------------------
208 // Tpc Outer Field Cage
209 // daughters - composite (sandwich)
210 //-------------------------------------------------------
211
212 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
213 //
214 tofc->DefineSection(0,-253.6,258.,269.6);
215 tofc->DefineSection(1,-250.6,258.,269.6);
216 //
217 tofc->DefineSection(2,-250.6,258.,260.0676);
218 tofc->DefineSection(3,250.6,258.,260.0676);
219 //
220 tofc->DefineSection(4,250.6,258.,275.5);
221 tofc->DefineSection(5,253.6,258.,275.5);
222 //
223 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
224 //sandwich
225 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
226 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
227 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
228 //
229 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
230 //
231 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
232 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
233 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
234 //
235 // outer part - positioning
236 //
237 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
238 //
239 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
240 //
241 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
242 //
243 v2->AddNode(v3,1); v2->AddNode(v4,1);
244 //
245 v1->AddNode(v2,1);
246 //--------------------------------------------------------------------
247 // Tpc Inner INsulator (CO2)
248 // the cones, the central drum and the inner f.c. sandwich with a piece
249 // of the flane will be placed in the TPC
250 //--------------------------------------------------------------------
251 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
252 //
253 tpci->DefineSection(0,-253.6,68.4,76.6774);
254 tpci->DefineSection(1,-74.0,61.2,76.6774);
255 //
256 tpci->DefineSection(2,74.0,61.2,76.6774);
257 //
258 tpci->DefineSection(3,253.6,65.9,76.6774);
259 //
260 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
261 //
262 // now the inner field cage - only part of flanges (2 copies)
263 //
264 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
265 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
266 //
267 //---------------------------------------------------------
268 // Tpc Inner Containment vessel - Muon side
269 //---------------------------------------------------------
270 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
271 //
272 tcms->DefineSection(0,-259.1,68.1,74.2);
273 tcms->DefineSection(1,-253.6,68.1,74.2);
274 //
275 tcms->DefineSection(2,-253.6,68.1,68.4);
276 tcms->DefineSection(3,-74.0,60.9,61.2);
277 //
278 tcms->DefineSection(4,-74.0,60.1,61.2);
279 tcms->DefineSection(5,-73.3,60.1,61.2);
280 //
281 tcms->DefineSection(6,-73.3,56.9,61.2);
282 tcms->DefineSection(7,-73.0,56.9,61.2);
283 //
284 tcms->DefineSection(8,-73.0,56.9,58.8);
285 tcms->DefineSection(9,-71.3,56.9,58.8);
286 //
287 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
288 //-----------------------------------------------
289 // inner containment vessel - shaft side
290 //-----------------------------------------------
291 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
292 //
293 tcss->DefineSection(0,71.3,56.9,58.8);
294 tcss->DefineSection(1,73.0,56.9,58.8);
295 //
296 tcss->DefineSection(2,73.0,56.9,61.2);
297 tcss->DefineSection(3,73.3,56.9,61.2);
298 //
299 tcss->DefineSection(4,73.3,60.1,61.2);
300 tcss->DefineSection(5,74.0,60.1,61.2);
301 //
302 tcss->DefineSection(6,74.0,60.9,61.2);
303 tcss->DefineSection(7,253.6,65.6,65.9);
304 //
305 tcss->DefineSection(8,253.6,65.6,74.2);
306 tcss->DefineSection(9,258.1,65.6,74.2);
307 //
308 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
309 //-----------------------------------------------
310 // Inner field cage
311 // define 4 parts and make an assembly
312 //-----------------------------------------------
313 // part1 - Al - 2 copies
314 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
315 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
316 // sandwich - outermost parts - 2 copies
317 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
318 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
319 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
320 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
321 //
322 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
323 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
324 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
325 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
326 //
327 // middle parts - 2 copies
328 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
329 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
330 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
331 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
332 //
333 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
334 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
335 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
336 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
337 // central part - 1 copy
338 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
339 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
340 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
341 //
342 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
343 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
344 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
345 //
346 // inner part - positioning
347 //
348 // creating a sandwich
349 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
350 //
351 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
352 //
353 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
354 //
355 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
356 //
357 tv100->AddNode(tv10,1);
358 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
359 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
360 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
361 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
362 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
363 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
364 //
365 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
366 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
367 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
368 v9->AddNode(tv100,1);
369 //
370 // central drum
371 //
372 // flange + sandwich
373 //
374 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
375 cfl->DefineSection(0,-71.1,59.7,61.2);
376 cfl->DefineSection(1,-68.6,59.7,61.2);
377 //
378 cfl->DefineSection(2,-68.6,60.6324,61.2);
379 cfl->DefineSection(3,68.6,60.6324,61.2);
380 //
381 cfl->DefineSection(4,68.6,59.7,61.2);
382 cfl->DefineSection(5,71.1,59.7,61.2);
383 //
384 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
385 // sandwich
386 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
387 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
388 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
389 //
390 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
391 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
392 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
393 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
394 //
395 // seals for central drum 2 copies
396 //
397 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
398 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
399 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
78134e48 400 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
401 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
457e2170 402 //
403 // seal collars
404 TGeoPcon *se = new TGeoPcon(0.,360.,6);
405 se->DefineSection(0,-72.8,59.7,61.2);
406 se->DefineSection(1,-72.3,59.7,61.2);
407 //
408 se->DefineSection(2,-72.3,58.85,61.2);
409 se->DefineSection(3,-71.6,58.85,61.2);
410 //
411 se->DefineSection(4,-71.6,59.7,61.2);
412 se->DefineSection(5,-71.3,59.7,61.2);
413 //
414 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
415 //
416 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
417 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
418 //
419 // define reflection matrix
420 //
421 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
422 //
423 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
424 //
425 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
426 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
427 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
428 //
429 // central membrane - 2 rings and a mylar membrane - assembly
430 //
431 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
432 TGeoTube *oh = new TGeoTube(250.,256.,.5);
433 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
434 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
435 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
436 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
437 //
438 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
439 cm->AddNode(ihv,1);
440 cm->AddNode(ohv,1);
441 cm->AddNode(memv,1);
442 v9->AddNode(cm,1);
443 //
444 // end caps - they are make as an assembly of single segments
445 // containing both readout chambers
446 //
447 Double_t openingAngle = 10.*TMath::DegToRad();
448 Double_t thick=1.5; // rib
449 Double_t shift = thick/TMath::Sin(openingAngle);
450 //
451 Double_t lowEdge = 86.3; // hole in the wheel
452 Double_t upEdge = 240.4; // hole in the wheel
453 //
454 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
455 //
456 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
457 //
458 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
459 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
460 //
461 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
462 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
463 //
464 Double_t ys = shift*TMath::Sin(openingAngle);
465 Double_t xs = shift*TMath::Cos(openingAngle);
466 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
467 tr->RegisterYourself();
468 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
469 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
470 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
471 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
472 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
473 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
474 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
475 //
476 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
477 //
478 // readout chambers
479 //
480 // IROC first
481 //
482 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
483 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
484 // empty space
485 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
486 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
487 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
488 //bars
489 Double_t tga = (19.8328-12.3742)/39.3;
490 Double_t xmin,xmax;
491 xmin = 9.55*tga+12.3742;
492 xmax = 9.95*tga+12.3742;
493 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
494 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
495 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
496 xmin=19.4*tga+12.3742;
497 xmax=19.9*tga+12.3742;
498 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
499 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
500 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
501 xmin=29.35*tga+12.3742;
502 xmax=29.75*tga+12.3742;
503 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
504 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
505 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
506 //
507 // holes for connectors
508 //
509 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
510 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
511 TString fileName(gSystem->Getenv("ALICE_ROOT"));
512 fileName += "/TPC/conn_iroc.dat";
513 ifstream in;
514 in.open(fileName.Data(), ios_base::in); // asci file
515 for(Int_t i =0;i<86;i++){
516 Double_t y = 3.99;
517 Double_t x,z,ang;
518 in>>x>>z>>ang;
519 z-=26.5;
520 TGeoRotation *rrr = new TGeoRotation();
521 rrr->RotateY(ang);
522 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
523 ibdv->AddNode(connv,i+1,trans);
524 }
525 in.close();
526 // "cap"
527 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
528 // "hole"
529 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
530 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
531 tr1->RegisterYourself();
532 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
533 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
534 //
535 // pad plane and wire fixations
536 //
537 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
538 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
539 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
540 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
541 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
542 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
543 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
544 //
545 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
546 //
547 iroc->AddNode(ibdv,1);
548 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
549 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
550 tga =(23.3521-14.5974)/49.65;
551 Double_t xx = 24.825*tga+14.5974-0.6;
552 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
553 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
554 //
555 // OROC
556 //
557 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
558 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
559 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
560 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
561 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
562 //horizontal bars
563 tga=(38.5084-20.2938)/99.3;
564 xmin=tga*10.2+20.2938;
565 xmax=tga*10.6+20.2938;
566 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
567 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
568 //
569 xmin=22.55*tga+20.2938;
570 xmax=24.15*tga+20.2938;
571 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
572 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
573 //
574 xmin=36.1*tga+20.2938;
575 xmax=36.5*tga+20.2938;
576 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
577 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
578 //
579 xmin=49.0*tga+20.2938;
580 xmax=50.6*tga+20.2938;
581 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
582 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
583 //
584 xmin=63.6*tga+20.2938;
585 xmax=64.0*tga+20.2938;
586 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
587 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
588 //
589 xmin=75.5*tga+20.2938;
590 xmax=77.15*tga+20.2938;
591 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
592 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
593 //
594 xmin=88.7*tga+20.2938;
595 xmax=89.1*tga+20.2938;
596 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
597 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
598 //
599 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
600 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
601 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
602 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
603 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
604 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
605 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
606 // vertical bars
607 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
608 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
609 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
610 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
611 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
612 //
613 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
614 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
615 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
616 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
617 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
618 //
619 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
620 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
621 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
622 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
623 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
624 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
625 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
626 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
627 //
628 // holes for connectors
629 //
630 fileName = gSystem->Getenv("ALICE_ROOT");
631 fileName += "/TPC/conn_oroc.dat";
632 in.open(fileName.Data(), ios_base::in); // asci file
633 for(Int_t i =0;i<78;i++){
634 Double_t y =3.89;
635 Double_t x,z,ang;
636 Double_t x1,z1,x2,z2;
637 in>>x>>z>>ang;
638 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
639 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
640 //
641 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
642 //
643 TGeoRotation *rr = new TGeoRotation();
644 rr->RotateY(ang);
645 z1-=54.95;
646 z2-=54.95;
647 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
648 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
649 obdv->AddNode(connv,i+1,trans1);
650 obdv->AddNode(connv,i+79,trans2);
651 }
652 in.close();
653 // cap
654 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
655 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
656 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
657 tr5->RegisterYourself();
658 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
659 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
660 //
661 // pad plane and wire fixations
662 //
663 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
664 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
665 //
666 tga=(43.5239-23.3874)/114.2;
667 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
668 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
669 xx = 57.1*tga+23.3874-0.7;
670 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
671 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
672 //
673 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
674 //
675 oroc->AddNode(obdv,1);
676 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
677 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
678 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
679 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
680 //
681 // now iroc and oroc are placed into a sector...
682 //
683 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
684 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
685 TGeoRotation rot1("rot1",90.,90.,0.);
686 TGeoRotation rot2("rot2");
687 rot2.RotateY(10.);
688 TGeoRotation *rot = new TGeoRotation("rot");
689 *rot=rot1*rot2;
690 //
691 Double_t x0,y0;
692 x0=110.2*TMath::Cos(openingAngle);
693 y0=110.2*TMath::Sin(openingAngle);
20527578 694 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
695 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
457e2170 696 x0=188.45*TMath::Cos(openingAngle);
697 y0=188.45*TMath::Sin(openingAngle);
20527578 698 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
699 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
457e2170 700 //
701 //
702 // A-side
703 //
704 secta->AddNode(ch,1);
705 secta->AddNode(iroc,1,combi1a);
706 secta->AddNode(oroc,1,combi2a);
707 //
708 // C-side
709 //
710 sectc->AddNode(ch,1);
711 sectc->AddNode(iroc,1,combi1c);
712 sectc->AddNode(oroc,1,combi2c);
713 //
714 // now I try to make wheels...
715 //
716 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
717 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
718 //
719 for(Int_t i =0;i<18;i++){
720 Double_t phi = (20.*i);
721 TGeoRotation *r = new TGeoRotation();
722 r->RotateZ(phi);
723 wheela->AddNode(secta,i+1,r);
724 wheelc->AddNode(sectc,i+1,r);
725
726 }
727 // wheels in the drift volume!
728
729 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
730 v9->AddNode(wheela,1,combi3);
731 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
732 //_____________________________________________________________
733 // service support wheel
734 //_____________________________________________________________
735 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
736 sw->DefineSection(0,-4.,80.5,251.75);
737 sw->DefineSection(1,4.,80.5,251.75);
738 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
739 //
740 thick=1.;
741 shift = thick/TMath::Sin(openingAngle);
742 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
743 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
744 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
745 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
746 //
747 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
748 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
749 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
750 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
751 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
752 //
753 shv->AddNode(elv,1);
754 //
755 //
756 ys = shift*TMath::Sin(openingAngle);
757 xs = shift*TMath::Cos(openingAngle);
758 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
759 // cover
760 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
761 co->DefineSection(0,-0.5,77.,255.25);
762 co->DefineSection(1,0.5,77.,255.25);
763 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
764 // hole in a cover
765 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
766 shift=4./TMath::Sin(openingAngle);
767 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
768 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
769 //
770 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
771 //
772 ys = shift*TMath::Sin(openingAngle);
773 xs = shift*TMath::Cos(openingAngle);
774 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
775 //
776 // Sector as an Assembly
777 //
778 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
779 swhs->AddNode(swv,1);
780 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
781 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
782 //
783 // SSW as an Assembly of sectors
784 //
785 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
786 for(Int_t i =0;i<18;i++){
787 Double_t phi = (20.*i);
788 TGeoRotation *r = new TGeoRotation();
789 r->RotateZ(phi);
790 swheel->AddNode(swhs,i+1,r);
791 }
792 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
793 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
794
795 // sensitive strips - strip "0" is always set
796 // conditional
797 Int_t totrows;
798 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
799 Double_t *upar;
800 upar=NULL;
801 gGeoManager->Volume("TPC_Strip","PGON",m5->GetId(),upar);
802 upar=new Double_t [10];
803 upar[0]=0.;
804 upar[1]=360.;
805 upar[2]=18.;
806 upar[3]=2.;
807 //
808 upar[4]=-124.8;
809 upar[7]=124.8;
810
811 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
812
813 upar[5]=rlow;
814 upar[6]=rlow+.01;
815 upar[8]=upar[5];
816 upar[9]=upar[6];
817 //
818 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
819 gGeoManager->Node("TPC_Strip",totrows+1,
820 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
821 //
822 // now, strips optionally
823 //
824 if(fSens){
825 //lower sectors
826 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
827 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
828 upar[5]=rlow;
829 upar[6]=rlow+.01;
830 upar[8]=upar[5];
831 upar[9]=upar[6];
832 gGeoManager->Node("TPC_Strip",i,
833 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
834 gGeoManager->Node("TPC_Strip",totrows+i,
835 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
836 }
837 //upper sectors
838 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
839 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
840 upar[5]=rlow;
841 upar[6]=rlow+.01;
842 upar[8]=upar[5];
843 upar[9]=upar[6];
844 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
845 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
846 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
847 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
848 }
849 }//strips
850 //----------------------------------------------------------
851 // TPc Support Rods - MAKROLON
852 //----------------------------------------------------------
853 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
854 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 855 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
856 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
857 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
457e2170 858 // upper and lower rods differ in length!
859 delete [] upar;
860 upar=NULL;
861 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
862 upar=new Double_t [3];
863 upar[0]=1.8;
864 upar[1]=2.2;
865
866 //
867 //HV rods - makrolon + 0.58cm (diameter) Cu
868 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
869 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
870 //
871 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
872 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
873 hvrv->AddNode(hvcv,1);
78134e48 874 //
875 // resistor rods
876 //
877 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
878 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
879 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
880 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
881 //
882 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
883 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
884 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
885 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
886 //
887 // ceramic rod with water
888 //
889 criv->AddNode(cwiv,1);
890 crov->AddNode(cwov,1);
891 //
892 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
893 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
894 //
895 // peek rod
896 //
897 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
898 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
899 //
900 // resistor rods assembly
901 //
be53328e 902 TGeoRotation *rotr = new TGeoRotation("rotr");
903 rotr->RotateZ(-21.);
78134e48 904 //
905 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
906 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
907 //
908 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
909 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
910 //
a3d2be59 911 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
912 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
913 rrin->AddNode(rriv,1);
914 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
915 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
916 rrin->AddNode(priv,1);
917 //
918 rrou->AddNode(rrov,1);
919 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
920 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
921 rrou->AddNode(prov,1);
457e2170 922 for(Int_t i=0;i<18;i++){
923 Double_t angle,x,y;
924 Double_t z,r;
925 angle=TMath::DegToRad()*20.*(Double_t)i;
926 r=81.5;
927 x=r * TMath::Cos(angle);
928 y=r * TMath::Sin(angle);
929 upar[2]=126.64; //lower
930 z= 126.96;
78134e48 931 //
932 if(i==3){
be53328e 933 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
934 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 935 }
936 else {
937 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
938 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
457e2170 939 }
78134e48 940
941
942 //
457e2170 943 r=254.25;
944 x=r * TMath::Cos(angle);
945 y=r * TMath::Sin(angle);
946 upar[2]=126.54; //upper
947 z=127.06;
78134e48 948 if(i==15){
39ae7605 949 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
950 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
78134e48 951 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
952 }
953 else if(i==11){
be53328e 954 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
955 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
78134e48 956 }
957 else{
958 //
959 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
960 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
961 }
457e2170 962 }
963
964 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
965 alice->AddNode(v1,1);
966
967} // end of function
968
969//_____________________________________________________________________________
970void AliTPCv4::AddAlignableVolumes() const
971{
972 //
973 // Create entries for alignable volumes associating the symbolic volume
974 // name with the corresponding volume path. Needs to be syncronized with
975 // eventual changes in the geometry.
976 //
977 SetInnerChambersAlignable();
978 SetOuterChambersAlignable();
979}
980
981//_____________________________________________________________________________
982void AliTPCv4::SetInnerChambersAlignable() const
983{
984 //
985 Int_t modnum = 0;
986 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
987 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
988 TString vpappend = "/TPC_IROC_1";
989 TString snstr1="TPC/EndcapA/Sector";
990 TString snstr2="TPC/EndcapC/Sector";
991 TString snappend="/InnerChamber";
992 TString volpath, symname;
993
994 for(Int_t cnt=1; cnt<=18; cnt++){
995 volpath = vpstr1;
996 volpath += cnt;
997 volpath += vpappend;
998 symname = snstr1;
999 symname += cnt;
1000 symname += snappend;
1001 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data()))
1002 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
1003 //
1004 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data());
1005 const char *path = alignableEntry->GetTitle();
1006 if (!gGeoManager->cd(path))
1007 AliFatal(Form("Volume path %s not valid!",path));
1008 TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix();
1009 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,cnt-1);
1010 alignableEntry->SetMatrix(matTtoL);
1011 modnum++;
1012 }
1013
1014 for(Int_t cnt=1; cnt<=18; cnt++){
1015 volpath = vpstr2;
1016 volpath += cnt;
1017 volpath += vpappend;
1018 symname = snstr2;
1019 symname += cnt;
1020 symname += snappend;
1021 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data()))
1022 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
1023 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data());
1024 const char *path = alignableEntry->GetTitle();
1025 if (!gGeoManager->cd(path))
1026 AliFatal(Form("Volume path %s not valid!",path));
1027 TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix();
1028 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,18+cnt-1);
1029 alignableEntry->SetMatrix(matTtoL);
1030 modnum++;
1031 }
1032}
1033
1034//_____________________________________________________________________________
1035void AliTPCv4::SetOuterChambersAlignable() const
1036{
1037 //
1038 Int_t modnum = 0;
1039 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
1040 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
1041 TString vpappend = "/TPC_OROC_1";
1042 TString snstr1="TPC/EndcapA/Sector";
1043 TString snstr2="TPC/EndcapC/Sector";
1044 TString snappend="/OuterChamber";
1045 TString volpath, symname;
1046
1047 for(Int_t cnt=1; cnt<=18; cnt++){
1048 volpath = vpstr1;
1049 volpath += cnt;
1050 volpath += vpappend;
1051 symname = snstr1;
1052 symname += cnt;
1053 symname += snappend;
1054 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data()))
1055 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
1056 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data());
1057 const char *path = alignableEntry->GetTitle();
1058 if (!gGeoManager->cd(path))
1059 AliFatal(Form("Volume path %s not valid!",path));
1060 TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix();
1061 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+cnt-1);
1062 alignableEntry->SetMatrix(matTtoL);
1063 modnum++;
1064 }
1065
1066 for(Int_t cnt=1; cnt<=18; cnt++){
1067 volpath = vpstr2;
1068 volpath += cnt;
1069 volpath += vpappend;
1070 symname = snstr2;
1071 symname += cnt;
1072 symname += snappend;
1073 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data()))
1074 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
1075 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data());
1076 const char *path = alignableEntry->GetTitle();
1077 if (!gGeoManager->cd(path))
1078 AliFatal(Form("Volume path %s not valid!",path));
1079 TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix();
1080 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+18+cnt-1);
1081 alignableEntry->SetMatrix(matTtoL);
1082 modnum++;
1083 }
1084}
1085
1086//_____________________________________________________________________________
99dcb142 1087void AliTPCv4::DrawDetector() const
457e2170 1088{
1089 //
1090 // Draw a shaded view of the Time Projection Chamber version 1
1091 //
1092
1093 // Set everything unseen
1094 gMC->Gsatt("*", "seen", -1);
1095 //
1096 // Set ALIC mother transparent
1097 gMC->Gsatt("ALIC","SEEN",0);
1098 //
1099 // Set the volumes visible
1100 //
1101
1102 gMC->Gsatt("TPC ","SEEN",0);
1103 gMC->Gsatt("TOIN","SEEN",1);
1104 gMC->Gsatt("TOIN","COLO",7);
1105 gMC->Gsatt("TOCV","SEEN",1);
1106 gMC->Gsatt("TOCV","COLO",4);
1107 gMC->Gsatt("TSA1","SEEN",0);
1108 gMC->Gsatt("TSA2","SEEN",0);
1109 gMC->Gsatt("TSA3","SEEN",0);
1110 gMC->Gsatt("TSA4","SEEN",0);
1111 gMC->Gsatt("TSA5","SEEN",0);
1112 gMC->Gsatt("TOFC","SEEN",1);
1113 gMC->Gsatt("TOFC","COLO",4);
1114 gMC->Gsatt("TSA6","SEEN",0);
1115 gMC->Gsatt("TSA7","SEEN",0);
1116 gMC->Gsatt("TSA8","SEEN",0);
1117 gMC->Gsatt("TIIN","SEEN",1);
1118 gMC->Gsatt("TIIN","COLO",7);
1119 gMC->Gsatt("TII1","SEEN",0);
1120 gMC->Gsatt("TIFC","SEEN",1);
1121 gMC->Gsatt("TIFC","COLO",4);
1122 gMC->Gsatt("TSA9","SEEN",0);
1123 gMC->Gsatt("TS10","SEEN",0);
1124 gMC->Gsatt("TS11","SEEN",0);
1125 gMC->Gsatt("TS12","SEEN",0);
1126 gMC->Gsatt("TS13","SEEN",0);
1127 gMC->Gsatt("TS14","SEEN",0);
1128 gMC->Gsatt("TICC","SEEN",0);
1129 gMC->Gsatt("TICM","SEEN",0);
1130 gMC->Gsatt("TS15","SEEN",0);
1131 gMC->Gsatt("TS16","SEEN",0);
1132 gMC->Gsatt("TS17","SEEN",0);
1133 gMC->Gsatt("TS18","SEEN",0);
1134 gMC->Gsatt("TS19","SEEN",0);
1135 gMC->Gsatt("TPJ1","SEEN",0);
1136 gMC->Gsatt("TPJ2","SEEN",0);
1137 gMC->Gsatt("TICS","SEEN",0);
1138 gMC->Gsatt("TDGN","SEEN",0);
1139 gMC->Gsatt("TIRC","SEEN",0);
1140 gMC->Gsatt("TIC1","SEEN",1);
1141 gMC->Gsatt("TIPP","SEEN",0);
1142 gMC->Gsatt("TIC3","SEEN",0);
1143 gMC->Gsatt("TRCE","SEEN",0);
1144 gMC->Gsatt("TPSC","SEEN",0);
1145 gMC->Gsatt("TPCC","SEEN",0);
1146 gMC->Gsatt("TORC","SEEN",0);
1147 gMC->Gsatt("TOPP","SEEN",0);
1148 gMC->Gsatt("TOC3","SEEN",0);
1149 gMC->Gsatt("TOC1","SEEN",1);
1150 gMC->Gsatt("TSSW","SEEN",1);
1151 gMC->Gsatt("TSWC","SEEN",1);
1152 gMC->Gsatt("TSSW","COLO",3);
1153 gMC->Gsatt("TSWC","COLO",3);
1154 gMC->Gsatt("TSCE","COLO",6);
1155 gMC->Gsatt("TSCE","SEEN",1);
1156 gMC->Gsatt("TWES","SEEN",0);
1157 gMC->Gsatt("TSWB","SEEN",0);
1158 gMC->Gsatt("TPEL","SEEN",0);
1159 gMC->Gsatt("TPMW","SEEN",1);
1160 gMC->Gsatt("TESR","SEEN",1);
1161 gMC->Gsatt("TPMW","COLO",12);
1162 gMC->Gsatt("TIC1","COLO",5);
1163 gMC->Gsatt("TOC1","COLO",5);
1164 gMC->Gsatt("TESB","SEEN",0);
1165 gMC->Gsatt("THVM","SEEN",1);
1166 gMC->Gsatt("THVM","COLO",11);
1167 gMC->Gsatt("THVH","SEEN",0);
1168 gMC->Gsatt("TPSR","SEEN",0);
1169 gMC->Gsatt("THVL","SEEN",0);
1170 gMC->Gsatt("THVC","SEEN",0);
1171 gMC->Gsatt("THVE","SEEN",0);
1172 gMC->Gsatt("THVR","SEEN",0);
1173 gMC->Gsatt("TPSS","SEEN",0);
1174 gMC->Gsatt("TPUS","SEEN",0);
1175 gMC->Gsatt("TPLS","SEEN",0);
1176
1177 //
1178 gMC->Gdopt("hide", "on");
1179 gMC->Gdopt("shad", "on");
1180 gMC->Gsatt("*", "fill", 7);
1181 gMC->SetClipBox(".");
1182 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1183 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1184 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1185 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1186 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
1187 gMC->DefaultRange();
1188 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1189 gMC->Gdhead(1111, "Time Projection Chamber");
1190 gMC->Gdman(18, 4, "MAN");
1191 gMC->Gdopt("hide","off");
1192}
1193
1194//_____________________________________________________________________________
1195void AliTPCv4::CreateMaterials()
1196{
1197 //
1198 // Define materials for version 2 of the Time Projection Chamber
1199 //
1200
1201 AliTPC::CreateMaterials();
1202}
1203
1204//_____________________________________________________________________________
1205void AliTPCv4::Init()
1206{
1207 //
1208 // Initialises version 2 of the TPC after that it has been built
1209 //
1210
8d888a91 1211 //Int_t *idtmed = fIdtmed->GetArray();
457e2170 1212
1213 AliTPC::Init();
1214
1215
1216 fIdSens=gMC->VolId("TPC_Strip"); // one strip is always selected...
1217
1218 fIDrift=gMC->VolId("TPC_Drift");
1219 fSecOld=-100; // fake number
1220
d9888f70 1221 gMC->SetMaxNStep(-30000); // max. number of steps increased
457e2170 1222
098dfc1a 1223 // specific energy loss set in galice.cuts
457e2170 1224
1225 AliInfo("*** TPC version 4 initialized ***");
1226 AliInfo(Form("Maximum number of steps = %d",gMC->GetMaxNStep()));
1227
1228 //
1229
1230}
1231
1232//_____________________________________________________________________________
1233void AliTPCv4::StepManager()
1234{
1235 //
1236 // Called for every step in the Time Projection Chamber
1237 //
1238
1239 //
1240 // parameters used for the energy loss calculations
1241 //
1242 const Float_t kprim = 14.35; // number of primary collisions per 1 cm
1243 const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2
1244 const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation
1245
1246
1247 const Float_t kbig = 1.e10;
1248
1249 Int_t id,copy;
1250 Float_t hits[5];
1251 Int_t vol[2];
1252 TLorentzVector p;
1253
1254 vol[1]=0; // preset row number to 0
1255 //
1256 gMC->SetMaxStep(kbig);
1257
1258
1259
1260 Float_t charge = gMC->TrackCharge();
1261
1262 if(TMath::Abs(charge)<=0.) return; // take only charged particles
1263
1264 // check the sensitive volume
1265
1266 id = gMC->CurrentVolID(copy); // vol ID and copy number (starts from 1!)
1267 if(id != fIDrift && id != fIdSens) return; // not in the sensitive folume
1268
1269 gMC->TrackPosition(p);
1270 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1271 //
1272
1273 //
1274 Double_t angle = TMath::ACos(p[0]/r);
1275 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1276 //
1277 // angular segment, it is not a real sector number...
1278 //
1279 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1280 fTPCParam->GetInnerAngle());
1281 // rotate to segment "0"
1282 Float_t cos,sin;
1283 fTPCParam->AdjustCosSin(sector,cos,sin);
1284 Float_t x1=p[0]*cos + p[1]*sin;
1285 // check if within sector's limits
5bd5dbc4 1286 if((x1>=fTPCParam->GetInnerRadiusLow()&&x1<=fTPCParam->GetInnerRadiusUp())
1287 ||(x1>=fTPCParam->GetOuterRadiusLow()&&x1<=fTPCParam->GetOuterRadiusUp())){
457e2170 1288 // calculate real sector number...
1289 if (x1>fTPCParam->GetOuterRadiusLow()){
1290 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1291 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1292 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
1293 }
1294 else
1295 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1296 //
1297 // here I have a sector number
1298 //
1299
1300 vol[0]=sector;
1301 // check if change of sector
1302 if(sector != fSecOld){
1303 fSecOld=sector;
1304 // add track reference
20527578 1305 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber());
457e2170 1306 }
1307 // track is in the sensitive strip
1308 if(id == fIdSens){
1309 // track is entering the strip
1310 if (gMC->IsTrackEntering()){
1311 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1312 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1313 // row numbers are autonomous for lower and upper sectors
1314 if(vol[0] > fTPCParam->GetNInnerSector()) {
1315 vol[1] -= fTPCParam->GetNRowLow();
1316 }
1317 //
1318 if(vol[0]<fTPCParam->GetNInnerSector()&&vol[1] == 0){
1319
1320 // lower sector, row 0, because Jouri wants to have this
1321
1322 gMC->TrackMomentum(p);
1323 hits[0]=p[0];
1324 hits[1]=p[1];
1325 hits[2]=p[2];
1326 hits[3]=0.; // this hit has no energy loss
1327 // Get also the track time for pileup simulation
1328 hits[4]=gMC->TrackTime();
1329
1330 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
1331 }
1332 //
1333
1334 gMC->TrackPosition(p);
1335 hits[0]=p[0];
1336 hits[1]=p[1];
1337 hits[2]=p[2];
1338 hits[3]=0.; // this hit has no energy loss
1339 // Get also the track time for pileup simulation
1340 hits[4]=gMC->TrackTime();
1341
1342 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
1343
1344 }
1345 else return;
1346 }
1347 //-----------------------------------------------------------------
1348 // charged particle is in the sensitive drift volume
1349 //-----------------------------------------------------------------
1350
1351 if(gMC->TrackStep() > 0){
1352
1353 Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1;
20527578 1354 nel=TMath::Min(nel,30); // 30 electrons corresponds to 1 keV
457e2170 1355 //
1356 gMC->TrackPosition(p);
1357 hits[0]=p[0];
1358 hits[1]=p[1];
1359 hits[2]=p[2];
1360 hits[3]=(Float_t)nel;
1361
1362 // Add this hit
1363
1364 if (fHitType&&2){
1365 gMC->TrackMomentum(p);
1366 Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1367 Float_t precision = (momentum>0.1) ? 0.002 :0.01;
1368 fTrackHits->SetHitPrecision(precision);
1369 }
1370
1371 // Get also the track time for pileup simulation
1372 hits[4]=gMC->TrackTime();
1373
1374 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
1375
1376 } // step>0
1377 } //within sector's limits
1378 // Stemax calculation for the next step
1379 if(!gMC->IsTrackAlive()) return; // particle has disappeared
1380 Float_t pp;
1381 TLorentzVector mom;
1382 gMC->TrackMomentum(mom);
1383 Float_t ptot=mom.Rho();
1384 Float_t betaGamma = ptot/gMC->TrackMass();
1385
1386 Int_t pid=gMC->TrackPid();
1387 if((pid==kElectron || pid==kPositron) && ptot > 0.002)
1388 {
1389 pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau!
1390 }
1391 else
1392 {
1393
1394 betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg
b40afa5e 1395 pp=kprim*AliMathBase::BetheBlochAleph(betaGamma);
457e2170 1396
1397 if(TMath::Abs(charge) > 1.) pp *= (charge*charge);
1398 }
1399
1400 Double_t rnd = gMC->GetRandom()->Rndm();
1401
1402 gMC->SetMaxStep(-TMath::Log(rnd)/pp);
1403
1404
1405}
1406