1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
19 ///////////////////////////////////////////////////////////////////////////////
21 // Time Projection Chamber version 1 -- detailed TPC and fast simulation //
25 <img src="picts/AliTPCv1Class.gif">
30 ///////////////////////////////////////////////////////////////////////////////
32 #include <Riostream.h>
34 #include <TInterpreter.h>
36 #include <TVirtualMC.h>
42 #include "AliTPCDigitsArray.h"
43 #include "AliTPCParam.h"
44 #include "AliTPCParamSR.h"
46 #include "TLorentzVector.h"
48 #include "TGeoManager.h"
49 #include "TGeoVolume.h"
54 #include "TGeoCompositeShape.h"
58 //_____________________________________________________________________________
60 AliTPCv1::AliTPCv1():AliTPC(),fIdSens(0)
67 //_____________________________________________________________________________
68 AliTPCv1::AliTPCv1(const char *name, const char *title)
69 :AliTPC(name, title),fIdSens(0)
72 // Standard constructor for Time Projection Chamber
77 fTPCParam->Write(fTPCParam->GetTitle());
82 //_____________________________________________________________________________
83 void AliTPCv1::CreateGeometry()
85 //-------------------------------------------------------------
86 // Creates geometry for Time Projection Chamber version 1
87 // Detailed geometry -- Fast simulation - space points
88 // at the pad-rows centers
89 // Origin M.Kowalski, INP Cracow, Marek.Kowalski@ifj.edu.pl
90 //-----------------------------------------------------------
94 <img src="picts/AliTPC.gif">
99 <img src="picts/AliTPCv1Tree.gif">
102 //----------------------------------------------------------
103 // This geometry is written using TGeo class
104 // Firstly the shapes are defined, and only then the volumes
105 // What is recognized by the MC are volumes
106 //----------------------------------------------------------
108 // tpc - this will be the mother volume
112 // here I define a volume TPC
113 // retrive the medium name with "TPC_" as a leading string
115 TGeoPcon *tpc = new TGeoPcon(0.,360.,28); //28 sections
117 tpc->DefineSection(0,-291.,77.,278.);
118 tpc->DefineSection(1,-270,77.,278.);
120 tpc->DefineSection(2,-270.,77.,278.);
121 tpc->DefineSection(3,-262.1,77.,278.);
123 tpc->DefineSection(4,-262.1,83.1,278.);
124 tpc->DefineSection(5,-260.,83.1,278.);
126 tpc->DefineSection(6,-260.,70.,278.);
127 tpc->DefineSection(7,-259.6,70.,278.);
129 tpc->DefineSection(8,-259.6,68.1,278.);
130 tpc->DefineSection(9,-253.6,68.1,278.);
132 tpc->DefineSection(10,-253.6,68.,278.);
133 tpc->DefineSection(11,-74.0,60.8,278.);
135 tpc->DefineSection(12,-74.0,60.1,278.);
136 tpc->DefineSection(13,-73.3,60.1,278.);
138 tpc->DefineSection(14,-73.3,56.9,278.);
139 tpc->DefineSection(15,-68.5,56.9,278.);
141 tpc->DefineSection(16,-68.5,60.,278.);
142 tpc->DefineSection(17,-65.,60.,278.);
144 tpc->DefineSection(18,-65.,56.9,278.);
145 tpc->DefineSection(19,73.3,56.9,278.);
147 tpc->DefineSection(20,73.3,60.1,278.);
148 tpc->DefineSection(21,74.0,60.1,278.);
150 tpc->DefineSection(22,74.0,60.8,278.);
151 tpc->DefineSection(23,253.6,65.5,278.);
153 tpc->DefineSection(24,253.6,65.6,278.);
154 tpc->DefineSection(25,259.6,65.6,278.);
156 tpc->DefineSection(26,259.6,70.0,278.);
157 tpc->DefineSection(27,291.,77.,278.);
159 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
160 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
162 // drift volume - sensitive volume, extended beyond the
163 // endcaps, because of the alignment
165 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
166 dvol->DefineSection(0,-260.,74.5,264.4);
167 dvol->DefineSection(1,-253.6,74.5,264.4);
169 dvol->DefineSection(2,-253.6,76.6774,258.);
170 dvol->DefineSection(3,253.6,76.6774,258.);
172 dvol->DefineSection(4,253.6,74.5,264.4);
173 dvol->DefineSection(5,260.,74.5,264.4);
175 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-1");
176 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
183 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
185 tpco->DefineSection(0,-256.6,264.8,278.);
186 tpco->DefineSection(1,-253.6,264.8,278.);
188 tpco->DefineSection(2,-253.6,258.,278.);
189 tpco->DefineSection(3,250.6,258.,278.);
191 tpco->DefineSection(4,250.6,258.,275.5);
192 tpco->DefineSection(5,253.6,258.,275.5);
194 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
195 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
197 // outer containment vessel
199 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
201 tocv->DefineSection(0,-256.6,264.8,278.);
202 tocv->DefineSection(1,-253.6,264.8,278.);
204 tocv->DefineSection(2,-253.6,274.8124,278.);
205 tocv->DefineSection(3,247.6,274.8124,278.);
207 tocv->DefineSection(4,247.6,270.4,278.);
208 tocv->DefineSection(5,250.6,270.4,278.);
210 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
211 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
213 TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy
214 TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar
215 TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2
216 TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex
218 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
219 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
220 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
221 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
223 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
224 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
225 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
226 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
228 //-------------------------------------------------------
229 // Tpc Outer Field Cage
230 // daughters - composite (sandwich)
231 //-------------------------------------------------------
233 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
235 tofc->DefineSection(0,-253.6,258.,269.6);
236 tofc->DefineSection(1,-250.6,258.,269.6);
238 tofc->DefineSection(2,-250.6,258.,260.0676);
239 tofc->DefineSection(3,250.6,258.,260.0676);
241 tofc->DefineSection(4,250.6,258.,275.5);
242 tofc->DefineSection(5,253.6,258.,275.5);
244 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
246 TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar
247 TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3
248 TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex
250 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
252 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
253 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
254 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
256 // outer part - positioning
258 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);
260 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);
262 v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1);
264 v2->AddNode(v3,1); v2->AddNode(v4,1);
267 //--------------------------------------------------------------------
268 // Tpc Inner INsulator (CO2)
269 // the cones, the central drum and the inner f.c. sandwich with a piece
270 // of the flane will be placed in the TPC
271 //--------------------------------------------------------------------
272 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
274 tpci->DefineSection(0,-253.6,68.4,76.6774);
275 tpci->DefineSection(1,-74.0,61.2,76.6774);
277 tpci->DefineSection(2,74.0,61.2,76.6774);
279 tpci->DefineSection(3,253.6,65.9,76.6774);
281 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
283 // now the inner field cage - only part of flanges (2 copies)
285 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
286 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
288 //---------------------------------------------------------
289 // Tpc Inner Containment vessel - Muon side
290 //---------------------------------------------------------
291 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
293 tcms->DefineSection(0,-259.1,68.1,74.2);
294 tcms->DefineSection(1,-253.6,68.1,74.2);
296 tcms->DefineSection(2,-253.6,68.1,68.4);
297 tcms->DefineSection(3,-74.0,60.9,61.2);
299 tcms->DefineSection(4,-74.0,60.1,61.2);
300 tcms->DefineSection(5,-73.3,60.1,61.2);
302 tcms->DefineSection(6,-73.3,56.9,61.2);
303 tcms->DefineSection(7,-73.0,56.9,61.2);
305 tcms->DefineSection(8,-73.0,56.9,58.8);
306 tcms->DefineSection(9,-71.3,56.9,58.8);
308 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
309 //-----------------------------------------------
310 // inner containment vessel - shaft side
311 //-----------------------------------------------
312 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
314 tcss->DefineSection(0,71.3,56.9,58.8);
315 tcss->DefineSection(1,73.0,56.9,58.8);
317 tcss->DefineSection(2,73.0,56.9,61.2);
318 tcss->DefineSection(3,73.3,56.9,61.2);
320 tcss->DefineSection(4,73.3,60.1,61.2);
321 tcss->DefineSection(5,74.0,60.1,61.2);
323 tcss->DefineSection(6,74.0,60.9,61.2);
324 tcss->DefineSection(7,253.6,65.6,65.9);
326 tcss->DefineSection(8,253.6,65.6,74.2);
327 tcss->DefineSection(9,258.1,65.6,74.2);
329 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
330 //-----------------------------------------------
332 // define 4 parts and make an assembly
333 //-----------------------------------------------
334 // part1 - Al - 2 copies
335 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
336 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
337 // sandwich - outermost parts - 2 copies
338 TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns
339 TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns
340 TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns
341 TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm
343 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
344 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
345 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
346 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
348 // middle parts - 2 copies
349 TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns
350 TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns
351 TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns
352 TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm
354 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
355 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
356 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
357 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
358 // central part - 1 copy
359 TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns
360 TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns
361 TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm
363 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
364 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
365 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
367 // inner part - positioning
369 // creating a sandwich
370 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
372 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
374 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
376 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC");
378 tv100->AddNode(tv10,1);
379 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75));
380 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75));
381 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925));
382 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
383 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
384 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
386 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
387 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
388 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
389 v9->AddNode(tv100,1);
395 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
396 cfl->DefineSection(0,-71.1,59.7,61.2);
397 cfl->DefineSection(1,-68.6,59.7,61.2);
399 cfl->DefineSection(2,-68.6,60.6324,61.2);
400 cfl->DefineSection(3,68.6,60.6324,61.2);
402 cfl->DefineSection(4,68.6,59.7,61.2);
403 cfl->DefineSection(5,71.1,59.7,61.2);
405 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
407 TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1);
408 TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1);
409 TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1);
411 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
412 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
413 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
414 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex
416 // seals for central drum 2 copies
418 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
419 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
420 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
421 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
422 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
425 TGeoPcon *se = new TGeoPcon(0.,360.,6);
426 se->DefineSection(0,-72.8,59.7,61.2);
427 se->DefineSection(1,-72.3,59.7,61.2);
429 se->DefineSection(2,-72.3,58.85,61.2);
430 se->DefineSection(3,-71.6,58.85,61.2);
432 se->DefineSection(4,-71.6,59.7,61.2);
433 se->DefineSection(5,-71.3,59.7,61.2);
435 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
437 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
438 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
440 // define reflection matrix
442 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
444 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1);
446 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
447 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
448 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
450 // central membrane - 2 rings and a mylar membrane - assembly
452 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
453 TGeoTube *oh = new TGeoTube(250.,256.,.5);
454 TGeoTube *mem = new TGeoTube(84.05,250,0.01);
455 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
456 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
457 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
459 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
465 // end caps - they are make as an assembly of single segments
466 // containing both readout chambers
468 Double_t openingAngle = 10.*TMath::DegToRad();
469 Double_t thick=1.5; // rib
470 Double_t shift = thick/TMath::Sin(openingAngle);
472 Double_t lowEdge = 86.3; // hole in the wheel
473 Double_t upEdge = 240.4; // hole in the wheel
475 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
477 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
479 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
480 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
482 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
483 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
485 Double_t ys = shift*TMath::Sin(openingAngle);
486 Double_t xs = shift*TMath::Cos(openingAngle);
487 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
488 tr->RegisterYourself();
489 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
490 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
491 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
492 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
493 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
494 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
495 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
497 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
503 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
504 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
506 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
507 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
508 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
510 Double_t tga = (19.8328-12.3742)/39.3;
512 xmin = 9.55*tga+12.3742;
513 xmax = 9.95*tga+12.3742;
514 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
515 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
516 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
517 xmin=19.4*tga+12.3742;
518 xmax=19.9*tga+12.3742;
519 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
520 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
521 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
522 xmin=29.35*tga+12.3742;
523 xmax=29.75*tga+12.3742;
524 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
525 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
526 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
528 // holes for connectors
530 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
531 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
532 TString fileName(gSystem->Getenv("ALICE_ROOT"));
533 fileName += "/TPC/conn_iroc.dat";
535 in.open(fileName.Data(), ios_base::in); // asci file
536 for(Int_t i =0;i<86;i++){
541 TGeoRotation *rrr = new TGeoRotation();
543 TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr);
544 ibdv->AddNode(connv,i+1,trans);
548 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
550 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
551 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
552 tr1->RegisterYourself();
553 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
554 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
556 // pad plane and wire fixations
558 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
559 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
560 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
561 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
562 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
563 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
564 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
566 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
568 iroc->AddNode(ibdv,1);
569 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
570 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
571 tga =(23.3521-14.5974)/49.65;
572 Double_t xx = 24.825*tga+14.5974-0.6;
573 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
574 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
578 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
579 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
580 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
581 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
582 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
584 tga=(38.5084-20.2938)/99.3;
585 xmin=tga*10.2+20.2938;
586 xmax=tga*10.6+20.2938;
587 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
588 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
590 xmin=22.55*tga+20.2938;
591 xmax=24.15*tga+20.2938;
592 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
593 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
595 xmin=36.1*tga+20.2938;
596 xmax=36.5*tga+20.2938;
597 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
598 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
600 xmin=49.0*tga+20.2938;
601 xmax=50.6*tga+20.2938;
602 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
603 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
605 xmin=63.6*tga+20.2938;
606 xmax=64.0*tga+20.2938;
607 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
608 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
610 xmin=75.5*tga+20.2938;
611 xmax=77.15*tga+20.2938;
612 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
613 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
615 xmin=88.7*tga+20.2938;
616 xmax=89.1*tga+20.2938;
617 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
618 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
620 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
621 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
622 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
623 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
624 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
625 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
626 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
628 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
629 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
630 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
631 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
632 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
634 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
635 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
636 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
637 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
638 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
640 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
641 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
642 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
643 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
644 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
645 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
646 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
647 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
649 // holes for connectors
651 fileName = gSystem->Getenv("ALICE_ROOT");
652 fileName += "/TPC/conn_oroc.dat";
653 in.open(fileName.Data(), ios_base::in); // asci file
654 for(Int_t i =0;i<78;i++){
657 Double_t x1,z1,x2,z2;
659 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
660 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
662 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
664 TGeoRotation *rr = new TGeoRotation();
668 TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr);
669 TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr);
670 obdv->AddNode(connv,i+1,trans1);
671 obdv->AddNode(connv,i+79,trans2);
675 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
676 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
677 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
678 tr5->RegisterYourself();
679 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
680 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
682 // pad plane and wire fixations
684 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
685 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
687 tga=(43.5239-23.3874)/114.2;
688 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
689 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
690 xx = 57.1*tga+23.3874-0.7;
691 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
692 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
694 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
696 oroc->AddNode(obdv,1);
697 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
698 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
699 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
700 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
702 // now iroc and oroc are placed into a sector...
704 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
705 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
706 TGeoRotation rot1("rot1",90.,90.,0.);
707 TGeoRotation rot2("rot2");
709 TGeoRotation *rot = new TGeoRotation("rot");
713 x0=110.2*TMath::Cos(openingAngle);
714 y0=110.2*TMath::Sin(openingAngle);
715 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
716 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
717 x0=188.45*TMath::Cos(openingAngle);
718 y0=188.45*TMath::Sin(openingAngle);
719 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
720 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
724 secta->AddNode(ch,1);
725 secta->AddNode(iroc,1,combi1a);
726 secta->AddNode(oroc,1,combi2a);
730 sectc->AddNode(ch,1);
731 sectc->AddNode(iroc,1,combi1c);
732 sectc->AddNode(oroc,1,combi2c);
734 // now I try to make wheels...
736 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
737 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
739 for(Int_t i =0;i<18;i++){
740 Double_t phi = (20.*i);
741 TGeoRotation *r = new TGeoRotation();
743 wheela->AddNode(secta,i+1,r);
744 wheelc->AddNode(sectc,i+1,r);
747 // wheels in the drift volume!
748 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
749 v9->AddNode(wheela,1,combi3);
750 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
752 //_____________________________________________________________
753 // service support wheel
754 //_____________________________________________________________
755 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
756 sw->DefineSection(0,-4.,80.5,251.75);
757 sw->DefineSection(1,4.,80.5,251.75);
758 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
761 shift = thick/TMath::Sin(openingAngle);
762 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
763 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
764 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
765 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
767 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
768 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
769 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
770 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
771 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
776 ys = shift*TMath::Sin(openingAngle);
777 xs = shift*TMath::Cos(openingAngle);
778 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
780 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
781 co->DefineSection(0,-0.5,77.,255.25);
782 co->DefineSection(1,0.5,77.,255.25);
783 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
785 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
786 shift=4./TMath::Sin(openingAngle);
787 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
788 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
790 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
792 ys = shift*TMath::Sin(openingAngle);
793 xs = shift*TMath::Cos(openingAngle);
794 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
796 // Sector as an Assembly
798 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
799 swhs->AddNode(swv,1);
800 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
801 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
803 // SSW as an Assembly of sectors
805 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
806 for(Int_t i =0;i<18;i++){
807 Double_t phi = (20.*i);
808 TGeoRotation *r = new TGeoRotation();
810 swheel->AddNode(swhs,i+1,r);
812 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
813 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
816 TGeoMedium *m8 = gGeoManager->GetMedium("TPC_Ne-CO2-2");
818 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
821 gGeoManager->Volume("TPC_Strip","PGON",m8->GetId(),upar);
822 upar=new Double_t [10];
831 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
838 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
839 gGeoManager->Node("TPC_Strip",totrows+1,
840 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
845 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
846 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
851 gGeoManager->Node("TPC_Strip",i,
852 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
853 gGeoManager->Node("TPC_Strip",totrows+i,
854 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
857 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
858 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
863 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
864 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
865 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
866 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
869 //----------------------------------------------------------
870 // TPc Support Rods - MAKROLON
871 //----------------------------------------------------------
872 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
873 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
874 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
875 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
876 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
877 // upper and lower rods differ in length!
880 gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar);
881 upar=new Double_t [3];
886 //HV rods - makrolon + 0.58cm (diameter) Cu
887 TGeoTube *hvr = new TGeoTube(0.,2.2,126.64);
888 TGeoTube *hvc = new TGeoTube(0.,0.29,126.64);
890 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
891 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
892 hvrv->AddNode(hvcv,1);
896 TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner
897 TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer
898 TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner
899 TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer
901 TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10);
902 TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10);
903 TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11);
904 TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11);
906 // ceramic rod with water
908 criv->AddNode(cwiv,1);
909 crov->AddNode(cwov,1);
911 TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner
912 TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer
916 TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12);
917 TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12);
919 // resistor rods assembly
921 TGeoRotation *rotr = new TGeoRotation("rotr");
924 TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner
925 TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner
927 TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6);
928 TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6);
931 TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I");
932 TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O");
933 rrin->AddNode(rriv,1);
934 rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.));
935 rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.));
936 rrin->AddNode(priv,1);
938 rrou->AddNode(rrov,1);
939 rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.));
940 rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.));
941 rrou->AddNode(prov,1);
942 for(Int_t i=0;i<18;i++){
945 angle=TMath::DegToRad()*20.*(Double_t)i;
947 x=r * TMath::Cos(angle);
948 y=r * TMath::Sin(angle);
949 upar[2]=126.64; //lower
952 v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A
953 v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
956 gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft
957 gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon
962 x=r * TMath::Cos(angle);
963 y=r * TMath::Sin(angle);
964 upar[2]=126.54; //upper
968 //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only
969 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only
970 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
973 v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A
974 v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C
978 gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
979 gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
981 gGeoManager->Node("TPC_Rod",i+36,"TPC_Drift",x,y,z,0,kTRUE,upar,3);
982 gGeoManager->Node("TPC_Rod",i+54,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);
985 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
986 alice->AddNode(v1,1);
991 //_____________________________________________________________________________
992 void AliTPCv1::CreateMaterials()
995 // Define materials for Time Projection Chamber
997 AliTPC::CreateMaterials();
1000 //_____________________________________________________________________________
1001 void AliTPCv1::Init()
1004 // Initialises TPC detector after it has been created
1007 fIdSens=gMC->VolId("TPC_Strip"); // sensitive strip
1009 printf("%s: *** TPC version 1 initialized***\n",ClassName());
1011 // printf("TPC version 1 initialized\n");
1014 //_____________________________________________________________________________
1015 void AliTPCv1::StepManager()
1018 // Called at every step in the Time Projection Chamber
1026 id = gMC->CurrentVolID(copy);
1027 if(id!=fIdSens) return;
1028 if(gMC->TrackCharge() && gMC->IsTrackEntering()) {
1031 // Only charged tracks entering the sensitive volume
1034 gMC->TrackPosition(p);
1035 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1039 Double_t angle = TMath::ACos(p[0]/r);
1040 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1042 // angular segment, it is not a real sector number...
1044 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1045 fTPCParam->GetInnerAngle());
1046 // rotate to segment "0"
1048 fTPCParam->AdjustCosSin(sector,cos,sin);
1049 Float_t x1 = p[0]*cos + p[1]*sin;
1050 Float_t y1 = TMath::Abs(-p[0]*sin + p[1]*cos);
1051 // calculate real sector number...
1052 if (x1>fTPCParam->GetOuterRadiusLow()){
1053 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1054 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1055 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
1058 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1060 // here I have a sector number
1064 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1065 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1066 // row numbers are autonomous for lower and upper sectors
1067 if(vol[0] > fTPCParam->GetNInnerSector()) {
1068 vol[1] -= fTPCParam->GetNRowLow();
1070 Double_t range = (sector<36) ? fTPCParam->GetYInner(vol[1]) :
1071 fTPCParam->GetYOuter(vol[1]);
1072 if(y1>range) return;
1075 // because Jouri wants to have this
1077 gMC->TrackMomentum(p);
1081 hits[3]=0.; // this hit has no energy loss
1082 // Get also the track time for pileup simulation
1083 hits[4]=gMC->TrackTime();
1085 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
1087 gMC->TrackPosition(p);
1088 for(i=0;i<3;++i) hits[i]=p[i];
1089 hits[3]=1; //I'd like to have something positive here (I.Belikov)
1090 // Get also the track time for pileup simulation
1091 hits[4]=gMC->TrackTime();
1093 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); // M.I.
1095 }// track entering sensitive strip
1098 //_____________________________________________________________________________