Constant extrapolation for gain calibration
[u/mrichter/AliRoot.git] / TPC / AliTPCv2.cxx
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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
88cb7938 16/* $Id$ */
4c039060 17
73042f01 18//
fe4da5cc 19///////////////////////////////////////////////////////////////////////////////
20// //
21// Time Projection Chamber version 2 -- detailed TPC and slow simulation //
22// //
23//Begin_Html
24/*
1439f98e 25<img src="picts/AliTPCv2Class.gif">
fe4da5cc 26*/
27//End_Html
28// //
29// //
30///////////////////////////////////////////////////////////////////////////////
116cbefd 31
d899e254 32//#include <stdlib.h>
fe4da5cc 33
88cb7938 34#include <TLorentzVector.h>
116cbefd 35#include <TPDGCode.h>
d9e80aca 36#include <TString.h>
f77f13c8 37#include "AliLog.h"
b40afa5e 38#include "AliMathBase.h"
e6add757 39#include "AliTrackReference.h"
73042f01 40#include "AliTPCParam.h"
4ed5dced 41#include "AliTPCTrackHitsV2.h"
116cbefd 42#include "AliTPCv2.h"
cdf69b9a 43#include "AliGeomManager.h"
c1637e41 44#include "TGeoVolume.h"
45#include "TGeoPcon.h"
46#include "TGeoTube.h"
47#include "TGeoPgon.h"
48#include "TGeoTrd1.h"
49#include "TGeoCompositeShape.h"
50#include "TGeoPara.h"
1ac29fc4 51#include "TGeoPhysicalNode.h"
0f788f87 52#include "TGeoHalfSpace.h"
0f2ff24c 53#include "TTreeStream.h"
1ac29fc4 54
fe4da5cc 55ClassImp(AliTPCv2)
56
57//_____________________________________________________________________________
58AliTPCv2::AliTPCv2(const char *name, const char *title) :
e046d791 59 AliTPC(name, title),
60 fIdSens(0),
61 fIDrift(0),
62 fSecOld(0)
fe4da5cc 63{
64 //
65 // Standard constructor for Time Projection Chamber version 2
66 //
37831078 67
73042f01 68
c1637e41 69 SetBufferSize(128000);
73042f01 70
73042f01 71
db2fdcfb 72// if (fTPCParam)
73// fTPCParam->Write(fTPCParam->GetTitle());
fe4da5cc 74}
75
76//_____________________________________________________________________________
77void AliTPCv2::CreateGeometry()
78{
79 //
80 // Create the geometry of Time Projection Chamber version 2
81 //
82 //Begin_Html
83 /*
37831078 84 <img src="picts/AliTPC.gif">
fe4da5cc 85 */
86 //End_Html
87 //Begin_Html
88 /*
1439f98e 89 <img src="picts/AliTPCv2Tree.gif">
fe4da5cc 90 */
91 //End_Html
92
c1637e41 93 //----------------------------------------------------------
94 // This geometry is written using TGeo class
95 // Firstly the shapes are defined, and only then the volumes
96 // What is recognized by the MC are volumes
97 //----------------------------------------------------------
37831078 98 //
c1637e41 99 // tpc - this will be the mother volume
37831078 100 //
79575d04 101
37831078 102 //
c1637e41 103 // here I define a volume TPC
104 // retrive the medium name with "TPC_" as a leading string
37831078 105 //
efe14311 106 TGeoPcon *tpc = new TGeoPcon(0.,360.,24); //24 sections
37831078 107 //
78134e48 108 tpc->DefineSection(0,-291.,77.,278.);
109 tpc->DefineSection(1,-270,77.,278.);
37831078 110 //
78134e48 111 tpc->DefineSection(2,-270.,77.,278.);
112 tpc->DefineSection(3,-259.6,70.,278.);
37831078 113 //
78134e48 114 tpc->DefineSection(4,-259.6,68.1,278.);
115 tpc->DefineSection(5,-253.6,68.1,278.);
37831078 116 //
78134e48 117 tpc->DefineSection(6,-253.6,68.,278.);
118 tpc->DefineSection(7,-74.0,60.8,278.);
37831078 119 //
78134e48 120 tpc->DefineSection(8,-74.0,60.1,278.);
121 tpc->DefineSection(9,-73.3,60.1,278.);
37831078 122 //
78134e48 123 tpc->DefineSection(10,-73.3,56.9,278.);
efe14311 124 tpc->DefineSection(11,-68.5,56.9,278.);
37831078 125 //
efe14311 126 tpc->DefineSection(12,-68.5,60.,278.);
127 tpc->DefineSection(13,-65.,60.,278.);
37831078 128 //
efe14311 129 tpc->DefineSection(14,-65.,56.9,278.);
130 tpc->DefineSection(15,73.3,56.9,278.);
78134e48 131 //
efe14311 132 tpc->DefineSection(16,73.3,60.1,278.);
133 tpc->DefineSection(17,74.0,60.1,278.);
78134e48 134 //
efe14311 135 tpc->DefineSection(18,74.0,60.8,278.);
136 tpc->DefineSection(19,253.6,65.5,278.);
137 //
138 tpc->DefineSection(20,253.6,65.6,278.);
139 tpc->DefineSection(21,259.6,65.6,278.);
140 //
141 tpc->DefineSection(22,259.6,70.0,278.);
142 tpc->DefineSection(23,291.,77.,278.);
37831078 143 //
c1637e41 144 TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air");
145 TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1);
79575d04 146 //
c1637e41 147 // drift volume - sensitive volume, extended beyond the
148 // endcaps, because of the alignment
37831078 149 //
c1637e41 150 TGeoPcon *dvol = new TGeoPcon(0.,360.,6);
151 dvol->DefineSection(0,-260.,74.5,264.4);
152 dvol->DefineSection(1,-253.6,74.5,264.4);
37831078 153 //
c1637e41 154 dvol->DefineSection(2,-253.6,76.6774,258.);
155 dvol->DefineSection(3,253.6,76.6774,258.);
37831078 156 //
c1637e41 157 dvol->DefineSection(4,253.6,74.5,264.4);
158 dvol->DefineSection(5,260.,74.5,264.4);
37831078 159 //
c1637e41 160 TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-2");
161 TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5);
37831078 162 //
c1637e41 163 v1->AddNode(v9,1);
37831078 164 //
c1637e41 165 // outer insulator
720b23b8 166 //
c1637e41 167 TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator
79575d04 168 //
c1637e41 169 tpco->DefineSection(0,-256.6,264.8,278.);
170 tpco->DefineSection(1,-253.6,264.8,278.);
171 //
172 tpco->DefineSection(2,-253.6,258.,278.);
173 tpco->DefineSection(3,250.6,258.,278.);
174 //
175 tpco->DefineSection(4,250.6,258.,275.5);
176 tpco->DefineSection(5,253.6,258.,275.5);
177 //
178 TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2");
179 TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2);
180 //
c449e944 181 TGeoRotation *segrot;//segment rotations
182 //
c1637e41 183 // outer containment vessel
184 //
185 TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel
186 //
187 tocv->DefineSection(0,-256.6,264.8,278.);
188 tocv->DefineSection(1,-253.6,264.8,278.);
189 //
190 tocv->DefineSection(2,-253.6,274.8124,278.);
191 tocv->DefineSection(3,247.6,274.8124,278.);
192 //
193 tocv->DefineSection(4,247.6,270.4,278.);
194 tocv->DefineSection(5,250.6,270.4,278.);
195 //
196 TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al");
197 TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3);
198 //
c449e944 199 TGeoTubeSeg *to1 = new TGeoTubeSeg(274.8174,277.995,252.1,0.,59.9); //epoxy
200 TGeoTubeSeg *to2 = new TGeoTubeSeg(274.8274,277.985,252.1,0.,59.9); //tedlar
201 TGeoTubeSeg *to3 = new TGeoTubeSeg(274.8312,277.9812,252.1,0.,59.9);//prepreg2
202 TGeoTubeSeg *to4 = new TGeoTubeSeg(274.9062,277.9062,252.1,0.,59.9);//nomex
203 TGeoTubeSeg *tog5 = new TGeoTubeSeg(274.8174,277.995,252.1,59.9,60.);//epoxy
c1637e41 204 //
205 TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy");
206 TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar");
207 TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2");
208 TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex");
209 //
210 TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1);
211 TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2);
212 TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3);
213 TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4);
c449e944 214 TGeoVolume *togv5 = new TGeoVolume("TPC_OCVG5",tog5,sm1);
215 //-------------------------------------------------------
37831078 216 // Tpc Outer Field Cage
c1637e41 217 // daughters - composite (sandwich)
37831078 218 //-------------------------------------------------------
1283eee5 219
c1637e41 220 TGeoPcon *tofc = new TGeoPcon(0.,360.,6);
79575d04 221 //
c1637e41 222 tofc->DefineSection(0,-253.6,258.,269.6);
223 tofc->DefineSection(1,-250.6,258.,269.6);
37831078 224 //
c1637e41 225 tofc->DefineSection(2,-250.6,258.,260.0676);
226 tofc->DefineSection(3,250.6,258.,260.0676);
37831078 227 //
c1637e41 228 tofc->DefineSection(4,250.6,258.,275.5);
229 tofc->DefineSection(5,253.6,258.,275.5);
37831078 230 //
c1637e41 231 TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3);
232 //sandwich
c449e944 233 TGeoTubeSeg *tf1 = new TGeoTubeSeg(258.0,260.0676,252.1,0.,59.9); //tedlar
234 TGeoTubeSeg *tf2 = new TGeoTubeSeg(258.0038,260.0638,252.1,0.,59.9); //prepreg3
235 TGeoTubeSeg *tf3 = new TGeoTubeSeg(258.0338,260.0338,252.1,0.,59.9);//nomex
236 TGeoTubeSeg *tfg4 = new TGeoTubeSeg(258.0,260.0676,252.1,59.9,60.); //epoxy glue
37831078 237 //
c1637e41 238 TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3");
37831078 239 //
c1637e41 240 TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2);
241 TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5);
242 TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4);
c449e944 243 TGeoVolume *tfg4v = new TGeoVolume("TPC_OFCG4",tfg4,sm1);
37831078 244 //
c1637e41 245 // outer part - positioning
37831078 246 //
c449e944 247 tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1);//ocv
248 //
249 tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1);//ofc
37831078 250 //
c449e944 251 TGeoVolumeAssembly *t200 = new TGeoVolumeAssembly("TPC_OCVSEG");
252 TGeoVolumeAssembly *t300 = new TGeoVolumeAssembly("TPC_OFCSEG");
37831078 253 //
c449e944 254 // assembly OCV and OFC
255 //
256 // 1st - no rotation
257 t200->AddNode(tov1,1); t200->AddNode(togv5,1);
258 t300->AddNode(tf1v,1); t300->AddNode(tfg4v,1);
259 // 2nd - rotation 60 deg
260 segrot = new TGeoRotation();
261 segrot->RotateZ(60.);
262 t200->AddNode(tov1,2,segrot); t200->AddNode(togv5,2,segrot);
263 t300->AddNode(tf1v,2,segrot); t300->AddNode(tfg4v,2,segrot);
264 // 3rd rotation 120 deg
265 segrot = new TGeoRotation();
266 segrot->RotateZ(120.);
267 t200->AddNode(tov1,3,segrot); t200->AddNode(togv5,3,segrot);
268 t300->AddNode(tf1v,3,segrot); t300->AddNode(tfg4v,3,segrot);
269 //4th rotation 180 deg
270 segrot = new TGeoRotation();
271 segrot->RotateZ(180.);
272 t200->AddNode(tov1,4,segrot); t200->AddNode(togv5,4,segrot);
273 t300->AddNode(tf1v,4,segrot); t300->AddNode(tfg4v,4,segrot);
274 //5th rotation 240 deg
275 segrot = new TGeoRotation();
276 segrot->RotateZ(240.);
277 t200->AddNode(tov1,5,segrot); t200->AddNode(togv5,5,segrot);
278 t300->AddNode(tf1v,5,segrot); t300->AddNode(tfg4v,5,segrot);
279 //6th rotation 300 deg
280 segrot = new TGeoRotation();
281 segrot->RotateZ(300.);
282 t200->AddNode(tov1,6,segrot); t200->AddNode(togv5,6,segrot);
283 t300->AddNode(tf1v,6,segrot); t300->AddNode(tfg4v,6,segrot);
284 //
285 v3->AddNode(t200,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(t300,1);
37831078 286 //
c1637e41 287 v2->AddNode(v3,1); v2->AddNode(v4,1);
37831078 288 //
c1637e41 289 v1->AddNode(v2,1);
290 //--------------------------------------------------------------------
291 // Tpc Inner INsulator (CO2)
292 // the cones, the central drum and the inner f.c. sandwich with a piece
293 // of the flane will be placed in the TPC
294 //--------------------------------------------------------------------
295 TGeoPcon *tpci = new TGeoPcon(0.,360.,4);
37831078 296 //
c1637e41 297 tpci->DefineSection(0,-253.6,68.4,76.6774);
298 tpci->DefineSection(1,-74.0,61.2,76.6774);
37831078 299 //
c1637e41 300 tpci->DefineSection(2,74.0,61.2,76.6774);
37831078 301 //
c1637e41 302 tpci->DefineSection(3,253.6,65.9,76.6774);
37831078 303 //
c1637e41 304 TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2);
37831078 305 //
c1637e41 306 // now the inner field cage - only part of flanges (2 copies)
37831078 307 //
c1637e41 308 TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5);
309 TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3);
37831078 310 //
c1637e41 311 //---------------------------------------------------------
312 // Tpc Inner Containment vessel - Muon side
79575d04 313 //---------------------------------------------------------
c1637e41 314 TGeoPcon *tcms = new TGeoPcon(0.,360.,10);
37831078 315 //
c1637e41 316 tcms->DefineSection(0,-259.1,68.1,74.2);
317 tcms->DefineSection(1,-253.6,68.1,74.2);
37831078 318 //
c1637e41 319 tcms->DefineSection(2,-253.6,68.1,68.4);
320 tcms->DefineSection(3,-74.0,60.9,61.2);
37831078 321 //
c1637e41 322 tcms->DefineSection(4,-74.0,60.1,61.2);
323 tcms->DefineSection(5,-73.3,60.1,61.2);
37831078 324 //
c1637e41 325 tcms->DefineSection(6,-73.3,56.9,61.2);
326 tcms->DefineSection(7,-73.0,56.9,61.2);
37831078 327 //
c1637e41 328 tcms->DefineSection(8,-73.0,56.9,58.8);
329 tcms->DefineSection(9,-71.3,56.9,58.8);
37831078 330 //
c1637e41 331 TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3);
332 //-----------------------------------------------
333 // inner containment vessel - shaft side
334 //-----------------------------------------------
335 TGeoPcon *tcss = new TGeoPcon(0.,360.,10);
37831078 336 //
c1637e41 337 tcss->DefineSection(0,71.3,56.9,58.8);
338 tcss->DefineSection(1,73.0,56.9,58.8);
1283eee5 339 //
c1637e41 340 tcss->DefineSection(2,73.0,56.9,61.2);
341 tcss->DefineSection(3,73.3,56.9,61.2);
342 //
343 tcss->DefineSection(4,73.3,60.1,61.2);
344 tcss->DefineSection(5,74.0,60.1,61.2);
1283eee5 345 //
c1637e41 346 tcss->DefineSection(6,74.0,60.9,61.2);
347 tcss->DefineSection(7,253.6,65.6,65.9);
37831078 348 //
c1637e41 349 tcss->DefineSection(8,253.6,65.6,74.2);
350 tcss->DefineSection(9,258.1,65.6,74.2);
1283eee5 351 //
c1637e41 352 TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3);
353 //-----------------------------------------------
354 // Inner field cage
355 // define 4 parts and make an assembly
356 //-----------------------------------------------
357 // part1 - Al - 2 copies
358 TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75);
359 TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3);
360 // sandwich - outermost parts - 2 copies
1283eee5 361 //
878dd3f2 362 // segment outermost
363 //
d56d7df1 364 TGeoTubeSeg *t2 = new TGeoTubeSeg(76.6774,78.845,74.175,350.,109.4); // tedlar 38 microns
365 TGeoTubeSeg *t3 = new TGeoTubeSeg(76.6812,78.8412,74.175,350.,109.4); // prepreg2 500 microns
366 TGeoTubeSeg *t4 = new TGeoTubeSeg(76.7312,78.7912,74.175,350.,109.4); // prepreg3 300 microns
367 TGeoTubeSeg *t5 = new TGeoTubeSeg(76.7612,78.7612,74.175,350.,109.4); // nomex 2 cm
368 TGeoTubeSeg *tepox1 = new TGeoTubeSeg(76.6774,78.845,74.175,109.4,110.);//epoxy
e079adac 369 TGeoTubeSeg *tpr1 = new TGeoTubeSeg(78.845,78.885,74.175,109.,111.);
878dd3f2 370
371 // volumes for the outer part
c1637e41 372 TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2);
373 TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3);
374 TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5);
375 TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4);
878dd3f2 376 TGeoVolume *tvep1 = new TGeoVolume("TPC_IFEPOX1",tepox1,sm1);
377 TGeoVolume *tvpr1 = new TGeoVolume("TPC_PRSTR1",tpr1,sm2);
37831078 378 //
c1637e41 379 // middle parts - 2 copies
79575d04 380 //
878dd3f2 381 // segment middle
382 //
d56d7df1 383 TGeoTubeSeg *t6 = new TGeoTubeSeg(76.6774,78.795,5.,350.,109.4); // tedlar 38 microns
384 TGeoTubeSeg *t7 = new TGeoTubeSeg(76.6812,78.7912,5.,350.,109.4); // prepreg2 250 microns
385 TGeoTubeSeg *t8 = new TGeoTubeSeg(76.7062,78.7662,5.,350.,109.4); // prepreg3 300 microns
386 TGeoTubeSeg *t9 = new TGeoTubeSeg(76.7362,78.7362,5.,350.,109.4); // nomex 2 cm
387 TGeoTubeSeg *tepox2 = new TGeoTubeSeg(76.6774,78.795,5.,109.4,110.);//epoxy
e079adac 388 TGeoTubeSeg *tpr2 = new TGeoTubeSeg(78.795,78.835,5.,109.,111.);
878dd3f2 389 // volumes for the middle part
c1637e41 390 TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2);
391 TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3);
392 TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5);
393 TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4);
878dd3f2 394 TGeoVolume *tvep2 = new TGeoVolume("TPC_IFEPOX2",tepox2,sm1);
395 TGeoVolume *tvpr2 = new TGeoVolume("TPC_PRSTR2",tpr2,sm2);
c1637e41 396 // central part - 1 copy
878dd3f2 397 //
398 // segment central part
399 //
d56d7df1 400 TGeoTubeSeg *t10 = new TGeoTubeSeg(76.6774,78.785,93.75,350.,109.4); // tedlar 38 microns
401 TGeoTubeSeg *t11 = new TGeoTubeSeg(76.6812,78.7812,93.75,350.,109.4); // prepreg3 500 microns
402 TGeoTubeSeg *t12 = new TGeoTubeSeg(76.7312,78.7312,93.75,350.,109.4); // nomex 2 cm
403 TGeoTubeSeg *tepox3 = new TGeoTubeSeg(76.6774,78.785,93.75,109.4,110.);//epoxy
e079adac 404 TGeoTubeSeg *tpr3 = new TGeoTubeSeg(78.785,78.825,93.75,109.,111.);
878dd3f2 405 // volumes for the central part
c1637e41 406 TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2);
407 TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5);
408 TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4);
878dd3f2 409 TGeoVolume *tvep3 = new TGeoVolume("TPC_IFEPOX3",tepox3,sm1);
410 TGeoVolume *tvpr3 = new TGeoVolume("TPC_PRSTR3",tpr3,sm2);
79575d04 411 //
878dd3f2 412 // creating a sandwich for the outer par,t tv2 is the mother
79575d04 413 //
c1637e41 414 tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1);
79575d04 415 //
878dd3f2 416 // creating a sandwich for the middle part, tv6 is the mother
417 //
c1637e41 418 tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1);
79575d04 419 //
878dd3f2 420 // creating a sandwich for the central part, tv10 is the mother
421 //
c1637e41 422 tv10->AddNode(tv11,1); tv11->AddNode(tv12,1);
37831078 423 //
878dd3f2 424 TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); // ifc itself - 3 segments
878dd3f2 425
37831078 426 //
878dd3f2 427 // first segment - no rotation
428 //
429 // central
430 tv100->AddNode(tv10,1); //sandwich
431 tv100->AddNode(tvep3,1);//epoxy
432 tv100->AddNode(tvpr3,1);//prepreg strip
433 // middle
434 tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); //sandwich1
435 tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); // sandwich2
436 tv100->AddNode(tvep2,1,new TGeoTranslation(0.,0.,-98.75)); //epoxy
437 tv100->AddNode(tvep2,2,new TGeoTranslation(0.,0.,98.75)); //epoxy
438 tv100->AddNode(tvpr2,1,new TGeoTranslation(0.,0.,-98.75));//prepreg strip
439 tv100->AddNode(tvpr2,2,new TGeoTranslation(0.,0.,98.75));
440 // outer
441 tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); //sandwich
c1637e41 442 tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925));
878dd3f2 443 tv100->AddNode(tvep1,1,new TGeoTranslation(0.,0.,-177.925)); //epoxy
444 tv100->AddNode(tvep1,2,new TGeoTranslation(0.,0.,177.925));
445 tv100->AddNode(tvpr1,1,new TGeoTranslation(0.,0.,-177.925));//prepreg strip
446 tv100->AddNode(tvpr1,2,new TGeoTranslation(0.,0.,-177.925));
447 //
448 // second segment - rotation 120 deg.
449 //
450 segrot = new TGeoRotation();
451 segrot->RotateZ(120.);
452 //
453 // central
454 tv100->AddNode(tv10,2,segrot); //sandwich
455 tv100->AddNode(tvep3,2,segrot);//epoxy
456 tv100->AddNode(tvpr3,2,segrot);//prepreg strip
457 // middle
458 tv100->AddNode(tv6,3,new TGeoCombiTrans(0.,0.,-98.75,segrot)); //sandwich1
459 tv100->AddNode(tv6,4,new TGeoCombiTrans(0.,0.,98.75,segrot)); // sandwich2
460 tv100->AddNode(tvep2,3,new TGeoCombiTrans(0.,0.,-98.75,segrot)); //epoxy
461 tv100->AddNode(tvep2,4,new TGeoCombiTrans(0.,0.,98.75,segrot)); //epoxy
462 tv100->AddNode(tvpr2,3,new TGeoCombiTrans(0.,0.,-98.75,segrot));//prepreg strip
463 tv100->AddNode(tvpr2,4,new TGeoCombiTrans(0.,0.,98.75,segrot));
464 //outer
465 tv100->AddNode(tv2,3,new TGeoCombiTrans(0.,0.,-177.925,segrot));//sandwich
466 tv100->AddNode(tv2,4,new TGeoCombiTrans(0.,0.,177.925,segrot));
467 tv100->AddNode(tvep1,3,new TGeoCombiTrans(0.,0.,-177.925,segrot));//epoxy
468 tv100->AddNode(tvep1,4,new TGeoCombiTrans(0.,0.,177.925,segrot));
469 tv100->AddNode(tvpr1,3,new TGeoCombiTrans(0.,0.,-177.925,segrot));//prepreg strip
470 tv100->AddNode(tvpr1,4,new TGeoCombiTrans(0.,0.,177.925,segrot));
471 //
472 // third segment - rotation 240 deg.
473 //
474 segrot = new TGeoRotation();
475 segrot->RotateZ(240.);
476 //
477 // central
478 tv100->AddNode(tv10,3,segrot); //sandwich
479 tv100->AddNode(tvep3,3,segrot);//epoxy
480 tv100->AddNode(tvpr3,3,segrot);//prepreg strip
481 // middle
482 tv100->AddNode(tv6,5,new TGeoCombiTrans(0.,0.,-98.75,segrot)); //sandwich1
483 tv100->AddNode(tv6,6,new TGeoCombiTrans(0.,0.,98.75,segrot)); // sandwich2
484 tv100->AddNode(tvep2,5,new TGeoCombiTrans(0.,0.,-98.75,segrot)); //epoxy
485 tv100->AddNode(tvep2,6,new TGeoCombiTrans(0.,0.,98.75,segrot)); //epoxy
486 tv100->AddNode(tvpr2,5,new TGeoCombiTrans(0.,0.,-98.75,segrot));//prepreg strip
487 tv100->AddNode(tvpr2,6,new TGeoCombiTrans(0.,0.,98.75,segrot));
488 //outer
489 tv100->AddNode(tv2,5,new TGeoCombiTrans(0.,0.,-177.925,segrot));//sandwich
490 tv100->AddNode(tv2,6,new TGeoCombiTrans(0.,0.,177.925,segrot));
491 tv100->AddNode(tvep1,5,new TGeoCombiTrans(0.,0.,-177.925,segrot));//epoxy
492 tv100->AddNode(tvep1,6,new TGeoCombiTrans(0.,0.,177.925,segrot));
493 tv100->AddNode(tvpr1,5,new TGeoCombiTrans(0.,0.,-177.925,segrot));//prepreg strip
494 tv100->AddNode(tvpr1,6,new TGeoCombiTrans(0.,0.,177.925,segrot));
495 // Al parts - rings
c1637e41 496 tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85));
497 tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85));
498 //
499 v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1));
500 v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1));
501 v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1);
502 v9->AddNode(tv100,1);
503 //
504 // central drum
505 //
506 // flange + sandwich
507 //
508 TGeoPcon *cfl = new TGeoPcon(0.,360.,6);
509 cfl->DefineSection(0,-71.1,59.7,61.2);
510 cfl->DefineSection(1,-68.6,59.7,61.2);
511 //
efbf94c5 512 cfl->DefineSection(2,-68.6,60.6124,61.2);
513 cfl->DefineSection(3,68.6,60.6124,61.2);
c1637e41 514 //
515 cfl->DefineSection(4,68.6,59.7,61.2);
516 cfl->DefineSection(5,71.1,59.7,61.2);
517 //
518 TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3);
519 // sandwich
d56d7df1 520 TGeoTubeSeg *cd1 = new TGeoTubeSeg(60.6224,61.19,71.1,0.1,119.9);
521 TGeoTubeSeg *cd2 = new TGeoTubeSeg(60.6262,61.1862,71.1,0.1,119.9);
522 TGeoTubeSeg *cd3 = new TGeoTubeSeg(60.6462,61.1662,71.1,0.1,119.9);
523 TGeoTubeSeg *cd4 = new TGeoTubeSeg(60.6562,61.1562,71.1,0.1,119.9);
524 TGeoTubeSeg *tepox4 = new TGeoTubeSeg(60.6224,61.19,71.1,359.9,0.1);
525 // TGeoTube *cd1 = new TGeoTube(60.6224,61.19,71.1);
526 // TGeoTube *cd2 = new TGeoTube(60.6262,61.1862,71.1);
527 // TGeoTube *cd3 = new TGeoTube(60.6462,61.1662,71.1);
528 // TGeoTube *cd4 = new TGeoTube(60.6562,61.1562,71.1);
c1637e41 529 //
530 TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1");
efbf94c5 531 TGeoMedium *sm8 = gGeoManager->GetMedium("TPC_Epoxyfm");
c1637e41 532 TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar
533 TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1
efbf94c5 534 TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm8); //epoxy film
535 TGeoVolume *cd4v = new TGeoVolume("TPC_CDR4",cd4,sm4); //nomex
d56d7df1 536 TGeoVolume *tvep4 = new TGeoVolume("TPC_IFEPOX4",tepox4,sm1);
efbf94c5 537
c1637e41 538 //
539 // seals for central drum 2 copies
540 //
541 TGeoTube *cs = new TGeoTube(56.9,61.2,0.1);
542 TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar");
543 TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7);
3378c058 544 v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2));
545 v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2));
c1637e41 546 //
547 // seal collars
548 TGeoPcon *se = new TGeoPcon(0.,360.,6);
549 se->DefineSection(0,-72.8,59.7,61.2);
550 se->DefineSection(1,-72.3,59.7,61.2);
551 //
552 se->DefineSection(2,-72.3,58.85,61.2);
553 se->DefineSection(3,-71.6,58.85,61.2);
554 //
555 se->DefineSection(4,-71.6,59.7,61.2);
556 se->DefineSection(5,-71.3,59.7,61.2);
557 //
558 TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3);
559 //
560 TGeoTube *si = new TGeoTube(56.9,58.8,1.);
561 TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3);
562 //
563 // define reflection matrix
564 //
4fa47888 565 TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.);
c1637e41 566 //
d56d7df1 567 cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cd3v->AddNode(cd4v,1); //sandwich
568 // first segment
569 cflv->AddNode(cd1v,1); cflv->AddNode(tvep4,1);
570 // second segment
571 segrot = new TGeoRotation();
572 segrot->RotateZ(120.);
573 cflv->AddNode(cd1v,2,segrot); cflv->AddNode(tvep4,2,segrot);
574 // third segment
575 segrot = new TGeoRotation();
576 segrot->RotateZ(240.);
577 cflv->AddNode(cd1v,3,segrot); cflv->AddNode(tvep4,3,segrot);
c1637e41 578 //
a1ec4d07 579 v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9));
580 v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9));
c1637e41 581 v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1);
582 //
583 // central membrane - 2 rings and a mylar membrane - assembly
584 //
cf84f9b1 585 TGeoTube *ih = new TGeoTube(81.05,84.05,0.3);
586 TGeoTube *oh = new TGeoTube(250.,256.,0.5);
4236db1b 587 TGeoTube *mem = new TGeoTube(84.05,250.,0.00115);
c449e944 588
589 //
590 TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10");
591 //
c1637e41 592 TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3);
593 TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3);
c449e944 594
c1637e41 595 TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7);
596 //
597 TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM");
598 cm->AddNode(ihv,1);
599 cm->AddNode(ohv,1);
600 cm->AddNode(memv,1);
c449e944 601
c1637e41 602 v9->AddNode(cm,1);
603 //
604 // end caps - they are make as an assembly of single segments
605 // containing both readout chambers
606 //
d899e254 607 Double_t openingAngle = 10.*TMath::DegToRad();
c1637e41 608 Double_t thick=1.5; // rib
d899e254 609 Double_t shift = thick/TMath::Sin(openingAngle);
c1637e41 610 //
d899e254 611 Double_t lowEdge = 86.3; // hole in the wheel
612 Double_t upEdge = 240.4; // hole in the wheel
c1637e41 613 //
614 new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.);
615 //
616 TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4);
617 //
d899e254 618 hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift);
619 hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift);
c1637e41 620 //
d899e254 621 hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift);
622 hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift);
c1637e41 623 //
d899e254 624 Double_t ys = shift*TMath::Sin(openingAngle);
625 Double_t xs = shift*TMath::Cos(openingAngle);
c1637e41 626 TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.);
627 tr->RegisterYourself();
628 TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr");
629 TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3);
630 TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2);
631 bar->DefineSection(0,-3.,131.5-shift,136.5-shift);
632 bar->DefineSection(1,1.5,131.5-shift,136.5-shift);
633 TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3);
634 TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment
635 //
636 ch->AddNode(sv,1); ch->AddNode(barv,1,tr);
637 //
638 // readout chambers
639 //
640 // IROC first
641 //
642 TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15);
643 TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3);
37831078 644 // empty space
c1637e41 645 TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65);
646 TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1);
647 ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.));
648 //bars
649 Double_t tga = (19.8328-12.3742)/39.3;
650 Double_t xmin,xmax;
651 xmin = 9.55*tga+12.3742;
652 xmax = 9.95*tga+12.3742;
653 TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2);
654 TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3);
655 empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9));
656 xmin=19.4*tga+12.3742;
657 xmax=19.9*tga+12.3742;
658 TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25);
659 TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3);
660 empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.));
661 xmin=29.35*tga+12.3742;
662 xmax=29.75*tga+12.3742;
663 TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2);
664 TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3);
665 empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9));
666 //
667 // holes for connectors
668 //
669 TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc
670 TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1);
d9e80aca 671 TString fileName(gSystem->Getenv("ALICE_ROOT"));
672 fileName += "/TPC/conn_iroc.dat";
c1637e41 673 ifstream in;
d9e80aca 674 in.open(fileName.Data(), ios_base::in); // asci file
2d1d58a6 675 TGeoRotation *rrr[86];
c1637e41 676 for(Int_t i =0;i<86;i++){
456cb019 677 Double_t y = 3.99;
c1637e41 678 Double_t x,z,ang;
679 in>>x>>z>>ang;
456cb019 680 z-=26.5;
2d1d58a6 681 rrr[i]= new TGeoRotation();
682 rrr[i]->RotateY(ang);
683 ibdv->AddNode(connv,i+1,new TGeoCombiTrans(x,y,z,rrr[i]));
c1637e41 684 }
685 in.close();
686 // "cap"
687 new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825);
688 // "hole"
689 new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15);
690 TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725);
691 tr1->RegisterYourself();
692 TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1");
693 TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3);
694 //
695 // pad plane and wire fixations
696 //
697 TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso
c1637e41 698 TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4);
699 TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.);
700 TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4);
701 TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.);
702 TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4);
703 //
704 TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC");
705 //
706 iroc->AddNode(ibdv,1);
707 iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725));
708 iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725));
709 tga =(23.3521-14.5974)/49.65;
710 Double_t xx = 24.825*tga+14.5974-0.6;
711 iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725));
712 iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725));
713 //
714 // OROC
715 //
716 TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65);
717 TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3);
718 TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65);
719 TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1);
720 obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.));
721 //horizontal bars
722 tga=(38.5084-20.2938)/99.3;
723 xmin=tga*10.2+20.2938;
724 xmax=tga*10.6+20.2938;
725 TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2);
726 TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3);
727 //
728 xmin=22.55*tga+20.2938;
729 xmax=24.15*tga+20.2938;
730 TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8);
731 TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3);
732 //
733 xmin=36.1*tga+20.2938;
734 xmax=36.5*tga+20.2938;
735 TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2);
736 TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3);
737 //
738 xmin=49.0*tga+20.2938;
739 xmax=50.6*tga+20.2938;
740 TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8);
741 TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3);
742 //
743 xmin=63.6*tga+20.2938;
744 xmax=64.0*tga+20.2938;
745 TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2);
746 TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3);
747 //
748 xmin=75.5*tga+20.2938;
749 xmax=77.15*tga+20.2938;
750 TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8);
751 TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3);
752 //
753 xmin=88.7*tga+20.2938;
754 xmax=89.1*tga+20.2938;
755 TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2);
756 TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3);
757 //
758 oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25));
759 oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3));
760 oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35));
761 oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15));
762 oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15));
763 oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7));
764 oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25));
765 // vertical bars
766 TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1);
767 TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975);
768 TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775);
769 TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25);
770 TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5);
771 //
772 TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3);
773 TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3);
774 TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3);
775 TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3);
776 TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3);
777 //
778 oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55));
779 oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55));
780 oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075));
781 oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525));
782 oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125));
783 oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275));
784 oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9));
785 oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45));
786 //
787 // holes for connectors
788 //
d9e80aca 789 fileName = gSystem->Getenv("ALICE_ROOT");
790 fileName += "/TPC/conn_oroc.dat";
791 in.open(fileName.Data(), ios_base::in); // asci file
2d1d58a6 792 TGeoRotation *rr[78];
c1637e41 793 for(Int_t i =0;i<78;i++){
794 Double_t y =3.89;
795 Double_t x,z,ang;
796 Double_t x1,z1,x2,z2;
797 in>>x>>z>>ang;
798 Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad());
799 Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad());
800 //
801 x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z;
802 //
2d1d58a6 803 rr[i]= new TGeoRotation();
804 rr[i]->RotateY(ang);
c1637e41 805 z1-=54.95;
806 z2-=54.95;
5f174279 807 //
2d1d58a6 808 obdv->AddNode(connv,i+1,new TGeoCombiTrans(x1,y,z1,rr[i]));
809 obdv->AddNode(connv,i+79,new TGeoCombiTrans(x2,y,z2,rr[i]));
c1637e41 810 }
811 in.close();
812 // cap
813 new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1);
814 new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65);
815 TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15);
816 tr5->RegisterYourself();
817 TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5");
818 TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3);
819 //
820 // pad plane and wire fixations
821 //
822 TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1);
823 TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4);
824 //
825 tga=(43.5239-23.3874)/114.2;
826 TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.);
827 TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.);
828 xx = 57.1*tga+23.3874-0.7;
829 TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4);
830 TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4);
831 //
832 TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC");
833 //
834 oroc->AddNode(obdv,1);
835 oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15));
836 oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15));
837 oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15));
838 oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15));
839 //
840 // now iroc and oroc are placed into a sector...
841 //
a1ec4d07 842 TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side
843 TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side
c1637e41 844 TGeoRotation rot1("rot1",90.,90.,0.);
845 TGeoRotation rot2("rot2");
846 rot2.RotateY(10.);
847 TGeoRotation *rot = new TGeoRotation("rot");
848 *rot=rot1*rot2;
849 //
850 Double_t x0,y0;
d899e254 851 x0=110.2*TMath::Cos(openingAngle);
852 y0=110.2*TMath::Sin(openingAngle);
1bae4c82 853 TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side
854 TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side
d899e254 855 x0=188.45*TMath::Cos(openingAngle);
856 y0=188.45*TMath::Sin(openingAngle);
1bae4c82 857 TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side
858 TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side
c1637e41 859 //
c1637e41 860 //
a1ec4d07 861 // A-side
c1637e41 862 //
a1ec4d07 863 secta->AddNode(ch,1);
864 secta->AddNode(iroc,1,combi1a);
865 secta->AddNode(oroc,1,combi2a);
866 //
867 // C-side
868 //
869 sectc->AddNode(ch,1);
870 sectc->AddNode(iroc,1,combi1c);
871 sectc->AddNode(oroc,1,combi2c);
872 //
873 // now I try to make wheels...
874 //
875 TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP");
876 TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP");
c1637e41 877 //
5f174279 878 TGeoRotation *rwh[18];
c1637e41 879 for(Int_t i =0;i<18;i++){
880 Double_t phi = (20.*i);
5f174279 881 rwh[i]=new TGeoRotation();
882 rwh[i]->RotateZ(phi);
883 wheela->AddNode(secta,i+1,rwh[i]);
884 wheelc->AddNode(sectc,i+1,rwh[i]);
c1637e41 885
886 }
4fa47888 887 // wheels in the drift volume!
a1ec4d07 888
c1637e41 889 TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref);
a1ec4d07 890 v9->AddNode(wheela,1,combi3);
891 v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6));
c1637e41 892 //_____________________________________________________________
893 // service support wheel
894 //_____________________________________________________________
895 TGeoPgon *sw = new TGeoPgon(0.,20.,1,2);
896 sw->DefineSection(0,-4.,80.5,251.75);
897 sw->DefineSection(1,4.,80.5,251.75);
898 TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al
899 //
900 thick=1.;
d899e254 901 shift = thick/TMath::Sin(openingAngle);
c1637e41 902 TGeoPgon *sh = new TGeoPgon(0.,20.,1,2);
903 sh->DefineSection(0,-4.,81.5-shift,250.75-shift);
904 sh->DefineSection(1,4.,81.5-shift,250.75-shift);
905 TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air
906 //
74518339 907 TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si");
908 TGeoPgon *el = new TGeoPgon(0.,20.,1,2);
909 el->DefineSection(0,-1.872,81.5-shift,250.75-shift);
910 el->DefineSection(1,1.872,81.5-shift,250.75-shift);
911 TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si
912 //
913 shv->AddNode(elv,1);
914 //
915 //
d899e254 916 ys = shift*TMath::Sin(openingAngle);
917 xs = shift*TMath::Cos(openingAngle);
c1637e41 918 swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.));
919 // cover
920 TGeoPgon *co = new TGeoPgon(0.,20.,1,2);
921 co->DefineSection(0,-0.5,77.,255.25);
922 co->DefineSection(1,0.5,77.,255.25);
923 TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al
924 // hole in a cover
925 TGeoPgon *coh = new TGeoPgon(0.,20.,1,2);
d899e254 926 shift=4./TMath::Sin(openingAngle);
c1637e41 927 coh->DefineSection(0,-0.5,85.-shift,247.25-shift);
928 coh->DefineSection(1,0.5,85.-shift,247.25-shift);
929 //
930 TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1);
931 //
d899e254 932 ys = shift*TMath::Sin(openingAngle);
933 xs = shift*TMath::Cos(openingAngle);
c1637e41 934 cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.));
935 //
936 // Sector as an Assembly
937 //
938 TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC");
939 swhs->AddNode(swv,1);
940 swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5));
941 swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5));
942 //
943 // SSW as an Assembly of sectors
944 //
5f174279 945 TGeoRotation *rsw[18];
946 TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL");
c1637e41 947 for(Int_t i =0;i<18;i++){
948 Double_t phi = (20.*i);
5f174279 949 rsw[i] = new TGeoRotation();
950 rsw[i]->RotateZ(phi);
951 swheel->AddNode(swhs,i+1,rsw[i]);
c1637e41 952 }
953 v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6));
954 v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6));
955
956 // sensitive strips - strip "0" is always set
957 // conditional
958 Int_t totrows;
959 totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp();
960 Double_t *upar;
961 upar=NULL;
962 gGeoManager->Volume("TPC_Strip","PGON",m5->GetId(),upar);
963 upar=new Double_t [10];
964 upar[0]=0.;
965 upar[1]=360.;
966 upar[2]=18.;
967 upar[3]=2.;
968 //
969 upar[4]=-124.8;
970 upar[7]=124.8;
971
972 Double_t rlow=fTPCParam->GetPadRowRadiiLow(0);
973
974 upar[5]=rlow;
975 upar[6]=rlow+.01;
976 upar[8]=upar[5];
977 upar[9]=upar[6];
978 //
979 gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
980 gGeoManager->Node("TPC_Strip",totrows+1,
981 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
982 //
983 // now, strips optionally
984 //
985 if(fSens){
986 //lower sectors
987 for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){
988 rlow=fTPCParam->GetPadRowRadiiLow(i-1);
989 upar[5]=rlow;
990 upar[6]=rlow+.01;
991 upar[8]=upar[5];
992 upar[9]=upar[6];
993 gGeoManager->Node("TPC_Strip",i,
994 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
995 gGeoManager->Node("TPC_Strip",totrows+i,
996 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
997 }
998 //upper sectors
999 for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){
1000 rlow=fTPCParam->GetPadRowRadiiUp(i-1);
1001 upar[5]=rlow;
1002 upar[6]=rlow+.01;
1003 upar[8]=upar[5];
1004 upar[9]=upar[6];
1005 gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(),
1006 "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10);
1007 gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(),
1008 "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10);
1009 }
1010 }//strips
37831078 1011 //----------------------------------------------------------
0f788f87 1012 // TPC Support Rods - MAKROLON
37831078 1013 //----------------------------------------------------------
c1637e41 1014 TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon");
1015 TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu");
78134e48 1016 TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina");
1017 TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek");
1018 TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water");
0f788f87 1019 TGeoMedium *m13 = gGeoManager->GetMedium("TPC_Brass");
1020 //
1021 // tpc rod is an assembly of 10 long parts and 2 short parts
1022 // connected with alu rings and plagged on both sides.
c1637e41 1023 //
c1637e41 1024 //
0f788f87 1025// tpc rod long
1026//
1027 TGeoPcon *rod = new TGeoPcon("rod",0.,360.,6);
1028 rod->DefineSection(0,-10.43,1.92,2.08);
1029 rod->DefineSection(1,-9.75,1.92,2.08);
1030
1031 rod->DefineSection(2,-9.75,1.8,2.2);
1032 rod->DefineSection(3,9.75,1.8,2.2);
1033
1034 rod->DefineSection(4,9.75,1.92,2.08);
1035 rod->DefineSection(5,10.43,1.92,2.08);
1036 //
1037 TGeoVolume *mrodl = new TGeoVolume("TPC_mrodl",rod,m6);
1038 //
1039 // tpc rod short
1040 //
1041 TGeoPcon *rod1 = new TGeoPcon("rod1",0.,360.,6);
1042 rod1->DefineSection(0,-8.93,1.92,2.08);
1043 rod1->DefineSection(1,-8.25,1.92,2.08);
1044
1045 rod1->DefineSection(2,-8.25,1.8,2.2);
1046 rod1->DefineSection(3,8.25,1.8,2.2);
1047
1048 rod1->DefineSection(4,8.25,1.92,2.08);
1049 rod1->DefineSection(5,8.93,1.92,2.08);
1050 //
1051 TGeoVolume *mrods = new TGeoVolume("TPC_mrods",rod1,m6);
1052 //
1053 // below is for the resistor rod
1054 //
1055 // hole for the brass connectors
1056 //
1057
1058 new TGeoTube("hhole",0.,0.3,0.3);
1059 //
1060 //transformations for holes - initialy they
1061 // are placed at x=0 and negative y
1062 //
1063 TGeoRotation *rhole = new TGeoRotation();
1064 rhole->RotateX(90.);
1065 TGeoCombiTrans *transf[13];
1066 Char_t name[30];
1067 for(Int_t i=0;i<13;i++){
1068 sprintf(name,"transf%d",i);
1069 transf[i]= new TGeoCombiTrans(name,0.,-2.,-9.+i*1.5,rhole);
1070 transf[i]->RegisterYourself();
1071 }
1072 // union expression for holes
1073 TString operl("hhole:transf0");
1074 for (Int_t i=1;i<13;i++){
1075 sprintf(name,"+hhole:transf%d",i);
1076 operl.Append(name);
1077 }
78134e48 1078 //
0f788f87 1079 TString opers("hhole:transf1");
1080 for (Int_t i=2;i<12;i++){
1081 sprintf(name,"+hhole:transf%d",i);
1082 opers.Append(name);
1083 }
1084 //union of holes
1085 new TGeoCompositeShape("hlv",operl.Data());
1086 new TGeoCompositeShape("hsv",opers.Data());
1087 //
1088 TGeoCompositeShape *rodl = new TGeoCompositeShape("rodl","rod-hlv");
1089 TGeoCompositeShape *rods = new TGeoCompositeShape("rods","rod1-hsv");
1090 //rods - volumes - makrolon rods with holes
1091 TGeoVolume *rodlv = new TGeoVolume("TPC_rodl",rodl,m6);
1092 TGeoVolume *rodsv = new TGeoVolume("TPC_rods",rods,m6);
1093 //brass connectors
1094 //connectors
1095 TGeoTube *bcon = new TGeoTube(0.,0.3,0.3);//connectors
1096 TGeoVolume *bconv = new TGeoVolume("TPC_bcon",bcon,m13);
1097 //
1098 // hooks holding strips
1099 //
1100 new TGeoBBox("hk1",0.625,0.015,0.75);
1101 new TGeoBBox("hk2",0.625,0.015,0.15);
1102 TGeoTranslation *tr21 = new TGeoTranslation("tr21",0.,-0.03,-0.6);
1103 TGeoTranslation *tr12 = new TGeoTranslation("tr12",0.,-0.03,0.6);
1104 tr21->RegisterYourself();
1105 tr12->RegisterYourself();
1106
1107 TGeoCompositeShape *hook = new TGeoCompositeShape("hook","hk1+hk2:tr21+hk2:tr12");
1108 TGeoVolume *hookv = new TGeoVolume("TPC_hook",hook,m13);
1109 //
1110 // assembly of the short rod with connectors and hooks
1111 //
1112 //
1113 // short rod
1114 //
1115 TGeoVolumeAssembly *spart = new TGeoVolumeAssembly("TPC_spart");
1116 //
1117 spart->AddNode( rodsv,1);
1118 for(Int_t i=1;i<12;i++){
1119 spart->AddNode(bconv,i,transf[i]);
1120 }
1121 for(Int_t i =0;i<11;i++){
ceb660a9 1122 spart->AddNode(hookv,i+1,new TGeoTranslation(0.,-2.315,-7.5+i*1.5));
0f788f87 1123 }
1124 //
1125 // long rod
1126 //
1127 TGeoVolumeAssembly *lpart = new TGeoVolumeAssembly("TPC_lpart");
1128 //
1129 lpart->AddNode( rodlv,1);
1130 for(Int_t i=0;i<13;i++){
ceb660a9 1131 lpart->AddNode(bconv,i+12,transf[i]);
0f788f87 1132 }
1133 for(Int_t i =0;i<13;i++){
ceb660a9 1134 lpart->AddNode(hookv,i+12,new TGeoTranslation(0.,-2.315,-9.+i*1.5));
0f788f87 1135 }
1136 //
1137 // alu ring
1138 //
1139 new TGeoTube("ring1",2.1075,2.235,0.53);
1140 new TGeoTube("ring2",1.7925,1.89,0.43);
1141 new TGeoTube("ring3",1.89,2.1075,0.05);
1142 TGeoCompositeShape *ring = new TGeoCompositeShape("ring","ring1+ring2+ring3");
1143 TGeoVolume *ringv = new TGeoVolume("TPC_ring",ring,m3);
1144 //
1145 // rod assembly
1146 //
ceb660a9 1147 TGeoVolumeAssembly *tpcrrod = new TGeoVolumeAssembly("TPC_rrod");//rrod
0f788f87 1148 TGeoVolumeAssembly *tpcmrod = new TGeoVolumeAssembly("TPC_mrod");//makrolon rod
1149 //long pieces
1150 for(Int_t i=0;i<11;i++){
ceb660a9 1151 tpcrrod->AddNode(ringv,i+1,new TGeoTranslation(0.,0.,-105.+i*21));
0f788f87 1152 tpcmrod->AddNode(ringv,i+12,new TGeoTranslation(0.,0.,-105.+i*21));
1153 }
1154 for(Int_t i=0;i<10;i++){
ceb660a9 1155 tpcrrod->AddNode(lpart,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));
0f788f87 1156 tpcmrod->AddNode(mrodl,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));
1157 }
78134e48 1158 //
0f788f87 1159 // short pieces
78134e48 1160 //
ceb660a9 1161 tpcrrod->AddNode(spart,1,new TGeoTranslation(0.,0.,-114.));
1162 tpcrrod->AddNode(spart,2,new TGeoTranslation(0.,0.,114.));
1163 tpcrrod->AddNode(ringv,23,new TGeoTranslation(0.,0.,-123.));
1164 tpcrrod->AddNode(ringv,24,new TGeoTranslation(0.,0.,123.));
78134e48 1165 //
0f788f87 1166 tpcmrod->AddNode(mrods,1,new TGeoTranslation(0.,0.,-114.));
1167 tpcmrod->AddNode(mrods,2,new TGeoTranslation(0.,0.,114.));
1168 tpcmrod->AddNode(ringv,25,new TGeoTranslation(0.,0.,-123.));
1169 tpcmrod->AddNode(ringv,26,new TGeoTranslation(0.,0.,123.));
1170 //
1171 // left plaque
78134e48 1172 //
0f788f87 1173 TGeoPcon *lp = new TGeoPcon(0.,360.,4);
78134e48 1174 //
0f788f87 1175 lp->DefineSection(0,-125.8,1.92,2.235);
1176 lp->DefineSection(1,-124.8,1.92,2.235);
78134e48 1177 //
0f788f87 1178 lp->DefineSection(2,-124.8,1.92,2.08);
1179 lp->DefineSection(3,-123.1,1.92,2.08);
78134e48 1180 //
0f788f87 1181 TGeoVolume *lpv1 = new TGeoVolume("TPC_lpv1",lp,m6);
1182 TGeoVolume *lpv2 = new TGeoVolume("TPC_lpv2",lp,m6);
1183 // left ring
1184 TGeoTube *lr = new TGeoTube(2.1075,2.235,0.5);
1185 TGeoVolume *lrv = new TGeoVolume("TPC_lrv",lr,m3);
78134e48 1186 //
0f788f87 1187 lpv2->AddNode(lrv,1,new TGeoTranslation(0.,0.,-125.3));
78134e48 1188 //
ceb660a9 1189 tpcrrod->AddNode(lpv2,1);
0f788f87 1190 tpcmrod->AddNode(lpv1,1);
78134e48 1191 //
0f788f87 1192 // right plaque
78134e48 1193 //
f1447ab6 1194 TGeoTube *rp = new TGeoTube(1.92,2.08,2.025);
0f788f87 1195 TGeoVolume *rpv = new TGeoVolume("TPC_rpv",rp,m6);
f1447ab6 1196 tpcrrod->AddNode(rpv,1, new TGeoTranslation(0.,0.,125.125));
1197 tpcmrod->AddNode(rpv,2,new TGeoTranslation(0.,0.,125.125));
78134e48 1198 //
a3d2be59 1199 //
0f788f87 1200 //HV rods - makrolon + 0.58cm (diameter) Cu
cf84f9b1 1201 TGeoTube *hvr = new TGeoTube(0.,1.465,126.5);
1202 TGeoTube *hvc = new TGeoTube(0.,0.29,126.5);
0f788f87 1203 //
1204 TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6);
1205 TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7);
1206 hvrv->AddNode(hvcv,1);
78134e48 1207 //
0f788f87 1208 //resistor rod
1209 //
ceb660a9 1210 TGeoTube *cr = new TGeoTube(0.,0.45,126.2);
1211 TGeoTube *cw = new TGeoTube(0.,0.15,126.2);
0f788f87 1212 TGeoVolume *crv = new TGeoVolume("TPC_CR",cr,m10);
ceb660a9 1213 TGeoVolume *cwv = new TGeoVolume("TPC_W",cw,m12);
0f788f87 1214 //
1215 // ceramic rod with water
1216 //
1217 crv->AddNode(cwv,1);
1218 //
1219 //peek rod
1220 //
ceb660a9 1221 TGeoTube *pr =new TGeoTube(0.2,0.35,126.2);
1222 TGeoVolume *prv = new TGeoVolume("TPC_PR",pr,m11);
0f788f87 1223 //
1224 // copper plates with connectors
1225 //
1226 new TGeoTube("tub",0.,1.7,0.025);
1227 //
1228 // half space - points on the plane and a normal vector
1229 //
1230 Double_t n[3],p[3];
1231 Double_t slope = TMath::Tan(22.*TMath::DegToRad());
1232 Double_t intp = 1.245;
1233 //
1234 Double_t b = slope*slope+1.;
1235 p[0]=intp*slope/b;
1236 p[1]=-intp/b;
1237 p[2]=0.;
1238 //
1239 n[0]=-p[0];
1240 n[1]=-p[1];
1241 n[2]=0.;
1242 Double_t norm;
1243 norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]);
1244 n[0] /= norm;
1245 n[1] /=norm;
1246 //
1247 new TGeoHalfSpace("sp1",p,n);
1248 //
1249 slope = -slope;
1250 //
1251 p[0]=intp*slope/b;
1252 p[1]=-intp/b;
1253 //
1254 n[0]=-p[0];
1255 n[1]=-p[1];
1256 norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]);
1257 n[0] /= norm;
1258 n[1] /=norm;
1259 //
1260 new TGeoHalfSpace("sp2",p,n);
1261 // holes for rods
1262 //holes
1263 new TGeoTube("h1",0.,0.5,0.025);
1264 new TGeoTube("h2",0.,0.35,0.025);
1265 //translations:
1266 TGeoTranslation *ttr11 = new TGeoTranslation("ttr11",-0.866,0.5,0.);
1267 TGeoTranslation *ttr22 = new TGeoTranslation("ttr22",0.866,0.5,0.);
1268 ttr11->RegisterYourself();
1269 ttr22->RegisterYourself();
1270 // elastic connector
1271 new TGeoBBox("elcon",0.72,0.005,0.3);
1272 TGeoRotation *crr1 = new TGeoRotation();
1273 crr1->RotateZ(-22.);
1274TGeoCombiTrans *ctr1 = new TGeoCombiTrans("ctr1",-0.36011, -1.09951,-0.325,crr1);
1275ctr1->RegisterYourself();
1276 TGeoCompositeShape *cs1 = new TGeoCompositeShape("cs1",
1277"(((((tub-h1:ttr11)-h1:ttr22)-sp1)-sp2)-h2)+elcon:ctr1");
1278 //
1279 TGeoVolume *csvv = new TGeoVolume("TPC_RR_CU",cs1,m7);
1280 //
1281 // resistor rod assembly 2 ceramic rods, peak rod, Cu plates
1282 // and resistors
1283 //
ceb660a9 1284 TGeoVolumeAssembly *rrod = new TGeoVolumeAssembly("TPC_RRIN");
0f788f87 1285 // rods
1286 rrod->AddNode(crv,1,ttr11);
1287 rrod->AddNode(crv,2,ttr22);
1288 rrod->AddNode(prv,1);
1289 //Cu plates
1290 for(Int_t i=0;i<165;i++){
1291 rrod->AddNode(csvv,i+1,new TGeoTranslation(0.,0.,-122.675+i*1.5));
1292 }
1293 //resistors
1294 TGeoTube *res = new TGeoTube(0.,0.15,0.5);
1295 TGeoVolume *resv = new TGeoVolume("TPC_RES",res,m10);
1296 TGeoVolumeAssembly *ress = new TGeoVolumeAssembly("TPC_RES_CH");
1297 ress->AddNode(resv,1,new TGeoTranslation(0.2,0.,0.));
1298 ress->AddNode(resv,2,new TGeoTranslation(-0.2,0.,0.));
1299 //
1300 TGeoRotation *crr2 = new TGeoRotation();
1301 crr2->RotateY(30.);
1302 TGeoRotation *crr3 = new TGeoRotation();
1303 crr3->RotateY(-30.);
1304 //
1305 for(Int_t i=0;i<164;i+=2){
1306 rrod->AddNode(ress,i+1, new TGeoCombiTrans(0.,1.2,-121.925+i*1.5,crr2));
1307 rrod->AddNode(ress,i+2, new TGeoCombiTrans(0.,1.2,-121.925+(i+1)*1.5,crr3));
1308 }
ceb660a9 1309
d00b3fc6 1310 tpcrrod->AddNode(rrod,1,new TGeoCombiTrans(0.,0.,0.5,crr1));
7f96259a 1311 //
1312 // guard ring resistor chain
1313 //
232c5b28 1314
1315 TGeoTube *gres1 = new TGeoTube(0.,0.375,125.);// inside ifc
7f96259a 1316 //
1317 TGeoVolume *vgres1 = new TGeoVolume("TPC_GRES1",gres1,m10);
232c5b28 1318
7f96259a 1319 //
1320 Double_t xrc,yrc;
1321 //
7f96259a 1322 xrc=79.3*TMath::Cos(350.*TMath::DegToRad());
1323 yrc=79.3*TMath::Sin(350.*TMath::DegToRad());
1324 //
232c5b28 1325 v9->AddNode(vgres1,1,new TGeoTranslation(xrc,yrc,126.9));
1326 v9->AddNode(vgres1,2,new TGeoTranslation(xrc,yrc,-126.9));
1327 //
e079adac 1328 xrc=79.3*TMath::Cos(190.*TMath::DegToRad());
1329 yrc=79.3*TMath::Sin(190.*TMath::DegToRad());
232c5b28 1330 //
1331 v9->AddNode(vgres1,3,new TGeoTranslation(xrc,yrc,126.9));
1332 v9->AddNode(vgres1,4,new TGeoTranslation(xrc,yrc,-126.9));
0f788f87 1333 //------------------------------------------------------------------
1334 TGeoRotation refl("refl",90.,0.,90.,90.,180.,0.);
1335 TGeoRotation rotrod("rotrod");
0f788f87 1336 //
2d1d58a6 1337 TGeoRotation *rotpos[2];
1338 //
1339 TGeoRotation *rotrod1[2];
c449e944 1340 TGeoTubeSeg *irh = new TGeoTubeSeg(78.825,79.25,1.5,358.5,1.5);
1341 TGeoTubeSeg *orh = new TGeoTubeSeg(256.5,257.95,1.5,359.5,0.5);
1342 TGeoTubeSeg *ohh = new TGeoTubeSeg(256.5,257.95,1.5,9.5,10.5);
1343 TGeoVolume *irhv = new TGeoVolume("TPC_IRHH",irh,m4);
1344 TGeoVolume *orhv = new TGeoVolume("TPC_ORHH",orh,m4);
1345 TGeoVolume *ohhv = new TGeoVolume("TPC_OHVHH",ohh,m4);
0f788f87 1346
1347 //v9 - drift gas
1348
7281dc07 1349 for(Int_t i=0;i<18;i++){
c1637e41 1350 Double_t angle,x,y;
1351 Double_t z,r;
1352 angle=TMath::DegToRad()*20.*(Double_t)i;
c449e944 1353 TGeoRotation *roth = new TGeoRotation(); //rotation for rod holders
1354 roth->RotateZ(angle);
0f788f87 1355 //inner rods
c1637e41 1356 r=81.5;
1357 x=r * TMath::Cos(angle);
1358 y=r * TMath::Sin(angle);
cf84f9b1 1359 z = 126.1;
78134e48 1360 //
c449e944 1361 v9->AddNode(irhv,i+1,roth);
1362 v9->AddNode(orhv,i+1,roth);
1363 v9->AddNode(ohhv,i+1,roth);
1364 //
0f788f87 1365 if(i==11){//resistor rod inner
1366 rotrod.RotateZ(-90.+angle);
2d1d58a6 1367 rotrod1[0]= new TGeoRotation();
1368 rotpos[0]= new TGeoRotation();
1369 //
1370 rotrod1[0]->RotateZ(-90.+angle);
1371 *rotpos[0] = refl*rotrod; //rotation+reflection
ceb660a9 1372 v9->AddNode(tpcrrod,1,new TGeoCombiTrans(x,y, z, rotrod1[0])); //A
1373 v9->AddNode(tpcrrod,2,new TGeoCombiTrans(x,y,-z, rotpos[0])); //C
78134e48 1374 }
1375 else {
0f788f87 1376 v9->AddNode(tpcmrod,i+1,new TGeoTranslation(x,y,z));//shaft
1377 v9->AddNode(tpcmrod,i+19,new TGeoCombiTrans(x,y,-z,ref));//muon
37831078 1378 }
0f788f87 1379 // outer rods
c1637e41 1380 r=254.25;
1381 x=r * TMath::Cos(angle);
1382 y=r * TMath::Sin(angle);
cf84f9b1 1383 z=126.3;
78134e48 1384 //
0f788f87 1385 if(i==3){//resistor rod outer
1386 rotrod.RotateZ(90.+angle);
2d1d58a6 1387 rotrod1[1]= new TGeoRotation();
1388 rotpos[1]= new TGeoRotation();
1389 rotrod1[1]->RotateZ(90.+angle);
1390 *rotpos[1] = refl*rotrod;//rotation+reflection
ceb660a9 1391 v9->AddNode(tpcrrod,3,new TGeoCombiTrans(x,y, z, rotrod1[1])); //A
1392 v9->AddNode(tpcrrod,4,new TGeoCombiTrans(x,y, -z, rotpos[1])); //C
78134e48 1393 }
0f788f87 1394 else {
1395 v9->AddNode(tpcmrod,i+37,new TGeoTranslation(x,y,z));//shaft
1396 v9->AddNode(tpcmrod,i+55,new TGeoCombiTrans(x,y,-z,ref));//muon
78134e48 1397 }
0f788f87 1398 if(i==15){
cf84f9b1 1399 v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z+0.7)); //hv->A-side only
78134e48 1400 }
0f788f87 1401 } //end of rods positioning
69776907 1402
bde68ab0 1403 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
1404 alice->AddNode(v1,1);
c1637e41 1405
1283eee5 1406} // end of function
fe4da5cc 1407
1408//_____________________________________________________________________________
ac81c411 1409void AliTPCv2::AddAlignableVolumes() const
1410{
1411 //
1412 // Create entries for alignable volumes associating the symbolic volume
1413 // name with the corresponding volume path. Needs to be syncronized with
1414 // eventual changes in the geometry.
1415 //
1416 SetInnerChambersAlignable();
1417 SetOuterChambersAlignable();
1418}
1419
1420//_____________________________________________________________________________
1421void AliTPCv2::SetInnerChambersAlignable() const
1422{
1423 //
cdf69b9a 1424 AliGeomManager::ELayerID idTPC1 = AliGeomManager::kTPC1;
1425 Int_t modUID, modnum = 0;
d899e254 1426 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
1427 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
1428 TString vpappend = "/TPC_IROC_1";
1429 TString snstr1="TPC/EndcapA/Sector";
1430 TString snstr2="TPC/EndcapC/Sector";
1431 TString snappend="/InnerChamber";
ac81c411 1432 TString volpath, symname;
1433
1ac29fc4 1434 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1435 modUID = AliGeomManager::LayerToVolUID(idTPC1,modnum++);
1ac29fc4 1436 volpath = vpstr1;
1437 volpath += cnt;
1438 volpath += vpappend;
1439 symname = snstr1;
1440 symname += cnt;
1441 symname += snappend;
cdf69b9a 1442 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1443 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1444 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1445 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1446 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,cnt-1);
1447 alignableEntry->SetMatrix(matTtoL);
1ac29fc4 1448 }
65293f49 1449
ac81c411 1450 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1451 modUID = AliGeomManager::LayerToVolUID(idTPC1,modnum++);
d899e254 1452 volpath = vpstr2;
ac81c411 1453 volpath += cnt;
d899e254 1454 volpath += vpappend;
1455 symname = snstr2;
ac81c411 1456 symname += cnt;
d899e254 1457 symname += snappend;
cdf69b9a 1458 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1459 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1460 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1461 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1462 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,18+cnt-1);
1463 alignableEntry->SetMatrix(matTtoL);
ac81c411 1464 }
1465}
1466
ac81c411 1467//_____________________________________________________________________________
1468void AliTPCv2::SetOuterChambersAlignable() const
1469{
1470 //
cdf69b9a 1471 AliGeomManager::ELayerID idTPC2 = AliGeomManager::kTPC2;
1472 Int_t modUID, modnum = 0;
d899e254 1473 TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_";
1474 TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_";
1475 TString vpappend = "/TPC_OROC_1";
1476 TString snstr1="TPC/EndcapA/Sector";
1477 TString snstr2="TPC/EndcapC/Sector";
1478 TString snappend="/OuterChamber";
ac81c411 1479 TString volpath, symname;
1480
1481 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1482 modUID = AliGeomManager::LayerToVolUID(idTPC2,modnum++);
d899e254 1483 volpath = vpstr1;
ac81c411 1484 volpath += cnt;
d899e254 1485 volpath += vpappend;
1486 symname = snstr1;
ac81c411 1487 symname += cnt;
d899e254 1488 symname += snappend;
cdf69b9a 1489 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1490 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1491 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1492 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1493 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+cnt-1);
1494 alignableEntry->SetMatrix(matTtoL);
ac81c411 1495 }
84cbbd90 1496
ac81c411 1497 for(Int_t cnt=1; cnt<=18; cnt++){
cdf69b9a 1498 modUID = AliGeomManager::LayerToVolUID(idTPC2,modnum++);
d899e254 1499 volpath = vpstr2;
ac81c411 1500 volpath += cnt;
d899e254 1501 volpath += vpappend;
1502 symname = snstr2;
ac81c411 1503 symname += cnt;
d899e254 1504 symname += snappend;
cdf69b9a 1505 if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data(),modUID))
84cbbd90 1506 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data()));
cdf69b9a 1507 TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntryByUID(modUID);
1508 TGeoHMatrix* globMatrix = alignableEntry->GetGlobalOrig();
1ac29fc4 1509 TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+18+cnt-1);
1510 alignableEntry->SetMatrix(matTtoL);
ac81c411 1511 }
1512}
1513
1514//_____________________________________________________________________________
d899e254 1515void AliTPCv2::DrawDetector() const
fe4da5cc 1516{
1517 //
1518 // Draw a shaded view of the Time Projection Chamber version 1
1519 //
1520
fe4da5cc 1521 // Set everything unseen
cfce8870 1522 gMC->Gsatt("*", "seen", -1);
fe4da5cc 1523 //
1524 // Set ALIC mother transparent
cfce8870 1525 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 1526 //
1527 // Set the volumes visible
37831078 1528 //
1529
1530 gMC->Gsatt("TPC ","SEEN",0);
1531 gMC->Gsatt("TOIN","SEEN",1);
1532 gMC->Gsatt("TOIN","COLO",7);
37831078 1533 gMC->Gsatt("TOCV","SEEN",1);
1534 gMC->Gsatt("TOCV","COLO",4);
1535 gMC->Gsatt("TSA1","SEEN",0);
1536 gMC->Gsatt("TSA2","SEEN",0);
1537 gMC->Gsatt("TSA3","SEEN",0);
79575d04 1538 gMC->Gsatt("TSA4","SEEN",0);
1539 gMC->Gsatt("TSA5","SEEN",0);
37831078 1540 gMC->Gsatt("TOFC","SEEN",1);
1541 gMC->Gsatt("TOFC","COLO",4);
37831078 1542 gMC->Gsatt("TSA6","SEEN",0);
1543 gMC->Gsatt("TSA7","SEEN",0);
79575d04 1544 gMC->Gsatt("TSA8","SEEN",0);
37831078 1545 gMC->Gsatt("TIIN","SEEN",1);
79575d04 1546 gMC->Gsatt("TIIN","COLO",7);
1547 gMC->Gsatt("TII1","SEEN",0);
1548 gMC->Gsatt("TIFC","SEEN",1);
1549 gMC->Gsatt("TIFC","COLO",4);
1550 gMC->Gsatt("TSA9","SEEN",0);
37831078 1551 gMC->Gsatt("TS10","SEEN",0);
1552 gMC->Gsatt("TS11","SEEN",0);
1553 gMC->Gsatt("TS12","SEEN",0);
37831078 1554 gMC->Gsatt("TS13","SEEN",0);
1555 gMC->Gsatt("TS14","SEEN",0);
79575d04 1556 gMC->Gsatt("TICC","SEEN",0);
1557 gMC->Gsatt("TICM","SEEN",0);
37831078 1558 gMC->Gsatt("TS15","SEEN",0);
1559 gMC->Gsatt("TS16","SEEN",0);
37831078 1560 gMC->Gsatt("TS17","SEEN",0);
79575d04 1561 gMC->Gsatt("TS18","SEEN",0);
1562 gMC->Gsatt("TS19","SEEN",0);
1563 gMC->Gsatt("TPJ1","SEEN",0);
1564 gMC->Gsatt("TPJ2","SEEN",0);
1565 gMC->Gsatt("TICS","SEEN",0);
1566 gMC->Gsatt("TDGN","SEEN",0);
37831078 1567 gMC->Gsatt("TIRC","SEEN",0);
1568 gMC->Gsatt("TIC1","SEEN",1);
1569 gMC->Gsatt("TIPP","SEEN",0);
1570 gMC->Gsatt("TIC3","SEEN",0);
1571 gMC->Gsatt("TRCE","SEEN",0);
1572 gMC->Gsatt("TPSC","SEEN",0);
79575d04 1573 gMC->Gsatt("TPCC","SEEN",0);
37831078 1574 gMC->Gsatt("TORC","SEEN",0);
1575 gMC->Gsatt("TOPP","SEEN",0);
1576 gMC->Gsatt("TOC3","SEEN",0);
1577 gMC->Gsatt("TOC1","SEEN",1);
1578 gMC->Gsatt("TSSW","SEEN",1);
1579 gMC->Gsatt("TSWC","SEEN",1);
37831078 1580 gMC->Gsatt("TSSW","COLO",3);
1581 gMC->Gsatt("TSWC","COLO",3);
1582 gMC->Gsatt("TSCE","COLO",6);
79575d04 1583 gMC->Gsatt("TSCE","SEEN",1);
37831078 1584 gMC->Gsatt("TWES","SEEN",0);
1585 gMC->Gsatt("TSWB","SEEN",0);
1586 gMC->Gsatt("TPEL","SEEN",0);
1587 gMC->Gsatt("TPMW","SEEN",1);
37831078 1588 gMC->Gsatt("TESR","SEEN",1);
1589 gMC->Gsatt("TPMW","COLO",12);
37831078 1590 gMC->Gsatt("TIC1","COLO",5);
79575d04 1591 gMC->Gsatt("TOC1","COLO",5);
37831078 1592 gMC->Gsatt("TESB","SEEN",0);
37831078 1593 gMC->Gsatt("THVM","SEEN",1);
1594 gMC->Gsatt("THVM","COLO",11);
79575d04 1595 gMC->Gsatt("THVH","SEEN",0);
1596 gMC->Gsatt("TPSR","SEEN",0);
37831078 1597 gMC->Gsatt("THVL","SEEN",0);
79575d04 1598 gMC->Gsatt("THVC","SEEN",0);
37831078 1599 gMC->Gsatt("THVE","SEEN",0);
1600 gMC->Gsatt("THVR","SEEN",0);
79575d04 1601 gMC->Gsatt("TPSS","SEEN",0);
1602 gMC->Gsatt("TPUS","SEEN",0);
1603 gMC->Gsatt("TPLS","SEEN",0);
37831078 1604
fe4da5cc 1605 //
cfce8870 1606 gMC->Gdopt("hide", "on");
1607 gMC->Gdopt("shad", "on");
1608 gMC->Gsatt("*", "fill", 7);
1609 gMC->SetClipBox(".");
37831078 1610 gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.);
1611 gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.);
1612 gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.);
1613 gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.);
1614 gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290);
cfce8870 1615 gMC->DefaultRange();
1616 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025);
1617 gMC->Gdhead(1111, "Time Projection Chamber");
1618 gMC->Gdman(18, 4, "MAN");
1619 gMC->Gdopt("hide","off");
fe4da5cc 1620}
1621
1622//_____________________________________________________________________________
1623void AliTPCv2::CreateMaterials()
1624{
1625 //
1626 // Define materials for version 2 of the Time Projection Chamber
1627 //
37831078 1628
fe4da5cc 1629 AliTPC::CreateMaterials();
1630}
1631
1632//_____________________________________________________________________________
1633void AliTPCv2::Init()
1634{
1635 //
1636 // Initialises version 2 of the TPC after that it has been built
1637 //
37831078 1638
1639 Int_t *idtmed = fIdtmed->GetArray();
1640
fe4da5cc 1641 AliTPC::Init();
d4c354b9 1642
c1637e41 1643
1644 fIdSens=gMC->VolId("TPC_Strip"); // one strip is always selected...
d4c354b9 1645
c1637e41 1646 fIDrift=gMC->VolId("TPC_Drift");
1647 fSecOld=-100; // fake number
fe4da5cc 1648
d9888f70 1649 gMC->SetMaxNStep(-30000); // max. number of steps increased
fe4da5cc 1650
4481461d 1651 if (fPrimaryIonisation) {
098dfc1a 1652 // for FLUKA
4481461d 1653 gMC->Gstpar(idtmed[2],"PRIMIO_E", 20.77); // 1st ionisation potential
1654
1655 gMC->Gstpar(idtmed[2],"PRIMIO_N", 14.35);
1656 gMC->Gstpar(idtmed[2],"LOSS", 14); // specific energy loss
8143dfb2 1657 gMC->Gstpar(idtmed[2],"STRA",4);
098dfc1a 1658 }
1659 // specific energy loss for geant3 is now defined in galice.cuts
4481461d 1660
fe4da5cc 1661
a9d15241 1662 AliDebug(1,"*** TPC version 2 initialized ***");
1663 AliDebug(1,Form("Maximum number of steps = %d",gMC->GetMaxNStep()));
fe4da5cc 1664
1665 //
1666
1667}
1668
1669//_____________________________________________________________________________
1670void AliTPCv2::StepManager()
1671{
1672 //
1673 // Called for every step in the Time Projection Chamber
1674 //
1675
1676 //
1677 // parameters used for the energy loss calculations
1678 //
73042f01 1679 const Float_t kprim = 14.35; // number of primary collisions per 1 cm
1680 const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2
1681 const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation
ec6ac410 1682 const Int_t kMaxDistRef =15; // maximal difference between 2 stored references
fe4da5cc 1683
73042f01 1684 const Float_t kbig = 1.e10;
fe4da5cc 1685
1686 Int_t id,copy;
e61fd20d 1687 Float_t hits[5];
fe4da5cc 1688 Int_t vol[2];
37831078 1689 TLorentzVector p;
fe4da5cc 1690
37831078 1691 vol[1]=0; // preset row number to 0
fe4da5cc 1692 //
f6a67d69 1693 if (!fPrimaryIonisation) gMC->SetMaxStep(kbig);
fe4da5cc 1694
0a6d8768 1695 if(!gMC->IsTrackAlive()) return; // particle has disappeared
fe4da5cc 1696
cfce8870 1697 Float_t charge = gMC->TrackCharge();
fe4da5cc 1698
1699 if(TMath::Abs(charge)<=0.) return; // take only charged particles
1700
37831078 1701 // check the sensitive volume
1702
c1637e41 1703 id = gMC->CurrentVolID(copy); // vol ID and copy number (starts from 1!)
1704 if(id != fIDrift && id != fIdSens) return; // not in the sensitive folume
da33556f 1705
c1637e41 1706 gMC->TrackPosition(p);
1707 Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1708 //
1709
1710 //
1711 Double_t angle = TMath::ACos(p[0]/r);
1712 angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle;
1713 //
1714 // angular segment, it is not a real sector number...
1715 //
1716 Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/
1717 fTPCParam->GetInnerAngle());
1718 // rotate to segment "0"
1719 Float_t cos,sin;
1720 fTPCParam->AdjustCosSin(sector,cos,sin);
1721 Float_t x1=p[0]*cos + p[1]*sin;
1722 // check if within sector's limits
5bd5dbc4 1723 if((x1>=fTPCParam->GetInnerRadiusLow()&&x1<=fTPCParam->GetInnerRadiusUp())
1724 ||(x1>=fTPCParam->GetOuterRadiusLow()&&x1<=fTPCParam->GetOuterRadiusUp())){
c1637e41 1725 // calculate real sector number...
1726 if (x1>fTPCParam->GetOuterRadiusLow()){
1727 sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/
1728 fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector();
1729 if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1);
37831078 1730 }
c1637e41 1731 else
1732 if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1);
1733 //
1734 // here I have a sector number
1735 //
37831078 1736
c1637e41 1737 vol[0]=sector;
ec6ac410 1738
1739 static Double_t lastReferenceR=0;
1740 if (TMath::Abs(lastReferenceR-r)>kMaxDistRef){
1741 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kTPC);
1742 lastReferenceR = r;
1743 }
1744
c1637e41 1745 // check if change of sector
1746 if(sector != fSecOld){
1747 fSecOld=sector;
1748 // add track reference
e6add757 1749 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kTPC);
c1637e41 1750 }
1751 // track is in the sensitive strip
1752 if(id == fIdSens){
1753 // track is entering the strip
1754 if (gMC->IsTrackEntering()){
1755 Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp();
1756 vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows;
1757 // row numbers are autonomous for lower and upper sectors
1758 if(vol[0] > fTPCParam->GetNInnerSector()) {
1759 vol[1] -= fTPCParam->GetNRowLow();
1760 }
1761 //
1762 if(vol[0]<fTPCParam->GetNInnerSector()&&vol[1] == 0){
37831078 1763
c1637e41 1764 // lower sector, row 0, because Jouri wants to have this
6a905708 1765
c1637e41 1766 gMC->TrackMomentum(p);
1767 hits[0]=p[0];
1768 hits[1]=p[1];
1769 hits[2]=p[2];
1770 hits[3]=0.; // this hit has no energy loss
1771 // Get also the track time for pileup simulation
1772 hits[4]=gMC->TrackTime();
e61fd20d 1773
c1637e41 1774 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
1775 }
1776 //
e61fd20d 1777
c1637e41 1778 gMC->TrackPosition(p);
1779 hits[0]=p[0];
1780 hits[1]=p[1];
1781 hits[2]=p[2];
1782 hits[3]=0.; // this hit has no energy loss
1783 // Get also the track time for pileup simulation
1784 hits[4]=gMC->TrackTime();
930ee558 1785
c1637e41 1786 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
37831078 1787
c1637e41 1788 }
1789 else return;
1790 }
37831078 1791 //-----------------------------------------------------------------
c1637e41 1792 // charged particle is in the sensitive drift volume
37831078 1793 //-----------------------------------------------------------------
cfce8870 1794 if(gMC->TrackStep() > 0) {
b97617a6 1795 Int_t nel=0;
1796 if (!fPrimaryIonisation) {
1797 nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1;
1798 }
1799 else {
1800 Float_t edep = gMC->Edep();
1801 if (edep > 0.) nel = (Int_t)((gMC->Edep()*1.5)/kwIon) + 1;
1802 }
fe4da5cc 1803 nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV
c1637e41 1804 //
37831078 1805 gMC->TrackPosition(p);
1806 hits[0]=p[0];
1807 hits[1]=p[1];
1808 hits[2]=p[2];
fe4da5cc 1809 hits[3]=(Float_t)nel;
c1637e41 1810
fe4da5cc 1811 // Add this hit
c1637e41 1812
6a905708 1813 if (fHitType&&2){
1814 gMC->TrackMomentum(p);
1815 Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
1816 Float_t precision = (momentum>0.1) ? 0.002 :0.01;
1817 fTrackHits->SetHitPrecision(precision);
1818 }
e61fd20d 1819
1820 // Get also the track time for pileup simulation
1821 hits[4]=gMC->TrackTime();
c1637e41 1822
1823 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits);
0f2ff24c 1824 if (fDebugStreamer){
1825 // You can dump here what you need
1826 // function CreateDebugStremer() to be called in the Config.C macro
1827 // if you want to enable it
1828 // By default debug streaemer is OFF
1829 Float_t edep = gMC->Edep();
1830 Float_t tstep = gMC->TrackStep();
1831 Int_t pid=gMC->TrackPid();
1832 (*fDebugStreamer)<<"hit"<<
1833 "x="<<hits[0]<< // hit position
1834 "y="<<hits[1]<<
1835 "z="<<hits[2]<<
1836 "nel="<<hits[3]<< // number of electorns
1837 "tof="<<hits[4]<< // hit TOF
1838 "edep="<<edep<< // energy deposit
1839 "pid="<<pid<< // pid
1840 "step="<<tstep<<
1841 "p.="<<&p<<
1842 "\n";
1843 }
1844
c1637e41 1845 } // step>0
1846 } //within sector's limits
fe4da5cc 1847 // Stemax calculation for the next step
1848
1849 Float_t pp;
0a6d8768 1850 TLorentzVector mom;
b97617a6 1851 // below is valid only for Geant3 (fPromaryIonisation not set)
1852 if(!fPrimaryIonisation){
1853 gMC->TrackMomentum(mom);
1854 Float_t ptot=mom.Rho();
1855 Float_t betaGamma = ptot/gMC->TrackMass();
595bf2c3 1856
b97617a6 1857 Int_t pid=gMC->TrackPid();
1858 if((pid==kElectron || pid==kPositron) && ptot > 0.002)
1859 {
1860 pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau!
1861 }
1862 else
1863 {
1864
1865 betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg
b40afa5e 1866 pp=kprim*AliMathBase::BetheBlochAleph(betaGamma);
595bf2c3 1867
fe4da5cc 1868 }
1869
b97617a6 1870 Double_t rnd = gMC->GetRandom()->Rndm();
fe4da5cc 1871
b97617a6 1872 gMC->SetMaxStep(-TMath::Log(rnd)/pp);
1873 }
c1637e41 1874
fe4da5cc 1875}
1876
73042f01 1877