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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
16/*
17$Log$
b6668dd3 18Revision 1.14.2.2 2000/05/19 10:09:21 nilsen
19fix for bug with HP and Sun unix + fix for event display in ITS-working branch
c9a71be1 20
56d6a1ef 21Revision 1.14.2.1 2000/03/04 23:45:19 nilsen
22Fixed up the comments/documentation.
23
24Revision 1.14 1999/11/25 06:52:56 fca
25Correct value of drca
26
c4a5a168 27Revision 1.13.2.1 1999/11/25 06:52:21 fca
28Correct value of drca
29
30Revision 1.13 1999/10/27 11:16:26 fca
31Correction of problem in geometry
32
7963222e 33Revision 1.12 1999/10/22 08:25:25 fca
34remove double definition of destructors
35
1e3deba7 36Revision 1.11 1999/10/22 08:16:49 fca
37Correct destructors, thanks to I.Hrivnacova
38
5b8cc8df 39Revision 1.10 1999/10/06 19:56:50 fca
40Add destructor
41
1c1b73f8 42Revision 1.9 1999/10/05 08:05:09 fca
43Minor corrections for uninitialised variables.
44
593d2ea1 45Revision 1.8 1999/09/29 09:24:20 fca
46Introduction of the Copyright and cvs Log
47
4c039060 48*/
49
fe4da5cc 50///////////////////////////////////////////////////////////////////////////////
51// //
52// Inner Traking System version 1 //
58005f18 53// This class contains the base procedures for the Inner Tracking System //
fe4da5cc 54// //
58005f18 55// Authors: R. Barbera, A. Morsch.
56// version 1.
57// Created 1998.
58//
59// NOTE: THIS IS THE COARSE pre.TDR geometry of the ITS. THIS WILL NOT WORK
60// with the geometry or module classes or any analysis classes. You are
61// strongly encouraged to uses AliITSv5.
fe4da5cc 62// //
63///////////////////////////////////////////////////////////////////////////////
64
65#include <TMath.h>
66#include <TRandom.h>
67#include <TVector.h>
c9a71be1 68#include <TGeometry.h>
69#include <TNode.h>
70#include <TTUBE.h>
b6668dd3 71#include <TFile.h> // only required for Tracking function?
72#include <TCanvas.h>
73#include <TObjArray.h>
74#include <TClonesArray.h>
75
c9a71be1 76
77#include "AliMC.h"
78#include "AliConst.h"
79
58005f18 80#include "AliITShit.h"
fe4da5cc 81#include "AliITSv1.h"
82#include "AliRun.h"
83
fe4da5cc 84
85ClassImp(AliITSv1)
86
87//_____________________________________________________________________________
593d2ea1 88AliITSv1::AliITSv1() {
56d6a1ef 89////////////////////////////////////////////////////////////////////////
90// Standard default constructor for the ITS version 1.
91////////////////////////////////////////////////////////////////////////
593d2ea1 92 fId1N = 6;
93 fId1Name = new char*[fId1N];
94 fId1Name[0] = "ITS1";
95 fId1Name[1] = "ITS2";
96 fId1Name[2] = "ITS3";
97 fId1Name[3] = "ITS4";
98 fId1Name[4] = "ITS5";
99 fId1Name[5] = "ITS6";
fe4da5cc 100}
fe4da5cc 101//_____________________________________________________________________________
56d6a1ef 102AliITSv1::AliITSv1(const char *name, const char *title) : AliITS(name, title){
103////////////////////////////////////////////////////////////////////////
104// Standard constructor for the ITS version 1.
105////////////////////////////////////////////////////////////////////////
593d2ea1 106 fId1N = 6;
107 fId1Name = new char*[fId1N];
108 fId1Name[0] = "ITS1";
109 fId1Name[1] = "ITS2";
110 fId1Name[2] = "ITS3";
111 fId1Name[3] = "ITS4";
112 fId1Name[4] = "ITS5";
113 fId1Name[5] = "ITS6";
fe4da5cc 114}
b6668dd3 115//____________________________________________________________________________
116AliITSv1::AliITSv1(const AliITSv1 &source){
117////////////////////////////////////////////////////////////////////////
118// Copy Constructor for ITS version 1.
119////////////////////////////////////////////////////////////////////////
120 if(&source == this) return;
121 this->fId1N = source.fId1N;
122 this->fId1Name = new char*[fId1N];
123 for(Int_t i=0;i<6;i++) strcpy(this->fId1Name[i],source.fId1Name[i]);
124 return;
125}
126//_____________________________________________________________________________
127AliITSv1& AliITSv1::operator=(const AliITSv1 &source){
128////////////////////////////////////////////////////////////////////////
129// Assignment operator for the ITS version 1.
130////////////////////////////////////////////////////////////////////////
131 if(&source == this) return *this;
132 this->fId1N = source.fId1N;
133 this->fId1Name = new char*[fId1N];
134 for(Int_t i=0;i<6;i++) strcpy(this->fId1Name[i],source.fId1Name[i]);
135 return *this;
136}
1c1b73f8 137//_____________________________________________________________________________
138AliITSv1::~AliITSv1() {
56d6a1ef 139////////////////////////////////////////////////////////////////////////
140// Standard destructor for the ITS version 1.
141////////////////////////////////////////////////////////////////////////
1c1b73f8 142 delete [] fId1Name;
b6668dd3 143}//__________________________________________________________________________
c9a71be1 144void AliITSv1::BuildGeometry(){
b6668dd3 145////////////////////////////////////////////////////////////////////////
146// Geometry builder for the ITS version 1.
147////////////////////////////////////////////////////////////////////////
148 TNode *node, *top;
c9a71be1 149 const int kColorITS=kYellow;
150 //
b6668dd3 151 top = gAlice->GetGeometry()->GetNode("alice");
c9a71be1 152
153 new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
b6668dd3 154 top->cd();
155 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
156 node->SetLineColor(kColorITS);
157 fNodes->Add(node);
c9a71be1 158
159 new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
b6668dd3 160 top->cd();
161 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
162 node->SetLineColor(kColorITS);
163 fNodes->Add(node);
c9a71be1 164
165 new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
b6668dd3 166 top->cd();
167 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
168 node->SetLineColor(kColorITS);
169 fNodes->Add(node);
c9a71be1 170
171 new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
b6668dd3 172 top->cd();
173 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
174 node->SetLineColor(kColorITS);
175 fNodes->Add(node);
c9a71be1 176
177 new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
b6668dd3 178 top->cd();
179 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
180 node->SetLineColor(kColorITS);
181 fNodes->Add(node);
c9a71be1 182
183 new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
b6668dd3 184 top->cd();
185 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
186 node->SetLineColor(kColorITS);
187 fNodes->Add(node);
c9a71be1 188}
fe4da5cc 189//_____________________________________________________________________________
56d6a1ef 190void AliITSv1::CreateGeometry(){
191////////////////////////////////////////////////////////////////////////
192// This routine defines and Creates the geometry for version 1 of the ITS.
193////////////////////////////////////////////////////////////////////////
fe4da5cc 194
195 Float_t drcer[6] = { 0.,0.,.08,.08,0.,0. }; //CERAMICS THICKNESS
196 Float_t drepx[6] = { 0.,0.,0.,0.,.5357,.5357 }; //EPOXY THICKNESS
197 Float_t drpla[6] = { 0.,0.,0.,0.,.1786,.1786 }; //PLASTIC THICKNESS
198 Float_t dzb[6] = { 0.,0.,15.,15.,4.,4. }; //LENGTH OF BOXES
199 Float_t dphi[6] = { 72.,72.,72.,72.,50.6,45. }; //COVERED PHI-RANGE FOR LAYERS 1-6
200 Float_t rl[6] = { 3.9,7.6,14.,24.,40.,45. }; //SILICON LAYERS INNER RADIUS
201 Float_t drl[6] = { .755,.755,.809,.809,.7,.7 }; //THICKNESS OF LAYERS (in % radiation length)
202 Float_t dzl[6] = { 12.67,16.91,20.85,29.15,45.11,50.975 };//HALF LENGTH OF LAYERS
203 Float_t drpcb[6] = { 0.,0.,.06,.06,0.,0. }; //PCB THICKNESS
204 Float_t drcu[6] = { 0.,0.,.0504,.0504,.0357,.0357 }; //COPPER THICKNESS
205 Float_t drsi[6] = { 0.,0.,.006,.006,.3571,.3571 }; //SILICON THICKNESS
206
c4a5a168 207 Float_t drca, dzfc;
fe4da5cc 208 Int_t i, nsec;
b6668dd3 209 Float_t rend, drcatpc, dzco, zend, dits[3], rlim, drsu, zmax;
fe4da5cc 210 Float_t zpos, dzco1, dzco2;
211 Float_t drcac[6], acone, dphii;
212 Float_t pcits[15], xltpc;
213 Float_t rzcone, rstep, r0, z0, acable, fp, dz, zi, ri;
214 Int_t idrotm[399];
215 Float_t dgh[15];
216
ad51aeb0 217 Int_t *idtmed = fIdtmed->GetArray()-199;
fe4da5cc 218
219 // CONVERT INTO CM (RL(SI)=9.36 CM)
220 for (i = 0; i < 6; ++i) {
221 drl[i] = drl[i] / 100. * 9.36;
222 }
223
224 // SUPPORT ENDPLANE THICKNESS
225 drsu = 2.*0.06+1./20; // 1./20. is 1 cm of honeycomb (1/20 carbon density);
226
227 // CONE BELOW TPC
228
b6668dd3 229 drcatpc = 1.2/4.;
fe4da5cc 230
231 // CABLE THICKNESS (CONICAL CABLES CONNECTING THE LAYERS)
232
c4a5a168 233 drca = 0.2;
fe4da5cc 234
235 // ITS CONE ANGLE
236
237 acone = 45.;
238 acone *= kDegrad;
239
240 // CONE RADIUS AT 1ST LAYER
241
242 rzcone = 30.;
243
244 // FIELD CAGE HALF LENGTH
245
246 dzfc = 64.5;
247 rlim = 48.;
248 zmax = 80.;
249 xltpc = 275.;
250
251
252 // PARAMETERS FOR SMALL (1/2) ITS
253
254 for (i = 0; i < 6; ++i) {
255 dzl[i] /= 2.;
256 dzb[i] /= 2.;
257 }
258 drca /= 2.;
259 acone /= 2.;
b6668dd3 260 drcatpc /= 2.;
fe4da5cc 261 rzcone /= 2.;
262 dzfc /= 2.;
263 zmax /= 2.;
264 xltpc /= 2.;
265 acable = 15.;
266
267
268
269 // EQUAL DISTRIBUTION INTO THE 6 LAYERS
b6668dd3 270 rstep = drcatpc / 6.;
fe4da5cc 271 for (i = 0; i < 6; ++i) {
272 drcac[i] = (i+1) * rstep;
273 }
274
275 // NUMBER OF PHI SECTORS
276
277 nsec = 5;
278
279 // PACK IN PHI AS MUCH AS POSSIBLE
280 // NOW PACK USING THICKNESS
281
282 for (i = 0; i < 6; ++i) {
283
284// PACKING FACTOR
285 fp = rl[5] / rl[i];
286
287 // PHI-PACKING NOT SUFFICIENT ?
288
289 if (dphi[i]/45 < fp) {
290 drcac[i] = drcac[i] * fp * 45/dphi[i];
291 }
292 }
293
294
295 // --- Define ghost volume containing the six layers and fill it with air
296
297 dgh[0] = 3.5;
298 dgh[1] = 50.;
299 dgh[2] = zmax;
cfce8870 300 gMC->Gsvolu("ITSV", "TUBE", idtmed[275], dgh, 3);
fe4da5cc 301
302 // --- Place the ghost volume in its mother volume (ALIC) and make it
303 // invisible
304
cfce8870 305 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
306 gMC->Gsatt("ITSV", "SEEN", 0);
fe4da5cc 307
308 // ITS LAYERS (SILICON)
309
310 dits[0] = rl[0];
311 dits[1] = rl[0] + drl[0];
312 dits[2] = dzl[0];
cfce8870 313 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
314 gMC->Gspos("ITS1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 315
316 dits[0] = rl[1];
317 dits[1] = rl[1] + drl[1];
318 dits[2] = dzl[1];
cfce8870 319 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
320 gMC->Gspos("ITS2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 321
322 dits[0] = rl[2];
323 dits[1] = rl[2] + drl[2];
324 dits[2] = dzl[2];
cfce8870 325 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
326 gMC->Gspos("ITS3", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 327
328 dits[0] = rl[3];
329 dits[1] = rl[3] + drl[3];
330 dits[2] = dzl[3];
cfce8870 331 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
332 gMC->Gspos("ITS4", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 333
334 dits[0] = rl[4];
335 dits[1] = rl[4] + drl[4];
336 dits[2] = dzl[4];
cfce8870 337 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
338 gMC->Gspos("ITS5", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 339
340 dits[0] = rl[5];
341 dits[1] = rl[5] + drl[5];
342 dits[2] = dzl[5];
cfce8870 343 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
344 gMC->Gspos("ITS6", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 345
346 // ELECTRONICS BOXES
347
348 // PCB (layer #3 and #4)
349
cfce8870 350 gMC->Gsvolu("IPCB", "TUBE", idtmed[233], dits, 0);
fe4da5cc 351 for (i = 2; i < 4; ++i) {
352 dits[0] = rl[i];
353 dits[1] = dits[0] + drpcb[i];
354 dits[2] = dzb[i] / 2.;
355 zpos = dzl[i] + dits[2];
cfce8870 356 gMC->Gsposp("IPCB", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
357 gMC->Gsposp("IPCB", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 358 }
359
360 // COPPER (layer #3 and #4)
361
cfce8870 362 gMC->Gsvolu("ICO2", "TUBE", idtmed[234], dits, 0);
fe4da5cc 363 for (i = 2; i < 4; ++i) {
364 dits[0] = rl[i] + drpcb[i];
365 dits[1] = dits[0] + drcu[i];
366 dits[2] = dzb[i] / 2.;
367 zpos = dzl[i] + dits[2];
cfce8870 368 gMC->Gsposp("ICO2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
369 gMC->Gsposp("ICO2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 370 }
371
372 // CERAMICS (layer #3 and #4)
373
cfce8870 374 gMC->Gsvolu("ICER", "TUBE", idtmed[235], dits, 0);
fe4da5cc 375 for (i = 2; i < 4; ++i) {
376 dits[0] = rl[i] + drpcb[i] + drcu[i];
377 dits[1] = dits[0] + drcer[i];
378 dits[2] = dzb[i] / 2.;
379 zpos = dzl[i] + dits[2];
cfce8870 380 gMC->Gsposp("ICER", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
381 gMC->Gsposp("ICER", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 382 }
383
384 // SILICON (layer #3 and #4)
385
cfce8870 386 gMC->Gsvolu("ISI2", "TUBE", idtmed[226], dits, 0);
fe4da5cc 387 for (i = 2; i < 4; ++i) {
388 dits[0] = rl[i] + drpcb[i] + drcu[i] + drcer[i];
389 dits[1] = dits[0] + drsi[i];
390 dits[2] = dzb[i] / 2.;
391 zpos = dzl[i] + dits[2];
cfce8870 392 gMC->Gsposp("ISI2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
393 gMC->Gsposp("ISI2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 394 }
395
396 // PLASTIC (G10FR4) (layer #5 and #6)
397
cfce8870 398 gMC->Gsvolu("IPLA", "TUBE", idtmed[262], dits, 0);
fe4da5cc 399 for (i = 4; i < 6; ++i) {
400 dits[0] = rl[i];
401 dits[1] = dits[0] + drpla[i];
402 dits[2] = dzb[i] / 2.;
403 zpos = dzl[i] + dits[2];
cfce8870 404 gMC->Gsposp("IPLA", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
405 gMC->Gsposp("IPLA", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 406 }
407
408 // COPPER (layer #5 and #6)
409
cfce8870 410 gMC->Gsvolu("ICO3", "TUBE", idtmed[259], dits, 0);
fe4da5cc 411 for (i = 4; i < 6; ++i) {
412 dits[0] = rl[i] + drpla[i];
413 dits[1] = dits[0] + drcu[i];
414 dits[2] = dzb[i] / 2.;
415 zpos = dzl[i] + dits[2];
cfce8870 416 gMC->Gsposp("ICO3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
417 gMC->Gsposp("ICO3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 418 }
419
420 // EPOXY (layer #5 and #6)
421
cfce8870 422 gMC->Gsvolu("IEPX", "TUBE", idtmed[262], dits, 0);
fe4da5cc 423 for (i = 4; i < 6; ++i) {
424 dits[0] = rl[i] + drpla[i] + drcu[i];
425 dits[1] = dits[0] + drepx[i];
426 dits[2] = dzb[i] / 2.;
427 zpos = dzl[i] + dits[2];
cfce8870 428 gMC->Gsposp("IEPX", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
429 gMC->Gsposp("IEPX", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 430 }
431
432 // SILICON (layer #5 and #6)
433
cfce8870 434 gMC->Gsvolu("ISI3", "TUBE", idtmed[251], dits, 0);
fe4da5cc 435 for (i = 4; i < 6; ++i) {
436 dits[0] = rl[i] + drpla[i] + drcu[i] + drepx[i];
437 dits[1] = dits[0] + drsi[i];
438 dits[2] = dzb[i] / 2.;
439 zpos = dzl[i] + dits[2];
cfce8870 440 gMC->Gsposp("ISI3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
441 gMC->Gsposp("ISI3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 442 }
443
444 // SUPPORT
445
cfce8870 446 gMC->Gsvolu("ISUP", "TUBE", idtmed[274], dits, 0);
fe4da5cc 447 for (i = 0; i < 6; ++i) {
448 dits[0] = rl[i];
7963222e 449 if (i < 5) dits[1] = rl[i+1];
fe4da5cc 450 else dits[1] = rlim;
451 dits[2] = drsu / 2.;
452 zpos = dzl[i] + dzb[i] + dits[2];
cfce8870 453 gMC->Gsposp("ISUP", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
454 gMC->Gsposp("ISUP", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 455 }
456
457 // CABLES (HORIZONTAL)
458
cfce8870 459 gMC->Gsvolu("ICHO", "TUBE", idtmed[278], dits, 0);
fe4da5cc 460 for (i = 0; i < 6; ++i) {
461 dits[0] = rl[i];
462 dits[1] = dits[0] + drca;
463 dits[2] = (rzcone + TMath::Tan(acone) * (rl[i] - rl[0]) - (dzl[i]+ dzb[i] + drsu)) / 2.;
464 zpos = dzl[i - 1] + dzb[i] + drsu + dits[2];
cfce8870 465 gMC->Gsposp("ICHO", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
466 gMC->Gsposp("ICHO", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 467 }
468 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
469 pcits[0] = 0.;
470 pcits[1] = 360.;
471 pcits[2] = 2.;
472 pcits[3] = rzcone;
473 pcits[4] = 3.5;
474 pcits[5] = rl[0];
475 pcits[6] = pcits[3] + TMath::Tan(acone) * (rlim - rl[0]);
476 pcits[7] = rlim - rl[0] + 3.5;
477 pcits[8] = rlim;
cfce8870 478 gMC->Gsvolu("ICMO", "PCON", idtmed[275], pcits, 9);
fe4da5cc 479 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
cfce8870 480 gMC->Gspos("ICMO", 1, "ITSV", 0., 0., 0., 0, "ONLY");
481 gMC->Gspos("ICMO", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
fe4da5cc 482
483 // DIVIDE INTO NSEC PHI-SECTIONS
484
cfce8870 485 gMC->Gsdvn("ICMD", "ICMO", nsec, 2);
486 gMC->Gsatt("ICMO", "SEEN", 0);
487 gMC->Gsatt("ICMD", "SEEN", 0);
fe4da5cc 488
489 // CONICAL CABLES
490
491 pcits[2] = 2.;
cfce8870 492 gMC->Gsvolu("ICCO", "PCON", idtmed[278], pcits, 0);
fe4da5cc 493 for (i = 1; i < 6; ++i) {
494 pcits[0] = -dphi[i] / 2.;
495 pcits[1] = dphi[i];
496 if (i < 5) {
497 dzco = TMath::Tan(acone) * (rl[i+1] - rl[i]);
498 } else {
499 dzco1 = zmax - (rzcone + TMath::Tan(acone) * (rl[5] - rl[0])) -2.;
500 dzco2 = (rlim - rl[5]) * TMath::Tan(acone);
501 if (rl[5] + dzco1 / TMath::Tan(acone) < rlim) {
502 dzco = dzco1;
503 } else {
504 dzco = dzco2;
505 }
506 }
507 pcits[3] = rzcone + TMath::Tan(acone) * (rl[i] - rl[0]);
508 pcits[4] = rl[i] - drcac[i] / TMath::Sin(acone);
509 pcits[5] = rl[i];
510 pcits[6] = pcits[3] + dzco;
511 pcits[7] = rl[i] + dzco / TMath::Tan(acone) - drcac[i] / TMath::Sin(acone);
512 pcits[8] = rl[i] + dzco / TMath::Tan(acone);
513
cfce8870 514 gMC->Gsposp("ICCO", i, "ICMD", 0., 0., 0., 0, "ONLY", pcits, 9);
fe4da5cc 515
516 }
517 zend = pcits[6];
518 rend = pcits[8];
519
520 // CONICAL CABLES BELOW TPC
521
522 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
523 pcits[0] = 0.;
524 pcits[1] = 360.;
525 pcits[2] = 2.;
526 pcits[3] = zend;
527 pcits[5] = rend;
b6668dd3 528 pcits[4] = pcits[5] - drcatpc;
fe4da5cc 529 pcits[6] = xltpc;
530 pcits[8] = pcits[4] + (pcits[6] - pcits[3]) * TMath::Tan(acable * kDegrad);
b6668dd3 531 pcits[7] = pcits[8] - drcatpc;
fe4da5cc 532 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
cfce8870 533 gMC->Gsvolu("ICCM", "PCON", idtmed[275], pcits, 9);
534 gMC->Gspos("ICCM", 1, "ALIC", 0., 0., 0., 0, "ONLY");
535 gMC->Gspos("ICCM", 2, "ALIC", 0., 0., 0., idrotm[200], "ONLY");
536 gMC->Gsdvn("ITMD", "ICCM", nsec, 2);
537 gMC->Gsatt("ITMD", "SEEN", 0);
538 gMC->Gsatt("ICCM", "SEEN", 0);
fe4da5cc 539
540 // NOW PLACE SEGMENTS WITH DECREASING PHI SEGMENTS INTO THE
541 // GHOST-VOLUME
542
543 pcits[2] = 2.;
cfce8870 544 gMC->Gsvolu("ITTT", "PCON", idtmed[278], pcits, 0);
fe4da5cc 545 r0 = rend;
546 z0 = zend;
547 dz = (xltpc - zend) / 9.;
548 for (i = 0; i < 9; ++i) {
549 zi = z0 + i*dz + dz / 2.;
550 ri = r0 + (zi - z0) * TMath::Tan(acable * kDegrad);
551 dphii = dphi[5] * r0 / ri;
552 pcits[0] = -dphii / 2.;
553 pcits[1] = dphii;
554 pcits[3] = zi - dz / 2.;
555 pcits[5] = r0 + (pcits[3] - z0) * TMath::Tan(acable * kDegrad);
b6668dd3 556 pcits[4] = pcits[5] - drcatpc;
fe4da5cc 557 pcits[6] = zi + dz / 2.;
558 pcits[8] = r0 + (pcits[6] - z0) * TMath::Tan(acable * kDegrad);
b6668dd3 559 pcits[7] = pcits[8] - drcatpc;
fe4da5cc 560
cfce8870 561 gMC->Gsposp("ITTT", i+1, "ITMD", 0., 0., 0., 0, "ONLY", pcits, 9);
fe4da5cc 562 }
563
564 // --- Outputs the geometry tree in the EUCLID/CAD format
565
566 if (fEuclidOut) {
cfce8870 567 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
fe4da5cc 568 }
569}
fe4da5cc 570//_____________________________________________________________________________
56d6a1ef 571void AliITSv1::CreateMaterials(){
572////////////////////////////////////////////////////////////////////////
c9a71be1 573 //
574 // Create ITS materials
575 // This function defines the default materials used in the Geant
b6668dd3 576 // Monte Carlo simulations for the geometries AliITSv1 and AliITSv3.
577 // In general it is automatically replaced by
c9a71be1 578 // the CreatMaterials routine defined in AliITSv?. Should the function
579 // CreateMaterials not exist for the geometry version you are using this
580 // one is used. See the definition found in AliITSv5 or the other routine
581 // for a complete definition.
582 //
583 // Water H2O
584 Float_t awat[2] = { 1.00794,15.9994 };
585 Float_t zwat[2] = { 1.,8. };
586 Float_t wwat[2] = { 2.,1. };
587 Float_t denswat = 1.;
588 // Freon
589 Float_t afre[2] = { 12.011,18.9984032 };
590 Float_t zfre[2] = { 6.,9. };
591 Float_t wfre[2] = { 5.,12. };
592 Float_t densfre = 1.5;
593 // Ceramics
594 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
595 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
596 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
597 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
598 Float_t denscer = 3.6;
599 //
600 // 60% SiO2 , 40% G10FR4
601 // PC board
602 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
603 Float_t zpcb[3] = { 14.,8.,8.875 };
604 Float_t wpcb[3] = { .28,.32,.4 };
605 Float_t denspcb = 1.8;
606 // POLYETHYL
607 Float_t apoly[2] = { 12.01,1. };
608 Float_t zpoly[2] = { 6.,1. };
609 Float_t wpoly[2] = { .33,.67 };
610 // SERVICES
611 Float_t zserv[4] = { 1.,6.,26.,29. };
612 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
613 Float_t wserv[4] = { .014,.086,.42,.48 };
614
b6668dd3 615 Int_t isxfld = gAlice->Field()->Integ();
616 Float_t sxmgmx = gAlice->Field()->Max();
c9a71be1 617
618
619 // --- Define the various materials for GEANT ---
620
621 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
622
623 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
624 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
625 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
626 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
627 // v. dens
628 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
629 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
630 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
631 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
632 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
633 // **
b6668dd3 634 AliMedium(0, "SPD Si$", 0, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
635 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
636 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
637 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
638 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
639 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
640 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
641 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
642 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
c9a71be1 643
644 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
645
646 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
647 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
648 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
649 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
650 // v. dens
651 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
652 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
653 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
654 // After a call with ratios by number (negative number of elements),
655 // the ratio array is changed to the ratio by weight, so all successive
656 // calls with the same array must specify the number of elements as
657 // positive
658 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
659 // After a call with ratios by number (negative number of elements),
660 // the ratio array is changed to the ratio by weight, so all successive
661 // calls with the same array must specify the number of elements as
662 // positive
663 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
664 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
665 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
666 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
667 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
668 // **
669 // check A and Z
b6668dd3 670 AliMedium(25, "SDD Si$", 25, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
671 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
672 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
673 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
674 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
675 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
676 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
677 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
678 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
679 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
680 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
681 AliMedium(36, "SDD Ceramics$",36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
682 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
c9a71be1 683
684 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
685
686 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
687 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
688 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
689 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
690 // v. dens
691 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
692 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
693 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
694 // After a call with ratios by number (negative number of elements),
695 // the ratio array is changed to the ratio by weight, so all successive
696 // calls with the same array must specify the number of elements as
697 // positive
698 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
699 // After a call with ratios by number (negative number of elements),
700 // the ratio array is changed to the ratio by weight, so all successive
701 // calls with the same array must specify the number of elements as
702 // positive
703 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
704 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
705 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
706 // After a call with ratios by number (negative number of elements),
707 // the ratio array is changed to the ratio by weight, so all successive
708 // calls with the same array must specify the number of elements as
709 // positive
710 AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
711 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
712 // check A and Z
713 AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
714 // **
b6668dd3 715 AliMedium(50, "SSD Si$", 50, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
716 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
717 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
718 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
719 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
720 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
721 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
722 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
723 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
724 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
725 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
726 AliMedium(61, "SSD Ceramics$",61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
727 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
728 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
c9a71be1 729
730 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
731
732 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
733 // verify density
734 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
735 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
736 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
737 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
738 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
739 // After a call with ratios by number (negative number of elements),
740 // the ratio array is changed to the ratio by weight, so all successive
741 // calls with the same array must specify the number of elements as
742 // positive
743 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
744 // **
b6668dd3 745 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
746 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
747 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
748 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
749 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
750 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
751 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
fe4da5cc 752}
fe4da5cc 753//_____________________________________________________________________________
593d2ea1 754void AliITSv1::Init(){
56d6a1ef 755////////////////////////////////////////////////////////////////////////
756// Initialise the ITS after it has been created.
757////////////////////////////////////////////////////////////////////////
593d2ea1 758 Int_t i,j,l;
759
760 fIdN = fId1N;;
761 fIdName = new char*[fIdN];
762 fIdSens = new Int_t[fIdN];
763 for(i=0;i<fId1N;i++) {
764 l = strlen(fId1Name[i]);
765 fIdName[i] = new char[l+1];
766 for(j=0;j<l;j++) fIdName[i][j] = fId1Name[i][j];
767 fIdName[i][l] = '\0'; // Null terminate this string.
768 } // end for i
769 //
770 AliITS::Init();
771 fMajorVersion = 1;
772 fMinorVersion = 0;
fe4da5cc 773}
774
775//_____________________________________________________________________________
56d6a1ef 776void AliITSv1::DrawModule(){
777////////////////////////////////////////////////////////////////////////
778// Draw a shaded view of the FMD version 1.
779////////////////////////////////////////////////////////////////////////
fe4da5cc 780
781 // Set everything unseen
cfce8870 782 gMC->Gsatt("*", "seen", -1);
fe4da5cc 783 //
784 // Set ALIC mother visible
cfce8870 785 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 786 //
787 // Set the volumes visible
cfce8870 788 gMC->Gsatt("ITSV","SEEN",0);
789 gMC->Gsatt("ITS1","SEEN",1);
790 gMC->Gsatt("ITS2","SEEN",1);
791 gMC->Gsatt("ITS3","SEEN",1);
792 gMC->Gsatt("ITS4","SEEN",1);
793 gMC->Gsatt("ITS5","SEEN",1);
794 gMC->Gsatt("ITS6","SEEN",1);
fe4da5cc 795
cfce8870 796 gMC->Gsatt("IPCB","SEEN",1);
797 gMC->Gsatt("ICO2","SEEN",1);
798 gMC->Gsatt("ICER","SEEN",0);
799 gMC->Gsatt("ISI2","SEEN",0);
800 gMC->Gsatt("IPLA","SEEN",0);
801 gMC->Gsatt("ICO3","SEEN",0);
802 gMC->Gsatt("IEPX","SEEN",0);
803 gMC->Gsatt("ISI3","SEEN",1);
804 gMC->Gsatt("ISUP","SEEN",0);
805 gMC->Gsatt("ICHO","SEEN",0);
806 gMC->Gsatt("ICMO","SEEN",0);
807 gMC->Gsatt("ICMD","SEEN",0);
808 gMC->Gsatt("ICCO","SEEN",1);
809 gMC->Gsatt("ICCM","SEEN",0);
810 gMC->Gsatt("ITMD","SEEN",0);
811 gMC->Gsatt("ITTT","SEEN",1);
fe4da5cc 812
813 //
cfce8870 814 gMC->Gdopt("hide", "on");
815 gMC->Gdopt("shad", "on");
816 gMC->Gsatt("*", "fill", 7);
817 gMC->SetClipBox(".");
818 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
819 gMC->DefaultRange();
820 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
821 gMC->Gdhead(1111, "Inner Tracking System Version 1");
822 gMC->Gdman(17, 6, "MAN");
fe4da5cc 823}
fe4da5cc 824//_____________________________________________________________________________
56d6a1ef 825void AliITSv1::StepManager(){
826////////////////////////////////////////////////////////////////////////
827// Called for every step in the ITS, then calles the AliITShit class
828// creator with the information to be recoreded about that hit.
829////////////////////////////////////////////////////////////////////////
fe4da5cc 830 Int_t copy, id;
58005f18 831 Float_t hits[8];
832 Int_t vol[4];
0a6d8768 833 TLorentzVector position, momentum;
fe4da5cc 834 TClonesArray &lhits = *fHits;
fe4da5cc 835 //
58005f18 836 // Track status
837 vol[3] = 0;
838 if(gMC->IsTrackInside()) vol[3] += 1;
839 if(gMC->IsTrackEntering()) vol[3] += 2;
840 if(gMC->IsTrackExiting()) vol[3] += 4;
841 if(gMC->IsTrackOut()) vol[3] += 8;
842 if(gMC->IsTrackDisappeared()) vol[3] += 16;
843 if(gMC->IsTrackStop()) vol[3] += 32;
844 if(gMC->IsTrackAlive()) vol[3] += 64;
845 //
846 // Fill hit structure.
56d6a1ef 847 if( !(gMC->TrackCharge()) ) return;
fe4da5cc 848 //
849 // Only entering charged tracks
58005f18 850 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
fe4da5cc 851 vol[0]=1;
0a6d8768 852 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 853 vol[1]=copy;
0a6d8768 854 id=gMC->CurrentVolOffID(2,copy);
fe4da5cc 855 vol[2]=copy;
58005f18 856 } else if(id==fIdSens[1]) {
fe4da5cc 857 vol[0]=2;
0a6d8768 858 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 859 vol[1]=copy;
0a6d8768 860 id=gMC->CurrentVolOffID(2,copy);
fe4da5cc 861 vol[2]=copy;
58005f18 862 } else if(id==fIdSens[2]) {
fe4da5cc 863 vol[0]=3;
864 vol[1]=copy;
0a6d8768 865 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 866 vol[2]=copy;
58005f18 867 } else if(id==fIdSens[3]) {
fe4da5cc 868 vol[0]=4;
869 vol[1]=copy;
0a6d8768 870 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 871 vol[2]=copy;
58005f18 872 } else if(id==fIdSens[4]) {
fe4da5cc 873 vol[0]=5;
874 vol[1]=copy;
0a6d8768 875 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 876 vol[2]=copy;
58005f18 877 } else if(id==fIdSens[5]) {
fe4da5cc 878 vol[0]=6;
879 vol[1]=copy;
0a6d8768 880 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 881 vol[2]=copy;
882 } else return;
cfce8870 883 gMC->TrackPosition(position);
884 gMC->TrackMomentum(momentum);
fe4da5cc 885 hits[0]=position[0];
886 hits[1]=position[1];
887 hits[2]=position[2];
0a6d8768 888 hits[3]=momentum[0];
889 hits[4]=momentum[1];
58005f18 890 hits[5]=momentum[2];
cfce8870 891 hits[6]=gMC->Edep();
58005f18 892 hits[7]=gMC->TrackTime();
fe4da5cc 893 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
fe4da5cc 894}
593d2ea1 895//____________________________________________________________________________
56d6a1ef 896void AliITSv1::Streamer(TBuffer &R__b){
897////////////////////////////////////////////////////////////////////////
898// A dummy Streamer function for this class AliITSv1. By default it
899// only streams the AliITS class as it is required. Since this class
900// dosen't contain any "real" data to be saved, it doesn't.
901////////////////////////////////////////////////////////////////////////
593d2ea1 902
b6668dd3 903 printf("AliITSv1Streamer Starting\n");
593d2ea1 904 if (R__b.IsReading()) {
905 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
906 AliITS::Streamer(R__b);
907 // This information does not need to be read. It is "hard wired"
908 // into this class via its creators.
909 //R__b >> fId1N;
910 //R__b.ReadArray(fId1Name);
911 } else {
912 R__b.WriteVersion(AliITSv1::IsA());
913 AliITS::Streamer(R__b);
914 // This information does not need to be saved. It is "hard wired"
915 // into this class via its creators.
916 //R__b << fId1N;
917 //R__b.WriteArray(fId1Name, __COUNTER__);
56d6a1ef 918 } // end if R__b.IsReading()
b6668dd3 919 printf("AliITSv1Streamer Finishing\n");
593d2ea1 920}