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69efe7cb 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$Log$
e8031268 18Revision 1.5 2000/10/16 13:49:15 barbera
19Services volumes slightly modified and material added following Pierluigi Barberis' information
20
e6892b92 21Revision 1.4 2000/10/07 15:33:07 barbera
22Small corrections to the ITSV mother volume
23
990d421f 24Revision 1.3 2000/10/07 13:06:50 barbera
25Some new materials and media defined
26
d12d92a5 27Revision 1.2 2000/10/07 10:42:43 barbera
28Mother volume ITSV corrected
29
c6e3abc5 30Revision 1.1 2000/10/06 23:09:12 barbera
31New coarse geometry (symmetric services
32
69efe7cb 33Revision 1.20 2000/10/02 21:28:08 fca
34Removal of useless dependecies via forward declarations
35
36Revision 1.19 2000/07/10 16:07:19 fca
37Release version of ITS code
38
39Revision 1.14.2.2 2000/05/19 10:09:21 nilsen
40fix for bug with HP and Sun unix + fix for event display in ITS-working branch
41
42Revision 1.14.2.1 2000/03/04 23:45:19 nilsen
43Fixed up the comments/documentation.
44
45Revision 1.14 1999/11/25 06:52:56 fca
46Correct value of drca
47
48Revision 1.13.2.1 1999/11/25 06:52:21 fca
49Correct value of drca
50
51Revision 1.13 1999/10/27 11:16:26 fca
52Correction of problem in geometry
53
54Revision 1.12 1999/10/22 08:25:25 fca
55remove double definition of destructors
56
57Revision 1.11 1999/10/22 08:16:49 fca
58Correct destructors, thanks to I.Hrivnacova
59
60Revision 1.10 1999/10/06 19:56:50 fca
61Add destructor
62
63Revision 1.9 1999/10/05 08:05:09 fca
64Minor corrections for uninitialised variables.
65
66Revision 1.8 1999/09/29 09:24:20 fca
67Introduction of the Copyright and cvs Log
68
69*/
70
71///////////////////////////////////////////////////////////////////////////////
72// //
73// Inner Traking System version PPR coarse symmetric //
74// This class contains the base procedures for the Inner Tracking System //
75// //
76// Authors: R. Barbera
77// version 6.
78// Created 2000.
79//
80// NOTE: THIS IS THE COARSE SYMMETRIC PPR geometry of the ITS.
81// THIS WILL NOT WORK
82// with the geometry or module classes or any analysis classes. You are
83// strongly encouraged to uses AliITSv5.
84// //
85///////////////////////////////////////////////////////////////////////////////
86
87#include <TMath.h>
88#include <TRandom.h>
89#include <TVector.h>
90#include <TGeometry.h>
91#include <TNode.h>
92#include <TTUBE.h>
93#include <TFile.h> // only required for Tracking function?
94#include <TCanvas.h>
95#include <TObjArray.h>
96#include <TClonesArray.h>
97
98
99#include "AliMC.h"
100#include "AliMagF.h"
101#include "AliConst.h"
102
103#include "AliITShit.h"
104#include "AliITSvPPRcoarsesymm.h"
105#include "AliRun.h"
106
107
108ClassImp(AliITSvPPRcoarsesymm)
109
110//_____________________________________________________________________________
111AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm() {
112////////////////////////////////////////////////////////////////////////
113// Standard default constructor for the ITS version 7.
114////////////////////////////////////////////////////////////////////////
115
116 fIdN = 6;
117 fIdName = new TString[fIdN];
118 fIdName[0] = "ITS1";
119 fIdName[1] = "ITS2";
120 fIdName[2] = "ITS3";
121 fIdName[3] = "ITS4";
122 fIdName[4] = "ITS5";
123 fIdName[5] = "ITS6";
124 fIdSens = new Int_t[fIdN];
125 for (Int_t i=0;i<fIdN;i++) fIdSens[i]=fIdName[i].Length();
126}
127//_____________________________________________________________________________
128AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm(const char *name, const char *title) : AliITS(name, title){
129////////////////////////////////////////////////////////////////////////
130// Standard constructor for the ITS version 7.
131////////////////////////////////////////////////////////////////////////
132
133 fIdN = 6;
134 fIdName = new TString[fIdN];
135 fIdName[0] = "ITS1";
136 fIdName[1] = "ITS2";
137 fIdName[2] = "ITS3";
138 fIdName[3] = "ITS4";
139 fIdName[4] = "ITS5";
140 fIdName[5] = "ITS6";
141 fIdSens = new Int_t[fIdN];
142 for (Int_t i=0;i<fIdN;i++) fIdSens[i]=fIdName[i].Length();
143
144}
145//____________________________________________________________________________
146AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm(const AliITSvPPRcoarsesymm &source){
147////////////////////////////////////////////////////////////////////////
148// Copy Constructor for ITS version 7.
149////////////////////////////////////////////////////////////////////////
150 if(&source == this) return;
151 printf("Not allowed to copy AliITSvPPRcoarsesymm\n");
152 return;
153}
154//_____________________________________________________________________________
155AliITSvPPRcoarsesymm& AliITSvPPRcoarsesymm::operator=(const AliITSvPPRcoarsesymm &source){
156////////////////////////////////////////////////////////////////////////
157// Assignment operator for the ITS version 7.
158////////////////////////////////////////////////////////////////////////
159 if(&source == this) return *this;
160 printf("Not allowed to copy AliITSvPPRcoarsesymm\n");
161 return *this;
162}
163//_____________________________________________________________________________
164AliITSvPPRcoarsesymm::~AliITSvPPRcoarsesymm() {
165////////////////////////////////////////////////////////////////////////
166// Standard destructor for the ITS version 7.
167////////////////////////////////////////////////////////////////////////
168}
169
170//__________________________________________________________________________
171void AliITSvPPRcoarsesymm::BuildGeometry(){
172////////////////////////////////////////////////////////////////////////
173// Geometry builder for the ITS version 7.
174////////////////////////////////////////////////////////////////////////
175 TNode *node, *top;
176 const int kColorITS=kYellow;
177 //
178 top = gAlice->GetGeometry()->GetNode("alice");
179
180 new TTUBE("S_layer1","Layer1 of ITS","void",3.95,3.95+0.05475,12.25);
181 top->cd();
182 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
183 node->SetLineColor(kColorITS);
184 fNodes->Add(node);
185
186 new TTUBE("S_layer2","Layer2 of ITS","void",7.,7.+0.05475,16.3);
187 top->cd();
188 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
189 node->SetLineColor(kColorITS);
190 fNodes->Add(node);
191
192 new TTUBE("S_layer3","Layer3 of ITS","void",15.,15.+0.05288,21.1);
193 top->cd();
194 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
195 node->SetLineColor(kColorITS);
196 fNodes->Add(node);
197
198 new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
199 top->cd();
200 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
201 node->SetLineColor(kColorITS);
202 fNodes->Add(node);
203
204 new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
205 top->cd();
206 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
207 node->SetLineColor(kColorITS);
208 fNodes->Add(node);
209
210 new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
211 top->cd();
212 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
213 node->SetLineColor(kColorITS);
214 fNodes->Add(node);
215}
216//_____________________________________________________________________________
217void AliITSvPPRcoarsesymm::CreateGeometry(){
218////////////////////////////////////////////////////////////////////////
219// This routine defines and Creates the geometry for version 7 of the ITS.
220////////////////////////////////////////////////////////////////////////
221
222 //INNER RADII OF THE SILICON LAYERS
223 Float_t rl[6] = { 3.95,7.,15.,24.,38.1,43.5765 };
224 //THICKNESSES OF LAYERS (in % radiation length)
225 Float_t drl[6] = { 1.03,1.03+0.36,0.34+0.94,0.95,0.34+0.91,0.87 };
226 //HALF LENGTHS OF LAYERS
227 Float_t dzl[6] = { 14.344,14.344,25.1,32.1,49.405,55.27 };
228 //LENGTHS OF END-LADDER BOXES (ALL INCLUDED)
229 Float_t dzb[6] = { 17.,17.,15.,17.,12.,11. }; // check !!
230 //THICKNESSES OF END-LADDER BOXES (ALL INCLUDED)
231 Float_t drb[6] = { 1.5,1.5,5.,5.,3.,3. }; // check spd and ssd !!
232
233
234 Float_t dits[3], rlim, zmax;
235 Float_t zpos;
236 Float_t pcits[15], xltpc;
237 Int_t idrotm[399], i;
238 Float_t dgh[50];
239
240 Int_t *idtmed = fIdtmed->GetArray()-199;
241
242 // CONVERT INTO CM (RL(SI)=9.36 CM)
243 for (i = 0; i < 6; ++i) {
244 drl[i] = drl[i] / 100. * 9.36;
245 }
246
247 // FIELD CAGE HALF LENGTH
248
249 rlim = 56.;
250 zmax = 76.708;
251 xltpc = 284.;
252
c6e3abc5 253 // --- Define ghost volume containing the whole ITS (including services)
254 // and fill it with air
255
256 dgh[0] = 0.;
257 dgh[1] = 360.;
258 dgh[2] = 12.;
259 dgh[3] = -xltpc-5.-0.1;
260 dgh[4] = 62.4;
261 dgh[5] = 85.;
262 dgh[6] = -xltpc;
263 dgh[7] = 61.5;
264 dgh[8] = 85.;
265 dgh[9] = -xltpc;
266 dgh[10] = 61.5;
267 dgh[11] = 61.5+4.;
268 dgh[12] = -100.7;
269 dgh[13] = 44.9;
270 dgh[14] = 56.1;
990d421f 271 dgh[15] = -77.2;
c6e3abc5 272 dgh[16] = 44.9;
273 dgh[17] = 56.1;
274 dgh[18] = -36.;
275 dgh[19] = 3.29;
276 dgh[20] = 56.1;
277 dgh[21] = 36.;
278 dgh[22] = 3.29;
279 dgh[23] = 56.1;
990d421f 280 dgh[24] = 77.2;
c6e3abc5 281 dgh[25] = 44.9;
282 dgh[26] = 56.1;
283 dgh[27] = 100.7;
284 dgh[28] = 44.9;
285 dgh[29] = 56.1;
286 dgh[30] = xltpc;
287 dgh[31] = 61.5;
288 dgh[32] = 61.5+4.;
289 dgh[33] = xltpc;
290 dgh[34] = 61.5;
291 dgh[35] = 85.;
292 dgh[36] = xltpc+4.+0.1;
293 dgh[37] = 62.4;
294 dgh[38] = 85.;
295
296 gMC->Gsvolu("ITSV", "PCON", idtmed[275], dgh, 39);
297
298 // --- Place the ghost volume in its mother volume (ALIC) and make it
299 // invisible
300
301 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
302 //gMC->Gsatt("ITSV", "SEEN", 0);
303
69efe7cb 304
305 // --- Define ghost volume containing the six layers and fill it with air
306
307 dgh[0] = 0.;
308 dgh[1] = 360.;
309 dgh[2] = 4.;
e8031268 310 dgh[3] = -77.2;
69efe7cb 311 dgh[4] = 45.;
312 dgh[5] = 56.;
313 dgh[6] = -36.;
314 dgh[7] = 3.3;
315 dgh[8] = 56.;
316 dgh[9] = 36.;
317 dgh[10] = 3.3;
318 dgh[11] = 56.;
e8031268 319 dgh[12] = 77.2;
69efe7cb 320 dgh[13] = 45.;
321 dgh[14] = 56.;
c6e3abc5 322 gMC->Gsvolu("ITSD", "PCON", idtmed[275], dgh, 15);
69efe7cb 323
c6e3abc5 324 // --- Place the ghost volume in its mother volume (ALIC) and make it
69efe7cb 325 // invisible
326
c6e3abc5 327 gMC->Gspos("ITSD", 1, "ITSV", 0., 0., 0., 0, "ONLY");
69efe7cb 328 //gMC->Gsatt("ITSV", "SEEN", 0);
329
330 // ITS LAYERS (SILICON)
331
332 dits[0] = rl[0];
333 dits[1] = rl[0] + drl[0];
334 dits[2] = dzl[0];
335 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
c6e3abc5 336 gMC->Gspos("ITS1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 337
338 dits[0] = rl[1];
339 dits[1] = rl[1] + drl[1];
340 dits[2] = dzl[1];
341 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
c6e3abc5 342 gMC->Gspos("ITS2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 343
344 dits[0] = rl[2];
345 dits[1] = rl[2] + drl[2];
346 dits[2] = dzl[2];
347 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
c6e3abc5 348 gMC->Gspos("ITS3", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 349
350 dits[0] = rl[3];
351 dits[1] = rl[3] + drl[3];
352 dits[2] = dzl[3];
353 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
c6e3abc5 354 gMC->Gspos("ITS4", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 355
356 dits[0] = rl[4];
357 dits[1] = rl[4] + drl[4];
358 dits[2] = dzl[4];
359 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
c6e3abc5 360 gMC->Gspos("ITS5", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 361
362 dits[0] = rl[5];
363 dits[1] = rl[5] + drl[5];
364 dits[2] = dzl[5];
365 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
c6e3abc5 366 gMC->Gspos("ITS6", 1, "ITSD", 0., 0., 0., 0, "ONLY");
69efe7cb 367
d12d92a5 368 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SPD
69efe7cb 369
d12d92a5 370 gMC->Gsvolu("IEL1", "TUBE", idtmed[208], dits, 0);
371 for (i = 0; i < 2; i++) {
69efe7cb 372 dits[0] = rl[i];
373 dits[1] = dits[0] + drb[i];
374 dits[2] = dzb[i] / 2.;
375 zpos = dzl[i] + dits[2];
d12d92a5 376 gMC->Gsposp("IEL1", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
377 gMC->Gsposp("IEL1", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
69efe7cb 378 }
d12d92a5 379
380 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SDD
381
382 gMC->Gsvolu("IEL2", "TUBE", idtmed[237], dits, 0);
383 for (i = 2; i < 4; i++) {
384 dits[0] = rl[i];
385 dits[1] = dits[0] + drb[i];
386 dits[2] = dzb[i] / 2.;
387 zpos = dzl[i] + dits[2];
388 gMC->Gsposp("IEL2", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
389 gMC->Gsposp("IEL2", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
390 }
391
392 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SSD
393
394 gMC->Gsvolu("IEL3", "TUBE", idtmed[263], dits, 0);
395 for (i = 4; i < 6; i++) {
396 dits[0] = rl[i];
397 dits[1] = dits[0] + drb[i];
398 dits[2] = dzb[i] / 2.;
399 zpos = dzl[i] + dits[2];
400 gMC->Gsposp("IEL3", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
401 gMC->Gsposp("IEL3", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
402 }
69efe7cb 403
69efe7cb 404 // DEFINE END CONES FOR SPD
405
406 pcits[0] = 0.;
407 pcits[1] = 360.;
408 pcits[2] = 2.;
409 pcits[3] = 32.;
410 pcits[4] = (rl[0]+rl[1])/2.;
411 pcits[5] = (rl[0]+rl[1])/2.+2.; // check thickness !!
412 pcits[6] = 39.4;
413 pcits[7] = 10.065;
414 pcits[8] = 10.065+2.; // check thickness !!
d12d92a5 415 gMC->Gsvolu("ICO1", "PCON", idtmed[209], pcits, 9);
69efe7cb 416 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
c6e3abc5 417 gMC->Gspos("ICO1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
418 gMC->Gspos("ICO1", 2, "ITSD", 0., 0., 0., idrotm[200], "ONLY");
69efe7cb 419
420
421 // DEFINE END CONES FOR SDD
422
423 pcits[0] = 0.;
424 pcits[1] = 360.;
425 pcits[2] = 2.;
426 pcits[3] = 39.4;
427 pcits[4] = 10.065;
428 pcits[5] = 10.065+3.0; // check thickness !!
429 pcits[6] = 57.4;
430 pcits[7] = 28.;
431 pcits[8] = 28.+3.0; // check thickness !!
d12d92a5 432 gMC->Gsvolu("ICO2", "PCON", idtmed[238], pcits, 9);
c6e3abc5 433 gMC->Gspos("ICO2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
434 gMC->Gspos("ICO2", 2, "ITSD", 0., 0., 0., idrotm[200], "ONLY");
69efe7cb 435
436
437 // DEFINE END CONES FOR SSD
438
439 pcits[0] = 0.;
440 pcits[1] = 360.;
441 pcits[2] = 2.;
442 pcits[3] = 57.4;
443 pcits[4] = 28.0;
444 pcits[5] = 28.0+4.0; // check thickness !!
445 pcits[6] = 74.0;
446 pcits[7] = 47.;
447 pcits[8] = 47.+4.0; // check thickness !!
d12d92a5 448 gMC->Gsvolu("ICO3", "PCON", idtmed[264], pcits, 9);
c6e3abc5 449 gMC->Gspos("ICO3", 1, "ITSD", 0., 0., 0., 0, "ONLY");
450 gMC->Gspos("ICO3", 2, "ITSD", 0., 0., 0., idrotm[200], "ONLY");
69efe7cb 451
452
453 // SERVICES
454
455
e6892b92 456 // --- Define cables at the end of the ITS cones - copper part
69efe7cb 457
458 dgh[0] = 45.;
e6892b92 459 dgh[1] = 45.+1.0;
e8031268 460 dgh[2] = 9.5;
e6892b92 461
462 gMC->Gsvolu("ICCU", "TUBE", idtmed[279], dgh, 3);
e8031268 463 gMC->Gspos("ICCU", 1, "ITSV", 0., 0., 86.7, 0, "ONLY");
464 gMC->Gspos("ICCU", 2, "ITSV", 0., 0., -86.7, idrotm[200], "ONLY");
e6892b92 465
466 // --- Define cables at the end of the ITS cones - carbon part
467
468 dgh[0] = 45.+1.0;
469 dgh[1] = 45.+1.0+1.5;
e8031268 470 dgh[2] = 9.5;
69efe7cb 471
e6892b92 472 gMC->Gsvolu("ICCC", "TUBE", idtmed[274], dgh, 3);
e8031268 473 gMC->Gspos("ICCC", 1, "ITSV", 0., 0., 86.7, 0, "ONLY");
474 gMC->Gspos("ICCC", 2, "ITSV", 0., 0., -86.7, idrotm[200], "ONLY");
69efe7cb 475
476 // --- Define patch panels at the end of the ITS cones
477
478 dgh[0] = 45.;
479 dgh[1] = 56.;
480 dgh[2] = 2.25;
481
e6892b92 482 gMC->Gsvolu("IPAN", "TUBE", idtmed[285], dgh, 3);
c6e3abc5 483 gMC->Gspos("IPAN", 1, "ITSV", 0., 0., 98.45, 0, "ONLY");
484 gMC->Gspos("IPAN", 2, "ITSV", 0., 0., -98.45, idrotm[200], "ONLY");
69efe7cb 485
e6892b92 486 // --- Define cables/cooling below the TPC - copper part
69efe7cb 487
488 dgh[0] = 0.;
489 dgh[1] = 360.;
490 dgh[2] = 2.;
491 dgh[3] = 100.7;
492 dgh[4] = 45.2;
e6892b92 493 dgh[5] = 45.2+1.0;
69efe7cb 494 dgh[6] = xltpc;
495 dgh[7] = 61.8;
e6892b92 496 dgh[8] = 61.8+1.0;
497 gMC->Gsvolu("ICU1", "PCON", idtmed[279], dgh, 9);
498 gMC->Gspos("ICU1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
499 gMC->Gspos("ICU1", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
500
501 // --- Define cables/cooling below the TPC - carbon part
502
503 dgh[0] = 0.;
504 dgh[1] = 360.;
505 dgh[2] = 2.;
506 dgh[3] = 100.7;
507 dgh[4] = 45.2+1.0;
508 dgh[5] = 45.2+1.0+1.5;
509 dgh[6] = xltpc;
510 dgh[7] = 61.8+1.0;
511 dgh[8] = 61.8+1.0+1.5;
512 gMC->Gsvolu("ICC1", "PCON", idtmed[274], dgh, 9);
c6e3abc5 513 gMC->Gspos("ICC1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
e6892b92 514 gMC->Gspos("ICC1", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
515
516
517 // --- Define cables/cooling behind the TPC - copper part
518
519 dgh[0] = 0.;
520 dgh[1] = 360.;
521 dgh[2] = 2.;
522 dgh[3] = xltpc+1.5;
523 dgh[4] = 62.5;
524 dgh[5] = 74.5;
525 dgh[6] = xltpc+1.5+1.0;
526 dgh[7] = 62.5;
527 dgh[8] = 74.5;
528 gMC->Gsvolu("ICU2", "PCON", idtmed[279], dgh, 9);
529 gMC->Gspos("ICU2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
530 gMC->Gspos("ICU2", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
69efe7cb 531
e6892b92 532 // --- Define cables/cooling behind the TPC - carbon part
69efe7cb 533
534 dgh[0] = 0.;
535 dgh[1] = 360.;
536 dgh[2] = 2.;
537 dgh[3] = xltpc;
538 dgh[4] = 62.5;
539 dgh[5] = 74.5;
e6892b92 540 dgh[6] = xltpc+1.5;
69efe7cb 541 dgh[7] = 62.5;
542 dgh[8] = 74.5;
e6892b92 543 gMC->Gsvolu("ICC2", "PCON", idtmed[274], dgh, 9);
c6e3abc5 544 gMC->Gspos("ICC2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
e6892b92 545 gMC->Gspos("ICC2", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
69efe7cb 546
d12d92a5 547 // --- Define hook to the TPC on other side w.r.t. the absorber
69efe7cb 548
549 dgh[0] = 74.5;
550 dgh[1] = 79.5;
551 dgh[2] = 2.5;
d12d92a5 552 gMC->Gsvolu("IHOK", "TUBE", idtmed[284], dgh, 3);
c6e3abc5 553 gMC->Gspos("IHOK", 1, "ITSV", 0., 0., -xltpc-dgh[2], 0, "ONLY");
69efe7cb 554
555
556 // --- Outputs the geometry tree in the EUCLID/CAD format
557
558 if (fEuclidOut) {
559 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
560 }
561}
562//_____________________________________________________________________________
563void AliITSvPPRcoarsesymm::CreateMaterials(){
564////////////////////////////////////////////////////////////////////////
565 //
566 // Create ITS materials
567 // This function defines the default materials used in the Geant
568 // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
569 // AliITSvPPRcoarsesymm, AliITSvPPRcoarseasymm.
570 // In general it is automatically replaced by
571 // the CreatMaterials routine defined in AliITSv?. Should the function
572 // CreateMaterials not exist for the geometry version you are using this
573 // one is used. See the definition found in AliITSv5 or the other routine
574 // for a complete definition.
575 //
576 // Water H2O
577 Float_t awat[2] = { 1.00794,15.9994 };
578 Float_t zwat[2] = { 1.,8. };
579 Float_t wwat[2] = { 2.,1. };
580 Float_t denswat = 1.;
581 // Freon
582 Float_t afre[2] = { 12.011,18.9984032 };
583 Float_t zfre[2] = { 6.,9. };
584 Float_t wfre[2] = { 5.,12. };
585 Float_t densfre = 1.5;
586 // Ceramics
587 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
588 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
589 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
590 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
591 Float_t denscer = 3.6;
592 //
593 // 60% SiO2 , 40% G10FR4
594 // PC board
595 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
596 Float_t zpcb[3] = { 14.,8.,8.875 };
597 Float_t wpcb[3] = { .28,.32,.4 };
598 Float_t denspcb = 1.8;
599 // POLYETHYL
600 Float_t apoly[2] = { 12.01,1. };
601 Float_t zpoly[2] = { 6.,1. };
602 Float_t wpoly[2] = { .33,.67 };
d12d92a5 603 // old SERVICES
69efe7cb 604 Float_t zserv[4] = { 1.,6.,26.,29. };
605 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
606 Float_t wserv[4] = { .014,.086,.42,.48 };
d12d92a5 607 // Stainless steel
608 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
609 Float_t zsteel[4] = { 26.,24.,28.,14. };
610 Float_t wsteel[4] = { .715,.18,.1,.005 };
611
69efe7cb 612
613 Int_t isxfld = gAlice->Field()->Integ();
614 Float_t sxmgmx = gAlice->Field()->Max();
615
616
617 // --- Define the various materials for GEANT ---
618
619 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
620
621 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
622 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
623 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
624 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
625 // v. dens
626 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
627 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
628 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
629 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
630 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
d12d92a5 631 AliMaterial(9, "SPD End ladder$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
632 AliMaterial(10, "SPD cone$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
69efe7cb 633 // **
d12d92a5 634 AliMedium(0, "SPD Si$", 0, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
635 AliMedium(1, "SPD Si chip$", 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);
643 AliMedium(9, "SPD End ladder",9, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
644 AliMedium(10, "SPD cone$", 10, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
69efe7cb 645
646 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
647
648 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
649 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
650 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
651 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
652 // v. dens
653 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
654 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
655 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
656 // After a call with ratios by number (negative number of elements),
657 // the ratio array is changed to the ratio by weight, so all successive
658 // calls with the same array must specify the number of elements as
659 // positive
660 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
661 // After a call with ratios by number (negative number of elements),
662 // the ratio array is changed to the ratio by weight, so all successive
663 // calls with the same array must specify the number of elements as
664 // positive
665 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
666 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
667 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
668 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
669 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
d12d92a5 670 AliMaterial(38, "SDD End ladder$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
671 AliMaterial(39, "SDD cone$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
69efe7cb 672 // **
673 // check A and Z
d12d92a5 674 AliMedium(25, "SDD Si$", 25, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
69efe7cb 675 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
676 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
677 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
678 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
679 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
680 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
681 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
682 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
683 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
684 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
685 AliMedium(36, "SDD Ceramics$",36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
686 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
d12d92a5 687 AliMedium(38, "SDD End ladder",38, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
688 AliMedium(39, "SDD cone$", 39, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
69efe7cb 689
690 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
691
692 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
693 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
694 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
695 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
696 // v. dens
697 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
698 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
699 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
700 // After a call with ratios by number (negative number of elements),
701 // the ratio array is changed to the ratio by weight, so all successive
702 // calls with the same array must specify the number of elements as
703 // positive
704 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
705 // After a call with ratios by number (negative number of elements),
706 // the ratio array is changed to the ratio by weight, so all successive
707 // calls with the same array must specify the number of elements as
708 // positive
709 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
710 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
711 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
712 // After a call with ratios by number (negative number of elements),
713 // the ratio array is changed to the ratio by weight, so all successive
714 // calls with the same array must specify the number of elements as
715 // positive
716 AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
717 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
718 // check A and Z
d12d92a5 719 AliMaterial(63, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
720 AliMaterial(64, "SSD End ladder$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
721 AliMaterial(65, "SSD cone$",28.0855, 14., 2.33, 9.36, 999); // check !!!!
69efe7cb 722 // **
d12d92a5 723 AliMedium(50, "SSD Si$", 50, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
69efe7cb 724 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
725 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
726 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
727 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
728 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
729 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
730 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
731 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
732 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
733 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
734 AliMedium(61, "SSD Ceramics$",61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
735 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
736 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
d12d92a5 737 AliMedium(64, "SPD End ladder",64, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
738 AliMedium(65, "SPD cone$", 65, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
69efe7cb 739
740 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
741
742 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
743 // verify density
744 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
745 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
746 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
747 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
e6892b92 748 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
69efe7cb 749 // After a call with ratios by number (negative number of elements),
750 // the ratio array is changed to the ratio by weight, so all successive
751 // calls with the same array must specify the number of elements as
752 // positive
753 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
e6892b92 754 //AliMaterial(82, "GEN Cables$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
755 //AliMaterial(83, "GEN patch pan$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
756 //AliMaterial(84, "GEN serv$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
d12d92a5 757 AliMixture(85, "GEN Inox$", asteel, zsteel, 7.88, 4, wsteel);
e6892b92 758 AliMaterial(86, "GEN Al$", 26.981539, 13., 2.6989, 8.9, 999);
69efe7cb 759 // **
760 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
761 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
762 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
763 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
764 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
765 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
766 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
e6892b92 767 //AliMedium(82,"GEN Cables$", 82, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
768 //AliMedium(83,"GEN patch pan$",83, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
769 //AliMedium(84,"GEN serv$", 84, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
d12d92a5 770 AliMedium(85,"GEN Inox$", 85, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
e6892b92 771 AliMedium(86, "GEN Al$", 86, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
772
69efe7cb 773}
774//_____________________________________________________________________________
775void AliITSvPPRcoarsesymm::Init(){
776////////////////////////////////////////////////////////////////////////
777// Initialise the ITS after it has been created.
778////////////////////////////////////////////////////////////////////////
779
780 //
781 AliITS::Init();
782 fMajorVersion = 1;
783 fMinorVersion = 0;
784}
785
786//_____________________________________________________________________________
787void AliITSvPPRcoarsesymm::DrawModule(){
788////////////////////////////////////////////////////////////////////////
789// Draw a shaded view of the FMD version 6.
790////////////////////////////////////////////////////////////////////////
791
792 // Set everything unseen
793 gMC->Gsatt("*", "seen", -1);
794 //
795 // Set ALIC mother visible
796 gMC->Gsatt("ALIC","SEEN",0);
797 //
798 // Set the volumes visible
799 gMC->Gsatt("ITSD","SEEN",0);
800 gMC->Gsatt("ITS1","SEEN",1);
801 gMC->Gsatt("ITS2","SEEN",1);
802 gMC->Gsatt("ITS3","SEEN",1);
803 gMC->Gsatt("ITS4","SEEN",1);
804 gMC->Gsatt("ITS5","SEEN",1);
805 gMC->Gsatt("ITS6","SEEN",1);
806
807 gMC->Gsatt("IPCB","SEEN",1);
808 gMC->Gsatt("ICO2","SEEN",1);
809 gMC->Gsatt("ICER","SEEN",0);
810 gMC->Gsatt("ISI2","SEEN",0);
811 gMC->Gsatt("IPLA","SEEN",0);
812 gMC->Gsatt("ICO3","SEEN",0);
813 gMC->Gsatt("IEPX","SEEN",0);
814 gMC->Gsatt("ISI3","SEEN",1);
815 gMC->Gsatt("ISUP","SEEN",0);
816 gMC->Gsatt("ICHO","SEEN",0);
817 gMC->Gsatt("ICMO","SEEN",0);
818 gMC->Gsatt("ICMD","SEEN",0);
819 gMC->Gsatt("ICCO","SEEN",1);
820 gMC->Gsatt("ICCM","SEEN",0);
821 gMC->Gsatt("ITMD","SEEN",0);
822 gMC->Gsatt("ITTT","SEEN",1);
823
824 //
825 gMC->Gdopt("hide", "on");
826 gMC->Gdopt("shad", "on");
827 gMC->Gsatt("*", "fill", 7);
828 gMC->SetClipBox(".");
829 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
830 gMC->DefaultRange();
831 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
832 gMC->Gdhead(1111, "Inner Tracking System Version 1");
833 gMC->Gdman(17, 6, "MAN");
834}
835//_____________________________________________________________________________
836void AliITSvPPRcoarsesymm::StepManager(){
837////////////////////////////////////////////////////////////////////////
838// Called for every step in the ITS, then calls the AliITShit class
839// creator with the information to be recoreded about that hit.
840////////////////////////////////////////////////////////////////////////
c6e3abc5 841
842/*
69efe7cb 843 Int_t copy, id;
844 Float_t hits[8];
845 Int_t vol[4];
846 TLorentzVector position, momentum;
847// TClonesArray &lhits = *fHits;
848//
849// no hits for this coarse symmetric version.
850//
851
852 //
853 // Track status
854 vol[3] = 0;
855 if(gMC->IsTrackInside()) vol[3] += 1;
856 if(gMC->IsTrackEntering()) vol[3] += 2;
857 if(gMC->IsTrackExiting()) vol[3] += 4;
858 if(gMC->IsTrackOut()) vol[3] += 8;
859 if(gMC->IsTrackDisappeared()) vol[3] += 16;
860 if(gMC->IsTrackStop()) vol[3] += 32;
861 if(gMC->IsTrackAlive()) vol[3] += 64;
862 //
863 // Fill hit structure.
864 if( !(gMC->TrackCharge()) ) return;
865 //
866 // Only entering charged tracks
867 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
868 vol[0]=1;
869 id=gMC->CurrentVolOffID(1,copy);
870 vol[1]=copy;
871 id=gMC->CurrentVolOffID(2,copy);
872 vol[2]=copy;
873 } else if(id==fIdSens[1]) {
874 vol[0]=2;
875 id=gMC->CurrentVolOffID(1,copy);
876 vol[1]=copy;
877 id=gMC->CurrentVolOffID(2,copy);
878 vol[2]=copy;
879 } else if(id==fIdSens[2]) {
880 vol[0]=3;
881 vol[1]=copy;
882 id=gMC->CurrentVolOffID(1,copy);
883 vol[2]=copy;
884 } else if(id==fIdSens[3]) {
885 vol[0]=4;
886 vol[1]=copy;
887 id=gMC->CurrentVolOffID(1,copy);
888 vol[2]=copy;
889 } else if(id==fIdSens[4]) {
890 vol[0]=5;
891 vol[1]=copy;
892 id=gMC->CurrentVolOffID(1,copy);
893 vol[2]=copy;
894 } else if(id==fIdSens[5]) {
895 vol[0]=6;
896 vol[1]=copy;
897 id=gMC->CurrentVolOffID(1,copy);
898 vol[2]=copy;
899 } else return;
900 gMC->TrackPosition(position);
901 gMC->TrackMomentum(momentum);
902 hits[0]=position[0];
903 hits[1]=position[1];
904 hits[2]=position[2];
905 hits[3]=momentum[0];
906 hits[4]=momentum[1];
907 hits[5]=momentum[2];
908 hits[6]=gMC->Edep();
909 hits[7]=gMC->TrackTime();
910// new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
911//
912// no hits for this coarse symmetric version.
913//
c6e3abc5 914*/
69efe7cb 915}
916/*
917//____________________________________________________________________________
918void AliITSvPPRcoarsesymm::Streamer(TBuffer &R__b){
919////////////////////////////////////////////////////////////////////////
920// A dummy Streamer function for this class AliITSvPPRcoarsesymm. By default it
921// only streams the AliITS class as it is required. Since this class
922// dosen't contain any "real" data to be saved, it doesn't.
923////////////////////////////////////////////////////////////////////////
924
925 if (R__b.IsReading()) {
926 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
927 AliITS::Streamer(R__b);
928 } else {
929 R__b.WriteVersion(AliITSvPPRcoarsesymm::IsA());
930 AliITS::Streamer(R__b);
931 } // end if R__b.IsReading()
932}
933*/