1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // Inner Traking System version PPR coarse symmetric //
21 // This class contains the base procedures for the Inner Tracking System //
23 // Authors: R. Barbera
27 // NOTE: THIS IS THE COARSE SYMMETRIC PPR geometry of the ITS.
29 // with the geometry or module classes or any analysis classes. You are
30 // strongly encouraged to uses AliITSv5.
32 ///////////////////////////////////////////////////////////////////////////////
33 #include <Riostream.h>
36 #include <TObjArray.h>
40 #include <TVirtualMC.h>
41 #include <TGeometry.h>
46 #include "AliITShit.h"
47 #include "AliITSvPPRcoarsesymm.h"
51 ClassImp(AliITSvPPRcoarsesymm)
53 //_____________________________________________________________________________
54 AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm() {
55 ////////////////////////////////////////////////////////////////////////
56 // Standard default constructor for the ITS version 7.
57 ////////////////////////////////////////////////////////////////////////
65 //_____________________________________________________________________________
66 AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm(const char *name, const char *title) : AliITS(name, title){
67 ////////////////////////////////////////////////////////////////////////
68 // Standard constructor for the ITS version 7.
69 ////////////////////////////////////////////////////////////////////////
72 fIdName = new TString[fIdN];
79 fIdSens = new Int_t[fIdN];
80 for (Int_t i=0;i<fIdN;i++) fIdSens[i]=0;
84 //____________________________________________________________________________
85 AliITSvPPRcoarsesymm::AliITSvPPRcoarsesymm(const AliITSvPPRcoarsesymm &source){
86 ////////////////////////////////////////////////////////////////////////
87 // Copy Constructor for ITS version 7.
88 ////////////////////////////////////////////////////////////////////////
89 if(&source == this) return;
90 Warning("Copy Constructor","Not allowed to copy AliITSvPPRcoarsesymm");
93 //_____________________________________________________________________________
94 AliITSvPPRcoarsesymm& AliITSvPPRcoarsesymm::operator=(const AliITSvPPRcoarsesymm &source){
95 ////////////////////////////////////////////////////////////////////////
96 // Assignment operator for the ITS version 7.
97 ////////////////////////////////////////////////////////////////////////
98 if(&source == this) return *this;
99 Warning("= operator","Not allowed to copy AliITSvPPRcoarsesymm");
102 //_____________________________________________________________________________
103 AliITSvPPRcoarsesymm::~AliITSvPPRcoarsesymm() {
104 ////////////////////////////////////////////////////////////////////////
105 // Standard destructor for the ITS version 7.
106 ////////////////////////////////////////////////////////////////////////
109 //__________________________________________________________________________
110 void AliITSvPPRcoarsesymm::BuildGeometry(){
111 ////////////////////////////////////////////////////////////////////////
112 // Geometry builder for the ITS version 7.
113 ////////////////////////////////////////////////////////////////////////
115 const Int_t kColorITS=kYellow;
117 top = gAlice->GetGeometry()->GetNode("alice");
118 new TTUBE("S_layer1","Layer1 of ITS","void",3.8095,3.8095+1.03*9.36/100.,14.35);
120 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
121 node->SetLineColor(kColorITS);
124 new TTUBE("S_layer2","Layer2 of ITS","void",7.,7.+1.03*9.36/100.,14.35);
126 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
127 node->SetLineColor(kColorITS);
130 new TTUBE("S_layer3","Layer3 of ITS","void",15.,15.+0.94*9.36/100.,25.1);
132 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
133 node->SetLineColor(kColorITS);
136 new TTUBE("S_layer4","Layer4 of ITS","void",24.1,24.1+0.95*9.36/100.,32.1);
138 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
139 node->SetLineColor(kColorITS);
142 new TTUBE("S_layer5","Layer5 of ITS","void",38.5,38.5+0.91*9.36/100.,49.405);
144 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
145 node->SetLineColor(kColorITS);
148 new TTUBE("S_layer6","Layer6 of ITS","void",43.5765,43.5765+0.87*9.36/100.,55.27);
150 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
151 node->SetLineColor(kColorITS);
155 //_____________________________________________________________________________
156 void AliITSvPPRcoarsesymm::CreateGeometry(){
157 ////////////////////////////////////////////////////////////////////////
158 // This routine defines and Creates the geometry for version 7 of the ITS.
159 ////////////////////////////////////////////////////////////////////////
161 //INNER RADII OF THE SILICON LAYERS
162 Float_t rl[6] = { 3.8095,7.,15.,24.,38.5,43.5765 };
163 //THICKNESSES OF LAYERS (in % radiation length)
164 Float_t drl[6] = { 1.03,1.03,0.94,0.95,0.91,0.87 };
165 //HALF LENGTHS OF LAYERS
166 Float_t dzl[6] = { 14.35,14.35,25.1,32.1,49.405,55.27 };
167 //LENGTHS OF END-LADDER BOXES (ALL INCLUDED)
168 Float_t dzb[6] = { 12.4,12.4,13.5,15.,7.5,7.5 };
169 //THICKNESSES OF END-LADDER BOXES (ALL INCLUDED)
170 Float_t drb[6] = { rl[1]-rl[0],0.2,5.,5.,4.,4. };
173 Float_t dits[3], rlim, zmax;
175 Float_t pcits[100], ztpc;
176 Int_t idrotm[1999], i;
179 Int_t rails = 1; // flag for rails (1 --> rails in; 0 --> rails out)
180 Int_t suppmat = 0; // flag to change the material of the services
181 // supports (=0 copper, =1 aluminum, =2 carbon)
184 if(rails != 0 && rails != 1) {
185 cout << "ITS - WARNING: the switch for rails is not set neither to 0 (rails out) nor to 1 (rails in)."
186 " The default value of 1 (rails in) will be used." << endl;
190 cout << "ITS: Rails are out." << endl;
192 cout << "ITS: Rails are in." << endl;
195 suppmat = GetSupportMaterial();
197 if (suppmat != 0 && suppmat != 1 && suppmat != 2) {
198 cout << "ITS - WARNING: the flag for the material of services supports is not set neither to 0 (copper) nor to 1 (aluminum) nor to 2 (carbon)."
199 " The default value of 0 (copper) will be used." << endl;
203 cout << "ITS: The material of the services supports is copper." << endl;
204 } else if (suppmat == 1){
205 cout << "ITS: The material of the services supports is aluminum." << endl;
207 cout << "ITS: The material of the services supports is carbon." << endl;
211 Int_t *idtmed = fIdtmed->GetArray()-199;
213 // CONVERT INTO CM (RL(SI)=9.36 CM)
214 for (i = 0; i < 6; ++i) {
215 drl[i] = drl[i] / 100. * 9.36;
218 // FIELD CAGE HALF LENGTH
224 // --- Define ghost volume containing the whole ITS (including services)
225 // and fill it with air
230 dgh[3] = -ztpc-5.-0.1;
275 dgh[48] = ztpc+4.+0.1;
278 gMC->Gsvolu("ITSV", "PCON", idtmed[275], dgh, 51);
280 // --- Place the ghost volume in its mother volume (ALIC) and make it
283 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
284 //gMC->Gsatt("ITSV", "SEEN", 0);
287 // --- Define ghost volume containing the six layers and fill it with air
316 gMC->Gsvolu("ITSD", "PCON", idtmed[275], dgh, 27);
318 // --- Place the ghost volume in its mother volume (ALIC) and make it
321 gMC->Gspos("ITSD", 1, "ITSV", 0., 0., 0., 0, "ONLY");
322 //gMC->Gsatt("ITSD", "SEEN", 0);
324 // ITS LAYERS (SILICON)
327 dits[1] = rl[0] + drl[0];
329 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
330 gMC->Gspos("ITS1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
333 dits[1] = rl[1] + drl[1];
335 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
336 gMC->Gspos("ITS2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
339 dits[1] = rl[2] + drl[2];
341 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
342 gMC->Gspos("ITS3", 1, "ITSD", 0., 0., 0., 0, "ONLY");
345 dits[1] = rl[3] + drl[3];
347 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
348 gMC->Gspos("ITS4", 1, "ITSD", 0., 0., 0., 0, "ONLY");
351 dits[1] = rl[4] + drl[4];
353 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
354 gMC->Gspos("ITS5", 1, "ITSD", 0., 0., 0., 0, "ONLY");
357 dits[1] = rl[5] + drl[5];
359 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
360 gMC->Gspos("ITS6", 1, "ITSD", 0., 0., 0., 0, "ONLY");
362 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SPD
364 gMC->Gsvolu("IEL1", "TUBE", idtmed[208], dits, 0);
365 for (i = 0; i < 2; i++) {
367 dits[1] = dits[0] + drb[i];
368 dits[2] = dzb[i] / 2.;
369 zpos = dzl[i] + dits[2];
370 gMC->Gsposp("IEL1", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
371 gMC->Gsposp("IEL1", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
374 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SDD
376 gMC->Gsvolu("IEL2", "TUBE", idtmed[237], dits, 0);
377 for (i = 2; i < 3; i++) {
379 dits[1] = dits[0] + drb[i];
380 dits[2] = dzb[i] / 2.;
381 zpos = dzl[i] + dits[2];
382 gMC->Gsposp("IEL2", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
383 gMC->Gsposp("IEL2", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
385 for (i = 3; i < 4; i++) {
387 dits[1] = dits[0] + drb[i];
388 dits[2] = dzb[i] / 2.;
389 zpos = dzl[i] + dits[2];
390 gMC->Gsposp("IEL2", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
391 gMC->Gsposp("IEL2", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
395 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SSD
397 gMC->Gsvolu("IEL3", "TUBE", idtmed[263], dits, 0);
398 for (i = 4; i < 5; i++) {
400 dits[1] = dits[0] + drb[i];
401 dits[2] = dzb[i] / 2.;
402 zpos = dzl[i] + dits[2];
403 gMC->Gsposp("IEL3", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
404 gMC->Gsposp("IEL3", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
406 for (i = 5; i < 6; i++) {
407 dits[0] = rl[i]+0.4235;
408 dits[1] = dits[0] + drb[i];
409 dits[2] = dzb[i] / 2.;
410 zpos = dzl[i] + dits[2];
411 gMC->Gsposp("IEL3", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
412 gMC->Gsposp("IEL3", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
415 // DEFINE THERMAL SCREEN FOR SPD
420 gMC->Gsvolu("ICY1", "TUBE", idtmed[274], pcits, 3);
421 gMC->Gspos("ICY1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
423 // DEFINE END CONES FOR SDD
425 pcits[0] = (59.-42.5)/2.;
430 gMC->Gsvolu("ICO1", "CONE", idtmed[238], pcits, 5);
431 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
432 gMC->Gspos("ICO1", 1, "ITSD", 0., 0., 42.5+pcits[0], 0, "ONLY");
433 gMC->Gspos("ICO1", 2, "ITSD", 0., 0., -(42.5+pcits[0]), idrotm[200], "ONLY");
435 // DEFINE CYLINDER BETWEEN SDD AND SSD
437 pcits[0] = (59.5-0.13/2.)/2.;
438 pcits[1] = (59.5+0.13/2.)/2.;
440 gMC->Gsvolu("ICY2", "TUBE", idtmed[274], pcits, 3);
441 gMC->Gspos("ICY2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
443 // DEFINE END CONES FOR SSD
445 pcits[0] = (74.-59.)/2.;
450 gMC->Gsvolu("ICO2", "CONE", idtmed[264], pcits, 5);
451 gMC->Gspos("ICO2", 1, "ITSD", 0., 0., 59.+pcits[0], 0, "ONLY");
452 gMC->Gspos("ICO2", 2, "ITSD", 0., 0., -(59.+pcits[0]), idrotm[200], "ONLY");
455 // **************************** SERVICES *********************************
458 // --- DEFINE CABLES AT THE END OF THE ITS CONES - COPPER PART
468 gMC->Gsvolu("I1CU", "TUBS", idtmed[279], dgh, 5); // copper
469 } else if (suppmat == 1) {
470 gMC->Gsvolu("I1CU", "TUBS", idtmed[285], dgh, 5); // aluminum
472 gMC->Gsvolu("I1CU", "TUBS", idtmed[274], dgh, 5); // carbon
474 gMC->Gspos("I1CU", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
475 gMC->Gspos("I1CU", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
477 // --- DEFINE CABLES AT THE END OF THE ITS CONES - COPPER PART
487 gMC->Gsvolu("I2CU", "TUBS", idtmed[279], dgh, 5); // copper
488 } else if (suppmat == 1) {
489 gMC->Gsvolu("I2CU", "TUBS", idtmed[285], dgh, 5); // aluminum
491 gMC->Gsvolu("I2CU", "TUBS", idtmed[274], dgh, 5); // carbon
493 gMC->Gspos("I2CU", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
494 gMC->Gspos("I2CU", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
497 // --- DEFINE CABLES AT THE END OF THE ITS CONES - CARBON PART
501 dgh[1] = 46.+1.0+1.5;
506 gMC->Gsvolu("I1CC", "TUBS", idtmed[274], dgh, 5);
507 gMC->Gspos("I1CC", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
508 gMC->Gspos("I1CC", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
510 // --- DEFINE CABLES AT THE END OF THE ITS CONES - CARBON PART
514 dgh[1] = 46.+1.0+1.5;
519 gMC->Gsvolu("I2CC", "TUBS", idtmed[274], dgh, 5);
520 gMC->Gspos("I2CC", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
521 gMC->Gspos("I2CC", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
523 // --- DEFINE PATCH PANELS AT THE END OF THE ITS CONES
532 gMC->Gsvolu("IPA1", "TUBS", idtmed[285], dgh, 5);
533 gMC->Gspos("IPA1", 1, "ITSV", 0., 0., 95.25, 0, "ONLY");
534 gMC->Gspos("IPA1", 2, "ITSV", 0., 0., -95.25, idrotm[200], "ONLY");
537 // --- DEFINE PATCH PANELS AT THE END OF THE ITS CONES
546 gMC->Gsvolu("IPA2", "TUBS", idtmed[285], dgh, 5);
547 gMC->Gspos("IPA2", 1, "ITSV", 0., 0., 95.25, 0, "ONLY");
548 gMC->Gspos("IPA2", 2, "ITSV", 0., 0., -95.25, idrotm[200], "ONLY");
550 // --- DEFINE CABLES/COOLING BELOW THE TPC - COPPER PART - UPPER PART
552 dgh[0] = (ztpc-97.5)/2.;
559 gMC->Gsvolu("ICU1", "CONS", idtmed[279], dgh, 7);
560 gMC->Gspos("ICU1", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
561 gMC->Gspos("ICU1", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
563 // --- DEFINE CABLES/COOLING BELOW THE TPC - COPPER PART - LOWER PART
565 dgh[0] = (ztpc-97.5)/2.;
572 gMC->Gsvolu("ICU2", "CONS", idtmed[279], dgh, 7);
573 gMC->Gspos("ICU2", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
574 gMC->Gspos("ICU2", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
576 // --- DEFINE CABLES/COOLING BELOW THE TPC - CARBON PART - UPPER PART
578 dgh[0] = (ztpc-97.5)/2.;
580 dgh[2] = 46.2+1.0+1.5;
582 dgh[4] = 62.3+1.0+1.5;
585 gMC->Gsvolu("ICC1", "CONS", idtmed[274], dgh, 7);
586 gMC->Gspos("ICC1", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
587 gMC->Gspos("ICC1", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
589 // --- DEFINE CABLES/COOLING BELOW THE TPC - CARBON PART - LOWER PART
591 dgh[0] = (ztpc-97.5)/2.;
593 dgh[2] = 46.2+1.0+1.5;
595 dgh[4] = 62.3+1.0+1.5;
598 gMC->Gsvolu("ICC2", "CONS", idtmed[274], dgh, 7);
599 gMC->Gspos("ICC2", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
600 gMC->Gspos("ICC2", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
602 // --- DEFINE CABLES/COOLING BEHIND THE TPC - COPPER PART - UPPER PART
609 gMC->Gsvolu("ICU3", "TUBS", idtmed[279], dgh, 5);
610 gMC->Gspos("ICU3", 1, "ITSV", 0., 0., ztpc+1.5+dgh[2], 0, "ONLY");
611 gMC->Gspos("ICU3", 2, "ITSV", 0., 0., -(ztpc+1.5+dgh[2]), idrotm[200], "ONLY");
613 // --- DEFINE CABLES/COOLING BEHIND THE TPC - COPPER PART - LOWER PART
620 gMC->Gsvolu("ICU4", "TUBS", idtmed[279], dgh, 5);
621 gMC->Gspos("ICU4", 1, "ITSV", 0., 0., ztpc+1.5+dgh[2], 0, "ONLY");
622 gMC->Gspos("ICU4", 2, "ITSV", 0., 0., -(ztpc+1.5+dgh[2]), idrotm[200], "ONLY");
624 // --- DEFINE CABLES/COOLING BEHIND THE TPC - CARBON PART - UPPER PART
631 gMC->Gsvolu("ICC3", "TUBS", idtmed[274], dgh, 5);
632 gMC->Gspos("ICC3", 1, "ITSV", 0., 0., ztpc+dgh[2], 0, "ONLY");
633 gMC->Gspos("ICC3", 2, "ITSV", 0., 0., -(ztpc+dgh[2]), idrotm[200], "ONLY");
635 // --- DEFINE CABLES/COOLING BEHIND THE TPC - CARBON PART - LOWER PART
642 gMC->Gsvolu("ICC4", "TUBS", idtmed[274], dgh, 5);
643 gMC->Gspos("ICC4", 1, "ITSV", 0., 0., ztpc+dgh[2], 0, "ONLY");
644 gMC->Gspos("ICC4", 2, "ITSV", 0., 0., -(ztpc+dgh[2]), idrotm[200], "ONLY");
646 // --- DEFINE HOOK TO THE TPC ON OTHER SIDE W.R.T. THE ABSORBER - UPPER PART
653 gMC->Gsvolu("IHK1", "TUBS", idtmed[284], dgh, 5);
654 gMC->Gspos("IHK1", 1, "ITSV", 0., 0., -ztpc-dgh[2], 0, "ONLY");
656 // --- DEFINE HOOK TO THE TPC ON OTHER SIDE W.R.T. THE ABSORBER - LOWER PART
663 gMC->Gsvolu("IHK2", "TUBS", idtmed[284], dgh, 5);
664 gMC->Gspos("IHK2", 1, "ITSV", 0., 0., -ztpc-dgh[2], 0, "ONLY");
666 // --- DEFINE RAILS BETWEEN THE ITS AND THE TPC
673 gMC->Gsvolu("IRA1", "BOX ", idtmed[239], dgh, 3);
674 gMC->Gspos("IRA1", 1, "ITSV", 53.5, 0., -69.5, 0, "ONLY");
675 gMC->Gsvolu("IRA2", "BOX ", idtmed[239], dgh, 3);
676 gMC->Gspos("IRA2", 1, "ITSV", -53.5, 0., -69.5, 0, "ONLY");
678 dgh[0] = 2.-0.5; // 0.5 was determined in such a way that the aluminum area is 20.9 cm^2
679 dgh[1] = 8.-0.5; // 0.5 was determined in such a way that the aluminum area is 20.9 cm^2
681 gMC->Gsvolu("IRA3", "BOX ", idtmed[275], dgh, 3);
682 gMC->Gspos("IRA3", 1, "IRA1", 0., 0., 0., 0, "ONLY");
683 gMC->Gsvolu("IRA4", "BOX ", idtmed[275], dgh, 3);
684 gMC->Gspos("IRA4", 1, "IRA2", 0., 0., 0., 0, "ONLY");
688 // --- DEFINE CYLINDERS HOLDING RAILS BETWEEN THE ITS AND THE TPC
693 gMC->Gsvolu("ICYL", "TUBE", idtmed[285], dgh, 3);
694 gMC->Gspos("ICYL", 1, "ALIC", 0., 0., 74.1, 0, "ONLY");
695 gMC->Gspos("ICYL", 2, "ALIC", 0., 0., -74.1, idrotm[200], "ONLY");
697 // --- DEFINE SUPPORTS FOR RAILS ATTACHED TO THE CYLINDERS
701 dgh[2] = 5.; // 5. comes from the fact that the volume has to be 567.6/2 cm^3
702 gMC->Gsvolu("ISR1", "TUBE", idtmed[286], dgh, 3);
703 gMC->Gspos("ISR1", 1, "ITSV", 53.4292, 10.7053, 79.75, 0, "ONLY");
704 gMC->Gspos("ISR1", 2, "ITSV", 53.4292, -10.7053, 79.75, 0, "ONLY");
705 gMC->Gspos("ISR1", 3, "ITSV", -53.4292, 10.7053, 79.75, 0, "ONLY");
706 gMC->Gspos("ISR1", 4, "ITSV", -53.4292, -10.7053, 79.75, 0, "ONLY");
707 gMC->Gspos("ISR1", 5, "ITSV", 53.4292, 10.7053, -79.75, 0, "ONLY");
708 gMC->Gspos("ISR1", 6, "ITSV", 53.4292, -10.7053, -79.75, 0, "ONLY");
709 gMC->Gspos("ISR1", 7, "ITSV", -53.4292, 10.7053, -79.75, 0, "ONLY");
710 gMC->Gspos("ISR1", 8, "ITSV", -53.4292, -10.7053, -79.75, 0, "ONLY");
712 // --- DEFINE SUPPORTS FOR RAILS ATTACHED TO THE ABSORBER
717 gMC->Gsvolu("ISR2", "BOX ", idtmed[285], dgh, 3);
718 gMC->Gspos("ISR2", 1, "ALIC", 53.5, 0., 125.5, 0, "ONLY");
719 gMC->Gsvolu("ISR3", "BOX ", idtmed[285], dgh, 3);
720 gMC->Gspos("ISR3", 1, "ALIC", -53.5, 0., 125.5, 0, "ONLY");
725 gMC->Gsvolu("ISR4", "BOX ", idtmed[275], dgh, 3);
726 gMC->Gspos("ISR4", 1, "ISR2", 0., 0., 0., 0, "ONLY");
727 gMC->Gsvolu("ISR5", "BOX ", idtmed[275], dgh, 3);
728 gMC->Gspos("ISR5", 1, "ISR3", 0., 0., 0., 0, "ONLY");
730 // --- DEFINE SUPPORTS TO ATTACH THE ITS TO THE TPC
735 gMC->Gsvolu("ISR6", "TUBE", idtmed[285], dgh, 3);
736 gMC->Gspos("ISR6", 1, "ALIC", 0., 54., 77., 0, "ONLY");
737 gMC->Gspos("ISR6", 2, "ALIC", 0., 54., -77., 0, "ONLY");
738 gMC->Gspos("ISR6", 3, "ALIC", 0., -54., -77., 0, "ONLY");
740 // --- Outputs the geometry tree in the EUCLID/CAD format
743 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
746 //_____________________________________________________________________________
747 void AliITSvPPRcoarsesymm::CreateMaterials(){
748 ////////////////////////////////////////////////////////////////////////
750 // Create ITS materials
751 // This function defines the default materials used in the Geant
752 // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
753 // AliITSvPPRcoarseasymm.
754 // In general it is automatically replaced by
755 // the CreatMaterials routine defined in AliITSv?. Should the function
756 // CreateMaterials not exist for the geometry version you are using this
757 // one is used. See the definition found in AliITSv5 or the other routine
758 // for a complete definition.
761 Float_t awat[2] = { 1.00794,15.9994 };
762 Float_t zwat[2] = { 1.,8. };
763 Float_t wwat[2] = { 2.,1. };
764 Float_t denswat = 1.;
766 Float_t afre[2] = { 12.011,18.9984032 };
767 Float_t zfre[2] = { 6.,9. };
768 Float_t wfre[2] = { 5.,12. };
769 Float_t densfre = 1.5;
771 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
772 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
773 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
774 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
775 Float_t denscer = 3.6;
777 // 60% SiO2 , 40% G10FR4
779 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
780 Float_t zpcb[3] = { 14.,8.,8.875 };
781 Float_t wpcb[3] = { .28,.32,.4 };
782 Float_t denspcb = 1.8;
784 Float_t apoly[2] = { 12.01,1. };
785 Float_t zpoly[2] = { 6.,1. };
786 Float_t wpoly[2] = { .33,.67 };
788 Float_t zserv[4] = { 1.,6.,26.,29. };
789 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
790 Float_t wserv[4] = { .014,.086,.42,.48 };
792 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
793 Float_t zsteel[4] = { 26.,24.,28.,14. };
794 Float_t wsteel[4] = { .715,.18,.1,.005 };
797 Int_t isxfld = gAlice->Field()->Integ();
798 Float_t sxmgmx = gAlice->Field()->Max();
801 // --- Define the various materials for GEANT ---
803 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
805 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999.);
806 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
807 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
808 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999.);
810 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999.);
811 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
812 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
813 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
814 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
815 AliMaterial(9, "SPD End ladder$", 55.845, 26., 7.87/10., 1.76*10., 999.);
816 //AliMaterial(9, "SPD End ladder$", 55.845, 26., -7.87/10., -1.76*10., 999.);
817 AliMaterial(10, "SPD cone$",28.0855, 14., 2.33, 9.36, 999.); // check !!!!
819 AliMedium(0, "SPD Si$", 0, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
820 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
821 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
822 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
823 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
824 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
825 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
826 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
827 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
828 AliMedium(9, "SPD End ladder$",9, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
829 AliMedium(10, "SPD cone$", 10, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
831 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
833 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999.);
834 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
835 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
836 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999.);
838 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999.);
839 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
840 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
841 // After a call with ratios by number (negative number of elements),
842 // the ratio array is changed to the ratio by weight, so all successive
843 // calls with the same array must specify the number of elements as
845 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
846 // After a call with ratios by number (negative number of elements),
847 // the ratio array is changed to the ratio by weight, so all successive
848 // calls with the same array must specify the number of elements as
850 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
851 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
852 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999.);
853 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
854 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
855 AliMaterial(38, "SDD End ladder$", 69.9298, 29.8246, 0.3824, 36.5103, 999.);
856 AliMaterial(39, "SDD cone$",63.546, 29., 1.15, 1.265, 999.);
857 AliMaterial(40, "SDD M55J$",12.3565, 6.4561, 1.8097, 22.9570, 999.);
858 //AliMaterial(38, "SDD End ladder$", 69.9298, 29.8246, -0.3824, -36.5103, 999.);
859 //AliMaterial(39, "SDD cone$",63.546, 29., -1.15, -1.265, 999.);
863 AliMedium(25, "SDD Si$", 25, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
864 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
865 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
866 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
867 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
868 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
869 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
870 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
871 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
872 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
873 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
874 AliMedium(36, "SDD Ceramics$", 36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
875 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
876 AliMedium(38, "SDD End ladder$",38, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
877 AliMedium(39, "SDD cone$", 39, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
878 AliMedium(40, "SDD M55J$", 40, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
879 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
881 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
882 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
883 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
884 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
886 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999.);
887 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
888 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
889 // After a call with ratios by number (negative number of elements),
890 // the ratio array is changed to the ratio by weight, so all successive
891 // calls with the same array must specify the number of elements as
893 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
894 // After a call with ratios by number (negative number of elements),
895 // the ratio array is changed to the ratio by weight, so all successive
896 // calls with the same array must specify the number of elements as
898 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
899 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
900 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
901 // After a call with ratios by number (negative number of elements),
902 // the ratio array is changed to the ratio by weight, so all successive
903 // calls with the same array must specify the number of elements as
905 AliMixture(61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
906 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
908 AliMaterial(63, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
909 AliMaterial(64, "SSD End ladder$", 32.0988, 15.4021, 0.68, 35.3238, 999.);
910 AliMaterial(65, "SSD cone$",63.546, 29., 1.15, 1.265, 999.);
911 //AliMaterial(64, "SSD End ladder$", 32.0988, 15.4021, -0.68, -35.3238, 999.);
912 //AliMaterial(65, "SSD cone$",63.546, 29., -1.15, -1.265, 999.);
914 AliMedium(50, "SSD Si$", 50, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
915 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
916 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
917 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
918 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
919 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
920 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
921 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
922 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
923 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
924 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
925 AliMedium(61, "SSD Ceramics$", 61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
926 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
927 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
928 AliMedium(64, "SSD End ladder$",64, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
929 AliMedium(65, "SSD cone$", 65, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
931 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
933 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
935 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999.);
936 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
937 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
938 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
939 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
940 // After a call with ratios by number (negative number of elements),
941 // the ratio array is changed to the ratio by weight, so all successive
942 // calls with the same array must specify the number of elements as
944 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
945 // AliMaterial(82, "GEN Cables$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
946 // AliMaterial(83, "GEN patch pan$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
947 // AliMaterial(84, "GEN serv$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
948 AliMixture(85, "GEN Inox$", asteel, zsteel, 7.88, 4, wsteel);
949 AliMaterial(86, "GEN Al$", 26.981539, 13., 2.6989, 8.9, 999.);
950 AliMaterial(87,"inox/alum$", 32.1502,15.3383,3.0705,6.9197,999.);
952 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
953 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
954 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
955 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
956 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
957 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
958 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
959 // AliMedium(82,"GEN Cables$", 82, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
960 // AliMedium(83,"GEN patch pan$",83, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
961 // AliMedium(84,"GEN serv$", 84, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
962 AliMedium(85,"GEN Inox$", 85, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
963 AliMedium(86, "GEN Al$", 86, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
964 AliMedium(87,"inox/alum$", 87, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
967 //_____________________________________________________________________________
968 void AliITSvPPRcoarsesymm::Init(){
969 ////////////////////////////////////////////////////////////////////////
970 // Initialise the ITS after it has been created.
971 ////////////////////////////////////////////////////////////////////////
975 for(i=0;i<25;i++) cout << "*";cout << " ITSvPPRcoarsesymm_Init ";
976 for(i=0;i<25;i++) cout << "*";cout << endl;
980 for(i=0;i<72;i++) cout << "*";
985 //_____________________________________________________________________________
986 void AliITSvPPRcoarsesymm::DrawModule(){
987 ////////////////////////////////////////////////////////////////////////
988 // Draw a shaded view of the FMD version 6.
989 ////////////////////////////////////////////////////////////////////////
991 // Set everything unseen
992 gMC->Gsatt("*", "seen", -1);
994 // Set ALIC mother visible
995 gMC->Gsatt("ALIC","SEEN",0);
997 // Set the volumes visible
998 gMC->Gsatt("ITSD","SEEN",0);
999 gMC->Gsatt("ITS1","SEEN",1);
1000 gMC->Gsatt("ITS2","SEEN",1);
1001 gMC->Gsatt("ITS3","SEEN",1);
1002 gMC->Gsatt("ITS4","SEEN",1);
1003 gMC->Gsatt("ITS5","SEEN",1);
1004 gMC->Gsatt("ITS6","SEEN",1);
1006 gMC->Gsatt("IPCB","SEEN",1);
1007 gMC->Gsatt("ICO2","SEEN",1);
1008 gMC->Gsatt("ICER","SEEN",0);
1009 gMC->Gsatt("ISI2","SEEN",0);
1010 gMC->Gsatt("IPLA","SEEN",0);
1011 gMC->Gsatt("ICO3","SEEN",0);
1012 gMC->Gsatt("IEPX","SEEN",0);
1013 gMC->Gsatt("ISI3","SEEN",1);
1014 gMC->Gsatt("ISUP","SEEN",0);
1015 gMC->Gsatt("ICHO","SEEN",0);
1016 gMC->Gsatt("ICMO","SEEN",0);
1017 gMC->Gsatt("ICMD","SEEN",0);
1018 gMC->Gsatt("ICCO","SEEN",1);
1019 gMC->Gsatt("ICCM","SEEN",0);
1020 gMC->Gsatt("ITMD","SEEN",0);
1021 gMC->Gsatt("ITTT","SEEN",1);
1024 gMC->Gdopt("hide", "on");
1025 gMC->Gdopt("shad", "on");
1026 gMC->Gsatt("*", "fill", 7);
1027 gMC->SetClipBox(".");
1028 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
1029 gMC->DefaultRange();
1030 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
1031 gMC->Gdhead(1111, "Inner Tracking System Version 1");
1032 gMC->Gdman(17, 6, "MAN");
1034 //_____________________________________________________________________________
1035 void AliITSvPPRcoarsesymm::StepManager(){
1036 ////////////////////////////////////////////////////////////////////////
1037 // Called for every step in the ITS, then calls the AliITShit class
1038 // creator with the information to be recoreded about that hit.
1039 ////////////////////////////////////////////////////////////////////////
1045 TLorentzVector position, momentum;
1046 // TClonesArray &lhits = *fHits;
1048 // no hits for this coarse symmetric version.
1054 if(gMC->IsTrackInside()) vol[3] += 1;
1055 if(gMC->IsTrackEntering()) vol[3] += 2;
1056 if(gMC->IsTrackExiting()) vol[3] += 4;
1057 if(gMC->IsTrackOut()) vol[3] += 8;
1058 if(gMC->IsTrackDisappeared()) vol[3] += 16;
1059 if(gMC->IsTrackStop()) vol[3] += 32;
1060 if(gMC->IsTrackAlive()) vol[3] += 64;
1062 // Fill hit structure.
1063 if( !(gMC->TrackCharge()) ) return;
1065 // Only entering charged tracks
1066 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
1068 id=gMC->CurrentVolOffID(1,copy);
1070 id=gMC->CurrentVolOffID(2,copy);
1072 } else if(id==fIdSens[1]) {
1074 id=gMC->CurrentVolOffID(1,copy);
1076 id=gMC->CurrentVolOffID(2,copy);
1078 } else if(id==fIdSens[2]) {
1081 id=gMC->CurrentVolOffID(1,copy);
1083 } else if(id==fIdSens[3]) {
1086 id=gMC->CurrentVolOffID(1,copy);
1088 } else if(id==fIdSens[4]) {
1091 id=gMC->CurrentVolOffID(1,copy);
1093 } else if(id==fIdSens[5]) {
1096 id=gMC->CurrentVolOffID(1,copy);
1099 gMC->TrackPosition(position);
1100 gMC->TrackMomentum(momentum);
1101 hits[0]=position[0];
1102 hits[1]=position[1];
1103 hits[2]=position[2];
1104 hits[3]=momentum[0];
1105 hits[4]=momentum[1];
1106 hits[5]=momentum[2];
1107 hits[6]=gMC->Edep();
1108 hits[7]=gMC->TrackTime();
1109 // new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
1111 // no hits for this coarse symmetric version.