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 &s) :
87 ////////////////////////////////////////////////////////////////////////
88 // Copy Constructor for ITS version 7.
89 ////////////////////////////////////////////////////////////////////////
90 if(&s == this) return;
91 Warning("Copy Constructor","Not allowed to copy AliITSvPPRcoarsesymm");
94 //_____________________________________________________________________________
95 AliITSvPPRcoarsesymm& AliITSvPPRcoarsesymm::operator=(const AliITSvPPRcoarsesymm &source){
96 ////////////////////////////////////////////////////////////////////////
97 // Assignment operator for the ITS version 7.
98 ////////////////////////////////////////////////////////////////////////
99 if(&source == this) return *this;
100 Warning("= operator","Not allowed to copy AliITSvPPRcoarsesymm");
103 //_____________________________________________________________________________
104 AliITSvPPRcoarsesymm::~AliITSvPPRcoarsesymm() {
105 ////////////////////////////////////////////////////////////////////////
106 // Standard destructor for the ITS version 7.
107 ////////////////////////////////////////////////////////////////////////
110 //__________________________________________________________________________
111 void AliITSvPPRcoarsesymm::BuildGeometry(){
112 ////////////////////////////////////////////////////////////////////////
113 // Geometry builder for the ITS version 7.
114 ////////////////////////////////////////////////////////////////////////
116 const Int_t kColorITS=kYellow;
118 top = gAlice->GetGeometry()->GetNode("alice");
119 new TTUBE("S_layer1","Layer1 of ITS","void",3.8095,3.8095+1.03*9.36/100.,14.35);
121 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
122 node->SetLineColor(kColorITS);
125 new TTUBE("S_layer2","Layer2 of ITS","void",7.,7.+1.03*9.36/100.,14.35);
127 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
128 node->SetLineColor(kColorITS);
131 new TTUBE("S_layer3","Layer3 of ITS","void",15.,15.+0.94*9.36/100.,25.1);
133 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
134 node->SetLineColor(kColorITS);
137 new TTUBE("S_layer4","Layer4 of ITS","void",24.1,24.1+0.95*9.36/100.,32.1);
139 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
140 node->SetLineColor(kColorITS);
143 new TTUBE("S_layer5","Layer5 of ITS","void",38.5,38.5+0.91*9.36/100.,49.405);
145 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
146 node->SetLineColor(kColorITS);
149 new TTUBE("S_layer6","Layer6 of ITS","void",43.5765,43.5765+0.87*9.36/100.,55.27);
151 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
152 node->SetLineColor(kColorITS);
156 //_____________________________________________________________________________
157 void AliITSvPPRcoarsesymm::CreateGeometry(){
158 ////////////////////////////////////////////////////////////////////////
159 // This routine defines and Creates the geometry for version 7 of the ITS.
160 ////////////////////////////////////////////////////////////////////////
162 //INNER RADII OF THE SILICON LAYERS
163 Float_t rl[6] = { 3.8095,7.,15.,24.,38.5,43.5765 };
164 //THICKNESSES OF LAYERS (in % radiation length)
165 Float_t drl[6] = { 1.03,1.03,0.94,0.95,0.91,0.87 };
166 //HALF LENGTHS OF LAYERS
167 Float_t dzl[6] = { 14.35,14.35,25.1,32.1,49.405,55.27 };
168 //LENGTHS OF END-LADDER BOXES (ALL INCLUDED)
169 Float_t dzb[6] = { 12.4,12.4,13.5,15.,7.5,7.5 };
170 //THICKNESSES OF END-LADDER BOXES (ALL INCLUDED)
171 Float_t drb[6] = { rl[1]-rl[0],0.2,5.,5.,4.,4. };
174 Float_t dits[3], rlim, zmax;
176 Float_t pcits[100], ztpc;
177 Int_t idrotm[1999], i;
180 Int_t rails = 1; // flag for rails (1 --> rails in; 0 --> rails out)
181 Int_t suppmat = 0; // flag to change the material of the services
182 // supports (=0 copper, =1 aluminum, =2 carbon)
185 if(rails != 0 && rails != 1) {
186 cout << "ITS - WARNING: the switch for rails is not set neither to 0 (rails out) nor to 1 (rails in)."
187 " The default value of 1 (rails in) will be used." << endl;
191 cout << "ITS: Rails are out." << endl;
193 cout << "ITS: Rails are in." << endl;
196 suppmat = GetSupportMaterial();
198 if (suppmat != 0 && suppmat != 1 && suppmat != 2) {
199 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)."
200 " The default value of 0 (copper) will be used." << endl;
204 cout << "ITS: The material of the services supports is copper." << endl;
205 } else if (suppmat == 1){
206 cout << "ITS: The material of the services supports is aluminum." << endl;
208 cout << "ITS: The material of the services supports is carbon." << endl;
212 Int_t *idtmed = fIdtmed->GetArray()-199;
214 // CONVERT INTO CM (RL(SI)=9.36 CM)
215 for (i = 0; i < 6; ++i) {
216 drl[i] = drl[i] / 100. * 9.36;
219 // FIELD CAGE HALF LENGTH
225 // --- Define ghost volume containing the whole ITS (including services)
226 // and fill it with air
231 dgh[3] = -ztpc-5.-0.1;
276 dgh[48] = ztpc+4.+0.1;
279 gMC->Gsvolu("ITSV", "PCON", idtmed[275], dgh, 51);
281 // --- Place the ghost volume in its mother volume (ALIC) and make it
284 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
285 //gMC->Gsatt("ITSV", "SEEN", 0);
288 // --- Define ghost volume containing the six layers and fill it with air
317 gMC->Gsvolu("ITSD", "PCON", idtmed[275], dgh, 27);
319 // --- Place the ghost volume in its mother volume (ALIC) and make it
322 gMC->Gspos("ITSD", 1, "ITSV", 0., 0., 0., 0, "ONLY");
323 //gMC->Gsatt("ITSD", "SEEN", 0);
325 // ITS LAYERS (SILICON)
328 dits[1] = rl[0] + drl[0];
330 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
331 gMC->Gspos("ITS1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
334 dits[1] = rl[1] + drl[1];
336 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
337 gMC->Gspos("ITS2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
340 dits[1] = rl[2] + drl[2];
342 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
343 gMC->Gspos("ITS3", 1, "ITSD", 0., 0., 0., 0, "ONLY");
346 dits[1] = rl[3] + drl[3];
348 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
349 gMC->Gspos("ITS4", 1, "ITSD", 0., 0., 0., 0, "ONLY");
352 dits[1] = rl[4] + drl[4];
354 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
355 gMC->Gspos("ITS5", 1, "ITSD", 0., 0., 0., 0, "ONLY");
358 dits[1] = rl[5] + drl[5];
360 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
361 gMC->Gspos("ITS6", 1, "ITSD", 0., 0., 0., 0, "ONLY");
363 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SPD
365 gMC->Gsvolu("IEL1", "TUBE", idtmed[208], dits, 0);
366 for (i = 0; i < 2; i++) {
368 dits[1] = dits[0] + drb[i];
369 dits[2] = dzb[i] / 2.;
370 zpos = dzl[i] + dits[2];
371 gMC->Gsposp("IEL1", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
372 gMC->Gsposp("IEL1", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
375 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SDD
377 gMC->Gsvolu("IEL2", "TUBE", idtmed[237], dits, 0);
378 for (i = 2; i < 3; i++) {
380 dits[1] = dits[0] + drb[i];
381 dits[2] = dzb[i] / 2.;
382 zpos = dzl[i] + dits[2];
383 gMC->Gsposp("IEL2", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
384 gMC->Gsposp("IEL2", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
386 for (i = 3; i < 4; i++) {
388 dits[1] = dits[0] + drb[i];
389 dits[2] = dzb[i] / 2.;
390 zpos = dzl[i] + dits[2];
391 gMC->Gsposp("IEL2", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
392 gMC->Gsposp("IEL2", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
396 // END-LADDER ELECTRONICS BOXES AND CABLES FOR SSD
398 gMC->Gsvolu("IEL3", "TUBE", idtmed[263], dits, 0);
399 for (i = 4; i < 5; i++) {
401 dits[1] = dits[0] + drb[i];
402 dits[2] = dzb[i] / 2.;
403 zpos = dzl[i] + dits[2];
404 gMC->Gsposp("IEL3", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
405 gMC->Gsposp("IEL3", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
407 for (i = 5; i < 6; i++) {
408 dits[0] = rl[i]+0.4235;
409 dits[1] = dits[0] + drb[i];
410 dits[2] = dzb[i] / 2.;
411 zpos = dzl[i] + dits[2];
412 gMC->Gsposp("IEL3", i+1, "ITSD", 0., 0., zpos, 0, "ONLY", dits, 3);
413 gMC->Gsposp("IEL3", i+1+6, "ITSD", 0., 0.,-zpos, 0, "ONLY", dits, 3);
416 // DEFINE THERMAL SCREEN FOR SPD
421 gMC->Gsvolu("ICY1", "TUBE", idtmed[274], pcits, 3);
422 gMC->Gspos("ICY1", 1, "ITSD", 0., 0., 0., 0, "ONLY");
424 // DEFINE END CONES FOR SDD
426 pcits[0] = (59.-42.5)/2.;
431 gMC->Gsvolu("ICO1", "CONE", idtmed[238], pcits, 5);
432 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
433 gMC->Gspos("ICO1", 1, "ITSD", 0., 0., 42.5+pcits[0], 0, "ONLY");
434 gMC->Gspos("ICO1", 2, "ITSD", 0., 0., -(42.5+pcits[0]), idrotm[200], "ONLY");
436 // DEFINE CYLINDER BETWEEN SDD AND SSD
438 pcits[0] = (59.5-0.13/2.)/2.;
439 pcits[1] = (59.5+0.13/2.)/2.;
441 gMC->Gsvolu("ICY2", "TUBE", idtmed[274], pcits, 3);
442 gMC->Gspos("ICY2", 1, "ITSD", 0., 0., 0., 0, "ONLY");
444 // DEFINE END CONES FOR SSD
446 pcits[0] = (74.-59.)/2.;
451 gMC->Gsvolu("ICO2", "CONE", idtmed[264], pcits, 5);
452 gMC->Gspos("ICO2", 1, "ITSD", 0., 0., 59.+pcits[0], 0, "ONLY");
453 gMC->Gspos("ICO2", 2, "ITSD", 0., 0., -(59.+pcits[0]), idrotm[200], "ONLY");
456 // **************************** SERVICES *********************************
459 // --- DEFINE CABLES AT THE END OF THE ITS CONES - COPPER PART
469 gMC->Gsvolu("I1CU", "TUBS", idtmed[279], dgh, 5); // copper
470 } else if (suppmat == 1) {
471 gMC->Gsvolu("I1CU", "TUBS", idtmed[285], dgh, 5); // aluminum
473 gMC->Gsvolu("I1CU", "TUBS", idtmed[274], dgh, 5); // carbon
475 gMC->Gspos("I1CU", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
476 gMC->Gspos("I1CU", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
478 // --- DEFINE CABLES AT THE END OF THE ITS CONES - COPPER PART
488 gMC->Gsvolu("I2CU", "TUBS", idtmed[279], dgh, 5); // copper
489 } else if (suppmat == 1) {
490 gMC->Gsvolu("I2CU", "TUBS", idtmed[285], dgh, 5); // aluminum
492 gMC->Gsvolu("I2CU", "TUBS", idtmed[274], dgh, 5); // carbon
494 gMC->Gspos("I2CU", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
495 gMC->Gspos("I2CU", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
498 // --- DEFINE CABLES AT THE END OF THE ITS CONES - CARBON PART
502 dgh[1] = 46.+1.0+1.5;
507 gMC->Gsvolu("I1CC", "TUBS", idtmed[274], dgh, 5);
508 gMC->Gspos("I1CC", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
509 gMC->Gspos("I1CC", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
511 // --- DEFINE CABLES AT THE END OF THE ITS CONES - CARBON PART
515 dgh[1] = 46.+1.0+1.5;
520 gMC->Gsvolu("I2CC", "TUBS", idtmed[274], dgh, 5);
521 gMC->Gspos("I2CC", 1, "ITSV", 0., 0., 83.5, 0, "ONLY");
522 gMC->Gspos("I2CC", 2, "ITSV", 0., 0., -83.5, idrotm[200], "ONLY");
524 // --- DEFINE PATCH PANELS AT THE END OF THE ITS CONES
533 gMC->Gsvolu("IPA1", "TUBS", idtmed[285], dgh, 5);
534 gMC->Gspos("IPA1", 1, "ITSV", 0., 0., 95.25, 0, "ONLY");
535 gMC->Gspos("IPA1", 2, "ITSV", 0., 0., -95.25, idrotm[200], "ONLY");
538 // --- DEFINE PATCH PANELS AT THE END OF THE ITS CONES
547 gMC->Gsvolu("IPA2", "TUBS", idtmed[285], dgh, 5);
548 gMC->Gspos("IPA2", 1, "ITSV", 0., 0., 95.25, 0, "ONLY");
549 gMC->Gspos("IPA2", 2, "ITSV", 0., 0., -95.25, idrotm[200], "ONLY");
551 // --- DEFINE CABLES/COOLING BELOW THE TPC - COPPER PART - UPPER PART
553 dgh[0] = (ztpc-97.5)/2.;
560 gMC->Gsvolu("ICU1", "CONS", idtmed[279], dgh, 7);
561 gMC->Gspos("ICU1", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
562 gMC->Gspos("ICU1", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
564 // --- DEFINE CABLES/COOLING BELOW THE TPC - COPPER PART - LOWER PART
566 dgh[0] = (ztpc-97.5)/2.;
573 gMC->Gsvolu("ICU2", "CONS", idtmed[279], dgh, 7);
574 gMC->Gspos("ICU2", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
575 gMC->Gspos("ICU2", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
577 // --- DEFINE CABLES/COOLING BELOW THE TPC - CARBON PART - UPPER PART
579 dgh[0] = (ztpc-97.5)/2.;
581 dgh[2] = 46.2+1.0+1.5;
583 dgh[4] = 62.3+1.0+1.5;
586 gMC->Gsvolu("ICC1", "CONS", idtmed[274], dgh, 7);
587 gMC->Gspos("ICC1", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
588 gMC->Gspos("ICC1", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
590 // --- DEFINE CABLES/COOLING BELOW THE TPC - CARBON PART - LOWER PART
592 dgh[0] = (ztpc-97.5)/2.;
594 dgh[2] = 46.2+1.0+1.5;
596 dgh[4] = 62.3+1.0+1.5;
599 gMC->Gsvolu("ICC2", "CONS", idtmed[274], dgh, 7);
600 gMC->Gspos("ICC2", 1, "ITSV", 0., 0., 97.5+dgh[0], 0, "ONLY");
601 gMC->Gspos("ICC2", 2, "ITSV", 0., 0., -(97.5+dgh[0]), idrotm[200], "ONLY");
603 // --- DEFINE CABLES/COOLING BEHIND THE TPC - COPPER PART - UPPER PART
610 gMC->Gsvolu("ICU3", "TUBS", idtmed[279], dgh, 5);
611 gMC->Gspos("ICU3", 1, "ITSV", 0., 0., ztpc+1.5+dgh[2], 0, "ONLY");
612 gMC->Gspos("ICU3", 2, "ITSV", 0., 0., -(ztpc+1.5+dgh[2]), idrotm[200], "ONLY");
614 // --- DEFINE CABLES/COOLING BEHIND THE TPC - COPPER PART - LOWER PART
621 gMC->Gsvolu("ICU4", "TUBS", idtmed[279], dgh, 5);
622 gMC->Gspos("ICU4", 1, "ITSV", 0., 0., ztpc+1.5+dgh[2], 0, "ONLY");
623 gMC->Gspos("ICU4", 2, "ITSV", 0., 0., -(ztpc+1.5+dgh[2]), idrotm[200], "ONLY");
625 // --- DEFINE CABLES/COOLING BEHIND THE TPC - CARBON PART - UPPER PART
632 gMC->Gsvolu("ICC3", "TUBS", idtmed[274], dgh, 5);
633 gMC->Gspos("ICC3", 1, "ITSV", 0., 0., ztpc+dgh[2], 0, "ONLY");
634 gMC->Gspos("ICC3", 2, "ITSV", 0., 0., -(ztpc+dgh[2]), idrotm[200], "ONLY");
636 // --- DEFINE CABLES/COOLING BEHIND THE TPC - CARBON PART - LOWER PART
643 gMC->Gsvolu("ICC4", "TUBS", idtmed[274], dgh, 5);
644 gMC->Gspos("ICC4", 1, "ITSV", 0., 0., ztpc+dgh[2], 0, "ONLY");
645 gMC->Gspos("ICC4", 2, "ITSV", 0., 0., -(ztpc+dgh[2]), idrotm[200], "ONLY");
647 // --- DEFINE HOOK TO THE TPC ON OTHER SIDE W.R.T. THE ABSORBER - UPPER PART
654 gMC->Gsvolu("IHK1", "TUBS", idtmed[284], dgh, 5);
655 gMC->Gspos("IHK1", 1, "ITSV", 0., 0., -ztpc-dgh[2], 0, "ONLY");
657 // --- DEFINE HOOK TO THE TPC ON OTHER SIDE W.R.T. THE ABSORBER - LOWER PART
664 gMC->Gsvolu("IHK2", "TUBS", idtmed[284], dgh, 5);
665 gMC->Gspos("IHK2", 1, "ITSV", 0., 0., -ztpc-dgh[2], 0, "ONLY");
667 // --- DEFINE RAILS BETWEEN THE ITS AND THE TPC
674 gMC->Gsvolu("IRA1", "BOX ", idtmed[239], dgh, 3);
675 gMC->Gspos("IRA1", 1, "ITSV", 53.5, 0., -69.5, 0, "ONLY");
676 gMC->Gsvolu("IRA2", "BOX ", idtmed[239], dgh, 3);
677 gMC->Gspos("IRA2", 1, "ITSV", -53.5, 0., -69.5, 0, "ONLY");
679 dgh[0] = 2.-0.5; // 0.5 was determined in such a way that the aluminum area is 20.9 cm^2
680 dgh[1] = 8.-0.5; // 0.5 was determined in such a way that the aluminum area is 20.9 cm^2
682 gMC->Gsvolu("IRA3", "BOX ", idtmed[275], dgh, 3);
683 gMC->Gspos("IRA3", 1, "IRA1", 0., 0., 0., 0, "ONLY");
684 gMC->Gsvolu("IRA4", "BOX ", idtmed[275], dgh, 3);
685 gMC->Gspos("IRA4", 1, "IRA2", 0., 0., 0., 0, "ONLY");
689 // --- DEFINE CYLINDERS HOLDING RAILS BETWEEN THE ITS AND THE TPC
694 gMC->Gsvolu("ICYL", "TUBE", idtmed[285], dgh, 3);
695 gMC->Gspos("ICYL", 1, "ALIC", 0., 0., 74.1, 0, "ONLY");
696 gMC->Gspos("ICYL", 2, "ALIC", 0., 0., -74.1, idrotm[200], "ONLY");
698 // --- DEFINE SUPPORTS FOR RAILS ATTACHED TO THE CYLINDERS
702 dgh[2] = 5.; // 5. comes from the fact that the volume has to be 567.6/2 cm^3
703 gMC->Gsvolu("ISR1", "TUBE", idtmed[286], dgh, 3);
704 gMC->Gspos("ISR1", 1, "ITSV", 53.4292, 10.7053, 79.75, 0, "ONLY");
705 gMC->Gspos("ISR1", 2, "ITSV", 53.4292, -10.7053, 79.75, 0, "ONLY");
706 gMC->Gspos("ISR1", 3, "ITSV", -53.4292, 10.7053, 79.75, 0, "ONLY");
707 gMC->Gspos("ISR1", 4, "ITSV", -53.4292, -10.7053, 79.75, 0, "ONLY");
708 gMC->Gspos("ISR1", 5, "ITSV", 53.4292, 10.7053, -79.75, 0, "ONLY");
709 gMC->Gspos("ISR1", 6, "ITSV", 53.4292, -10.7053, -79.75, 0, "ONLY");
710 gMC->Gspos("ISR1", 7, "ITSV", -53.4292, 10.7053, -79.75, 0, "ONLY");
711 gMC->Gspos("ISR1", 8, "ITSV", -53.4292, -10.7053, -79.75, 0, "ONLY");
713 // --- DEFINE SUPPORTS FOR RAILS ATTACHED TO THE ABSORBER
718 gMC->Gsvolu("ISR2", "BOX ", idtmed[285], dgh, 3);
719 gMC->Gspos("ISR2", 1, "ALIC", 53.5, 0., 125.5, 0, "ONLY");
720 gMC->Gsvolu("ISR3", "BOX ", idtmed[285], dgh, 3);
721 gMC->Gspos("ISR3", 1, "ALIC", -53.5, 0., 125.5, 0, "ONLY");
726 gMC->Gsvolu("ISR4", "BOX ", idtmed[275], dgh, 3);
727 gMC->Gspos("ISR4", 1, "ISR2", 0., 0., 0., 0, "ONLY");
728 gMC->Gsvolu("ISR5", "BOX ", idtmed[275], dgh, 3);
729 gMC->Gspos("ISR5", 1, "ISR3", 0., 0., 0., 0, "ONLY");
731 // --- DEFINE SUPPORTS TO ATTACH THE ITS TO THE TPC
736 gMC->Gsvolu("ISR6", "TUBE", idtmed[285], dgh, 3);
737 gMC->Gspos("ISR6", 1, "ALIC", 0., 54., 77., 0, "ONLY");
738 gMC->Gspos("ISR6", 2, "ALIC", 0., 54., -77., 0, "ONLY");
739 gMC->Gspos("ISR6", 3, "ALIC", 0., -54., -77., 0, "ONLY");
741 // --- Outputs the geometry tree in the EUCLID/CAD format
744 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
747 //_____________________________________________________________________________
748 void AliITSvPPRcoarsesymm::CreateMaterials(){
749 ////////////////////////////////////////////////////////////////////////
751 // Create ITS materials
752 // This function defines the default materials used in the Geant
753 // Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
754 // AliITSvPPRcoarseasymm.
755 // In general it is automatically replaced by
756 // the CreatMaterials routine defined in AliITSv?. Should the function
757 // CreateMaterials not exist for the geometry version you are using this
758 // one is used. See the definition found in AliITSv5 or the other routine
759 // for a complete definition.
762 Float_t awat[2] = { 1.00794,15.9994 };
763 Float_t zwat[2] = { 1.,8. };
764 Float_t wwat[2] = { 2.,1. };
765 Float_t denswat = 1.;
767 Float_t afre[2] = { 12.011,18.9984032 };
768 Float_t zfre[2] = { 6.,9. };
769 Float_t wfre[2] = { 5.,12. };
770 Float_t densfre = 1.5;
772 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
773 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
774 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
775 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
776 Float_t denscer = 3.6;
778 // 60% SiO2 , 40% G10FR4
780 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
781 Float_t zpcb[3] = { 14.,8.,8.875 };
782 Float_t wpcb[3] = { .28,.32,.4 };
783 Float_t denspcb = 1.8;
785 Float_t apoly[2] = { 12.01,1. };
786 Float_t zpoly[2] = { 6.,1. };
787 Float_t wpoly[2] = { .33,.67 };
789 Float_t zserv[4] = { 1.,6.,26.,29. };
790 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
791 Float_t wserv[4] = { .014,.086,.42,.48 };
793 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
794 Float_t zsteel[4] = { 26.,24.,28.,14. };
795 Float_t wsteel[4] = { .715,.18,.1,.005 };
798 Int_t isxfld = gAlice->Field()->Integ();
799 Float_t sxmgmx = gAlice->Field()->Max();
802 // --- Define the various materials for GEANT ---
804 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
806 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999.);
807 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
808 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
809 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999.);
811 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999.);
812 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
813 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
814 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
815 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
816 AliMaterial(9, "SPD End ladder$", 55.845, 26., 7.87/10., 1.76*10., 999.);
817 //AliMaterial(9, "SPD End ladder$", 55.845, 26., -7.87/10., -1.76*10., 999.);
818 AliMaterial(10, "SPD cone$",28.0855, 14., 2.33, 9.36, 999.); // check !!!!
820 AliMedium(0, "SPD Si$", 0, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
821 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
822 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
823 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
824 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
825 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
826 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
827 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
828 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
829 AliMedium(9, "SPD End ladder$",9, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
830 AliMedium(10, "SPD cone$", 10, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
832 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
834 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999.);
835 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
836 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
837 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999.);
839 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999.);
840 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
841 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
842 // After a call with ratios by number (negative number of elements),
843 // the ratio array is changed to the ratio by weight, so all successive
844 // calls with the same array must specify the number of elements as
846 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
847 // After a call with ratios by number (negative number of elements),
848 // the ratio array is changed to the ratio by weight, so all successive
849 // calls with the same array must specify the number of elements as
851 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
852 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
853 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999.);
854 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
855 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
856 AliMaterial(38, "SDD End ladder$", 69.9298, 29.8246, 0.3824, 36.5103, 999.);
857 AliMaterial(39, "SDD cone$",63.546, 29., 1.15, 1.265, 999.);
858 AliMaterial(40, "SDD M55J$",12.3565, 6.4561, 1.8097, 22.9570, 999.);
859 //AliMaterial(38, "SDD End ladder$", 69.9298, 29.8246, -0.3824, -36.5103, 999.);
860 //AliMaterial(39, "SDD cone$",63.546, 29., -1.15, -1.265, 999.);
864 AliMedium(25, "SDD Si$", 25, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
865 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
866 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
867 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
868 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
869 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
870 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
871 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
872 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
873 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
874 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
875 AliMedium(36, "SDD Ceramics$", 36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
876 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
877 AliMedium(38, "SDD End ladder$",38, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
878 AliMedium(39, "SDD cone$", 39, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
879 AliMedium(40, "SDD M55J$", 40, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
880 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
882 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
883 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
884 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
885 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
887 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999.);
888 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
889 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999.);
890 // After a call with ratios by number (negative number of elements),
891 // the ratio array is changed to the ratio by weight, so all successive
892 // calls with the same array must specify the number of elements as
894 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
895 // After a call with ratios by number (negative number of elements),
896 // the ratio array is changed to the ratio by weight, so all successive
897 // calls with the same array must specify the number of elements as
899 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
900 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
901 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
902 // After a call with ratios by number (negative number of elements),
903 // the ratio array is changed to the ratio by weight, so all successive
904 // calls with the same array must specify the number of elements as
906 AliMixture(61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
907 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
909 AliMaterial(63, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
910 AliMaterial(64, "SSD End ladder$", 32.0988, 15.4021, 0.68, 35.3238, 999.);
911 AliMaterial(65, "SSD cone$",63.546, 29., 1.15, 1.265, 999.);
912 //AliMaterial(64, "SSD End ladder$", 32.0988, 15.4021, -0.68, -35.3238, 999.);
913 //AliMaterial(65, "SSD cone$",63.546, 29., -1.15, -1.265, 999.);
915 AliMedium(50, "SSD Si$", 50, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
916 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
917 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
918 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
919 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
920 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
921 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
922 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
923 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
924 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
925 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
926 AliMedium(61, "SSD Ceramics$", 61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
927 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
928 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
929 AliMedium(64, "SSD End ladder$",64, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
930 AliMedium(65, "SSD cone$", 65, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
932 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
934 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
936 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999.);
937 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
938 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
939 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
940 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
941 // After a call with ratios by number (negative number of elements),
942 // the ratio array is changed to the ratio by weight, so all successive
943 // calls with the same array must specify the number of elements as
945 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
946 // AliMaterial(82, "GEN Cables$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
947 // AliMaterial(83, "GEN patch pan$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
948 // AliMaterial(84, "GEN serv$", 12.011, 6., 2.265, 18.8, 999.); // check !!!
949 AliMixture(85, "GEN Inox$", asteel, zsteel, 7.88, 4, wsteel);
950 AliMaterial(86, "GEN Al$", 26.981539, 13., 2.6989, 8.9, 999.);
951 AliMaterial(87,"inox/alum$", 32.1502,15.3383,3.0705,6.9197,999.);
953 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
954 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
955 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
956 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
957 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
958 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
959 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
960 // AliMedium(82,"GEN Cables$", 82, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
961 // AliMedium(83,"GEN patch pan$",83, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
962 // AliMedium(84,"GEN serv$", 84, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
963 AliMedium(85,"GEN Inox$", 85, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
964 AliMedium(86, "GEN Al$", 86, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
965 AliMedium(87,"inox/alum$", 87, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
968 //_____________________________________________________________________________
969 void AliITSvPPRcoarsesymm::Init(){
970 ////////////////////////////////////////////////////////////////////////
971 // Initialise the ITS after it has been created.
972 ////////////////////////////////////////////////////////////////////////
976 for(i=0;i<25;i++) cout << "*";cout << " ITSvPPRcoarsesymm_Init ";
977 for(i=0;i<25;i++) cout << "*";cout << endl;
981 for(i=0;i<72;i++) cout << "*";
986 //_____________________________________________________________________________
987 void AliITSvPPRcoarsesymm::DrawModule(){
988 ////////////////////////////////////////////////////////////////////////
989 // Draw a shaded view of the FMD version 6.
990 ////////////////////////////////////////////////////////////////////////
992 // Set everything unseen
993 gMC->Gsatt("*", "seen", -1);
995 // Set ALIC mother visible
996 gMC->Gsatt("ALIC","SEEN",0);
998 // Set the volumes visible
999 gMC->Gsatt("ITSD","SEEN",0);
1000 gMC->Gsatt("ITS1","SEEN",1);
1001 gMC->Gsatt("ITS2","SEEN",1);
1002 gMC->Gsatt("ITS3","SEEN",1);
1003 gMC->Gsatt("ITS4","SEEN",1);
1004 gMC->Gsatt("ITS5","SEEN",1);
1005 gMC->Gsatt("ITS6","SEEN",1);
1007 gMC->Gsatt("IPCB","SEEN",1);
1008 gMC->Gsatt("ICO2","SEEN",1);
1009 gMC->Gsatt("ICER","SEEN",0);
1010 gMC->Gsatt("ISI2","SEEN",0);
1011 gMC->Gsatt("IPLA","SEEN",0);
1012 gMC->Gsatt("ICO3","SEEN",0);
1013 gMC->Gsatt("IEPX","SEEN",0);
1014 gMC->Gsatt("ISI3","SEEN",1);
1015 gMC->Gsatt("ISUP","SEEN",0);
1016 gMC->Gsatt("ICHO","SEEN",0);
1017 gMC->Gsatt("ICMO","SEEN",0);
1018 gMC->Gsatt("ICMD","SEEN",0);
1019 gMC->Gsatt("ICCO","SEEN",1);
1020 gMC->Gsatt("ICCM","SEEN",0);
1021 gMC->Gsatt("ITMD","SEEN",0);
1022 gMC->Gsatt("ITTT","SEEN",1);
1025 gMC->Gdopt("hide", "on");
1026 gMC->Gdopt("shad", "on");
1027 gMC->Gsatt("*", "fill", 7);
1028 gMC->SetClipBox(".");
1029 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
1030 gMC->DefaultRange();
1031 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
1032 gMC->Gdhead(1111, "Inner Tracking System Version 1");
1033 gMC->Gdman(17, 6, "MAN");
1035 //_____________________________________________________________________________
1036 void AliITSvPPRcoarsesymm::StepManager(){
1037 ////////////////////////////////////////////////////////////////////////
1038 // Called for every step in the ITS, then calls the AliITShit class
1039 // creator with the information to be recoreded about that hit.
1040 ////////////////////////////////////////////////////////////////////////
1046 TLorentzVector position, momentum;
1047 // TClonesArray &lhits = *fHits;
1049 // no hits for this coarse symmetric version.
1055 if(gMC->IsTrackInside()) vol[3] += 1;
1056 if(gMC->IsTrackEntering()) vol[3] += 2;
1057 if(gMC->IsTrackExiting()) vol[3] += 4;
1058 if(gMC->IsTrackOut()) vol[3] += 8;
1059 if(gMC->IsTrackDisappeared()) vol[3] += 16;
1060 if(gMC->IsTrackStop()) vol[3] += 32;
1061 if(gMC->IsTrackAlive()) vol[3] += 64;
1063 // Fill hit structure.
1064 if( !(gMC->TrackCharge()) ) return;
1066 // Only entering charged tracks
1067 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
1069 id=gMC->CurrentVolOffID(1,copy);
1071 id=gMC->CurrentVolOffID(2,copy);
1073 } else if(id==fIdSens[1]) {
1075 id=gMC->CurrentVolOffID(1,copy);
1077 id=gMC->CurrentVolOffID(2,copy);
1079 } else if(id==fIdSens[2]) {
1082 id=gMC->CurrentVolOffID(1,copy);
1084 } else if(id==fIdSens[3]) {
1087 id=gMC->CurrentVolOffID(1,copy);
1089 } else if(id==fIdSens[4]) {
1092 id=gMC->CurrentVolOffID(1,copy);
1094 } else if(id==fIdSens[5]) {
1097 id=gMC->CurrentVolOffID(1,copy);
1100 gMC->TrackPosition(position);
1101 gMC->TrackMomentum(momentum);
1102 hits[0]=position[0];
1103 hits[1]=position[1];
1104 hits[2]=position[2];
1105 hits[3]=momentum[0];
1106 hits[4]=momentum[1];
1107 hits[5]=momentum[2];
1108 hits[6]=gMC->Edep();
1109 hits[7]=gMC->TrackTime();
1110 // new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->GetCurrentTrackNumber(),vol,hits);
1112 // no hits for this coarse symmetric version.