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 Revision 1.14.2.6 2000/06/12 19:14:32 barbera
19 Remove partical transision to new Config.C calling convension. Bug Found.
21 Revision 1.14.2.5 2000/06/12 18:15:13 barbera
22 fixed posible compilation errors on HP unix. Modifided default constructor
23 for use with new calling requirements. Removed creation of hits from this
26 Revision 1.14.2.4 2000/06/11 20:37:26 barbera
27 coding convenstion update.
29 Revision 1.14.2.2 2000/05/19 10:09:21 nilsen
30 fix for bug with HP and Sun unix + fix for event display in ITS-working branch
32 Revision 1.14.2.1 2000/03/04 23:45:19 nilsen
33 Fixed up the comments/documentation.
35 Revision 1.14 1999/11/25 06:52:56 fca
38 Revision 1.13.2.1 1999/11/25 06:52:21 fca
41 Revision 1.13 1999/10/27 11:16:26 fca
42 Correction of problem in geometry
44 Revision 1.12 1999/10/22 08:25:25 fca
45 remove double definition of destructors
47 Revision 1.11 1999/10/22 08:16:49 fca
48 Correct destructors, thanks to I.Hrivnacova
50 Revision 1.10 1999/10/06 19:56:50 fca
53 Revision 1.9 1999/10/05 08:05:09 fca
54 Minor corrections for uninitialised variables.
56 Revision 1.8 1999/09/29 09:24:20 fca
57 Introduction of the Copyright and cvs Log
61 ///////////////////////////////////////////////////////////////////////////////
63 // Inner Traking System version 1 //
64 // This class contains the base procedures for the Inner Tracking System //
66 // Authors: R. Barbera, A. Morsch.
70 // NOTE: THIS IS THE COARSE pre.TDR geometry of the ITS. THIS WILL NOT WORK
71 // with the geometry or module classes or any analysis classes. You are
72 // strongly encouraged to uses AliITSv5.
74 ///////////////////////////////////////////////////////////////////////////////
79 #include <TGeometry.h>
82 #include <TFile.h> // only required for Tracking function?
84 #include <TObjArray.h>
85 #include <TClonesArray.h>
91 #include "AliITShit.h"
98 //_____________________________________________________________________________
99 AliITSv1::AliITSv1()/*:AliITS("ITS","TDR cource version")*/ {
100 ////////////////////////////////////////////////////////////////////////
101 // Standard default constructor for the ITS version 1.
102 ////////////////////////////////////////////////////////////////////////
104 fId1Name = new char*[fId1N];
105 fId1Name[0] = "ITS1";
106 fId1Name[1] = "ITS2";
107 fId1Name[2] = "ITS3";
108 fId1Name[3] = "ITS4";
109 fId1Name[4] = "ITS5";
110 fId1Name[5] = "ITS6";
111 printf("Created ITS TDR Cource version\n");
113 //_____________________________________________________________________________
114 AliITSv1::AliITSv1(const char *name, const char *title) : AliITS(name, title){
115 ////////////////////////////////////////////////////////////////////////
116 // Standard constructor for the ITS version 1.
117 ////////////////////////////////////////////////////////////////////////
119 fId1Name = new char*[fId1N];
120 fId1Name[0] = "ITS1";
121 fId1Name[1] = "ITS2";
122 fId1Name[2] = "ITS3";
123 fId1Name[3] = "ITS4";
124 fId1Name[4] = "ITS5";
125 fId1Name[5] = "ITS6";
126 printf("Created ITS TDR Cource version\n");
128 //____________________________________________________________________________
129 AliITSv1::AliITSv1(const AliITSv1 &source){
130 ////////////////////////////////////////////////////////////////////////
131 // Copy Constructor for ITS version 1.
132 ////////////////////////////////////////////////////////////////////////
133 if(&source == this) return;
134 this->fId1N = source.fId1N;
135 this->fId1Name = new char*[fId1N];
137 for(i=0;i<6;i++) strcpy(this->fId1Name[i],source.fId1Name[i]);
140 //_____________________________________________________________________________
141 AliITSv1& AliITSv1::operator=(const AliITSv1 &source){
142 ////////////////////////////////////////////////////////////////////////
143 // Assignment operator for the ITS version 1.
144 ////////////////////////////////////////////////////////////////////////
145 if(&source == this) return *this;
146 this->fId1N = source.fId1N;
147 this->fId1Name = new char*[fId1N];
149 for(i=0;i<6;i++) strcpy(this->fId1Name[i],source.fId1Name[i]);
152 //_____________________________________________________________________________
153 AliITSv1::~AliITSv1() {
154 ////////////////////////////////////////////////////////////////////////
155 // Standard destructor for the ITS version 1.
156 ////////////////////////////////////////////////////////////////////////
158 }//__________________________________________________________________________
159 void AliITSv1::BuildGeometry(){
160 ////////////////////////////////////////////////////////////////////////
161 // Geometry builder for the ITS version 1.
162 ////////////////////////////////////////////////////////////////////////
164 const Int_t kColorITS=kYellow;
166 top = gAlice->GetGeometry()->GetNode("alice");
168 new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
170 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
171 node->SetLineColor(kColorITS);
174 new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
176 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
177 node->SetLineColor(kColorITS);
180 new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
182 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
183 node->SetLineColor(kColorITS);
186 new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
188 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
189 node->SetLineColor(kColorITS);
192 new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
194 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
195 node->SetLineColor(kColorITS);
198 new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
200 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
201 node->SetLineColor(kColorITS);
204 //_____________________________________________________________________________
205 void AliITSv1::CreateGeometry(){
206 ////////////////////////////////////////////////////////////////////////
207 // This routine defines and Creates the geometry for version 1 of the ITS.
208 ////////////////////////////////////////////////////////////////////////
210 Float_t drcer[6] = { 0.,0.,.08,.08,0.,0. }; //CERAMICS THICKNESS
211 Float_t drepx[6] = { 0.,0.,0.,0.,.5357,.5357 }; //EPOXY THICKNESS
212 Float_t drpla[6] = { 0.,0.,0.,0.,.1786,.1786 }; //PLASTIC THICKNESS
213 Float_t dzb[6] = { 0.,0.,15.,15.,4.,4. }; //LENGTH OF BOXES
214 Float_t dphi[6] = { 72.,72.,72.,72.,50.6,45. }; //COVERED PHI-RANGE FOR LAYERS 1-6
215 Float_t rl[6] = { 3.9,7.6,14.,24.,40.,45. }; //SILICON LAYERS INNER RADIUS
216 Float_t drl[6] = { .755,.755,.809,.809,.7,.7 }; //THICKNESS OF LAYERS (in % radiation length)
217 Float_t dzl[6] = { 12.67,16.91,20.85,29.15,45.11,50.975 };//HALF LENGTH OF LAYERS
218 Float_t drpcb[6] = { 0.,0.,.06,.06,0.,0. }; //PCB THICKNESS
219 Float_t drcu[6] = { 0.,0.,.0504,.0504,.0357,.0357 }; //COPPER THICKNESS
220 Float_t drsi[6] = { 0.,0.,.006,.006,.3571,.3571 }; //SILICON THICKNESS
224 Float_t rend, drcatpc, dzco, zend, dits[3], rlim, drsu, zmax;
225 Float_t zpos, dzco1, dzco2;
226 Float_t drcac[6], acone, dphii;
227 Float_t pcits[15], xltpc;
228 Float_t rzcone, rstep, r0, z0, acable, fp, dz, zi, ri;
232 Int_t *idtmed = fIdtmed->GetArray()-199;
234 // CONVERT INTO CM (RL(SI)=9.36 CM)
235 for(i = 0; i < 6; ++i) {
236 drl[i] = drl[i] / 100. * 9.36;
239 // SUPPORT ENDPLANE THICKNESS
240 drsu = 2.*0.06+1./20; // 1./20. is 1 cm of honeycomb (1/20 carbon density);
246 // CABLE THICKNESS (CONICAL CABLES CONNECTING THE LAYERS)
255 // CONE RADIUS AT 1ST LAYER
259 // FIELD CAGE HALF LENGTH
267 // PARAMETERS FOR SMALL (1/2) ITS
269 for(i = 0; i < 6; ++i) {
284 // EQUAL DISTRIBUTION INTO THE 6 LAYERS
285 rstep = drcatpc / 6.;
286 for(i = 0; i < 6; ++i) {
287 drcac[i] = (i+1) * rstep;
290 // NUMBER OF PHI SECTORS
294 // PACK IN PHI AS MUCH AS POSSIBLE
295 // NOW PACK USING THICKNESS
297 for(i = 0; i < 6; ++i) {
302 // PHI-PACKING NOT SUFFICIENT ?
304 if (dphi[i]/45 < fp) {
305 drcac[i] = drcac[i] * fp * 45/dphi[i];
310 // --- Define ghost volume containing the six layers and fill it with air
315 gMC->Gsvolu("ITSV", "TUBE", idtmed[275], dgh, 3);
317 // --- Place the ghost volume in its mother volume (ALIC) and make it
320 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
321 gMC->Gsatt("ITSV", "SEEN", 0);
323 // ITS LAYERS (SILICON)
326 dits[1] = rl[0] + drl[0];
328 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
329 gMC->Gspos("ITS1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
332 dits[1] = rl[1] + drl[1];
334 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
335 gMC->Gspos("ITS2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
338 dits[1] = rl[2] + drl[2];
340 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
341 gMC->Gspos("ITS3", 1, "ITSV", 0., 0., 0., 0, "ONLY");
344 dits[1] = rl[3] + drl[3];
346 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
347 gMC->Gspos("ITS4", 1, "ITSV", 0., 0., 0., 0, "ONLY");
350 dits[1] = rl[4] + drl[4];
352 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
353 gMC->Gspos("ITS5", 1, "ITSV", 0., 0., 0., 0, "ONLY");
356 dits[1] = rl[5] + drl[5];
358 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
359 gMC->Gspos("ITS6", 1, "ITSV", 0., 0., 0., 0, "ONLY");
363 // PCB (layer #3 and #4)
365 gMC->Gsvolu("IPCB", "TUBE", idtmed[233], dits, 0);
366 for(i = 2; i < 4; ++i) {
368 dits[1] = dits[0] + drpcb[i];
369 dits[2] = dzb[i] / 2.;
370 zpos = dzl[i] + dits[2];
371 gMC->Gsposp("IPCB", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
372 gMC->Gsposp("IPCB", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
375 // COPPER (layer #3 and #4)
377 gMC->Gsvolu("ICO2", "TUBE", idtmed[234], dits, 0);
378 for(i = 2; i < 4; ++i) {
379 dits[0] = rl[i] + drpcb[i];
380 dits[1] = dits[0] + drcu[i];
381 dits[2] = dzb[i] / 2.;
382 zpos = dzl[i] + dits[2];
383 gMC->Gsposp("ICO2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
384 gMC->Gsposp("ICO2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
387 // CERAMICS (layer #3 and #4)
389 gMC->Gsvolu("ICER", "TUBE", idtmed[235], dits, 0);
390 for(i = 2; i < 4; ++i) {
391 dits[0] = rl[i] + drpcb[i] + drcu[i];
392 dits[1] = dits[0] + drcer[i];
393 dits[2] = dzb[i] / 2.;
394 zpos = dzl[i] + dits[2];
395 gMC->Gsposp("ICER", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
396 gMC->Gsposp("ICER", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
399 // SILICON (layer #3 and #4)
401 gMC->Gsvolu("ISI2", "TUBE", idtmed[226], dits, 0);
402 for(i = 2; i < 4; ++i) {
403 dits[0] = rl[i] + drpcb[i] + drcu[i] + drcer[i];
404 dits[1] = dits[0] + drsi[i];
405 dits[2] = dzb[i] / 2.;
406 zpos = dzl[i] + dits[2];
407 gMC->Gsposp("ISI2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
408 gMC->Gsposp("ISI2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
411 // PLASTIC (G10FR4) (layer #5 and #6)
413 gMC->Gsvolu("IPLA", "TUBE", idtmed[262], dits, 0);
414 for(i = 4; i < 6; ++i) {
416 dits[1] = dits[0] + drpla[i];
417 dits[2] = dzb[i] / 2.;
418 zpos = dzl[i] + dits[2];
419 gMC->Gsposp("IPLA", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
420 gMC->Gsposp("IPLA", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
423 // COPPER (layer #5 and #6)
425 gMC->Gsvolu("ICO3", "TUBE", idtmed[259], dits, 0);
426 for(i = 4; i < 6; ++i) {
427 dits[0] = rl[i] + drpla[i];
428 dits[1] = dits[0] + drcu[i];
429 dits[2] = dzb[i] / 2.;
430 zpos = dzl[i] + dits[2];
431 gMC->Gsposp("ICO3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
432 gMC->Gsposp("ICO3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
435 // EPOXY (layer #5 and #6)
437 gMC->Gsvolu("IEPX", "TUBE", idtmed[262], dits, 0);
438 for(i = 4; i < 6; ++i) {
439 dits[0] = rl[i] + drpla[i] + drcu[i];
440 dits[1] = dits[0] + drepx[i];
441 dits[2] = dzb[i] / 2.;
442 zpos = dzl[i] + dits[2];
443 gMC->Gsposp("IEPX", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
444 gMC->Gsposp("IEPX", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
447 // SILICON (layer #5 and #6)
449 gMC->Gsvolu("ISI3", "TUBE", idtmed[251], dits, 0);
450 for(i = 4; i < 6; ++i) {
451 dits[0] = rl[i] + drpla[i] + drcu[i] + drepx[i];
452 dits[1] = dits[0] + drsi[i];
453 dits[2] = dzb[i] / 2.;
454 zpos = dzl[i] + dits[2];
455 gMC->Gsposp("ISI3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
456 gMC->Gsposp("ISI3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
461 gMC->Gsvolu("ISUP", "TUBE", idtmed[274], dits, 0);
462 for(i = 0; i < 6; ++i) {
464 if (i < 5) dits[1] = rl[i+1];
467 zpos = dzl[i] + dzb[i] + dits[2];
468 gMC->Gsposp("ISUP", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
469 gMC->Gsposp("ISUP", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
472 // CABLES (HORIZONTAL)
474 gMC->Gsvolu("ICHO", "TUBE", idtmed[278], dits, 0);
475 for(i = 0; i < 6; ++i) {
477 dits[1] = dits[0] + drca;
478 dits[2] = (rzcone + TMath::Tan(acone) * (rl[i] - rl[0]) - (dzl[i]+ dzb[i] + drsu)) / 2.;
479 zpos = dzl[i - 1] + dzb[i] + drsu + dits[2];
480 gMC->Gsposp("ICHO", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
481 gMC->Gsposp("ICHO", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
483 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
490 pcits[6] = pcits[3] + TMath::Tan(acone) * (rlim - rl[0]);
491 pcits[7] = rlim - rl[0] + 3.5;
493 gMC->Gsvolu("ICMO", "PCON", idtmed[275], pcits, 9);
494 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
495 gMC->Gspos("ICMO", 1, "ITSV", 0., 0., 0., 0, "ONLY");
496 gMC->Gspos("ICMO", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
498 // DIVIDE INTO NSEC PHI-SECTIONS
500 gMC->Gsdvn("ICMD", "ICMO", nsec, 2);
501 gMC->Gsatt("ICMO", "SEEN", 0);
502 gMC->Gsatt("ICMD", "SEEN", 0);
507 gMC->Gsvolu("ICCO", "PCON", idtmed[278], pcits, 0);
508 for(i = 1; i < 6; ++i) {
509 pcits[0] = -dphi[i] / 2.;
512 dzco = TMath::Tan(acone) * (rl[i+1] - rl[i]);
514 dzco1 = zmax - (rzcone + TMath::Tan(acone) * (rl[5] - rl[0])) -2.;
515 dzco2 = (rlim - rl[5]) * TMath::Tan(acone);
516 if (rl[5] + dzco1 / TMath::Tan(acone) < rlim) {
522 pcits[3] = rzcone + TMath::Tan(acone) * (rl[i] - rl[0]);
523 pcits[4] = rl[i] - drcac[i] / TMath::Sin(acone);
525 pcits[6] = pcits[3] + dzco;
526 pcits[7] = rl[i] + dzco / TMath::Tan(acone) - drcac[i] / TMath::Sin(acone);
527 pcits[8] = rl[i] + dzco / TMath::Tan(acone);
529 gMC->Gsposp("ICCO", i, "ICMD", 0., 0., 0., 0, "ONLY", pcits, 9);
535 // CONICAL CABLES BELOW TPC
537 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
543 pcits[4] = pcits[5] - drcatpc;
545 pcits[8] = pcits[4] + (pcits[6] - pcits[3]) * TMath::Tan(acable * kDegrad);
546 pcits[7] = pcits[8] - drcatpc;
547 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
548 gMC->Gsvolu("ICCM", "PCON", idtmed[275], pcits, 9);
549 gMC->Gspos("ICCM", 1, "ALIC", 0., 0., 0., 0, "ONLY");
550 gMC->Gspos("ICCM", 2, "ALIC", 0., 0., 0., idrotm[200], "ONLY");
551 gMC->Gsdvn("ITMD", "ICCM", nsec, 2);
552 gMC->Gsatt("ITMD", "SEEN", 0);
553 gMC->Gsatt("ICCM", "SEEN", 0);
555 // NOW PLACE SEGMENTS WITH DECREASING PHI SEGMENTS INTO THE
559 gMC->Gsvolu("ITTT", "PCON", idtmed[278], pcits, 0);
562 dz = (xltpc - zend) / 9.;
563 for(i = 0; i < 9; ++i) {
564 zi = z0 + i*dz + dz / 2.;
565 ri = r0 + (zi - z0) * TMath::Tan(acable * kDegrad);
566 dphii = dphi[5] * r0 / ri;
567 pcits[0] = -dphii / 2.;
569 pcits[3] = zi - dz / 2.;
570 pcits[5] = r0 + (pcits[3] - z0) * TMath::Tan(acable * kDegrad);
571 pcits[4] = pcits[5] - drcatpc;
572 pcits[6] = zi + dz / 2.;
573 pcits[8] = r0 + (pcits[6] - z0) * TMath::Tan(acable * kDegrad);
574 pcits[7] = pcits[8] - drcatpc;
576 gMC->Gsposp("ITTT", i+1, "ITMD", 0., 0., 0., 0, "ONLY", pcits, 9);
579 // --- Outputs the geometry tree in the EUCLID/CAD format
582 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
585 //_____________________________________________________________________________
586 void AliITSv1::CreateMaterials(){
587 ////////////////////////////////////////////////////////////////////////
589 // Create ITS materials
590 // This function defines the default materials used in the Geant
591 // Monte Carlo simulations for the geometries AliITSv1 and AliITSv3.
592 // In general it is automatically replaced by
593 // the CreatMaterials routine defined in AliITSv?. Should the function
594 // CreateMaterials not exist for the geometry version you are using this
595 // one is used. See the definition found in AliITSv5 or the other routine
596 // for a complete definition.
599 Float_t awat[2] = { 1.00794,15.9994 };
600 Float_t zwat[2] = { 1.,8. };
601 Float_t wwat[2] = { 2.,1. };
602 Float_t denswat = 1.;
604 Float_t afre[2] = { 12.011,18.9984032 };
605 Float_t zfre[2] = { 6.,9. };
606 Float_t wfre[2] = { 5.,12. };
607 Float_t densfre = 1.5;
609 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
610 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
611 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
612 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
613 Float_t denscer = 3.6;
615 // 60% SiO2 , 40% G10FR4
617 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
618 Float_t zpcb[3] = { 14.,8.,8.875 };
619 Float_t wpcb[3] = { .28,.32,.4 };
620 Float_t denspcb = 1.8;
622 Float_t apoly[2] = { 12.01,1. };
623 Float_t zpoly[2] = { 6.,1. };
624 Float_t wpoly[2] = { .33,.67 };
626 Float_t zserv[4] = { 1.,6.,26.,29. };
627 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
628 Float_t wserv[4] = { .014,.086,.42,.48 };
630 Int_t isxfld = gAlice->Field()->Integ();
631 Float_t sxmgmx = gAlice->Field()->Max();
634 // --- Define the various materials for GEANT ---
636 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
638 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
639 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
640 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
641 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
643 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
644 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
645 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
646 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
647 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
649 AliMedium(0, "SPD Si$", 0, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
650 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
651 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
652 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
653 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
654 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
655 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
656 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
657 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
659 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
661 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
662 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
663 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
664 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
666 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
667 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
668 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
669 // After a call with ratios by number (negative number of elements),
670 // the ratio array is changed to the ratio by weight, so all successive
671 // calls with the same array must specify the number of elements as
673 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
674 // After a call with ratios by number (negative number of elements),
675 // the ratio array is changed to the ratio by weight, so all successive
676 // calls with the same array must specify the number of elements as
678 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
679 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
680 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
681 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
682 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
685 AliMedium(25, "SDD Si$", 25, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
686 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
687 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
688 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
689 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
690 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
691 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
692 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
693 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
694 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
695 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
696 AliMedium(36, "SDD Ceramics$",36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
697 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
699 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
701 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
702 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
703 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
704 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
706 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
707 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
708 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
709 // After a call with ratios by number (negative number of elements),
710 // the ratio array is changed to the ratio by weight, so all successive
711 // calls with the same array must specify the number of elements as
713 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
714 // After a call with ratios by number (negative number of elements),
715 // the ratio array is changed to the ratio by weight, so all successive
716 // calls with the same array must specify the number of elements as
718 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
719 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
720 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
721 // After a call with ratios by number (negative number of elements),
722 // the ratio array is changed to the ratio by weight, so all successive
723 // calls with the same array must specify the number of elements as
725 AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
726 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
728 AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
730 AliMedium(50, "SSD Si$", 50, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
731 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
732 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
733 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
734 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
735 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
736 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
737 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
738 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
739 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
740 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
741 AliMedium(61, "SSD Ceramics$",61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
742 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
743 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
745 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
747 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
749 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
750 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
751 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
752 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
753 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
754 // After a call with ratios by number (negative number of elements),
755 // the ratio array is changed to the ratio by weight, so all successive
756 // calls with the same array must specify the number of elements as
758 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
760 AliMedium(75,"GEN C$", 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);
768 //_____________________________________________________________________________
769 void AliITSv1::Init(){
770 ////////////////////////////////////////////////////////////////////////
771 // Initialise the ITS after it has been created.
772 ////////////////////////////////////////////////////////////////////////
776 fIdName = new char*[fIdN];
777 fIdSens = new Int_t[fIdN];
778 for(i=0;i<fId1N;i++) {
779 l = strlen(fId1Name[i]);
780 fIdName[i] = new char[l+1];
781 for(j=0;j<l;j++) fIdName[i][j] = fId1Name[i][j];
782 fIdName[i][l] = '\0'; // Null terminate this string.
790 //_____________________________________________________________________________
791 void AliITSv1::DrawModule(){
792 ////////////////////////////////////////////////////////////////////////
793 // Draw a shaded view of the FMD version 1.
794 ////////////////////////////////////////////////////////////////////////
796 // Set everything unseen
797 gMC->Gsatt("*", "seen", -1);
799 // Set ALIC mother visible
800 gMC->Gsatt("ALIC","SEEN",0);
802 // Set the volumes visible
803 gMC->Gsatt("ITSV","SEEN",0);
804 gMC->Gsatt("ITS1","SEEN",1);
805 gMC->Gsatt("ITS2","SEEN",1);
806 gMC->Gsatt("ITS3","SEEN",1);
807 gMC->Gsatt("ITS4","SEEN",1);
808 gMC->Gsatt("ITS5","SEEN",1);
809 gMC->Gsatt("ITS6","SEEN",1);
811 gMC->Gsatt("IPCB","SEEN",1);
812 gMC->Gsatt("ICO2","SEEN",1);
813 gMC->Gsatt("ICER","SEEN",0);
814 gMC->Gsatt("ISI2","SEEN",0);
815 gMC->Gsatt("IPLA","SEEN",0);
816 gMC->Gsatt("ICO3","SEEN",0);
817 gMC->Gsatt("IEPX","SEEN",0);
818 gMC->Gsatt("ISI3","SEEN",1);
819 gMC->Gsatt("ISUP","SEEN",0);
820 gMC->Gsatt("ICHO","SEEN",0);
821 gMC->Gsatt("ICMO","SEEN",0);
822 gMC->Gsatt("ICMD","SEEN",0);
823 gMC->Gsatt("ICCO","SEEN",1);
824 gMC->Gsatt("ICCM","SEEN",0);
825 gMC->Gsatt("ITMD","SEEN",0);
826 gMC->Gsatt("ITTT","SEEN",1);
829 gMC->Gdopt("hide", "on");
830 gMC->Gdopt("shad", "on");
831 gMC->Gsatt("*", "fill", 7);
832 gMC->SetClipBox(".");
833 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
835 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
836 gMC->Gdhead(1111, "Inner Tracking System Version 1");
837 gMC->Gdman(17, 6, "MAN");
839 //_____________________________________________________________________________
840 void AliITSv1::StepManager(){
841 ////////////////////////////////////////////////////////////////////////
842 // Called for every step in the ITS, then calles the AliITShit class
843 // creator with the information to be recoreded about that hit.
844 ////////////////////////////////////////////////////////////////////////
846 We no longer generate hits from the cource version.
850 TLorentzVector position, momentum;
851 TClonesArray &lhits = *fHits;
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;
863 // Fill hit structure.
864 if( !(gMC->TrackCharge()) ) return;
866 // Only entering charged tracks
867 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
869 id=gMC->CurrentVolOffID(1,copy);
871 id=gMC->CurrentVolOffID(2,copy);
873 } else if(id==fIdSens[1]) {
875 id=gMC->CurrentVolOffID(1,copy);
877 id=gMC->CurrentVolOffID(2,copy);
879 } else if(id==fIdSens[2]) {
882 id=gMC->CurrentVolOffID(1,copy);
884 } else if(id==fIdSens[3]) {
887 id=gMC->CurrentVolOffID(1,copy);
889 } else if(id==fIdSens[4]) {
892 id=gMC->CurrentVolOffID(1,copy);
894 } else if(id==fIdSens[5]) {
897 id=gMC->CurrentVolOffID(1,copy);
900 gMC->TrackPosition(position);
901 gMC->TrackMomentum(momentum);
909 hits[7]=gMC->TrackTime();
910 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
911 we no longer generate hit from the cource version.
915 //____________________________________________________________________________
916 void AliITSv1::Streamer(TBuffer &R__b){
917 ////////////////////////////////////////////////////////////////////////
918 // A dummy Streamer function for this class AliITSv1. By default it
919 // only streams the AliITS class as it is required. Since this class
920 // dosen't contain any "real" data to be saved, it doesn't.
921 ////////////////////////////////////////////////////////////////////////
923 printf("AliITSv1Streamer Starting\n");
924 if (R__b.IsReading()) {
925 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
926 AliITS::Streamer(R__b);
927 // This information does not need to be read. It is "hard wired"
928 // into this class via its creators.
930 //R__b.ReadArray(fId1Name);
932 R__b.WriteVersion(AliITSv1::IsA());
933 AliITS::Streamer(R__b);
934 // This information does not need to be saved. It is "hard wired"
935 // into this class via its creators.
937 //R__b.WriteArray(fId1Name, __COUNTER__);
938 } // end if R__b.IsReading()
939 printf("AliITSv1Streamer Finishing\n");