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 1.19 2000/07/10 16:07:19 fca
19 Release version of ITS code
21 Revision 1.14.2.2 2000/05/19 10:09:21 nilsen
22 fix for bug with HP and Sun unix + fix for event display in ITS-working branch
24 Revision 1.14.2.1 2000/03/04 23:45:19 nilsen
25 Fixed up the comments/documentation.
27 Revision 1.14 1999/11/25 06:52:56 fca
30 Revision 1.13.2.1 1999/11/25 06:52:21 fca
33 Revision 1.13 1999/10/27 11:16:26 fca
34 Correction of problem in geometry
36 Revision 1.12 1999/10/22 08:25:25 fca
37 remove double definition of destructors
39 Revision 1.11 1999/10/22 08:16:49 fca
40 Correct destructors, thanks to I.Hrivnacova
42 Revision 1.10 1999/10/06 19:56:50 fca
45 Revision 1.9 1999/10/05 08:05:09 fca
46 Minor corrections for uninitialised variables.
48 Revision 1.8 1999/09/29 09:24:20 fca
49 Introduction of the Copyright and cvs Log
53 ///////////////////////////////////////////////////////////////////////////////
55 // Inner Traking System version 1 //
56 // This class contains the base procedures for the Inner Tracking System //
58 // Authors: R. Barbera, A. Morsch.
62 // NOTE: THIS IS THE COARSE pre.TDR geometry of the ITS. THIS WILL NOT WORK
63 // with the geometry or module classes or any analysis classes. You are
64 // strongly encouraged to uses AliITSv5.
66 ///////////////////////////////////////////////////////////////////////////////
71 #include <TGeometry.h>
74 #include <TFile.h> // only required for Tracking function?
76 #include <TObjArray.h>
77 #include <TClonesArray.h>
84 #include "AliITShit.h"
91 //_____________________________________________________________________________
92 AliITSv1::AliITSv1() {
93 ////////////////////////////////////////////////////////////////////////
94 // Standard default constructor for the ITS version 1.
95 ////////////////////////////////////////////////////////////////////////
98 fIdName = new TString[fIdN];
105 fIdSens = new Int_t[fIdN];
106 for (Int_t i=0;i<fIdN;i++) fIdSens[i]=fIdName[i].Length();
108 //_____________________________________________________________________________
109 AliITSv1::AliITSv1(const char *name, const char *title) : AliITS(name, title){
110 ////////////////////////////////////////////////////////////////////////
111 // Standard constructor for the ITS version 1.
112 ////////////////////////////////////////////////////////////////////////
115 fIdName = new TString[fIdN];
122 fIdSens = new Int_t[fIdN];
123 for (Int_t i=0;i<fIdN;i++) fIdSens[i]=fIdName[i].Length();
126 //____________________________________________________________________________
127 AliITSv1::AliITSv1(const AliITSv1 &source){
128 ////////////////////////////////////////////////////////////////////////
129 // Copy Constructor for ITS version 1.
130 ////////////////////////////////////////////////////////////////////////
131 if(&source == this) return;
132 printf("Not allowed to copy AliITSv1\n");
135 //_____________________________________________________________________________
136 AliITSv1& AliITSv1::operator=(const AliITSv1 &source){
137 ////////////////////////////////////////////////////////////////////////
138 // Assignment operator for the ITS version 1.
139 ////////////////////////////////////////////////////////////////////////
140 if(&source == this) return *this;
141 printf("Not allowed to copy AliITSv1\n");
144 //_____________________________________________________________________________
145 AliITSv1::~AliITSv1() {
146 ////////////////////////////////////////////////////////////////////////
147 // Standard destructor for the ITS version 1.
148 ////////////////////////////////////////////////////////////////////////
151 //__________________________________________________________________________
152 void AliITSv1::BuildGeometry(){
153 ////////////////////////////////////////////////////////////////////////
154 // Geometry builder for the ITS version 1.
155 ////////////////////////////////////////////////////////////////////////
157 const int kColorITS=kYellow;
159 top = gAlice->GetGeometry()->GetNode("alice");
161 new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
163 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
164 node->SetLineColor(kColorITS);
167 new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
169 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
170 node->SetLineColor(kColorITS);
173 new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
175 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
176 node->SetLineColor(kColorITS);
179 new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
181 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
182 node->SetLineColor(kColorITS);
185 new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
187 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
188 node->SetLineColor(kColorITS);
191 new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
193 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
194 node->SetLineColor(kColorITS);
197 //_____________________________________________________________________________
198 void AliITSv1::CreateGeometry(){
199 ////////////////////////////////////////////////////////////////////////
200 // This routine defines and Creates the geometry for version 1 of the ITS.
201 ////////////////////////////////////////////////////////////////////////
203 Float_t drcer[6] = { 0.,0.,.08,.08,0.,0. }; //CERAMICS THICKNESS
204 Float_t drepx[6] = { 0.,0.,0.,0.,.5357,.5357 }; //EPOXY THICKNESS
205 Float_t drpla[6] = { 0.,0.,0.,0.,.1786,.1786 }; //PLASTIC THICKNESS
206 Float_t dzb[6] = { 0.,0.,15.,15.,4.,4. }; //LENGTH OF BOXES
207 Float_t dphi[6] = { 72.,72.,72.,72.,50.6,45. }; //COVERED PHI-RANGE FOR LAYERS 1-6
208 Float_t rl[6] = { 3.9,7.6,14.,24.,40.,45. }; //SILICON LAYERS INNER RADIUS
209 Float_t drl[6] = { .755,.755,.809,.809,.7,.7 }; //THICKNESS OF LAYERS (in % radiation length)
210 Float_t dzl[6] = { 12.67,16.91,20.85,29.15,45.11,50.975 };//HALF LENGTH OF LAYERS
211 Float_t drpcb[6] = { 0.,0.,.06,.06,0.,0. }; //PCB THICKNESS
212 Float_t drcu[6] = { 0.,0.,.0504,.0504,.0357,.0357 }; //COPPER THICKNESS
213 Float_t drsi[6] = { 0.,0.,.006,.006,.3571,.3571 }; //SILICON THICKNESS
217 Float_t rend, drcatpc, dzco, zend, dits[3], rlim, drsu, zmax;
218 Float_t zpos, dzco1, dzco2;
219 Float_t drcac[6], acone, dphii;
220 Float_t pcits[15], xltpc;
221 Float_t rzcone, rstep, r0, z0, acable, fp, dz, zi, ri;
225 Int_t *idtmed = fIdtmed->GetArray()-199;
227 // CONVERT INTO CM (RL(SI)=9.36 CM)
228 for (i = 0; i < 6; ++i) {
229 drl[i] = drl[i] / 100. * 9.36;
232 // SUPPORT ENDPLANE THICKNESS
233 drsu = 2.*0.06+1./20; // 1./20. is 1 cm of honeycomb (1/20 carbon density);
239 // CABLE THICKNESS (CONICAL CABLES CONNECTING THE LAYERS)
248 // CONE RADIUS AT 1ST LAYER
252 // FIELD CAGE HALF LENGTH
260 // PARAMETERS FOR SMALL (1/2) ITS
262 for (i = 0; i < 6; ++i) {
277 // EQUAL DISTRIBUTION INTO THE 6 LAYERS
278 rstep = drcatpc / 6.;
279 for (i = 0; i < 6; ++i) {
280 drcac[i] = (i+1) * rstep;
283 // NUMBER OF PHI SECTORS
287 // PACK IN PHI AS MUCH AS POSSIBLE
288 // NOW PACK USING THICKNESS
290 for (i = 0; i < 6; ++i) {
295 // PHI-PACKING NOT SUFFICIENT ?
297 if (dphi[i]/45 < fp) {
298 drcac[i] = drcac[i] * fp * 45/dphi[i];
303 // --- Define ghost volume containing the six layers and fill it with air
308 gMC->Gsvolu("ITSV", "TUBE", idtmed[275], dgh, 3);
310 // --- Place the ghost volume in its mother volume (ALIC) and make it
313 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
314 gMC->Gsatt("ITSV", "SEEN", 0);
316 // ITS LAYERS (SILICON)
319 dits[1] = rl[0] + drl[0];
321 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
322 gMC->Gspos("ITS1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
325 dits[1] = rl[1] + drl[1];
327 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
328 gMC->Gspos("ITS2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
331 dits[1] = rl[2] + drl[2];
333 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
334 gMC->Gspos("ITS3", 1, "ITSV", 0., 0., 0., 0, "ONLY");
337 dits[1] = rl[3] + drl[3];
339 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
340 gMC->Gspos("ITS4", 1, "ITSV", 0., 0., 0., 0, "ONLY");
343 dits[1] = rl[4] + drl[4];
345 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
346 gMC->Gspos("ITS5", 1, "ITSV", 0., 0., 0., 0, "ONLY");
349 dits[1] = rl[5] + drl[5];
351 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
352 gMC->Gspos("ITS6", 1, "ITSV", 0., 0., 0., 0, "ONLY");
356 // PCB (layer #3 and #4)
358 gMC->Gsvolu("IPCB", "TUBE", idtmed[233], dits, 0);
359 for (i = 2; i < 4; ++i) {
361 dits[1] = dits[0] + drpcb[i];
362 dits[2] = dzb[i] / 2.;
363 zpos = dzl[i] + dits[2];
364 gMC->Gsposp("IPCB", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
365 gMC->Gsposp("IPCB", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
368 // COPPER (layer #3 and #4)
370 gMC->Gsvolu("ICO2", "TUBE", idtmed[234], dits, 0);
371 for (i = 2; i < 4; ++i) {
372 dits[0] = rl[i] + drpcb[i];
373 dits[1] = dits[0] + drcu[i];
374 dits[2] = dzb[i] / 2.;
375 zpos = dzl[i] + dits[2];
376 gMC->Gsposp("ICO2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
377 gMC->Gsposp("ICO2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
380 // CERAMICS (layer #3 and #4)
382 gMC->Gsvolu("ICER", "TUBE", idtmed[235], dits, 0);
383 for (i = 2; i < 4; ++i) {
384 dits[0] = rl[i] + drpcb[i] + drcu[i];
385 dits[1] = dits[0] + drcer[i];
386 dits[2] = dzb[i] / 2.;
387 zpos = dzl[i] + dits[2];
388 gMC->Gsposp("ICER", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
389 gMC->Gsposp("ICER", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
392 // SILICON (layer #3 and #4)
394 gMC->Gsvolu("ISI2", "TUBE", idtmed[226], dits, 0);
395 for (i = 2; i < 4; ++i) {
396 dits[0] = rl[i] + drpcb[i] + drcu[i] + drcer[i];
397 dits[1] = dits[0] + drsi[i];
398 dits[2] = dzb[i] / 2.;
399 zpos = dzl[i] + dits[2];
400 gMC->Gsposp("ISI2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
401 gMC->Gsposp("ISI2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
404 // PLASTIC (G10FR4) (layer #5 and #6)
406 gMC->Gsvolu("IPLA", "TUBE", idtmed[262], dits, 0);
407 for (i = 4; i < 6; ++i) {
409 dits[1] = dits[0] + drpla[i];
410 dits[2] = dzb[i] / 2.;
411 zpos = dzl[i] + dits[2];
412 gMC->Gsposp("IPLA", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
413 gMC->Gsposp("IPLA", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
416 // COPPER (layer #5 and #6)
418 gMC->Gsvolu("ICO3", "TUBE", idtmed[259], dits, 0);
419 for (i = 4; i < 6; ++i) {
420 dits[0] = rl[i] + drpla[i];
421 dits[1] = dits[0] + drcu[i];
422 dits[2] = dzb[i] / 2.;
423 zpos = dzl[i] + dits[2];
424 gMC->Gsposp("ICO3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
425 gMC->Gsposp("ICO3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
428 // EPOXY (layer #5 and #6)
430 gMC->Gsvolu("IEPX", "TUBE", idtmed[262], dits, 0);
431 for (i = 4; i < 6; ++i) {
432 dits[0] = rl[i] + drpla[i] + drcu[i];
433 dits[1] = dits[0] + drepx[i];
434 dits[2] = dzb[i] / 2.;
435 zpos = dzl[i] + dits[2];
436 gMC->Gsposp("IEPX", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
437 gMC->Gsposp("IEPX", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
440 // SILICON (layer #5 and #6)
442 gMC->Gsvolu("ISI3", "TUBE", idtmed[251], dits, 0);
443 for (i = 4; i < 6; ++i) {
444 dits[0] = rl[i] + drpla[i] + drcu[i] + drepx[i];
445 dits[1] = dits[0] + drsi[i];
446 dits[2] = dzb[i] / 2.;
447 zpos = dzl[i] + dits[2];
448 gMC->Gsposp("ISI3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
449 gMC->Gsposp("ISI3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
454 gMC->Gsvolu("ISUP", "TUBE", idtmed[274], dits, 0);
455 for (i = 0; i < 6; ++i) {
457 if (i < 5) dits[1] = rl[i+1];
460 zpos = dzl[i] + dzb[i] + dits[2];
461 gMC->Gsposp("ISUP", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
462 gMC->Gsposp("ISUP", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
465 // CABLES (HORIZONTAL)
467 gMC->Gsvolu("ICHO", "TUBE", idtmed[278], dits, 0);
468 for (i = 0; i < 6; ++i) {
470 dits[1] = dits[0] + drca;
471 dits[2] = (rzcone + TMath::Tan(acone) * (rl[i] - rl[0]) - (dzl[i]+ dzb[i] + drsu)) / 2.;
472 zpos = dzl[i - 1] + dzb[i] + drsu + dits[2];
473 gMC->Gsposp("ICHO", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
474 gMC->Gsposp("ICHO", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
476 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
483 pcits[6] = pcits[3] + TMath::Tan(acone) * (rlim - rl[0]);
484 pcits[7] = rlim - rl[0] + 3.5;
486 gMC->Gsvolu("ICMO", "PCON", idtmed[275], pcits, 9);
487 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
488 gMC->Gspos("ICMO", 1, "ITSV", 0., 0., 0., 0, "ONLY");
489 gMC->Gspos("ICMO", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
491 // DIVIDE INTO NSEC PHI-SECTIONS
493 gMC->Gsdvn("ICMD", "ICMO", nsec, 2);
494 gMC->Gsatt("ICMO", "SEEN", 0);
495 gMC->Gsatt("ICMD", "SEEN", 0);
500 gMC->Gsvolu("ICCO", "PCON", idtmed[278], pcits, 0);
501 for (i = 1; i < 6; ++i) {
502 pcits[0] = -dphi[i] / 2.;
505 dzco = TMath::Tan(acone) * (rl[i+1] - rl[i]);
507 dzco1 = zmax - (rzcone + TMath::Tan(acone) * (rl[5] - rl[0])) -2.;
508 dzco2 = (rlim - rl[5]) * TMath::Tan(acone);
509 if (rl[5] + dzco1 / TMath::Tan(acone) < rlim) {
515 pcits[3] = rzcone + TMath::Tan(acone) * (rl[i] - rl[0]);
516 pcits[4] = rl[i] - drcac[i] / TMath::Sin(acone);
518 pcits[6] = pcits[3] + dzco;
519 pcits[7] = rl[i] + dzco / TMath::Tan(acone) - drcac[i] / TMath::Sin(acone);
520 pcits[8] = rl[i] + dzco / TMath::Tan(acone);
522 gMC->Gsposp("ICCO", i, "ICMD", 0., 0., 0., 0, "ONLY", pcits, 9);
528 // CONICAL CABLES BELOW TPC
530 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
536 pcits[4] = pcits[5] - drcatpc;
538 pcits[8] = pcits[4] + (pcits[6] - pcits[3]) * TMath::Tan(acable * kDegrad);
539 pcits[7] = pcits[8] - drcatpc;
540 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
541 gMC->Gsvolu("ICCM", "PCON", idtmed[275], pcits, 9);
542 gMC->Gspos("ICCM", 1, "ALIC", 0., 0., 0., 0, "ONLY");
543 gMC->Gspos("ICCM", 2, "ALIC", 0., 0., 0., idrotm[200], "ONLY");
544 gMC->Gsdvn("ITMD", "ICCM", nsec, 2);
545 gMC->Gsatt("ITMD", "SEEN", 0);
546 gMC->Gsatt("ICCM", "SEEN", 0);
548 // NOW PLACE SEGMENTS WITH DECREASING PHI SEGMENTS INTO THE
552 gMC->Gsvolu("ITTT", "PCON", idtmed[278], pcits, 0);
555 dz = (xltpc - zend) / 9.;
556 for (i = 0; i < 9; ++i) {
557 zi = z0 + i*dz + dz / 2.;
558 ri = r0 + (zi - z0) * TMath::Tan(acable * kDegrad);
559 dphii = dphi[5] * r0 / ri;
560 pcits[0] = -dphii / 2.;
562 pcits[3] = zi - dz / 2.;
563 pcits[5] = r0 + (pcits[3] - z0) * TMath::Tan(acable * kDegrad);
564 pcits[4] = pcits[5] - drcatpc;
565 pcits[6] = zi + dz / 2.;
566 pcits[8] = r0 + (pcits[6] - z0) * TMath::Tan(acable * kDegrad);
567 pcits[7] = pcits[8] - drcatpc;
569 gMC->Gsposp("ITTT", i+1, "ITMD", 0., 0., 0., 0, "ONLY", pcits, 9);
572 // --- Outputs the geometry tree in the EUCLID/CAD format
575 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
578 //_____________________________________________________________________________
579 void AliITSv1::CreateMaterials(){
580 ////////////////////////////////////////////////////////////////////////
582 // Create ITS materials
583 // This function defines the default materials used in the Geant
584 // Monte Carlo simulations for the geometries AliITSv1 and AliITSv3.
585 // In general it is automatically replaced by
586 // the CreatMaterials routine defined in AliITSv?. Should the function
587 // CreateMaterials not exist for the geometry version you are using this
588 // one is used. See the definition found in AliITSv5 or the other routine
589 // for a complete definition.
592 Float_t awat[2] = { 1.00794,15.9994 };
593 Float_t zwat[2] = { 1.,8. };
594 Float_t wwat[2] = { 2.,1. };
595 Float_t denswat = 1.;
597 Float_t afre[2] = { 12.011,18.9984032 };
598 Float_t zfre[2] = { 6.,9. };
599 Float_t wfre[2] = { 5.,12. };
600 Float_t densfre = 1.5;
602 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
603 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
604 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
605 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
606 Float_t denscer = 3.6;
608 // 60% SiO2 , 40% G10FR4
610 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
611 Float_t zpcb[3] = { 14.,8.,8.875 };
612 Float_t wpcb[3] = { .28,.32,.4 };
613 Float_t denspcb = 1.8;
615 Float_t apoly[2] = { 12.01,1. };
616 Float_t zpoly[2] = { 6.,1. };
617 Float_t wpoly[2] = { .33,.67 };
619 Float_t zserv[4] = { 1.,6.,26.,29. };
620 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
621 Float_t wserv[4] = { .014,.086,.42,.48 };
623 Int_t isxfld = gAlice->Field()->Integ();
624 Float_t sxmgmx = gAlice->Field()->Max();
627 // --- Define the various materials for GEANT ---
629 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
631 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
632 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
633 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
634 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
636 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
637 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
638 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
639 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
640 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
642 AliMedium(0, "SPD Si$", 0, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
643 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
644 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
645 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
646 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
647 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
648 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
649 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
650 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
652 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
654 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
655 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
656 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
657 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
659 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
660 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
661 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
662 // After a call with ratios by number (negative number of elements),
663 // the ratio array is changed to the ratio by weight, so all successive
664 // calls with the same array must specify the number of elements as
666 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
667 // After a call with ratios by number (negative number of elements),
668 // the ratio array is changed to the ratio by weight, so all successive
669 // calls with the same array must specify the number of elements as
671 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
672 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
673 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
674 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
675 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
678 AliMedium(25, "SDD Si$", 25, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
679 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
680 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
681 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
682 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
683 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
684 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
685 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
686 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
687 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
688 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
689 AliMedium(36, "SDD Ceramics$",36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
690 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
692 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
694 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
695 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
696 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
697 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
699 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
700 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
701 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
702 // After a call with ratios by number (negative number of elements),
703 // the ratio array is changed to the ratio by weight, so all successive
704 // calls with the same array must specify the number of elements as
706 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
707 // After a call with ratios by number (negative number of elements),
708 // the ratio array is changed to the ratio by weight, so all successive
709 // calls with the same array must specify the number of elements as
711 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
712 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
713 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
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( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
719 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
721 AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
723 AliMedium(50, "SSD Si$", 50, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
724 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
725 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
726 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
727 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
728 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
729 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
730 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
731 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
732 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
733 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
734 AliMedium(61, "SSD Ceramics$",61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
735 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
736 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
738 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
740 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
742 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
743 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
744 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
745 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
746 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
747 // After a call with ratios by number (negative number of elements),
748 // the ratio array is changed to the ratio by weight, so all successive
749 // calls with the same array must specify the number of elements as
751 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
753 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
754 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
755 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
756 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
757 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
758 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
759 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
761 //_____________________________________________________________________________
762 void AliITSv1::Init(){
763 ////////////////////////////////////////////////////////////////////////
764 // Initialise the ITS after it has been created.
765 ////////////////////////////////////////////////////////////////////////
773 //_____________________________________________________________________________
774 void AliITSv1::DrawModule(){
775 ////////////////////////////////////////////////////////////////////////
776 // Draw a shaded view of the FMD version 1.
777 ////////////////////////////////////////////////////////////////////////
779 // Set everything unseen
780 gMC->Gsatt("*", "seen", -1);
782 // Set ALIC mother visible
783 gMC->Gsatt("ALIC","SEEN",0);
785 // Set the volumes visible
786 gMC->Gsatt("ITSV","SEEN",0);
787 gMC->Gsatt("ITS1","SEEN",1);
788 gMC->Gsatt("ITS2","SEEN",1);
789 gMC->Gsatt("ITS3","SEEN",1);
790 gMC->Gsatt("ITS4","SEEN",1);
791 gMC->Gsatt("ITS5","SEEN",1);
792 gMC->Gsatt("ITS6","SEEN",1);
794 gMC->Gsatt("IPCB","SEEN",1);
795 gMC->Gsatt("ICO2","SEEN",1);
796 gMC->Gsatt("ICER","SEEN",0);
797 gMC->Gsatt("ISI2","SEEN",0);
798 gMC->Gsatt("IPLA","SEEN",0);
799 gMC->Gsatt("ICO3","SEEN",0);
800 gMC->Gsatt("IEPX","SEEN",0);
801 gMC->Gsatt("ISI3","SEEN",1);
802 gMC->Gsatt("ISUP","SEEN",0);
803 gMC->Gsatt("ICHO","SEEN",0);
804 gMC->Gsatt("ICMO","SEEN",0);
805 gMC->Gsatt("ICMD","SEEN",0);
806 gMC->Gsatt("ICCO","SEEN",1);
807 gMC->Gsatt("ICCM","SEEN",0);
808 gMC->Gsatt("ITMD","SEEN",0);
809 gMC->Gsatt("ITTT","SEEN",1);
812 gMC->Gdopt("hide", "on");
813 gMC->Gdopt("shad", "on");
814 gMC->Gsatt("*", "fill", 7);
815 gMC->SetClipBox(".");
816 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
818 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
819 gMC->Gdhead(1111, "Inner Tracking System Version 1");
820 gMC->Gdman(17, 6, "MAN");
822 //_____________________________________________________________________________
823 void AliITSv1::StepManager(){
824 ////////////////////////////////////////////////////////////////////////
825 // Called for every step in the ITS, then calles the AliITShit class
826 // creator with the information to be recoreded about that hit.
827 ////////////////////////////////////////////////////////////////////////
831 TLorentzVector position, momentum;
832 TClonesArray &lhits = *fHits;
836 if(gMC->IsTrackInside()) vol[3] += 1;
837 if(gMC->IsTrackEntering()) vol[3] += 2;
838 if(gMC->IsTrackExiting()) vol[3] += 4;
839 if(gMC->IsTrackOut()) vol[3] += 8;
840 if(gMC->IsTrackDisappeared()) vol[3] += 16;
841 if(gMC->IsTrackStop()) vol[3] += 32;
842 if(gMC->IsTrackAlive()) vol[3] += 64;
844 // Fill hit structure.
845 if( !(gMC->TrackCharge()) ) return;
847 // Only entering charged tracks
848 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
850 id=gMC->CurrentVolOffID(1,copy);
852 id=gMC->CurrentVolOffID(2,copy);
854 } else if(id==fIdSens[1]) {
856 id=gMC->CurrentVolOffID(1,copy);
858 id=gMC->CurrentVolOffID(2,copy);
860 } else if(id==fIdSens[2]) {
863 id=gMC->CurrentVolOffID(1,copy);
865 } else if(id==fIdSens[3]) {
868 id=gMC->CurrentVolOffID(1,copy);
870 } else if(id==fIdSens[4]) {
873 id=gMC->CurrentVolOffID(1,copy);
875 } else if(id==fIdSens[5]) {
878 id=gMC->CurrentVolOffID(1,copy);
881 gMC->TrackPosition(position);
882 gMC->TrackMomentum(momentum);
890 hits[7]=gMC->TrackTime();
891 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
893 //____________________________________________________________________________
894 void AliITSv1::Streamer(TBuffer &R__b){
895 ////////////////////////////////////////////////////////////////////////
896 // A dummy Streamer function for this class AliITSv1. By default it
897 // only streams the AliITS class as it is required. Since this class
898 // dosen't contain any "real" data to be saved, it doesn't.
899 ////////////////////////////////////////////////////////////////////////
901 if (R__b.IsReading()) {
902 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
903 AliITS::Streamer(R__b);
905 R__b.WriteVersion(AliITSv1::IsA());
906 AliITS::Streamer(R__b);
907 } // end if R__b.IsReading()