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 1 //
21 // This class contains the base procedures for the Inner Tracking System //
23 // Authors: R. Barbera, A. Morsch.
27 // NOTE: THIS IS THE COARSE pre.TDR geometry of the ITS. THIS WILL NOT WORK
28 // with the geometry or module classes or any analysis classes. You are
29 // strongly encouraged to uses AliITSv5.
31 ///////////////////////////////////////////////////////////////////////////////
34 #include <TClonesArray.h>
35 #include <TFile.h> // only required for Tracking function?
36 #include <TGeometry.h>
39 #include <TObjArray.h>
40 #include <TObjString.h>
44 #include <TVirtualMC.h>
47 #include "AliITShit.h"
54 //_____________________________________________________________________________
55 AliITSv1::AliITSv1() {
56 ////////////////////////////////////////////////////////////////////////
57 // Standard default constructor for the ITS version 1.
58 ////////////////////////////////////////////////////////////////////////
66 //_____________________________________________________________________________
67 AliITSv1::AliITSv1(const char *name, const char *title) : AliITS(name, title){
68 ////////////////////////////////////////////////////////////////////////
69 // Standard constructor for the ITS version 1.
70 ////////////////////////////////////////////////////////////////////////
74 // TObjArray of TObjStrings
75 fIdName = new TObjArray(fIdN);
76 fIdName->AddAt(new TObjString("ITS1"),0);
77 fIdName->AddAt(new TObjString("ITS2"),1);
78 fIdName->AddAt(new TObjString("ITS3"),2);
79 fIdName->AddAt(new TObjString("ITS4"),3);
80 fIdName->AddAt(new TObjString("ITS5"),4);
81 fIdName->AddAt(new TObjString("ITS6"),5);
84 fIdName = new TString[fIdN];
91 fIdSens = new Int_t[fIdN];
92 for (Int_t i=0;i<fIdN;i++) fIdSens[i] = 0;
97 //____________________________________________________________________________
98 AliITSv1::AliITSv1(const AliITSv1 &source){
99 ////////////////////////////////////////////////////////////////////////
100 // Copy Constructor for ITS version 1.
101 ////////////////////////////////////////////////////////////////////////
102 if(&source == this) return;
103 printf("Not allowed to copy AliITSv1\n");
106 //_____________________________________________________________________________
107 AliITSv1& AliITSv1::operator=(const AliITSv1 &source){
108 ////////////////////////////////////////////////////////////////////////
109 // Assignment operator for the ITS version 1.
110 ////////////////////////////////////////////////////////////////////////
111 if(&source == this) return *this;
112 printf("Not allowed to copy AliITSv1\n");
115 //_____________________________________________________________________________
116 AliITSv1::~AliITSv1() {
117 ////////////////////////////////////////////////////////////////////////
118 // Standard destructor for the ITS version 1.
119 ////////////////////////////////////////////////////////////////////////
122 //__________________________________________________________________________
123 void AliITSv1::BuildGeometry(){
124 ////////////////////////////////////////////////////////////////////////
125 // Geometry builder for the ITS version 1.
126 ////////////////////////////////////////////////////////////////////////
128 const int kColorITS=kYellow;
130 top = gAlice->GetGeometry()->GetNode("alice");
132 new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
134 node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
135 node->SetLineColor(kColorITS);
138 new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
140 node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
141 node->SetLineColor(kColorITS);
144 new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
146 node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
147 node->SetLineColor(kColorITS);
150 new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
152 node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
153 node->SetLineColor(kColorITS);
156 new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
158 node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
159 node->SetLineColor(kColorITS);
162 new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
164 node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
165 node->SetLineColor(kColorITS);
168 //_____________________________________________________________________________
169 void AliITSv1::CreateGeometry(){
170 ////////////////////////////////////////////////////////////////////////
171 // This routine defines and Creates the geometry for version 1 of the ITS.
172 ////////////////////////////////////////////////////////////////////////
174 Float_t drcer[6] = { 0.,0.,.08,.08,0.,0. }; //CERAMICS THICKNESS
175 Float_t drepx[6] = { 0.,0.,0.,0.,.5357,.5357 }; //EPOXY THICKNESS
176 Float_t drpla[6] = { 0.,0.,0.,0.,.1786,.1786 }; //PLASTIC THICKNESS
177 Float_t dzb[6] = { 0.,0.,15.,15.,4.,4. }; //LENGTH OF BOXES
178 Float_t dphi[6] = { 72.,72.,72.,72.,50.6,45. }; //COVERED PHI-RANGE FOR LAYERS 1-6
179 Float_t rl[6] = { 3.9,7.6,14.,24.,40.,45. }; //SILICON LAYERS INNER RADIUS
180 Float_t drl[6] = { .755,.755,.809,.809,.7,.7 }; //THICKNESS OF LAYERS (in % radiation length)
181 Float_t dzl[6] = { 12.67,16.91,20.85,29.15,45.11,50.975 };//HALF LENGTH OF LAYERS
182 Float_t drpcb[6] = { 0.,0.,.06,.06,0.,0. }; //PCB THICKNESS
183 Float_t drcu[6] = { 0.,0.,.0504,.0504,.0357,.0357 }; //COPPER THICKNESS
184 Float_t drsi[6] = { 0.,0.,.006,.006,.3571,.3571 }; //SILICON THICKNESS
188 Float_t rend, drcatpc, dzco, zend, dits[3], rlim, drsu, zmax;
189 Float_t zpos, dzco1, dzco2;
190 Float_t drcac[6], acone, dphii;
191 Float_t pcits[15], xltpc;
192 Float_t rzcone, rstep, r0, z0, acable, fp, dz, zi, ri;
196 Int_t *idtmed = fIdtmed->GetArray()-199;
198 // CONVERT INTO CM (RL(SI)=9.36 CM)
199 for (i = 0; i < 6; ++i) {
200 drl[i] = drl[i] / 100. * 9.36;
203 // SUPPORT ENDPLANE THICKNESS
204 drsu = 2.*0.06+1./20; // 1./20. is 1 cm of honeycomb (1/20 carbon density);
210 // CABLE THICKNESS (CONICAL CABLES CONNECTING THE LAYERS)
219 // CONE RADIUS AT 1ST LAYER
223 // FIELD CAGE HALF LENGTH
231 // PARAMETERS FOR SMALL (1/2) ITS
233 for (i = 0; i < 6; ++i) {
248 // EQUAL DISTRIBUTION INTO THE 6 LAYERS
249 rstep = drcatpc / 6.;
250 for (i = 0; i < 6; ++i) {
251 drcac[i] = (i+1) * rstep;
254 // NUMBER OF PHI SECTORS
258 // PACK IN PHI AS MUCH AS POSSIBLE
259 // NOW PACK USING THICKNESS
261 for (i = 0; i < 6; ++i) {
266 // PHI-PACKING NOT SUFFICIENT ?
268 if (dphi[i]/45 < fp) {
269 drcac[i] = drcac[i] * fp * 45/dphi[i];
274 // --- Define ghost volume containing the six layers and fill it with air
279 gMC->Gsvolu("ITSV", "TUBE", idtmed[275], dgh, 3);
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);
287 // ITS LAYERS (SILICON)
290 dits[1] = rl[0] + drl[0];
292 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
293 gMC->Gspos("ITS1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
296 dits[1] = rl[1] + drl[1];
298 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
299 gMC->Gspos("ITS2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
302 dits[1] = rl[2] + drl[2];
304 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
305 gMC->Gspos("ITS3", 1, "ITSV", 0., 0., 0., 0, "ONLY");
308 dits[1] = rl[3] + drl[3];
310 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
311 gMC->Gspos("ITS4", 1, "ITSV", 0., 0., 0., 0, "ONLY");
314 dits[1] = rl[4] + drl[4];
316 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
317 gMC->Gspos("ITS5", 1, "ITSV", 0., 0., 0., 0, "ONLY");
320 dits[1] = rl[5] + drl[5];
322 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
323 gMC->Gspos("ITS6", 1, "ITSV", 0., 0., 0., 0, "ONLY");
327 // PCB (layer #3 and #4)
329 gMC->Gsvolu("IPCB", "TUBE", idtmed[233], dits, 0);
330 for (i = 2; i < 4; ++i) {
332 dits[1] = dits[0] + drpcb[i];
333 dits[2] = dzb[i] / 2.;
334 zpos = dzl[i] + dits[2];
335 gMC->Gsposp("IPCB", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
336 gMC->Gsposp("IPCB", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
339 // COPPER (layer #3 and #4)
341 gMC->Gsvolu("ICO2", "TUBE", idtmed[234], dits, 0);
342 for (i = 2; i < 4; ++i) {
343 dits[0] = rl[i] + drpcb[i];
344 dits[1] = dits[0] + drcu[i];
345 dits[2] = dzb[i] / 2.;
346 zpos = dzl[i] + dits[2];
347 gMC->Gsposp("ICO2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
348 gMC->Gsposp("ICO2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
351 // CERAMICS (layer #3 and #4)
353 gMC->Gsvolu("ICER", "TUBE", idtmed[235], dits, 0);
354 for (i = 2; i < 4; ++i) {
355 dits[0] = rl[i] + drpcb[i] + drcu[i];
356 dits[1] = dits[0] + drcer[i];
357 dits[2] = dzb[i] / 2.;
358 zpos = dzl[i] + dits[2];
359 gMC->Gsposp("ICER", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
360 gMC->Gsposp("ICER", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
363 // SILICON (layer #3 and #4)
365 gMC->Gsvolu("ISI2", "TUBE", idtmed[226], dits, 0);
366 for (i = 2; i < 4; ++i) {
367 dits[0] = rl[i] + drpcb[i] + drcu[i] + drcer[i];
368 dits[1] = dits[0] + drsi[i];
369 dits[2] = dzb[i] / 2.;
370 zpos = dzl[i] + dits[2];
371 gMC->Gsposp("ISI2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
372 gMC->Gsposp("ISI2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
375 // PLASTIC (G10FR4) (layer #5 and #6)
377 gMC->Gsvolu("IPLA", "TUBE", idtmed[262], dits, 0);
378 for (i = 4; i < 6; ++i) {
380 dits[1] = dits[0] + drpla[i];
381 dits[2] = dzb[i] / 2.;
382 zpos = dzl[i] + dits[2];
383 gMC->Gsposp("IPLA", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
384 gMC->Gsposp("IPLA", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
387 // COPPER (layer #5 and #6)
389 gMC->Gsvolu("ICO3", "TUBE", idtmed[259], dits, 0);
390 for (i = 4; i < 6; ++i) {
391 dits[0] = rl[i] + drpla[i];
392 dits[1] = dits[0] + drcu[i];
393 dits[2] = dzb[i] / 2.;
394 zpos = dzl[i] + dits[2];
395 gMC->Gsposp("ICO3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
396 gMC->Gsposp("ICO3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
399 // EPOXY (layer #5 and #6)
401 gMC->Gsvolu("IEPX", "TUBE", idtmed[262], dits, 0);
402 for (i = 4; i < 6; ++i) {
403 dits[0] = rl[i] + drpla[i] + drcu[i];
404 dits[1] = dits[0] + drepx[i];
405 dits[2] = dzb[i] / 2.;
406 zpos = dzl[i] + dits[2];
407 gMC->Gsposp("IEPX", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
408 gMC->Gsposp("IEPX", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
411 // SILICON (layer #5 and #6)
413 gMC->Gsvolu("ISI3", "TUBE", idtmed[251], dits, 0);
414 for (i = 4; i < 6; ++i) {
415 dits[0] = rl[i] + drpla[i] + drcu[i] + drepx[i];
416 dits[1] = dits[0] + drsi[i];
417 dits[2] = dzb[i] / 2.;
418 zpos = dzl[i] + dits[2];
419 gMC->Gsposp("ISI3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
420 gMC->Gsposp("ISI3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
425 gMC->Gsvolu("ISUP", "TUBE", idtmed[274], dits, 0);
426 for (i = 0; i < 6; ++i) {
428 if (i < 5) dits[1] = rl[i+1];
431 zpos = dzl[i] + dzb[i] + dits[2];
432 gMC->Gsposp("ISUP", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
433 gMC->Gsposp("ISUP", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
436 // CABLES (HORIZONTAL)
438 gMC->Gsvolu("ICHO", "TUBE", idtmed[278], dits, 0);
439 for (i = 0; i < 6; ++i) {
441 dits[1] = dits[0] + drca;
442 dits[2] = (rzcone + TMath::Tan(acone) * (rl[i] - rl[0]) - (dzl[i]+ dzb[i] + drsu)) / 2.;
443 zpos = dzl[i - 1] + dzb[i] + drsu + dits[2];
444 gMC->Gsposp("ICHO", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
445 gMC->Gsposp("ICHO", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
447 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
454 pcits[6] = pcits[3] + TMath::Tan(acone) * (rlim - rl[0]);
455 pcits[7] = rlim - rl[0] + 3.5;
457 gMC->Gsvolu("ICMO", "PCON", idtmed[275], pcits, 9);
458 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
459 gMC->Gspos("ICMO", 1, "ITSV", 0., 0., 0., 0, "ONLY");
460 gMC->Gspos("ICMO", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
462 // DIVIDE INTO NSEC PHI-SECTIONS
464 gMC->Gsdvn("ICMD", "ICMO", nsec, 2);
465 gMC->Gsatt("ICMO", "SEEN", 0);
466 gMC->Gsatt("ICMD", "SEEN", 0);
471 gMC->Gsvolu("ICCO", "PCON", idtmed[278], pcits, 0);
472 for (i = 1; i < 6; ++i) {
473 pcits[0] = -dphi[i] / 2.;
476 dzco = TMath::Tan(acone) * (rl[i+1] - rl[i]);
478 dzco1 = zmax - (rzcone + TMath::Tan(acone) * (rl[5] - rl[0])) -2.;
479 dzco2 = (rlim - rl[5]) * TMath::Tan(acone);
480 if (rl[5] + dzco1 / TMath::Tan(acone) < rlim) {
486 pcits[3] = rzcone + TMath::Tan(acone) * (rl[i] - rl[0]);
487 pcits[4] = rl[i] - drcac[i] / TMath::Sin(acone);
489 pcits[6] = pcits[3] + dzco;
490 pcits[7] = rl[i] + dzco / TMath::Tan(acone) - drcac[i] / TMath::Sin(acone);
491 pcits[8] = rl[i] + dzco / TMath::Tan(acone);
493 gMC->Gsposp("ICCO", i, "ICMD", 0., 0., 0., 0, "ONLY", pcits, 9);
499 // CONICAL CABLES BELOW TPC
501 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
507 pcits[4] = pcits[5] - drcatpc;
509 pcits[8] = pcits[4] + (pcits[6] - pcits[3]) * TMath::Tan(acable * kDegrad);
510 pcits[7] = pcits[8] - drcatpc;
511 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
512 gMC->Gsvolu("ICCM", "PCON", idtmed[275], pcits, 9);
513 gMC->Gspos("ICCM", 1, "ALIC", 0., 0., 0., 0, "ONLY");
514 gMC->Gspos("ICCM", 2, "ALIC", 0., 0., 0., idrotm[200], "ONLY");
515 gMC->Gsdvn("ITMD", "ICCM", nsec, 2);
516 gMC->Gsatt("ITMD", "SEEN", 0);
517 gMC->Gsatt("ICCM", "SEEN", 0);
519 // NOW PLACE SEGMENTS WITH DECREASING PHI SEGMENTS INTO THE
523 gMC->Gsvolu("ITTT", "PCON", idtmed[278], pcits, 0);
526 dz = (xltpc - zend) / 9.;
527 for (i = 0; i < 9; ++i) {
528 zi = z0 + i*dz + dz / 2.;
529 ri = r0 + (zi - z0) * TMath::Tan(acable * kDegrad);
530 dphii = dphi[5] * r0 / ri;
531 pcits[0] = -dphii / 2.;
533 pcits[3] = zi - dz / 2.;
534 pcits[5] = r0 + (pcits[3] - z0) * TMath::Tan(acable * kDegrad);
535 pcits[4] = pcits[5] - drcatpc;
536 pcits[6] = zi + dz / 2.;
537 pcits[8] = r0 + (pcits[6] - z0) * TMath::Tan(acable * kDegrad);
538 pcits[7] = pcits[8] - drcatpc;
540 gMC->Gsposp("ITTT", i+1, "ITMD", 0., 0., 0., 0, "ONLY", pcits, 9);
543 // --- Outputs the geometry tree in the EUCLID/CAD format
546 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
549 //_____________________________________________________________________________
550 void AliITSv1::CreateMaterials(){
551 ////////////////////////////////////////////////////////////////////////
553 // Create ITS materials
554 // This function defines the default materials used in the Geant
555 // Monte Carlo simulations for the geometries AliITSv1 and AliITSv3.
556 // In general it is automatically replaced by
557 // the CreatMaterials routine defined in AliITSv?. Should the function
558 // CreateMaterials not exist for the geometry version you are using this
559 // one is used. See the definition found in AliITSv5 or the other routine
560 // for a complete definition.
563 Float_t awat[2] = { 1.00794,15.9994 };
564 Float_t zwat[2] = { 1.,8. };
565 Float_t wwat[2] = { 2.,1. };
566 Float_t denswat = 1.;
568 Float_t afre[2] = { 12.011,18.9984032 };
569 Float_t zfre[2] = { 6.,9. };
570 Float_t wfre[2] = { 5.,12. };
571 Float_t densfre = 1.5;
573 // 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
574 Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
575 Float_t zcer[5] = { 13.,8.,14.,25., 24. };
576 Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
577 Float_t denscer = 3.6;
579 // 60% SiO2 , 40% G10FR4
581 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
582 Float_t zpcb[3] = { 14.,8.,8.875 };
583 Float_t wpcb[3] = { .28,.32,.4 };
584 Float_t denspcb = 1.8;
586 Float_t apoly[2] = { 12.01,1. };
587 Float_t zpoly[2] = { 6.,1. };
588 Float_t wpoly[2] = { .33,.67 };
590 Float_t zserv[4] = { 1.,6.,26.,29. };
591 Float_t aserv[4] = { 1.,12.,55.8,63.5 };
592 Float_t wserv[4] = { .014,.086,.42,.48 };
594 Int_t isxfld = gAlice->Field()->Integ();
595 Float_t sxmgmx = gAlice->Field()->Max();
598 // --- Define the various materials for GEANT ---
600 // 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
602 AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
603 AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
604 AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
605 AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
607 AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
608 AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
609 AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
610 AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
611 AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
613 AliMedium(0, "SPD Si$", 0, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
614 AliMedium(1, "SPD Si chip$", 1, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
615 AliMedium(2, "SPD Si bus$", 2, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
616 AliMedium(3, "SPD C$", 3, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
617 AliMedium(4, "SPD Air$", 4, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
618 AliMedium(5, "SPD Vacuum$", 5, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
619 AliMedium(6, "SPD Al$", 6, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
620 AliMedium(7, "SPD Water $", 7, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
621 AliMedium(8, "SPD Freon$", 8, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
623 // 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
625 AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
626 AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
627 AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
628 AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
630 AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
631 AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
632 AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
633 // After a call with ratios by number (negative number of elements),
634 // the ratio array is changed to the ratio by weight, so all successive
635 // calls with the same array must specify the number of elements as
637 AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
638 // After a call with ratios by number (negative number of elements),
639 // the ratio array is changed to the ratio by weight, so all successive
640 // calls with the same array must specify the number of elements as
642 AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
643 AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
644 AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
645 AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
646 AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
649 AliMedium(25, "SDD Si$", 25, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
650 AliMedium(26, "SDD Si chip$", 26, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
651 AliMedium(27, "SDD Si bus$", 27, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
652 AliMedium(28, "SDD C$", 28, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
653 AliMedium(29, "SDD Air$", 29, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
654 AliMedium(30, "SDD Vacuum$", 30, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
655 AliMedium(31, "SDD Al$", 31, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
656 AliMedium(32, "SDD Water $", 32, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
657 AliMedium(33, "SDD Freon$", 33, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
658 AliMedium(34, "SDD PCB$", 34, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
659 AliMedium(35, "SDD Copper$", 35, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
660 AliMedium(36, "SDD Ceramics$",36, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
661 AliMedium(37, "SDD Kapton$", 37, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
663 // 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
665 AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
666 AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
667 AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
668 AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
670 AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
671 AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
672 AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
673 // After a call with ratios by number (negative number of elements),
674 // the ratio array is changed to the ratio by weight, so all successive
675 // calls with the same array must specify the number of elements as
677 AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
678 // After a call with ratios by number (negative number of elements),
679 // the ratio array is changed to the ratio by weight, so all successive
680 // calls with the same array must specify the number of elements as
682 AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
683 AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
684 AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
685 // After a call with ratios by number (negative number of elements),
686 // the ratio array is changed to the ratio by weight, so all successive
687 // calls with the same array must specify the number of elements as
689 AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
690 AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
692 AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
694 AliMedium(50, "SSD Si$", 50, 1,isxfld,sxmgmx, 10., .01, .1, .003, .003);
695 AliMedium(51, "SSD Si chip$", 51, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
696 AliMedium(52, "SSD Si bus$", 52, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
697 AliMedium(53, "SSD C$", 53, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
698 AliMedium(54, "SSD Air$", 54, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
699 AliMedium(55, "SSD Vacuum$", 55, 0,isxfld,sxmgmx, 10.,1.00, .1, .100,10.00);
700 AliMedium(56, "SSD Al$", 56, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
701 AliMedium(57, "SSD Water $", 57, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
702 AliMedium(58, "SSD Freon$", 58, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
703 AliMedium(59, "SSD PCB$", 59, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
704 AliMedium(60, "SSD Copper$", 60, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
705 AliMedium(61, "SSD Ceramics$",61, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
706 AliMedium(62, "SSD Kapton$", 62, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
707 AliMedium(63, "SSD G10FR4$", 63, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
709 // 275-299 --> General (end-caps, frames, cooling, cables, etc.)
711 AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
713 AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
714 AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
715 AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
716 AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
717 AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
718 // After a call with ratios by number (negative number of elements),
719 // the ratio array is changed to the ratio by weight, so all successive
720 // calls with the same array must specify the number of elements as
722 AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
724 AliMedium(75,"GEN C$", 75, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
725 AliMedium(76,"GEN Air$", 76, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
726 AliMedium(77,"GEN Vacuum$", 77, 0,isxfld,sxmgmx, 10., .10, .1, .100,10.00);
727 AliMedium(78,"GEN POLYETHYL$",78, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
728 AliMedium(79,"GEN SERVICES$", 79, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
729 AliMedium(80,"GEN Copper$", 80, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
730 AliMedium(81,"GEN Water $", 81, 0,isxfld,sxmgmx, 10., .01, .1, .003, .003);
732 //_____________________________________________________________________________
733 void AliITSv1::Init(){
734 ////////////////////////////////////////////////////////////////////////
735 // Initialise the ITS after it has been created.
736 ////////////////////////////////////////////////////////////////////////
744 //_____________________________________________________________________________
745 void AliITSv1::DrawModule(){
746 ////////////////////////////////////////////////////////////////////////
747 // Draw a shaded view of the FMD version 1.
748 ////////////////////////////////////////////////////////////////////////
750 // Set everything unseen
751 gMC->Gsatt("*", "seen", -1);
753 // Set ALIC mother visible
754 gMC->Gsatt("ALIC","SEEN",0);
756 // Set the volumes visible
757 gMC->Gsatt("ITSV","SEEN",0);
758 gMC->Gsatt("ITS1","SEEN",1);
759 gMC->Gsatt("ITS2","SEEN",1);
760 gMC->Gsatt("ITS3","SEEN",1);
761 gMC->Gsatt("ITS4","SEEN",1);
762 gMC->Gsatt("ITS5","SEEN",1);
763 gMC->Gsatt("ITS6","SEEN",1);
765 gMC->Gsatt("IPCB","SEEN",1);
766 gMC->Gsatt("ICO2","SEEN",1);
767 gMC->Gsatt("ICER","SEEN",0);
768 gMC->Gsatt("ISI2","SEEN",0);
769 gMC->Gsatt("IPLA","SEEN",0);
770 gMC->Gsatt("ICO3","SEEN",0);
771 gMC->Gsatt("IEPX","SEEN",0);
772 gMC->Gsatt("ISI3","SEEN",1);
773 gMC->Gsatt("ISUP","SEEN",0);
774 gMC->Gsatt("ICHO","SEEN",0);
775 gMC->Gsatt("ICMO","SEEN",0);
776 gMC->Gsatt("ICMD","SEEN",0);
777 gMC->Gsatt("ICCO","SEEN",1);
778 gMC->Gsatt("ICCM","SEEN",0);
779 gMC->Gsatt("ITMD","SEEN",0);
780 gMC->Gsatt("ITTT","SEEN",1);
783 gMC->Gdopt("hide", "on");
784 gMC->Gdopt("shad", "on");
785 gMC->Gsatt("*", "fill", 7);
786 gMC->SetClipBox(".");
787 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
789 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .07, .07);
790 gMC->Gdhead(1111, "Inner Tracking System Version 1");
791 gMC->Gdman(17, 6, "MAN");
793 //_____________________________________________________________________________
794 void AliITSv1::StepManager(){
795 ////////////////////////////////////////////////////////////////////////
796 // Called for every step in the ITS, then calles the AliITShit class
797 // creator with the information to be recoreded about that hit.
798 ////////////////////////////////////////////////////////////////////////
803 TLorentzVector position, momentum;
804 TClonesArray &lhits = *fHits;
808 if(gMC->IsTrackInside()) vol[3] += 1;
809 if(gMC->IsTrackEntering()) vol[3] += 2;
810 if(gMC->IsTrackExiting()) vol[3] += 4;
811 if(gMC->IsTrackOut()) vol[3] += 8;
812 if(gMC->IsTrackDisappeared()) vol[3] += 16;
813 if(gMC->IsTrackStop()) vol[3] += 32;
814 if(gMC->IsTrackAlive()) vol[3] += 64;
816 // Fill hit structure.
817 if( !(gMC->TrackCharge()) ) return;
819 // Only entering charged tracks
820 if((id=gMC->CurrentVolID(copy))==fIdSens[0]) {
822 id=gMC->CurrentVolOffID(1,copy);
824 id=gMC->CurrentVolOffID(2,copy);
826 } else if(id==fIdSens[1]) {
828 id=gMC->CurrentVolOffID(1,copy);
830 id=gMC->CurrentVolOffID(2,copy);
832 } else if(id==fIdSens[2]) {
835 id=gMC->CurrentVolOffID(1,copy);
837 } else if(id==fIdSens[3]) {
840 id=gMC->CurrentVolOffID(1,copy);
842 } else if(id==fIdSens[4]) {
845 id=gMC->CurrentVolOffID(1,copy);
847 } else if(id==fIdSens[5]) {
850 id=gMC->CurrentVolOffID(1,copy);
853 gMC->TrackPosition(position);
854 gMC->TrackMomentum(momentum);
862 hits[7]=gMC->TrackTime();
863 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);