TMatrixF *fLocPosM is removed as unnecessary. Memory leak is fixed.
[u/mrichter/AliRoot.git] / T0 / AliT0v1.cxx
CommitLineData
dc7ca31d 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17
18/////////////////////////////////////////////////////////////////////
19// //
20// T0 ( T-zero) detector version 1 //
21//
22//Begin Html
23/*
24<img src="gif/AliT0v1Class.gif">
25*/
26//End Html
27// //
28// //
29//////////////////////////////////////////////////////////////////////
30
31#include <Riostream.h>
32#include <stdlib.h>
33
34#include <TGeometry.h>
35#include <TLorentzVector.h>
36#include <TMath.h>
37#include <TNode.h>
38#include <TTUBE.h>
39#include <TVirtualMC.h>
40#include "TGeoManager.h"
268f57b1 41#include "TGeoMatrix.h"
dc7ca31d 42#include "TGeoPgon.h"
43#include "TGeoTube.h"
44#include "TGeoCompositeShape.h"
45#include <TGraph.h>
46
47#include "AliLog.h"
48#include "AliMagF.h"
49#include "AliRun.h"
50
51#include "AliT0hit.h"
52#include "AliT0v1.h"
53#include "AliT0Parameters.h"
54
55#include "AliMC.h"
56#include "AliCDBLocal.h"
57#include "AliCDBStorage.h"
58#include "AliCDBManager.h"
59#include "AliCDBEntry.h"
60
61ClassImp(AliT0v1)
62
2ee4b412 63
64//--------------------------------------------------------------------
65AliT0v1::AliT0v1(): AliT0(),
66 fIdSens1(0),
67 fEffPMT(0x0)
68
69{
70 //
71 // Standart constructor for T0 Detector version 0
72}
dc7ca31d 73//--------------------------------------------------------------------
74AliT0v1::AliT0v1(const char *name, const char *title):
75 AliT0(name,title),
2ee4b412 76 fIdSens1(0),
77 fEffPMT(0x0)
78
dc7ca31d 79{
80 //
81 // Standart constructor for T0 Detector version 0
82 //
83 fIshunt = 2;
84 AliT0Parameters* param = AliT0Parameters::Instance();
85 for (Int_t i=0; i<24; i++){
86 TGraph* grEff = param ->GetPMTeff(i);
87 fEffPMT.AddAtAndExpand(grEff,i);
88 }
89}
90//_____________________________________________________________________________
91
92AliT0v1::~AliT0v1()
93{
94 // desctructor
95}
96
97//-------------------------------------------------------------------------
98void AliT0v1::CreateGeometry()
99{
100 //
101 // Create the geometry of T0 Detector version 0
102 //
103 // begin Html
104 /*
105 <img src="gif/AliT0v0.gif">
106 */
107 //
108
109
110 Int_t *idtmed = fIdtmed->GetArray();
111 /*
112 AliT0Parameters* param = AliT0Parameters::Instance();
113 param->Init();
114 Float_t zdetC = param->GetZposition(0);
115 Float_t zdetA = param->GetZposition(1);
116 */
117 Float_t zdetC = 69.7;
118 Float_t zdetA = 373.;
119
120 Int_t is;
121 Int_t idrotm[999];
122 Float_t x,y,z;
123 //C T0 mother volume
124 Float_t pstartR[18]={0., 360., 5.,
125 -6.8, 4.25, 10., //-76.5+0.00+69.7
126 -0.75 , 4.5, 10., // -76.5+6.05+69.7
127 1.25 , 4.5, 10., //-76.5+8.05+69.7
128 1.25 , 5.1, 10., //-76.5+8.05+69.7
129 6.8 , 5.1, 10.}; //-62.9+0.00+69.7
130
131 Float_t pstart[3]={4., 12.5,6.8};
6e1147e5 132 Float_t pinstart[3]={0.,1.51,6.5};
dc7ca31d 133 Float_t ppmt[3]={0.,1.5,3.5};
134 Float_t ptop[3]={0.,1.,1.0};
135 Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
136 Float_t ptopout[3]={1.,1.01, 1.}; //metal air around raiator for photos reflection
137 Float_t pbot[3]={0.6,1.2,0.1};
138 Float_t pglass[3]={1.2,1.3,2.};
139 Float_t pcer[3]={0.9,1.1,1.35};
140 Float_t psteel[3]={0.9,1.1,0.15};
fe20da59 141 Float_t psupport1[3] = {4.51,4.52,4.0};//C kozhuh vnutri
dc7ca31d 142 Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi C
143 Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki C
6e1147e5 144 Float_t psupport5[3] = {1.44,1.49,6.5}; // stakanchik dlai feu C
dc7ca31d 145 Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika Al
fe20da59 146 Float_t psupport7[3] = {1.5,1.51,0.4}; //kolechko snaruzhu stakanchika Al
dc7ca31d 147
148 // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
149 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
150 Float_t ppcon[70];
151 ppcon[0] = 0;
152 ppcon[1] = 360;
153 ppcon[2] = 13;
154// 1:
155 ppcon[3] = 7.2;
156 ppcon[4] = 4.4;
157 ppcon[5] = 4.5;
158// 2
159 ppcon[6] = 8.2;
160 ppcon[7] = 4.4;
161 ppcon[8] = 4.5;
162// 3
163 ppcon[9] = 8.2;
164 ppcon[10] = 4.4;
165 ppcon[11] = 5.1;
166
167// 4
168
169 ppcon[12] = 8.3;
170 ppcon[13] = 4.4;
171 ppcon[14] = 5.1;
172// 5
173
174 ppcon[15] = 8.3;
175 ppcon[16] = 4.9;
176 ppcon[17] = 5.1;
177
178// 6
179 ppcon[18] = 15.;
180 ppcon[19] = 4.9;
181 ppcon[20] = 5.1;
182
183// 7
184 ppcon[21] = 15.;
185 ppcon[22] = 3.15 ;
186 ppcon[23] = 5.1;
187
188/// 8
189 ppcon[24] = 15.01;
190 ppcon[25] = 3.15;
191 ppcon[26] = 5.1;
192
193/// 9
194 ppcon[27] = 15.01;
195 ppcon[28] = 3.15;
196 ppcon[29] = 3.25;
197
198
199/// 9
200 ppcon[30] = 19.71;
201 ppcon[31] = 3.15;
202 ppcon[32] = 3.25;
203// 10
204 ppcon[33] = 19.8;
205 ppcon[34] = 3.15;
206 ppcon[35] = 3.25;
207 // 11
208 ppcon[36] = 19.8;
209 ppcon[37] = 3.15;
210 ppcon[38] = 7.6;
211
212 // 14
213
214 ppcon[39] = 19.91;
215 ppcon[40] = 3.15;
216 ppcon[41] = 7.6;
217
218
219 gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
220 z = -zdetC;
221 gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
222
223//-------------------------------------------------------------------
224 // T0 volume
225 //-------------------------------------------------------------------
226
227
228 gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
dc7ca31d 229 gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
230 // gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
231
232//T0 interior
233 gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
234 gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);
235
236 gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
237 gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
238 gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
239 gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
240 // gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
241 gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
242 gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
243 gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
244
245
246
247 //non-absorber side support and T0A !!!!!!!!
248
249 TGeoPgon * supPgon = new TGeoPgon("supPgon",0.,360.,360,4);
250 supPgon->DefineSection(0, 0, 4.1, 5.5);
251 supPgon->DefineSection(1, 10.5 , 4.1, 5.5);
252 supPgon->DefineSection(2, 10.5 , 4.1, 4.9);
253 supPgon->DefineSection(3, 12.5 , 4.1, 4.9);
254 TGeoTranslation *trPgon = new TGeoTranslation("trPgon",0,0,0);
255 trPgon->RegisterYourself();
256
1b070c3c 257 TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
dc7ca31d 258 TGeoVolume *ins = gGeoManager->GetVolume("0INS");
259
2ee4b412 260 // Double_t phimin = TMath::ACos((16-4.8)/16.) * (180 / TMath::Pi()) ;
dc7ca31d 261 // TGeoTubeSeg *hole = new TGeoTubeSeg("hole", 0, 1.6, 0, -phimin+90, phimin+90);
2ee4b412 262 new TGeoTube("hole", 0, 1.61, 6.5);
dc7ca31d 263 TGeoTranslation *tr [12];
264 Float_t angle = 2 * TMath::Pi() / 12;
b92d4288 265 Char_t nameTr[40];
dc7ca31d 266 for (Int_t itr=0; itr<12; itr++) {
267 sprintf (nameTr,"tr%i",itr+1);
fe20da59 268 x = 6.5 * TMath::Sin(itr * angle);
dc7ca31d 269 y = 6.5 * TMath::Cos(itr * angle);
270 tr[itr] = new TGeoTranslation(nameTr,x,y,6.5);
fe20da59 271 tr[itr]->RegisterYourself();
dc7ca31d 272 stlin->AddNode(ins,itr+13,tr[itr]);
273 }
274 TGeoCompositeShape *supsh = new TGeoCompositeShape("supsh","supPgon:trPgon-(hole:tr1+hole:tr2+hole:tr3+hole:tr4+hole:tr5+hole:tr6+hole:tr7+hole:tr8+hole:tr9+hole:tr10+hole:tr11+hole:tr12)");
275
276 TGeoMedium *medal = gGeoManager->GetMedium("T0_Aluminium$");
277 TGeoVolume *supA = new TGeoVolume("0SUA",supsh,medal);
278 stlin->AddNode(supA,1,new TGeoTranslation(0,0,0));
279
280 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
281 alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ));
282
283 // T0A finished
284
285 //T0C
286// first ring: 12 units of Scintillator+PMT+divider
fe20da59 287 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetC);
dc7ca31d 288 Float_t phi[3];
289 for (is=0; is<12; is++)
290 {
291
6e1147e5 292 x = 6.6 * TMath::Sin(is * angle);
293 y = 6.6 * TMath::Cos(is * angle);
dc7ca31d 294
295 phi[0] = -30 * is;
296 phi[1] = 90 - is * 30;
297 phi[2] = 90 - is * 30;
298 for (Int_t j = 0; j < 3; j++)
299 if (phi[j] < 0) phi[j] += 360;
300
301 AliMatrix (idrotm[902 + is], 90., phi[0],
302 90. + theta, phi[1],
303 theta, phi[2]);
304 z=-pstart[2]+pinstart[2]+0.2;
305 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
306 }
307
308 x=0;
309 y=0;
310 z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
311 gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
312 // PMT
313
314 // Entry window (glass)
315 gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
316 z=-ppmt[2]+ptop[2];
317 gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
318 //"metal" air volume to simulate reclection
319 gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3);
320 gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
321
322 //Fotokatod
323 gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3);
324 z = -ppmt[2] + 2 * ptop[2] + preg[2];
325 gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");
326 // Bottom glass
327 gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
328 z=ppmt[2]-pbot[2];
329 gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
330 // Side cylinder glass
331 gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
332 z=ppmt[2]-pglass[2];
333 gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
334 //PMT electrodes support structure
335 gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
336 gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
337 z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
338 gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
339 z +=psteel[2]+pcer[2];
340 gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
341
342 //Support absorber (C) side
343 z=-pstart[2]+psupport1[2]+0.1;
344 gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
345 gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
fe20da59 346 z=-pstart[2]+psupport3[2]; //+0.01;
dc7ca31d 347 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
348 z=-pstart[2]+2.*psupport1[2]-0.05;//+0.1;
349 gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
350 gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
351 z=-pinstart[2]+psupport6[2];
352 gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
353
354 z=pinstart[2]-psupport7[2];
355 gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
356
357
358 Float_t par[3];
359 par[0]=4.4;
360 par[1]=4.5;
361 par[2]=0.5;
362 gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
363 z=ppcon[3]+par[2];
364 gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
365 z += par[2];
366 par[0]=4.4;
367 par[1]=5.1;
368 par[2]=0.05;
369 gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
370 z += par[2];
371 gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
372 z=z+par[2];
373 par[0]=4.9;
374 par[1]=5.0;
375 par[2]=6.7/2;
376 gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
377 z += par[2];
378 gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
379 z += par[2];
380
381 par[0]=3.15;
382 par[1]=4.9;
383 par[2]=0.1/2;
384 gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
385
386 z += par[2];
dc7ca31d 387 gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
388 z=z+par[2];
389 par[0]=3.15;
390 par[1]=3.16;
391 par[2]=4.7/2;
dc7ca31d 392 gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
393 z += par[2];
394 gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
395 z=z+par[2];
396 par[0]=3.16; // eta chast' prikruchena k absorberu
397 par[1]=7.5;
398 par[2]=0.1;
dc7ca31d 399 gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
400 z += par[2];
401 gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
402 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
403 par[1]=7.5;
404 par[2]=0.01;
dc7ca31d 405 gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
406 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
407
408
409
410
411}
412//------------------------------------------------------------------------
413void AliT0v1::AddAlignableVolumes() const
414{
415 //
416 // Create entries for alignable volumes associating the symbolic volume
417 // name with the corresponding volume path. Needs to be syncronized with
418 // eventual changes in the geometry.
419 //
420
421 TString volPath;
422 TString symName, sn;
423
424 TString vpA = "/ALIC_1/0STL_1/0INS_";
425 TString vpC = "/ALIC_1/0STR_1/0INS_";
426 TString vpInside = "/0PMT_1/0TOP_1";
427
dc7ca31d 428 for (Int_t imod=0; imod<24; imod++)
429 {
430 if (imod < 12)
1b070c3c 431 {volPath = vpC; sn="T0/C/PMT";}
432 else
433 {volPath = vpA; sn="T0/A/PMT";}
dc7ca31d 434 volPath += imod+1;
435 volPath += vpInside;
436
437 symName = sn;
438 symName += imod+1;
439
440 AliDebug(2,"--------------------------------------------");
441 AliDebug(2,Form("Alignable object %d", imod));
442 AliDebug(2,Form("volPath=%s\n",volPath.Data()));
443 AliDebug(2,Form("symName=%s\n",symName.Data()));
444 AliDebug(2,"--------------------------------------------");
1b070c3c 445 if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
446 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symName.Data(),volPath.Data()));
dc7ca31d 447
448 }
449}
450//------------------------------------------------------------------------
451void AliT0v1::CreateMaterials()
452{
453 Int_t isxfld = gAlice->Field()->Integ();
454 Float_t sxmgmx = gAlice->Field()->Max();
455 // Float_t a,z,d,radl,absl,buf[1];
456 // Int_t nbuf;
dc7ca31d 457// AIR
458
459 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
460 Float_t zAir[4]={6.,7.,8.,18.};
461 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
462 Float_t dAir = 1.20479E-3;
463
464// Scintillator CH
465 Float_t ascin[2]={1.01,12.01};
466 Float_t zscin[2]={1,6};
467 Float_t wscin[2]={1,1};
468 Float_t denscin=1.03;
469//Lucite C(CH3)CO2CH3
470 Float_t alucite[3]={1.01,12.01,15.999};
471 Float_t zlucite[3]={1,6,8};
472 Float_t wlucite[3]={8,5,2};
473 Float_t denlucite=1.16;
474 // PMT glass SiO2
475 Float_t aglass[2]={28.0855,15.9994};
476 Float_t zglass[2]={14.,8.};
477 Float_t wglass[2]={1.,2.};
478 Float_t dglass=2.65;
479// Ceramic 97.2% Al2O3 , 2.8% SiO2
480 // Float_t wcer[2]={0.972,0.028};
481 Float_t aCeramic[2] = { 26.981539,15.9994 };
482 Float_t zCeramic[2] = { 13.,8. };
483 Float_t wCeramic[2] = { 2.,3. };
484 Float_t denscer = 3.6;
485
486// Brass 80% Cu, 20% Zn
487 Float_t abrass[2] = {63.546,65.39};
488 Float_t zbrass[2] = {29,30};
489 Float_t wbrass[2] = {0.8,0.2};
490 Float_t denbrass=8.96;
491
492//Ribber C6H12S
493 Float_t aribber[3] = {12.,1.,32.};
494 Float_t zribber[3] = {6.,1.,16.};
495 Float_t wribber[3] = {6.,12.,1.};
496 Float_t denribber=0.8;
497// Support inside
498 Float_t asupport[2] = {12.,1.};
499 Float_t zsupport[2] = {6.,1.};
500 Float_t wsupport[2] = {1.,1.};
501 Float_t densupport=0.1;
502
503//*** Definition Of avaible T0 materials ***
504 AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
505 AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
506 AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
507 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
508 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
509
510 AliMixture( 3, "Ceramic $",aCeramic, zCeramic, denscer, -2, wCeramic);
511 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
512 /*
513 char namate[21]="";
514
515 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
516 acer[0]=a;
517
518 zcer[0]=z;
519 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
520 acer[1]=a;
521 zcer[1]=z;
522 AliMixture( 11, "Ceramic $", acer, zcer, denscer, 2, wcer);
523 */
524 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
525 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
526 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
527 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
528 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
529 AliMixture( 21, "PMT Optical glass $",aglass,zglass,dglass,-2,wglass);
530 AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
531 AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
532 AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
533
534 AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
535 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
536 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
537 AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
538 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
539 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
540 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
541 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
542 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
543 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
544 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
545 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
546 AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
547 AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
548 AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
549 AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
7235aed2 550
551 AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
552
553
554}
555//---------------------------------------------------------------------
556void AliT0v1::DrawDetector()
557{
558//
559// Draw a shaded view of the Forward multiplicity detector version 0
560//
561
562 //Set ALIC mother transparent
563 gMC->Gsatt("ALIC","SEEN",0);
564 //
565 //Set volumes visible
566 // gMC->Gsatt("0STR","SEEN",0);
567 // gMC->Gsatt("0INS","SEEN",0);
568 // gMC->Gsatt("0PMT","SEEN",1);
569 // gMC->Gsatt("0DIV","SEEN",1);
570 //
571 gMC->Gdopt("hide","off");
572 gMC->Gdopt("shad","on");
573 gMC->SetClipBox(".");
574 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
575 gMC->DefaultRange();
576 gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
577 //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
578 gMC->Gdhead(1111,"T-Zero detector");
579 gMC->Gdopt("hide","off");
580}
dc7ca31d 581
7235aed2 582//-------------------------------------------------------------------
661663fa 583void AliT0v1::DefineOpticalProperties()
7235aed2 584{
661663fa 585// Optical properties definition.
7235aed2 586 Int_t *idtmed = fIdtmed->GetArray();
dc7ca31d 587// Definition Cherenkov parameters
588 int i;
589 const Int_t kNbins=31;
590
591 Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
592
593 // quartz 20mm
594 Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4,
595 25.9, 25.3, 24.9, 24.5, 23.7,
596 23.2, 22.8, 22.4, 21.8, 21.3,
597 22.8, 22.1, 21.7, 21.2, 20.5,
598 19.9, 19.3, 18.7, 18.0, 17.1,
599 16.3, 15.3, 14.3, 14.3 };
600
601 Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
602 4.48, 4.58, 4.69, 4.81, 4.93,
603 5.05, 5.19, 5.33, 5.48, 5.63,
604 5.8, 5.97, 6.16, 6.36, 6.57,
605 6.8, 7.04, 7.3, 7.58, 7.89,
606 8.22, 8.57, 8.97, 9.39 };
607 /*
608 Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
609 0.21, 0.22, 0.23, 0.24, 0.26,
610 0.27, 0.29, 0.30, 0.29, 0.29,
611 0.28, 0.28, 0.27, 0.26, 0.25,
612 0.25, 0.23, 0.20, 0.19, 0.17,
613 0.17, 0.17, 0.2, 0.23};
614 */
615 // Float_t aAbsSiO2[kNbins]; //quartz 30mm
616 for(i=0;i<kNbins;i++)
617 {
618 aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV
619 rindexAir[i]=0;
620 rindexSiO2[i]=1.458; //refractive index for qwarts
621 rindexCathodeNext[i]=0;
622 efficAll[i]=1.;
623
624 // aAbsSiO2[i]=28.5; //quartz 30mm
625 absorAir[i]=0.3;
626 absorbCathodeNext[i]=0;
627
628 }
629
630
631 gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
632 // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
633 gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
634 gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
635 gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
661663fa 636}
dc7ca31d 637
661663fa 638//-------------------------------------------------------------------
639void AliT0v1::Init()
640{
641// Initialises version 0 of the Forward Multiplicity Detector
642//
643 AliT0::Init();
644 fIdSens1=gMC->VolId("0REG");
dc7ca31d 645
661663fa 646 AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
dc7ca31d 647}
648
649//-------------------------------------------------------------------
650
651void AliT0v1::StepManager()
652{
653 //
654 // Called for every step in the T0 Detector
655 //
656 Int_t id,copy,copy1;
657 static Float_t hits[6];
658 static Int_t vol[2];
659 TLorentzVector pos;
660
661 // TClonesArray &lhits = *fHits;
662
663 if(!gMC->IsTrackAlive()) return; // particle has disappeared
664
665
666 // If particles is photon then ...
667
668 if (gMC->TrackPid() == 50000050)
669 {
670 id=gMC->CurrentVolID(copy);
671
672
673 // Check the sensetive volume
674 if(id==fIdSens1 ) {
675 if(gMC->IsTrackEntering()) {
676 gMC->CurrentVolOffID(2,copy);
677 vol[1]=copy;
678 gMC->CurrentVolOffID(3,copy1);
679 vol[0]=copy1;
680 gMC->TrackPosition(pos);
681 hits[0] = pos[0];
682 hits[1] = pos[1];
683 hits[2] = pos[2];
684 if(pos[2]<0) vol[0]=2;
685 if(pos[2]>=0) vol[0]=1;
686
687 Float_t etot=gMC->Etot();
688 hits[3]=etot;
689 Int_t iPart= gMC->TrackPid();
690 Int_t partID=gMC->IdFromPDG(iPart);
691 hits[4]=partID;
692 Float_t ttime=gMC->TrackTime();
693 hits[5]=ttime*1e12;
694 if(RegisterPhotoE(vol[1]-1,hits[3]))
695 AddHit(fIshunt,vol,hits);
696
697 }
698 // cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
699
700 /*
701 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
702 gAlice->GetMCApp()->GetCurrentTrackNumber(),
703 gMC->IsTrackAlive(),
704 gMC->IsTrackDisappeared(),
705 gMC->IsTrackEntering(),
706 gMC->IsTrackExiting(),
707 gMC->IsTrackInside(),
708 gMC->IsTrackOut(),
709 gMC->IsTrackStop(),
710 gMC->IsNewTrack());
711 */
712 } //sensitive
713 } //photon
714}
715
716
717
718//------------------------------------------------------------------------
719Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
720{
721
722
723 // Float_t hc=197.326960*1.e6; //mev*nm
724 Double_t hc=1.973*1.e-6; //gev*nm
725 Float_t lambda=hc/energy;
726 Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
727 Double_t p = gRandom->Rndm();
728
729 if (p > eff)
730 return kFALSE;
731
732 return kTRUE;
733}
734
735//----------------------------------------------------------------------------
736
737
738
739
740
741