Merge of EVE-dev branch.
[u/mrichter/AliRoot.git] / T0 / AliT0v1.cxx
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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"
06cb77ae 42#include "TGeoPcon.h"
dc7ca31d 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];
06cb77ae 122 Double_t x,y,z;
dc7ca31d 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
f3c87c7b 126 -0.75 , 4.45, 10., // -76.5+6.05+69.7
127 1.25 , 4.45, 10., //-76.5+8.05+69.7
dc7ca31d 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};
f3c87c7b 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};
f3c87c7b 141 Float_t psupport1[3] = {4.49,4.5,4.0};//C kozhuh vnutri
142 Float_t psupport2[3] = {9.5,9.6,4.0};// snaruzhi C
143 Float_t psupport3[3] = {4.51,9.5, 0.05};//kryshki C
144 Float_t psupport5[3] = {1.5,1.5004,6.5}; // stakanchik dlai feu C
dc7ca31d 145 Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika Al
17507186 146 Float_t psupport7[3] = {1.5004,1.51,0.4}; //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
f3c87c7b 249 TGeoPcon * supPgon = new TGeoPcon("0supPgon",0.,360.,4);
dc7ca31d 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);
f3c87c7b 254 TGeoTranslation *trPgon = new TGeoTranslation("0trPgon",0,0,0);
dc7ca31d 255 trPgon->RegisterYourself();
256
1b070c3c 257 TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
dc7ca31d 258 TGeoVolume *ins = gGeoManager->GetVolume("0INS");
259
f3c87c7b 260 new TGeoTube("0HOLE", 0, 1.51, 6.5);
dc7ca31d 261 TGeoTranslation *tr [12];
06cb77ae 262 Double_t angle = 2 * TMath::Pi() / 12;
b92d4288 263 Char_t nameTr[40];
dc7ca31d 264 for (Int_t itr=0; itr<12; itr++) {
f3c87c7b 265 sprintf (nameTr,"0TR%i",itr+1);
fe20da59 266 x = 6.5 * TMath::Sin(itr * angle);
dc7ca31d 267 y = 6.5 * TMath::Cos(itr * angle);
268 tr[itr] = new TGeoTranslation(nameTr,x,y,6.5);
fe20da59 269 tr[itr]->RegisterYourself();
06cb77ae 270 stlin->AddNode(ins,itr+13,tr[itr]);
dc7ca31d 271 }
f3c87c7b 272 TGeoCompositeShape *supsh = new TGeoCompositeShape("0supsh","0supPgon:0trPgon-(0HOLE:0TR1+0HOLE:0TR2+0HOLE:0TR3+0HOLE:0TR4+0HOLE:0TR5+0HOLE:0TR6+0HOLE:0TR7+0HOLE:0TR8+0HOLE:0TR9+0HOLE:0TR10+0HOLE:0TR11+0HOLE:0TR12)");
dc7ca31d 273
274 TGeoMedium *medal = gGeoManager->GetMedium("T0_Aluminium$");
275 TGeoVolume *supA = new TGeoVolume("0SUA",supsh,medal);
276 stlin->AddNode(supA,1,new TGeoTranslation(0,0,0));
277
278 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
279 alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ));
280
281 // T0A finished
282
283 //T0C
284// first ring: 12 units of Scintillator+PMT+divider
17507186 285 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.6 / zdetC);
dc7ca31d 286 Float_t phi[3];
287 for (is=0; is<12; is++)
288 {
289
6e1147e5 290 x = 6.6 * TMath::Sin(is * angle);
291 y = 6.6 * TMath::Cos(is * angle);
dc7ca31d 292
293 phi[0] = -30 * is;
294 phi[1] = 90 - is * 30;
295 phi[2] = 90 - is * 30;
296 for (Int_t j = 0; j < 3; j++)
297 if (phi[j] < 0) phi[j] += 360;
298
299 AliMatrix (idrotm[902 + is], 90., phi[0],
300 90. + theta, phi[1],
301 theta, phi[2]);
17507186 302 z=-pstart[2]+pinstart[2]+0.3;
dc7ca31d 303 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
304 }
305
306 x=0;
307 y=0;
17507186 308 // z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
f3c87c7b 309 z=-pinstart[2]+ppmt[2]+0.08; //+psupport6[2];
dc7ca31d 310 gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
311 // PMT
312
313 // Entry window (glass)
314 gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
315 z=-ppmt[2]+ptop[2];
316 gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
317 //"metal" air volume to simulate reclection
318 gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3);
319 gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
320
321 //Fotokatod
322 gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3);
323 z = -ppmt[2] + 2 * ptop[2] + preg[2];
324 gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");
325 // Bottom glass
326 gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
327 z=ppmt[2]-pbot[2];
328 gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
329 // Side cylinder glass
330 gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
331 z=ppmt[2]-pglass[2];
332 gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
333 //PMT electrodes support structure
334 gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
335 gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
336 z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
337 gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
338 z +=psteel[2]+pcer[2];
339 gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
340
341 //Support absorber (C) side
f3c87c7b 342 z=-pstart[2]+psupport1[2];// 0.05; //0.1;
dc7ca31d 343 gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
344 gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
f3c87c7b 345 z=-pstart[2]+psupport3[2];// - 0.1;
dc7ca31d 346 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
f3c87c7b 347 z=-pstart[2]+2.*psupport1[2];//+0.1;
dc7ca31d 348 gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
349 gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
f3c87c7b 350 z=-pinstart[2]+psupport6[2]; //-0.1;
dc7ca31d 351 gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
352
353 z=pinstart[2]-psupport7[2];
354 gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
355
356
357 Float_t par[3];
358 par[0]=4.4;
359 par[1]=4.5;
360 par[2]=0.5;
361 gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
362 z=ppcon[3]+par[2];
363 gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
364 z += par[2];
365 par[0]=4.4;
366 par[1]=5.1;
367 par[2]=0.05;
368 gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
369 z += par[2];
370 gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
371 z=z+par[2];
372 par[0]=4.9;
373 par[1]=5.0;
374 par[2]=6.7/2;
375 gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
376 z += par[2];
377 gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
378 z += par[2];
379
380 par[0]=3.15;
381 par[1]=4.9;
382 par[2]=0.1/2;
383 gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
384
385 z += par[2];
dc7ca31d 386 gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
387 z=z+par[2];
388 par[0]=3.15;
389 par[1]=3.16;
390 par[2]=4.7/2;
dc7ca31d 391 gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
392 z += par[2];
393 gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
394 z=z+par[2];
395 par[0]=3.16; // eta chast' prikruchena k absorberu
396 par[1]=7.5;
397 par[2]=0.1;
dc7ca31d 398 gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
399 z += par[2];
400 gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
401 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
402 par[1]=7.5;
403 par[2]=0.01;
dc7ca31d 404 gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
17507186 405 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"MANY");
dc7ca31d 406
407
408
409
410}
411//------------------------------------------------------------------------
412void AliT0v1::AddAlignableVolumes() const
413{
414 //
415 // Create entries for alignable volumes associating the symbolic volume
416 // name with the corresponding volume path. Needs to be syncronized with
417 // eventual changes in the geometry.
418 //
419
06cb77ae 420 // TString volPath;
421 // TString symName, sn;
422
423
424
425
dc7ca31d 426 TString volPath;
427 TString symName, sn;
428
429 TString vpA = "/ALIC_1/0STL_1/0INS_";
430 TString vpC = "/ALIC_1/0STR_1/0INS_";
431 TString vpInside = "/0PMT_1/0TOP_1";
06cb77ae 432 TString vpAalign = "/ALIC_1/0STL_1";
433 TString vpCalign = "/ALIC_1/0STR_1";
434
435 for (Int_t imod=0; imod<26; imod++)
436 {
437 if (imod < 24)
438 {
439 if (imod < 12)
440 { volPath = vpC; sn="T0/C/PMT";}
441 else
442 { volPath = vpA; sn="T0/A/PMT";}
443 volPath += imod+1;
444 volPath += vpInside;
445 symName = sn;
446 symName += imod+1;
447 }
448 else if (imod == 24)
449 {volPath = vpCalign; symName="/ALIC_1/0STR_1";}
450 else
451 {volPath = vpAalign; symName="/ALIC_1/0STL_1";}
dc7ca31d 452
06cb77ae 453 AliDebug(2,"--------------------------------------------");
454 AliDebug(2,Form("Alignable object %d", imod));
455 AliDebug(2,Form("volPath=%s\n",volPath.Data()));
456 AliDebug(2,Form("symName=%s\n",symName.Data()));
457 AliDebug(2,"--------------------------------------------");
458 if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
459 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
460symName.Data(),volPath.Data()));
461 }
462 /*
dc7ca31d 463 for (Int_t imod=0; imod<24; imod++)
464 {
06cb77ae 465 if (imod < 12)
466 { volPath = vpC; sn="T0/C/PMT";}
467 else
468 { volPath = vpA; sn="T0/A/PMT";}
dc7ca31d 469 volPath += imod+1;
470 volPath += vpInside;
dc7ca31d 471 symName = sn;
472 symName += imod+1;
06cb77ae 473
474
dc7ca31d 475 AliDebug(2,"--------------------------------------------");
476 AliDebug(2,Form("Alignable object %d", imod));
477 AliDebug(2,Form("volPath=%s\n",volPath.Data()));
478 AliDebug(2,Form("symName=%s\n",symName.Data()));
479 AliDebug(2,"--------------------------------------------");
1b070c3c 480 if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
06cb77ae 481 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
482symName.Data(),volPath.Data()));
483 }
484 */
dc7ca31d 485}
486//------------------------------------------------------------------------
487void AliT0v1::CreateMaterials()
488{
489 Int_t isxfld = gAlice->Field()->Integ();
490 Float_t sxmgmx = gAlice->Field()->Max();
491 // Float_t a,z,d,radl,absl,buf[1];
492 // Int_t nbuf;
dc7ca31d 493// AIR
494
495 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
496 Float_t zAir[4]={6.,7.,8.,18.};
497 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
498 Float_t dAir = 1.20479E-3;
499
500// Scintillator CH
501 Float_t ascin[2]={1.01,12.01};
502 Float_t zscin[2]={1,6};
503 Float_t wscin[2]={1,1};
504 Float_t denscin=1.03;
505//Lucite C(CH3)CO2CH3
506 Float_t alucite[3]={1.01,12.01,15.999};
507 Float_t zlucite[3]={1,6,8};
508 Float_t wlucite[3]={8,5,2};
509 Float_t denlucite=1.16;
510 // PMT glass SiO2
511 Float_t aglass[2]={28.0855,15.9994};
512 Float_t zglass[2]={14.,8.};
513 Float_t wglass[2]={1.,2.};
514 Float_t dglass=2.65;
515// Ceramic 97.2% Al2O3 , 2.8% SiO2
516 // Float_t wcer[2]={0.972,0.028};
517 Float_t aCeramic[2] = { 26.981539,15.9994 };
518 Float_t zCeramic[2] = { 13.,8. };
519 Float_t wCeramic[2] = { 2.,3. };
520 Float_t denscer = 3.6;
521
522// Brass 80% Cu, 20% Zn
523 Float_t abrass[2] = {63.546,65.39};
524 Float_t zbrass[2] = {29,30};
525 Float_t wbrass[2] = {0.8,0.2};
526 Float_t denbrass=8.96;
527
528//Ribber C6H12S
529 Float_t aribber[3] = {12.,1.,32.};
530 Float_t zribber[3] = {6.,1.,16.};
531 Float_t wribber[3] = {6.,12.,1.};
532 Float_t denribber=0.8;
533// Support inside
534 Float_t asupport[2] = {12.,1.};
535 Float_t zsupport[2] = {6.,1.};
536 Float_t wsupport[2] = {1.,1.};
537 Float_t densupport=0.1;
538
539//*** Definition Of avaible T0 materials ***
540 AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
541 AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
542 AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
543 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
544 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
545
546 AliMixture( 3, "Ceramic $",aCeramic, zCeramic, denscer, -2, wCeramic);
547 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
548 /*
549 char namate[21]="";
550
551 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
552 acer[0]=a;
553
554 zcer[0]=z;
555 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
556 acer[1]=a;
557 zcer[1]=z;
558 AliMixture( 11, "Ceramic $", acer, zcer, denscer, 2, wcer);
559 */
560 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
561 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
562 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
563 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
564 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
565 AliMixture( 21, "PMT Optical glass $",aglass,zglass,dglass,-2,wglass);
566 AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
567 AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
568 AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
569
570 AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
571 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
572 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
573 AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
574 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
575 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
576 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
577 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
578 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
579 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
580 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
581 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
582 AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
583 AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
584 AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
585 AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
7235aed2 586
587 AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
588
589
590}
591//---------------------------------------------------------------------
592void AliT0v1::DrawDetector()
593{
594//
595// Draw a shaded view of the Forward multiplicity detector version 0
596//
597
598 //Set ALIC mother transparent
599 gMC->Gsatt("ALIC","SEEN",0);
600 //
601 //Set volumes visible
602 // gMC->Gsatt("0STR","SEEN",0);
603 // gMC->Gsatt("0INS","SEEN",0);
604 // gMC->Gsatt("0PMT","SEEN",1);
605 // gMC->Gsatt("0DIV","SEEN",1);
606 //
607 gMC->Gdopt("hide","off");
608 gMC->Gdopt("shad","on");
609 gMC->SetClipBox(".");
610 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
611 gMC->DefaultRange();
612 gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
613 //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
614 gMC->Gdhead(1111,"T-Zero detector");
615 gMC->Gdopt("hide","off");
616}
dc7ca31d 617
7235aed2 618//-------------------------------------------------------------------
661663fa 619void AliT0v1::DefineOpticalProperties()
7235aed2 620{
661663fa 621// Optical properties definition.
7235aed2 622 Int_t *idtmed = fIdtmed->GetArray();
dc7ca31d 623// Definition Cherenkov parameters
624 int i;
625 const Int_t kNbins=31;
626
627 Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
628
629 // quartz 20mm
630 Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4,
631 25.9, 25.3, 24.9, 24.5, 23.7,
632 23.2, 22.8, 22.4, 21.8, 21.3,
633 22.8, 22.1, 21.7, 21.2, 20.5,
634 19.9, 19.3, 18.7, 18.0, 17.1,
635 16.3, 15.3, 14.3, 14.3 };
636
637 Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
638 4.48, 4.58, 4.69, 4.81, 4.93,
639 5.05, 5.19, 5.33, 5.48, 5.63,
640 5.8, 5.97, 6.16, 6.36, 6.57,
641 6.8, 7.04, 7.3, 7.58, 7.89,
642 8.22, 8.57, 8.97, 9.39 };
643 /*
644 Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
645 0.21, 0.22, 0.23, 0.24, 0.26,
646 0.27, 0.29, 0.30, 0.29, 0.29,
647 0.28, 0.28, 0.27, 0.26, 0.25,
648 0.25, 0.23, 0.20, 0.19, 0.17,
649 0.17, 0.17, 0.2, 0.23};
650 */
651 // Float_t aAbsSiO2[kNbins]; //quartz 30mm
652 for(i=0;i<kNbins;i++)
653 {
654 aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV
655 rindexAir[i]=0;
656 rindexSiO2[i]=1.458; //refractive index for qwarts
657 rindexCathodeNext[i]=0;
658 efficAll[i]=1.;
659
660 // aAbsSiO2[i]=28.5; //quartz 30mm
661 absorAir[i]=0.3;
662 absorbCathodeNext[i]=0;
663
664 }
665
666
667 gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
668 // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
669 gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
670 gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
671 gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
661663fa 672}
dc7ca31d 673
661663fa 674//-------------------------------------------------------------------
675void AliT0v1::Init()
676{
677// Initialises version 0 of the Forward Multiplicity Detector
678//
679 AliT0::Init();
680 fIdSens1=gMC->VolId("0REG");
dc7ca31d 681
661663fa 682 AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
dc7ca31d 683}
684
685//-------------------------------------------------------------------
686
687void AliT0v1::StepManager()
688{
689 //
690 // Called for every step in the T0 Detector
691 //
692 Int_t id,copy,copy1;
693 static Float_t hits[6];
694 static Int_t vol[2];
695 TLorentzVector pos;
696
697 // TClonesArray &lhits = *fHits;
698
699 if(!gMC->IsTrackAlive()) return; // particle has disappeared
700
701
702 // If particles is photon then ...
703
704 if (gMC->TrackPid() == 50000050)
705 {
706 id=gMC->CurrentVolID(copy);
707
708
709 // Check the sensetive volume
710 if(id==fIdSens1 ) {
711 if(gMC->IsTrackEntering()) {
712 gMC->CurrentVolOffID(2,copy);
713 vol[1]=copy;
714 gMC->CurrentVolOffID(3,copy1);
715 vol[0]=copy1;
716 gMC->TrackPosition(pos);
717 hits[0] = pos[0];
718 hits[1] = pos[1];
719 hits[2] = pos[2];
720 if(pos[2]<0) vol[0]=2;
721 if(pos[2]>=0) vol[0]=1;
722
723 Float_t etot=gMC->Etot();
724 hits[3]=etot;
725 Int_t iPart= gMC->TrackPid();
726 Int_t partID=gMC->IdFromPDG(iPart);
727 hits[4]=partID;
728 Float_t ttime=gMC->TrackTime();
729 hits[5]=ttime*1e12;
730 if(RegisterPhotoE(vol[1]-1,hits[3]))
731 AddHit(fIshunt,vol,hits);
732
733 }
734 // cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
735
736 /*
737 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
738 gAlice->GetMCApp()->GetCurrentTrackNumber(),
739 gMC->IsTrackAlive(),
740 gMC->IsTrackDisappeared(),
741 gMC->IsTrackEntering(),
742 gMC->IsTrackExiting(),
743 gMC->IsTrackInside(),
744 gMC->IsTrackOut(),
745 gMC->IsTrackStop(),
746 gMC->IsNewTrack());
747 */
748 } //sensitive
749 } //photon
750}
751
752
753
754//------------------------------------------------------------------------
755Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
756{
757
758
759 // Float_t hc=197.326960*1.e6; //mev*nm
760 Double_t hc=1.973*1.e-6; //gev*nm
761 Float_t lambda=hc/energy;
762 Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
763 Double_t p = gRandom->Rndm();
764
765 if (p > eff)
766 return kFALSE;
767
768 return kTRUE;
769}
770
771//----------------------------------------------------------------------------
772
773
774
775
776
777