Updated list of classes
[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"
41#include "TGeoPgon.h"
42#include "TGeoTube.h"
43#include "TGeoCompositeShape.h"
44#include <TGraph.h>
45
46#include "AliLog.h"
47#include "AliMagF.h"
48#include "AliRun.h"
49
50#include "AliT0hit.h"
51#include "AliT0v1.h"
52#include "AliT0Parameters.h"
53
54#include "AliMC.h"
55#include "AliCDBLocal.h"
56#include "AliCDBStorage.h"
57#include "AliCDBManager.h"
58#include "AliCDBEntry.h"
59
60ClassImp(AliT0v1)
61
2ee4b412 62
63//--------------------------------------------------------------------
64AliT0v1::AliT0v1(): AliT0(),
65 fIdSens1(0),
66 fEffPMT(0x0)
67
68{
69 //
70 // Standart constructor for T0 Detector version 0
71}
dc7ca31d 72//--------------------------------------------------------------------
73AliT0v1::AliT0v1(const char *name, const char *title):
74 AliT0(name,title),
2ee4b412 75 fIdSens1(0),
76 fEffPMT(0x0)
77
dc7ca31d 78{
79 //
80 // Standart constructor for T0 Detector version 0
81 //
82 fIshunt = 2;
83 AliT0Parameters* param = AliT0Parameters::Instance();
84 for (Int_t i=0; i<24; i++){
85 TGraph* grEff = param ->GetPMTeff(i);
86 fEffPMT.AddAtAndExpand(grEff,i);
87 }
88}
89//_____________________________________________________________________________
90
91AliT0v1::~AliT0v1()
92{
93 // desctructor
94}
95
96//-------------------------------------------------------------------------
97void AliT0v1::CreateGeometry()
98{
99 //
100 // Create the geometry of T0 Detector version 0
101 //
102 // begin Html
103 /*
104 <img src="gif/AliT0v0.gif">
105 */
106 //
107
108
109 Int_t *idtmed = fIdtmed->GetArray();
110 /*
111 AliT0Parameters* param = AliT0Parameters::Instance();
112 param->Init();
113 Float_t zdetC = param->GetZposition(0);
114 Float_t zdetA = param->GetZposition(1);
115 */
116 Float_t zdetC = 69.7;
117 Float_t zdetA = 373.;
118
119 Int_t is;
120 Int_t idrotm[999];
121 Float_t x,y,z;
122 //C T0 mother volume
123 Float_t pstartR[18]={0., 360., 5.,
124 -6.8, 4.25, 10., //-76.5+0.00+69.7
125 -0.75 , 4.5, 10., // -76.5+6.05+69.7
126 1.25 , 4.5, 10., //-76.5+8.05+69.7
127 1.25 , 5.1, 10., //-76.5+8.05+69.7
128 6.8 , 5.1, 10.}; //-62.9+0.00+69.7
129
130 Float_t pstart[3]={4., 12.5,6.8};
131 Float_t pinstart[3]={0.,1.6,6.5};
132 Float_t ppmt[3]={0.,1.5,3.5};
133 Float_t ptop[3]={0.,1.,1.0};
134 Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
135 Float_t ptopout[3]={1.,1.01, 1.}; //metal air around raiator for photos reflection
136 Float_t pbot[3]={0.6,1.2,0.1};
137 Float_t pglass[3]={1.2,1.3,2.};
138 Float_t pcer[3]={0.9,1.1,1.35};
139 Float_t psteel[3]={0.9,1.1,0.15};
140 Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
141 Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi C
142 Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki C
143 Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu C
144 Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika Al
145 Float_t psupport7[3] = {1.5,1.6,0.4}; //kolechko snaruzhu stakanchika Al
146
147 // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
148 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
149 Float_t ppcon[70];
150 ppcon[0] = 0;
151 ppcon[1] = 360;
152 ppcon[2] = 13;
153// 1:
154 ppcon[3] = 7.2;
155 ppcon[4] = 4.4;
156 ppcon[5] = 4.5;
157// 2
158 ppcon[6] = 8.2;
159 ppcon[7] = 4.4;
160 ppcon[8] = 4.5;
161// 3
162 ppcon[9] = 8.2;
163 ppcon[10] = 4.4;
164 ppcon[11] = 5.1;
165
166// 4
167
168 ppcon[12] = 8.3;
169 ppcon[13] = 4.4;
170 ppcon[14] = 5.1;
171// 5
172
173 ppcon[15] = 8.3;
174 ppcon[16] = 4.9;
175 ppcon[17] = 5.1;
176
177// 6
178 ppcon[18] = 15.;
179 ppcon[19] = 4.9;
180 ppcon[20] = 5.1;
181
182// 7
183 ppcon[21] = 15.;
184 ppcon[22] = 3.15 ;
185 ppcon[23] = 5.1;
186
187/// 8
188 ppcon[24] = 15.01;
189 ppcon[25] = 3.15;
190 ppcon[26] = 5.1;
191
192/// 9
193 ppcon[27] = 15.01;
194 ppcon[28] = 3.15;
195 ppcon[29] = 3.25;
196
197
198/// 9
199 ppcon[30] = 19.71;
200 ppcon[31] = 3.15;
201 ppcon[32] = 3.25;
202// 10
203 ppcon[33] = 19.8;
204 ppcon[34] = 3.15;
205 ppcon[35] = 3.25;
206 // 11
207 ppcon[36] = 19.8;
208 ppcon[37] = 3.15;
209 ppcon[38] = 7.6;
210
211 // 14
212
213 ppcon[39] = 19.91;
214 ppcon[40] = 3.15;
215 ppcon[41] = 7.6;
216
217
218 gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
219 z = -zdetC;
220 gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
221
222//-------------------------------------------------------------------
223 // T0 volume
224 //-------------------------------------------------------------------
225
226
227 gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
dc7ca31d 228 gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
229 // gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
230
231//T0 interior
232 gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
233 gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);
234
235 gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
236 gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
237 gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
238 gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
239 // gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
240 gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
241 gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
242 gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
243
244
245
246 //non-absorber side support and T0A !!!!!!!!
247
248 TGeoPgon * supPgon = new TGeoPgon("supPgon",0.,360.,360,4);
249 supPgon->DefineSection(0, 0, 4.1, 5.5);
250 supPgon->DefineSection(1, 10.5 , 4.1, 5.5);
251 supPgon->DefineSection(2, 10.5 , 4.1, 4.9);
252 supPgon->DefineSection(3, 12.5 , 4.1, 4.9);
253 TGeoTranslation *trPgon = new TGeoTranslation("trPgon",0,0,0);
254 trPgon->RegisterYourself();
255
1b070c3c 256 TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
dc7ca31d 257 TGeoVolume *ins = gGeoManager->GetVolume("0INS");
258
2ee4b412 259 // Double_t phimin = TMath::ACos((16-4.8)/16.) * (180 / TMath::Pi()) ;
dc7ca31d 260 // TGeoTubeSeg *hole = new TGeoTubeSeg("hole", 0, 1.6, 0, -phimin+90, phimin+90);
2ee4b412 261 new TGeoTube("hole", 0, 1.61, 6.5);
dc7ca31d 262 TGeoTranslation *tr [12];
263 Float_t angle = 2 * TMath::Pi() / 12;
b92d4288 264 Char_t nameTr[40];
dc7ca31d 265 for (Int_t itr=0; itr<12; itr++) {
266 sprintf (nameTr,"tr%i",itr+1);
267 x = 6.5 * TMath::Sin(itr * angle);
268 y = 6.5 * TMath::Cos(itr * angle);
269 tr[itr] = new TGeoTranslation(nameTr,x,y,6.5);
270 tr[itr]->RegisterYourself();
271 stlin->AddNode(ins,itr+13,tr[itr]);
272 }
273 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)");
274
275 TGeoMedium *medal = gGeoManager->GetMedium("T0_Aluminium$");
276 TGeoVolume *supA = new TGeoVolume("0SUA",supsh,medal);
277 stlin->AddNode(supA,1,new TGeoTranslation(0,0,0));
278
279 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
280 alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ));
281
282 // T0A finished
283
284 //T0C
285// first ring: 12 units of Scintillator+PMT+divider
286 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetC);
287 Float_t phi[3];
288 for (is=0; is<12; is++)
289 {
290
291 x = 6.5 * TMath::Sin(is * angle);
292 y = 6.5 * TMath::Cos(is * angle);
293
294 phi[0] = -30 * is;
295 phi[1] = 90 - is * 30;
296 phi[2] = 90 - is * 30;
297 for (Int_t j = 0; j < 3; j++)
298 if (phi[j] < 0) phi[j] += 360;
299
300 AliMatrix (idrotm[902 + is], 90., phi[0],
301 90. + theta, phi[1],
302 theta, phi[2]);
303 z=-pstart[2]+pinstart[2]+0.2;
304 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
305 }
306
307 x=0;
308 y=0;
309 z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
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
342 z=-pstart[2]+psupport1[2]+0.1;
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
345 z=-pstart[2]+psupport3[2]+0.1;
346 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
347 z=-pstart[2]+2.*psupport1[2]-0.05;//+0.1;
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
350 z=-pinstart[2]+psupport6[2];
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);
405 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
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
420 TString volPath;
421 TString symName, sn;
422
423 TString vpA = "/ALIC_1/0STL_1/0INS_";
424 TString vpC = "/ALIC_1/0STR_1/0INS_";
425 TString vpInside = "/0PMT_1/0TOP_1";
426
dc7ca31d 427 for (Int_t imod=0; imod<24; imod++)
428 {
429 if (imod < 12)
1b070c3c 430 {volPath = vpC; sn="T0/C/PMT";}
431 else
432 {volPath = vpA; sn="T0/A/PMT";}
dc7ca31d 433 volPath += imod+1;
434 volPath += vpInside;
435
436 symName = sn;
437 symName += imod+1;
438
439 AliDebug(2,"--------------------------------------------");
440 AliDebug(2,Form("Alignable object %d", imod));
441 AliDebug(2,Form("volPath=%s\n",volPath.Data()));
442 AliDebug(2,Form("symName=%s\n",symName.Data()));
443 AliDebug(2,"--------------------------------------------");
1b070c3c 444 if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
445 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symName.Data(),volPath.Data()));
dc7ca31d 446
447 }
448}
449//------------------------------------------------------------------------
450void AliT0v1::CreateMaterials()
451{
452 Int_t isxfld = gAlice->Field()->Integ();
453 Float_t sxmgmx = gAlice->Field()->Max();
454 // Float_t a,z,d,radl,absl,buf[1];
455 // Int_t nbuf;
dc7ca31d 456// AIR
457
458 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
459 Float_t zAir[4]={6.,7.,8.,18.};
460 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
461 Float_t dAir = 1.20479E-3;
462
463// Scintillator CH
464 Float_t ascin[2]={1.01,12.01};
465 Float_t zscin[2]={1,6};
466 Float_t wscin[2]={1,1};
467 Float_t denscin=1.03;
468//Lucite C(CH3)CO2CH3
469 Float_t alucite[3]={1.01,12.01,15.999};
470 Float_t zlucite[3]={1,6,8};
471 Float_t wlucite[3]={8,5,2};
472 Float_t denlucite=1.16;
473 // PMT glass SiO2
474 Float_t aglass[2]={28.0855,15.9994};
475 Float_t zglass[2]={14.,8.};
476 Float_t wglass[2]={1.,2.};
477 Float_t dglass=2.65;
478// Ceramic 97.2% Al2O3 , 2.8% SiO2
479 // Float_t wcer[2]={0.972,0.028};
480 Float_t aCeramic[2] = { 26.981539,15.9994 };
481 Float_t zCeramic[2] = { 13.,8. };
482 Float_t wCeramic[2] = { 2.,3. };
483 Float_t denscer = 3.6;
484
485// Brass 80% Cu, 20% Zn
486 Float_t abrass[2] = {63.546,65.39};
487 Float_t zbrass[2] = {29,30};
488 Float_t wbrass[2] = {0.8,0.2};
489 Float_t denbrass=8.96;
490
491//Ribber C6H12S
492 Float_t aribber[3] = {12.,1.,32.};
493 Float_t zribber[3] = {6.,1.,16.};
494 Float_t wribber[3] = {6.,12.,1.};
495 Float_t denribber=0.8;
496// Support inside
497 Float_t asupport[2] = {12.,1.};
498 Float_t zsupport[2] = {6.,1.};
499 Float_t wsupport[2] = {1.,1.};
500 Float_t densupport=0.1;
501
502//*** Definition Of avaible T0 materials ***
503 AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
504 AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
505 AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
506 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
507 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
508
509 AliMixture( 3, "Ceramic $",aCeramic, zCeramic, denscer, -2, wCeramic);
510 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
511 /*
512 char namate[21]="";
513
514 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
515 acer[0]=a;
516
517 zcer[0]=z;
518 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
519 acer[1]=a;
520 zcer[1]=z;
521 AliMixture( 11, "Ceramic $", acer, zcer, denscer, 2, wcer);
522 */
523 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
524 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
525 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
526 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
527 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
528 AliMixture( 21, "PMT Optical glass $",aglass,zglass,dglass,-2,wglass);
529 AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
530 AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
531 AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
532
533 AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
534 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
535 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
536 AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
537 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
538 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
539 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
540 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
541 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
542 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
543 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
544 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
545 AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
546 AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
547 AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
548 AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
7235aed2 549
550 AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
551
552
553}
554//---------------------------------------------------------------------
555void AliT0v1::DrawDetector()
556{
557//
558// Draw a shaded view of the Forward multiplicity detector version 0
559//
560
561 //Set ALIC mother transparent
562 gMC->Gsatt("ALIC","SEEN",0);
563 //
564 //Set volumes visible
565 // gMC->Gsatt("0STR","SEEN",0);
566 // gMC->Gsatt("0INS","SEEN",0);
567 // gMC->Gsatt("0PMT","SEEN",1);
568 // gMC->Gsatt("0DIV","SEEN",1);
569 //
570 gMC->Gdopt("hide","off");
571 gMC->Gdopt("shad","on");
572 gMC->SetClipBox(".");
573 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
574 gMC->DefaultRange();
575 gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
576 //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
577 gMC->Gdhead(1111,"T-Zero detector");
578 gMC->Gdopt("hide","off");
579}
dc7ca31d 580
7235aed2 581//-------------------------------------------------------------------
661663fa 582void AliT0v1::DefineOpticalProperties()
7235aed2 583{
661663fa 584// Optical properties definition.
7235aed2 585 Int_t *idtmed = fIdtmed->GetArray();
dc7ca31d 586// Definition Cherenkov parameters
587 int i;
588 const Int_t kNbins=31;
589
590 Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
591
592 // quartz 20mm
593 Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4,
594 25.9, 25.3, 24.9, 24.5, 23.7,
595 23.2, 22.8, 22.4, 21.8, 21.3,
596 22.8, 22.1, 21.7, 21.2, 20.5,
597 19.9, 19.3, 18.7, 18.0, 17.1,
598 16.3, 15.3, 14.3, 14.3 };
599
600 Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
601 4.48, 4.58, 4.69, 4.81, 4.93,
602 5.05, 5.19, 5.33, 5.48, 5.63,
603 5.8, 5.97, 6.16, 6.36, 6.57,
604 6.8, 7.04, 7.3, 7.58, 7.89,
605 8.22, 8.57, 8.97, 9.39 };
606 /*
607 Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
608 0.21, 0.22, 0.23, 0.24, 0.26,
609 0.27, 0.29, 0.30, 0.29, 0.29,
610 0.28, 0.28, 0.27, 0.26, 0.25,
611 0.25, 0.23, 0.20, 0.19, 0.17,
612 0.17, 0.17, 0.2, 0.23};
613 */
614 // Float_t aAbsSiO2[kNbins]; //quartz 30mm
615 for(i=0;i<kNbins;i++)
616 {
617 aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV
618 rindexAir[i]=0;
619 rindexSiO2[i]=1.458; //refractive index for qwarts
620 rindexCathodeNext[i]=0;
621 efficAll[i]=1.;
622
623 // aAbsSiO2[i]=28.5; //quartz 30mm
624 absorAir[i]=0.3;
625 absorbCathodeNext[i]=0;
626
627 }
628
629
630 gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
631 // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
632 gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
633 gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
634 gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
661663fa 635}
dc7ca31d 636
661663fa 637//-------------------------------------------------------------------
638void AliT0v1::Init()
639{
640// Initialises version 0 of the Forward Multiplicity Detector
641//
642 AliT0::Init();
643 fIdSens1=gMC->VolId("0REG");
dc7ca31d 644
661663fa 645 AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
dc7ca31d 646}
647
648//-------------------------------------------------------------------
649
650void AliT0v1::StepManager()
651{
652 //
653 // Called for every step in the T0 Detector
654 //
655 Int_t id,copy,copy1;
656 static Float_t hits[6];
657 static Int_t vol[2];
658 TLorentzVector pos;
659
660 // TClonesArray &lhits = *fHits;
661
662 if(!gMC->IsTrackAlive()) return; // particle has disappeared
663
664
665 // If particles is photon then ...
666
667 if (gMC->TrackPid() == 50000050)
668 {
669 id=gMC->CurrentVolID(copy);
670
671
672 // Check the sensetive volume
673 if(id==fIdSens1 ) {
674 if(gMC->IsTrackEntering()) {
675 gMC->CurrentVolOffID(2,copy);
676 vol[1]=copy;
677 gMC->CurrentVolOffID(3,copy1);
678 vol[0]=copy1;
679 gMC->TrackPosition(pos);
680 hits[0] = pos[0];
681 hits[1] = pos[1];
682 hits[2] = pos[2];
683 if(pos[2]<0) vol[0]=2;
684 if(pos[2]>=0) vol[0]=1;
685
686 Float_t etot=gMC->Etot();
687 hits[3]=etot;
688 Int_t iPart= gMC->TrackPid();
689 Int_t partID=gMC->IdFromPDG(iPart);
690 hits[4]=partID;
691 Float_t ttime=gMC->TrackTime();
692 hits[5]=ttime*1e12;
693 if(RegisterPhotoE(vol[1]-1,hits[3]))
694 AddHit(fIshunt,vol,hits);
695
696 }
697 // cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
698
699 /*
700 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
701 gAlice->GetMCApp()->GetCurrentTrackNumber(),
702 gMC->IsTrackAlive(),
703 gMC->IsTrackDisappeared(),
704 gMC->IsTrackEntering(),
705 gMC->IsTrackExiting(),
706 gMC->IsTrackInside(),
707 gMC->IsTrackOut(),
708 gMC->IsTrackStop(),
709 gMC->IsNewTrack());
710 */
711 } //sensitive
712 } //photon
713}
714
715
716
717//------------------------------------------------------------------------
718Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
719{
720
721
722 // Float_t hc=197.326960*1.e6; //mev*nm
723 Double_t hc=1.973*1.e-6; //gev*nm
724 Float_t lambda=hc/energy;
725 Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
726 Double_t p = gRandom->Rndm();
727
728 if (p > eff)
729 return kFALSE;
730
731 return kTRUE;
732}
733
734//----------------------------------------------------------------------------
735
736
737
738
739
740