"Setting correct gains for Pb-p in simulation"
[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
f7a1cc68 34#include "TGeoCompositeShape.h"
dc7ca31d 35#include "TGeoManager.h"
268f57b1 36#include "TGeoMatrix.h"
06cb77ae 37#include "TGeoPcon.h"
dc7ca31d 38#include "TGeoTube.h"
f7a1cc68 39#include <TGeoGlobalMagField.h>
dc7ca31d 40#include <TGraph.h>
f7a1cc68 41#include <TLorentzVector.h>
42#include <TMath.h>
43#include <TVirtualMC.h>
f7350425 44#include <TString.h>
dc7ca31d 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"
fd38174f 59#include "AliTrackReference.h"
dc7ca31d 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
e906b7a3 126 // -0.75 , 4.45, 10., // -76.5+6.05+69.7
127 // 1.25 , 4.45, 10., //-76.5+8.05+69.7
128 -0.75 , 4.5, 10., // -76.5+6.05+69.7
129 1.25 , 4.5, 10., //-76.5+8.05+69.7
3af467f5 130 1.25 , 5.1, 10, //-76.5+8.05+69.7
dc7ca31d 131 6.8 , 5.1, 10.}; //-62.9+0.00+69.7
132
133 Float_t pstart[3]={4., 12.5,6.8};
e906b7a3 134 Float_t pinstart[3]={0.,1.45,6.5};
135 Float_t ppmt[3]={0.,1.4,3.5};
dc7ca31d 136 Float_t ptop[3]={0.,1.,1.0};
137 Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
138 Float_t ptopout[3]={1.,1.01, 1.}; //metal air around raiator for photos reflection
139 Float_t pbot[3]={0.6,1.2,0.1};
140 Float_t pglass[3]={1.2,1.3,2.};
141 Float_t pcer[3]={0.9,1.1,1.35};
142 Float_t psteel[3]={0.9,1.1,0.15};
e906b7a3 143 Float_t psupport1[3] = {4.51,4.52,4.0};//C kozhuh vnutri
f3c87c7b 144 Float_t psupport2[3] = {9.5,9.6,4.0};// snaruzhi C
123019fa 145 Float_t psupport3[3] = {4.52,9.5, 0.05};//kryshki C
e906b7a3 146 Float_t psupport5[3] = {1.44,1.45,6.5}; // stakanchik dlai feu C
dc7ca31d 147 Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika Al
e906b7a3 148 Float_t psupport7[3] = {1.44,1.45,0.4}; //kolechko snaruzhu stakanchika Al
dc7ca31d 149
150 // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
151 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
152 Float_t ppcon[70];
153 ppcon[0] = 0;
154 ppcon[1] = 360;
155 ppcon[2] = 13;
156// 1:
157 ppcon[3] = 7.2;
158 ppcon[4] = 4.4;
159 ppcon[5] = 4.5;
160// 2
161 ppcon[6] = 8.2;
162 ppcon[7] = 4.4;
163 ppcon[8] = 4.5;
164// 3
165 ppcon[9] = 8.2;
166 ppcon[10] = 4.4;
167 ppcon[11] = 5.1;
168
169// 4
170
171 ppcon[12] = 8.3;
172 ppcon[13] = 4.4;
173 ppcon[14] = 5.1;
174// 5
175
176 ppcon[15] = 8.3;
177 ppcon[16] = 4.9;
178 ppcon[17] = 5.1;
179
180// 6
181 ppcon[18] = 15.;
182 ppcon[19] = 4.9;
183 ppcon[20] = 5.1;
184
185// 7
186 ppcon[21] = 15.;
187 ppcon[22] = 3.15 ;
188 ppcon[23] = 5.1;
189
190/// 8
191 ppcon[24] = 15.01;
192 ppcon[25] = 3.15;
193 ppcon[26] = 5.1;
194
195/// 9
196 ppcon[27] = 15.01;
197 ppcon[28] = 3.15;
198 ppcon[29] = 3.25;
199
200
201/// 9
202 ppcon[30] = 19.71;
203 ppcon[31] = 3.15;
204 ppcon[32] = 3.25;
205// 10
206 ppcon[33] = 19.8;
207 ppcon[34] = 3.15;
208 ppcon[35] = 3.25;
209 // 11
210 ppcon[36] = 19.8;
211 ppcon[37] = 3.15;
212 ppcon[38] = 7.6;
213
214 // 14
215
3af467f5 216 ppcon[39] = 19.99;
dc7ca31d 217 ppcon[40] = 3.15;
218 ppcon[41] = 7.6;
219
220
2942f542 221 TVirtualMC::GetMC()->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
dc7ca31d 222 z = -zdetC;
2942f542 223 TVirtualMC::GetMC()->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
dc7ca31d 224
225//-------------------------------------------------------------------
226 // T0 volume
227 //-------------------------------------------------------------------
228
229
2942f542 230 TVirtualMC::GetMC()->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
231 TVirtualMC::GetMC()->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
232 // TVirtualMC::GetMC()->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
dc7ca31d 233
234//T0 interior
2942f542 235 TVirtualMC::GetMC()->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
236 TVirtualMC::GetMC()->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);
dc7ca31d 237
2942f542 238 TVirtualMC::GetMC()->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
239 TVirtualMC::GetMC()->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
240 TVirtualMC::GetMC()->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
241 TVirtualMC::GetMC()->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
242 // TVirtualMC::GetMC()->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
243 TVirtualMC::GetMC()->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
244 TVirtualMC::GetMC()->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
245 TVirtualMC::GetMC()->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
dc7ca31d 246
247
248
249 //non-absorber side support and T0A !!!!!!!!
250
f3c87c7b 251 TGeoPcon * supPgon = new TGeoPcon("0supPgon",0.,360.,4);
dc7ca31d 252 supPgon->DefineSection(0, 0, 4.1, 5.5);
253 supPgon->DefineSection(1, 10.5 , 4.1, 5.5);
254 supPgon->DefineSection(2, 10.5 , 4.1, 4.9);
255 supPgon->DefineSection(3, 12.5 , 4.1, 4.9);
f3c87c7b 256 TGeoTranslation *trPgon = new TGeoTranslation("0trPgon",0,0,0);
dc7ca31d 257 trPgon->RegisterYourself();
258
1b070c3c 259 TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
dc7ca31d 260 TGeoVolume *ins = gGeoManager->GetVolume("0INS");
261
f3c87c7b 262 new TGeoTube("0HOLE", 0, 1.51, 6.5);
dc7ca31d 263 TGeoTranslation *tr [12];
06cb77ae 264 Double_t angle = 2 * TMath::Pi() / 12;
f7350425 265 // Char_t nameTr[40];
266 TString nameTr;
dc7ca31d 267 for (Int_t itr=0; itr<12; itr++) {
f7350425 268 // sprintf (nameTr,"0TR%i",itr+1);
269 nameTr = Form("0TR%i",itr+1);
fe20da59 270 x = 6.5 * TMath::Sin(itr * angle);
dc7ca31d 271 y = 6.5 * TMath::Cos(itr * angle);
f7350425 272 tr[itr] = new TGeoTranslation(nameTr.Data(),x,y,6.5);
fe20da59 273 tr[itr]->RegisterYourself();
06cb77ae 274 stlin->AddNode(ins,itr+13,tr[itr]);
dc7ca31d 275 }
f3c87c7b 276 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 277
278 TGeoMedium *medal = gGeoManager->GetMedium("T0_Aluminium$");
279 TGeoVolume *supA = new TGeoVolume("0SUA",supsh,medal);
280 stlin->AddNode(supA,1,new TGeoTranslation(0,0,0));
281
282 TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
283 alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ));
284
285 // T0A finished
286
287 //T0C
288// first ring: 12 units of Scintillator+PMT+divider
17507186 289 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.6 / zdetC);
dc7ca31d 290 Float_t phi[3];
291 for (is=0; is<12; is++)
292 {
293
6e1147e5 294 x = 6.6 * TMath::Sin(is * angle);
295 y = 6.6 * TMath::Cos(is * angle);
dc7ca31d 296
297 phi[0] = -30 * is;
298 phi[1] = 90 - is * 30;
299 phi[2] = 90 - is * 30;
300 for (Int_t j = 0; j < 3; j++)
301 if (phi[j] < 0) phi[j] += 360;
302
303 AliMatrix (idrotm[902 + is], 90., phi[0],
304 90. + theta, phi[1],
305 theta, phi[2]);
17507186 306 z=-pstart[2]+pinstart[2]+0.3;
2942f542 307 TVirtualMC::GetMC()->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
dc7ca31d 308 }
309
310 x=0;
311 y=0;
17507186 312 // z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
f3c87c7b 313 z=-pinstart[2]+ppmt[2]+0.08; //+psupport6[2];
2942f542 314 TVirtualMC::GetMC()->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
dc7ca31d 315 // PMT
316
317 // Entry window (glass)
2942f542 318 TVirtualMC::GetMC()->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
dc7ca31d 319 z=-ppmt[2]+ptop[2];
2942f542 320 TVirtualMC::GetMC()->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 321 //"metal" air volume to simulate reclection
2942f542 322 TVirtualMC::GetMC()->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3);
323 TVirtualMC::GetMC()->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 324
325 //Fotokatod
2942f542 326 TVirtualMC::GetMC()->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3);
dc7ca31d 327 z = -ppmt[2] + 2 * ptop[2] + preg[2];
2942f542 328 TVirtualMC::GetMC()->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");
dc7ca31d 329 // Bottom glass
2942f542 330 TVirtualMC::GetMC()->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
dc7ca31d 331 z=ppmt[2]-pbot[2];
2942f542 332 TVirtualMC::GetMC()->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 333 // Side cylinder glass
2942f542 334 TVirtualMC::GetMC()->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
dc7ca31d 335 z=ppmt[2]-pglass[2];
2942f542 336 TVirtualMC::GetMC()->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 337 //PMT electrodes support structure
2942f542 338 TVirtualMC::GetMC()->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
339 TVirtualMC::GetMC()->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
dc7ca31d 340 z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
2942f542 341 TVirtualMC::GetMC()->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 342 z +=psteel[2]+pcer[2];
2942f542 343 TVirtualMC::GetMC()->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
dc7ca31d 344
345 //Support absorber (C) side
f3c87c7b 346 z=-pstart[2]+psupport1[2];// 0.05; //0.1;
2942f542 347 TVirtualMC::GetMC()->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
348 TVirtualMC::GetMC()->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
f3c87c7b 349 z=-pstart[2]+psupport3[2];// - 0.1;
2942f542 350 TVirtualMC::GetMC()->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
f3c87c7b 351 z=-pstart[2]+2.*psupport1[2];//+0.1;
2942f542 352 TVirtualMC::GetMC()->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
353 TVirtualMC::GetMC()->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
f3c87c7b 354 z=-pinstart[2]+psupport6[2]; //-0.1;
2942f542 355 TVirtualMC::GetMC()->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
dc7ca31d 356
357 z=pinstart[2]-psupport7[2];
2942f542 358 // TVirtualMC::GetMC()->Gspos("0SU8",1,"0SU6",0,0,z,0,"ONLY"); //Al kolechko
dc7ca31d 359
360
361 Float_t par[3];
362 par[0]=4.4;
363 par[1]=4.5;
364 par[2]=0.5;
2942f542 365 TVirtualMC::GetMC()->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
dc7ca31d 366 z=ppcon[3]+par[2];
2942f542 367 TVirtualMC::GetMC()->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 368 z += par[2];
369 par[0]=4.4;
370 par[1]=5.1;
371 par[2]=0.05;
2942f542 372 TVirtualMC::GetMC()->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
dc7ca31d 373 z += par[2];
2942f542 374 TVirtualMC::GetMC()->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 375 z=z+par[2];
376 par[0]=4.9;
377 par[1]=5.0;
378 par[2]=6.7/2;
2942f542 379 TVirtualMC::GetMC()->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
dc7ca31d 380 z += par[2];
2942f542 381 TVirtualMC::GetMC()->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 382 z += par[2];
383
384 par[0]=3.15;
385 par[1]=4.9;
3af467f5 386 par[2]=0.01/2;
387
2942f542 388 TVirtualMC::GetMC()->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
dc7ca31d 389
3af467f5 390 z += par[2];
391 // z -= par[2];
2942f542 392 TVirtualMC::GetMC()->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 393 z=z+par[2];
394 par[0]=3.15;
395 par[1]=3.16;
396 par[2]=4.7/2;
2942f542 397 TVirtualMC::GetMC()->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
dc7ca31d 398 z += par[2];
2942f542 399 TVirtualMC::GetMC()->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 400 z=z+par[2];
401 par[0]=3.16; // eta chast' prikruchena k absorberu
3af467f5 402 par[1]=7.4;
403 par[2]=0.01;
2942f542 404 TVirtualMC::GetMC()->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
3af467f5 405 // z += par[2];
406 z = ppcon[39] - par[2];
2942f542 407 TVirtualMC::GetMC()->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
dc7ca31d 408 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
3af467f5 409 par[1]=7.4;
dc7ca31d 410 par[2]=0.01;
2942f542 411 TVirtualMC::GetMC()->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
412 TVirtualMC::GetMC()->Gspos("0SN2",1,"0SUP",0,0,z,0,"MANY");
dc7ca31d 413
414
415
416
417}
418//------------------------------------------------------------------------
419void AliT0v1::AddAlignableVolumes() const
420{
421 //
422 // Create entries for alignable volumes associating the symbolic volume
423 // name with the corresponding volume path. Needs to be syncronized with
424 // eventual changes in the geometry.
425 //
426
06cb77ae 427 // TString volPath;
428 // TString symName, sn;
429
430
431
432
dc7ca31d 433 TString volPath;
434 TString symName, sn;
435
436 TString vpA = "/ALIC_1/0STL_1/0INS_";
437 TString vpC = "/ALIC_1/0STR_1/0INS_";
438 TString vpInside = "/0PMT_1/0TOP_1";
06cb77ae 439 TString vpAalign = "/ALIC_1/0STL_1";
440 TString vpCalign = "/ALIC_1/0STR_1";
441
442 for (Int_t imod=0; imod<26; imod++)
443 {
444 if (imod < 24)
445 {
446 if (imod < 12)
447 { volPath = vpC; sn="T0/C/PMT";}
448 else
449 { volPath = vpA; sn="T0/A/PMT";}
450 volPath += imod+1;
451 volPath += vpInside;
452 symName = sn;
453 symName += imod+1;
454 }
455 else if (imod == 24)
456 {volPath = vpCalign; symName="/ALIC_1/0STR_1";}
457 else
458 {volPath = vpAalign; symName="/ALIC_1/0STL_1";}
dc7ca31d 459
06cb77ae 460 AliDebug(2,"--------------------------------------------");
461 AliDebug(2,Form("Alignable object %d", imod));
462 AliDebug(2,Form("volPath=%s\n",volPath.Data()));
463 AliDebug(2,Form("symName=%s\n",symName.Data()));
464 AliDebug(2,"--------------------------------------------");
465 if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
466 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
467symName.Data(),volPath.Data()));
468 }
dc7ca31d 469}
470//------------------------------------------------------------------------
471void AliT0v1::CreateMaterials()
472{
f7a1cc68 473 Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
474 Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
dc7ca31d 475 // Float_t a,z,d,radl,absl,buf[1];
476 // Int_t nbuf;
dc7ca31d 477// AIR
478
479 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
480 Float_t zAir[4]={6.,7.,8.,18.};
481 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
482 Float_t dAir = 1.20479E-3;
1972973f 483 Float_t dAir1 = 1.20479E-11;
484
dc7ca31d 485// Scintillator CH
486 Float_t ascin[2]={1.01,12.01};
487 Float_t zscin[2]={1,6};
488 Float_t wscin[2]={1,1};
489 Float_t denscin=1.03;
490//Lucite C(CH3)CO2CH3
491 Float_t alucite[3]={1.01,12.01,15.999};
492 Float_t zlucite[3]={1,6,8};
493 Float_t wlucite[3]={8,5,2};
494 Float_t denlucite=1.16;
495 // PMT glass SiO2
496 Float_t aglass[2]={28.0855,15.9994};
497 Float_t zglass[2]={14.,8.};
498 Float_t wglass[2]={1.,2.};
499 Float_t dglass=2.65;
500// Ceramic 97.2% Al2O3 , 2.8% SiO2
501 // Float_t wcer[2]={0.972,0.028};
502 Float_t aCeramic[2] = { 26.981539,15.9994 };
503 Float_t zCeramic[2] = { 13.,8. };
504 Float_t wCeramic[2] = { 2.,3. };
505 Float_t denscer = 3.6;
506
507// Brass 80% Cu, 20% Zn
508 Float_t abrass[2] = {63.546,65.39};
509 Float_t zbrass[2] = {29,30};
510 Float_t wbrass[2] = {0.8,0.2};
511 Float_t denbrass=8.96;
512
513//Ribber C6H12S
514 Float_t aribber[3] = {12.,1.,32.};
515 Float_t zribber[3] = {6.,1.,16.};
516 Float_t wribber[3] = {6.,12.,1.};
517 Float_t denribber=0.8;
518// Support inside
519 Float_t asupport[2] = {12.,1.};
520 Float_t zsupport[2] = {6.,1.};
521 Float_t wsupport[2] = {1.,1.};
522 Float_t densupport=0.1;
523
524//*** Definition Of avaible T0 materials ***
525 AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
1972973f 526 AliMixture(1, "Vacuum$", aAir, zAir, dAir1,4,wAir);
dc7ca31d 527 AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
528 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
529 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
530
531 AliMixture( 3, "Ceramic $",aCeramic, zCeramic, denscer, -2, wCeramic);
532 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
533 /*
534 char namate[21]="";
535
2942f542 536 TVirtualMC::GetMC()->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
dc7ca31d 537 acer[0]=a;
538
539 zcer[0]=z;
2942f542 540 TVirtualMC::GetMC()->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
dc7ca31d 541 acer[1]=a;
542 zcer[1]=z;
543 AliMixture( 11, "Ceramic $", acer, zcer, denscer, 2, wcer);
544 */
545 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
546 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
547 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
548 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
549 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
550 AliMixture( 21, "PMT Optical glass $",aglass,zglass,dglass,-2,wglass);
551 AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
552 AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
553 AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
554
555 AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
556 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
557 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
558 AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
559 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
560 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
561 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
562 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
563 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
564 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
565 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
566 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
567 AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
568 AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
569 AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
570 AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
7235aed2 571
572 AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
573
574
575}
dc7ca31d 576
7235aed2 577//-------------------------------------------------------------------
661663fa 578void AliT0v1::DefineOpticalProperties()
7235aed2 579{
661663fa 580// Optical properties definition.
7235aed2 581 Int_t *idtmed = fIdtmed->GetArray();
dc7ca31d 582// Definition Cherenkov parameters
583 int i;
584 const Int_t kNbins=31;
585
586 Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
2d2427f0 587 Double_t efficMet[kNbins], aReflMet[kNbins];
588
dc7ca31d 589 // quartz 20mm
590 Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4,
591 25.9, 25.3, 24.9, 24.5, 23.7,
592 23.2, 22.8, 22.4, 21.8, 21.3,
593 22.8, 22.1, 21.7, 21.2, 20.5,
594 19.9, 19.3, 18.7, 18.0, 17.1,
595 16.3, 15.3, 14.3, 14.3 };
596
597 Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
598 4.48, 4.58, 4.69, 4.81, 4.93,
599 5.05, 5.19, 5.33, 5.48, 5.63,
600 5.8, 5.97, 6.16, 6.36, 6.57,
601 6.8, 7.04, 7.3, 7.58, 7.89,
602 8.22, 8.57, 8.97, 9.39 };
2d2427f0 603 Double_t dPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
604 4.48, 4.58, 4.69, 4.81, 4.93,
605 5.05, 5.19, 5.33, 5.48, 5.63,
606 5.8, 5.97, 6.16, 6.36, 6.57,
607 6.8, 7.04, 7.3, 7.58, 7.89,
608 8.22, 8.57, 8.97, 9.39 };
609
dc7ca31d 610 /*
611 Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
612 0.21, 0.22, 0.23, 0.24, 0.26,
613 0.27, 0.29, 0.30, 0.29, 0.29,
614 0.28, 0.28, 0.27, 0.26, 0.25,
615 0.25, 0.23, 0.20, 0.19, 0.17,
616 0.17, 0.17, 0.2, 0.23};
617 */
618 // Float_t aAbsSiO2[kNbins]; //quartz 30mm
2d2427f0 619 for(i=0;i<kNbins;i++)
fb63e63c 620
dc7ca31d 621 {
fb63e63c 622 aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV
623 dPckov[i]=dPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV
71105263 624 // rindexAir[i]=0.0001;
625 rindexAir[i] = 1.;
dc7ca31d 626 rindexSiO2[i]=1.458; //refractive index for qwarts
627 rindexCathodeNext[i]=0;
628 efficAll[i]=1.;
2d2427f0 629 efficMet[i]=0.;
630 aReflMet[i]=1.;
dc7ca31d 631 // aAbsSiO2[i]=28.5; //quartz 30mm
632 absorAir[i]=0.3;
633 absorbCathodeNext[i]=0;
634
635 }
636
2942f542 637 TVirtualMC::GetMC()->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
638 // TVirtualMC::GetMC()->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
639 TVirtualMC::GetMC()->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
640 TVirtualMC::GetMC()->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
641 TVirtualMC::GetMC()->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
2d2427f0 642
643 //Define a boarder for radiator optical properties
2942f542 644 TVirtualMC::GetMC()->DefineOpSurface("surfRd", kUnified /*kGlisur*/,kDielectric_metal,kPolished, 0.);
645 TVirtualMC::GetMC()->SetMaterialProperty("surfRd", "EFFICIENCY", kNbins, dPckov, efficMet);
646 TVirtualMC::GetMC()->SetMaterialProperty("surfRd", "REFLECTIVITY", kNbins, dPckov, aReflMet);
647 TVirtualMC::GetMC()->SetBorderSurface("0TOPborder", "0TOP",1,"0TOO",1, "surfRd");
2d2427f0 648
649
661663fa 650}
dc7ca31d 651
661663fa 652//-------------------------------------------------------------------
653void AliT0v1::Init()
654{
655// Initialises version 0 of the Forward Multiplicity Detector
656//
657 AliT0::Init();
2942f542 658 fIdSens1=TVirtualMC::GetMC()->VolId("0REG");
dc7ca31d 659
661663fa 660 AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
dc7ca31d 661}
662
663//-------------------------------------------------------------------
664
665void AliT0v1::StepManager()
666{
667 //
668 // Called for every step in the T0 Detector
669 //
670 Int_t id,copy,copy1;
671 static Float_t hits[6];
672 static Int_t vol[2];
673 TLorentzVector pos;
fd38174f 674 TLorentzVector mom;
dc7ca31d 675
676 // TClonesArray &lhits = *fHits;
677
2942f542 678 if(!TVirtualMC::GetMC()->IsTrackAlive()) return; // particle has disappeared
dc7ca31d 679
2942f542 680 id=TVirtualMC::GetMC()->CurrentVolID(copy);
dc7ca31d 681
12a0111b 682 // Check the sensetive volume
683 if(id==fIdSens1 ) {
2942f542 684 if(TVirtualMC::GetMC()->IsTrackEntering()) {
685 TVirtualMC::GetMC()->CurrentVolOffID(2,copy);
12a0111b 686 vol[1]=copy;
2942f542 687 TVirtualMC::GetMC()->CurrentVolOffID(3,copy1);
12a0111b 688 vol[0]=copy1;
2942f542 689 TVirtualMC::GetMC()->TrackPosition(pos);
12a0111b 690 hits[0] = pos[0];
691 hits[1] = pos[1];
692 hits[2] = pos[2];
693 if(pos[2]<0) vol[0] = 2;
694 if(pos[2]>=0) vol[0] = 1;
dc7ca31d 695
2942f542 696 Float_t etot=TVirtualMC::GetMC()->Etot();
12a0111b 697 hits[3]=etot;
2942f542 698 Int_t iPart= TVirtualMC::GetMC()->TrackPid();
699 Int_t partID=TVirtualMC::GetMC()->IdFromPDG(iPart);
12a0111b 700 hits[4]=partID;
2942f542 701 Float_t ttime=TVirtualMC::GetMC()->TrackTime();
12a0111b 702 hits[5]=ttime*1e12;
2942f542 703 if (TVirtualMC::GetMC()->TrackPid() == 50000050) // If particles is photon then ...
12a0111b 704 {
705 if(RegisterPhotoE(vol[1]-1,hits[3])) {
706 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
707 // Create a track reference at the exit of photocatode
708 }
709 }
710
711 //charge particle
2942f542 712 if ( TVirtualMC::GetMC()->TrackCharge() )
12a0111b 713 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kT0);
dc7ca31d 714
dc7ca31d 715 /*
716 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
717 gAlice->GetMCApp()->GetCurrentTrackNumber(),
2942f542 718 TVirtualMC::GetMC()->IsTrackAlive(),
719 TVirtualMC::GetMC()->IsTrackDisappeared(),
720 TVirtualMC::GetMC()->IsTrackEntering(),
721 TVirtualMC::GetMC()->IsTrackExiting(),
722 TVirtualMC::GetMC()->IsTrackInside(),
723 TVirtualMC::GetMC()->IsTrackOut(),
724 TVirtualMC::GetMC()->IsTrackStop(),
725 TVirtualMC::GetMC()->IsNewTrack());
12a0111b 726 */
727 }// trck entering
728 } //sensitive
729
dc7ca31d 730}
731
732
733
734//------------------------------------------------------------------------
735Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
736{
737
738
739 // Float_t hc=197.326960*1.e6; //mev*nm
740 Double_t hc=1.973*1.e-6; //gev*nm
741 Float_t lambda=hc/energy;
742 Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
743 Double_t p = gRandom->Rndm();
744
745 if (p > eff)
746 return kFALSE;
747
748 return kTRUE;
749}
750
751//----------------------------------------------------------------------------
752
753
754
755
756
757