Protection against wrong trigger bc mask pattern
[u/mrichter/AliRoot.git] / T0 / AliT0v1.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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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 "TGeoMatrix.h"
42 #include "TGeoPcon.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
61 ClassImp(AliT0v1)
62
63
64 //--------------------------------------------------------------------
65 AliT0v1::AliT0v1():  AliT0(),
66                      fIdSens1(0),
67                      fEffPMT(0x0)
68
69 {
70   //
71   // Standart constructor for T0 Detector version 0
72 }
73 //--------------------------------------------------------------------
74 AliT0v1::AliT0v1(const char *name, const char *title):
75   AliT0(name,title),
76   fIdSens1(0),
77   fEffPMT(0x0)
78
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
92 AliT0v1::~AliT0v1() 
93 {
94   // desctructor  
95 }
96
97 //-------------------------------------------------------------------------
98 void 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   Double_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 , 4.45, 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
130                        1.25 , 5.1, 10, //-76.5+8.05+69.7 
131                        6.8 , 5.1, 10.};  //-62.9+0.00+69.7
132   
133   Float_t pstart[3]={4., 12.5,6.8};
134   Float_t pinstart[3]={0.,1.45,6.5};
135   Float_t ppmt[3]={0.,1.4,3.5};
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};
143   Float_t psupport1[3] = {4.51,4.52,4.0};//C kozhuh vnutri
144   Float_t psupport2[3] = {9.5,9.6,4.0};// snaruzhi  C
145   Float_t psupport3[3] = {4.52,9.5, 0.05};//kryshki  C
146   Float_t psupport5[3] = {1.44,1.45,6.5}; // stakanchik dlai feu  C
147   Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika  Al
148   Float_t psupport7[3] = {1.44,1.45,0.4}; //kolechko snaruzhu stakanchika Al
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
216     ppcon[39] =  19.99;
217     ppcon[40] =  3.15;
218     ppcon[41] =  7.6;
219
220
221     gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
222     z = -zdetC;
223     gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
224    
225 //-------------------------------------------------------------------
226  //  T0 volume 
227  //-------------------------------------------------------------------
228   
229     
230     gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
231     gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
232     // gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
233
234 //T0 interior
235    gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
236    gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);     
237           
238     gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
239     gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi  C
240     gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai  C
241     gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai  C
242     //    gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
243     gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu  C
244     gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika  Al
245     gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
246    
247  
248
249    //non-absorber side support  and T0A !!!!!!!!
250     
251     TGeoPcon * supPgon = new TGeoPcon("0supPgon",0.,360.,4);
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);
256     TGeoTranslation *trPgon = new TGeoTranslation("0trPgon",0,0,0);
257     trPgon->RegisterYourself();
258  
259     TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
260     TGeoVolume *ins = gGeoManager->GetVolume("0INS");
261
262     new TGeoTube("0HOLE", 0, 1.51, 6.5);
263     TGeoTranslation *tr [12];
264     Double_t angle  = 2 * TMath::Pi() / 12;
265     Char_t nameTr[40];
266     for (Int_t itr=0; itr<12; itr++) {
267       sprintf (nameTr,"0TR%i",itr+1);
268       x = 6.5 * TMath::Sin(itr * angle);
269       y = 6.5 * TMath::Cos(itr * angle);
270       tr[itr] = new TGeoTranslation(nameTr,x,y,6.5);
271       tr[itr]->RegisterYourself();
272       stlin->AddNode(ins,itr+13,tr[itr]);
273     }
274     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)");
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
287   Float_t  theta  = (180 / TMath::Pi()) * TMath::ATan(6.6 / zdetC);
288   Float_t phi[3];
289    for (is=0; is<12; is++)
290       {  
291
292         x = 6.6 * TMath::Sin(is * angle);
293         y = 6.6 * TMath::Cos(is * angle);
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]+0.3;
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    z=-pinstart[2]+ppmt[2]+0.08; //+psupport6[2];
312    gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
313    // PMT
314    
315    // Entry window (glass)
316    gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
317    z=-ppmt[2]+ptop[2];
318    gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
319    //"metal" air volume to simulate reclection  
320    gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3); 
321    gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
322
323    //Fotokatod
324    gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3); 
325    z = -ppmt[2] + 2 * ptop[2] + preg[2]; 
326    gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); 
327   // Bottom glass
328    gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
329    z=ppmt[2]-pbot[2];
330    gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
331    // Side cylinder glass
332    gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
333    z=ppmt[2]-pglass[2];
334    gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
335    //PMT electrodes support structure
336    gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
337    gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
338    z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
339    gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
340    z +=psteel[2]+pcer[2];
341    gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
342     
343    //Support absorber (C) side
344    z=-pstart[2]+psupport1[2];//  0.05; //0.1;
345    gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
346    gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
347    z=-pstart[2]+psupport3[2];//  - 0.1;
348    gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
349    z=-pstart[2]+2.*psupport1[2];//+0.1;
350    gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
351    gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu 
352    z=-pinstart[2]+psupport6[2]; //-0.1;
353    gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka 
354    
355    z=pinstart[2]-psupport7[2];
356    gMC->Gspos("0SU8",1,"0SU6",0,0,z,0,"ONLY"); //Al kolechko
357    
358    
359    Float_t par[3];
360    par[0]=4.4;
361    par[1]=4.5;
362    par[2]=0.5;
363    gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
364    z=ppcon[3]+par[2];
365    gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY"); 
366    z += par[2];
367    par[0]=4.4;
368    par[1]=5.1;
369    par[2]=0.05;
370    gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
371    z += par[2];
372    gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY"); 
373    z=z+par[2];
374    par[0]=4.9;
375    par[1]=5.0;
376    par[2]=6.7/2;
377     gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
378     z += par[2];
379     gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY"); 
380     z += par[2];
381    
382     par[0]=3.15;
383     par[1]=4.9;
384     par[2]=0.01/2;
385
386     gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
387     
388      z += par[2];
389      //  z -= par[2];
390     gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY"); 
391     z=z+par[2];
392     par[0]=3.15;
393     par[1]=3.16;
394     par[2]=4.7/2;
395     gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
396     z += par[2];
397     gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY"); 
398     z=z+par[2];
399     par[0]=3.16; // eta chast' prikruchena k absorberu
400     par[1]=7.4;
401     par[2]=0.01;
402     gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
403     //   z += par[2];
404    z = ppcon[39] - par[2];
405     gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY"); 
406     par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
407     par[1]=7.4;
408     par[2]=0.01;
409     gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
410     gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"MANY"); 
411  
412    
413
414  
415 }    
416 //------------------------------------------------------------------------
417 void AliT0v1::AddAlignableVolumes() const
418 {
419   //
420   // Create entries for alignable volumes associating the symbolic volume
421   // name with the corresponding volume path. Needs to be syncronized with
422   // eventual changes in the geometry.
423   //
424
425   // TString volPath;
426   // TString symName, sn;
427   
428
429
430
431   TString volPath;
432   TString symName, sn;
433
434   TString vpA  = "/ALIC_1/0STL_1/0INS_";
435   TString vpC  = "/ALIC_1/0STR_1/0INS_";
436   TString vpInside  = "/0PMT_1/0TOP_1";
437   TString vpAalign = "/ALIC_1/0STL_1";
438   TString vpCalign = "/ALIC_1/0STR_1";
439   
440   for (Int_t imod=0; imod<26; imod++)
441     {
442       if (imod < 24)
443       {
444        if (imod < 12)
445          { volPath  = vpC; sn="T0/C/PMT";}
446         else
447           { volPath  = vpA; sn="T0/A/PMT";}
448       volPath += imod+1;
449       volPath += vpInside;
450       symName = sn;
451      symName += imod+1;
452      }
453      else if (imod == 24)
454        {volPath  = vpCalign; symName="/ALIC_1/0STR_1";}
455      else
456        {volPath  = vpAalign; symName="/ALIC_1/0STL_1";}
457
458       AliDebug(2,"--------------------------------------------");
459       AliDebug(2,Form("Alignable object %d", imod));
460       AliDebug(2,Form("volPath=%s\n",volPath.Data()));
461       AliDebug(2,Form("symName=%s\n",symName.Data()));
462       AliDebug(2,"--------------------------------------------");
463       if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
464        AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
465 symName.Data(),volPath.Data()));
466    }
467   /*
468   for (Int_t imod=0; imod<24; imod++)
469     {
470        if (imod < 12)
471          { volPath  = vpC; sn="T0/C/PMT";}
472         else
473           { volPath  = vpA; sn="T0/A/PMT";}
474       volPath += imod+1;
475       volPath += vpInside;
476       symName = sn;
477       symName += imod+1;
478     
479
480       AliDebug(2,"--------------------------------------------");
481       AliDebug(2,Form("Alignable object %d", imod));
482       AliDebug(2,Form("volPath=%s\n",volPath.Data()));
483       AliDebug(2,Form("symName=%s\n",symName.Data()));
484       AliDebug(2,"--------------------------------------------");
485       if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
486        AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
487 symName.Data(),volPath.Data()));
488    }
489   */
490 }   
491 //------------------------------------------------------------------------
492 void AliT0v1::CreateMaterials()
493 {
494    Int_t isxfld   = gAlice->Field()->Integ();
495    Float_t sxmgmx = gAlice->Field()->Max();
496    //   Float_t a,z,d,radl,absl,buf[1];
497    // Int_t nbuf;
498 // AIR
499                                                                                 
500    Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
501    Float_t zAir[4]={6.,7.,8.,18.};
502    Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
503    Float_t dAir = 1.20479E-3;
504                                                                                 
505 // Scintillator CH
506    Float_t ascin[2]={1.01,12.01};
507    Float_t zscin[2]={1,6};
508    Float_t wscin[2]={1,1};
509    Float_t denscin=1.03;
510 //Lucite C(CH3)CO2CH3
511    Float_t alucite[3]={1.01,12.01,15.999};
512    Float_t zlucite[3]={1,6,8};
513    Float_t wlucite[3]={8,5,2};
514    Float_t denlucite=1.16;
515  // PMT glass SiO2
516    Float_t aglass[2]={28.0855,15.9994};
517    Float_t zglass[2]={14.,8.};
518    Float_t wglass[2]={1.,2.};
519    Float_t dglass=2.65;
520 // Ceramic   97.2% Al2O3 , 2.8% SiO2
521    // Float_t wcer[2]={0.972,0.028};
522    Float_t aCeramic[2]  = { 26.981539,15.9994 };
523    Float_t zCeramic[2]  = { 13.,8. };
524    Float_t wCeramic[2]  = { 2.,3. };
525    Float_t denscer  = 3.6;
526
527 // Brass 80% Cu, 20% Zn
528    Float_t abrass[2] = {63.546,65.39};
529    Float_t zbrass[2] = {29,30};
530    Float_t wbrass[2] = {0.8,0.2};
531    Float_t denbrass=8.96;
532
533 //Ribber C6H12S
534    Float_t aribber[3] = {12.,1.,32.};
535    Float_t zribber[3] = {6.,1.,16.};
536    Float_t wribber[3] = {6.,12.,1.};
537    Float_t denribber=0.8;
538 // Support inside 
539    Float_t asupport[2] = {12.,1.};
540    Float_t zsupport[2] = {6.,1.};
541    Float_t wsupport[2] = {1.,1.};
542    Float_t densupport=0.1;
543     
544 //*** Definition Of avaible T0 materials ***
545    AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
546    AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
547    AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
548    AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999); 
549    AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999); 
550
551    AliMixture( 3, "Ceramic  $",aCeramic, zCeramic, denscer, -2, wCeramic);
552    AliMixture( 4, "PMT glass   $",aglass,zglass,dglass,-2,wglass);
553    /* 
554   char namate[21]="";
555   
556    gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
557    acer[0]=a;  
558
559    zcer[0]=z;
560    gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
561    acer[1]=a;
562    zcer[1]=z;
563    AliMixture( 11, "Ceramic    $", acer, zcer, denscer, 2, wcer);
564    */ 
565     AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
566    AliMixture( 6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
567    AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
568    AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
569    AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
570    AliMixture( 21, "PMT Optical glass   $",aglass,zglass,dglass,-2,wglass);
571    AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
572     AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
573    AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
574    
575    AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
576    AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
577    AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
578    AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
579    AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
580    AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
581    AliMedium(9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
582    AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
583    AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
584    AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
585    AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
586    AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
587    AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
588    AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
589    AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
590     AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
591    
592    AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
593    
594    
595 }
596 //---------------------------------------------------------------------
597 void AliT0v1::DrawDetector()
598 {
599 //
600 // Draw a shaded view of the Forward multiplicity detector version 0
601 //
602   
603   //Set ALIC mother transparent
604   gMC->Gsatt("ALIC","SEEN",0);
605   //
606   //Set volumes visible
607   //  gMC->Gsatt("0STR","SEEN",0);
608   //  gMC->Gsatt("0INS","SEEN",0);
609   // gMC->Gsatt("0PMT","SEEN",1);
610   // gMC->Gsatt("0DIV","SEEN",1);
611   //
612   gMC->Gdopt("hide","off");
613   gMC->Gdopt("shad","on");
614   gMC->SetClipBox(".");
615   gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
616   gMC->DefaultRange();
617   gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
618   //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
619   gMC->Gdhead(1111,"T-Zero detector");
620   gMC->Gdopt("hide","off");
621 }
622
623 //-------------------------------------------------------------------
624 void AliT0v1::DefineOpticalProperties()
625 {
626 // Optical properties definition.
627    Int_t *idtmed = fIdtmed->GetArray();
628 // Definition Cherenkov parameters
629    int i;
630    const Int_t kNbins=31;
631    
632    Float_t rindexSiO2[kNbins],  efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
633             
634    // quartz 20mm
635    Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4, 
636                              25.9, 25.3, 24.9, 24.5, 23.7, 
637                              23.2, 22.8, 22.4, 21.8, 21.3,
638                              22.8, 22.1, 21.7, 21.2, 20.5, 
639                              19.9, 19.3, 18.7, 18.0, 17.1, 
640                              16.3, 15.3, 14.3, 14.3   };
641           
642    Float_t aPckov[kNbins]  ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
643                              4.48, 4.58, 4.69, 4.81, 4.93, 
644                              5.05, 5.19, 5.33, 5.48, 5.63,
645                              5.8,  5.97, 6.16, 6.36, 6.57, 
646                              6.8,  7.04, 7.3,  7.58, 7.89, 
647                              8.22, 8.57, 8.97, 9.39 };  
648    /*     
649    Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
650                               0.21, 0.22, 0.23, 0.24, 0.26, 
651                               0.27, 0.29, 0.30, 0.29, 0.29, 
652                               0.28, 0.28, 0.27, 0.26, 0.25, 
653                               0.25, 0.23, 0.20, 0.19, 0.17,
654                               0.17, 0.17, 0.2, 0.23};
655    */     
656    //  Float_t aAbsSiO2[kNbins]; //quartz 30mm
657   for(i=0;i<kNbins;i++)
658     {
659       aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV   
660       rindexAir[i]=0;
661       rindexSiO2[i]=1.458; //refractive index for qwarts
662       rindexCathodeNext[i]=0;
663       efficAll[i]=1.;
664
665       //      aAbsSiO2[i]=28.5; //quartz 30mm
666       absorAir[i]=0.3;      
667       absorbCathodeNext[i]=0;
668
669     }
670   
671   
672    gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
673    // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
674    gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
675   gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
676    gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
677 }
678
679 //-------------------------------------------------------------------
680 void AliT0v1::Init()
681 {
682 // Initialises version 0 of the Forward Multiplicity Detector
683 //
684   AliT0::Init();
685   fIdSens1=gMC->VolId("0REG");
686
687    AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
688 }
689
690 //-------------------------------------------------------------------
691
692 void AliT0v1::StepManager()
693 {
694   //
695   // Called for every step in the T0 Detector
696   //
697   Int_t id,copy,copy1;
698   static Float_t hits[6];
699   static Int_t vol[2];
700   TLorentzVector pos;
701   
702   //   TClonesArray &lhits = *fHits;
703   
704   if(!gMC->IsTrackAlive()) return; // particle has disappeared
705   
706   
707     // If particles is photon then ...
708   
709  if (gMC->TrackPid() == 50000050)
710   {
711       id=gMC->CurrentVolID(copy);
712       
713       
714       // Check the sensetive volume
715       if(id==fIdSens1 ) { 
716         if(gMC->IsTrackEntering()) {
717             gMC->CurrentVolOffID(2,copy);
718             vol[1]=copy;
719             gMC->CurrentVolOffID(3,copy1);
720             vol[0]=copy1;
721             gMC->TrackPosition(pos);
722             hits[0] = pos[0];
723             hits[1] = pos[1];
724             hits[2] = pos[2];
725             if(pos[2]<0) vol[0]=2;
726             if(pos[2]>=0) vol[0]=1; 
727             
728             Float_t etot=gMC->Etot();
729             hits[3]=etot;
730             Int_t iPart= gMC->TrackPid();
731             Int_t partID=gMC->IdFromPDG(iPart);
732             hits[4]=partID;
733             Float_t ttime=gMC->TrackTime();
734             hits[5]=ttime*1e12;
735             if(RegisterPhotoE(vol[1]-1,hits[3])) 
736               AddHit(fIshunt,vol,hits);
737             
738           }
739           //  cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
740         
741         /*              
742                 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
743                        gAlice->GetMCApp()->GetCurrentTrackNumber(),
744                gMC->IsTrackAlive(),
745                gMC->IsTrackDisappeared(),
746                gMC->IsTrackEntering(),
747                gMC->IsTrackExiting(),
748                gMC->IsTrackInside(),
749                gMC->IsTrackOut(),
750                gMC->IsTrackStop(),
751                gMC->IsNewTrack());
752         */              
753       } //sensitive
754   } //photon
755 }
756
757
758
759 //------------------------------------------------------------------------
760 Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
761 {
762
763   
764   //  Float_t hc=197.326960*1.e6; //mev*nm
765   Double_t hc=1.973*1.e-6; //gev*nm
766   Float_t lambda=hc/energy;
767   Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
768   Double_t  p = gRandom->Rndm();
769
770   if (p > eff)
771     return kFALSE;
772   
773   return kTRUE;
774 }
775
776 //----------------------------------------------------------------------------
777
778
779
780
781
782