Task for analysis T0 data
[u/mrichter/AliRoot.git] / T0 / AliT0v0.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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15
16 /* $Id$ */
17
18 /////////////////////////////////////////////////////////////////////
19 //                                                                 //
20 // T0 ( T-zero) detector  version 0                        //
21 //
22 //Begin Html       
23 /*
24 <img src="gif/AliT0v0Class.gif">
25 */
26 //End Html
27 //                                                                  //
28 //                                                                  //
29 //////////////////////////////////////////////////////////////////////
30
31 #include <Riostream.h>
32 #include <stdlib.h>
33
34 #include <TGeoGlobalMagField.h>
35 #include <TLorentzVector.h>
36 #include <TMath.h>
37 #include <TVirtualMC.h>
38
39 #include "AliLog.h"
40 #include "AliMagF.h"
41 #include "AliRun.h"
42 #include "AliT0hit.h"
43 #include "AliT0v0.h"
44 #include "AliLog.h"
45
46 ClassImp(AliT0v0)
47
48 //--------------------------------------------------------------------
49 AliT0v0::AliT0v0(const char *name, const char *title):
50   AliT0(name,title),
51   fIdSens1(0)
52 {
53   //
54   // Standart constructor for T0 Detector version 0
55   //
56   //  fIdSens1=0;
57 //  setBufferSize(128000);
58 }
59 //-------------------------------------------------------------------------
60 void AliT0v0::CreateGeometry()
61 {
62   //
63   // Create the geometry of T0 Detector version 0
64   // Full geometry with support structure according T0 prototype
65   //
66   // begin Html
67   /*
68    <img src="gif/AliT0v0.gif">
69   */
70   //
71
72
73
74   Int_t *idtmed = fIdtmed->GetArray();
75   
76   Int_t is;
77   Int_t idrotm[999];
78   Float_t x,y,z;
79  Float_t pstartR[18]={0., 360., 5., 
80                        -76.5+0.00+69.7, 4.25, 10.,
81                        -76.5+6.05+69.7, 4.5, 10., 
82                        -76.5+8.05+69.7, 4.5, 10.,
83                        -76.5+8.05+69.7, 5.1, 10.,
84                        -62.9+0.00+69.7, 5.1, 10.};
85   
86   Float_t pstart[3]={4.3, 12.,6.8};
87   Float_t pinstart[3]={0.,1.6,6.5};
88   Float_t ppmt[3]={0.,1.5,3.5};
89
90   Float_t preg[3]={0.,0.875,0.005}; //dobavil bogdanov
91
92   Float_t pdivider[3]={0.,1.2,1.75};
93   Float_t pdiv2[3]={0.,1.2,1.25};
94   Float_t pdiv1[3]={0.6,1.2,0.5};
95   //  Float_t ptop[3]={0.,1.3,1.5};
96   Float_t ptop[3]={0.,1.0,1.5};
97   Float_t pbot[3]={0.6,1.2,0.1};
98   Float_t pglass[3]={1.2,1.3,2.};
99   Float_t pcer[3]={0.9,1.1,0.09};
100   Float_t psteel[3]={0.9,1.1,0.01};
101   Float_t ppins[3]={0.6,1.2,0.014};
102   Float_t phole[3]={0.6,1.2,0.015};
103   Float_t pknob[3]={0.5,0.6,0.4};
104   Float_t pknob_vac[3]={0.,0.5,0.4};
105   Float_t pknob_bot[3]={0.,0.6,0.05};
106   Float_t pribber[3] = {0.,1.2,2.413/2.};
107   Float_t presist[3] = {0.,1.2,0.087/2.};
108   Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
109   Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi  C
110   Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki  C
111    Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu  C
112   Float_t psupport6[3] = {0,1.5,0.05}; //kryshechka stakanchika  Al
113   Float_t psupport7[3] = {1.5,1.6,0.6}; //kolechko snaruzhu stakanchika Al
114   // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
115     AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
116   Float_t ppcon[70]; 
117     ppcon[0]  =   0;
118     ppcon[1]  = 360;
119     ppcon[2]  =  13;
120 //  1: 
121     ppcon[3]  =  14.1/2;
122     ppcon[4]  =   4.4;
123     ppcon[5]  =   4.5;
124 //  2
125     ppcon[6]  = ppcon[3]+1.;
126     ppcon[7]  =   4.4;
127     ppcon[8]  =   4.5;
128 //  3
129     ppcon[9]  = ppcon[6];
130     ppcon[10] =   4.4;
131     ppcon[11] =   5.1;
132
133 //  4
134
135     ppcon[12]  = ppcon[9]+0.1;
136     ppcon[13] =   4.4;
137     ppcon[14] =   5.1;
138 //  5
139
140     ppcon[15]  = ppcon[12];
141     ppcon[16] =   4.9;
142     ppcon[17] =   5.1;
143     
144 //  6
145     ppcon[18]  = ppcon[15]+7.05;
146     ppcon[19] =   4.9;
147     ppcon[20] =   5.1;
148     
149 //  7
150     ppcon[21]  = ppcon[18];
151     ppcon[22] =   4.9;
152     ppcon[23] =   5.1;
153
154 /// 8
155     ppcon[24]  = ppcon[21]+0.01;
156     ppcon[25] =   3.15;
157     ppcon[26] =   3.25;
158     
159 /// 9
160     ppcon[27]  = ppcon[24];
161     ppcon[28] =   3.15;
162     ppcon[29] =   3.25;
163     
164 //  10
165     ppcon[30]  = ppcon[27]+4.5;
166     ppcon[31] =   3.15;
167     ppcon[32] =   3.25;
168
169 //  11
170     ppcon[33] = ppcon[30];
171     ppcon[34] =   3.15;
172     ppcon[35] =   3.25;
173
174 //  12
175     ppcon[36]  = ppcon[33];
176     ppcon[37] =   3.15;
177     ppcon[38] =   7.6;
178
179 //  13
180     ppcon[39]  = ppcon[33]+0.4;
181     ppcon[40] =   3.15;
182     ppcon[41] =   7.6;
183
184 //  14
185 //    ppcon[39]  = ppcon[36];
186 //    ppcon[40] =   3.15;
187 //    ppcon[41] =   7.6;
188
189     gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
190     z=-69.7;//-14.1/2;
191     gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
192
193
194    Float_t zdetRight=69.7,zdetLeft=350;
195  //-------------------------------------------------------------------
196  //  T0 volume 
197  //-------------------------------------------------------------------
198   
199     
200     gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
201     gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
202     gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetRight-pstart[2],idrotm[901],"ONLY");
203     gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetLeft+pstart[2],0,"ONLY");
204
205 //T0 interior
206     gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
207     gMC->Gsvolu("0PMT","TUBE",idtmed[kOpAir],ppmt,3);     
208     gMC->Gsvolu("0DIV","TUBE",idtmed[kVac],pdivider,3);     
209     gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
210     gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi  C
211     gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai  C
212     gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai  C
213     //    gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
214     gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu  C
215     gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika  Al
216     gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
217        
218 // first ring: 12 units of Scintillator+PMT+divider
219   Float_t  theta  = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetRight);
220   Float_t angle  = 2 * TMath::Pi() / 12;
221   Float_t phi[3];
222     
223    for (is=0; is<12; is++)
224       {  
225
226         x = 6.5 * TMath::Sin(is * angle);
227         y = 6.5 * TMath::Cos(is * angle);
228         
229         phi[0] = -30 * is;
230         phi[1] = 90 - is * 30;
231         phi[2] = 90 - is * 30;
232         for (Int_t j = 0; j < 3; j++)
233           if (phi[j] < 0)  phi[j] += 360;
234         
235         AliMatrix (idrotm[902 + is], 90.,         phi[0],
236                    90. + theta, phi[1],
237                    theta,       phi[2]);  
238         z=-pstart[2]+pinstart[2]+0.2;
239         gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
240         gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
241         
242         x = 9 * TMath::Sin(angle/2+is * angle);
243         y = 9 * TMath::Cos(angle/2+is * angle);
244
245         gMC->Gspos ("0INS", is + 25, "0STL", x, y, z, 0, "ONLY");
246                 
247       } 
248    
249       
250    x=0;
251    y=0;
252    z=-pinstart[2]+ppmt[2]+2.*psupport6[2]+0.1;
253    gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
254    z=z+pdivider[2]+ppmt[2];
255    gMC->Gspos("0DIV",1,"0INS",x,y,z,0,"ONLY");
256    
257    // PMT
258    
259    // Entry window (glass)
260    gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
261    //   gMC->Gsvolu("0TOP","TUBE",idtmed[12],ptop,3); //lucite
262    z=-ppmt[2]+ptop[2];
263    gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
264    
265    //Fotokatod
266    
267    gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlass], preg, 3); //photocathode dobavil bogdanov(AliT0v2)
268    z = -ppmt[2] + 2 * ptop[2] + preg[2]; //photocathode dobavil bogdanov 
269    gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); //photocathode dobavil bogdanov(AliT0v2)
270    
271    // Bottom glass
272    gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
273    z=ppmt[2]-pbot[2];
274    AliDebugClass(1,Form(" Z bottom %f\n",z));
275    gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
276    // Side cylinder glass
277    gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
278    z=ppmt[2]-pglass[2];
279    gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
280    //PMT electrodes support structure
281    gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
282    gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
283    z=-ppmt[2]+2*ptop[2]+0.3;;
284    for (is=1; is<=15; is++)
285      {
286        z=z+psteel[2]+pcer[2];
287        gMC->Gspos("0CER",is,"0PMT",0,0,z,0,"ONLY");
288        z=z+psteel[2]+pcer[2];
289        gMC->Gspos("0STE",is,"0PMT",0,0,z,0,"ONLY");
290      }
291    
292    // Divider
293    // Knob at the bottom of PMT baloon
294    
295    gMC->Gsvolu("0NB","TUBE",idtmed[6],pknob,3);
296    z=-pdivider[2]+pknob[2];
297    gMC->Gspos("0NB",1,"0DIV",0,0,z,0,"ONLY");
298    gMC->Gsvolu("0KB","TUBE",idtmed[kGlass],pknob_bot,3);
299    z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
300    gMC->Gspos("0KB",1,"0DIV ",0,0,z,0,"ONLY");
301    gMC->Gsvolu("0VAC","TUBE",idtmed[kVac],pknob_vac,3);
302    z=-pdivider[2]+pknob_vac[2];
303    gMC->Gspos("0VAC",1,"0DIV",0,0,z,0,"ONLY");
304    //Steel pins + pin holes
305    gMC->Gsvolu("0PIN","TUBE",idtmed[kSteel],ppins,3);
306    z=-pdivider[2]+ppins[2];
307    gMC->Gspos("0PIN",1,"0DIV",0,0,z,0,"ONLY");
308    gMC->Gsvolu("0HOL","TUBE",idtmed[kBrass],phole,3);
309    z=-pdivider[2]+2*ppins[2]+phole[2];
310    gMC->Gspos("0HOL",1,"0DIV",0,0,z,0,"ONLY");
311    
312    //Socket
313    gMC->Gsvolu("0V1","TUBE",idtmed[kCer],pdiv1,3);
314    z=-pdivider[2]+pdiv1[2];
315    gMC->Gspos("0V1",1,"0DIV",0,0,z,0,"ONLY");
316    //Resistors
317    gMC->Gsvolu("0V2","TUBE",idtmed[kAir],pdiv2,3);
318    z=pdivider[2]-pdiv2[2];
319    gMC->Gspos("0V2",1,"0DIV",0,0,z,0,"ONLY");
320    gMC->Gsvolu("0RS","TUBE",idtmed[kCer],presist,3);
321    z=-pdiv2[2]+presist[2];
322    gMC->Gspos("0RS",1,"0V2",0,0,z,0,"ONLY");
323    gMC->Gsvolu("0RB","TUBE",idtmed[kRibber],pribber,3);
324    z=pdiv2[2]-pribber[2];
325    gMC->Gspos("0RB",1,"0V2",0,0,z,0,"ONLY");
326    
327    
328    //Support  left side
329    /*   
330    z=-pstart[2]+psupport1[2];
331    gMC->Gspos("0SU1",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
332    gMC->Gspos("0SU2",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh vnutri
333    z=-pstart[2]+psupport3[2];
334    gMC->Gspos("0SU3",2,"0STL",0,0,z,0,"ONLY"); //peredniaia kryshka
335    z=-pstart[2]+2.*psupport1[2];
336    gMC->Gspos("0SU4",2,"0STL",0,0,z,0,"MANY"); //zadnaiai kryshka
337    */
338    z=-pstart[2]+psupport1[2]+0.1;
339    gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
340    gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
341    z=-pstart[2]+psupport3[2]+0.1;
342    gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
343    z=-pstart[2]+2.*psupport1[2]+0.1;
344    gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
345    gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu 
346    z=-pinstart[2]+psupport6[2];
347    gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka 
348    
349    z=pinstart[2]-psupport7[2];
350    gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
351    
352    
353    Float_t par[3];
354    par[0]=4.4;
355    par[1]=4.5;
356    par[2]=0.5;
357    gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
358    z=ppcon[3]+par[2];
359    gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY"); 
360    z += par[2];
361    par[0]=4.4;
362    par[1]=5.1;
363    par[2]=0.05;
364    gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
365    z += par[2];
366    gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY"); 
367    z=z+par[2];
368    par[0]=4.9;
369    par[1]=5.0;
370    par[2]=6.9/2;
371     gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
372     z += par[2];
373     gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY"); 
374     z += par[2];
375     /*
376     Float_t parC[5];
377     parC[0]=0.25;
378     parC[1]=5.1;
379     parC[2]=5.2;
380     parC[3]=5.5;
381     parC[4]=5.6;
382     gMC->Gsvolu("0SC3","CONE",idtmed[kC],parC,5);
383     z += parC[0];
384     gMC->Gspos("0SC3",1,"0SUP",0,0,z,0,"ONLY"); 
385     z += parC[0];
386     par[0]=5.5;
387     par[1]=5.6;
388     par[2]=1.2/2;
389     gMC->Gsvolu("0SC4","TUBE",idtmed[kC],par,3);
390     z += par[2];
391     gMC->Gspos("0SC4",1,"0SUP",0,0,z,0,"ONLY"); 
392     par[0]=5.1;
393     par[1]=5.5;
394     par[2]=1.2/2;
395     gMC->Gsvolu("0SA0","TUBE",idtmed[kAl],par,3);
396     gMC->Gspos("0SA0",1,"0SUP",0,0,z,0,"ONLY"); 
397     //gvozdi dlia skruchivaniia Al i C parts
398     par[0]=5.75; 
399     par[1]=5.78;
400     gMC->Gsvolu("0SN1","TUBE",idtmed[kSteel],par,3);
401     gMC->Gspos("0SN1",1,"0SUP",0,0,z,0,"ONLY"); 
402     z += par[2];
403     */
404     par[0]=3.15;
405     par[1]=4.9;
406     par[2]=0.1/2;
407     gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
408     
409     z += par[2];
410     gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY"); 
411     z=z+par[2];
412     par[0]=3.15;
413     par[1]=3.16;
414     par[2]=4.5/2;
415     gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
416     z += par[2];
417     gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY"); 
418     z=z+par[2];
419     par[0]=3.16; // eta chast' prikruchena k absorberu
420     par[1]=7.5;
421     par[2]=0.2;
422     gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
423     z += par[2];
424     gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY"); 
425     par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
426     par[1]=7.5;
427     par[2]=0.01;
428     gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
429     gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY"); 
430     
431  
432 }    
433
434 //------------------------------------------------------------------------
435 void AliT0v0::CreateMaterials()
436 {
437    Int_t isxfld   = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
438    Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
439    Double_t a,z,d,radl,absl;
440    TArrayD par;
441
442 // Scintillator CH
443    Float_t ascin[2]={1.01,12.01};
444    Float_t zscin[2]={1,6};
445    Float_t wscin[2]={1,1};
446    Float_t denscin=1.03;
447 //Lucite C(CH3)CO2CH3
448    Float_t alucite[3]={1.01,12.01,15.999};
449    Float_t zlucite[3]={1,6,8};
450    Float_t wlucite[3]={8,5,2};
451    Float_t denlucite=1.16;
452  // PMT glass SiO2
453    Float_t aglass[2]={28.0855,15.9994};
454    Float_t zglass[2]={14.,8.};
455    Float_t wglass[2]={1.,2.};
456    Float_t dglass=2.65;
457 // Ceramic   97.2% Al2O3 , 2.8% SiO2
458    Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
459    Float_t aal2o3[2]  = { 26.981539,15.9994 };
460    Float_t zal2o3[2]  = { 13.,8. };
461    Float_t wal2o3[2]  = { 2.,3. };
462    Float_t denscer  = 3.6;
463
464 // Brass 80% Cu, 20% Zn
465    Float_t abrass[2] = {63.546,65.39};
466    Float_t zbrass[2] = {29,30};
467    Float_t wbrass[2] = {0.8,0.2};
468    Float_t denbrass=8.96;
469
470 //Ribber C6H12S
471    Float_t aribber[3] = {12.,1.,32.};
472    Float_t zribber[3] = {6.,1.,16.};
473    Float_t wribber[3] = {6.,12.,1.};
474    Float_t denribber=0.8;
475 // Support inside 
476    Float_t asupport[2] = {12.,1.};
477    Float_t zsupport[2] = {6.,1.};
478    Float_t wsupport[2] = {1.,1.};
479    Float_t densupport=0.1;
480 // AIR
481    Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
482    Float_t zAir[4]={6.,7.,8.,18.};
483    Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
484    Float_t dAir = 1.20479E-3;
485      
486 //*** Definition Of avaible T0 materials ***
487    AliMaterial(0, "T0 Steel$", 55.850,26.,7.87,1.76,999);
488    AliMaterial(1, "T0 Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
489    AliMixture(2, "T0 Air$", aAir, zAir, dAir,4,wAir);
490
491    AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999); 
492    AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999); 
493
494    AliMixture( 3, "Al2O3   $", aal2o3, zal2o3, denscer, -2, wal2o3);
495    AliMixture( 4, "PMT glass   $",aglass,zglass,dglass,-2,wglass);
496    TString namate;
497    gMC->GetMaterial((*fIdmate)[3], namate, a, z, d, radl, absl, par);
498    acer[0]=a;
499    zcer[0]=z;
500    gMC->GetMaterial((*fIdmate)[4], namate, a, z, d, radl, absl, par);
501    acer[1]=a;
502    zcer[1]=z;
503    
504    AliMixture( 9, "Ceramic    $", acer, zcer, denscer, 2, wcer);
505    AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
506    AliMixture( 6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
507    
508    AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
509    AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
510    AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
511  
512    
513    AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
514    AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
515    AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
516    AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
517    AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
518    AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
519    AliMedium(9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
520    AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
521    AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
522    AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
523    AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
524    AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
525
526    AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
527
528 }
529
530 //-------------------------------------------------------------------
531 void AliT0v0::Init()
532 {
533 // Initialises version 0 of the Forward Multiplicity Detector
534 //
535 //Int_t *idtmed  = gAlice->Idtmed();
536   AliT0::Init();
537   fIdSens1=gMC->VolId("0TOP");
538   AliDebug(1,Form("%s: *** T0 version 0 initialized ***\n",ClassName()));
539   
540 }
541
542 //-------------------------------------------------------------------
543
544 void AliT0v0::StepManager()
545 {
546   //
547   // Called for every step in the T0 Detector
548   // See AliT0v1
549
550 }
551 //---------------------------------------------------------------------
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