Overlaps fixed
[u/mrichter/AliRoot.git] / START / AliSTARTv1.cxx
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  *                                                                        *
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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 // START ( T-zero) detector  version 1                             //
21 //
22 //Begin Html       
23 /*
24 <img src="gif/AliSTARTv1Class.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
41 #include "AliLog.h"
42 #include "AliMagF.h"
43 #include "AliRun.h"
44
45 #include "AliSTARThit.h"
46 #include "AliSTARTv1.h"
47 #include "AliSTARTParameters.h"
48
49 #include "AliMC.h"
50 #include "AliCDBLocal.h"
51 #include "AliCDBStorage.h"
52 #include "AliCDBManager.h"
53 #include "AliCDBEntry.h"
54
55 ClassImp(AliSTARTv1)
56
57 //--------------------------------------------------------------------
58 AliSTARTv1::AliSTARTv1(const char *name, const char *title):
59  AliSTART(name,title)
60 {
61   //
62   // Standart constructor for START Detector version 0
63   //
64   fIdSens1=0;
65   fIshunt = 2;
66 }
67 //_____________________________________________________________________________
68
69 AliSTARTv1::~AliSTARTv1() 
70 {
71   // desctructor  
72 }
73
74 //-------------------------------------------------------------------------
75 void AliSTARTv1::CreateGeometry()
76 {
77   //
78   // Create the geometry of START Detector version 0
79   //
80   // begin Html
81   /*
82    <img src="gif/AliSTARTv0.gif">
83   */
84   //
85
86
87    Int_t *idtmed = fIdtmed->GetArray();
88   
89   AliSTARTParameters* param = AliSTARTParameters::Instance();
90   param->Init();
91   Float_t zdetC = param->GetZposition(0);
92   Float_t zdetA = param->GetZposition(1);
93   
94   Int_t is;
95   Int_t idrotm[999];
96   Float_t x,y,z;
97   //C T0 mother volume
98   Float_t pstartR[18]={0., 360., 5., 
99                        -6.8, 4.25, 10., //-76.5+0.00+69.7
100                        -0.75 , 4.5, 10.,  // -76.5+6.05+69.7
101                        1.25   , 4.5, 10.,  //-76.5+8.05+69.7
102                        1.25 , 5.1, 10., //-76.5+8.05+69.7 
103                        6.8 , 5.1, 10.};  //-62.9+0.00+69.7
104   
105   Float_t pstart[3]={4.29, 12.5,6.8};
106   Float_t pinstart[3]={0.,1.6,6.5};
107   Float_t ppmt[3]={0.,1.5,3.5};
108   Float_t ptop[3]={0.,1.,1.0};
109   Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
110   Float_t ptopout[3]={1.,1.01, 1.};  //metal air around raiator for photos reflection 
111   Float_t pbot[3]={0.6,1.2,0.1};
112   Float_t pglass[3]={1.2,1.3,2.};
113   Float_t pcer[3]={0.9,1.1,1.35};
114   Float_t psteel[3]={0.9,1.1,0.15};
115   Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
116   Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi  C
117   Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki  C
118   Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu  C
119   Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika  Al
120   Float_t psupport7[3] = {1.5,1.6,0.4}; //kolechko snaruzhu stakanchika Al
121    
122   // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
123     AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
124   Float_t ppcon[70]; 
125     ppcon[0]  =   0;
126     ppcon[1]  = 360;
127     ppcon[2]  =  13;
128 //  1: 
129     ppcon[3]  =  7.2; // 14.1/2;
130     ppcon[4]  =   4.4;
131     ppcon[5]  =   4.5;
132 //  2
133     ppcon[6]  = ppcon[3]+1.;
134     ppcon[7]  =   4.4;
135     ppcon[8]  =   4.5;
136 //  3
137     ppcon[9]  = ppcon[6];
138     ppcon[10] =   4.4;
139     ppcon[11] =   5.1;
140
141 //  4
142
143     ppcon[12]  = ppcon[9]+0.1;
144     ppcon[13] =   4.4;
145     ppcon[14] =   5.1;
146 //  5
147
148     ppcon[15]  = ppcon[12];
149     ppcon[16] =   4.9;
150     ppcon[17] =   5.1;
151     
152 //  6
153 //    ppcon[18]  = ppcon[15]+6.9;
154     ppcon[18]  = ppcon[15]+6.7;
155     ppcon[19] =   4.9;
156     ppcon[20] =   5.1;
157     
158 //  7
159     ppcon[21]  = ppcon[18];
160     ppcon[22] =   4.9;
161     ppcon[23] =   5.1;
162
163 /// 8
164     ppcon[24]  = ppcon[21]+0.01;
165     ppcon[25] =   3.15;
166     ppcon[26] =   3.25;
167     //   ppcon[25] =   2.25;
168     // ppcon[26] =   2.33;
169     
170 /// 9
171     ppcon[27]  = ppcon[24];
172     ppcon[28] =   ppcon[25];
173     ppcon[29] =  ppcon[26] ;
174     
175 //  10
176 //    ppcon[30]  = ppcon[27]+4.5;
177     ppcon[30]  = ppcon[27]+4.7;
178     ppcon[31] =   2.3;
179     ppcon[32] =  ppcon[26] ;
180
181 //  11
182     ppcon[33] = ppcon[30];
183     //    ppcon[34] =   3.15;
184     ppcon[34] =   2.3;
185     ppcon[35] =  ppcon[26] ;
186     
187 //  12
188     ppcon[36]  = ppcon[33];
189     ppcon[37] =   ppcon[34] ;
190     ppcon[38] =   7.6;
191     
192     //  13
193     ppcon[39]  = ppcon[33]+0.2;
194     ppcon[40] =   ppcon[34] ;
195     ppcon[41] =   7.6;
196     
197 //  14
198 //    ppcon[39]  = ppcon[36];
199 //    ppcon[40] =   3.15;
200 //    ppcon[41] =   7.6;
201
202
203
204     gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
205     //    gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,38);
206     z=-zdetC;
207     gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
208
209  //-------------------------------------------------------------------
210  //  START volume 
211  //-------------------------------------------------------------------
212   
213     
214     gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
215     gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
216     gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
217     gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
218
219 //START interior
220    gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
221    gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);     
222           
223     gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
224     gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi  C
225     gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai  C
226     gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai  C
227     //    gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
228     gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu  C
229     gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika  Al
230     gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
231              
232 // first ring: 12 units of Scintillator+PMT+divider
233   Float_t  theta  = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetC);
234   Float_t angle  = 2 * TMath::Pi() / 12;
235   Float_t phi[3];
236     
237    for (is=0; is<12; is++)
238       {  
239
240         x = 6.5 * TMath::Sin(is * angle);
241         y = 6.5 * TMath::Cos(is * angle);
242         
243         phi[0] = -30 * is;
244         phi[1] = 90 - is * 30;
245         phi[2] = 90 - is * 30;
246         for (Int_t j = 0; j < 3; j++)
247           if (phi[j] < 0)  phi[j] += 360;
248         
249         AliMatrix (idrotm[902 + is], 90.,         phi[0],
250                    90. + theta, phi[1],
251                    theta,       phi[2]);  
252         z=-pstart[2]+pinstart[2]+0.2;
253         gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
254         gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
255       } 
256    
257       
258    x=0;
259    y=0;
260     z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
261    gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
262    // PMT
263    
264    // Entry window (glass)
265    gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
266    z=-ppmt[2]+ptop[2];
267    gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
268    //"metal" air volume to simulate reclection  
269    gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3); 
270    gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
271
272    //Fotokatod
273    gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3); 
274    z = -ppmt[2] + 2 * ptop[2] + preg[2]; 
275    gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); 
276   // Bottom glass
277    gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
278    z=ppmt[2]-pbot[2];
279    gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
280    // Side cylinder glass
281    gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
282    z=ppmt[2]-pglass[2];
283    gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
284    //PMT electrodes support structure
285    gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
286    gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
287    z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
288    gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
289    z +=psteel[2]+pcer[2];
290    gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
291     
292    //Support  left side
293    z=-pstart[2]+psupport1[2]+0.1;
294    gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
295    gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
296    z=-pstart[2]+psupport3[2]+0.1;
297    gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
298    z=-pstart[2]+2.*psupport1[2]-0.05;//+0.1;
299    gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
300    gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu 
301    z=-pinstart[2]+psupport6[2];
302    gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka 
303    
304    z=pinstart[2]-psupport7[2];
305    gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
306    
307    
308    Float_t par[3];
309    par[0]=4.4;
310    par[1]=4.5;
311    par[2]=0.5;
312    gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
313    z=ppcon[3]+par[2];
314    gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY"); 
315    z += par[2];
316    par[0]=4.4;
317    par[1]=5.1;
318    par[2]=0.05;
319    gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
320    z += par[2];
321    gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY"); 
322    z=z+par[2];
323    par[0]=4.9;
324    par[1]=5.0;
325    par[2]=6.7/2;
326     gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
327     z += par[2];
328     gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY"); 
329     z += par[2];
330    
331      par[0]=3.15;
332     par[1]=4.9;
333     par[2]=0.1/2;
334     gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
335     
336     z += par[2];
337     gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY"); 
338     z=z+par[2];
339     par[0]=3.15;
340     par[1]=3.16;
341     par[2]=4.7/2;
342     gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
343     z += par[2];
344     gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY"); 
345     z=z+par[2];
346     par[0]=3.16; // eta chast' prikruchena k absorberu
347     par[1]=7.5;
348     par[2]=0.1;
349     gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
350     z += par[2];
351     gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY"); 
352     par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
353     par[1]=7.5;
354     par[2]=0.01;
355     gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
356     gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY"); 
357          
358  
359 }    
360 //------------------------------------------------------------------------
361 void AliSTARTv1::CreateMaterials()
362 {
363    Int_t isxfld   = gAlice->Field()->Integ();
364    Float_t sxmgmx = gAlice->Field()->Max();
365    //   Float_t a,z,d,radl,absl,buf[1];
366    // Int_t nbuf;
367    Int_t *idtmed = fIdtmed->GetArray();
368
369 // AIR
370                                                                                 
371    Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
372    Float_t zAir[4]={6.,7.,8.,18.};
373    Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
374    Float_t dAir = 1.20479E-3;
375                                                                                 
376 // Scintillator CH
377    Float_t ascin[2]={1.01,12.01};
378    Float_t zscin[2]={1,6};
379    Float_t wscin[2]={1,1};
380    Float_t denscin=1.03;
381 //Lucite C(CH3)CO2CH3
382    Float_t alucite[3]={1.01,12.01,15.999};
383    Float_t zlucite[3]={1,6,8};
384    Float_t wlucite[3]={8,5,2};
385    Float_t denlucite=1.16;
386  // PMT glass SiO2
387    Float_t aglass[2]={28.0855,15.9994};
388    Float_t zglass[2]={14.,8.};
389    Float_t wglass[2]={1.,2.};
390    Float_t dglass=2.65;
391 // Ceramic   97.2% Al2O3 , 2.8% SiO2
392    // Float_t wcer[2]={0.972,0.028};
393    Float_t aCeramic[2]  = { 26.981539,15.9994 };
394    Float_t zCeramic[2]  = { 13.,8. };
395    Float_t wCeramic[2]  = { 2.,3. };
396    Float_t denscer  = 3.6;
397
398 // Brass 80% Cu, 20% Zn
399    Float_t abrass[2] = {63.546,65.39};
400    Float_t zbrass[2] = {29,30};
401    Float_t wbrass[2] = {0.8,0.2};
402    Float_t denbrass=8.96;
403
404 //Ribber C6H12S
405    Float_t aribber[3] = {12.,1.,32.};
406    Float_t zribber[3] = {6.,1.,16.};
407    Float_t wribber[3] = {6.,12.,1.};
408    Float_t denribber=0.8;
409 // Support inside 
410    Float_t asupport[2] = {12.,1.};
411    Float_t zsupport[2] = {6.,1.};
412    Float_t wsupport[2] = {1.,1.};
413    Float_t densupport=0.1;
414     
415 //*** Definition Of avaible START materials ***
416    AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
417    AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
418    AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
419    AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999); 
420    AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999); 
421
422    AliMixture( 3, "Ceramic  $",aCeramic, zCeramic, denscer, -2, wCeramic);
423    AliMixture( 4, "PMT glass   $",aglass,zglass,dglass,-2,wglass);
424    /* 
425   char namate[21]="";
426   
427    gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
428    acer[0]=a;  
429
430    zcer[0]=z;
431    gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
432    acer[1]=a;
433    zcer[1]=z;
434    AliMixture( 11, "Ceramic    $", acer, zcer, denscer, 2, wcer);
435    */ 
436     AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
437    AliMixture( 6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
438    AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
439    AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
440    AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
441    AliMixture( 21, "PMT Optical glass   $",aglass,zglass,dglass,-2,wglass);
442    AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
443     AliMixture(22, "START Opt Air$", aAir, zAir, dAir,4,wAir);
444    AliMixture(23, "START Opt Air Next$", aAir, zAir, dAir,4,wAir);
445    
446    AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
447    AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
448    AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
449    AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
450    AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
451    AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
452    AliMedium(9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
453    AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
454    AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
455    AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
456    AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
457    AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
458    AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
459    AliMedium(17, "START OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
460    AliMedium(18, "START OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
461     AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
462
463
464 // Definition Cherenkov parameters
465    int i;
466    const Int_t kNbins=31;
467    
468    Float_t rindexSiO2[kNbins],  efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
469             
470    // quartz 20mm
471    Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4, 
472                              25.9, 25.3, 24.9, 24.5, 23.7, 
473                              23.2, 22.8, 22.4, 21.8, 21.3,
474                              22.8, 22.1, 21.7, 21.2, 20.5, 
475                              19.9, 19.3, 18.7, 18.0, 17.1, 
476                              16.3, 15.3, 14.3, 14.3   };
477           
478    Float_t aPckov[kNbins]  ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
479                              4.48, 4.58, 4.69, 4.81, 4.93, 
480                              5.05, 5.19, 5.33, 5.48, 5.63,
481                              5.8,  5.97, 6.16, 6.36, 6.57, 
482                              6.8,  7.04, 7.3,  7.58, 7.89, 
483                              8.22, 8.57, 8.97, 9.39 };  
484    /*     
485    Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
486                               0.21, 0.22, 0.23, 0.24, 0.26, 
487                               0.27, 0.29, 0.30, 0.29, 0.29, 
488                               0.28, 0.28, 0.27, 0.26, 0.25, 
489                               0.25, 0.23, 0.20, 0.19, 0.17,
490                               0.17, 0.17, 0.2, 0.23};
491    */     
492    //  Float_t aAbsSiO2[kNbins]; //quartz 30mm
493   for(i=0;i<kNbins;i++)
494     {
495       aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV   
496       rindexAir[i]=0;
497       rindexSiO2[i]=1.458; //refractive index for qwarts
498       rindexCathodeNext[i]=0;
499       efficAll[i]=1.;
500
501       //      aAbsSiO2[i]=28.5; //quartz 30mm
502       absorAir[i]=0.3;      
503       absorbCathodeNext[i]=0;
504
505     }
506   
507   
508    gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
509    // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
510    gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
511   gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
512    gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
513    
514    AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
515    
516    
517 }
518 //---------------------------------------------------------------------
519 void AliSTARTv1::DrawDetector()
520 {
521 //
522 // Draw a shaded view of the Forward multiplicity detector version 0
523 //
524   
525   //Set ALIC mother transparent
526   gMC->Gsatt("ALIC","SEEN",0);
527   //
528   //Set volumes visible
529   //  gMC->Gsatt("0STR","SEEN",0);
530   //  gMC->Gsatt("0INS","SEEN",0);
531   // gMC->Gsatt("0PMT","SEEN",1);
532   // gMC->Gsatt("0DIV","SEEN",1);
533   //
534   gMC->Gdopt("hide","off");
535   gMC->Gdopt("shad","on");
536   gMC->SetClipBox(".");
537   gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
538   gMC->DefaultRange();
539   gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
540   //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
541   gMC->Gdhead(1111,"T-Zero detector");
542   gMC->Gdopt("hide","off");
543 }
544
545 //-------------------------------------------------------------------
546 void AliSTARTv1::Init()
547 {
548 // Initialises version 0 of the Forward Multiplicity Detector
549 //
550 //Int_t *idtmed  = gAlice->Idtmed();
551   AliSTART::Init();
552   fIdSens1=gMC->VolId("0REG");
553
554    AliDebug(1,Form("%s: *** START version 1 initialized ***\n",ClassName()));
555
556 }
557
558 //-------------------------------------------------------------------
559
560 void AliSTARTv1::StepManager()
561 {
562   //
563   // Called for every step in the START Detector
564   //
565   Int_t id,copy,copy1;
566   static Float_t hits[6];
567   static Int_t vol[2];
568   TLorentzVector pos;
569   
570   //   TClonesArray &lhits = *fHits;
571   
572   if(!gMC->IsTrackAlive()) return; // particle has disappeared
573   
574   
575     // If particles is photon then ...
576   
577  if (gMC->TrackPid() == 50000050)
578   {
579       id=gMC->CurrentVolID(copy);
580       
581       
582       // Check the sensetive volume
583       if(id==fIdSens1 ) { 
584         if(gMC->IsTrackEntering()) {
585           gMC->CurrentVolOffID(2,copy);
586           vol[1]=copy;
587           gMC->CurrentVolOffID(3,copy1);
588           vol[0]=copy1;
589           gMC->TrackPosition(pos);
590           hits[0] = pos[0];
591           hits[1] = pos[1];
592           hits[2] = pos[2];
593           if(pos[2]<0) vol[0]=2;
594           if(pos[2]>=0) vol[0]=1; 
595           
596           Float_t etot=gMC->Etot();
597           hits[3]=etot;
598           Int_t iPart= gMC->TrackPid();
599           Int_t partID=gMC->IdFromPDG(iPart);
600           hits[4]=partID;
601           Float_t ttime=gMC->TrackTime();
602           hits[5]=ttime*1e12;
603           AddHit(fIshunt,vol,hits);
604           //  cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
605         }
606         /*              
607                 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
608                        gAlice->GetMCApp()->GetCurrentTrackNumber(),
609                gMC->IsTrackAlive(),
610                gMC->IsTrackDisappeared(),
611                gMC->IsTrackEntering(),
612                gMC->IsTrackExiting(),
613                gMC->IsTrackInside(),
614                gMC->IsTrackOut(),
615                gMC->IsTrackStop(),
616                gMC->IsNewTrack());
617         */              
618       } //sensitive
619   } //photon
620 }
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