4534f1d25ead1a282fc8e3e07ad7e60cf09e185b
[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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8  * documentation strictly for non-commercial purposes is hereby granted   *
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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 #include "TGeoManager.h"
41
42 #include "AliLog.h"
43 #include "AliMagF.h"
44 #include "AliRun.h"
45
46 #include "AliSTARThit.h"
47 #include "AliSTARTv1.h"
48 #include "AliSTARTParameters.h"
49
50 #include "AliMC.h"
51 #include "AliCDBLocal.h"
52 #include "AliCDBStorage.h"
53 #include "AliCDBManager.h"
54 #include "AliCDBEntry.h"
55
56 ClassImp(AliSTARTv1)
57
58 //--------------------------------------------------------------------
59 AliSTARTv1::AliSTARTv1(const char *name, const char *title):
60   AliSTART(name,title),
61   fIdSens1(0)
62 {
63   //
64   // Standart constructor for START Detector version 0
65   //
66   fIshunt = 2;
67 }
68 //_____________________________________________________________________________
69
70 AliSTARTv1::~AliSTARTv1() 
71 {
72   // desctructor  
73 }
74
75 //-------------------------------------------------------------------------
76 void AliSTARTv1::CreateGeometry()
77 {
78   //
79   // Create the geometry of START Detector version 0
80   //
81   // begin Html
82   /*
83    <img src="gif/AliSTARTv0.gif">
84   */
85   //
86
87
88    Int_t *idtmed = fIdtmed->GetArray();
89    /*
90    AliSTARTParameters* param = AliSTARTParameters::Instance();
91    param->Init();
92   Float_t zdetC = param->GetZposition(0);
93   Float_t zdetA = param->GetZposition(1);
94    */
95    Float_t zdetC = 69.7;
96    Float_t zdetA = 373.;
97
98   Int_t is;
99   Int_t idrotm[999];
100   Float_t x,y,z;
101   //C T0 mother volume
102   Float_t pstartR[18]={0., 360., 5., 
103                        -6.8, 4.25, 10., //-76.5+0.00+69.7
104                        -0.75 , 4.5, 10.,  // -76.5+6.05+69.7
105                        1.25   , 4.5, 10.,  //-76.5+8.05+69.7
106                        1.25 , 5.1, 10., //-76.5+8.05+69.7 
107                        6.8 , 5.1, 10.};  //-62.9+0.00+69.7
108   
109   Float_t pstart[3]={4., 12.5,6.8};
110   Float_t pinstart[3]={0.,1.6,6.5};
111   Float_t ppmt[3]={0.,1.5,3.5};
112   Float_t ptop[3]={0.,1.,1.0};
113   Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
114   Float_t ptopout[3]={1.,1.01, 1.};  //metal air around raiator for photos reflection 
115   Float_t pbot[3]={0.6,1.2,0.1};
116   Float_t pglass[3]={1.2,1.3,2.};
117   Float_t pcer[3]={0.9,1.1,1.35};
118   Float_t psteel[3]={0.9,1.1,0.15};
119   Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
120   Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi  C
121   Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki  C
122   Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu  C
123   Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika  Al
124   Float_t psupport7[3] = {1.5,1.6,0.4}; //kolechko snaruzhu stakanchika Al
125    
126   // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
127     AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
128   Float_t ppcon[70]; 
129     ppcon[0]  =   0;
130     ppcon[1]  = 360;
131     ppcon[2]  =  13;
132 //  1: 
133     ppcon[3]  =  7.2; // 14.1/2;
134     ppcon[4]  =   4.4;
135     ppcon[5]  =   4.5;
136 //  2
137     ppcon[6]  = ppcon[3]+1.;
138     ppcon[7]  =   4.4;
139     ppcon[8]  =   4.5;
140 //  3
141     ppcon[9]  = ppcon[6];
142     ppcon[10] =   4.4;
143     ppcon[11] =   5.1;
144
145 //  4
146
147     ppcon[12]  = ppcon[9]+0.1;
148     ppcon[13] =   4.4;
149     ppcon[14] =   5.1;
150 //  5
151
152     ppcon[15]  = ppcon[12];
153     ppcon[16] =   4.9;
154     ppcon[17] =   5.1;
155     
156 //  6
157 //    ppcon[18]  = ppcon[15]+6.9;
158     ppcon[18]  = ppcon[15]+6.7;
159     ppcon[19] =   4.9;
160     ppcon[20] =   5.1;
161     
162 //  7
163     ppcon[21]  = ppcon[18];
164     ppcon[22] =   4.9;
165     ppcon[23] =   5.1;
166
167 /// 8
168     ppcon[24]  = ppcon[21]+0.01;
169     ppcon[25] =   3.15;
170     ppcon[26] =   3.25;
171     //   ppcon[25] =   2.25;
172     // ppcon[26] =   2.33;
173     
174 /// 9
175     ppcon[27]  = ppcon[24];
176     ppcon[28] =   ppcon[25];
177     ppcon[29] =  ppcon[26] ;
178     
179 //  10
180 //    ppcon[30]  = ppcon[27]+4.5;
181     ppcon[30]  = ppcon[27]+4.7;
182     ppcon[31] =   2.3;
183     ppcon[32] =  ppcon[26] ;
184
185 //  11
186     ppcon[33] = ppcon[30];
187     //    ppcon[34] =   3.15;
188     ppcon[34] =   2.3;
189     ppcon[35] =  ppcon[26] ;
190     
191 //  12
192     ppcon[36]  = ppcon[33];
193     ppcon[37] =   ppcon[34] ;
194     ppcon[38] =   7.6;
195     
196     //  13
197     ppcon[39]  = ppcon[33]+0.2;
198     ppcon[40] =   ppcon[34] ;
199     ppcon[41] =   7.6;
200     
201 //  14
202 //    ppcon[39]  = ppcon[36];
203 //    ppcon[40] =   3.15;
204 //    ppcon[41] =   7.6;
205
206
207
208     gMC->Gsvolu("0SUP", "PCON", idtmed[kAl], ppcon,42);
209     //    gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,38);
210     z = -zdetC;
211     gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
212    
213 //-------------------------------------------------------------------
214  //  START volume 
215  //-------------------------------------------------------------------
216   
217     
218     gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
219     gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
220     gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
221     gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
222
223 //START interior
224    gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
225    gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);     
226           
227     gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
228     gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi  C
229     gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai  C
230     gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai  C
231     //    gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
232     gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu  C
233     gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika  Al
234     gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
235    
236  
237
238    //non-absorber side support  !!!!!!!!
239     
240    Float_t ppconA[20];
241     ppconA[0]  =   0;
242     ppconA[1]  = 360;
243     ppconA[2]  =  4;
244 //  1: 
245     ppconA[3]  =  0; // 12.55/2;
246     ppconA[4]  =   4.1;
247     ppconA[5]  =   5.5;
248
249 //  2: 
250     ppconA[6]  =   ppconA[3] + 10.5; 
251     ppconA[7]  =   4.1;
252     ppconA[8]  =   5.5;
253    
254 //  3: 
255     ppconA[9]  =   ppconA[3] + 10.5; 
256     ppconA[10]  =   4.1;
257     ppconA[11]  =   4.9;
258    
259  //  4: 
260     ppconA[12]  =   ppconA[9] + 2.; 
261     ppconA[13]  =   4.1;
262     ppconA[14]  =   4.9;
263
264     gMC->Gsvolu("0SUA", "PCON", idtmed[kAir], ppconA,15);
265
266      z =  - pstart[2];
267     gMC->Gspos("0SUA",1,"0STL",0.,0.,z,0,"MANY");
268     //!!!!!!!!!!!!!!!!!!!!
269
270              
271 // first ring: 12 units of Scintillator+PMT+divider
272   Float_t  theta  = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetC);
273   Float_t angle  = 2 * TMath::Pi() / 12;
274   Float_t phi[3];
275     
276    for (is=0; is<12; is++)
277       {  
278
279         x = 6.5 * TMath::Sin(is * angle);
280         y = 6.5 * TMath::Cos(is * angle);
281         
282         phi[0] = -30 * is;
283         phi[1] = 90 - is * 30;
284         phi[2] = 90 - is * 30;
285         for (Int_t j = 0; j < 3; j++)
286           if (phi[j] < 0)  phi[j] += 360;
287         
288         AliMatrix (idrotm[902 + is], 90.,         phi[0],
289                    90. + theta, phi[1],
290                    theta,       phi[2]);  
291         z=-pstart[2]+pinstart[2]+0.2;
292         gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
293         gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "MANY"); //!!!!!!
294    }    
295    
296       
297    x=0;
298    y=0;
299     z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
300    gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
301    // PMT
302    
303    // Entry window (glass)
304    gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
305    z=-ppmt[2]+ptop[2];
306    gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
307    //"metal" air volume to simulate reclection  
308    gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3); 
309    gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
310
311    //Fotokatod
312    gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3); 
313    z = -ppmt[2] + 2 * ptop[2] + preg[2]; 
314    gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); 
315   // Bottom glass
316    gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
317    z=ppmt[2]-pbot[2];
318    gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
319    // Side cylinder glass
320    gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
321    z=ppmt[2]-pglass[2];
322    gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
323    //PMT electrodes support structure
324    gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
325    gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
326    z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
327    gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
328    z +=psteel[2]+pcer[2];
329    gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
330     
331    //Support  left side
332    z=-pstart[2]+psupport1[2]+0.1;
333    gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
334    gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
335    z=-pstart[2]+psupport3[2]+0.1;
336    gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
337    z=-pstart[2]+2.*psupport1[2]-0.05;//+0.1;
338    gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
339    gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu 
340    z=-pinstart[2]+psupport6[2];
341    gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka 
342    
343    z=pinstart[2]-psupport7[2];
344    gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
345    
346    
347    Float_t par[3];
348    par[0]=4.4;
349    par[1]=4.5;
350    par[2]=0.5;
351    gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
352    z=ppcon[3]+par[2];
353    gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY"); 
354    z += par[2];
355    par[0]=4.4;
356    par[1]=5.1;
357    par[2]=0.05;
358    gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
359    z += par[2];
360    gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY"); 
361    z=z+par[2];
362    par[0]=4.9;
363    par[1]=5.0;
364    par[2]=6.7/2;
365     gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
366     z += par[2];
367     gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY"); 
368     z += par[2];
369    
370     par[0]=3.15;
371     par[1]=4.9;
372     par[2]=0.1/2;
373     gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
374     
375     z += par[2];
376     gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY"); 
377     z=z+par[2];
378     par[0]=3.15;
379     par[1]=3.16;
380     par[2]=4.7/2;
381     gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
382     z += par[2];
383     gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY"); 
384     z=z+par[2];
385     par[0]=3.16; // eta chast' prikruchena k absorberu
386     par[1]=7.5;
387     par[2]=0.1;
388     gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
389     z += par[2];
390     gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY"); 
391     par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
392     par[1]=7.5;
393     par[2]=0.01;
394     gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
395     gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY"); 
396  
397    
398
399  
400 }    
401 //------------------------------------------------------------------------
402 void AliSTARTv1::AddAlignableVolumes() const
403 {
404   //
405   // Create entries for alignable volumes associating the symbolic volume
406   // name with the corresponding volume path. Needs to be syncronized with
407   // eventual changes in the geometry.
408   //
409
410   TString volPath;
411   TString symName, sn;
412
413   TString vpA  = "/ALIC_1/0STL_1/0INS_";
414   TString vpC  = "/ALIC_1/0STR_1/0INS_";
415   TString vpInside  = "/0PMT_1/0TOP_1";
416
417
418   for (Int_t imod=0; imod<24; imod++)
419     {
420       if (imod < 12) 
421         {volPath  = vpC; sn="T0/C/PMT";}
422       else  
423         {volPath  = vpA; sn="T0/A/PMT";}
424       volPath += imod+1;
425       volPath += vpInside;
426       
427       symName = sn;
428       symName += imod+1;
429       
430       AliDebug(2,"--------------------------------------------");
431       AliDebug(2,Form("Alignable object %d", imod));
432       AliDebug(2,Form("volPath=%s\n",volPath.Data()));
433       AliDebug(2,Form("symName=%s\n",symName.Data()));
434       AliDebug(2,"--------------------------------------------");
435       //  gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data());
436       if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
437         AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", 
438                       symName.Data(),volPath.Data()));
439       
440     }
441 }   
442 //------------------------------------------------------------------------
443 void AliSTARTv1::CreateMaterials()
444 {
445    Int_t isxfld   = gAlice->Field()->Integ();
446    Float_t sxmgmx = gAlice->Field()->Max();
447    //   Float_t a,z,d,radl,absl,buf[1];
448    // Int_t nbuf;
449    Int_t *idtmed = fIdtmed->GetArray();
450
451 // AIR
452                                                                                 
453    Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
454    Float_t zAir[4]={6.,7.,8.,18.};
455    Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
456    Float_t dAir = 1.20479E-3;
457                                                                                 
458 // Scintillator CH
459    Float_t ascin[2]={1.01,12.01};
460    Float_t zscin[2]={1,6};
461    Float_t wscin[2]={1,1};
462    Float_t denscin=1.03;
463 //Lucite C(CH3)CO2CH3
464    Float_t alucite[3]={1.01,12.01,15.999};
465    Float_t zlucite[3]={1,6,8};
466    Float_t wlucite[3]={8,5,2};
467    Float_t denlucite=1.16;
468  // PMT glass SiO2
469    Float_t aglass[2]={28.0855,15.9994};
470    Float_t zglass[2]={14.,8.};
471    Float_t wglass[2]={1.,2.};
472    Float_t dglass=2.65;
473 // Ceramic   97.2% Al2O3 , 2.8% SiO2
474    // Float_t wcer[2]={0.972,0.028};
475    Float_t aCeramic[2]  = { 26.981539,15.9994 };
476    Float_t zCeramic[2]  = { 13.,8. };
477    Float_t wCeramic[2]  = { 2.,3. };
478    Float_t denscer  = 3.6;
479
480 // Brass 80% Cu, 20% Zn
481    Float_t abrass[2] = {63.546,65.39};
482    Float_t zbrass[2] = {29,30};
483    Float_t wbrass[2] = {0.8,0.2};
484    Float_t denbrass=8.96;
485
486 //Ribber C6H12S
487    Float_t aribber[3] = {12.,1.,32.};
488    Float_t zribber[3] = {6.,1.,16.};
489    Float_t wribber[3] = {6.,12.,1.};
490    Float_t denribber=0.8;
491 // Support inside 
492    Float_t asupport[2] = {12.,1.};
493    Float_t zsupport[2] = {6.,1.};
494    Float_t wsupport[2] = {1.,1.};
495    Float_t densupport=0.1;
496     
497 //*** Definition Of avaible START materials ***
498    AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
499    AliMaterial(1, "Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
500    AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
501    AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999); 
502    AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999); 
503
504    AliMixture( 3, "Ceramic  $",aCeramic, zCeramic, denscer, -2, wCeramic);
505    AliMixture( 4, "PMT glass   $",aglass,zglass,dglass,-2,wglass);
506    /* 
507   char namate[21]="";
508   
509    gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
510    acer[0]=a;  
511
512    zcer[0]=z;
513    gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
514    acer[1]=a;
515    zcer[1]=z;
516    AliMixture( 11, "Ceramic    $", acer, zcer, denscer, 2, wcer);
517    */ 
518     AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
519    AliMixture( 6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
520    AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
521    AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
522    AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
523    AliMixture( 21, "PMT Optical glass   $",aglass,zglass,dglass,-2,wglass);
524    AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
525     AliMixture(22, "START Opt Air$", aAir, zAir, dAir,4,wAir);
526    AliMixture(23, "START Opt Air Next$", aAir, zAir, dAir,4,wAir);
527    
528    AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
529    AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
530    AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
531    AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
532    AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
533    AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
534    AliMedium(9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
535    AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
536    AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
537    AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
538    AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
539    AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);  
540    AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
541    AliMedium(17, "START OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
542    AliMedium(18, "START OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
543     AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
544
545
546 // Definition Cherenkov parameters
547    int i;
548    const Int_t kNbins=31;
549    
550    Float_t rindexSiO2[kNbins],  efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
551             
552    // quartz 20mm
553    Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4, 
554                              25.9, 25.3, 24.9, 24.5, 23.7, 
555                              23.2, 22.8, 22.4, 21.8, 21.3,
556                              22.8, 22.1, 21.7, 21.2, 20.5, 
557                              19.9, 19.3, 18.7, 18.0, 17.1, 
558                              16.3, 15.3, 14.3, 14.3   };
559           
560    Float_t aPckov[kNbins]  ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
561                              4.48, 4.58, 4.69, 4.81, 4.93, 
562                              5.05, 5.19, 5.33, 5.48, 5.63,
563                              5.8,  5.97, 6.16, 6.36, 6.57, 
564                              6.8,  7.04, 7.3,  7.58, 7.89, 
565                              8.22, 8.57, 8.97, 9.39 };  
566    /*     
567    Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
568                               0.21, 0.22, 0.23, 0.24, 0.26, 
569                               0.27, 0.29, 0.30, 0.29, 0.29, 
570                               0.28, 0.28, 0.27, 0.26, 0.25, 
571                               0.25, 0.23, 0.20, 0.19, 0.17,
572                               0.17, 0.17, 0.2, 0.23};
573    */     
574    //  Float_t aAbsSiO2[kNbins]; //quartz 30mm
575   for(i=0;i<kNbins;i++)
576     {
577       aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV   
578       rindexAir[i]=0;
579       rindexSiO2[i]=1.458; //refractive index for qwarts
580       rindexCathodeNext[i]=0;
581       efficAll[i]=1.;
582
583       //      aAbsSiO2[i]=28.5; //quartz 30mm
584       absorAir[i]=0.3;      
585       absorbCathodeNext[i]=0;
586
587     }
588   
589   
590    gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
591    // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
592    gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
593   gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
594    gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
595    
596    AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
597    
598    
599 }
600 //---------------------------------------------------------------------
601 void AliSTARTv1::DrawDetector()
602 {
603 //
604 // Draw a shaded view of the Forward multiplicity detector version 0
605 //
606   
607   //Set ALIC mother transparent
608   gMC->Gsatt("ALIC","SEEN",0);
609   //
610   //Set volumes visible
611   //  gMC->Gsatt("0STR","SEEN",0);
612   //  gMC->Gsatt("0INS","SEEN",0);
613   // gMC->Gsatt("0PMT","SEEN",1);
614   // gMC->Gsatt("0DIV","SEEN",1);
615   //
616   gMC->Gdopt("hide","off");
617   gMC->Gdopt("shad","on");
618   gMC->SetClipBox(".");
619   gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
620   gMC->DefaultRange();
621   gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
622   //gMC->Gdraw("alic",0,0,0,10,9.5,.8,0.8); //other side view
623   gMC->Gdhead(1111,"T-Zero detector");
624   gMC->Gdopt("hide","off");
625 }
626
627 //-------------------------------------------------------------------
628 void AliSTARTv1::Init()
629 {
630 // Initialises version 0 of the Forward Multiplicity Detector
631 //
632 //Int_t *idtmed  = gAlice->Idtmed();
633   AliSTART::Init();
634   fIdSens1=gMC->VolId("0REG");
635
636    AliDebug(1,Form("%s: *** START version 1 initialized ***\n",ClassName()));
637
638 }
639
640 //-------------------------------------------------------------------
641
642 void AliSTARTv1::StepManager()
643 {
644   //
645   // Called for every step in the START Detector
646   //
647   Int_t id,copy,copy1;
648   static Float_t hits[6];
649   static Int_t vol[2];
650   TLorentzVector pos;
651   
652   //   TClonesArray &lhits = *fHits;
653   
654   if(!gMC->IsTrackAlive()) return; // particle has disappeared
655   
656   
657     // If particles is photon then ...
658   
659  if (gMC->TrackPid() == 50000050)
660   {
661       id=gMC->CurrentVolID(copy);
662       
663       
664       // Check the sensetive volume
665       if(id==fIdSens1 ) { 
666         if(gMC->IsTrackEntering()) {
667           gMC->CurrentVolOffID(2,copy);
668           vol[1]=copy;
669           gMC->CurrentVolOffID(3,copy1);
670           vol[0]=copy1;
671           gMC->TrackPosition(pos);
672           hits[0] = pos[0];
673           hits[1] = pos[1];
674           hits[2] = pos[2];
675           if(pos[2]<0) vol[0]=2;
676           if(pos[2]>=0) vol[0]=1; 
677           
678           Float_t etot=gMC->Etot();
679           hits[3]=etot;
680           Int_t iPart= gMC->TrackPid();
681           Int_t partID=gMC->IdFromPDG(iPart);
682           hits[4]=partID;
683           Float_t ttime=gMC->TrackTime();
684           hits[5]=ttime*1e12;
685           AddHit(fIshunt,vol,hits);
686           //  cout<< gAlice->GetMCApp()->GetCurrentTrackNumber()<<" hit added "<<endl;
687         }
688         /*              
689                 printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
690                        gAlice->GetMCApp()->GetCurrentTrackNumber(),
691                gMC->IsTrackAlive(),
692                gMC->IsTrackDisappeared(),
693                gMC->IsTrackEntering(),
694                gMC->IsTrackExiting(),
695                gMC->IsTrackInside(),
696                gMC->IsTrackOut(),
697                gMC->IsTrackStop(),
698                gMC->IsNewTrack());
699         */              
700       } //sensitive
701   } //photon
702 }
703
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