New START corrected for coding conventions
[u/mrichter/AliRoot.git] / START / AliSTARTv0.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  *                                                                        *
7  * Permission to use, copy, modify and distribute this software and its   *
8  * documentation strictly for non-commercial purposes is hereby granted   *
9  * without fee, provided that the above copyright notice appears in all   *
10  * copies and that both the copyright notice and this permission notice   *
11  * appear in the supporting documentation. The authors make no claims     *
12  * about the suitability of this software for any purpose. It is          *
13  * provided "as is" without express or implied warranty.                  *
14  **************************************************************************/
15
16 /*
17 $Log$
18 Revision 1.7  2000/01/21 15:45:23  fca
19 New Version from Alla
20
21 Revision 1.6  1999/11/12 15:04:00  fca
22 Modifications from A.Maevskaya
23
24 Revision 1.5  1999/09/29 09:24:29  fca
25 Introduction of the Copyright and cvs Log
26
27 */ 
28
29 /////////////////////////////////////////////////////////////////////
30 //                                                                 //
31 // START ( T-zero) detector  version 0                        //
32 //
33 //Begin Html       
34 /*
35 <img src="gif/AliSTARTv0Class.gif">
36 */
37 //End Html
38 //                                                                  //
39 //                                                                  //
40 //////////////////////////////////////////////////////////////////////
41
42 #include <TMath.h>
43 #include <TGeometry.h>
44 #include <TTUBE.h>
45 #include <TNode.h>
46
47 #include "AliSTARTv0.h"
48 #include "AliRun.h"
49 #include "AliMC.h"
50 #include "AliSTARThit.h"
51
52 #include <iostream.h>
53 #include <fstream.h>
54
55 //#include "TGeant3.h"
56 #include <stdlib.h>
57
58 ClassImp(AliSTARTv0)
59
60 //--------------------------------------------------------------------
61 AliSTARTv0::AliSTARTv0(const char *name, const char *title):
62  AliSTART(name,title)
63 {
64   //
65   // Standart constructor for START Detector version 0
66   //
67   fIdSens1=0;
68 //  setBufferSize(128000);
69 }
70 //-------------------------------------------------------------------------
71 void AliSTARTv0::CreateGeometry()
72 {
73   //
74   // Create the geometry of START Detector version 0
75   //
76   // begin Html
77   /*
78    <img src="gif/AliSTARTv0.gif">
79   */
80   //
81
82
83   Int_t *idtmed = fIdtmed->GetArray();
84   
85   Int_t is;
86   Int_t idrotm[999];
87   Float_t x,y,z;
88
89   Float_t pstart[3]={4.5,10.7,5.3};
90   Float_t ppmt[3]={0.,1.3,3.5};
91   Float_t pdivider[3]={0.,1.2,1.75};
92   Float_t pdiv2[3]={0.,1.2,1.25};
93   Float_t pdiv1[3]={0.6,1.2,0.5};
94   Float_t ptop[3]={0.,1.3,1.5};
95   Float_t pbot[3]={0.6,1.2,0.1};
96   Float_t pglass[3]={1.2,1.3,2.};
97   Float_t pcer[3]={0.9,1.1,0.09};
98   Float_t psteel[3]={0.9,1.1,0.01};
99   Float_t ppins[3]={0.6,1.2,0.014};
100   Float_t phole[3]={0.6,1.2,0.015};
101   Float_t pknob[3]={0.5,0.6,0.4};
102   Float_t pknob_vac[3]={0.,0.5,0.4};
103   Float_t pknob_bot[3]={0.,0.6,0.05};
104   Float_t pribber[3] = {0.,1.2,2.413/2.};
105   Float_t presist[3] = {0.,1.2,0.087/2.};
106
107   Float_t zdet=75.;
108  //-------------------------------------------------------------------
109  //  START volume 
110  //-------------------------------------------------------------------
111   
112     AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
113     gMC->Gsvolu("STRT","TUBE",idtmed[1],pstart,3);
114     gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY");
115     gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY");
116
117 //START interior
118     gMC->Gsvolu("PMT ","TUBE",idtmed[3],ppmt,3);     
119     gMC->Gsvolu("DIVI","TUBE",idtmed[3],pdivider,3);     
120
121 // first ring: 12 units of Scintillator+PMT+divider
122     Double_t dang1 = 2*TMath::Pi()/12;
123     for (is=1; is<=12; is++)
124       {  
125         x=6.5*TMath::Sin(is*dang1);
126         y=6.5*TMath::Cos(is*dang1);
127         z=-pstart[2]+ppmt[2];
128         gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
129         printf("z PMT %f\n",z);
130         z=z+ppmt[2]+pdiv2[2];
131         printf(" is %d, z Divider %f\n",is,z);
132         gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
133       }
134      /*  
135 //second ring: 20 units of Scintillator+PMT+divider
136       Double_t dang2 = 2*TMath::Pi()/26;
137       Double_t dang3 = 2*TMath::Pi()/20;
138        for (is=14; is<=33;is++)  
139      {  
140      x=9.3*TMath::Sin(dang2+(is-13)*dang3);
141      y=9.3*TMath::Cos(dang2+(is-13)*dang3);
142       z=-pstart[2]+ppmt[2];
143       gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
144       z=z+ppmt[2]+pdiv2[2];
145       gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
146       }
147      */
148 // PMT
149       
150     // Entry window (glass)
151     gMC->Gsvolu("PTOP","TUBE",idtmed[6],ptop,3);
152     z=-ppmt[2]+ptop[2];
153     gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY");
154     //     printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
155     // Bottom glass
156     gMC->Gsvolu("PBOT","TUBE",idtmed[6],pbot,3);
157     z=ppmt[2]-pbot[2];
158     printf("Z bottom %f\n",z);
159     gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY");
160     // Side cylinder glass
161     gMC->Gsvolu("POUT","TUBE",idtmed[6],pglass,3);
162     z=ppmt[2]-pglass[2];
163     //      printf("Z glass %f\n",z);
164     gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY");
165     //PMT electrodes support structure
166     gMC->Gsvolu("PCER","TUBE",idtmed[4],pcer,3);
167     gMC->Gsvolu("PSTE","TUBE",idtmed[8],psteel,3);
168     z=-ppmt[2]+2*ptop[2]+0.3;;
169     //      printf("Z Cer 1 %f\n",z);
170     for (is=1; is<=15; is++)
171       {
172         z=z+psteel[2]+pcer[2];
173         gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY");
174         z=z+psteel[2]+pcer[2];
175         gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY");
176       }
177     
178     // Divider
179     // Knob at the bottom of PMT baloon
180     
181     gMC->Gsvolu("KNOB","TUBE",idtmed[6],pknob,3);
182     z=-pdivider[2]+pknob[2];
183     //      printf("zknob %f\n",z);
184     gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY");
185     gMC->Gsvolu("KNBO","TUBE",idtmed[6],pknob_bot,3);
186     z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
187     //      printf("knobbot %f\n",z);
188     gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY");
189     gMC->Gsvolu("KNVA","TUBE",idtmed[6],pknob_vac,3);
190     z=-pdivider[2]+pknob_vac[2];
191     //      printf("knobvac %f\n",z);
192     gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY");
193     //Steel pins + pin holes
194     gMC->Gsvolu("PINS","TUBE",idtmed[8],ppins,3);
195     z=-pdivider[2]+ppins[2];
196     gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY");
197     gMC->Gsvolu("HOLE","TUBE",idtmed[11],phole,3);
198     z=-pdivider[2]+2*ppins[2]+phole[2];
199     gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY");
200     
201     //Socket
202     gMC->Gsvolu("DIV1","TUBE",idtmed[4],pdiv1,3);
203     z=-pdivider[2]+pdiv1[2];
204     gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY");
205     //Resistors
206     gMC->Gsvolu("DIV2","TUBE",idtmed[1],pdiv2,3);
207     z=pdivider[2]-pdiv2[2];
208     gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY");
209     gMC->Gsvolu("DRES","TUBE",idtmed[4],presist,3);
210     z=-pdiv2[2]+presist[2];
211     gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY");
212     gMC->Gsvolu("DRIB","TUBE",idtmed[9],pribber,3);
213     z=pdiv2[2]-pribber[2];
214     gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY");
215     //      printf("z DRIB %f\n",z);
216     
217     
218 }    
219 //------------------------------------------------------------------------
220 void AliSTARTv0::CreateMaterials()
221 {
222    Int_t isxfld   = gAlice->Field()->Integ();
223    Float_t sxmgmx = gAlice->Field()->Max();
224    Float_t a,z,d,radl,absl,buf[1];
225    Int_t nbuf;
226
227 // Scintillator CH
228    Float_t ascin[2]={1.01,12.01};
229    Float_t zscin[2]={1,6};
230    Float_t wscin[2]={1,1};
231    Float_t denscin=1.03;
232 // PMT glass SiO2
233    Float_t aglass[2]={28.0855,15.9994};
234    Float_t zglass[2]={14.,8.};
235    Float_t wglass[2]={1.,2.};
236    Float_t dglass=2.65;
237 // Ceramic   97.2% Al2O3 , 2.8% SiO2
238    Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
239    Float_t aal2o3[2]  = { 26.981539,15.9994 };
240    Float_t zal2o3[2]  = { 13.,8. };
241    Float_t wal2o3[2]  = { 2.,3. };
242    Float_t denscer  = 3.6;
243
244 // Brass 80% Cu, 20% Zn
245    Float_t abrass[2] = {63.546,65.39};
246    Float_t zbrass[2] = {29,30};
247    Float_t wbrass[2] = {0.8,0.2};
248    Float_t denbrass=8.96;
249
250 //Ribber C6H12S
251    Float_t aribber[3] = {12.,1.,32.};
252    Float_t zribber[3] = {6.,1.,16.};
253    Float_t wribber[3] = {6.,12.,1.};
254    Float_t denribber=0.8;
255    /*
256 // Definition Cherenkov parameters
257    Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 };
258    Float_t rindex_quarz[14] = { 1.528309,1.533333,
259                                 1.538243,1.544223,1.550568,1.55777,
260                                 1.565463,1.574765,1.584831,1.597027,
261                                 1.611858,1.6277,1.6472,1.6724 };
262  
263    Float_t absco_quarz[14] = { 20.126,16.27,13.49,11.728,9.224,8.38,7.44,7.17,
264                                 6.324,4.483,1.6,.323,.073,0. };
265    */
266    //   Int_t *idtmed = fIdtmed->GetArray()-999;
267     
268    //  TGeant3 *geant3 = (TGeant3*) gMC;
269     
270 //*** Definition Of avaible START materials ***
271    AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
272    AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
273    AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999); 
274
275    AliMixture( 3, "Al2O3   $", aal2o3, zal2o3, denscer, -2, wal2o3);
276    AliMixture( 4, "PMT glass   $",aglass,zglass,dglass,-2,wglass);
277    char namate[21];
278    gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
279    acer[0]=a;
280    zcer[0]=z;
281    gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
282    acer[1]=a;
283    zcer[1]=z;
284    
285    AliMixture( 9, "Ceramic    $", acer, zcer, denscer, 2, wcer);
286    AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
287    AliMixture( 6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
288    
289    AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
290    
291    
292    AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
293    AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
294    AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
295    AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
296    AliMedium(6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
297    AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
298    AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
299    AliMedium(9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
300
301 //  geant3->Gsckov(idtmed[2105], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
302
303 }
304 //---------------------------------------------------------------------
305 void AliSTARTv0::DrawModule()
306 {
307 //
308 // Draw a shaded view of the Forward multiplicity detector version 0
309 //
310   
311   //Set ALIC mother transparent
312   gMC->Gsatt("ALIC","SEEN",0);
313   //
314   //Set volumes visible
315   gMC->Gsatt("STRT","SEEN",0);
316   gMC->Gsatt("PMT ","SEEN",1);
317   gMC->Gsatt("DIVI","SEEN",1);
318   //
319   gMC->Gdopt("hide","on");
320   gMC->Gdopt("shad","on");
321   gMC->SetClipBox(".");
322   gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
323   gMC->DefaultRange();
324   gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7);
325   gMC->Gdhead(1111,"T-Zero detector");
326   gMC->Gdopt("hide","off");
327 }
328
329 //-------------------------------------------------------------------
330 void AliSTARTv0::Init()
331 {
332 // Initialises version 0 of the Forward Multiplicity Detector
333 //
334 //Int_t *idtmed  = gAlice->Idtmed();
335   AliSTART::Init();
336   fIdSens1=gMC->VolId("PTOP");
337   printf("*** START version 0 initialized ***\n");
338  
339 }
340
341 //-------------------------------------------------------------------
342
343 void AliSTARTv0::StepManager()
344 {
345   //
346   // Called for every step in the START Detector
347   //
348   Int_t id,copy,copy1;
349   static Float_t hits[7];
350   static Float_t edep;
351   static Int_t vol[2];
352   TLorentzVector pos;
353   
354   TClonesArray &lhits = *fHits;
355   
356   if(!gMC->IsTrackAlive()) return; // particle has disappeared
357   Float_t charge = gMC->TrackCharge();
358   if(TMath::Abs(charge)<=0.) return; //take only charged particles
359   //    gMC->Gpcxyz();
360   id=gMC->CurrentVolID(copy);
361   
362   
363   //  printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
364   // Check the sensetive volume
365   if(id==fIdSens1 ) {
366     if(gMC->IsTrackEntering()) {
367       gMC->CurrentVolOffID(2,copy);
368       vol[0]=copy;
369       gMC->CurrentVolOffID(1,copy1);
370       vol[1]=copy1;
371       gMC->TrackPosition(pos);
372       hits[0] = pos[0];
373       hits[1] = pos[1];
374       hits[2] = pos[2];
375       Float_t etot=gMC->Etot();
376       hits[4]=etot;
377       Int_t part= gMC->TrackPid();
378       hits[5]=part;
379       Float_t ttime=gMC->TrackTime();
380       hits[6]=ttime*1e9;
381       edep=0;
382     }
383     if(gMC->IsTrackInside())    {
384       Float_t de=gMC->Edep(); 
385       edep=edep+de;
386       //       printf ("E deposition %f\n",edep);
387       //    for (i=0; i<=6; i++){
388       //    printf(" HITS on START inside %f\n",hits[i]); } 
389     }
390     if(gMC->IsTrackExiting())   {
391       Float_t de=gMC->Edep(); 
392       edep=edep+de;
393       hits[3]=edep*1e3;
394
395       //       for (i=0; i<=6; i++){
396       //         printf(" HITS on START Exit %f\n",hits[i]); } 
397       //for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);}
398      
399       new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->CurrentTrack(),vol,hits);      
400     }
401   }
402 //---------------------------------------------------------------------
403 }
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