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minor bugs fixed.
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53fd478b 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// **************************************************************************
4c039060 15
53fd478b 16#include "AliRICH.h"
17#include "AliRICHParam.h"
18#include "AliRICHChamber.h"
2e5f0f7b 19#include <TArrayF.h>
543d5224 20#include <TGeometry.h>
116cbefd 21#include <TBRIK.h>
543d5224 22#include <TTUBE.h>
237c933d 23#include <TFile.h>
116cbefd 24#include <TNode.h>
25#include <TObjArray.h>
c60862bf 26#include <AliMagF.h>
c60862bf 27#include <AliRun.h>
28#include <AliRunDigitizer.h>
53fd478b 29#include <AliMC.h>
5d12ce38 30#include <TVirtualMC.h>
ddae0931 31
853634d3 32ClassImp(AliRICHhit)
c60862bf 33//__________________________________________________________________________________________________
34void AliRICHhit::Print(Option_t*)const
35{
af3d25a6 36 TVector3 glob(fX,fY,fZ);
37 AliRICH *pRich = (AliRICH*)gAlice->GetDetector("RICH");
38 TVector3 loc = pRich->C(fChamber)->Glob2Loc(glob);
39 ::Info("hit","chamber=%2i, PID=%9i, TID=%6i, eloss=%9.3f eV, XYz(%7.2f,%7.2f,%7.2f)",fChamber,fPid,fTrack,fEloss*1e9,loc.X(),loc.Y(),loc.Z());
c1863e3c 40}
c60862bf 41//__________________________________________________________________________________________________
853634d3 42ClassImp(AliRICHdigit)
c60862bf 43//__________________________________________________________________________________________________
44void AliRICHdigit::Print(Option_t*)const
45{
ed3ceb24 46 ::Info("digit","ID=%6i, PID=%9i, c=%2i, x=%3i, y=%3i, q=%8.2f, TID1=%5i, TID2=%5i, TID3=%5i",
47 Id(), fCombiPid,fChamber,fPadX,fPadY,fQdc,fTracks[0],fTracks[1],fTracks[2]);
c1863e3c 48}
49//__________________________________________________________________________________________________
50ClassImp(AliRICHcluster)
51//__________________________________________________________________________________________________
52void AliRICHcluster::Print(Option_t*)const
53{
ed3ceb24 54 ::Info("cluster","CombiPid=%10i, c=%2i, size=%4i, dim=%5i, x=%7.3f, y=%7.3f, Q=%6i, st=%i",
55 fCombiPid,fChamber,fSize,fDimXY,fX,fY,fQdc,fStatus);
c1863e3c 56}
c60862bf 57//__________________________________________________________________________________________________
af3d25a6 58ClassImp(AliRICHreco)
59//__________________________________________________________________________________________________
60void AliRICHreco::Print(Option_t*)const
61{
62 ::Info("reco","ThetaCherenkov=%9.6f, Nphotons=%4i, TID=%9i",fThetaCherenkov,fNphotons,fTid);
63}
64//__________________________________________________________________________________________________
c60862bf 65ClassImp(AliRICH)
66//__________________________________________________________________________________________________
15d8311d 67// RICH manager class
c60862bf 68//BEGIN_HTML
15d8311d 69/*
70 <img src="gif/alirich.gif">
71*/
c60862bf 72//END_HTML
73//__________________________________________________________________________________________________
fe4da5cc 74AliRICH::AliRICH()
c60862bf 75 :AliDetector()
53fd478b 76{
77//Default ctor should not contain any new operators
c60862bf 78 fpParam =0;
543d5224 79 fChambers =0;
80//AliDetector ctor deals with Hits and Digits
c60862bf 81 fSdigits =0; fNsdigits =0;
82 fDigitsNew =0; for(int i=0;i<kNCH;i++) fNdigitsNew[i] =0;
83 fClusters =0; for(int i=0;i<kNCH;i++) fNclusters[i]=0;
84
85 fCerenkovs =0; fNcerenkovs =0;
86 fSpecials =0; fNspecials =0;
543d5224 87 fCkovNumber=fFreonProd=0;
15d8311d 88}//AliRICH::AliRICH()
c021cb15 89//__________________________________________________________________________________________________
fe4da5cc 90AliRICH::AliRICH(const char *name, const char *title)
dfb4e77d 91 :AliDetector(name,title)
53fd478b 92{
93//Named ctor
dfb4e77d 94 if(GetDebug())Info("named ctor","Start.");
c60862bf 95 fpParam = new AliRICHParam;
96 fChambers = 0; CreateChambers();
543d5224 97//AliDetector ctor deals with Hits and Digits (reset them to 0, does not create them)
5d12ce38 98 fHits= 0; CreateHits(); gAlice->GetMCApp()->AddHitList(fHits);
c60862bf 99 fSdigits= 0;
100 fDigitsNew= 0;
101 fClusters= 0;
102
5d12ce38 103 fCerenkovs= 0; CreateCerenkovsOld(); gAlice->GetMCApp()->AddHitList(fCerenkovs);
c60862bf 104 fSpecials= 0; CreateSpecialsOld();
c60862bf 105
106 fCkovNumber=fFreonProd=0;
dfb4e77d 107 if(GetDebug())Info("named ctor","Stop.");
108}//AliRICH::AliRICH(const char *name, const char *title)
c021cb15 109//__________________________________________________________________________________________________
fe4da5cc 110AliRICH::~AliRICH()
53fd478b 111{
112//dtor
dfb4e77d 113 if(GetDebug()) Info("dtor","Start.");
237c933d 114
c60862bf 115 if(fpParam) delete fpParam;
116 if(fChambers) delete fChambers;
117
118 if(fHits) delete fHits;
119 if(fSdigits) delete fSdigits;
120 if(fDigits) delete fDigits;
121 if(fDigitsNew) {fDigitsNew->Delete(); delete fDigitsNew;}
122 if(fClusters) {fClusters->Delete(); delete fClusters;}
123
124 if(fCerenkovs) delete fCerenkovs;
125 if(fSpecials) delete fSpecials;
dfb4e77d 126 if(GetDebug()) Info("dtor","Stop.");
127}//AliRICH::~AliRICH()
c021cb15 128//__________________________________________________________________________________________________
3ea9cb08 129void AliRICH::Hits2SDigits()
53fd478b 130{
131//Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
3ea9cb08 132 if(GetDebug()) Info("Hit2SDigits","Start.");
853634d3 133 if(GetDebug()) Info("Hit2SDigits","Stop.");
c021cb15 134}//void AliRICH::Hits2SDigits()
135//__________________________________________________________________________________________________
dfb4e77d 136void AliRICH::SDigits2Digits()
53fd478b 137{
138//Generate digits from sdigits.
dfb4e77d 139 if(GetDebug()) Info("SDigits2Digits","Start.");
dfb4e77d 140 if(GetDebug()) Info("SDigits2Digits","Stop.");
53fd478b 141}//SDigits2Digits()
c021cb15 142//__________________________________________________________________________________________________
dfb4e77d 143void AliRICH::BuildGeometry()
53fd478b 144{
145//Builds a TNode geometry for event display
dfb4e77d 146 if(GetDebug())Info("BuildGeometry","Start.");
237c933d 147
3ea9cb08 148 TNode *node, *subnode, *top;
149 top=gAlice->GetGeometry()->GetNode("alice");
c24372d0 150
3ea9cb08 151 new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15);
53d98323 152
c60862bf 153 Float_t wid=Param()->SectorSizeX();
154 Float_t len=Param()->SectorSizeY();
3ea9cb08 155 new TBRIK("PHOTO","PHOTO","void",wid/2,0.1,len/2);
156
c021cb15 157 for(int i=1;i<=kNCH;i++){
237c933d 158 top->cd();
c021cb15 159 node = new TNode(Form("RICH%i",i),Form("RICH%i",i),"S_RICH",C(i)->X(),C(i)->Y(),C(i)->Z(),C(i)->RotMatrixName());
3ea9cb08 160 node->SetLineColor(kRed);
91975aa2 161 node->cd();
c60862bf 162 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,"");
91975aa2 163 subnode->SetLineColor(kGreen);
164 fNodes->Add(subnode);
c60862bf 165 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,len/2+Param()->DeadZone()/2,"");
91975aa2 166 subnode->SetLineColor(kGreen);
167 fNodes->Add(subnode);
c60862bf 168 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,"");
91975aa2 169 subnode->SetLineColor(kGreen);
170 fNodes->Add(subnode);
c60862bf 171 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,-len/2-Param()->DeadZone()/2,"");
91975aa2 172 subnode->SetLineColor(kGreen);
173 fNodes->Add(subnode);
c60862bf 174 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,-len/2 -Param()->DeadZone()/2,"");
91975aa2 175 subnode->SetLineColor(kGreen);
176 fNodes->Add(subnode);
c60862bf 177 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,-len/2 - Param()->DeadZone()/2,"");
91975aa2 178 subnode->SetLineColor(kGreen);
179 fNodes->Add(subnode);
237c933d 180 fNodes->Add(node);
3ea9cb08 181 }
dfb4e77d 182 if(GetDebug())Info("BuildGeometry","Stop.");
183}//void AliRICH::BuildGeometry()
c60862bf 184
dfb4e77d 185//______________________________________________________________________________
452a64c6 186void AliRICH::CreateMaterials()
187{
188 //
189 // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
af3d25a6 190
191#include "Opticals.h"
192
c60862bf 193 Float_t a=0,z=0,den=0,radl=0,absl=0;
194 Float_t tmaxfd=-10.0, deemax=-0.2, stemax=-0.1,epsil=0.001, stmin=-0.001;
195 Int_t isxfld = gAlice->Field()->Integ();
196 Float_t sxmgmx = gAlice->Field()->Max();
452a64c6 197
c60862bf 198 AliMaterial( 1, "Air $",a=14.61,z=7.3, den=0.001205,radl=30420.0,absl=67500);//(Air)
199 AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
452a64c6 200
c60862bf 201 AliMaterial( 6, "HON", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //(C)-equivalent radl
202 AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
203
204 AliMaterial(16, "CSI", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //CsI-radl equivalent
205 AliMedium(kCSI, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
206
207 AliMaterial(11, "GRI", a=63.54,z=29.0,den=8.96, radl=1.43, absl=0); //anode grid (Cu)
af3d25a6 208 AliMedium(7, "GRID$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 209
210 AliMaterial(50, "ALUM", a=26.98,z=13.0,den=2.7, radl=8.9, absl=0); //aluminium sheet (Al)
211 AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
212
213 AliMaterial(31, "COPPER$", a=63.54,z=29.0,den=8.96, radl=1.4, absl=0); //(Cu)
214 AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
215
216 Float_t aQuartz[2]={28.09,16.0}; Float_t zQuartz[2]={14.00, 8.0}; Float_t wmatQuartz[2]={1,2};
217 AliMixture (20, "QUA",aQuartz,zQuartz,den=2.64,-2, wmatQuartz);//Quarz (SiO2) - trasnparent
af3d25a6 218 AliMedium(3, "QUARTZ$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 219
220 AliMixture (21, "QUAO",aQuartz, zQuartz, den=2.64, -2, wmatQuartz);//Quarz (SiO2) - opaque
af3d25a6 221 AliMedium(8, "QUARTZO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 222
223 Float_t aFreon[2]={12,19}; Float_t zFreon[2]={6,9}; Float_t wmatFreon[2]={6,14};
224 AliMixture (30, "FRE",aFreon,zFreon,den=1.7,-2,wmatFreon);//Freon (C6F14)
225 AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
226
227 Float_t aMethane[2]={12.01,1}; Float_t zMethane[2]={6,1}; Float_t wmatMethane[2]={1,4};
228 AliMixture (40, "MET", aMethane, zMethane, den=7.17e-4,-2, wmatMethane);//methane (CH4)
af3d25a6 229 AliMedium(5, "METHANE$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 230
231 AliMixture (41, "METG", aMethane, zMethane, den=7.17e-4, -2, wmatMethane);
232 AliMedium(kGAP, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, 0.1, -deemax, epsil, -stmin);
233
234 Float_t aGlass[5]={12.01, 28.09, 16., 10.8, 23.};
235 Float_t zGlass[5]={ 6., 14., 8., 5., 11.};
236 Float_t wGlass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
237 AliMixture (32, "GLASS",aGlass, zGlass, den=1.74, 5, wGlass);//Glass 50%C+10.5%Si+35.5%O+3% + 1%
238 AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
239
240 Int_t *idtmed = fIdtmed->GetArray()-999;
af3d25a6 241 gMC->SetCerenkov(idtmed[1000], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
242 gMC->SetCerenkov(idtmed[1001], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
243 gMC->SetCerenkov(idtmed[1002], kNbins, aPckov, aAbsSiO2, aQeAll, aIdxSiO2);
244 gMC->SetCerenkov(idtmed[1003], kNbins, aPckov, aAbsC6F14, aQeAll, aIdxC6F14);
245 gMC->SetCerenkov(idtmed[1004], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
246 gMC->SetCerenkov(idtmed[1005], kNbins, aPckov, aAbsCsI, aQeCsI, aIdxCH4);
247 gMC->SetCerenkov(idtmed[1006], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
248 gMC->SetCerenkov(idtmed[1007], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
249 gMC->SetCerenkov(idtmed[1008], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
250 gMC->SetCerenkov(idtmed[1009], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
251 gMC->SetCerenkov(idtmed[1010], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
252
c60862bf 253}//void AliRICH::CreateMaterials()
c021cb15 254//__________________________________________________________________________________________________
53fd478b 255Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const
452a64c6 256{
257
258 //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
259
260 Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2,
261 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7,
262 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
452a64c6 263 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
264 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
265 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
266 1.72,1.53};
452a64c6 267 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
268 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
269 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
270 1.714,1.498};
271 Float_t xe=ene;
272 Int_t j=Int_t(xe*10)-49;
273 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
274 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
275
276 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
277 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
278
279 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
280 Float_t tanin=sinin/pdoti;
281
282 Float_t c1=cn*cn-ck*ck-sinin*sinin;
283 Float_t c2=4*cn*cn*ck*ck;
284 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
285 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
286
287 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
288 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
289
290
291 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
292 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
293
294 Float_t sigraf=18.;
295 Float_t lamb=1240/ene;
296 Float_t fresn;
297
298 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
299
300 if(pola)
301 {
302 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
303 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
304 }
305 else
306 fresn=0.5*(rp+rs);
307
308 fresn = fresn*rO;
309 return(fresn);
53fd478b 310}//Fresnel()
c021cb15 311//__________________________________________________________________________________________________
53fd478b 312Float_t AliRICH::AbsoCH4(Float_t x)const
313{
314//Evaluate the absorbtion lenght of CH4
cb8189e7 315 Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
cb8189e7 316 Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
3d130a45 317 const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3
318 const Float_t kPressure=750.,kTemperature=283.;
53fd478b 319 const Float_t kPn=kPressure/760.;
320 const Float_t kTn=kTemperature/273.16;
321 const Float_t kC0=-1.655279e-1;
322 const Float_t kC1=6.307392e-2;
323 const Float_t kC2=-8.011441e-3;
324 const Float_t kC3=3.392126e-4;
3d130a45 325
326 Float_t crossSection=0;
327 if (x<7.75)
328 crossSection=.06e-22;
329 else if(x>=7.75 && x<=8.1){ //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978)
53fd478b 330 crossSection=(kC0+kC1*x+kC2*x*x+kC3*x*x*x)*1.e-18;
3d130a45 331 }else if (x> 8.1){
332 Int_t j=0;
333 while (x<=em[j] || x>=em[j+1]){
334 j++;
335 Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
336 crossSection=(sch4[j]+a*(x-em[j]))*1e-22;
452a64c6 337 }
3d130a45 338 }//if
452a64c6 339
53fd478b 340 Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular density 1/cm-3
3d130a45 341 return 1./(density*crossSection);
cb8189e7 342}//AbsoCH4()
c021cb15 343//__________________________________________________________________________________________________
dfb4e77d 344void AliRICH::MakeBranch(Option_t* option)
53fd478b 345{
346//Create Tree branches for the RICH.
dfb4e77d 347 if(GetDebug())Info("MakeBranch","Start with option= %s.",option);
348
349 const Int_t kBufferSize = 4000;
dfb4e77d 350
dfb4e77d 351 const char *cH = strstr(option,"H");
352 const char *cD = strstr(option,"D");
353 const char *cR = strstr(option,"R");
354 const char *cS = strstr(option,"S");
355
c60862bf 356 if(cH&&TreeH()){//H
357 CreateHits(); //branch will be created in AliDetector::MakeBranch
358 CreateCerenkovsOld(); MakeBranchInTree(TreeH(),"RICHCerenkov", &fCerenkovs, kBufferSize,0);
359 CreateSpecialsOld(); MakeBranchInTree(TreeH(),"RICHSpecials", &fSpecials,kBufferSize,0);
360 }//H
dfb4e77d 361 AliDetector::MakeBranch(option);//this is after cH because we need to guarantee that fHits array is created
362
c60862bf 363 if(cS&&fLoader->TreeS()){//S
c1863e3c 364 CreateSDigits(); MakeBranchInTree(fLoader->TreeS(),"RICH",&fSdigits,kBufferSize,0) ;
c60862bf 365 }//S
dfb4e77d 366
c60862bf 367 if(cD&&fLoader->TreeD()){//D
543d5224 368 CreateDigits();
cb8189e7 369 for(Int_t i=0;i<kNCH;i++){
543d5224 370 MakeBranchInTree(fLoader->TreeD(),Form("%s%d",GetName(),i+1),&((*fDigitsNew)[i]),kBufferSize,0);
371 }
c60862bf 372 }//D
373
374 if(cR&&fLoader->TreeR()){//R
cb8189e7 375 CreateClusters();
aed240d4 376 for(Int_t i=0;i<kNCH;i++)
377 MakeBranchInTree(fLoader->TreeR(),Form("%sClusters%d",GetName(),i+1), &((*fClusters)[i]), kBufferSize, 0);
cb8189e7 378 }//R
dfb4e77d 379 if(GetDebug())Info("MakeBranch","Stop.");
c021cb15 380}//void AliRICH::MakeBranch(Option_t* option)
c60862bf 381//__________________________________________________________________________________________________
dfb4e77d 382void AliRICH::SetTreeAddress()
53fd478b 383{
384//Set branch address for the Hits and Digits Tree.
dfb4e77d 385 if(GetDebug())Info("SetTreeAddress","Start.");
c60862bf 386
dfb4e77d 387 TBranch *branch;
dfb4e77d 388
c60862bf 389 if(fLoader->TreeH()){//H
853634d3 390 if(GetDebug())Info("SetTreeAddress","tree H is requested.");
c60862bf 391 CreateHits();//branch map will be in AliDetector::SetTreeAddress
392 branch=fLoader->TreeH()->GetBranch("RICHCerenkov"); if(branch){CreateCerenkovsOld(); branch->SetAddress(&fCerenkovs);}
393 branch=fLoader->TreeH()->GetBranch("RICHSpecials"); if(branch){CreateSpecialsOld(); branch->SetAddress(&fSpecials);}
394 }//H
c021cb15 395 AliDetector::SetTreeAddress();//this is after TreeH because we need to guarantee that fHits array is created
396
c60862bf 397 if(fLoader->TreeS()){//S
853634d3 398 if(GetDebug())Info("SetTreeAddress","tree S is requested.");
c1863e3c 399 branch=fLoader->TreeS()->GetBranch(GetName()); if(branch){CreateSDigits(); branch->SetAddress(&fSdigits);}
c60862bf 400 }//S
dfb4e77d 401
c60862bf 402 if(fLoader->TreeD()){//D
853634d3 403 if(GetDebug())Info("SetTreeAddress","tree D is requested.");
c60862bf 404 for(int i=0;i<kNCH;i++){
405 branch=fLoader->TreeD()->GetBranch(Form("%s%d",GetName(),i+1));
406 if(branch){CreateDigits(); branch->SetAddress(&((*fDigitsNew)[i]));}
aed240d4 407 }
c60862bf 408 }//D
dfb4e77d 409
c60862bf 410 if(fLoader->TreeR()){//R
853634d3 411 if(GetDebug())Info("SetTreeAddress","tree R is requested.");
c60862bf 412 for(int i=0;i<kNCH;i++){
413 branch=fLoader->TreeR()->GetBranch(Form("%sClusters%d" ,GetName(),i+1));
cb8189e7 414 if(branch){CreateClusters(); branch->SetAddress(&((*fClusters)[i]));}
dfb4e77d 415 }
c60862bf 416 }//R
dfb4e77d 417 if(GetDebug())Info("SetTreeAddress","Stop.");
418}//void AliRICH::SetTreeAddress()
c021cb15 419//__________________________________________________________________________________________________
dfb4e77d 420void AliRICH::Print(Option_t *option)const
421{
53fd478b 422//Debug printout
dfb4e77d 423 TObject::Print(option);
c60862bf 424 Param()->Dump();
c021cb15 425 fChambers->Print(option);
dfb4e77d 426}//void AliRICH::Print(Option_t *option)const
c021cb15 427//__________________________________________________________________________________________________
3ea9cb08 428void AliRICH::CreateGeometry()
53fd478b 429{
430//Creates detailed geometry simulation (currently GEANT volumes tree)
3ea9cb08 431 if(GetDebug())Info("CreateGeometry","Start.");
3ea9cb08 432//Opaque quartz thickness
53fd478b 433 Float_t oquaThickness = .5;
3ea9cb08 434//CsI dimensions
c60862bf 435 Float_t pcX=Param()->PcSizeX();
436 Float_t pcY=Param()->PcSizeY();
3ea9cb08 437
438 Int_t *idtmed = fIdtmed->GetArray()-999;
439
440 Int_t i;
441 Float_t zs;
442 Int_t idrotm[1099];
443 Float_t par[3];
444
445//External aluminium box
ed3ceb24 446 par[0]=68.8;par[1]=13;par[2]=70.86; gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
3ea9cb08 447//Air
c60862bf 448 par[0]=66.3; par[1] = 13; par[2] = 68.35; gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
3ea9cb08 449//Air 2 (cutting the lower part of the box)
c60862bf 450 par[0]=1.25; par[1] = 3; par[2] = 70.86; gMC->Gsvolu("AIR2", "BOX ", idtmed[1000], par, 3);
3ea9cb08 451//Air 3 (cutting the lower part of the box)
c60862bf 452 par[0]=66.3; par[1] = 3; par[2] = 1.2505; gMC->Gsvolu("AIR3", "BOX ", idtmed[1000], par, 3);
3ea9cb08 453//Honeycomb
c60862bf 454 par[0]=66.3;par[1]=0.188; par[2] = 68.35; gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
3ea9cb08 455//Aluminium sheet
c60862bf 456 par[0]=66.3;par[1]=0.025;par[2]=68.35; gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
3ea9cb08 457 //par[0] = 66.5; par[1] = .025; par[2] = 63.1;
3ea9cb08 458//Quartz
c60862bf 459 par[0]=Param()->QuartzWidth()/2;par[1]=Param()->QuartzThickness()/2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 460 gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
461//Spacers (cylinders)
c60862bf 462 par[0]=0.;par[1]=.5;par[2]=Param()->FreonThickness()/2; gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
3ea9cb08 463//Feet (freon slabs supports)
c60862bf 464 par[0] = .7; par[1] = .3; par[2] = 1.9; gMC->Gsvolu("FOOT", "BOX", idtmed[1009], par, 3);
3ea9cb08 465//Opaque quartz
c60862bf 466 par[0]=Param()->QuartzWidth()/2;par[1]= .2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 467 gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
468//Frame of opaque quartz
c60862bf 469 par[0]=Param()->OuterFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->OuterFreonLength()/2;
3ea9cb08 470 gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
c60862bf 471 par[0]=Param()->InnerFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->InnerFreonLength()/2;
3ea9cb08 472 gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
473//Freon
53fd478b 474 par[0]=Param()->OuterFreonWidth()/2 - oquaThickness;
c60862bf 475 par[1]=Param()->FreonThickness()/2;
53fd478b 476 par[2]=Param()->OuterFreonLength()/2 - 2*oquaThickness;
3ea9cb08 477 gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
478
53fd478b 479 par[0]=Param()->InnerFreonWidth()/2 - oquaThickness;
c60862bf 480 par[1]=Param()->FreonThickness()/2;
53fd478b 481 par[2]=Param()->InnerFreonLength()/2 - 2*oquaThickness;
3ea9cb08 482 gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
483//Methane
c60862bf 484 par[0]=pcX/2;par[1]=Param()->GapThickness()/2;par[2]=pcY/2; gMC->Gsvolu("META","BOX ",idtmed[1004], par, 3);
3ea9cb08 485//Methane gap
c60862bf 486 par[0]=pcX/2;par[1]=Param()->ProximityGapThickness()/2;par[2]=pcY/2;gMC->Gsvolu("GAP ","BOX ",(*fIdtmed)[kGAP],par,3);
487//CsI PC
488 par[0]=pcX/2;par[1]=.25;par[2]=pcY/2; gMC->Gsvolu("CSI ", "BOX ", (*fIdtmed)[kCSI], par, 3);
3ea9cb08 489//Anode grid
c60862bf 490 par[0] = 0.;par[1] = .001;par[2] = 20.; gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
3ea9cb08 491
492//Wire supports
493//Bar of metal
c60862bf 494 par[0]=pcX/2;par[1]=1.05;par[2]=1.05; gMC->Gsvolu("WSMe", "BOX ", idtmed[1009], par, 3);
3ea9cb08 495//Ceramic pick up (base)
c60862bf 496 par[0]=pcX/2;par[1]= .25;par[2]=1.05; gMC->Gsvolu("WSG1", "BOX ", idtmed[1010], par, 3);
3ea9cb08 497//Ceramic pick up (head)
c60862bf 498 par[0] = pcX/2;par[1] = .1;par[2] = .1; gMC->Gsvolu("WSG2", "BOX ", idtmed[1010], par, 3);
3ea9cb08 499
500//Aluminium supports for methane and CsI
501//Short bar
c60862bf 502 par[0]=pcX/2;par[1]=Param()->GapThickness()/2 + .25; par[2] = (68.35 - pcY/2)/2;
3ea9cb08 503 gMC->Gsvolu("SMSH", "BOX", idtmed[1009], par, 3);
504//Long bar
c60862bf 505 par[0]=(66.3 - pcX/2)/2;par[1]=Param()->GapThickness()/2+.25;par[2]=pcY/2+68.35-pcY/2;
3ea9cb08 506 gMC->Gsvolu("SMLG", "BOX", idtmed[1009], par, 3);
507
508//Aluminium supports for freon
509//Short bar
c60862bf 510 par[0] = Param()->QuartzWidth()/2; par[1] = .3; par[2] = (68.35 - Param()->QuartzLength()/2)/2;
3ea9cb08 511 gMC->Gsvolu("SFSH", "BOX", idtmed[1009], par, 3);
512//Long bar
c60862bf 513 par[0] = (66.3 - Param()->QuartzWidth()/2)/2; par[1] = .3;
514 par[2] = Param()->QuartzLength()/2 + 68.35 - Param()->QuartzLength()/2;
3ea9cb08 515 gMC->Gsvolu("SFLG", "BOX", idtmed[1009], par, 3);
516//PCB backplane
c60862bf 517 par[0] = pcX/2;par[1] = .25; par[2] = pcY/4 -.5025; gMC->Gsvolu("PCB ", "BOX", idtmed[1011], par, 3);
3ea9cb08 518
519//Backplane supports
520//Aluminium slab
c60862bf 521 par[0] = 33.15;par[1] = 2;par[2] = 21.65; gMC->Gsvolu("BACK", "BOX", idtmed[1009], par, 3);
3ea9cb08 522//Big hole
c60862bf 523 par[0] = 9.05; par[1] = 2; par[2] = 4.4625; gMC->Gsvolu("BKHL", "BOX", idtmed[1000], par, 3);
3ea9cb08 524//Small hole
c60862bf 525 par[0] = 5.7;par[1] = 2;par[2] = 4.4625; gMC->Gsvolu("BKHS", "BOX", idtmed[1000], par, 3);
3ea9cb08 526//Place holes inside backplane support
527 gMC->Gspos("BKHS", 1, "BACK", .8 + 5.7,0., .6 + 4.4625, 0, "ONLY");
528 gMC->Gspos("BKHS", 2, "BACK", -.8 - 5.7,0., .6 + 4.4625, 0, "ONLY");
529 gMC->Gspos("BKHS", 3, "BACK", .8 + 5.7,0., -.6 - 4.4625, 0, "ONLY");
530 gMC->Gspos("BKHS", 4, "BACK", -.8 - 5.7,0., -.6 - 4.4625, 0, "ONLY");
531 gMC->Gspos("BKHS", 5, "BACK", .8 + 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
532 gMC->Gspos("BKHS", 6, "BACK", -.8 - 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
533 gMC->Gspos("BKHS", 7, "BACK", .8 + 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
534 gMC->Gspos("BKHS", 8, "BACK", -.8 - 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
535 gMC->Gspos("BKHL", 1, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., .6 + 4.4625, 0, "ONLY");
536 gMC->Gspos("BKHL", 2, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 4.4625, 0, "ONLY");
537 gMC->Gspos("BKHL", 3, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 4.4625, 0, "ONLY");
538 gMC->Gspos("BKHL", 4, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 4.4625, 0, "ONLY");
539 gMC->Gspos("BKHL", 5, "BACK", .8 + 11.4+ 1.6 + 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
540 gMC->Gspos("BKHL", 6, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
541 gMC->Gspos("BKHL", 7, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
542 gMC->Gspos("BKHL", 8, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
543//Place material inside RICH
544 gMC->Gspos("SRIC", 1, "RICH", 0.,0., 0., 0, "ONLY");
c60862bf 545 gMC->Gspos("AIR2", 1, "RICH", 66.3 + 1.2505, 1.276-Param()->GapThickness()/2-Param()->QuartzThickness()-Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY");
546 gMC->Gspos("AIR2", 2, "RICH", -66.3 - 1.2505,1.276-Param()->GapThickness()/2-Param()->QuartzThickness()-Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY");
547 gMC->Gspos("AIR3", 1, "RICH", 0., 1.276-Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, -68.35 - 1.25, 0, "ONLY");
548 gMC->Gspos("AIR3", 2, "RICH", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 68.35 + 1.25, 0, "ONLY");
549 gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.025, 0., 0, "ONLY");
550 gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .188, 0., 0, "ONLY");
551 gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .025, 0., 0, "ONLY");
552 gMC->Gspos("FOOT", 1, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
553 gMC->Gspos("FOOT", 2, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3 , 36.9, 0, "ONLY");
554 gMC->Gspos("FOOT", 3, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
555 gMC->Gspos("FOOT", 4, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
556 gMC->Gspos("FOOT", 5, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
557 gMC->Gspos("FOOT", 6, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
558 gMC->Gspos("FOOT", 7, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
559 gMC->Gspos("FOOT", 8, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
560 gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .2, 0., 0, "ONLY");
3ea9cb08 561// Methane supports
c60862bf 562 gMC->Gspos("SMLG", 1, "SRIC", pcX/2 + (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
563 gMC->Gspos("SMLG", 2, "SRIC", - pcX/2 - (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
564 gMC->Gspos("SMSH", 1, "SRIC", 0., 1.276 + .25, pcY/2 + (68.35 - pcY/2)/2, 0, "ONLY");
565 gMC->Gspos("SMSH", 2, "SRIC", 0., 1.276 + .25, - pcY/2 - (68.35 - pcY/2)/2, 0, "ONLY");
3ea9cb08 566//Freon supports
53fd478b 567 Float_t suppY = 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness() - .2 + .3; //y position of freon supports
568 gMC->Gspos("SFLG", 1, "SRIC", Param()->QuartzWidth()/2 + (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
569 gMC->Gspos("SFLG", 2, "SRIC", - Param()->QuartzWidth()/2 - (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
570 gMC->Gspos("SFSH", 1, "SRIC", 0., suppY, Param()->QuartzLength()/2 + (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
571 gMC->Gspos("SFSH", 2, "SRIC", 0., suppY, - Param()->QuartzLength()/2 - (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
3ea9cb08 572 AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
573//Place spacers
574 Int_t nspacers = 30;
575 for (i = 0; i < nspacers/3; i++) {
576 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
577 gMC->Gspos("SPAC", i, "FRE1", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
578 }
579 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
580 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
581 gMC->Gspos("SPAC", i, "FRE1", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
582 }
583 for (i = (nspacers*2)/3; i < nspacers; ++i) {
584 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
585 gMC->Gspos("SPAC", i, "FRE1", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
586 }
587 for (i = 0; i < nspacers/3; i++) {
588 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
589 gMC->Gspos("SPAC", i, "FRE2", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
590 }
591 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
592 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
593 gMC->Gspos("SPAC", i, "FRE2", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
594 }
595 for (i = (nspacers*2)/3; i < nspacers; ++i) {
596 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
597 gMC->Gspos("SPAC", i, "FRE2", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
598 }
599 gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
600 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
c60862bf 601 gMC->Gspos("OQF1", 1, "SRIC", Param()->OuterFreonWidth()/2 + Param()->InnerFreonWidth()/2 + 2, 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (31.3)
602 gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings
603 gMC->Gspos("OQF1", 3, "SRIC", - (Param()->OuterFreonWidth()/2 + Param()->InnerFreonWidth()/2) - 2, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (-31.3)
604 gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness()/2, 0., 0, "ONLY");
605 gMC->Gspos("GAP ", 1, "META", 0., Param()->GapThickness()/2 - Param()->ProximityGapThickness()/2 - 0.0001, 0., 0, "ONLY");
3ea9cb08 606 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
c60862bf 607 gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + Param()->GapThickness()/2 + .25, 0., 0, "ONLY");
3ea9cb08 608//Wire support placing
c60862bf 609 gMC->Gspos("WSG2", 1, "GAP ", 0., Param()->ProximityGapThickness()/2 - .1, 0., 0, "ONLY");
3ea9cb08 610 gMC->Gspos("WSG1", 1, "CSI ", 0., 0., 0., 0, "ONLY");
c60862bf 611 gMC->Gspos("WSMe", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, 0., 0, "ONLY");
3ea9cb08 612//Backplane placing
c60862bf 613 gMC->Gspos("BACK", 1, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 43.3, 0, "ONLY");
614 gMC->Gspos("BACK", 2, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2 , 43.3, 0, "ONLY");
615 gMC->Gspos("BACK", 3, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
616 gMC->Gspos("BACK", 4, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
617 gMC->Gspos("BACK", 5, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
618 gMC->Gspos("BACK", 6, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
3ea9cb08 619//PCB placing
c60862bf 620 gMC->Gspos("PCB ", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, pcX/4 + .5025 + 2.5, 0, "ONLY");
621 gMC->Gspos("PCB ", 2, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, -pcX/4 - .5025 - 2.5, 0, "ONLY");
3ea9cb08 622
623//place chambers into mother volume ALIC
c021cb15 624 for(int i=1;i<=kNCH;i++){
3ea9cb08 625 AliMatrix(idrotm[1000+i],C(i)->ThetaXd(),C(i)->PhiXd(),
626 C(i)->ThetaYd(),C(i)->PhiYd(),
627 C(i)->ThetaZd(),C(i)->PhiZd());
c021cb15 628 gMC->Gspos("RICH",i,"ALIC",C(i)->X(),C(i)->Y(),C(i)->Z(),idrotm[1000+i], "ONLY");
3ea9cb08 629 }
630
631 if(GetDebug())Info("CreateGeometry","Stop.");
632}//void AliRICH::CreateGeometry()
c60862bf 633//__________________________________________________________________________________________________
3ea9cb08 634void AliRICH::CreateChambers()
53fd478b 635{
636//create all RICH Chambers on each call. Previous chambers deleted
543d5224 637 if(fChambers) delete fChambers;
c60862bf 638 if(GetDebug())Info("CreateChambers","Creating RICH chambers.");
3ea9cb08 639 fChambers=new TObjArray(kNCH);
640 fChambers->SetOwner();
c60862bf 641 for(int i=0;i<kNCH;i++) fChambers->AddAt(new AliRICHChamber(i+1,Param()),i);
3ea9cb08 642}//void AliRICH::CreateChambers()
c021cb15 643//__________________________________________________________________________________________________
c60862bf 644void AliRICH::GenerateFeedbacks(Int_t iChamber,Float_t eloss)
53fd478b 645{
646// Generate FeedBack photons
c021cb15 647//Determine number of feedback photons
ed3ceb24 648 TLorentzVector x4;
649 gMC->TrackPosition(x4);
c712cb2f 650 Int_t sector;
ed3ceb24 651 Int_t iTotQdc=Param()->Loc2TotQdc(C(iChamber)->Glob2Loc(x4),eloss,gMC->TrackPid(),sector);
652 Int_t iNphotons=gMC->GetRandom()->Poisson(P()->AlphaFeedback(sector)*iTotQdc);
653 if(GetDebug())Info("GenerateFeedbacks","N photons=%i",iNphotons);
654 Int_t j;
655 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
c021cb15 656//Generate photons
ed3ceb24 657 for(Int_t i=0;i<iNphotons;i++){//feddbacks loop
c021cb15 658 Double_t ranf[2];
659 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
660 cthf=ranf[0]*2-1.0;
661 if(cthf<0) continue;
662 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
663 phif = ranf[1] * 2 * TMath::Pi();
664
665 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
666 enfp = 7.5e-9;
667 else if(randomNumber<=0.7)
668 enfp = 6.4e-9;
669 else
670 enfp = 7.9e-9;
671
672
673 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
674 gMC->Gdtom(dir, mom, 2);
675 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
676 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
677
678 // Polarisation
679 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
680 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
681 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
682
683 vmod=0;
684 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
685 if (!vmod) for(j=0;j<3;j++) {
686 uswop=e1[j];
687 e1[j]=e3[j];
688 e3[j]=uswop;
689 }
690 vmod=0;
691 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
692 if (!vmod) for(j=0;j<3;j++) {
693 uswop=e2[j];
694 e2[j]=e3[j];
695 e3[j]=uswop;
696 }
697
ed3ceb24 698 vmod=0; for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e1[j]*=vmod;
699 vmod=0; for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e2[j]*=vmod;
c021cb15 700
701 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
702 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
703 gMC->Gdtom(pol, pol, 2);
704 Int_t outputNtracksStored;
5d12ce38 705 gAlice->GetMCApp()->PushTrack(1, //do not transport
706 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
c021cb15 707 kFeedback, //PID
708 mom[0],mom[1],mom[2],mom[3], //track momentum
ed3ceb24 709 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
c021cb15 710 pol[0],pol[1],pol[2], //polarization
ed3ceb24 711 kPFeedBackPhoton,
712 outputNtracksStored,
713 1.0);
714 }//feedbacks loop
715}//GenerateFeedbacks()
c021cb15 716//__________________________________________________________________________________________________