]> git.uio.no Git - u/mrichter/AliRoot.git/blame - RICH/AliRICH.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
AliCRTModule added
[u/mrichter/AliRoot.git] / RICH / AliRICH.cxx
CommitLineData
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>
85a5290f 31#include "AliRICHDigitizer.h"
ddae0931 32
853634d3 33ClassImp(AliRICHhit)
c60862bf 34//__________________________________________________________________________________________________
35void AliRICHhit::Print(Option_t*)const
36{
af3d25a6 37 TVector3 glob(fX,fY,fZ);
38 AliRICH *pRich = (AliRICH*)gAlice->GetDetector("RICH");
39 TVector3 loc = pRich->C(fChamber)->Glob2Loc(glob);
40 ::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 41}
c60862bf 42//__________________________________________________________________________________________________
853634d3 43ClassImp(AliRICHdigit)
c60862bf 44//__________________________________________________________________________________________________
45void AliRICHdigit::Print(Option_t*)const
46{
ed3ceb24 47 ::Info("digit","ID=%6i, PID=%9i, c=%2i, x=%3i, y=%3i, q=%8.2f, TID1=%5i, TID2=%5i, TID3=%5i",
48 Id(), fCombiPid,fChamber,fPadX,fPadY,fQdc,fTracks[0],fTracks[1],fTracks[2]);
c1863e3c 49}
50//__________________________________________________________________________________________________
51ClassImp(AliRICHcluster)
52//__________________________________________________________________________________________________
53void AliRICHcluster::Print(Option_t*)const
54{
ed3ceb24 55 ::Info("cluster","CombiPid=%10i, c=%2i, size=%4i, dim=%5i, x=%7.3f, y=%7.3f, Q=%6i, st=%i",
56 fCombiPid,fChamber,fSize,fDimXY,fX,fY,fQdc,fStatus);
c1863e3c 57}
c60862bf 58//__________________________________________________________________________________________________
af3d25a6 59ClassImp(AliRICHreco)
60//__________________________________________________________________________________________________
61void AliRICHreco::Print(Option_t*)const
62{
63 ::Info("reco","ThetaCherenkov=%9.6f, Nphotons=%4i, TID=%9i",fThetaCherenkov,fNphotons,fTid);
64}
65//__________________________________________________________________________________________________
c60862bf 66ClassImp(AliRICH)
67//__________________________________________________________________________________________________
15d8311d 68// RICH manager class
c60862bf 69//BEGIN_HTML
15d8311d 70/*
71 <img src="gif/alirich.gif">
72*/
c60862bf 73//END_HTML
74//__________________________________________________________________________________________________
fe4da5cc 75AliRICH::AliRICH()
c60862bf 76 :AliDetector()
53fd478b 77{
78//Default ctor should not contain any new operators
c60862bf 79 fpParam =0;
543d5224 80 fChambers =0;
81//AliDetector ctor deals with Hits and Digits
c60862bf 82 fSdigits =0; fNsdigits =0;
83 fDigitsNew =0; for(int i=0;i<kNCH;i++) fNdigitsNew[i] =0;
84 fClusters =0; for(int i=0;i<kNCH;i++) fNclusters[i]=0;
85
86 fCerenkovs =0; fNcerenkovs =0;
87 fSpecials =0; fNspecials =0;
543d5224 88 fCkovNumber=fFreonProd=0;
15d8311d 89}//AliRICH::AliRICH()
c021cb15 90//__________________________________________________________________________________________________
fe4da5cc 91AliRICH::AliRICH(const char *name, const char *title)
dfb4e77d 92 :AliDetector(name,title)
53fd478b 93{
94//Named ctor
dfb4e77d 95 if(GetDebug())Info("named ctor","Start.");
c60862bf 96 fpParam = new AliRICHParam;
97 fChambers = 0; CreateChambers();
543d5224 98//AliDetector ctor deals with Hits and Digits (reset them to 0, does not create them)
5d12ce38 99 fHits= 0; CreateHits(); gAlice->GetMCApp()->AddHitList(fHits);
c60862bf 100 fSdigits= 0;
101 fDigitsNew= 0;
102 fClusters= 0;
103
5d12ce38 104 fCerenkovs= 0; CreateCerenkovsOld(); gAlice->GetMCApp()->AddHitList(fCerenkovs);
c60862bf 105 fSpecials= 0; CreateSpecialsOld();
c60862bf 106
107 fCkovNumber=fFreonProd=0;
dfb4e77d 108 if(GetDebug())Info("named ctor","Stop.");
109}//AliRICH::AliRICH(const char *name, const char *title)
c021cb15 110//__________________________________________________________________________________________________
fe4da5cc 111AliRICH::~AliRICH()
53fd478b 112{
113//dtor
dfb4e77d 114 if(GetDebug()) Info("dtor","Start.");
237c933d 115
c60862bf 116 if(fpParam) delete fpParam;
117 if(fChambers) delete fChambers;
118
119 if(fHits) delete fHits;
120 if(fSdigits) delete fSdigits;
121 if(fDigits) delete fDigits;
122 if(fDigitsNew) {fDigitsNew->Delete(); delete fDigitsNew;}
123 if(fClusters) {fClusters->Delete(); delete fClusters;}
124
125 if(fCerenkovs) delete fCerenkovs;
126 if(fSpecials) delete fSpecials;
dfb4e77d 127 if(GetDebug()) Info("dtor","Stop.");
128}//AliRICH::~AliRICH()
c021cb15 129//__________________________________________________________________________________________________
3ea9cb08 130void AliRICH::Hits2SDigits()
53fd478b 131{
132//Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
3ea9cb08 133 if(GetDebug()) Info("Hit2SDigits","Start.");
853634d3 134 if(GetDebug()) Info("Hit2SDigits","Stop.");
c021cb15 135}//void AliRICH::Hits2SDigits()
136//__________________________________________________________________________________________________
85a5290f 137AliDigitizer* AliRICH::CreateDigitizer(AliRunDigitizer* manager)
138{
139 return new AliRICHDigitizer(manager);
140}
141//__________________________________________________________________________________________________
dfb4e77d 142void AliRICH::SDigits2Digits()
53fd478b 143{
144//Generate digits from sdigits.
dfb4e77d 145 if(GetDebug()) Info("SDigits2Digits","Start.");
dfb4e77d 146 if(GetDebug()) Info("SDigits2Digits","Stop.");
53fd478b 147}//SDigits2Digits()
c021cb15 148//__________________________________________________________________________________________________
dfb4e77d 149void AliRICH::BuildGeometry()
53fd478b 150{
151//Builds a TNode geometry for event display
dfb4e77d 152 if(GetDebug())Info("BuildGeometry","Start.");
237c933d 153
3ea9cb08 154 TNode *node, *subnode, *top;
155 top=gAlice->GetGeometry()->GetNode("alice");
c24372d0 156
3ea9cb08 157 new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15);
53d98323 158
c60862bf 159 Float_t wid=Param()->SectorSizeX();
160 Float_t len=Param()->SectorSizeY();
3ea9cb08 161 new TBRIK("PHOTO","PHOTO","void",wid/2,0.1,len/2);
162
c021cb15 163 for(int i=1;i<=kNCH;i++){
237c933d 164 top->cd();
c021cb15 165 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 166 node->SetLineColor(kRed);
91975aa2 167 node->cd();
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",0,5,len/2+Param()->DeadZone()/2,"");
91975aa2 172 subnode->SetLineColor(kGreen);
173 fNodes->Add(subnode);
c60862bf 174 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),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);
c60862bf 180 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,-len/2 -Param()->DeadZone()/2,"");
91975aa2 181 subnode->SetLineColor(kGreen);
182 fNodes->Add(subnode);
c60862bf 183 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,-len/2 - Param()->DeadZone()/2,"");
91975aa2 184 subnode->SetLineColor(kGreen);
185 fNodes->Add(subnode);
237c933d 186 fNodes->Add(node);
3ea9cb08 187 }
dfb4e77d 188 if(GetDebug())Info("BuildGeometry","Stop.");
189}//void AliRICH::BuildGeometry()
c60862bf 190
dfb4e77d 191//______________________________________________________________________________
452a64c6 192void AliRICH::CreateMaterials()
193{
194 //
195 // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
af3d25a6 196
197#include "Opticals.h"
198
c60862bf 199 Float_t a=0,z=0,den=0,radl=0,absl=0;
200 Float_t tmaxfd=-10.0, deemax=-0.2, stemax=-0.1,epsil=0.001, stmin=-0.001;
201 Int_t isxfld = gAlice->Field()->Integ();
202 Float_t sxmgmx = gAlice->Field()->Max();
452a64c6 203
c60862bf 204 AliMaterial( 1, "Air $",a=14.61,z=7.3, den=0.001205,radl=30420.0,absl=67500);//(Air)
205 AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
452a64c6 206
c60862bf 207 AliMaterial( 6, "HON", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //(C)-equivalent radl
208 AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
209
210 AliMaterial(16, "CSI", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //CsI-radl equivalent
211 AliMedium(kCSI, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
212
213 AliMaterial(11, "GRI", a=63.54,z=29.0,den=8.96, radl=1.43, absl=0); //anode grid (Cu)
af3d25a6 214 AliMedium(7, "GRID$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 215
216 AliMaterial(50, "ALUM", a=26.98,z=13.0,den=2.7, radl=8.9, absl=0); //aluminium sheet (Al)
217 AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
218
219 AliMaterial(31, "COPPER$", a=63.54,z=29.0,den=8.96, radl=1.4, absl=0); //(Cu)
220 AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
221
222 Float_t aQuartz[2]={28.09,16.0}; Float_t zQuartz[2]={14.00, 8.0}; Float_t wmatQuartz[2]={1,2};
223 AliMixture (20, "QUA",aQuartz,zQuartz,den=2.64,-2, wmatQuartz);//Quarz (SiO2) - trasnparent
af3d25a6 224 AliMedium(3, "QUARTZ$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 225
226 AliMixture (21, "QUAO",aQuartz, zQuartz, den=2.64, -2, wmatQuartz);//Quarz (SiO2) - opaque
af3d25a6 227 AliMedium(8, "QUARTZO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 228
229 Float_t aFreon[2]={12,19}; Float_t zFreon[2]={6,9}; Float_t wmatFreon[2]={6,14};
230 AliMixture (30, "FRE",aFreon,zFreon,den=1.7,-2,wmatFreon);//Freon (C6F14)
231 AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
232
233 Float_t aMethane[2]={12.01,1}; Float_t zMethane[2]={6,1}; Float_t wmatMethane[2]={1,4};
234 AliMixture (40, "MET", aMethane, zMethane, den=7.17e-4,-2, wmatMethane);//methane (CH4)
af3d25a6 235 AliMedium(5, "METHANE$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 236
237 AliMixture (41, "METG", aMethane, zMethane, den=7.17e-4, -2, wmatMethane);
238 AliMedium(kGAP, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, 0.1, -deemax, epsil, -stmin);
239
240 Float_t aGlass[5]={12.01, 28.09, 16., 10.8, 23.};
241 Float_t zGlass[5]={ 6., 14., 8., 5., 11.};
242 Float_t wGlass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
243 AliMixture (32, "GLASS",aGlass, zGlass, den=1.74, 5, wGlass);//Glass 50%C+10.5%Si+35.5%O+3% + 1%
244 AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
245
246 Int_t *idtmed = fIdtmed->GetArray()-999;
af3d25a6 247 gMC->SetCerenkov(idtmed[1000], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
248 gMC->SetCerenkov(idtmed[1001], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
249 gMC->SetCerenkov(idtmed[1002], kNbins, aPckov, aAbsSiO2, aQeAll, aIdxSiO2);
250 gMC->SetCerenkov(idtmed[1003], kNbins, aPckov, aAbsC6F14, aQeAll, aIdxC6F14);
251 gMC->SetCerenkov(idtmed[1004], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
252 gMC->SetCerenkov(idtmed[1005], kNbins, aPckov, aAbsCsI, aQeCsI, aIdxCH4);
253 gMC->SetCerenkov(idtmed[1006], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
254 gMC->SetCerenkov(idtmed[1007], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
255 gMC->SetCerenkov(idtmed[1008], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
256 gMC->SetCerenkov(idtmed[1009], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
257 gMC->SetCerenkov(idtmed[1010], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
258
c60862bf 259}//void AliRICH::CreateMaterials()
c021cb15 260//__________________________________________________________________________________________________
53fd478b 261Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const
452a64c6 262{
263
264 //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
265
266 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,
267 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,
268 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
452a64c6 269 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
270 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
271 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
272 1.72,1.53};
452a64c6 273 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
274 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
275 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
276 1.714,1.498};
277 Float_t xe=ene;
278 Int_t j=Int_t(xe*10)-49;
279 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
280 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
281
282 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
283 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
284
285 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
286 Float_t tanin=sinin/pdoti;
287
288 Float_t c1=cn*cn-ck*ck-sinin*sinin;
289 Float_t c2=4*cn*cn*ck*ck;
290 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
291 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
292
293 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
294 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
295
296
297 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
298 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
299
300 Float_t sigraf=18.;
301 Float_t lamb=1240/ene;
302 Float_t fresn;
303
304 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
305
306 if(pola)
307 {
308 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
309 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
310 }
311 else
312 fresn=0.5*(rp+rs);
313
314 fresn = fresn*rO;
315 return(fresn);
53fd478b 316}//Fresnel()
c021cb15 317//__________________________________________________________________________________________________
53fd478b 318Float_t AliRICH::AbsoCH4(Float_t x)const
319{
320//Evaluate the absorbtion lenght of CH4
cb8189e7 321 Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
cb8189e7 322 Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
3d130a45 323 const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3
324 const Float_t kPressure=750.,kTemperature=283.;
53fd478b 325 const Float_t kPn=kPressure/760.;
326 const Float_t kTn=kTemperature/273.16;
327 const Float_t kC0=-1.655279e-1;
328 const Float_t kC1=6.307392e-2;
329 const Float_t kC2=-8.011441e-3;
330 const Float_t kC3=3.392126e-4;
3d130a45 331
332 Float_t crossSection=0;
333 if (x<7.75)
334 crossSection=.06e-22;
335 else if(x>=7.75 && x<=8.1){ //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978)
53fd478b 336 crossSection=(kC0+kC1*x+kC2*x*x+kC3*x*x*x)*1.e-18;
3d130a45 337 }else if (x> 8.1){
338 Int_t j=0;
339 while (x<=em[j] || x>=em[j+1]){
340 j++;
341 Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
342 crossSection=(sch4[j]+a*(x-em[j]))*1e-22;
452a64c6 343 }
3d130a45 344 }//if
452a64c6 345
53fd478b 346 Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular density 1/cm-3
3d130a45 347 return 1./(density*crossSection);
cb8189e7 348}//AbsoCH4()
c021cb15 349//__________________________________________________________________________________________________
dfb4e77d 350void AliRICH::MakeBranch(Option_t* option)
53fd478b 351{
352//Create Tree branches for the RICH.
dfb4e77d 353 if(GetDebug())Info("MakeBranch","Start with option= %s.",option);
354
355 const Int_t kBufferSize = 4000;
dfb4e77d 356
dfb4e77d 357 const char *cH = strstr(option,"H");
358 const char *cD = strstr(option,"D");
359 const char *cR = strstr(option,"R");
360 const char *cS = strstr(option,"S");
361
c60862bf 362 if(cH&&TreeH()){//H
363 CreateHits(); //branch will be created in AliDetector::MakeBranch
364 CreateCerenkovsOld(); MakeBranchInTree(TreeH(),"RICHCerenkov", &fCerenkovs, kBufferSize,0);
365 CreateSpecialsOld(); MakeBranchInTree(TreeH(),"RICHSpecials", &fSpecials,kBufferSize,0);
366 }//H
dfb4e77d 367 AliDetector::MakeBranch(option);//this is after cH because we need to guarantee that fHits array is created
368
c60862bf 369 if(cS&&fLoader->TreeS()){//S
c1863e3c 370 CreateSDigits(); MakeBranchInTree(fLoader->TreeS(),"RICH",&fSdigits,kBufferSize,0) ;
c60862bf 371 }//S
dfb4e77d 372
c60862bf 373 if(cD&&fLoader->TreeD()){//D
543d5224 374 CreateDigits();
cb8189e7 375 for(Int_t i=0;i<kNCH;i++){
543d5224 376 MakeBranchInTree(fLoader->TreeD(),Form("%s%d",GetName(),i+1),&((*fDigitsNew)[i]),kBufferSize,0);
377 }
c60862bf 378 }//D
379
380 if(cR&&fLoader->TreeR()){//R
cb8189e7 381 CreateClusters();
aed240d4 382 for(Int_t i=0;i<kNCH;i++)
383 MakeBranchInTree(fLoader->TreeR(),Form("%sClusters%d",GetName(),i+1), &((*fClusters)[i]), kBufferSize, 0);
cb8189e7 384 }//R
dfb4e77d 385 if(GetDebug())Info("MakeBranch","Stop.");
c021cb15 386}//void AliRICH::MakeBranch(Option_t* option)
c60862bf 387//__________________________________________________________________________________________________
dfb4e77d 388void AliRICH::SetTreeAddress()
53fd478b 389{
390//Set branch address for the Hits and Digits Tree.
dfb4e77d 391 if(GetDebug())Info("SetTreeAddress","Start.");
c60862bf 392
dfb4e77d 393 TBranch *branch;
dfb4e77d 394
c60862bf 395 if(fLoader->TreeH()){//H
853634d3 396 if(GetDebug())Info("SetTreeAddress","tree H is requested.");
c60862bf 397 CreateHits();//branch map will be in AliDetector::SetTreeAddress
398 branch=fLoader->TreeH()->GetBranch("RICHCerenkov"); if(branch){CreateCerenkovsOld(); branch->SetAddress(&fCerenkovs);}
399 branch=fLoader->TreeH()->GetBranch("RICHSpecials"); if(branch){CreateSpecialsOld(); branch->SetAddress(&fSpecials);}
400 }//H
c021cb15 401 AliDetector::SetTreeAddress();//this is after TreeH because we need to guarantee that fHits array is created
402
c60862bf 403 if(fLoader->TreeS()){//S
853634d3 404 if(GetDebug())Info("SetTreeAddress","tree S is requested.");
c1863e3c 405 branch=fLoader->TreeS()->GetBranch(GetName()); if(branch){CreateSDigits(); branch->SetAddress(&fSdigits);}
c60862bf 406 }//S
dfb4e77d 407
c60862bf 408 if(fLoader->TreeD()){//D
853634d3 409 if(GetDebug())Info("SetTreeAddress","tree D is requested.");
c60862bf 410 for(int i=0;i<kNCH;i++){
411 branch=fLoader->TreeD()->GetBranch(Form("%s%d",GetName(),i+1));
412 if(branch){CreateDigits(); branch->SetAddress(&((*fDigitsNew)[i]));}
aed240d4 413 }
c60862bf 414 }//D
dfb4e77d 415
c60862bf 416 if(fLoader->TreeR()){//R
853634d3 417 if(GetDebug())Info("SetTreeAddress","tree R is requested.");
c60862bf 418 for(int i=0;i<kNCH;i++){
419 branch=fLoader->TreeR()->GetBranch(Form("%sClusters%d" ,GetName(),i+1));
cb8189e7 420 if(branch){CreateClusters(); branch->SetAddress(&((*fClusters)[i]));}
dfb4e77d 421 }
c60862bf 422 }//R
dfb4e77d 423 if(GetDebug())Info("SetTreeAddress","Stop.");
424}//void AliRICH::SetTreeAddress()
c021cb15 425//__________________________________________________________________________________________________
dfb4e77d 426void AliRICH::Print(Option_t *option)const
427{
53fd478b 428//Debug printout
dfb4e77d 429 TObject::Print(option);
c60862bf 430 Param()->Dump();
c021cb15 431 fChambers->Print(option);
dfb4e77d 432}//void AliRICH::Print(Option_t *option)const
c021cb15 433//__________________________________________________________________________________________________
3ea9cb08 434void AliRICH::CreateGeometry()
53fd478b 435{
436//Creates detailed geometry simulation (currently GEANT volumes tree)
3ea9cb08 437 if(GetDebug())Info("CreateGeometry","Start.");
3ea9cb08 438//Opaque quartz thickness
53fd478b 439 Float_t oquaThickness = .5;
3ea9cb08 440//CsI dimensions
c60862bf 441 Float_t pcX=Param()->PcSizeX();
442 Float_t pcY=Param()->PcSizeY();
3ea9cb08 443
444 Int_t *idtmed = fIdtmed->GetArray()-999;
445
446 Int_t i;
447 Float_t zs;
448 Int_t idrotm[1099];
449 Float_t par[3];
450
451//External aluminium box
ed3ceb24 452 par[0]=68.8;par[1]=13;par[2]=70.86; gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
3ea9cb08 453//Air
c60862bf 454 par[0]=66.3; par[1] = 13; par[2] = 68.35; gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
3ea9cb08 455//Air 2 (cutting the lower part of the box)
c60862bf 456 par[0]=1.25; par[1] = 3; par[2] = 70.86; gMC->Gsvolu("AIR2", "BOX ", idtmed[1000], par, 3);
3ea9cb08 457//Air 3 (cutting the lower part of the box)
c60862bf 458 par[0]=66.3; par[1] = 3; par[2] = 1.2505; gMC->Gsvolu("AIR3", "BOX ", idtmed[1000], par, 3);
3ea9cb08 459//Honeycomb
c60862bf 460 par[0]=66.3;par[1]=0.188; par[2] = 68.35; gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
3ea9cb08 461//Aluminium sheet
c60862bf 462 par[0]=66.3;par[1]=0.025;par[2]=68.35; gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
3ea9cb08 463 //par[0] = 66.5; par[1] = .025; par[2] = 63.1;
3ea9cb08 464//Quartz
c60862bf 465 par[0]=Param()->QuartzWidth()/2;par[1]=Param()->QuartzThickness()/2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 466 gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
467//Spacers (cylinders)
c60862bf 468 par[0]=0.;par[1]=.5;par[2]=Param()->FreonThickness()/2; gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
3ea9cb08 469//Feet (freon slabs supports)
c60862bf 470 par[0] = .7; par[1] = .3; par[2] = 1.9; gMC->Gsvolu("FOOT", "BOX", idtmed[1009], par, 3);
3ea9cb08 471//Opaque quartz
c60862bf 472 par[0]=Param()->QuartzWidth()/2;par[1]= .2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 473 gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
474//Frame of opaque quartz
c60862bf 475 par[0]=Param()->OuterFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->OuterFreonLength()/2;
3ea9cb08 476 gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
c60862bf 477 par[0]=Param()->InnerFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->InnerFreonLength()/2;
3ea9cb08 478 gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
479//Freon
53fd478b 480 par[0]=Param()->OuterFreonWidth()/2 - oquaThickness;
c60862bf 481 par[1]=Param()->FreonThickness()/2;
53fd478b 482 par[2]=Param()->OuterFreonLength()/2 - 2*oquaThickness;
3ea9cb08 483 gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
484
53fd478b 485 par[0]=Param()->InnerFreonWidth()/2 - oquaThickness;
c60862bf 486 par[1]=Param()->FreonThickness()/2;
53fd478b 487 par[2]=Param()->InnerFreonLength()/2 - 2*oquaThickness;
3ea9cb08 488 gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
489//Methane
c60862bf 490 par[0]=pcX/2;par[1]=Param()->GapThickness()/2;par[2]=pcY/2; gMC->Gsvolu("META","BOX ",idtmed[1004], par, 3);
3ea9cb08 491//Methane gap
c60862bf 492 par[0]=pcX/2;par[1]=Param()->ProximityGapThickness()/2;par[2]=pcY/2;gMC->Gsvolu("GAP ","BOX ",(*fIdtmed)[kGAP],par,3);
493//CsI PC
494 par[0]=pcX/2;par[1]=.25;par[2]=pcY/2; gMC->Gsvolu("CSI ", "BOX ", (*fIdtmed)[kCSI], par, 3);
3ea9cb08 495//Anode grid
c60862bf 496 par[0] = 0.;par[1] = .001;par[2] = 20.; gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
3ea9cb08 497
498//Wire supports
499//Bar of metal
c60862bf 500 par[0]=pcX/2;par[1]=1.05;par[2]=1.05; gMC->Gsvolu("WSMe", "BOX ", idtmed[1009], par, 3);
3ea9cb08 501//Ceramic pick up (base)
c60862bf 502 par[0]=pcX/2;par[1]= .25;par[2]=1.05; gMC->Gsvolu("WSG1", "BOX ", idtmed[1010], par, 3);
3ea9cb08 503//Ceramic pick up (head)
c60862bf 504 par[0] = pcX/2;par[1] = .1;par[2] = .1; gMC->Gsvolu("WSG2", "BOX ", idtmed[1010], par, 3);
3ea9cb08 505
506//Aluminium supports for methane and CsI
507//Short bar
c60862bf 508 par[0]=pcX/2;par[1]=Param()->GapThickness()/2 + .25; par[2] = (68.35 - pcY/2)/2;
3ea9cb08 509 gMC->Gsvolu("SMSH", "BOX", idtmed[1009], par, 3);
510//Long bar
c60862bf 511 par[0]=(66.3 - pcX/2)/2;par[1]=Param()->GapThickness()/2+.25;par[2]=pcY/2+68.35-pcY/2;
3ea9cb08 512 gMC->Gsvolu("SMLG", "BOX", idtmed[1009], par, 3);
513
514//Aluminium supports for freon
515//Short bar
c60862bf 516 par[0] = Param()->QuartzWidth()/2; par[1] = .3; par[2] = (68.35 - Param()->QuartzLength()/2)/2;
3ea9cb08 517 gMC->Gsvolu("SFSH", "BOX", idtmed[1009], par, 3);
518//Long bar
c60862bf 519 par[0] = (66.3 - Param()->QuartzWidth()/2)/2; par[1] = .3;
520 par[2] = Param()->QuartzLength()/2 + 68.35 - Param()->QuartzLength()/2;
3ea9cb08 521 gMC->Gsvolu("SFLG", "BOX", idtmed[1009], par, 3);
522//PCB backplane
c60862bf 523 par[0] = pcX/2;par[1] = .25; par[2] = pcY/4 -.5025; gMC->Gsvolu("PCB ", "BOX", idtmed[1011], par, 3);
3ea9cb08 524
525//Backplane supports
526//Aluminium slab
c60862bf 527 par[0] = 33.15;par[1] = 2;par[2] = 21.65; gMC->Gsvolu("BACK", "BOX", idtmed[1009], par, 3);
3ea9cb08 528//Big hole
c60862bf 529 par[0] = 9.05; par[1] = 2; par[2] = 4.4625; gMC->Gsvolu("BKHL", "BOX", idtmed[1000], par, 3);
3ea9cb08 530//Small hole
c60862bf 531 par[0] = 5.7;par[1] = 2;par[2] = 4.4625; gMC->Gsvolu("BKHS", "BOX", idtmed[1000], par, 3);
3ea9cb08 532//Place holes inside backplane support
533 gMC->Gspos("BKHS", 1, "BACK", .8 + 5.7,0., .6 + 4.4625, 0, "ONLY");
534 gMC->Gspos("BKHS", 2, "BACK", -.8 - 5.7,0., .6 + 4.4625, 0, "ONLY");
535 gMC->Gspos("BKHS", 3, "BACK", .8 + 5.7,0., -.6 - 4.4625, 0, "ONLY");
536 gMC->Gspos("BKHS", 4, "BACK", -.8 - 5.7,0., -.6 - 4.4625, 0, "ONLY");
537 gMC->Gspos("BKHS", 5, "BACK", .8 + 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
538 gMC->Gspos("BKHS", 6, "BACK", -.8 - 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
539 gMC->Gspos("BKHS", 7, "BACK", .8 + 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
540 gMC->Gspos("BKHS", 8, "BACK", -.8 - 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
541 gMC->Gspos("BKHL", 1, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., .6 + 4.4625, 0, "ONLY");
542 gMC->Gspos("BKHL", 2, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 4.4625, 0, "ONLY");
543 gMC->Gspos("BKHL", 3, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 4.4625, 0, "ONLY");
544 gMC->Gspos("BKHL", 4, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 4.4625, 0, "ONLY");
545 gMC->Gspos("BKHL", 5, "BACK", .8 + 11.4+ 1.6 + 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
546 gMC->Gspos("BKHL", 6, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
547 gMC->Gspos("BKHL", 7, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
548 gMC->Gspos("BKHL", 8, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
549//Place material inside RICH
550 gMC->Gspos("SRIC", 1, "RICH", 0.,0., 0., 0, "ONLY");
c60862bf 551 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");
552 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");
553 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");
554 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");
555 gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.025, 0., 0, "ONLY");
556 gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .188, 0., 0, "ONLY");
557 gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .025, 0., 0, "ONLY");
558 gMC->Gspos("FOOT", 1, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
559 gMC->Gspos("FOOT", 2, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3 , 36.9, 0, "ONLY");
560 gMC->Gspos("FOOT", 3, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
561 gMC->Gspos("FOOT", 4, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
562 gMC->Gspos("FOOT", 5, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
563 gMC->Gspos("FOOT", 6, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
564 gMC->Gspos("FOOT", 7, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
565 gMC->Gspos("FOOT", 8, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
566 gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .2, 0., 0, "ONLY");
3ea9cb08 567// Methane supports
c60862bf 568 gMC->Gspos("SMLG", 1, "SRIC", pcX/2 + (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
569 gMC->Gspos("SMLG", 2, "SRIC", - pcX/2 - (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
570 gMC->Gspos("SMSH", 1, "SRIC", 0., 1.276 + .25, pcY/2 + (68.35 - pcY/2)/2, 0, "ONLY");
571 gMC->Gspos("SMSH", 2, "SRIC", 0., 1.276 + .25, - pcY/2 - (68.35 - pcY/2)/2, 0, "ONLY");
3ea9cb08 572//Freon supports
53fd478b 573 Float_t suppY = 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness() - .2 + .3; //y position of freon supports
574 gMC->Gspos("SFLG", 1, "SRIC", Param()->QuartzWidth()/2 + (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
575 gMC->Gspos("SFLG", 2, "SRIC", - Param()->QuartzWidth()/2 - (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
576 gMC->Gspos("SFSH", 1, "SRIC", 0., suppY, Param()->QuartzLength()/2 + (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
577 gMC->Gspos("SFSH", 2, "SRIC", 0., suppY, - Param()->QuartzLength()/2 - (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
3ea9cb08 578 AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
579//Place spacers
580 Int_t nspacers = 30;
581 for (i = 0; i < nspacers/3; i++) {
582 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
583 gMC->Gspos("SPAC", i, "FRE1", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
584 }
585 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
586 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
587 gMC->Gspos("SPAC", i, "FRE1", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
588 }
589 for (i = (nspacers*2)/3; i < nspacers; ++i) {
590 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
591 gMC->Gspos("SPAC", i, "FRE1", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
592 }
593 for (i = 0; i < nspacers/3; i++) {
594 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
595 gMC->Gspos("SPAC", i, "FRE2", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
596 }
597 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
598 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
599 gMC->Gspos("SPAC", i, "FRE2", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
600 }
601 for (i = (nspacers*2)/3; i < nspacers; ++i) {
602 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
603 gMC->Gspos("SPAC", i, "FRE2", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
604 }
605 gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
606 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
c60862bf 607 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)
608 gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings
609 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)
610 gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness()/2, 0., 0, "ONLY");
611 gMC->Gspos("GAP ", 1, "META", 0., Param()->GapThickness()/2 - Param()->ProximityGapThickness()/2 - 0.0001, 0., 0, "ONLY");
3ea9cb08 612 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
c60862bf 613 gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + Param()->GapThickness()/2 + .25, 0., 0, "ONLY");
3ea9cb08 614//Wire support placing
c60862bf 615 gMC->Gspos("WSG2", 1, "GAP ", 0., Param()->ProximityGapThickness()/2 - .1, 0., 0, "ONLY");
3ea9cb08 616 gMC->Gspos("WSG1", 1, "CSI ", 0., 0., 0., 0, "ONLY");
c60862bf 617 gMC->Gspos("WSMe", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, 0., 0, "ONLY");
3ea9cb08 618//Backplane placing
c60862bf 619 gMC->Gspos("BACK", 1, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 43.3, 0, "ONLY");
620 gMC->Gspos("BACK", 2, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2 , 43.3, 0, "ONLY");
621 gMC->Gspos("BACK", 3, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
622 gMC->Gspos("BACK", 4, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
623 gMC->Gspos("BACK", 5, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
624 gMC->Gspos("BACK", 6, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
3ea9cb08 625//PCB placing
c60862bf 626 gMC->Gspos("PCB ", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, pcX/4 + .5025 + 2.5, 0, "ONLY");
627 gMC->Gspos("PCB ", 2, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, -pcX/4 - .5025 - 2.5, 0, "ONLY");
3ea9cb08 628
629//place chambers into mother volume ALIC
c021cb15 630 for(int i=1;i<=kNCH;i++){
3ea9cb08 631 AliMatrix(idrotm[1000+i],C(i)->ThetaXd(),C(i)->PhiXd(),
632 C(i)->ThetaYd(),C(i)->PhiYd(),
633 C(i)->ThetaZd(),C(i)->PhiZd());
c021cb15 634 gMC->Gspos("RICH",i,"ALIC",C(i)->X(),C(i)->Y(),C(i)->Z(),idrotm[1000+i], "ONLY");
3ea9cb08 635 }
636
637 if(GetDebug())Info("CreateGeometry","Stop.");
638}//void AliRICH::CreateGeometry()
c60862bf 639//__________________________________________________________________________________________________
3ea9cb08 640void AliRICH::CreateChambers()
53fd478b 641{
642//create all RICH Chambers on each call. Previous chambers deleted
543d5224 643 if(fChambers) delete fChambers;
c60862bf 644 if(GetDebug())Info("CreateChambers","Creating RICH chambers.");
3ea9cb08 645 fChambers=new TObjArray(kNCH);
646 fChambers->SetOwner();
c60862bf 647 for(int i=0;i<kNCH;i++) fChambers->AddAt(new AliRICHChamber(i+1,Param()),i);
3ea9cb08 648}//void AliRICH::CreateChambers()
c021cb15 649//__________________________________________________________________________________________________
c60862bf 650void AliRICH::GenerateFeedbacks(Int_t iChamber,Float_t eloss)
53fd478b 651{
652// Generate FeedBack photons
c021cb15 653//Determine number of feedback photons
ed3ceb24 654 TLorentzVector x4;
655 gMC->TrackPosition(x4);
c712cb2f 656 Int_t sector;
ed3ceb24 657 Int_t iTotQdc=Param()->Loc2TotQdc(C(iChamber)->Glob2Loc(x4),eloss,gMC->TrackPid(),sector);
658 Int_t iNphotons=gMC->GetRandom()->Poisson(P()->AlphaFeedback(sector)*iTotQdc);
659 if(GetDebug())Info("GenerateFeedbacks","N photons=%i",iNphotons);
660 Int_t j;
661 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
c021cb15 662//Generate photons
ed3ceb24 663 for(Int_t i=0;i<iNphotons;i++){//feddbacks loop
c021cb15 664 Double_t ranf[2];
665 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
666 cthf=ranf[0]*2-1.0;
667 if(cthf<0) continue;
668 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
669 phif = ranf[1] * 2 * TMath::Pi();
670
671 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
672 enfp = 7.5e-9;
673 else if(randomNumber<=0.7)
674 enfp = 6.4e-9;
675 else
676 enfp = 7.9e-9;
677
678
679 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
680 gMC->Gdtom(dir, mom, 2);
681 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
682 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
683
684 // Polarisation
685 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
686 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
687 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
688
689 vmod=0;
690 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
691 if (!vmod) for(j=0;j<3;j++) {
692 uswop=e1[j];
693 e1[j]=e3[j];
694 e3[j]=uswop;
695 }
696 vmod=0;
697 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
698 if (!vmod) for(j=0;j<3;j++) {
699 uswop=e2[j];
700 e2[j]=e3[j];
701 e3[j]=uswop;
702 }
703
ed3ceb24 704 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;
705 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 706
707 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
708 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
709 gMC->Gdtom(pol, pol, 2);
710 Int_t outputNtracksStored;
5d12ce38 711 gAlice->GetMCApp()->PushTrack(1, //do not transport
712 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
c021cb15 713 kFeedback, //PID
714 mom[0],mom[1],mom[2],mom[3], //track momentum
ed3ceb24 715 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
c021cb15 716 pol[0],pol[1],pol[2], //polarization
ed3ceb24 717 kPFeedBackPhoton,
718 outputNtracksStored,
719 1.0);
720 }//feedbacks loop
721}//GenerateFeedbacks()
c021cb15 722//__________________________________________________________________________________________________