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Protection again hit in dead zone, new Sdigits -> Digits in AliRICHDigitizer
[u/mrichter/AliRoot.git] / RICH / AliRICH.cxx
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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>
3582c1f9 26#include <TParticle.h>
27#include <AliStack.h>
c60862bf 28#include <AliMagF.h>
c60862bf 29#include <AliRun.h>
30#include <AliRunDigitizer.h>
53fd478b 31#include <AliMC.h>
5d12ce38 32#include <TVirtualMC.h>
ddae0931 33
853634d3 34ClassImp(AliRICHhit)
c60862bf 35//__________________________________________________________________________________________________
36void AliRICHhit::Print(Option_t*)const
37{
3582c1f9 38 ::Info("hit","Ch=%1i, TID=%6i, eloss=%9.3f eV, in-out dist=%9.4f, OUT(%7.2f,%7.2f,%7.2f)"
39 ,fChamber,fTrack,fEloss*1e9,Length(),fOutX3.X(),fOutX3.Y(),fOutX3.Z());
c1863e3c 40}
c60862bf 41//__________________________________________________________________________________________________
853634d3 42ClassImp(AliRICHdigit)
c60862bf 43//__________________________________________________________________________________________________
44void AliRICHdigit::Print(Option_t*)const
45{
3582c1f9 46 ::Info("digit","csxy=%6i, cfm=%9i, c=%2i, x=%3i, y=%3i, q=%8.3f, 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{
6865fb8d 54 ::Info("cluster","CombiPid=%10i, c=%2i, size=%6i, dim=%5i, x=%7.3f, y=%7.3f, Q=%6i, st=%i",
ed3ceb24 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;
c92eb8ad 84 fRecos =0; fNrecos =0;
15d8311d 85}//AliRICH::AliRICH()
c021cb15 86//__________________________________________________________________________________________________
fe4da5cc 87AliRICH::AliRICH(const char *name, const char *title)
dfb4e77d 88 :AliDetector(name,title)
53fd478b 89{
90//Named ctor
dfb4e77d 91 if(GetDebug())Info("named ctor","Start.");
c60862bf 92 fpParam = new AliRICHParam;
93 fChambers = 0; CreateChambers();
543d5224 94//AliDetector ctor deals with Hits and Digits (reset them to 0, does not create them)
5d12ce38 95 fHits= 0; CreateHits(); gAlice->GetMCApp()->AddHitList(fHits);
c60862bf 96 fSdigits= 0;
97 fDigitsNew= 0;
98 fClusters= 0;
c92eb8ad 99 fRecos =0;
dfb4e77d 100 if(GetDebug())Info("named ctor","Stop.");
101}//AliRICH::AliRICH(const char *name, const char *title)
c021cb15 102//__________________________________________________________________________________________________
fe4da5cc 103AliRICH::~AliRICH()
53fd478b 104{
105//dtor
dfb4e77d 106 if(GetDebug()) Info("dtor","Start.");
237c933d 107
c60862bf 108 if(fpParam) delete fpParam;
109 if(fChambers) delete fChambers;
110
111 if(fHits) delete fHits;
112 if(fSdigits) delete fSdigits;
113 if(fDigits) delete fDigits;
114 if(fDigitsNew) {fDigitsNew->Delete(); delete fDigitsNew;}
115 if(fClusters) {fClusters->Delete(); delete fClusters;}
c92eb8ad 116 if(fRecos) delete fRecos;
dfb4e77d 117 if(GetDebug()) Info("dtor","Stop.");
118}//AliRICH::~AliRICH()
c021cb15 119//__________________________________________________________________________________________________
3ea9cb08 120void AliRICH::Hits2SDigits()
53fd478b 121{
3582c1f9 122// Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
123//
3ea9cb08 124 if(GetDebug()) Info("Hit2SDigits","Start.");
3582c1f9 125 for(Int_t iEventN=0;iEventN<GetLoader()->GetRunLoader()->GetAliRun()->GetEventsPerRun();iEventN++){//events loop
126 GetLoader()->GetRunLoader()->GetEvent(iEventN);
127
128 if(!GetLoader()->TreeH()) GetLoader()->LoadHits(); GetLoader()->GetRunLoader()->LoadHeader();
129 GetLoader()->GetRunLoader()->LoadKinematics();//from
130 if(!GetLoader()->TreeS()) GetLoader()->MakeTree("S"); MakeBranch("S");//to
131
132 for(Int_t iPrimN=0;iPrimN<GetLoader()->TreeH()->GetEntries();iPrimN++){//prims loop
133 GetLoader()->TreeH()->GetEntry(iPrimN);
134 for(Int_t iHitN=0;iHitN<Hits()->GetEntries();iHitN++){//hits loop
135 AliRICHhit *pHit=(AliRICHhit*)Hits()->At(iHitN);
136 TVector2 x2 = Param()->ShiftToWirePos(C(pHit->C())->Glob2Loc(pHit->OutX3()));
137 Int_t iTotQdc=Param()->TotQdc(x2,pHit->Eloss());
09c52ebc 138 if(iTotQdc==0) continue;
3582c1f9 139 Int_t iPadXmin,iPadXmax,iPadYmin,iPadYmax;
140 Param()->Loc2Area(x2,iPadXmin,iPadYmin,iPadXmax,iPadYmax);//determine affected pads
141 if(GetDebug()) Info("Hits2SDigits","left-down=(%i,%i) right-up=(%i,%i)",iPadXmin,iPadYmin,iPadXmax,iPadYmax);
142 for(Int_t iPadY=iPadYmin;iPadY<=iPadYmax;iPadY++)//affected pads loop
143 for(Int_t iPadX=iPadXmin;iPadX<=iPadXmax;iPadX++){
144 Double_t padQdc=iTotQdc*Param()->FracQdc(x2,iPadX,iPadY);
145 if(padQdc>0.1) AddSDigit(pHit->C(),iPadX,iPadY,padQdc,
146 GetLoader()->GetRunLoader()->Stack()->Particle(pHit->GetTrack())->GetPdgCode(),pHit->GetTrack());
147 }//affected pads loop
148 }//hits loop
149 }//prims loop
150 GetLoader()->TreeS()->Fill();
151 GetLoader()->WriteSDigits("OVERWRITE");
2b8f978a 152 ResetSDigits();
3582c1f9 153 }//events loop
154 GetLoader()->UnloadHits(); GetLoader()->GetRunLoader()->UnloadHeader(); GetLoader()->GetRunLoader()->UnloadKinematics();
155 GetLoader()->UnloadSDigits();
853634d3 156 if(GetDebug()) Info("Hit2SDigits","Stop.");
3582c1f9 157}//Hits2SDigits()
c021cb15 158//__________________________________________________________________________________________________
dfb4e77d 159void AliRICH::BuildGeometry()
53fd478b 160{
161//Builds a TNode geometry for event display
dfb4e77d 162 if(GetDebug())Info("BuildGeometry","Start.");
237c933d 163
3ea9cb08 164 TNode *node, *subnode, *top;
165 top=gAlice->GetGeometry()->GetNode("alice");
c24372d0 166
3ea9cb08 167 new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15);
53d98323 168
c60862bf 169 Float_t wid=Param()->SectorSizeX();
170 Float_t len=Param()->SectorSizeY();
3ea9cb08 171 new TBRIK("PHOTO","PHOTO","void",wid/2,0.1,len/2);
172
c021cb15 173 for(int i=1;i<=kNCH;i++){
237c933d 174 top->cd();
c021cb15 175 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 176 node->SetLineColor(kRed);
91975aa2 177 node->cd();
c60862bf 178 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,"");
91975aa2 179 subnode->SetLineColor(kGreen);
180 fNodes->Add(subnode);
c60862bf 181 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,len/2+Param()->DeadZone()/2,"");
91975aa2 182 subnode->SetLineColor(kGreen);
183 fNodes->Add(subnode);
c60862bf 184 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,"");
91975aa2 185 subnode->SetLineColor(kGreen);
186 fNodes->Add(subnode);
c60862bf 187 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,-len/2-Param()->DeadZone()/2,"");
91975aa2 188 subnode->SetLineColor(kGreen);
189 fNodes->Add(subnode);
c60862bf 190 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,-len/2 -Param()->DeadZone()/2,"");
91975aa2 191 subnode->SetLineColor(kGreen);
192 fNodes->Add(subnode);
c60862bf 193 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,-len/2 - Param()->DeadZone()/2,"");
91975aa2 194 subnode->SetLineColor(kGreen);
195 fNodes->Add(subnode);
237c933d 196 fNodes->Add(node);
3ea9cb08 197 }
dfb4e77d 198 if(GetDebug())Info("BuildGeometry","Stop.");
199}//void AliRICH::BuildGeometry()
c60862bf 200
dfb4e77d 201//______________________________________________________________________________
452a64c6 202void AliRICH::CreateMaterials()
203{
204 //
205 // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
af3d25a6 206
207#include "Opticals.h"
208
c60862bf 209 Float_t a=0,z=0,den=0,radl=0,absl=0;
210 Float_t tmaxfd=-10.0, deemax=-0.2, stemax=-0.1,epsil=0.001, stmin=-0.001;
211 Int_t isxfld = gAlice->Field()->Integ();
212 Float_t sxmgmx = gAlice->Field()->Max();
452a64c6 213
c60862bf 214 AliMaterial( 1, "Air $",a=14.61,z=7.3, den=0.001205,radl=30420.0,absl=67500);//(Air)
215 AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
452a64c6 216
c60862bf 217 AliMaterial( 6, "HON", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //(C)-equivalent radl
218 AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
219
220 AliMaterial(16, "CSI", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //CsI-radl equivalent
221 AliMedium(kCSI, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
222
223 AliMaterial(11, "GRI", a=63.54,z=29.0,den=8.96, radl=1.43, absl=0); //anode grid (Cu)
af3d25a6 224 AliMedium(7, "GRID$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 225
226 AliMaterial(50, "ALUM", a=26.98,z=13.0,den=2.7, radl=8.9, absl=0); //aluminium sheet (Al)
227 AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
228
229 AliMaterial(31, "COPPER$", a=63.54,z=29.0,den=8.96, radl=1.4, absl=0); //(Cu)
230 AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
231
232 Float_t aQuartz[2]={28.09,16.0}; Float_t zQuartz[2]={14.00, 8.0}; Float_t wmatQuartz[2]={1,2};
233 AliMixture (20, "QUA",aQuartz,zQuartz,den=2.64,-2, wmatQuartz);//Quarz (SiO2) - trasnparent
af3d25a6 234 AliMedium(3, "QUARTZ$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 235
236 AliMixture (21, "QUAO",aQuartz, zQuartz, den=2.64, -2, wmatQuartz);//Quarz (SiO2) - opaque
af3d25a6 237 AliMedium(8, "QUARTZO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 238
239 Float_t aFreon[2]={12,19}; Float_t zFreon[2]={6,9}; Float_t wmatFreon[2]={6,14};
240 AliMixture (30, "FRE",aFreon,zFreon,den=1.7,-2,wmatFreon);//Freon (C6F14)
241 AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
242
243 Float_t aMethane[2]={12.01,1}; Float_t zMethane[2]={6,1}; Float_t wmatMethane[2]={1,4};
244 AliMixture (40, "MET", aMethane, zMethane, den=7.17e-4,-2, wmatMethane);//methane (CH4)
af3d25a6 245 AliMedium(5, "METHANE$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 246
247 AliMixture (41, "METG", aMethane, zMethane, den=7.17e-4, -2, wmatMethane);
248 AliMedium(kGAP, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, 0.1, -deemax, epsil, -stmin);
249
250 Float_t aGlass[5]={12.01, 28.09, 16., 10.8, 23.};
251 Float_t zGlass[5]={ 6., 14., 8., 5., 11.};
252 Float_t wGlass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
253 AliMixture (32, "GLASS",aGlass, zGlass, den=1.74, 5, wGlass);//Glass 50%C+10.5%Si+35.5%O+3% + 1%
254 AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
255
256 Int_t *idtmed = fIdtmed->GetArray()-999;
af3d25a6 257 gMC->SetCerenkov(idtmed[1000], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
258 gMC->SetCerenkov(idtmed[1001], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
259 gMC->SetCerenkov(idtmed[1002], kNbins, aPckov, aAbsSiO2, aQeAll, aIdxSiO2);
260 gMC->SetCerenkov(idtmed[1003], kNbins, aPckov, aAbsC6F14, aQeAll, aIdxC6F14);
261 gMC->SetCerenkov(idtmed[1004], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
262 gMC->SetCerenkov(idtmed[1005], kNbins, aPckov, aAbsCsI, aQeCsI, aIdxCH4);
263 gMC->SetCerenkov(idtmed[1006], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
264 gMC->SetCerenkov(idtmed[1007], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
265 gMC->SetCerenkov(idtmed[1008], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
266 gMC->SetCerenkov(idtmed[1009], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
267 gMC->SetCerenkov(idtmed[1010], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
268
c60862bf 269}//void AliRICH::CreateMaterials()
c021cb15 270//__________________________________________________________________________________________________
53fd478b 271Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const
452a64c6 272{
273
274 //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
275
276 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,
277 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,
278 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
452a64c6 279 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
280 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
281 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
282 1.72,1.53};
452a64c6 283 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
284 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
285 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
286 1.714,1.498};
287 Float_t xe=ene;
288 Int_t j=Int_t(xe*10)-49;
289 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
290 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
291
292 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
293 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
294
295 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
296 Float_t tanin=sinin/pdoti;
297
298 Float_t c1=cn*cn-ck*ck-sinin*sinin;
299 Float_t c2=4*cn*cn*ck*ck;
300 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
301 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
302
303 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
304 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
305
306
307 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
308 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
309
310 Float_t sigraf=18.;
311 Float_t lamb=1240/ene;
312 Float_t fresn;
313
314 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
315
316 if(pola)
317 {
318 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
319 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
320 }
321 else
322 fresn=0.5*(rp+rs);
323
324 fresn = fresn*rO;
325 return(fresn);
53fd478b 326}//Fresnel()
c021cb15 327//__________________________________________________________________________________________________
53fd478b 328Float_t AliRICH::AbsoCH4(Float_t x)const
329{
330//Evaluate the absorbtion lenght of CH4
cb8189e7 331 Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
cb8189e7 332 Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
3d130a45 333 const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3
334 const Float_t kPressure=750.,kTemperature=283.;
53fd478b 335 const Float_t kPn=kPressure/760.;
336 const Float_t kTn=kTemperature/273.16;
337 const Float_t kC0=-1.655279e-1;
338 const Float_t kC1=6.307392e-2;
339 const Float_t kC2=-8.011441e-3;
340 const Float_t kC3=3.392126e-4;
3d130a45 341
342 Float_t crossSection=0;
343 if (x<7.75)
344 crossSection=.06e-22;
345 else if(x>=7.75 && x<=8.1){ //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978)
53fd478b 346 crossSection=(kC0+kC1*x+kC2*x*x+kC3*x*x*x)*1.e-18;
3d130a45 347 }else if (x> 8.1){
348 Int_t j=0;
349 while (x<=em[j] || x>=em[j+1]){
350 j++;
351 Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
352 crossSection=(sch4[j]+a*(x-em[j]))*1e-22;
452a64c6 353 }
3d130a45 354 }//if
452a64c6 355
53fd478b 356 Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular density 1/cm-3
3d130a45 357 return 1./(density*crossSection);
cb8189e7 358}//AbsoCH4()
c021cb15 359//__________________________________________________________________________________________________
dfb4e77d 360void AliRICH::MakeBranch(Option_t* option)
53fd478b 361{
362//Create Tree branches for the RICH.
dfb4e77d 363 if(GetDebug())Info("MakeBranch","Start with option= %s.",option);
364
365 const Int_t kBufferSize = 4000;
dfb4e77d 366
dfb4e77d 367 const char *cH = strstr(option,"H");
368 const char *cD = strstr(option,"D");
369 const char *cR = strstr(option,"R");
370 const char *cS = strstr(option,"S");
371
c60862bf 372 if(cH&&TreeH()){//H
373 CreateHits(); //branch will be created in AliDetector::MakeBranch
c60862bf 374 }//H
dfb4e77d 375 AliDetector::MakeBranch(option);//this is after cH because we need to guarantee that fHits array is created
376
c60862bf 377 if(cS&&fLoader->TreeS()){//S
c1863e3c 378 CreateSDigits(); MakeBranchInTree(fLoader->TreeS(),"RICH",&fSdigits,kBufferSize,0) ;
c60862bf 379 }//S
dfb4e77d 380
c60862bf 381 if(cD&&fLoader->TreeD()){//D
543d5224 382 CreateDigits();
cb8189e7 383 for(Int_t i=0;i<kNCH;i++){
543d5224 384 MakeBranchInTree(fLoader->TreeD(),Form("%s%d",GetName(),i+1),&((*fDigitsNew)[i]),kBufferSize,0);
385 }
c60862bf 386 }//D
387
388 if(cR&&fLoader->TreeR()){//R
cb8189e7 389 CreateClusters();
aed240d4 390 for(Int_t i=0;i<kNCH;i++)
391 MakeBranchInTree(fLoader->TreeR(),Form("%sClusters%d",GetName(),i+1), &((*fClusters)[i]), kBufferSize, 0);
cb8189e7 392 }//R
dfb4e77d 393 if(GetDebug())Info("MakeBranch","Stop.");
c021cb15 394}//void AliRICH::MakeBranch(Option_t* option)
c60862bf 395//__________________________________________________________________________________________________
dfb4e77d 396void AliRICH::SetTreeAddress()
53fd478b 397{
398//Set branch address for the Hits and Digits Tree.
dfb4e77d 399 if(GetDebug())Info("SetTreeAddress","Start.");
c60862bf 400
dfb4e77d 401 TBranch *branch;
dfb4e77d 402
c60862bf 403 if(fLoader->TreeH()){//H
853634d3 404 if(GetDebug())Info("SetTreeAddress","tree H is requested.");
c60862bf 405 CreateHits();//branch map will be in AliDetector::SetTreeAddress
c60862bf 406 }//H
c021cb15 407 AliDetector::SetTreeAddress();//this is after TreeH because we need to guarantee that fHits array is created
408
c60862bf 409 if(fLoader->TreeS()){//S
853634d3 410 if(GetDebug())Info("SetTreeAddress","tree S is requested.");
c1863e3c 411 branch=fLoader->TreeS()->GetBranch(GetName()); if(branch){CreateSDigits(); branch->SetAddress(&fSdigits);}
c60862bf 412 }//S
dfb4e77d 413
c60862bf 414 if(fLoader->TreeD()){//D
853634d3 415 if(GetDebug())Info("SetTreeAddress","tree D is requested.");
c60862bf 416 for(int i=0;i<kNCH;i++){
417 branch=fLoader->TreeD()->GetBranch(Form("%s%d",GetName(),i+1));
418 if(branch){CreateDigits(); branch->SetAddress(&((*fDigitsNew)[i]));}
aed240d4 419 }
c60862bf 420 }//D
dfb4e77d 421
c60862bf 422 if(fLoader->TreeR()){//R
853634d3 423 if(GetDebug())Info("SetTreeAddress","tree R is requested.");
c60862bf 424 for(int i=0;i<kNCH;i++){
425 branch=fLoader->TreeR()->GetBranch(Form("%sClusters%d" ,GetName(),i+1));
cb8189e7 426 if(branch){CreateClusters(); branch->SetAddress(&((*fClusters)[i]));}
dfb4e77d 427 }
c60862bf 428 }//R
dfb4e77d 429 if(GetDebug())Info("SetTreeAddress","Stop.");
430}//void AliRICH::SetTreeAddress()
c021cb15 431//__________________________________________________________________________________________________
dfb4e77d 432void AliRICH::Print(Option_t *option)const
433{
53fd478b 434//Debug printout
dfb4e77d 435 TObject::Print(option);
c60862bf 436 Param()->Dump();
c021cb15 437 fChambers->Print(option);
dfb4e77d 438}//void AliRICH::Print(Option_t *option)const
c021cb15 439//__________________________________________________________________________________________________
3ea9cb08 440void AliRICH::CreateGeometry()
53fd478b 441{
442//Creates detailed geometry simulation (currently GEANT volumes tree)
3ea9cb08 443 if(GetDebug())Info("CreateGeometry","Start.");
3ea9cb08 444//Opaque quartz thickness
53fd478b 445 Float_t oquaThickness = .5;
3ea9cb08 446//CsI dimensions
c60862bf 447 Float_t pcX=Param()->PcSizeX();
448 Float_t pcY=Param()->PcSizeY();
3ea9cb08 449
450 Int_t *idtmed = fIdtmed->GetArray()-999;
451
452 Int_t i;
453 Float_t zs;
454 Int_t idrotm[1099];
455 Float_t par[3];
456
457//External aluminium box
ed3ceb24 458 par[0]=68.8;par[1]=13;par[2]=70.86; gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
3ea9cb08 459//Air
c60862bf 460 par[0]=66.3; par[1] = 13; par[2] = 68.35; gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
3ea9cb08 461//Air 2 (cutting the lower part of the box)
c60862bf 462 par[0]=1.25; par[1] = 3; par[2] = 70.86; gMC->Gsvolu("AIR2", "BOX ", idtmed[1000], par, 3);
3ea9cb08 463//Air 3 (cutting the lower part of the box)
c60862bf 464 par[0]=66.3; par[1] = 3; par[2] = 1.2505; gMC->Gsvolu("AIR3", "BOX ", idtmed[1000], par, 3);
3ea9cb08 465//Honeycomb
c60862bf 466 par[0]=66.3;par[1]=0.188; par[2] = 68.35; gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
3ea9cb08 467//Aluminium sheet
c60862bf 468 par[0]=66.3;par[1]=0.025;par[2]=68.35; gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
3ea9cb08 469 //par[0] = 66.5; par[1] = .025; par[2] = 63.1;
3ea9cb08 470//Quartz
c60862bf 471 par[0]=Param()->QuartzWidth()/2;par[1]=Param()->QuartzThickness()/2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 472 gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
473//Spacers (cylinders)
c60862bf 474 par[0]=0.;par[1]=.5;par[2]=Param()->FreonThickness()/2; gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
3ea9cb08 475//Feet (freon slabs supports)
c60862bf 476 par[0] = .7; par[1] = .3; par[2] = 1.9; gMC->Gsvolu("FOOT", "BOX", idtmed[1009], par, 3);
3ea9cb08 477//Opaque quartz
c60862bf 478 par[0]=Param()->QuartzWidth()/2;par[1]= .2;par[2]=Param()->QuartzLength()/2;
3ea9cb08 479 gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
480//Frame of opaque quartz
c60862bf 481 par[0]=Param()->OuterFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->OuterFreonLength()/2;
3ea9cb08 482 gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
c60862bf 483 par[0]=Param()->InnerFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->InnerFreonLength()/2;
3ea9cb08 484 gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
485//Freon
53fd478b 486 par[0]=Param()->OuterFreonWidth()/2 - oquaThickness;
c60862bf 487 par[1]=Param()->FreonThickness()/2;
53fd478b 488 par[2]=Param()->OuterFreonLength()/2 - 2*oquaThickness;
3ea9cb08 489 gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
490
53fd478b 491 par[0]=Param()->InnerFreonWidth()/2 - oquaThickness;
c60862bf 492 par[1]=Param()->FreonThickness()/2;
53fd478b 493 par[2]=Param()->InnerFreonLength()/2 - 2*oquaThickness;
3ea9cb08 494 gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
495//Methane
c60862bf 496 par[0]=pcX/2;par[1]=Param()->GapThickness()/2;par[2]=pcY/2; gMC->Gsvolu("META","BOX ",idtmed[1004], par, 3);
3ea9cb08 497//Methane gap
3582c1f9 498 par[0]=pcX/2;par[1]=Param()->ProximityGap()/2;par[2]=pcY/2;gMC->Gsvolu("GAP ","BOX ",(*fIdtmed)[kGAP],par,3);
c60862bf 499//CsI PC
500 par[0]=pcX/2;par[1]=.25;par[2]=pcY/2; gMC->Gsvolu("CSI ", "BOX ", (*fIdtmed)[kCSI], par, 3);
3ea9cb08 501//Anode grid
c60862bf 502 par[0] = 0.;par[1] = .001;par[2] = 20.; gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
3ea9cb08 503
504//Wire supports
505//Bar of metal
c60862bf 506 par[0]=pcX/2;par[1]=1.05;par[2]=1.05; gMC->Gsvolu("WSMe", "BOX ", idtmed[1009], par, 3);
3ea9cb08 507//Ceramic pick up (base)
c60862bf 508 par[0]=pcX/2;par[1]= .25;par[2]=1.05; gMC->Gsvolu("WSG1", "BOX ", idtmed[1010], par, 3);
3ea9cb08 509//Ceramic pick up (head)
c60862bf 510 par[0] = pcX/2;par[1] = .1;par[2] = .1; gMC->Gsvolu("WSG2", "BOX ", idtmed[1010], par, 3);
3ea9cb08 511
512//Aluminium supports for methane and CsI
513//Short bar
c60862bf 514 par[0]=pcX/2;par[1]=Param()->GapThickness()/2 + .25; par[2] = (68.35 - pcY/2)/2;
3ea9cb08 515 gMC->Gsvolu("SMSH", "BOX", idtmed[1009], par, 3);
516//Long bar
c60862bf 517 par[0]=(66.3 - pcX/2)/2;par[1]=Param()->GapThickness()/2+.25;par[2]=pcY/2+68.35-pcY/2;
3ea9cb08 518 gMC->Gsvolu("SMLG", "BOX", idtmed[1009], par, 3);
519
520//Aluminium supports for freon
521//Short bar
c60862bf 522 par[0] = Param()->QuartzWidth()/2; par[1] = .3; par[2] = (68.35 - Param()->QuartzLength()/2)/2;
3ea9cb08 523 gMC->Gsvolu("SFSH", "BOX", idtmed[1009], par, 3);
524//Long bar
c60862bf 525 par[0] = (66.3 - Param()->QuartzWidth()/2)/2; par[1] = .3;
526 par[2] = Param()->QuartzLength()/2 + 68.35 - Param()->QuartzLength()/2;
3ea9cb08 527 gMC->Gsvolu("SFLG", "BOX", idtmed[1009], par, 3);
528//PCB backplane
c60862bf 529 par[0] = pcX/2;par[1] = .25; par[2] = pcY/4 -.5025; gMC->Gsvolu("PCB ", "BOX", idtmed[1011], par, 3);
3ea9cb08 530
531//Backplane supports
532//Aluminium slab
c60862bf 533 par[0] = 33.15;par[1] = 2;par[2] = 21.65; gMC->Gsvolu("BACK", "BOX", idtmed[1009], par, 3);
3ea9cb08 534//Big hole
c60862bf 535 par[0] = 9.05; par[1] = 2; par[2] = 4.4625; gMC->Gsvolu("BKHL", "BOX", idtmed[1000], par, 3);
3ea9cb08 536//Small hole
c60862bf 537 par[0] = 5.7;par[1] = 2;par[2] = 4.4625; gMC->Gsvolu("BKHS", "BOX", idtmed[1000], par, 3);
3ea9cb08 538//Place holes inside backplane support
539 gMC->Gspos("BKHS", 1, "BACK", .8 + 5.7,0., .6 + 4.4625, 0, "ONLY");
540 gMC->Gspos("BKHS", 2, "BACK", -.8 - 5.7,0., .6 + 4.4625, 0, "ONLY");
541 gMC->Gspos("BKHS", 3, "BACK", .8 + 5.7,0., -.6 - 4.4625, 0, "ONLY");
542 gMC->Gspos("BKHS", 4, "BACK", -.8 - 5.7,0., -.6 - 4.4625, 0, "ONLY");
543 gMC->Gspos("BKHS", 5, "BACK", .8 + 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
544 gMC->Gspos("BKHS", 6, "BACK", -.8 - 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
545 gMC->Gspos("BKHS", 7, "BACK", .8 + 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
546 gMC->Gspos("BKHS", 8, "BACK", -.8 - 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
547 gMC->Gspos("BKHL", 1, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., .6 + 4.4625, 0, "ONLY");
548 gMC->Gspos("BKHL", 2, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 4.4625, 0, "ONLY");
549 gMC->Gspos("BKHL", 3, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 4.4625, 0, "ONLY");
550 gMC->Gspos("BKHL", 4, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 4.4625, 0, "ONLY");
551 gMC->Gspos("BKHL", 5, "BACK", .8 + 11.4+ 1.6 + 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
552 gMC->Gspos("BKHL", 6, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
553 gMC->Gspos("BKHL", 7, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
554 gMC->Gspos("BKHL", 8, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
555//Place material inside RICH
556 gMC->Gspos("SRIC", 1, "RICH", 0.,0., 0., 0, "ONLY");
c60862bf 557 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");
558 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");
559 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");
560 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");
561 gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.025, 0., 0, "ONLY");
562 gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .188, 0., 0, "ONLY");
563 gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .025, 0., 0, "ONLY");
564 gMC->Gspos("FOOT", 1, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
565 gMC->Gspos("FOOT", 2, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3 , 36.9, 0, "ONLY");
566 gMC->Gspos("FOOT", 3, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
567 gMC->Gspos("FOOT", 4, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
568 gMC->Gspos("FOOT", 5, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
569 gMC->Gspos("FOOT", 6, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
570 gMC->Gspos("FOOT", 7, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
571 gMC->Gspos("FOOT", 8, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
572 gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .2, 0., 0, "ONLY");
3ea9cb08 573// Methane supports
c60862bf 574 gMC->Gspos("SMLG", 1, "SRIC", pcX/2 + (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
575 gMC->Gspos("SMLG", 2, "SRIC", - pcX/2 - (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
576 gMC->Gspos("SMSH", 1, "SRIC", 0., 1.276 + .25, pcY/2 + (68.35 - pcY/2)/2, 0, "ONLY");
577 gMC->Gspos("SMSH", 2, "SRIC", 0., 1.276 + .25, - pcY/2 - (68.35 - pcY/2)/2, 0, "ONLY");
3ea9cb08 578//Freon supports
53fd478b 579 Float_t suppY = 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness() - .2 + .3; //y position of freon supports
580 gMC->Gspos("SFLG", 1, "SRIC", Param()->QuartzWidth()/2 + (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
581 gMC->Gspos("SFLG", 2, "SRIC", - Param()->QuartzWidth()/2 - (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
582 gMC->Gspos("SFSH", 1, "SRIC", 0., suppY, Param()->QuartzLength()/2 + (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
583 gMC->Gspos("SFSH", 2, "SRIC", 0., suppY, - Param()->QuartzLength()/2 - (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY");
3ea9cb08 584 AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
585//Place spacers
586 Int_t nspacers = 30;
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, "FRE1", 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, "FRE1", 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, "FRE1", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
598 }
599 for (i = 0; i < nspacers/3; i++) {
600 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
601 gMC->Gspos("SPAC", i, "FRE2", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
602 }
603 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
604 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
605 gMC->Gspos("SPAC", i, "FRE2", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
606 }
607 for (i = (nspacers*2)/3; i < nspacers; ++i) {
608 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
609 gMC->Gspos("SPAC", i, "FRE2", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
610 }
611 gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
612 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
c60862bf 613 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)
614 gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings
615 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)
616 gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness()/2, 0., 0, "ONLY");
3582c1f9 617 gMC->Gspos("GAP ", 1, "META", 0., Param()->GapThickness()/2 - Param()->ProximityGap()/2 - 0.0001, 0., 0, "ONLY");
3ea9cb08 618 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
c60862bf 619 gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + Param()->GapThickness()/2 + .25, 0., 0, "ONLY");
3ea9cb08 620//Wire support placing
3582c1f9 621 gMC->Gspos("WSG2", 1, "GAP ", 0., Param()->ProximityGap()/2 - .1, 0., 0, "ONLY");
3ea9cb08 622 gMC->Gspos("WSG1", 1, "CSI ", 0., 0., 0., 0, "ONLY");
c60862bf 623 gMC->Gspos("WSMe", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, 0., 0, "ONLY");
3ea9cb08 624//Backplane placing
c60862bf 625 gMC->Gspos("BACK", 1, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 43.3, 0, "ONLY");
626 gMC->Gspos("BACK", 2, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2 , 43.3, 0, "ONLY");
627 gMC->Gspos("BACK", 3, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
628 gMC->Gspos("BACK", 4, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
629 gMC->Gspos("BACK", 5, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
630 gMC->Gspos("BACK", 6, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
3ea9cb08 631//PCB placing
c60862bf 632 gMC->Gspos("PCB ", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, pcX/4 + .5025 + 2.5, 0, "ONLY");
633 gMC->Gspos("PCB ", 2, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, -pcX/4 - .5025 - 2.5, 0, "ONLY");
3ea9cb08 634
635//place chambers into mother volume ALIC
c021cb15 636 for(int i=1;i<=kNCH;i++){
3ea9cb08 637 AliMatrix(idrotm[1000+i],C(i)->ThetaXd(),C(i)->PhiXd(),
638 C(i)->ThetaYd(),C(i)->PhiYd(),
639 C(i)->ThetaZd(),C(i)->PhiZd());
c021cb15 640 gMC->Gspos("RICH",i,"ALIC",C(i)->X(),C(i)->Y(),C(i)->Z(),idrotm[1000+i], "ONLY");
3ea9cb08 641 }
642
643 if(GetDebug())Info("CreateGeometry","Stop.");
644}//void AliRICH::CreateGeometry()
c60862bf 645//__________________________________________________________________________________________________
3ea9cb08 646void AliRICH::CreateChambers()
53fd478b 647{
648//create all RICH Chambers on each call. Previous chambers deleted
543d5224 649 if(fChambers) delete fChambers;
c60862bf 650 if(GetDebug())Info("CreateChambers","Creating RICH chambers.");
3ea9cb08 651 fChambers=new TObjArray(kNCH);
652 fChambers->SetOwner();
c60862bf 653 for(int i=0;i<kNCH;i++) fChambers->AddAt(new AliRICHChamber(i+1,Param()),i);
3ea9cb08 654}//void AliRICH::CreateChambers()
c021cb15 655//__________________________________________________________________________________________________
c60862bf 656void AliRICH::GenerateFeedbacks(Int_t iChamber,Float_t eloss)
53fd478b 657{
3582c1f9 658// Generate FeedBack photons
659// eloss=0 means photon so only pulse height distribution is to be analysed. This one is done in AliRICHParam::TotQdc()
660
ed3ceb24 661 TLorentzVector x4;
662 gMC->TrackPosition(x4);
3582c1f9 663 TVector2 x2=C(iChamber)->Glob2Loc(x4);
84365c70 664 Int_t sector=Param()->Sector(x2); if(sector==kBad) return; //hit in dead zone nothing to produce
3582c1f9 665 Int_t iTotQdc=Param()->TotQdc(x2,eloss);
ed3ceb24 666 Int_t iNphotons=gMC->GetRandom()->Poisson(P()->AlphaFeedback(sector)*iTotQdc);
667 if(GetDebug())Info("GenerateFeedbacks","N photons=%i",iNphotons);
668 Int_t j;
669 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
c021cb15 670//Generate photons
3582c1f9 671 for(Int_t i=0;i<iNphotons;i++){//feedbacks loop
c021cb15 672 Double_t ranf[2];
673 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
674 cthf=ranf[0]*2-1.0;
675 if(cthf<0) continue;
676 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
677 phif = ranf[1] * 2 * TMath::Pi();
678
679 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
680 enfp = 7.5e-9;
681 else if(randomNumber<=0.7)
682 enfp = 6.4e-9;
683 else
684 enfp = 7.9e-9;
685
686
687 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
688 gMC->Gdtom(dir, mom, 2);
689 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
690 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
691
692 // Polarisation
693 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
694 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
695 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
696
697 vmod=0;
698 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
699 if (!vmod) for(j=0;j<3;j++) {
700 uswop=e1[j];
701 e1[j]=e3[j];
702 e3[j]=uswop;
703 }
704 vmod=0;
705 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
706 if (!vmod) for(j=0;j<3;j++) {
707 uswop=e2[j];
708 e2[j]=e3[j];
709 e3[j]=uswop;
710 }
711
ed3ceb24 712 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;
713 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 714
715 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
716 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
717 gMC->Gdtom(pol, pol, 2);
718 Int_t outputNtracksStored;
5d12ce38 719 gAlice->GetMCApp()->PushTrack(1, //do not transport
720 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
c021cb15 721 kFeedback, //PID
722 mom[0],mom[1],mom[2],mom[3], //track momentum
ed3ceb24 723 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
c021cb15 724 pol[0],pol[1],pol[2], //polarization
ed3ceb24 725 kPFeedBackPhoton,
726 outputNtracksStored,
727 1.0);
728 }//feedbacks loop
729}//GenerateFeedbacks()
c021cb15 730//__________________________________________________________________________________________________