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Possibility to run the clusterization from the AliReconstruction class (T.Kuhr)
[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"
89924db8 19#include "AliRICHClusterFinder.h"
2e5f0f7b 20#include <TArrayF.h>
543d5224 21#include <TGeometry.h>
116cbefd 22#include <TBRIK.h>
543d5224 23#include <TTUBE.h>
237c933d 24#include <TFile.h>
116cbefd 25#include <TNode.h>
26#include <TObjArray.h>
3582c1f9 27#include <TParticle.h>
28#include <AliStack.h>
c60862bf 29#include <AliMagF.h>
c60862bf 30#include <AliRun.h>
31#include <AliRunDigitizer.h>
53fd478b 32#include <AliMC.h>
5d12ce38 33#include <TVirtualMC.h>
ddae0931 34
853634d3 35ClassImp(AliRICHhit)
c60862bf 36//__________________________________________________________________________________________________
37void AliRICHhit::Print(Option_t*)const
38{
3582c1f9 39 ::Info("hit","Ch=%1i, TID=%6i, eloss=%9.3f eV, in-out dist=%9.4f, OUT(%7.2f,%7.2f,%7.2f)"
40 ,fChamber,fTrack,fEloss*1e9,Length(),fOutX3.X(),fOutX3.Y(),fOutX3.Z());
c1863e3c 41}
c60862bf 42//__________________________________________________________________________________________________
853634d3 43ClassImp(AliRICHdigit)
c60862bf 44//__________________________________________________________________________________________________
45void AliRICHdigit::Print(Option_t*)const
46{
3582c1f9 47 ::Info("digit","csxy=%6i, cfm=%9i, c=%2i, x=%3i, y=%3i, q=%8.3f, TID1=%5i, TID2=%5i, TID3=%5i",
d4c94996 48 Id(),fChFbMip,fChamber,fPadX,fPadY,fQdc,fTracks[0],fTracks[1],fTracks[2]);
c1863e3c 49}
50//__________________________________________________________________________________________________
51ClassImp(AliRICHcluster)
52//__________________________________________________________________________________________________
53void AliRICHcluster::Print(Option_t*)const
54{
6865fb8d 55 ::Info("cluster","CombiPid=%10i, c=%2i, size=%6i, dim=%5i, x=%7.3f, y=%7.3f, Q=%6i, st=%i",
ed3ceb24 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;
c92eb8ad 85 fRecos =0; fNrecos =0;
15d8311d 86}//AliRICH::AliRICH()
c021cb15 87//__________________________________________________________________________________________________
fe4da5cc 88AliRICH::AliRICH(const char *name, const char *title)
dfb4e77d 89 :AliDetector(name,title)
53fd478b 90{
91//Named ctor
dfb4e77d 92 if(GetDebug())Info("named ctor","Start.");
c60862bf 93 fpParam = new AliRICHParam;
94 fChambers = 0; CreateChambers();
543d5224 95//AliDetector ctor deals with Hits and Digits (reset them to 0, does not create them)
5d12ce38 96 fHits= 0; CreateHits(); gAlice->GetMCApp()->AddHitList(fHits);
c60862bf 97 fSdigits= 0;
98 fDigitsNew= 0;
99 fClusters= 0;
c92eb8ad 100 fRecos =0;
dfb4e77d 101 if(GetDebug())Info("named ctor","Stop.");
102}//AliRICH::AliRICH(const char *name, const char *title)
c021cb15 103//__________________________________________________________________________________________________
fe4da5cc 104AliRICH::~AliRICH()
53fd478b 105{
106//dtor
dfb4e77d 107 if(GetDebug()) Info("dtor","Start.");
237c933d 108
c60862bf 109 if(fpParam) delete fpParam;
110 if(fChambers) delete fChambers;
111
112 if(fHits) delete fHits;
113 if(fSdigits) delete fSdigits;
114 if(fDigits) delete fDigits;
115 if(fDigitsNew) {fDigitsNew->Delete(); delete fDigitsNew;}
116 if(fClusters) {fClusters->Delete(); delete fClusters;}
c92eb8ad 117 if(fRecos) delete fRecos;
dfb4e77d 118 if(GetDebug()) Info("dtor","Stop.");
119}//AliRICH::~AliRICH()
c021cb15 120//__________________________________________________________________________________________________
3ea9cb08 121void AliRICH::Hits2SDigits()
53fd478b 122{
3582c1f9 123// Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
124//
3ea9cb08 125 if(GetDebug()) Info("Hit2SDigits","Start.");
3582c1f9 126 for(Int_t iEventN=0;iEventN<GetLoader()->GetRunLoader()->GetAliRun()->GetEventsPerRun();iEventN++){//events loop
127 GetLoader()->GetRunLoader()->GetEvent(iEventN);
128
129 if(!GetLoader()->TreeH()) GetLoader()->LoadHits(); GetLoader()->GetRunLoader()->LoadHeader();
130 GetLoader()->GetRunLoader()->LoadKinematics();//from
131 if(!GetLoader()->TreeS()) GetLoader()->MakeTree("S"); MakeBranch("S");//to
132
133 for(Int_t iPrimN=0;iPrimN<GetLoader()->TreeH()->GetEntries();iPrimN++){//prims loop
134 GetLoader()->TreeH()->GetEntry(iPrimN);
135 for(Int_t iHitN=0;iHitN<Hits()->GetEntries();iHitN++){//hits loop
136 AliRICHhit *pHit=(AliRICHhit*)Hits()->At(iHitN);
d4c94996 137 TVector2 x2 = P()->ShiftToWirePos(C(pHit->C())->Glob2Loc(pHit->OutX3()));
138 Int_t iTotQdc=P()->TotQdc(x2,pHit->Eloss());
09c52ebc 139 if(iTotQdc==0) continue;
3582c1f9 140 Int_t iPadXmin,iPadXmax,iPadYmin,iPadYmax;
d4c94996 141 P()->Loc2Area(x2,iPadXmin,iPadYmin,iPadXmax,iPadYmax);//determine affected pads
3582c1f9 142 if(GetDebug()) Info("Hits2SDigits","left-down=(%i,%i) right-up=(%i,%i)",iPadXmin,iPadYmin,iPadXmax,iPadYmax);
143 for(Int_t iPadY=iPadYmin;iPadY<=iPadYmax;iPadY++)//affected pads loop
144 for(Int_t iPadX=iPadXmin;iPadX<=iPadXmax;iPadX++){
d4c94996 145 Double_t padQdc=iTotQdc*P()->FracQdc(x2,iPadX,iPadY);
3582c1f9 146 if(padQdc>0.1) AddSDigit(pHit->C(),iPadX,iPadY,padQdc,
147 GetLoader()->GetRunLoader()->Stack()->Particle(pHit->GetTrack())->GetPdgCode(),pHit->GetTrack());
148 }//affected pads loop
149 }//hits loop
150 }//prims loop
151 GetLoader()->TreeS()->Fill();
152 GetLoader()->WriteSDigits("OVERWRITE");
2b8f978a 153 ResetSDigits();
3582c1f9 154 }//events loop
155 GetLoader()->UnloadHits(); GetLoader()->GetRunLoader()->UnloadHeader(); GetLoader()->GetRunLoader()->UnloadKinematics();
156 GetLoader()->UnloadSDigits();
853634d3 157 if(GetDebug()) Info("Hit2SDigits","Stop.");
3582c1f9 158}//Hits2SDigits()
c021cb15 159//__________________________________________________________________________________________________
dfb4e77d 160void AliRICH::BuildGeometry()
53fd478b 161{
162//Builds a TNode geometry for event display
dfb4e77d 163 if(GetDebug())Info("BuildGeometry","Start.");
237c933d 164
3ea9cb08 165 TNode *node, *subnode, *top;
166 top=gAlice->GetGeometry()->GetNode("alice");
c24372d0 167
3ea9cb08 168 new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15);
53d98323 169
d4c94996 170 Float_t wid=P()->SectorSizeX();
171 Float_t len=P()->SectorSizeY();
3ea9cb08 172 new TBRIK("PHOTO","PHOTO","void",wid/2,0.1,len/2);
173
c021cb15 174 for(int i=1;i<=kNCH;i++){
237c933d 175 top->cd();
c021cb15 176 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 177 node->SetLineColor(kRed);
91975aa2 178 node->cd();
d4c94996 179 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+P()->DeadZone(),5,len/2+P()->DeadZone()/2,"");
91975aa2 180 subnode->SetLineColor(kGreen);
181 fNodes->Add(subnode);
d4c94996 182 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,len/2+P()->DeadZone()/2,"");
91975aa2 183 subnode->SetLineColor(kGreen);
184 fNodes->Add(subnode);
d4c94996 185 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-P()->DeadZone(),5,len/2+P()->DeadZone()/2,"");
91975aa2 186 subnode->SetLineColor(kGreen);
187 fNodes->Add(subnode);
d4c94996 188 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+P()->DeadZone(),5,-len/2-P()->DeadZone()/2,"");
91975aa2 189 subnode->SetLineColor(kGreen);
190 fNodes->Add(subnode);
d4c94996 191 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,-len/2 -P()->DeadZone()/2,"");
91975aa2 192 subnode->SetLineColor(kGreen);
193 fNodes->Add(subnode);
d4c94996 194 subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-P()->DeadZone(),5,-len/2 - P()->DeadZone()/2,"");
91975aa2 195 subnode->SetLineColor(kGreen);
196 fNodes->Add(subnode);
237c933d 197 fNodes->Add(node);
3ea9cb08 198 }
dfb4e77d 199 if(GetDebug())Info("BuildGeometry","Stop.");
200}//void AliRICH::BuildGeometry()
c60862bf 201
dfb4e77d 202//______________________________________________________________________________
452a64c6 203void AliRICH::CreateMaterials()
204{
205 //
206 // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
af3d25a6 207
208#include "Opticals.h"
209
c60862bf 210 Float_t a=0,z=0,den=0,radl=0,absl=0;
211 Float_t tmaxfd=-10.0, deemax=-0.2, stemax=-0.1,epsil=0.001, stmin=-0.001;
212 Int_t isxfld = gAlice->Field()->Integ();
213 Float_t sxmgmx = gAlice->Field()->Max();
452a64c6 214
c60862bf 215 AliMaterial( 1, "Air $",a=14.61,z=7.3, den=0.001205,radl=30420.0,absl=67500);//(Air)
216 AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
452a64c6 217
c60862bf 218 AliMaterial( 6, "HON", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //(C)-equivalent radl
219 AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
220
221 AliMaterial(16, "CSI", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //CsI-radl equivalent
222 AliMedium(kCSI, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
223
224 AliMaterial(11, "GRI", a=63.54,z=29.0,den=8.96, radl=1.43, absl=0); //anode grid (Cu)
af3d25a6 225 AliMedium(7, "GRID$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 226
227 AliMaterial(50, "ALUM", a=26.98,z=13.0,den=2.7, radl=8.9, absl=0); //aluminium sheet (Al)
228 AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
229
230 AliMaterial(31, "COPPER$", a=63.54,z=29.0,den=8.96, radl=1.4, absl=0); //(Cu)
231 AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
232
233 Float_t aQuartz[2]={28.09,16.0}; Float_t zQuartz[2]={14.00, 8.0}; Float_t wmatQuartz[2]={1,2};
234 AliMixture (20, "QUA",aQuartz,zQuartz,den=2.64,-2, wmatQuartz);//Quarz (SiO2) - trasnparent
af3d25a6 235 AliMedium(3, "QUARTZ$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 236
237 AliMixture (21, "QUAO",aQuartz, zQuartz, den=2.64, -2, wmatQuartz);//Quarz (SiO2) - opaque
af3d25a6 238 AliMedium(8, "QUARTZO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 239
240 Float_t aFreon[2]={12,19}; Float_t zFreon[2]={6,9}; Float_t wmatFreon[2]={6,14};
241 AliMixture (30, "FRE",aFreon,zFreon,den=1.7,-2,wmatFreon);//Freon (C6F14)
242 AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
243
244 Float_t aMethane[2]={12.01,1}; Float_t zMethane[2]={6,1}; Float_t wmatMethane[2]={1,4};
245 AliMixture (40, "MET", aMethane, zMethane, den=7.17e-4,-2, wmatMethane);//methane (CH4)
af3d25a6 246 AliMedium(5, "METHANE$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
c60862bf 247
248 AliMixture (41, "METG", aMethane, zMethane, den=7.17e-4, -2, wmatMethane);
249 AliMedium(kGAP, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, 0.1, -deemax, epsil, -stmin);
250
251 Float_t aGlass[5]={12.01, 28.09, 16., 10.8, 23.};
252 Float_t zGlass[5]={ 6., 14., 8., 5., 11.};
253 Float_t wGlass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
254 AliMixture (32, "GLASS",aGlass, zGlass, den=1.74, 5, wGlass);//Glass 50%C+10.5%Si+35.5%O+3% + 1%
255 AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
256
257 Int_t *idtmed = fIdtmed->GetArray()-999;
af3d25a6 258 gMC->SetCerenkov(idtmed[1000], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
259 gMC->SetCerenkov(idtmed[1001], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
260 gMC->SetCerenkov(idtmed[1002], kNbins, aPckov, aAbsSiO2, aQeAll, aIdxSiO2);
261 gMC->SetCerenkov(idtmed[1003], kNbins, aPckov, aAbsC6F14, aQeAll, aIdxC6F14);
262 gMC->SetCerenkov(idtmed[1004], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
263 gMC->SetCerenkov(idtmed[1005], kNbins, aPckov, aAbsCsI, aQeCsI, aIdxCH4);
264 gMC->SetCerenkov(idtmed[1006], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
265 gMC->SetCerenkov(idtmed[1007], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
266 gMC->SetCerenkov(idtmed[1008], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4);
267 gMC->SetCerenkov(idtmed[1009], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid);
268 gMC->SetCerenkov(idtmed[1010], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2);
269
c60862bf 270}//void AliRICH::CreateMaterials()
c021cb15 271//__________________________________________________________________________________________________
53fd478b 272Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const
452a64c6 273{
274
275 //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
276
277 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,
278 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,
279 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
452a64c6 280 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
281 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
282 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
283 1.72,1.53};
452a64c6 284 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
285 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
286 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
287 1.714,1.498};
288 Float_t xe=ene;
289 Int_t j=Int_t(xe*10)-49;
290 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
291 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
292
293 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
294 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
295
296 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
297 Float_t tanin=sinin/pdoti;
298
299 Float_t c1=cn*cn-ck*ck-sinin*sinin;
300 Float_t c2=4*cn*cn*ck*ck;
301 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
302 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
303
304 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
305 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
306
307
308 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
309 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
310
311 Float_t sigraf=18.;
312 Float_t lamb=1240/ene;
313 Float_t fresn;
314
315 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
316
317 if(pola)
318 {
319 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
320 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
321 }
322 else
323 fresn=0.5*(rp+rs);
324
325 fresn = fresn*rO;
326 return(fresn);
53fd478b 327}//Fresnel()
c021cb15 328//__________________________________________________________________________________________________
53fd478b 329Float_t AliRICH::AbsoCH4(Float_t x)const
330{
331//Evaluate the absorbtion lenght of CH4
cb8189e7 332 Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
cb8189e7 333 Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
3d130a45 334 const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3
335 const Float_t kPressure=750.,kTemperature=283.;
53fd478b 336 const Float_t kPn=kPressure/760.;
337 const Float_t kTn=kTemperature/273.16;
338 const Float_t kC0=-1.655279e-1;
339 const Float_t kC1=6.307392e-2;
340 const Float_t kC2=-8.011441e-3;
341 const Float_t kC3=3.392126e-4;
3d130a45 342
343 Float_t crossSection=0;
344 if (x<7.75)
345 crossSection=.06e-22;
346 else if(x>=7.75 && x<=8.1){ //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978)
53fd478b 347 crossSection=(kC0+kC1*x+kC2*x*x+kC3*x*x*x)*1.e-18;
3d130a45 348 }else if (x> 8.1){
349 Int_t j=0;
350 while (x<=em[j] || x>=em[j+1]){
351 j++;
352 Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
353 crossSection=(sch4[j]+a*(x-em[j]))*1e-22;
452a64c6 354 }
3d130a45 355 }//if
452a64c6 356
53fd478b 357 Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular density 1/cm-3
3d130a45 358 return 1./(density*crossSection);
cb8189e7 359}//AbsoCH4()
c021cb15 360//__________________________________________________________________________________________________
dfb4e77d 361void AliRICH::MakeBranch(Option_t* option)
53fd478b 362{
363//Create Tree branches for the RICH.
dfb4e77d 364 if(GetDebug())Info("MakeBranch","Start with option= %s.",option);
365
366 const Int_t kBufferSize = 4000;
dfb4e77d 367
dfb4e77d 368 const char *cH = strstr(option,"H");
369 const char *cD = strstr(option,"D");
370 const char *cR = strstr(option,"R");
371 const char *cS = strstr(option,"S");
372
c60862bf 373 if(cH&&TreeH()){//H
374 CreateHits(); //branch will be created in AliDetector::MakeBranch
c60862bf 375 }//H
dfb4e77d 376 AliDetector::MakeBranch(option);//this is after cH because we need to guarantee that fHits array is created
377
c60862bf 378 if(cS&&fLoader->TreeS()){//S
c1863e3c 379 CreateSDigits(); MakeBranchInTree(fLoader->TreeS(),"RICH",&fSdigits,kBufferSize,0) ;
c60862bf 380 }//S
dfb4e77d 381
c60862bf 382 if(cD&&fLoader->TreeD()){//D
543d5224 383 CreateDigits();
cb8189e7 384 for(Int_t i=0;i<kNCH;i++){
543d5224 385 MakeBranchInTree(fLoader->TreeD(),Form("%s%d",GetName(),i+1),&((*fDigitsNew)[i]),kBufferSize,0);
386 }
c60862bf 387 }//D
388
389 if(cR&&fLoader->TreeR()){//R
cb8189e7 390 CreateClusters();
aed240d4 391 for(Int_t i=0;i<kNCH;i++)
392 MakeBranchInTree(fLoader->TreeR(),Form("%sClusters%d",GetName(),i+1), &((*fClusters)[i]), kBufferSize, 0);
cb8189e7 393 }//R
dfb4e77d 394 if(GetDebug())Info("MakeBranch","Stop.");
c021cb15 395}//void AliRICH::MakeBranch(Option_t* option)
c60862bf 396//__________________________________________________________________________________________________
dfb4e77d 397void AliRICH::SetTreeAddress()
53fd478b 398{
399//Set branch address for the Hits and Digits Tree.
dfb4e77d 400 if(GetDebug())Info("SetTreeAddress","Start.");
c60862bf 401
dfb4e77d 402 TBranch *branch;
dfb4e77d 403
c60862bf 404 if(fLoader->TreeH()){//H
853634d3 405 if(GetDebug())Info("SetTreeAddress","tree H is requested.");
c60862bf 406 CreateHits();//branch map will be in AliDetector::SetTreeAddress
c60862bf 407 }//H
c021cb15 408 AliDetector::SetTreeAddress();//this is after TreeH because we need to guarantee that fHits array is created
409
c60862bf 410 if(fLoader->TreeS()){//S
853634d3 411 if(GetDebug())Info("SetTreeAddress","tree S is requested.");
c1863e3c 412 branch=fLoader->TreeS()->GetBranch(GetName()); if(branch){CreateSDigits(); branch->SetAddress(&fSdigits);}
c60862bf 413 }//S
dfb4e77d 414
c60862bf 415 if(fLoader->TreeD()){//D
853634d3 416 if(GetDebug())Info("SetTreeAddress","tree D is requested.");
c60862bf 417 for(int i=0;i<kNCH;i++){
418 branch=fLoader->TreeD()->GetBranch(Form("%s%d",GetName(),i+1));
419 if(branch){CreateDigits(); branch->SetAddress(&((*fDigitsNew)[i]));}
aed240d4 420 }
c60862bf 421 }//D
dfb4e77d 422
c60862bf 423 if(fLoader->TreeR()){//R
853634d3 424 if(GetDebug())Info("SetTreeAddress","tree R is requested.");
c60862bf 425 for(int i=0;i<kNCH;i++){
426 branch=fLoader->TreeR()->GetBranch(Form("%sClusters%d" ,GetName(),i+1));
cb8189e7 427 if(branch){CreateClusters(); branch->SetAddress(&((*fClusters)[i]));}
dfb4e77d 428 }
c60862bf 429 }//R
dfb4e77d 430 if(GetDebug())Info("SetTreeAddress","Stop.");
431}//void AliRICH::SetTreeAddress()
c021cb15 432//__________________________________________________________________________________________________
dfb4e77d 433void AliRICH::Print(Option_t *option)const
434{
53fd478b 435//Debug printout
dfb4e77d 436 TObject::Print(option);
d4c94996 437 P()->Dump();
c021cb15 438 fChambers->Print(option);
dfb4e77d 439}//void AliRICH::Print(Option_t *option)const
c021cb15 440//__________________________________________________________________________________________________
3ea9cb08 441void AliRICH::CreateGeometry()
53fd478b 442{
443//Creates detailed geometry simulation (currently GEANT volumes tree)
3ea9cb08 444 if(GetDebug())Info("CreateGeometry","Start.");
3ea9cb08 445//Opaque quartz thickness
53fd478b 446 Float_t oquaThickness = .5;
3ea9cb08 447//CsI dimensions
d4c94996 448 Float_t pcX=P()->PcSizeX();
449 Float_t pcY=P()->PcSizeY();
3ea9cb08 450
451 Int_t *idtmed = fIdtmed->GetArray()-999;
452
453 Int_t i;
454 Float_t zs;
455 Int_t idrotm[1099];
456 Float_t par[3];
457
458//External aluminium box
ed3ceb24 459 par[0]=68.8;par[1]=13;par[2]=70.86; gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
3ea9cb08 460//Air
c60862bf 461 par[0]=66.3; par[1] = 13; par[2] = 68.35; gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
3ea9cb08 462//Air 2 (cutting the lower part of the box)
c60862bf 463 par[0]=1.25; par[1] = 3; par[2] = 70.86; gMC->Gsvolu("AIR2", "BOX ", idtmed[1000], par, 3);
3ea9cb08 464//Air 3 (cutting the lower part of the box)
c60862bf 465 par[0]=66.3; par[1] = 3; par[2] = 1.2505; gMC->Gsvolu("AIR3", "BOX ", idtmed[1000], par, 3);
3ea9cb08 466//Honeycomb
c60862bf 467 par[0]=66.3;par[1]=0.188; par[2] = 68.35; gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
3ea9cb08 468//Aluminium sheet
c60862bf 469 par[0]=66.3;par[1]=0.025;par[2]=68.35; gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
3ea9cb08 470 //par[0] = 66.5; par[1] = .025; par[2] = 63.1;
3ea9cb08 471//Quartz
d4c94996 472 par[0]=P()->QuartzWidth()/2;par[1]=P()->QuartzThickness()/2;par[2]=P()->QuartzLength()/2;
3ea9cb08 473 gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
474//Spacers (cylinders)
d4c94996 475 par[0]=0.;par[1]=.5;par[2]=P()->FreonThickness()/2; gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
3ea9cb08 476//Feet (freon slabs supports)
c60862bf 477 par[0] = .7; par[1] = .3; par[2] = 1.9; gMC->Gsvolu("FOOT", "BOX", idtmed[1009], par, 3);
3ea9cb08 478//Opaque quartz
d4c94996 479 par[0]=P()->QuartzWidth()/2;par[1]= .2;par[2]=P()->QuartzLength()/2;
3ea9cb08 480 gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
481//Frame of opaque quartz
d4c94996 482 par[0]=P()->OuterFreonWidth()/2;par[1]=P()->FreonThickness()/2;par[2]=P()->OuterFreonLength()/2;
3ea9cb08 483 gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
d4c94996 484 par[0]=P()->InnerFreonWidth()/2;par[1]=P()->FreonThickness()/2;par[2]=P()->InnerFreonLength()/2;
3ea9cb08 485 gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
486//Freon
d4c94996 487 par[0]=P()->OuterFreonWidth()/2 - oquaThickness;
488 par[1]=P()->FreonThickness()/2;
489 par[2]=P()->OuterFreonLength()/2 - 2*oquaThickness;
3ea9cb08 490 gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
491
d4c94996 492 par[0]=P()->InnerFreonWidth()/2 - oquaThickness;
493 par[1]=P()->FreonThickness()/2;
494 par[2]=P()->InnerFreonLength()/2 - 2*oquaThickness;
3ea9cb08 495 gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
496//Methane
d4c94996 497 par[0]=pcX/2;par[1]=P()->GapThickness()/2;par[2]=pcY/2; gMC->Gsvolu("META","BOX ",idtmed[1004], par, 3);
3ea9cb08 498//Methane gap
d4c94996 499 par[0]=pcX/2;par[1]=P()->ProximityGap()/2;par[2]=pcY/2;gMC->Gsvolu("GAP ","BOX ",(*fIdtmed)[kGAP],par,3);
c60862bf 500//CsI PC
501 par[0]=pcX/2;par[1]=.25;par[2]=pcY/2; gMC->Gsvolu("CSI ", "BOX ", (*fIdtmed)[kCSI], par, 3);
3ea9cb08 502//Anode grid
c60862bf 503 par[0] = 0.;par[1] = .001;par[2] = 20.; gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
3ea9cb08 504
505//Wire supports
506//Bar of metal
c60862bf 507 par[0]=pcX/2;par[1]=1.05;par[2]=1.05; gMC->Gsvolu("WSMe", "BOX ", idtmed[1009], par, 3);
3ea9cb08 508//Ceramic pick up (base)
c60862bf 509 par[0]=pcX/2;par[1]= .25;par[2]=1.05; gMC->Gsvolu("WSG1", "BOX ", idtmed[1010], par, 3);
3ea9cb08 510//Ceramic pick up (head)
c60862bf 511 par[0] = pcX/2;par[1] = .1;par[2] = .1; gMC->Gsvolu("WSG2", "BOX ", idtmed[1010], par, 3);
3ea9cb08 512
513//Aluminium supports for methane and CsI
514//Short bar
d4c94996 515 par[0]=pcX/2;par[1]=P()->GapThickness()/2 + .25; par[2] = (68.35 - pcY/2)/2;
3ea9cb08 516 gMC->Gsvolu("SMSH", "BOX", idtmed[1009], par, 3);
517//Long bar
d4c94996 518 par[0]=(66.3 - pcX/2)/2;par[1]=P()->GapThickness()/2+.25;par[2]=pcY/2+68.35-pcY/2;
3ea9cb08 519 gMC->Gsvolu("SMLG", "BOX", idtmed[1009], par, 3);
520
521//Aluminium supports for freon
522//Short bar
d4c94996 523 par[0] = P()->QuartzWidth()/2; par[1] = .3; par[2] = (68.35 - P()->QuartzLength()/2)/2;
3ea9cb08 524 gMC->Gsvolu("SFSH", "BOX", idtmed[1009], par, 3);
525//Long bar
d4c94996 526 par[0] = (66.3 - P()->QuartzWidth()/2)/2; par[1] = .3;
527 par[2] = P()->QuartzLength()/2 + 68.35 - P()->QuartzLength()/2;
3ea9cb08 528 gMC->Gsvolu("SFLG", "BOX", idtmed[1009], par, 3);
529//PCB backplane
c60862bf 530 par[0] = pcX/2;par[1] = .25; par[2] = pcY/4 -.5025; gMC->Gsvolu("PCB ", "BOX", idtmed[1011], par, 3);
3ea9cb08 531
532//Backplane supports
533//Aluminium slab
c60862bf 534 par[0] = 33.15;par[1] = 2;par[2] = 21.65; gMC->Gsvolu("BACK", "BOX", idtmed[1009], par, 3);
3ea9cb08 535//Big hole
c60862bf 536 par[0] = 9.05; par[1] = 2; par[2] = 4.4625; gMC->Gsvolu("BKHL", "BOX", idtmed[1000], par, 3);
3ea9cb08 537//Small hole
c60862bf 538 par[0] = 5.7;par[1] = 2;par[2] = 4.4625; gMC->Gsvolu("BKHS", "BOX", idtmed[1000], par, 3);
3ea9cb08 539//Place holes inside backplane support
540 gMC->Gspos("BKHS", 1, "BACK", .8 + 5.7,0., .6 + 4.4625, 0, "ONLY");
541 gMC->Gspos("BKHS", 2, "BACK", -.8 - 5.7,0., .6 + 4.4625, 0, "ONLY");
542 gMC->Gspos("BKHS", 3, "BACK", .8 + 5.7,0., -.6 - 4.4625, 0, "ONLY");
543 gMC->Gspos("BKHS", 4, "BACK", -.8 - 5.7,0., -.6 - 4.4625, 0, "ONLY");
544 gMC->Gspos("BKHS", 5, "BACK", .8 + 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
545 gMC->Gspos("BKHS", 6, "BACK", -.8 - 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
546 gMC->Gspos("BKHS", 7, "BACK", .8 + 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
547 gMC->Gspos("BKHS", 8, "BACK", -.8 - 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
548 gMC->Gspos("BKHL", 1, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., .6 + 4.4625, 0, "ONLY");
549 gMC->Gspos("BKHL", 2, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 4.4625, 0, "ONLY");
550 gMC->Gspos("BKHL", 3, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 4.4625, 0, "ONLY");
551 gMC->Gspos("BKHL", 4, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 4.4625, 0, "ONLY");
552 gMC->Gspos("BKHL", 5, "BACK", .8 + 11.4+ 1.6 + 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
553 gMC->Gspos("BKHL", 6, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY");
554 gMC->Gspos("BKHL", 7, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
555 gMC->Gspos("BKHL", 8, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY");
556//Place material inside RICH
557 gMC->Gspos("SRIC", 1, "RICH", 0.,0., 0., 0, "ONLY");
d4c94996 558 gMC->Gspos("AIR2", 1, "RICH", 66.3 + 1.2505, 1.276-P()->GapThickness()/2-P()->QuartzThickness()-P()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY");
559 gMC->Gspos("AIR2", 2, "RICH", -66.3 - 1.2505,1.276-P()->GapThickness()/2-P()->QuartzThickness()-P()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY");
560 gMC->Gspos("AIR3", 1, "RICH", 0., 1.276-P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, -68.35 - 1.25, 0, "ONLY");
561 gMC->Gspos("AIR3", 2, "RICH", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 68.35 + 1.25, 0, "ONLY");
562 gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .6 - .05 - .376 -.025, 0., 0, "ONLY");
563 gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .6 - .05 - .188, 0., 0, "ONLY");
564 gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .6 - .025, 0., 0, "ONLY");
565 gMC->Gspos("FOOT", 1, "SRIC", 64.95, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
566 gMC->Gspos("FOOT", 2, "SRIC", 21.65, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3 , 36.9, 0, "ONLY");
567 gMC->Gspos("FOOT", 3, "SRIC", -21.65, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
568 gMC->Gspos("FOOT", 4, "SRIC", -64.95, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY");
569 gMC->Gspos("FOOT", 5, "SRIC", 64.95, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
570 gMC->Gspos("FOOT", 6, "SRIC", 21.65, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
571 gMC->Gspos("FOOT", 7, "SRIC", -21.65, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
572 gMC->Gspos("FOOT", 8, "SRIC", -64.95, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY");
573 gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()- .2, 0., 0, "ONLY");
3ea9cb08 574// Methane supports
c60862bf 575 gMC->Gspos("SMLG", 1, "SRIC", pcX/2 + (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
576 gMC->Gspos("SMLG", 2, "SRIC", - pcX/2 - (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY");
577 gMC->Gspos("SMSH", 1, "SRIC", 0., 1.276 + .25, pcY/2 + (68.35 - pcY/2)/2, 0, "ONLY");
578 gMC->Gspos("SMSH", 2, "SRIC", 0., 1.276 + .25, - pcY/2 - (68.35 - pcY/2)/2, 0, "ONLY");
3ea9cb08 579//Freon supports
d4c94996 580 Float_t suppY = 1.276 - P()->GapThickness()/2- P()->QuartzThickness() -P()->FreonThickness() - .2 + .3; //y position of freon supports
581 gMC->Gspos("SFLG", 1, "SRIC", P()->QuartzWidth()/2 + (66.3 - P()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
582 gMC->Gspos("SFLG", 2, "SRIC", - P()->QuartzWidth()/2 - (66.3 - P()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY");
583 gMC->Gspos("SFSH", 1, "SRIC", 0., suppY, P()->QuartzLength()/2 + (68.35 - P()->QuartzLength()/2)/2, 0, "ONLY");
584 gMC->Gspos("SFSH", 2, "SRIC", 0., suppY, - P()->QuartzLength()/2 - (68.35 - P()->QuartzLength()/2)/2, 0, "ONLY");
3ea9cb08 585 AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
586//Place spacers
587 Int_t nspacers = 30;
588 for (i = 0; i < nspacers/3; i++) {
589 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
590 gMC->Gspos("SPAC", i, "FRE1", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
591 }
592 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
593 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
594 gMC->Gspos("SPAC", i, "FRE1", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
595 }
596 for (i = (nspacers*2)/3; i < nspacers; ++i) {
597 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
598 gMC->Gspos("SPAC", i, "FRE1", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
599 }
600 for (i = 0; i < nspacers/3; i++) {
601 zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2;
602 gMC->Gspos("SPAC", i, "FRE2", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
603 }
604 for (i = nspacers/3; i < (nspacers*2)/3; i++) {
605 zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2;
606 gMC->Gspos("SPAC", i, "FRE2", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings
607 }
608 for (i = (nspacers*2)/3; i < nspacers; ++i) {
609 zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2;
610 gMC->Gspos("SPAC", i, "FRE2", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings
611 }
612 gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
613 gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
d4c94996 614 gMC->Gspos("OQF1", 1, "SRIC", P()->OuterFreonWidth()/2 + P()->InnerFreonWidth()/2 + 2, 1.276 - P()->GapThickness()/2- P()->QuartzThickness() -P()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (31.3)
615 gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings
616 gMC->Gspos("OQF1", 3, "SRIC", - (P()->OuterFreonWidth()/2 + P()->InnerFreonWidth()/2) - 2, 1.276 - P()->GapThickness()/2 - P()->QuartzThickness() - P()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (-31.3)
617 gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - P()->GapThickness()/2 - P()->QuartzThickness()/2, 0., 0, "ONLY");
618 gMC->Gspos("GAP ", 1, "META", 0., P()->GapThickness()/2 - P()->ProximityGap()/2 - 0.0001, 0., 0, "ONLY");
3ea9cb08 619 gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
d4c94996 620 gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + P()->GapThickness()/2 + .25, 0., 0, "ONLY");
3ea9cb08 621//Wire support placing
d4c94996 622 gMC->Gspos("WSG2", 1, "GAP ", 0., P()->ProximityGap()/2 - .1, 0., 0, "ONLY");
3ea9cb08 623 gMC->Gspos("WSG1", 1, "CSI ", 0., 0., 0., 0, "ONLY");
d4c94996 624 gMC->Gspos("WSMe", 1, "SRIC ", 0., 1.276 + P()->GapThickness()/2 + .5 + 1.05, 0., 0, "ONLY");
3ea9cb08 625//Backplane placing
d4c94996 626 gMC->Gspos("BACK", 1, "SRIC ", -33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2, 43.3, 0, "ONLY");
627 gMC->Gspos("BACK", 2, "SRIC ", 33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2 , 43.3, 0, "ONLY");
628 gMC->Gspos("BACK", 3, "SRIC ", -33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
629 gMC->Gspos("BACK", 4, "SRIC ", 33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY");
630 gMC->Gspos("BACK", 5, "SRIC ", 33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
631 gMC->Gspos("BACK", 6, "SRIC ", -33.15, 1.276 + P()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY");
3ea9cb08 632//PCB placing
d4c94996 633 gMC->Gspos("PCB ", 1, "SRIC ", 0., 1.276 + P()->GapThickness()/2 + .5 + 1.05, pcX/4 + .5025 + 2.5, 0, "ONLY");
634 gMC->Gspos("PCB ", 2, "SRIC ", 0., 1.276 + P()->GapThickness()/2 + .5 + 1.05, -pcX/4 - .5025 - 2.5, 0, "ONLY");
3ea9cb08 635
636//place chambers into mother volume ALIC
c021cb15 637 for(int i=1;i<=kNCH;i++){
3ea9cb08 638 AliMatrix(idrotm[1000+i],C(i)->ThetaXd(),C(i)->PhiXd(),
639 C(i)->ThetaYd(),C(i)->PhiYd(),
640 C(i)->ThetaZd(),C(i)->PhiZd());
c021cb15 641 gMC->Gspos("RICH",i,"ALIC",C(i)->X(),C(i)->Y(),C(i)->Z(),idrotm[1000+i], "ONLY");
3ea9cb08 642 }
643
644 if(GetDebug())Info("CreateGeometry","Stop.");
645}//void AliRICH::CreateGeometry()
c60862bf 646//__________________________________________________________________________________________________
3ea9cb08 647void AliRICH::CreateChambers()
53fd478b 648{
649//create all RICH Chambers on each call. Previous chambers deleted
543d5224 650 if(fChambers) delete fChambers;
c60862bf 651 if(GetDebug())Info("CreateChambers","Creating RICH chambers.");
3ea9cb08 652 fChambers=new TObjArray(kNCH);
653 fChambers->SetOwner();
d4c94996 654 for(int i=0;i<kNCH;i++) fChambers->AddAt(new AliRICHChamber(i+1,P()),i);
3ea9cb08 655}//void AliRICH::CreateChambers()
c021cb15 656//__________________________________________________________________________________________________
c60862bf 657void AliRICH::GenerateFeedbacks(Int_t iChamber,Float_t eloss)
53fd478b 658{
3582c1f9 659// Generate FeedBack photons
660// eloss=0 means photon so only pulse height distribution is to be analysed. This one is done in AliRICHParam::TotQdc()
661
ed3ceb24 662 TLorentzVector x4;
663 gMC->TrackPosition(x4);
3582c1f9 664 TVector2 x2=C(iChamber)->Glob2Loc(x4);
d4c94996 665 Int_t sector=P()->Sector(x2); if(sector==kBad) return; //hit in dead zone nothing to produce
666 Int_t iTotQdc=P()->TotQdc(x2,eloss);
ed3ceb24 667 Int_t iNphotons=gMC->GetRandom()->Poisson(P()->AlphaFeedback(sector)*iTotQdc);
668 if(GetDebug())Info("GenerateFeedbacks","N photons=%i",iNphotons);
669 Int_t j;
670 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
c021cb15 671//Generate photons
3582c1f9 672 for(Int_t i=0;i<iNphotons;i++){//feedbacks loop
c021cb15 673 Double_t ranf[2];
674 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
675 cthf=ranf[0]*2-1.0;
676 if(cthf<0) continue;
677 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
678 phif = ranf[1] * 2 * TMath::Pi();
679
680 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
681 enfp = 7.5e-9;
682 else if(randomNumber<=0.7)
683 enfp = 6.4e-9;
684 else
685 enfp = 7.9e-9;
686
687
688 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
689 gMC->Gdtom(dir, mom, 2);
690 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
691 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
692
693 // Polarisation
694 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
695 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
696 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
697
698 vmod=0;
699 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
700 if (!vmod) for(j=0;j<3;j++) {
701 uswop=e1[j];
702 e1[j]=e3[j];
703 e3[j]=uswop;
704 }
705 vmod=0;
706 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
707 if (!vmod) for(j=0;j<3;j++) {
708 uswop=e2[j];
709 e2[j]=e3[j];
710 e3[j]=uswop;
711 }
712
ed3ceb24 713 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;
714 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 715
716 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
717 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
718 gMC->Gdtom(pol, pol, 2);
719 Int_t outputNtracksStored;
5d12ce38 720 gAlice->GetMCApp()->PushTrack(1, //do not transport
721 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
c021cb15 722 kFeedback, //PID
723 mom[0],mom[1],mom[2],mom[3], //track momentum
ed3ceb24 724 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
c021cb15 725 pol[0],pol[1],pol[2], //polarization
ed3ceb24 726 kPFeedBackPhoton,
727 outputNtracksStored,
728 1.0);
729 }//feedbacks loop
730}//GenerateFeedbacks()
c021cb15 731//__________________________________________________________________________________________________
89924db8 732
733void AliRICH::Reconstruct() const
734{
735// reconstruct clusters
736
737 AliRICHClusterFinder clusterer(const_cast<AliRICH*>(this));
738 clusterer.Exec();
739}
740