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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 | 35 | ClassImp(AliRICHhit) |
c60862bf | 36 | //__________________________________________________________________________________________________ |
37 | void 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 | 43 | ClassImp(AliRICHdigit) |
c60862bf | 44 | //__________________________________________________________________________________________________ |
45 | void 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 | //__________________________________________________________________________________________________ | |
51 | ClassImp(AliRICHcluster) | |
52 | //__________________________________________________________________________________________________ | |
53 | void 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 | 59 | ClassImp(AliRICHreco) |
60 | //__________________________________________________________________________________________________ | |
61 | void AliRICHreco::Print(Option_t*)const | |
62 | { | |
63 | ::Info("reco","ThetaCherenkov=%9.6f, Nphotons=%4i, TID=%9i",fThetaCherenkov,fNphotons,fTid); | |
64 | } | |
65 | //__________________________________________________________________________________________________ | |
c60862bf | 66 | ClassImp(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 | 75 | AliRICH::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 | 88 | AliRICH::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 | 104 | AliRICH::~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 | 121 | void 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 | 160 | void 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 | 203 | void 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 | 272 | Float_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 | 329 | Float_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 | 361 | void 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 | 397 | void 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 | 433 | void 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 | 441 | void 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 | 647 | void 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 | 657 | void 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 | |
733 | void AliRICH::Reconstruct() const | |
734 | { | |
735 | // reconstruct clusters | |
736 | ||
737 | AliRICHClusterFinder clusterer(const_cast<AliRICH*>(this)); | |
738 | clusterer.Exec(); | |
739 | } | |
740 |