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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 | // ************************************************************************** | |
15 | ||
16 | #include "AliRICH.h" | |
17 | #include "AliRICHParam.h" | |
18 | #include "AliRICHChamber.h" | |
19 | #include <TArrayF.h> | |
20 | #include <TGeometry.h> | |
21 | #include <TBRIK.h> | |
22 | #include <TTUBE.h> | |
23 | #include <TFile.h> | |
24 | #include <TNode.h> | |
25 | #include <TObjArray.h> | |
26 | #include <AliMagF.h> | |
27 | #include <AliRun.h> | |
28 | #include <AliRunDigitizer.h> | |
29 | #include <AliMC.h> | |
30 | #include <TVirtualMC.h> | |
31 | #include "AliRICHDigitizer.h" | |
32 | ||
33 | ClassImp(AliRICHhit) | |
34 | //__________________________________________________________________________________________________ | |
35 | void AliRICHhit::Print(Option_t*)const | |
36 | { | |
37 | TVector3 glob(fX,fY,fZ); | |
38 | AliRICH *pRich = (AliRICH*)gAlice->GetDetector("RICH"); | |
39 | TVector3 loc = pRich->C(fChamber)->Glob2Loc(glob); | |
40 | ::Info("hit","chamber=%2i, PID=%9i, TID=%6i, eloss=%9.3f eV, XYz(%7.2f,%7.2f,%7.2f)",fChamber,fPid,fTrack,fEloss*1e9,loc.X(),loc.Y(),loc.Z()); | |
41 | } | |
42 | //__________________________________________________________________________________________________ | |
43 | ClassImp(AliRICHdigit) | |
44 | //__________________________________________________________________________________________________ | |
45 | void AliRICHdigit::Print(Option_t*)const | |
46 | { | |
47 | ::Info("digit","ID=%6i, PID=%9i, c=%2i, x=%3i, y=%3i, q=%8.2f, TID1=%5i, TID2=%5i, TID3=%5i", | |
48 | Id(), fCombiPid,fChamber,fPadX,fPadY,fQdc,fTracks[0],fTracks[1],fTracks[2]); | |
49 | } | |
50 | //__________________________________________________________________________________________________ | |
51 | ClassImp(AliRICHcluster) | |
52 | //__________________________________________________________________________________________________ | |
53 | void AliRICHcluster::Print(Option_t*)const | |
54 | { | |
55 | ::Info("cluster","CombiPid=%10i, c=%2i, size=%4i, dim=%5i, x=%7.3f, y=%7.3f, Q=%6i, st=%i", | |
56 | fCombiPid,fChamber,fSize,fDimXY,fX,fY,fQdc,fStatus); | |
57 | } | |
58 | //__________________________________________________________________________________________________ | |
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 | //__________________________________________________________________________________________________ | |
66 | ClassImp(AliRICH) | |
67 | //__________________________________________________________________________________________________ | |
68 | // RICH manager class | |
69 | //BEGIN_HTML | |
70 | /* | |
71 | <img src="gif/alirich.gif"> | |
72 | */ | |
73 | //END_HTML | |
74 | //__________________________________________________________________________________________________ | |
75 | AliRICH::AliRICH() | |
76 | :AliDetector() | |
77 | { | |
78 | //Default ctor should not contain any new operators | |
79 | fpParam =0; | |
80 | fChambers =0; | |
81 | //AliDetector ctor deals with Hits and Digits | |
82 | fSdigits =0; fNsdigits =0; | |
83 | fDigitsNew =0; for(int i=0;i<kNCH;i++) fNdigitsNew[i] =0; | |
84 | fClusters =0; for(int i=0;i<kNCH;i++) fNclusters[i]=0; | |
85 | ||
86 | fCerenkovs =0; fNcerenkovs =0; | |
87 | fSpecials =0; fNspecials =0; | |
88 | fCkovNumber=fFreonProd=0; | |
89 | }//AliRICH::AliRICH() | |
90 | //__________________________________________________________________________________________________ | |
91 | AliRICH::AliRICH(const char *name, const char *title) | |
92 | :AliDetector(name,title) | |
93 | { | |
94 | //Named ctor | |
95 | if(GetDebug())Info("named ctor","Start."); | |
96 | fpParam = new AliRICHParam; | |
97 | fChambers = 0; CreateChambers(); | |
98 | //AliDetector ctor deals with Hits and Digits (reset them to 0, does not create them) | |
99 | fHits= 0; CreateHits(); gAlice->GetMCApp()->AddHitList(fHits); | |
100 | fSdigits= 0; | |
101 | fDigitsNew= 0; | |
102 | fClusters= 0; | |
103 | ||
104 | fCerenkovs= 0; CreateCerenkovsOld(); gAlice->GetMCApp()->AddHitList(fCerenkovs); | |
105 | fSpecials= 0; CreateSpecialsOld(); | |
106 | ||
107 | fCkovNumber=fFreonProd=0; | |
108 | if(GetDebug())Info("named ctor","Stop."); | |
109 | }//AliRICH::AliRICH(const char *name, const char *title) | |
110 | //__________________________________________________________________________________________________ | |
111 | AliRICH::~AliRICH() | |
112 | { | |
113 | //dtor | |
114 | if(GetDebug()) Info("dtor","Start."); | |
115 | ||
116 | if(fpParam) delete fpParam; | |
117 | if(fChambers) delete fChambers; | |
118 | ||
119 | if(fHits) delete fHits; | |
120 | if(fSdigits) delete fSdigits; | |
121 | if(fDigits) delete fDigits; | |
122 | if(fDigitsNew) {fDigitsNew->Delete(); delete fDigitsNew;} | |
123 | if(fClusters) {fClusters->Delete(); delete fClusters;} | |
124 | ||
125 | if(fCerenkovs) delete fCerenkovs; | |
126 | if(fSpecials) delete fSpecials; | |
127 | if(GetDebug()) Info("dtor","Stop."); | |
128 | }//AliRICH::~AliRICH() | |
129 | //__________________________________________________________________________________________________ | |
130 | void AliRICH::Hits2SDigits() | |
131 | { | |
132 | //Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits. | |
133 | if(GetDebug()) Info("Hit2SDigits","Start."); | |
134 | if(GetDebug()) Info("Hit2SDigits","Stop."); | |
135 | }//void AliRICH::Hits2SDigits() | |
136 | //__________________________________________________________________________________________________ | |
137 | AliDigitizer* AliRICH::CreateDigitizer(AliRunDigitizer* manager) | |
138 | { | |
139 | return new AliRICHDigitizer(manager); | |
140 | } | |
141 | //__________________________________________________________________________________________________ | |
142 | void AliRICH::SDigits2Digits() | |
143 | { | |
144 | //Generate digits from sdigits. | |
145 | if(GetDebug()) Info("SDigits2Digits","Start."); | |
146 | if(GetDebug()) Info("SDigits2Digits","Stop."); | |
147 | }//SDigits2Digits() | |
148 | //__________________________________________________________________________________________________ | |
149 | void AliRICH::BuildGeometry() | |
150 | { | |
151 | //Builds a TNode geometry for event display | |
152 | if(GetDebug())Info("BuildGeometry","Start."); | |
153 | ||
154 | TNode *node, *subnode, *top; | |
155 | top=gAlice->GetGeometry()->GetNode("alice"); | |
156 | ||
157 | new TBRIK("S_RICH","S_RICH","void",71.09999,11.5,73.15); | |
158 | ||
159 | Float_t wid=Param()->SectorSizeX(); | |
160 | Float_t len=Param()->SectorSizeY(); | |
161 | new TBRIK("PHOTO","PHOTO","void",wid/2,0.1,len/2); | |
162 | ||
163 | for(int i=1;i<=kNCH;i++){ | |
164 | top->cd(); | |
165 | node = new TNode(Form("RICH%i",i),Form("RICH%i",i),"S_RICH",C(i)->X(),C(i)->Y(),C(i)->Z(),C(i)->RotMatrixName()); | |
166 | node->SetLineColor(kRed); | |
167 | node->cd(); | |
168 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,""); | |
169 | subnode->SetLineColor(kGreen); | |
170 | fNodes->Add(subnode); | |
171 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,len/2+Param()->DeadZone()/2,""); | |
172 | subnode->SetLineColor(kGreen); | |
173 | fNodes->Add(subnode); | |
174 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,len/2+Param()->DeadZone()/2,""); | |
175 | subnode->SetLineColor(kGreen); | |
176 | fNodes->Add(subnode); | |
177 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",wid+Param()->DeadZone(),5,-len/2-Param()->DeadZone()/2,""); | |
178 | subnode->SetLineColor(kGreen); | |
179 | fNodes->Add(subnode); | |
180 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",0,5,-len/2 -Param()->DeadZone()/2,""); | |
181 | subnode->SetLineColor(kGreen); | |
182 | fNodes->Add(subnode); | |
183 | subnode = new TNode("PHOTO1","PHOTO1","PHOTO",-wid-Param()->DeadZone(),5,-len/2 - Param()->DeadZone()/2,""); | |
184 | subnode->SetLineColor(kGreen); | |
185 | fNodes->Add(subnode); | |
186 | fNodes->Add(node); | |
187 | } | |
188 | if(GetDebug())Info("BuildGeometry","Stop."); | |
189 | }//void AliRICH::BuildGeometry() | |
190 | ||
191 | //______________________________________________________________________________ | |
192 | void AliRICH::CreateMaterials() | |
193 | { | |
194 | // | |
195 | // *** DEFINITION OF AVAILABLE RICH MATERIALS *** | |
196 | ||
197 | #include "Opticals.h" | |
198 | ||
199 | Float_t a=0,z=0,den=0,radl=0,absl=0; | |
200 | Float_t tmaxfd=-10.0, deemax=-0.2, stemax=-0.1,epsil=0.001, stmin=-0.001; | |
201 | Int_t isxfld = gAlice->Field()->Integ(); | |
202 | Float_t sxmgmx = gAlice->Field()->Max(); | |
203 | ||
204 | AliMaterial( 1, "Air $",a=14.61,z=7.3, den=0.001205,radl=30420.0,absl=67500);//(Air) | |
205 | AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
206 | ||
207 | AliMaterial( 6, "HON", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //(C)-equivalent radl | |
208 | AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
209 | ||
210 | AliMaterial(16, "CSI", a=12.01,z=6.0, den=0.1, radl=18.8, absl=0); //CsI-radl equivalent | |
211 | AliMedium(kCSI, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin); | |
212 | ||
213 | AliMaterial(11, "GRI", a=63.54,z=29.0,den=8.96, radl=1.43, absl=0); //anode grid (Cu) | |
214 | AliMedium(7, "GRID$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
215 | ||
216 | AliMaterial(50, "ALUM", a=26.98,z=13.0,den=2.7, radl=8.9, absl=0); //aluminium sheet (Al) | |
217 | AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
218 | ||
219 | AliMaterial(31, "COPPER$", a=63.54,z=29.0,den=8.96, radl=1.4, absl=0); //(Cu) | |
220 | AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
221 | ||
222 | Float_t aQuartz[2]={28.09,16.0}; Float_t zQuartz[2]={14.00, 8.0}; Float_t wmatQuartz[2]={1,2}; | |
223 | AliMixture (20, "QUA",aQuartz,zQuartz,den=2.64,-2, wmatQuartz);//Quarz (SiO2) - trasnparent | |
224 | AliMedium(3, "QUARTZ$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
225 | ||
226 | AliMixture (21, "QUAO",aQuartz, zQuartz, den=2.64, -2, wmatQuartz);//Quarz (SiO2) - opaque | |
227 | AliMedium(8, "QUARTZO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
228 | ||
229 | Float_t aFreon[2]={12,19}; Float_t zFreon[2]={6,9}; Float_t wmatFreon[2]={6,14}; | |
230 | AliMixture (30, "FRE",aFreon,zFreon,den=1.7,-2,wmatFreon);//Freon (C6F14) | |
231 | AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
232 | ||
233 | Float_t aMethane[2]={12.01,1}; Float_t zMethane[2]={6,1}; Float_t wmatMethane[2]={1,4}; | |
234 | AliMixture (40, "MET", aMethane, zMethane, den=7.17e-4,-2, wmatMethane);//methane (CH4) | |
235 | AliMedium(5, "METHANE$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
236 | ||
237 | AliMixture (41, "METG", aMethane, zMethane, den=7.17e-4, -2, wmatMethane); | |
238 | AliMedium(kGAP, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, 0.1, -deemax, epsil, -stmin); | |
239 | ||
240 | Float_t aGlass[5]={12.01, 28.09, 16., 10.8, 23.}; | |
241 | Float_t zGlass[5]={ 6., 14., 8., 5., 11.}; | |
242 | Float_t wGlass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01}; | |
243 | AliMixture (32, "GLASS",aGlass, zGlass, den=1.74, 5, wGlass);//Glass 50%C+10.5%Si+35.5%O+3% + 1% | |
244 | AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
245 | ||
246 | Int_t *idtmed = fIdtmed->GetArray()-999; | |
247 | gMC->SetCerenkov(idtmed[1000], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4); | |
248 | gMC->SetCerenkov(idtmed[1001], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4); | |
249 | gMC->SetCerenkov(idtmed[1002], kNbins, aPckov, aAbsSiO2, aQeAll, aIdxSiO2); | |
250 | gMC->SetCerenkov(idtmed[1003], kNbins, aPckov, aAbsC6F14, aQeAll, aIdxC6F14); | |
251 | gMC->SetCerenkov(idtmed[1004], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4); | |
252 | gMC->SetCerenkov(idtmed[1005], kNbins, aPckov, aAbsCsI, aQeCsI, aIdxCH4); | |
253 | gMC->SetCerenkov(idtmed[1006], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid); | |
254 | gMC->SetCerenkov(idtmed[1007], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2); | |
255 | gMC->SetCerenkov(idtmed[1008], kNbins, aPckov, aAbsCH4, aQeAll, aIdxCH4); | |
256 | gMC->SetCerenkov(idtmed[1009], kNbins, aPckov, aAbsGrid, aQeAll, aIdxGrid); | |
257 | gMC->SetCerenkov(idtmed[1010], kNbins, aPckov, aAbsOpSiO2, aQeAll, aIdxOpSiO2); | |
258 | ||
259 | }//void AliRICH::CreateMaterials() | |
260 | //__________________________________________________________________________________________________ | |
261 | Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const | |
262 | { | |
263 | ||
264 | //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.) | |
265 | ||
266 | Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2, | |
267 | 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7, | |
268 | 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5}; | |
269 | Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05, | |
270 | 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11, | |
271 | 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95, | |
272 | 1.72,1.53}; | |
273 | Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543, | |
274 | 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878, | |
275 | 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824, | |
276 | 1.714,1.498}; | |
277 | Float_t xe=ene; | |
278 | Int_t j=Int_t(xe*10)-49; | |
279 | Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]); | |
280 | Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]); | |
281 | ||
282 | //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR | |
283 | //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197 | |
284 | ||
285 | Float_t sinin=TMath::Sqrt(1-pdoti*pdoti); | |
286 | Float_t tanin=sinin/pdoti; | |
287 | ||
288 | Float_t c1=cn*cn-ck*ck-sinin*sinin; | |
289 | Float_t c2=4*cn*cn*ck*ck; | |
290 | Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1)); | |
291 | Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1); | |
292 | ||
293 | Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2); | |
294 | Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2); | |
295 | ||
296 | ||
297 | //CORRECTION FACTOR FOR SURFACE ROUGHNESS | |
298 | //B.J. STAGG APPLIED OPTICS, 30(1991),4113 | |
299 | ||
300 | Float_t sigraf=18.; | |
301 | Float_t lamb=1240/ene; | |
302 | Float_t fresn; | |
303 | ||
304 | Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb)); | |
305 | ||
306 | if(pola) | |
307 | { | |
308 | Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S | |
309 | fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr)); | |
310 | } | |
311 | else | |
312 | fresn=0.5*(rp+rs); | |
313 | ||
314 | fresn = fresn*rO; | |
315 | return(fresn); | |
316 | }//Fresnel() | |
317 | //__________________________________________________________________________________________________ | |
318 | Float_t AliRICH::AbsoCH4(Float_t x)const | |
319 | { | |
320 | //Evaluate the absorbtion lenght of CH4 | |
321 | Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22 | |
322 | Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55}; | |
323 | const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3 | |
324 | const Float_t kPressure=750.,kTemperature=283.; | |
325 | const Float_t kPn=kPressure/760.; | |
326 | const Float_t kTn=kTemperature/273.16; | |
327 | const Float_t kC0=-1.655279e-1; | |
328 | const Float_t kC1=6.307392e-2; | |
329 | const Float_t kC2=-8.011441e-3; | |
330 | const Float_t kC3=3.392126e-4; | |
331 | ||
332 | Float_t crossSection=0; | |
333 | if (x<7.75) | |
334 | crossSection=.06e-22; | |
335 | else if(x>=7.75 && x<=8.1){ //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978) | |
336 | crossSection=(kC0+kC1*x+kC2*x*x+kC3*x*x*x)*1.e-18; | |
337 | }else if (x> 8.1){ | |
338 | Int_t j=0; | |
339 | while (x<=em[j] || x>=em[j+1]){ | |
340 | j++; | |
341 | Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]); | |
342 | crossSection=(sch4[j]+a*(x-em[j]))*1e-22; | |
343 | } | |
344 | }//if | |
345 | ||
346 | Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular density 1/cm-3 | |
347 | return 1./(density*crossSection); | |
348 | }//AbsoCH4() | |
349 | //__________________________________________________________________________________________________ | |
350 | void AliRICH::MakeBranch(Option_t* option) | |
351 | { | |
352 | //Create Tree branches for the RICH. | |
353 | if(GetDebug())Info("MakeBranch","Start with option= %s.",option); | |
354 | ||
355 | const Int_t kBufferSize = 4000; | |
356 | ||
357 | const char *cH = strstr(option,"H"); | |
358 | const char *cD = strstr(option,"D"); | |
359 | const char *cR = strstr(option,"R"); | |
360 | const char *cS = strstr(option,"S"); | |
361 | ||
362 | if(cH&&TreeH()){//H | |
363 | CreateHits(); //branch will be created in AliDetector::MakeBranch | |
364 | CreateCerenkovsOld(); MakeBranchInTree(TreeH(),"RICHCerenkov", &fCerenkovs, kBufferSize,0); | |
365 | CreateSpecialsOld(); MakeBranchInTree(TreeH(),"RICHSpecials", &fSpecials,kBufferSize,0); | |
366 | }//H | |
367 | AliDetector::MakeBranch(option);//this is after cH because we need to guarantee that fHits array is created | |
368 | ||
369 | if(cS&&fLoader->TreeS()){//S | |
370 | CreateSDigits(); MakeBranchInTree(fLoader->TreeS(),"RICH",&fSdigits,kBufferSize,0) ; | |
371 | }//S | |
372 | ||
373 | if(cD&&fLoader->TreeD()){//D | |
374 | CreateDigits(); | |
375 | for(Int_t i=0;i<kNCH;i++){ | |
376 | MakeBranchInTree(fLoader->TreeD(),Form("%s%d",GetName(),i+1),&((*fDigitsNew)[i]),kBufferSize,0); | |
377 | } | |
378 | }//D | |
379 | ||
380 | if(cR&&fLoader->TreeR()){//R | |
381 | CreateClusters(); | |
382 | for(Int_t i=0;i<kNCH;i++) | |
383 | MakeBranchInTree(fLoader->TreeR(),Form("%sClusters%d",GetName(),i+1), &((*fClusters)[i]), kBufferSize, 0); | |
384 | }//R | |
385 | if(GetDebug())Info("MakeBranch","Stop."); | |
386 | }//void AliRICH::MakeBranch(Option_t* option) | |
387 | //__________________________________________________________________________________________________ | |
388 | void AliRICH::SetTreeAddress() | |
389 | { | |
390 | //Set branch address for the Hits and Digits Tree. | |
391 | if(GetDebug())Info("SetTreeAddress","Start."); | |
392 | ||
393 | TBranch *branch; | |
394 | ||
395 | if(fLoader->TreeH()){//H | |
396 | if(GetDebug())Info("SetTreeAddress","tree H is requested."); | |
397 | CreateHits();//branch map will be in AliDetector::SetTreeAddress | |
398 | branch=fLoader->TreeH()->GetBranch("RICHCerenkov"); if(branch){CreateCerenkovsOld(); branch->SetAddress(&fCerenkovs);} | |
399 | branch=fLoader->TreeH()->GetBranch("RICHSpecials"); if(branch){CreateSpecialsOld(); branch->SetAddress(&fSpecials);} | |
400 | }//H | |
401 | AliDetector::SetTreeAddress();//this is after TreeH because we need to guarantee that fHits array is created | |
402 | ||
403 | if(fLoader->TreeS()){//S | |
404 | if(GetDebug())Info("SetTreeAddress","tree S is requested."); | |
405 | branch=fLoader->TreeS()->GetBranch(GetName()); if(branch){CreateSDigits(); branch->SetAddress(&fSdigits);} | |
406 | }//S | |
407 | ||
408 | if(fLoader->TreeD()){//D | |
409 | if(GetDebug())Info("SetTreeAddress","tree D is requested."); | |
410 | for(int i=0;i<kNCH;i++){ | |
411 | branch=fLoader->TreeD()->GetBranch(Form("%s%d",GetName(),i+1)); | |
412 | if(branch){CreateDigits(); branch->SetAddress(&((*fDigitsNew)[i]));} | |
413 | } | |
414 | }//D | |
415 | ||
416 | if(fLoader->TreeR()){//R | |
417 | if(GetDebug())Info("SetTreeAddress","tree R is requested."); | |
418 | for(int i=0;i<kNCH;i++){ | |
419 | branch=fLoader->TreeR()->GetBranch(Form("%sClusters%d" ,GetName(),i+1)); | |
420 | if(branch){CreateClusters(); branch->SetAddress(&((*fClusters)[i]));} | |
421 | } | |
422 | }//R | |
423 | if(GetDebug())Info("SetTreeAddress","Stop."); | |
424 | }//void AliRICH::SetTreeAddress() | |
425 | //__________________________________________________________________________________________________ | |
426 | void AliRICH::Print(Option_t *option)const | |
427 | { | |
428 | //Debug printout | |
429 | TObject::Print(option); | |
430 | Param()->Dump(); | |
431 | fChambers->Print(option); | |
432 | }//void AliRICH::Print(Option_t *option)const | |
433 | //__________________________________________________________________________________________________ | |
434 | void AliRICH::CreateGeometry() | |
435 | { | |
436 | //Creates detailed geometry simulation (currently GEANT volumes tree) | |
437 | if(GetDebug())Info("CreateGeometry","Start."); | |
438 | //Opaque quartz thickness | |
439 | Float_t oquaThickness = .5; | |
440 | //CsI dimensions | |
441 | Float_t pcX=Param()->PcSizeX(); | |
442 | Float_t pcY=Param()->PcSizeY(); | |
443 | ||
444 | Int_t *idtmed = fIdtmed->GetArray()-999; | |
445 | ||
446 | Int_t i; | |
447 | Float_t zs; | |
448 | Int_t idrotm[1099]; | |
449 | Float_t par[3]; | |
450 | ||
451 | //External aluminium box | |
452 | par[0]=68.8;par[1]=13;par[2]=70.86; gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3); | |
453 | //Air | |
454 | par[0]=66.3; par[1] = 13; par[2] = 68.35; gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3); | |
455 | //Air 2 (cutting the lower part of the box) | |
456 | par[0]=1.25; par[1] = 3; par[2] = 70.86; gMC->Gsvolu("AIR2", "BOX ", idtmed[1000], par, 3); | |
457 | //Air 3 (cutting the lower part of the box) | |
458 | par[0]=66.3; par[1] = 3; par[2] = 1.2505; gMC->Gsvolu("AIR3", "BOX ", idtmed[1000], par, 3); | |
459 | //Honeycomb | |
460 | par[0]=66.3;par[1]=0.188; par[2] = 68.35; gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3); | |
461 | //Aluminium sheet | |
462 | par[0]=66.3;par[1]=0.025;par[2]=68.35; gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3); | |
463 | //par[0] = 66.5; par[1] = .025; par[2] = 63.1; | |
464 | //Quartz | |
465 | par[0]=Param()->QuartzWidth()/2;par[1]=Param()->QuartzThickness()/2;par[2]=Param()->QuartzLength()/2; | |
466 | gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3); | |
467 | //Spacers (cylinders) | |
468 | par[0]=0.;par[1]=.5;par[2]=Param()->FreonThickness()/2; gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3); | |
469 | //Feet (freon slabs supports) | |
470 | par[0] = .7; par[1] = .3; par[2] = 1.9; gMC->Gsvolu("FOOT", "BOX", idtmed[1009], par, 3); | |
471 | //Opaque quartz | |
472 | par[0]=Param()->QuartzWidth()/2;par[1]= .2;par[2]=Param()->QuartzLength()/2; | |
473 | gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3); | |
474 | //Frame of opaque quartz | |
475 | par[0]=Param()->OuterFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->OuterFreonLength()/2; | |
476 | gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3); | |
477 | par[0]=Param()->InnerFreonWidth()/2;par[1]=Param()->FreonThickness()/2;par[2]=Param()->InnerFreonLength()/2; | |
478 | gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3); | |
479 | //Freon | |
480 | par[0]=Param()->OuterFreonWidth()/2 - oquaThickness; | |
481 | par[1]=Param()->FreonThickness()/2; | |
482 | par[2]=Param()->OuterFreonLength()/2 - 2*oquaThickness; | |
483 | gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3); | |
484 | ||
485 | par[0]=Param()->InnerFreonWidth()/2 - oquaThickness; | |
486 | par[1]=Param()->FreonThickness()/2; | |
487 | par[2]=Param()->InnerFreonLength()/2 - 2*oquaThickness; | |
488 | gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3); | |
489 | //Methane | |
490 | par[0]=pcX/2;par[1]=Param()->GapThickness()/2;par[2]=pcY/2; gMC->Gsvolu("META","BOX ",idtmed[1004], par, 3); | |
491 | //Methane gap | |
492 | par[0]=pcX/2;par[1]=Param()->ProximityGapThickness()/2;par[2]=pcY/2;gMC->Gsvolu("GAP ","BOX ",(*fIdtmed)[kGAP],par,3); | |
493 | //CsI PC | |
494 | par[0]=pcX/2;par[1]=.25;par[2]=pcY/2; gMC->Gsvolu("CSI ", "BOX ", (*fIdtmed)[kCSI], par, 3); | |
495 | //Anode grid | |
496 | par[0] = 0.;par[1] = .001;par[2] = 20.; gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3); | |
497 | ||
498 | //Wire supports | |
499 | //Bar of metal | |
500 | par[0]=pcX/2;par[1]=1.05;par[2]=1.05; gMC->Gsvolu("WSMe", "BOX ", idtmed[1009], par, 3); | |
501 | //Ceramic pick up (base) | |
502 | par[0]=pcX/2;par[1]= .25;par[2]=1.05; gMC->Gsvolu("WSG1", "BOX ", idtmed[1010], par, 3); | |
503 | //Ceramic pick up (head) | |
504 | par[0] = pcX/2;par[1] = .1;par[2] = .1; gMC->Gsvolu("WSG2", "BOX ", idtmed[1010], par, 3); | |
505 | ||
506 | //Aluminium supports for methane and CsI | |
507 | //Short bar | |
508 | par[0]=pcX/2;par[1]=Param()->GapThickness()/2 + .25; par[2] = (68.35 - pcY/2)/2; | |
509 | gMC->Gsvolu("SMSH", "BOX", idtmed[1009], par, 3); | |
510 | //Long bar | |
511 | par[0]=(66.3 - pcX/2)/2;par[1]=Param()->GapThickness()/2+.25;par[2]=pcY/2+68.35-pcY/2; | |
512 | gMC->Gsvolu("SMLG", "BOX", idtmed[1009], par, 3); | |
513 | ||
514 | //Aluminium supports for freon | |
515 | //Short bar | |
516 | par[0] = Param()->QuartzWidth()/2; par[1] = .3; par[2] = (68.35 - Param()->QuartzLength()/2)/2; | |
517 | gMC->Gsvolu("SFSH", "BOX", idtmed[1009], par, 3); | |
518 | //Long bar | |
519 | par[0] = (66.3 - Param()->QuartzWidth()/2)/2; par[1] = .3; | |
520 | par[2] = Param()->QuartzLength()/2 + 68.35 - Param()->QuartzLength()/2; | |
521 | gMC->Gsvolu("SFLG", "BOX", idtmed[1009], par, 3); | |
522 | //PCB backplane | |
523 | par[0] = pcX/2;par[1] = .25; par[2] = pcY/4 -.5025; gMC->Gsvolu("PCB ", "BOX", idtmed[1011], par, 3); | |
524 | ||
525 | //Backplane supports | |
526 | //Aluminium slab | |
527 | par[0] = 33.15;par[1] = 2;par[2] = 21.65; gMC->Gsvolu("BACK", "BOX", idtmed[1009], par, 3); | |
528 | //Big hole | |
529 | par[0] = 9.05; par[1] = 2; par[2] = 4.4625; gMC->Gsvolu("BKHL", "BOX", idtmed[1000], par, 3); | |
530 | //Small hole | |
531 | par[0] = 5.7;par[1] = 2;par[2] = 4.4625; gMC->Gsvolu("BKHS", "BOX", idtmed[1000], par, 3); | |
532 | //Place holes inside backplane support | |
533 | gMC->Gspos("BKHS", 1, "BACK", .8 + 5.7,0., .6 + 4.4625, 0, "ONLY"); | |
534 | gMC->Gspos("BKHS", 2, "BACK", -.8 - 5.7,0., .6 + 4.4625, 0, "ONLY"); | |
535 | gMC->Gspos("BKHS", 3, "BACK", .8 + 5.7,0., -.6 - 4.4625, 0, "ONLY"); | |
536 | gMC->Gspos("BKHS", 4, "BACK", -.8 - 5.7,0., -.6 - 4.4625, 0, "ONLY"); | |
537 | gMC->Gspos("BKHS", 5, "BACK", .8 + 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY"); | |
538 | gMC->Gspos("BKHS", 6, "BACK", -.8 - 5.7,0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY"); | |
539 | gMC->Gspos("BKHS", 7, "BACK", .8 + 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY"); | |
540 | gMC->Gspos("BKHS", 8, "BACK", -.8 - 5.7,0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY"); | |
541 | gMC->Gspos("BKHL", 1, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., .6 + 4.4625, 0, "ONLY"); | |
542 | gMC->Gspos("BKHL", 2, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 4.4625, 0, "ONLY"); | |
543 | gMC->Gspos("BKHL", 3, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 4.4625, 0, "ONLY"); | |
544 | gMC->Gspos("BKHL", 4, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 4.4625, 0, "ONLY"); | |
545 | gMC->Gspos("BKHL", 5, "BACK", .8 + 11.4+ 1.6 + 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY"); | |
546 | gMC->Gspos("BKHL", 6, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., .6 + 8.925 + 1.2 + 4.4625, 0, "ONLY"); | |
547 | gMC->Gspos("BKHL", 7, "BACK", .8 + 11.4 + 1.6 + 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY"); | |
548 | gMC->Gspos("BKHL", 8, "BACK", -.8 - 11.4 - 1.6 - 9.05, 0., -.6 - 8.925 - 1.2 - 4.4625, 0, "ONLY"); | |
549 | //Place material inside RICH | |
550 | gMC->Gspos("SRIC", 1, "RICH", 0.,0., 0., 0, "ONLY"); | |
551 | gMC->Gspos("AIR2", 1, "RICH", 66.3 + 1.2505, 1.276-Param()->GapThickness()/2-Param()->QuartzThickness()-Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY"); | |
552 | gMC->Gspos("AIR2", 2, "RICH", -66.3 - 1.2505,1.276-Param()->GapThickness()/2-Param()->QuartzThickness()-Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 0., 0, "ONLY"); | |
553 | gMC->Gspos("AIR3", 1, "RICH", 0., 1.276-Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, -68.35 - 1.25, 0, "ONLY"); | |
554 | gMC->Gspos("AIR3", 2, "RICH", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.5 - 3.35, 68.35 + 1.25, 0, "ONLY"); | |
555 | gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .376 -.025, 0., 0, "ONLY"); | |
556 | gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .05 - .188, 0., 0, "ONLY"); | |
557 | gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .6 - .025, 0., 0, "ONLY"); | |
558 | gMC->Gspos("FOOT", 1, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY"); | |
559 | gMC->Gspos("FOOT", 2, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3 , 36.9, 0, "ONLY"); | |
560 | gMC->Gspos("FOOT", 3, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY"); | |
561 | gMC->Gspos("FOOT", 4, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, 36.9, 0, "ONLY"); | |
562 | gMC->Gspos("FOOT", 5, "SRIC", 64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY"); | |
563 | gMC->Gspos("FOOT", 6, "SRIC", 21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY"); | |
564 | gMC->Gspos("FOOT", 7, "SRIC", -21.65, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY"); | |
565 | gMC->Gspos("FOOT", 8, "SRIC", -64.95, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .4 - .3, -36.9, 0, "ONLY"); | |
566 | gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()- .2, 0., 0, "ONLY"); | |
567 | // Methane supports | |
568 | gMC->Gspos("SMLG", 1, "SRIC", pcX/2 + (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY"); | |
569 | gMC->Gspos("SMLG", 2, "SRIC", - pcX/2 - (66.3 - pcX/2)/2, 1.276 + .25, 0., 0, "ONLY"); | |
570 | gMC->Gspos("SMSH", 1, "SRIC", 0., 1.276 + .25, pcY/2 + (68.35 - pcY/2)/2, 0, "ONLY"); | |
571 | gMC->Gspos("SMSH", 2, "SRIC", 0., 1.276 + .25, - pcY/2 - (68.35 - pcY/2)/2, 0, "ONLY"); | |
572 | //Freon supports | |
573 | Float_t suppY = 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness() - .2 + .3; //y position of freon supports | |
574 | gMC->Gspos("SFLG", 1, "SRIC", Param()->QuartzWidth()/2 + (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY"); | |
575 | gMC->Gspos("SFLG", 2, "SRIC", - Param()->QuartzWidth()/2 - (66.3 - Param()->QuartzWidth()/2)/2, suppY, 0., 0, "ONLY"); | |
576 | gMC->Gspos("SFSH", 1, "SRIC", 0., suppY, Param()->QuartzLength()/2 + (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY"); | |
577 | gMC->Gspos("SFSH", 2, "SRIC", 0., suppY, - Param()->QuartzLength()/2 - (68.35 - Param()->QuartzLength()/2)/2, 0, "ONLY"); | |
578 | AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.); | |
579 | //Place spacers | |
580 | Int_t nspacers = 30; | |
581 | for (i = 0; i < nspacers/3; i++) { | |
582 | zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2; | |
583 | gMC->Gspos("SPAC", i, "FRE1", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
584 | } | |
585 | for (i = nspacers/3; i < (nspacers*2)/3; i++) { | |
586 | zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2; | |
587 | gMC->Gspos("SPAC", i, "FRE1", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
588 | } | |
589 | for (i = (nspacers*2)/3; i < nspacers; ++i) { | |
590 | zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2; | |
591 | gMC->Gspos("SPAC", i, "FRE1", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
592 | } | |
593 | for (i = 0; i < nspacers/3; i++) { | |
594 | zs = -11.6/2 + (TMath::Abs(nspacers/6) - i) * 12.2; | |
595 | gMC->Gspos("SPAC", i, "FRE2", 10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
596 | } | |
597 | for (i = nspacers/3; i < (nspacers*2)/3; i++) { | |
598 | zs = -11.6/2 + (nspacers/3 + TMath::Abs(nspacers/6) - i) * 12.2; | |
599 | gMC->Gspos("SPAC", i, "FRE2", 0, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
600 | } | |
601 | for (i = (nspacers*2)/3; i < nspacers; ++i) { | |
602 | zs = -11.6/2 + ((nspacers*2)/3 + TMath::Abs(nspacers/6) - i) * 12.2; | |
603 | gMC->Gspos("SPAC", i, "FRE2", -10.5, 0., zs, idrotm[1019], "ONLY"); //Original settings | |
604 | } | |
605 | gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY"); | |
606 | gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY"); | |
607 | gMC->Gspos("OQF1", 1, "SRIC", Param()->OuterFreonWidth()/2 + Param()->InnerFreonWidth()/2 + 2, 1.276 - Param()->GapThickness()/2- Param()->QuartzThickness() -Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (31.3) | |
608 | gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings | |
609 | gMC->Gspos("OQF1", 3, "SRIC", - (Param()->OuterFreonWidth()/2 + Param()->InnerFreonWidth()/2) - 2, 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness() - Param()->FreonThickness()/2, 0., 0, "ONLY"); //Original settings (-31.3) | |
610 | gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - Param()->GapThickness()/2 - Param()->QuartzThickness()/2, 0., 0, "ONLY"); | |
611 | gMC->Gspos("GAP ", 1, "META", 0., Param()->GapThickness()/2 - Param()->ProximityGapThickness()/2 - 0.0001, 0., 0, "ONLY"); | |
612 | gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY"); | |
613 | gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + Param()->GapThickness()/2 + .25, 0., 0, "ONLY"); | |
614 | //Wire support placing | |
615 | gMC->Gspos("WSG2", 1, "GAP ", 0., Param()->ProximityGapThickness()/2 - .1, 0., 0, "ONLY"); | |
616 | gMC->Gspos("WSG1", 1, "CSI ", 0., 0., 0., 0, "ONLY"); | |
617 | gMC->Gspos("WSMe", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, 0., 0, "ONLY"); | |
618 | //Backplane placing | |
619 | gMC->Gspos("BACK", 1, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 43.3, 0, "ONLY"); | |
620 | gMC->Gspos("BACK", 2, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2 , 43.3, 0, "ONLY"); | |
621 | gMC->Gspos("BACK", 3, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY"); | |
622 | gMC->Gspos("BACK", 4, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, 0., 0, "ONLY"); | |
623 | gMC->Gspos("BACK", 5, "SRIC ", 33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY"); | |
624 | gMC->Gspos("BACK", 6, "SRIC ", -33.15, 1.276 + Param()->GapThickness()/2 + .5 + 2.1 + 2, -43.3, 0, "ONLY"); | |
625 | //PCB placing | |
626 | gMC->Gspos("PCB ", 1, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, pcX/4 + .5025 + 2.5, 0, "ONLY"); | |
627 | gMC->Gspos("PCB ", 2, "SRIC ", 0., 1.276 + Param()->GapThickness()/2 + .5 + 1.05, -pcX/4 - .5025 - 2.5, 0, "ONLY"); | |
628 | ||
629 | //place chambers into mother volume ALIC | |
630 | for(int i=1;i<=kNCH;i++){ | |
631 | AliMatrix(idrotm[1000+i],C(i)->ThetaXd(),C(i)->PhiXd(), | |
632 | C(i)->ThetaYd(),C(i)->PhiYd(), | |
633 | C(i)->ThetaZd(),C(i)->PhiZd()); | |
634 | gMC->Gspos("RICH",i,"ALIC",C(i)->X(),C(i)->Y(),C(i)->Z(),idrotm[1000+i], "ONLY"); | |
635 | } | |
636 | ||
637 | if(GetDebug())Info("CreateGeometry","Stop."); | |
638 | }//void AliRICH::CreateGeometry() | |
639 | //__________________________________________________________________________________________________ | |
640 | void AliRICH::CreateChambers() | |
641 | { | |
642 | //create all RICH Chambers on each call. Previous chambers deleted | |
643 | if(fChambers) delete fChambers; | |
644 | if(GetDebug())Info("CreateChambers","Creating RICH chambers."); | |
645 | fChambers=new TObjArray(kNCH); | |
646 | fChambers->SetOwner(); | |
647 | for(int i=0;i<kNCH;i++) fChambers->AddAt(new AliRICHChamber(i+1,Param()),i); | |
648 | }//void AliRICH::CreateChambers() | |
649 | //__________________________________________________________________________________________________ | |
650 | void AliRICH::GenerateFeedbacks(Int_t iChamber,Float_t eloss) | |
651 | { | |
652 | // Generate FeedBack photons | |
653 | //Determine number of feedback photons | |
654 | TLorentzVector x4; | |
655 | gMC->TrackPosition(x4); | |
656 | Int_t sector; | |
657 | Int_t iTotQdc=Param()->Loc2TotQdc(C(iChamber)->Glob2Loc(x4),eloss,gMC->TrackPid(),sector); | |
658 | Int_t iNphotons=gMC->GetRandom()->Poisson(P()->AlphaFeedback(sector)*iTotQdc); | |
659 | if(GetDebug())Info("GenerateFeedbacks","N photons=%i",iNphotons); | |
660 | Int_t j; | |
661 | Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4]; | |
662 | //Generate photons | |
663 | for(Int_t i=0;i<iNphotons;i++){//feddbacks loop | |
664 | Double_t ranf[2]; | |
665 | gMC->GetRandom()->RndmArray(2,ranf); //Sample direction | |
666 | cthf=ranf[0]*2-1.0; | |
667 | if(cthf<0) continue; | |
668 | sthf = TMath::Sqrt((1 - cthf) * (1 + cthf)); | |
669 | phif = ranf[1] * 2 * TMath::Pi(); | |
670 | ||
671 | if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57) | |
672 | enfp = 7.5e-9; | |
673 | else if(randomNumber<=0.7) | |
674 | enfp = 6.4e-9; | |
675 | else | |
676 | enfp = 7.9e-9; | |
677 | ||
678 | ||
679 | dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif); | |
680 | gMC->Gdtom(dir, mom, 2); | |
681 | mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp; | |
682 | mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]); | |
683 | ||
684 | // Polarisation | |
685 | e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1]; | |
686 | e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0; | |
687 | e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0]; | |
688 | ||
689 | vmod=0; | |
690 | for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; | |
691 | if (!vmod) for(j=0;j<3;j++) { | |
692 | uswop=e1[j]; | |
693 | e1[j]=e3[j]; | |
694 | e3[j]=uswop; | |
695 | } | |
696 | vmod=0; | |
697 | for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; | |
698 | if (!vmod) for(j=0;j<3;j++) { | |
699 | uswop=e2[j]; | |
700 | e2[j]=e3[j]; | |
701 | e3[j]=uswop; | |
702 | } | |
703 | ||
704 | vmod=0; for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e1[j]*=vmod; | |
705 | vmod=0; for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e2[j]*=vmod; | |
706 | ||
707 | phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi(); | |
708 | for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi); | |
709 | gMC->Gdtom(pol, pol, 2); | |
710 | Int_t outputNtracksStored; | |
711 | gAlice->GetMCApp()->PushTrack(1, //do not transport | |
712 | gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track | |
713 | kFeedback, //PID | |
714 | mom[0],mom[1],mom[2],mom[3], //track momentum | |
715 | x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin | |
716 | pol[0],pol[1],pol[2], //polarization | |
717 | kPFeedBackPhoton, | |
718 | outputNtracksStored, | |
719 | 1.0); | |
720 | }//feedbacks loop | |
721 | }//GenerateFeedbacks() | |
722 | //__________________________________________________________________________________________________ |