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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 | ||
17 | #include "AliHMPIDv1.h" //class header | |
18 | #include "AliHMPIDParam.h" //CreateMaterials() | |
19 | #include "AliHMPIDHit.h" //Hits2SDigs(),StepManager() | |
20 | #include "AliHMPIDDigit.h" //CreateMaterials() | |
21 | #include "AliRawReader.h" //Raw2SDigits() | |
22 | #include <TParticle.h> //Hits2SDigits() | |
23 | #include <TRandom.h> | |
24 | #include <TVirtualMC.h> //StepManager() for gMC | |
25 | #include <TPDGCode.h> //StepHistory() | |
26 | #include <AliStack.h> //StepManager(),Hits2SDigits() | |
27 | #include <AliLoader.h> //Hits2SDigits() | |
28 | #include <AliRunLoader.h> //Hits2SDigits() | |
29 | #include <AliConst.h> | |
30 | #include <AliPDG.h> | |
31 | #include <AliMC.h> //StepManager() | |
32 | #include <AliRawDataHeader.h> //Digits2Raw() | |
33 | #include <AliDAQ.h> //Digits2Raw() | |
34 | #include <AliRun.h> //CreateMaterials() | |
35 | #include <AliMagF.h> //CreateMaterials() | |
36 | #include <TGeoManager.h> //CreateGeometry() | |
37 | #include <TMultiGraph.h> //Optics() | |
38 | #include <TGraph.h> //Optics() | |
39 | #include <TLegend.h> //Optics() | |
40 | #include <TCanvas.h> //Optics() | |
41 | #include <TF2.h> //CreateMaterials() | |
42 | #include <AliCDBManager.h> //CreateMaterials() | |
43 | #include <AliCDBEntry.h> //CreateMaterials() | |
44 | ||
45 | ClassImp(AliHMPIDv1) | |
46 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
47 | void AliHMPIDv1::AddAlignableVolumes()const | |
48 | { | |
49 | // Associates the symbolic volume name with the corresponding volume path. Interface methode from AliModule ivoked from AliMC | |
50 | // Arguments: none | |
51 | // Returns: none | |
52 | for(Int_t i=0;i<7;i++) | |
53 | gGeoManager->SetAlignableEntry(Form("/HMPID/Chamber%i",i),Form("ALIC_1/HMPID_%i",i)); | |
54 | } | |
55 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
56 | void AliHMPIDv1::CreateMaterials() | |
57 | { | |
58 | // Definition of available HMPID materials | |
59 | // Arguments: none | |
60 | // Returns: none | |
61 | AliDebug(1,"Start v1 HMPID."); | |
62 | ||
63 | //data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm] | |
64 | Float_t aAir[4]={12,14,16,36} , zAir[4]={6,7,8,18} , wAir[4]={0.000124,0.755267,0.231781,0.012827} , dAir=0.00120479; Int_t nAir=4;//mixture 0.9999999 | |
65 | Float_t aC6F14[2]={ 12.01 , 18.99} , zC6F14[2]={ 6 , 9} , wC6F14[2]={6 , 14} , dC6F14=1.68 ; Int_t nC6F14=-2; | |
66 | Float_t aSiO2[2]={ 28.09 , 15.99} , zSiO2[2]={14 , 8} , wSiO2[2]={1 , 2} , dSiO2=2.64 ; Int_t nSiO2=-2; | |
67 | Float_t aCH4[2]={ 12.01 , 1.01} , zCH4[2]={ 6 , 1} , wCH4[2]={1 , 4} , dCH4=7.17e-4 ; Int_t nCH4=-2; | |
68 | Float_t aCsI[2]={132.90 ,126.90} , zCsI[2]={55 ,53} , wCsI[2]={1 , 1} , dCsI=0.1 ; Int_t nCsI=-2; | |
69 | Float_t aRoha= 12.01 , zRoha= 6 , dRoha= 0.10 , radRoha= 18.80 , absRoha= 86.3/dRoha; //special material- quazi carbon | |
70 | Float_t aCu= 63.55 , zCu= 29 , dCu= 8.96 , radCu= 1.43 , absCu= 134.9/dCu ; | |
71 | Float_t aW=183.84 , zW= 74 , dW= 19.30 , radW= 0.35 , absW= 185.0/dW ; | |
72 | Float_t aAl= 26.98 , zAl= 13 , dAl= 2.70 , radAl= 8.90 , absAl= 106.4/dAl ; | |
73 | ||
74 | Int_t matId=0; //tmp material id number | |
75 | Int_t unsens = 0, sens=1; //sensitive or unsensitive medium | |
76 | Int_t itgfld = gAlice->Field()->Integ(); //type of field intergration 0 no field -1 user in guswim 1 Runge Kutta 2 helix 3 const field along z | |
77 | Float_t maxfld = gAlice->Field()->Max(); //max field value | |
78 | Float_t tmaxfd = -10.0; //max deflection angle due to magnetic field in one step | |
79 | Float_t deemax = - 0.2; //max fractional energy loss in one step | |
80 | Float_t stemax = - 0.1; //mas step allowed [cm] | |
81 | Float_t epsil = 0.001; //abs tracking precision [cm] | |
82 | Float_t stmin = - 0.001; //min step size [cm] in continius process transport, negative value: choose it automatically | |
83 | AliMixture(++matId,"Air" ,aAir ,zAir ,dAir ,nAir ,wAir ); AliMedium(kAir ,"Air" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
84 | AliMixture(++matId,"C6F14",aC6F14,zC6F14,dC6F14,nC6F14,wC6F14); AliMedium(kC6F14,"C6F14",matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
85 | AliMixture(++matId,"SiO2" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kSiO2 ,"SiO2" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
86 | AliMixture(++matId,"CH4" ,aCH4 ,zCH4 ,dCH4 ,nCH4 ,wCH4 ); AliMedium(kCH4 ,"CH4" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
87 | AliMixture(++matId,"CsI" ,aCsI ,zCsI ,dCsI ,nCsI ,wCsI ); AliMedium(kCsI ,"CsI" ,matId, sens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);//sensitive | |
88 | ||
89 | AliMaterial(++matId,"Roha",aRoha,zRoha,dRoha,radRoha,absRoha); AliMedium(kRoha,"Roha", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
90 | AliMaterial(++matId,"Cu" ,aCu ,zCu ,dCu ,radCu ,absCu ); AliMedium(kCu ,"Cu" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
91 | AliMaterial(++matId,"W" ,aW ,zW ,dW ,radW ,absW ); AliMedium(kW ,"W" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
92 | AliMaterial(++matId,"Al" ,aAl ,zAl ,dAl ,radAl ,absAl ); AliMedium(kAl ,"Al" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); | |
93 | ||
94 | AliDebug(1,"Stop v1 HMPID."); | |
95 | ||
96 | TString ttl=GetTitle(); if(!ttl.Contains("ShowOptics")) return; //user didn't aks to plot optical curves | |
97 | ||
98 | const Double_t kWidth=0.25,kHeight=0.2; | |
99 | const Int_t kRadM=24 , kRadC=kRed; | |
100 | const Int_t kWinM=26 , kWinC=kBlue; | |
101 | const Int_t kGapM=25 , kGapC=kGreen; | |
102 | const Int_t kPcM = 2 , kPcC =kMagenta; | |
103 | const Int_t kNbins=30; //number of photon energy points | |
104 | ||
105 | Float_t aEckov [kNbins]; | |
106 | Float_t aAbsRad[kNbins], aAbsWin[kNbins], aAbsGap[kNbins]; | |
107 | Float_t aIdxRad[kNbins], aIdxWin[kNbins], aIdxGap[kNbins]; | |
108 | Float_t aQePc [kNbins]; | |
109 | Float_t aTraRad[kNbins],aTraWin[kNbins],aTraGap[kNbins],aTraTot[kNbins]; | |
110 | for(Int_t i=0;i<kNbins;i++){//calculate probability for photon to survive during transversing a volume of material with absorption length | |
111 | aTraRad[i]=TMath::Exp(-AliHMPIDDigit::SizeRad()/ (aAbsRad[i]+0.0001)); //radiator | |
112 | aTraWin[i]=TMath::Exp(-AliHMPIDDigit::SizeWin()/ (aAbsWin[i] +0.0001)); //window | |
113 | aTraGap[i]=TMath::Exp(-AliHMPIDDigit::SizeGap()/ (aAbsGap[i] +0.0001)); //from window to PC | |
114 | aTraTot[i]=aTraRad[i]*aTraWin[i]*aTraGap[i]*aQePc[i]; | |
115 | } | |
116 | ||
117 | TGraph *pRaAG=new TGraph(kNbins,aEckov,aAbsRad);pRaAG->SetMarkerStyle(kRadM);pRaAG->SetMarkerColor(kRadC); | |
118 | TGraph *pRaIG=new TGraph(kNbins,aEckov,aIdxRad);pRaIG->SetMarkerStyle(kRadM);pRaIG->SetMarkerColor(kRadC); | |
119 | TGraph *pRaTG=new TGraph(kNbins,aEckov,aTraRad);pRaTG->SetMarkerStyle(kRadM);pRaTG->SetMarkerColor(kRadC); | |
120 | ||
121 | TGraph *pWiAG=new TGraph(kNbins,aEckov,aAbsWin);pWiAG->SetMarkerStyle(kWinM);pWiAG->SetMarkerColor(kWinC); | |
122 | TGraph *pWiIG=new TGraph(kNbins,aEckov,aIdxWin);pWiIG->SetMarkerStyle(kWinM);pWiIG->SetMarkerColor(kWinC); | |
123 | TGraph *pWiTG=new TGraph(kNbins,aEckov,aTraWin);pWiTG->SetMarkerStyle(kWinM);pWiTG->SetMarkerColor(kWinC); | |
124 | ||
125 | TGraph *pGaAG=new TGraph(kNbins,aEckov,aAbsGap);pGaAG->SetMarkerStyle(kGapM);pGaAG->SetMarkerColor(kGapC); | |
126 | TGraph *pGaIG=new TGraph(kNbins,aEckov,aIdxGap);pGaIG->SetMarkerStyle(kGapM);pGaIG->SetMarkerColor(kGapC); | |
127 | TGraph *pGaTG=new TGraph(kNbins,aEckov,aTraGap);pGaTG->SetMarkerStyle(kGapM);pGaTG->SetMarkerColor(kGapC); | |
128 | ||
129 | TGraph *pQeG =new TGraph(kNbins,aEckov,aQePc); pQeG ->SetMarkerStyle(kPcM );pQeG->SetMarkerColor(kPcC); | |
130 | TGraph *pToG =new TGraph(kNbins,aEckov,aTraTot);pToG ->SetMarkerStyle(30) ;pToG->SetMarkerColor(kYellow); | |
131 | ||
132 | TMultiGraph *pIdxMG=new TMultiGraph("idx","Ref index;E_{#check{C}} [GeV]"); | |
133 | TMultiGraph *pAbsMG=new TMultiGraph("abs","Absorption [cm];E_{#check{C}} [GeV]"); | |
134 | TMultiGraph *pTraMG=new TMultiGraph("tra","Transmission;E_{#check{C}} [GeV]"); TLegend *pTraLe=new TLegend(0.2,0.4,0.2+kWidth,0.4+kHeight); | |
135 | pAbsMG->Add(pRaAG); pIdxMG->Add(pRaIG); pTraMG->Add(pRaTG); pTraLe->AddEntry(pRaTG, "Rad", "p"); | |
136 | pAbsMG->Add(pWiAG); pIdxMG->Add(pWiIG); pTraMG->Add(pWiTG); pTraLe->AddEntry(pWiTG, "Win", "p"); | |
137 | pAbsMG->Add(pGaAG); pIdxMG->Add(pGaIG); pTraMG->Add(pGaTG); pTraLe->AddEntry(pGaTG, "Gap", "p"); | |
138 | pTraMG->Add(pToG); pTraLe->AddEntry(pToG, "Tot", "p"); | |
139 | pTraMG->Add(pQeG); pTraLe->AddEntry(pQeG, "QE" , "p"); | |
140 | TCanvas *pC=new TCanvas("c1","HMPID optics to check",1100,900); pC->Divide(2,2); | |
141 | pC->cd(1); pIdxMG->Draw("AP"); | |
142 | pC->cd(2); gPad->SetLogy(); pAbsMG->Draw("AP"); | |
143 | pC->cd(3); pTraLe->Draw(); | |
144 | pC->cd(4); pTraMG->Draw("AP"); | |
145 | }//void AliHMPID::CreateMaterials() | |
146 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
147 | void AliHMPIDv1::CreateGeometry() | |
148 | { | |
149 | //Creates detailed geometry simulation (currently GEANT volumes tree) | |
150 | AliDebug(1,"Start main."); | |
151 | if(!gMC->IsRootGeometrySupported()) return; | |
152 | ||
153 | Double_t cm=1,mm=0.1*cm,mkm=0.001*mm,dx,dy,dz;//default is cm | |
154 | ||
155 | TGeoVolume *pRich=gGeoManager->MakeBox("HMPID",gGeoManager->GetMedium("HMPID_CH4"),dx=(6*mm+1681*mm+6*mm)/2, //main HMPID volume | |
156 | dy=(6*mm+1466*mm+6*mm)/2, | |
157 | dz=(80*mm+40*mm)*2/2); //x,y taken from 2033P1 z from p84 TDR | |
158 | const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad | |
159 | const Double_t kAngVer=20; // vertical angle between chambers 20 grad | |
160 | const Double_t kAngCom=30; // common HMPID rotation with respect to x axis 30 grad | |
161 | const Double_t trans[3]={490,0,0}; //center of the chamber is on window-gap surface | |
162 | for(Int_t iCh=0;iCh<7;iCh++){//place 7 chambers | |
163 | TGeoHMatrix *pMatrix=new TGeoHMatrix; | |
164 | pMatrix->RotateY(90); //rotate around y since initial position is in XY plane -> now in YZ plane | |
165 | pMatrix->SetTranslation(trans); //now plane in YZ is shifted along x | |
166 | switch(iCh){ | |
167 | case 0: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down | |
168 | case 1: pMatrix->RotateZ(-kAngVer); break; //down | |
169 | case 2: pMatrix->RotateY(kAngHor); break; //right | |
170 | case 3: break; //no rotation | |
171 | case 4: pMatrix->RotateY(-kAngHor); break; //left | |
172 | case 5: pMatrix->RotateZ(kAngVer); break; //up | |
173 | case 6: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up | |
174 | } | |
175 | pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane | |
176 | gGeoManager->GetVolume("ALIC")->AddNode(pRich,iCh,pMatrix); | |
177 | } | |
178 | ||
179 | Float_t par[3]; | |
180 | Int_t matrixIdReturn=0; //matrix id returned by AliMatrix | |
181 | //Pad Panel frame 6 sectors | |
182 | par[0]=648*mm/2;par[1]= 411*mm/2;par[2]=40 *mm/2;gMC->Gsvolu("Rppf" ,"BOX ",(*fIdtmed)[kAl] ,par,3);//PPF 2001P2 inner size of the slab by 1mm more | |
183 | par[0]=181*mm/2;par[1]=89.25*mm/2;par[2]=38.3*mm/2;gMC->Gsvolu("RppfLarge","BOX ",(*fIdtmed)[kAir] ,par,3);//large whole | |
184 | par[0]=114*mm/2;par[1]=89.25*mm/2;par[2]=38.3*mm/2;gMC->Gsvolu("RppfSmall","BOX ",(*fIdtmed)[kAir] ,par,3);//small whole | |
185 | par[0]=644*mm/2;par[1]= 407*mm/2;par[2]= 1.7*mm/2;gMC->Gsvolu("Rpc" ,"BOX ",(*fIdtmed)[kCsI] ,par,3);//by 0.2 mm more then actual size (PCB 2006P1) | |
186 | ||
187 | gMC->Gspos("Rppf",0,"HMPID", -335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY");//F1 2040P1 z p.84 TDR | |
188 | gMC->Gspos("Rppf",1,"HMPID", +335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY"); | |
189 | gMC->Gspos("Rppf",2,"HMPID", -335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY"); | |
190 | gMC->Gspos("Rppf",3,"HMPID", +335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY"); | |
191 | gMC->Gspos("Rppf",4,"HMPID", -335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY"); | |
192 | gMC->Gspos("Rppf",5,"HMPID", +335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY"); | |
193 | gMC->Gspos("Rpc" ,1,"Rppf", 0*mm, 0*mm, -19.15*mm, 0,"ONLY");//PPF 2001P2 | |
194 | gMC->Gspos("RppfLarge",1,"Rppf", -224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); | |
195 | gMC->Gspos("RppfLarge",2,"Rppf", -224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); | |
196 | gMC->Gspos("RppfLarge",3,"Rppf", -224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); | |
197 | gMC->Gspos("RppfLarge",4,"Rppf", -224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); | |
198 | gMC->Gspos("RppfSmall",1,"Rppf", - 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); | |
199 | gMC->Gspos("RppfSmall",2,"Rppf", - 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); | |
200 | gMC->Gspos("RppfSmall",3,"Rppf", - 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); | |
201 | gMC->Gspos("RppfSmall",4,"Rppf", - 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); | |
202 | gMC->Gspos("RppfSmall",5,"Rppf", + 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); | |
203 | gMC->Gspos("RppfSmall",6,"Rppf", + 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); | |
204 | gMC->Gspos("RppfSmall",7,"Rppf", + 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); | |
205 | gMC->Gspos("RppfSmall",8,"Rppf", + 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); | |
206 | gMC->Gspos("RppfLarge",5,"Rppf", +224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); | |
207 | gMC->Gspos("RppfLarge",6,"Rppf", +224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); | |
208 | gMC->Gspos("RppfLarge",7,"Rppf", +224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); | |
209 | gMC->Gspos("RppfLarge",8,"Rppf", +224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); | |
210 | //Gap - anod wires 6 copies to HMPID | |
211 | par[0]=648*mm/2;par[1]= 411*mm/2 ;par[2]=4.45*mm/2;gMC->Gsvolu("Rgap","BOX ",(*fIdtmed)[kCH4] ,par,3);//xy as PPF 2001P2 z WP 2099P1 | |
212 | par[0]= 0*mm ;par[1]= 20*mkm/2 ;par[2]= 648*mm/2;gMC->Gsvolu("Rano","TUBE",(*fIdtmed)[kW] ,par,3);//WP 2099P1 z = gap x PPF 2001P2 | |
213 | AliMatrix(matrixIdReturn,180,0, 90,90, 90,0); //wires along x | |
214 | ||
215 | gMC->Gspos("Rgap",0,"HMPID", -335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY"); //F1 2040P1 z WP 2099P1 | |
216 | gMC->Gspos("Rgap",1,"HMPID", +335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY"); | |
217 | gMC->Gspos("Rgap",2,"HMPID", -335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY"); | |
218 | gMC->Gspos("Rgap",3,"HMPID", +335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY"); | |
219 | gMC->Gspos("Rgap",4,"HMPID", -335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY"); | |
220 | gMC->Gspos("Rgap",5,"HMPID", +335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY"); | |
221 | for(int i=1;i<=96;i++) | |
222 | gMC->Gspos("Rano",i,"Rgap", 0*mm, -411/2*mm+i*4*mm, 0.185*mm, matrixIdReturn,"ONLY"); //WP 2099P1 | |
223 | //Defines radiators geometry | |
224 | par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 24*mm/2; gMC->Gsvolu("Rrad" ,"BOX ",(*fIdtmed)[kC6F14] ,par,3); // Rad 2011P1 | |
225 | par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 4*mm/2; gMC->Gsvolu("RradFront" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //front | |
226 | par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 5*mm/2; gMC->Gsvolu("RradWin" ,"BOX ",(*fIdtmed)[kSiO2] ,par,3); //window | |
227 | par[0]=1330*mm/2 ;par[1]= 5*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradLong" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //long side | |
228 | par[0]= 10*mm/2 ;par[1]= 403*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradShort" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //short side | |
229 | par[0]= 0 ;par[1]= 10*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradSpacer","TUBE",(*fIdtmed)[kSiO2] ,par,3); //spacer | |
230 | ||
231 | gMC->Gspos("Rrad",1,"HMPID", 0*mm,-434*mm, -12*mm, 0,"ONLY"); //3 radiators to HMPID | |
232 | gMC->Gspos("Rrad",2,"HMPID", 0*mm, 0*mm, -12*mm, 0,"ONLY"); | |
233 | gMC->Gspos("Rrad",3,"HMPID", 0*mm,+434*mm, -12*mm, 0,"ONLY"); | |
234 | gMC->Gspos("RradFront",1,"Rrad", 0*mm, 0*mm, -10.0*mm, 0,"ONLY"); //front cover | |
235 | gMC->Gspos("RradWin" ,1,"Rrad", 0*mm, 0*mm, 9.5*mm, 0,"ONLY"); //quartz window (back cover) | |
236 | gMC->Gspos("RradLong" ,1,"Rrad", 0*mm,-204*mm, -0.5*mm, 0,"ONLY"); //long side | |
237 | gMC->Gspos("RradLong" ,2,"Rrad", 0*mm,+204*mm, -0.5*mm, 0,"ONLY"); //long side | |
238 | gMC->Gspos("RradShort",1,"Rrad",-660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side | |
239 | gMC->Gspos("RradShort",2,"Rrad",+660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side | |
240 | for(int i=0;i<3;i++) | |
241 | for(int j=0;j<10;j++) | |
242 | gMC->Gspos("RradSpacer",10*i+j,"Rrad",-1330*mm/2+116*mm+j*122*mm,(i-1)*105*mm,-0.5*mm,0,"ONLY");//spacers | |
243 | //Defines SandBox geometry | |
244 | par[0]=1419*mm/2 ;par[1]=1378*mm/2;par[2]=50.5*mm/2; gMC->Gsvolu("Rsb" ,"BOX ",(*fIdtmed)[kAir] ,par,3); //2072P1 | |
245 | par[0]=1419*mm/2 ;par[1]=1378*mm/2;par[2]= 0.5*mm/2; gMC->Gsvolu("RsbCover","BOX ",(*fIdtmed)[kAl] ,par,3); //cover | |
246 | par[0]=1359*mm/2 ;par[1]=1318*mm/2;par[2]=49.5*mm/2; gMC->Gsvolu("RsbComb" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //honeycomb structure | |
247 | ||
248 | gMC->Gspos("Rsb",1,"HMPID", 0*mm, 0*mm, -73.75*mm, 0,"ONLY"); //p.84 TDR sandbox to rich | |
249 | gMC->Gspos("RsbComb" ,1,"Rsb", 0*mm, 0*mm, 0*mm, 0,"ONLY"); //2072P1 honeycomv to sandbox | |
250 | gMC->Gspos("RsbCover",1,"Rsb", 0*mm, 0*mm, +25*mm, 0,"ONLY"); //cover to sandbox | |
251 | gMC->Gspos("RsbCover",2,"Rsb", 0*mm, 0*mm, -25*mm, 0,"ONLY"); //cover to sandbox | |
252 | AliDebug(1,"Stop v1. HMPID option"); | |
253 | }//CreateGeometry() | |
254 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
255 | void AliHMPIDv1::Init() | |
256 | { | |
257 | // This methode defines ID for sensitive volumes, i.e. such geometry volumes for which there are if(gMC->CurrentVolID()==XXX) statements in StepManager() | |
258 | // Arguments: none | |
259 | // Returns: none | |
260 | AliDebug(1,"Start v1 HMPID."); | |
261 | fIdRad = gMC->VolId("Rrad"); | |
262 | fIdWin = gMC->VolId("RradWin"); | |
263 | fIdPc = gMC->VolId("Rpc"); | |
264 | fIdAmpGap = gMC->VolId("Rgap"); | |
265 | fIdProxGap = gMC->VolId("Rgap"); | |
266 | const Int_t kNbins=30; //number of photon energy points | |
267 | Float_t emin=5.5,emax=8.5; //Photon energy range,[eV] | |
268 | Float_t aEckov [kNbins]; | |
269 | Float_t aAbsRad[kNbins], aAbsWin[kNbins], aAbsGap[kNbins], aAbsMet[kNbins]; | |
270 | Float_t aIdxRad[kNbins], aIdxWin[kNbins], aIdxGap[kNbins], aIdxMet[kNbins], aIdxPc[kNbins]; | |
271 | Float_t aQeAll [kNbins], aQePc [kNbins]; | |
272 | ||
273 | TF2 *pRaIF=new TF2("RidxRad","sqrt(1+0.554*(1239.84/x)^2/((1239.84/x)^2-5796)-0.0005*(y-20))" ,emin,emax,0,50); //DiMauro mail temp 0-50 degrees C | |
274 | TF1 *pWiIF=new TF1("RidxWin","sqrt(1+46.411/(10.666*10.666-x*x)+228.71/(18.125*18.125-x*x))" ,emin,emax); //SiO2 idx TDR p.35 | |
275 | TF1 *pGaIF=new TF1("RidxGap","1+0.12489e-6/(2.62e-4 - x*x/1239.84/1239.84)" ,emin,emax); //?????? from where | |
276 | ||
277 | TF1 *pRaAF=new TF1("RabsRad","(x<7.8)*(gaus+gaus(3))+(x>=7.8)*0.0001" ,emin,emax); //fit from DiMauro data 28.10.03 | |
278 | pRaAF->SetParameters(3.20491e16,-0.00917890,0.742402,3035.37,4.81171,0.626309); | |
279 | TF1 *pWiAF=new TF1("RabsWin","(x<8.2)*(818.8638-301.0436*x+36.89642*x*x-1.507555*x*x*x)+(x>=8.2)*0.0001" ,emin,emax); //fit from DiMauro data 28.10.03 | |
280 | TF1 *pGaAF=new TF1("RabsGap","(x<7.75)*6512.399+(x>=7.75)*3.90743e-2/(-1.655279e-1+6.307392e-2*x-8.011441e-3*x*x+3.392126e-4*x*x*x)",emin,emax); //????? from where | |
281 | ||
282 | TF1 *pQeF =new TF1("Qe" ,"0+(x>6.07267)*0.344811*(1-exp(-1.29730*(x-6.07267)))" ,emin,emax); //fit from DiMauro data 28.10.03 | |
283 | ||
284 | for(Int_t i=0;i<kNbins;i++){ | |
285 | Float_t eV=emin+0.1*i; //Ckov energy in eV | |
286 | aEckov [i] =1e-9*eV; //Ckov energy in GeV | |
287 | aAbsRad[i]=pRaAF->Eval(eV); aIdxRad[i]=1.292;//pRaIF->Eval(eV,20); //Simulation for 20 degress C | |
288 | aAbsWin[i]=pWiAF->Eval(eV); aIdxWin[i]=1.5787;//pWiIF->Eval(eV); | |
289 | aAbsGap[i]=pGaAF->Eval(eV); aIdxGap[i]=1.0005;//pGaIF->Eval(eV); aQeAll[i] =1; //QE for all other materials except for PC must be 1. | |
290 | aAbsMet[i] =0.0001; aIdxMet[i]=0; //metal ref idx must be 0 in order to reflect photon | |
291 | aIdxPc [i]=1; aQePc [i]=pQeF->Eval(eV); //PC ref idx must be 1 in order to apply photon to QE conversion | |
292 | ||
293 | } | |
294 | gMC->SetCerenkov((*fIdtmed)[kC6F14] , kNbins, aEckov, aAbsRad , aQeAll , aIdxRad ); | |
295 | gMC->SetCerenkov((*fIdtmed)[kSiO2] , kNbins, aEckov, aAbsWin , aQeAll , aIdxWin ); | |
296 | gMC->SetCerenkov((*fIdtmed)[kCH4] , kNbins, aEckov, aAbsGap , aQeAll , aIdxGap ); | |
297 | gMC->SetCerenkov((*fIdtmed)[kCu] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet ); | |
298 | gMC->SetCerenkov((*fIdtmed)[kW] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet ); //n=0 means reflect photons | |
299 | gMC->SetCerenkov((*fIdtmed)[kCsI] , kNbins, aEckov, aAbsMet , aQePc , aIdxPc ); //n=1 means convert photons | |
300 | gMC->SetCerenkov((*fIdtmed)[kAl] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet ); | |
301 | delete pRaAF;delete pWiAF;delete pGaAF; delete pRaIF; delete pWiIF; delete pGaIF; delete pQeF; | |
302 | ||
303 | AliDebug(1,"Stop v1 HMPID."); | |
304 | } | |
305 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
306 | Bool_t AliHMPIDv1::IsLostByFresnel() | |
307 | { | |
308 | // Calculate probability for the photon to be lost by Fresnel reflection. | |
309 | TLorentzVector p4; | |
310 | Double_t mom[3],localMom[3]; | |
311 | gMC->TrackMomentum(p4); mom[0]=p4(1); mom[1]=p4(2); mom[2]=p4(3); | |
312 | localMom[0]=0; localMom[1]=0; localMom[2]=0; | |
313 | gMC->Gmtod(mom,localMom,2); | |
314 | Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2]; | |
315 | Double_t localTheta = TMath::ATan2(TMath::Sqrt(localTc),localMom[1]); | |
316 | Double_t cotheta = TMath::Abs(TMath::Cos(localTheta)); | |
317 | if(gMC->GetRandom()->Rndm() < Fresnel(p4.E()*1e9,cotheta,1)){ | |
318 | AliDebug(1,"Photon lost"); | |
319 | return kTRUE; | |
320 | }else | |
321 | return kFALSE; | |
322 | }//IsLostByFresnel() | |
323 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
324 | void AliHMPIDv1::GenFee(Int_t iCh,Float_t eloss) | |
325 | { | |
326 | // Generate FeedBack photons for the current particle. To be invoked from StepManager(). | |
327 | // eloss=0 means photon so only pulse height distribution is to be analysed. This one is done in AliHMPIDParam::TotQdc() | |
328 | TLorentzVector x4; | |
329 | gMC->TrackPosition(x4); | |
330 | Int_t iNphotons=gMC->GetRandom()->Poisson(0.02*200); eloss++; iCh++; //?????????????????????? | |
331 | AliDebug(1,Form("N photons=%i",iNphotons)); | |
332 | Int_t j; | |
333 | Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4]; | |
334 | //Generate photons | |
335 | for(Int_t i=0;i<iNphotons;i++){//feedbacks loop | |
336 | Double_t ranf[2]; | |
337 | gMC->GetRandom()->RndmArray(2,ranf); //Sample direction | |
338 | cthf=ranf[0]*2-1.0; | |
339 | if(cthf<0) continue; | |
340 | sthf = TMath::Sqrt((1 - cthf) * (1 + cthf)); | |
341 | phif = ranf[1] * 2 * TMath::Pi(); | |
342 | ||
343 | if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57) | |
344 | enfp = 7.5e-9; | |
345 | else if(randomNumber<=0.7) | |
346 | enfp = 6.4e-9; | |
347 | else | |
348 | enfp = 7.9e-9; | |
349 | ||
350 | ||
351 | dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif); | |
352 | gMC->Gdtom(dir, mom, 2); | |
353 | mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp; | |
354 | mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]); | |
355 | ||
356 | // Polarisation | |
357 | e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1]; | |
358 | e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0; | |
359 | e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0]; | |
360 | ||
361 | vmod=0; | |
362 | for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; | |
363 | if (!vmod) for(j=0;j<3;j++) { | |
364 | uswop=e1[j]; | |
365 | e1[j]=e3[j]; | |
366 | e3[j]=uswop; | |
367 | } | |
368 | vmod=0; | |
369 | for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; | |
370 | if (!vmod) for(j=0;j<3;j++) { | |
371 | uswop=e2[j]; | |
372 | e2[j]=e3[j]; | |
373 | e3[j]=uswop; | |
374 | } | |
375 | ||
376 | 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; | |
377 | 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; | |
378 | ||
379 | phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi(); | |
380 | for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi); | |
381 | gMC->Gdtom(pol, pol, 2); | |
382 | Int_t outputNtracksStored; | |
383 | gAlice->GetMCApp()->PushTrack(1, //transport | |
384 | gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track | |
385 | kFeedback, //PID | |
386 | mom[0],mom[1],mom[2],mom[3], //track momentum | |
387 | x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin | |
388 | pol[0],pol[1],pol[2], //polarization | |
389 | kPFeedBackPhoton, //process ID | |
390 | outputNtracksStored, //on return how many new photons stored on stack | |
391 | 1.0); //weight | |
392 | }//feedbacks loop | |
393 | AliDebug(1,"Stop."); | |
394 | }//GenerateFeedbacks() | |
395 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
396 | void AliHMPIDv1::Hits2SDigits() | |
397 | { | |
398 | // Interface methode ivoked from AliSimulation to create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits. | |
399 | // Arguments: none | |
400 | // Returns: none | |
401 | AliDebug(1,"Start."); | |
402 | for(Int_t iEvt=0;iEvt < GetLoader()->GetRunLoader()->GetNumberOfEvents();iEvt++){ //events loop | |
403 | GetLoader()->GetRunLoader()->GetEvent(iEvt); //get next event | |
404 | ||
405 | if(!GetLoader()->TreeH()) {GetLoader()->LoadHits(); } | |
406 | if(!GetLoader()->TreeS()) {GetLoader()->MakeTree("S"); MakeBranch("S");}//to | |
407 | ||
408 | for(Int_t iPrimN=0;iPrimN<GetLoader()->TreeH()->GetEntries();iPrimN++){//prims loop | |
409 | GetLoader()->TreeH()->GetEntry(iPrimN); | |
410 | Hit2Sdi(Hits(),SdiLst()); | |
411 | }//prims loop | |
412 | GetLoader()->TreeS()->Fill(); | |
413 | GetLoader()->WriteSDigits("OVERWRITE"); | |
414 | SdiReset(); | |
415 | }//events loop | |
416 | GetLoader()->UnloadHits(); | |
417 | GetLoader()->UnloadSDigits(); | |
418 | AliDebug(1,"Stop."); | |
419 | }//Hits2SDigits() | |
420 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
421 | void AliHMPIDv1::Hit2Sdi(TClonesArray *pHitLst,TClonesArray *pSdiLst) | |
422 | { | |
423 | // Converts list of hits to list of sdigits. For each hit in a loop the following steps are done: | |
424 | // - calcultion of the total charge induced by the hit | |
425 | // - determination of the pad contaning the hit and shifting hit y position to the nearest anod wire y | |
426 | // - defining a set of pads affected (up to 9 including the hitted pad) | |
427 | // - calculating charge induced to all those pads using integrated Mathieson distribution and creating sdigit | |
428 | // Arguments: pHitLst - list of hits provided not empty | |
429 | // pSDigLst - list of sdigits where to store the results | |
430 | // Returns: none | |
431 | for(Int_t iHit=0;iHit<pHitLst->GetEntries();iHit++){ //hits loop | |
432 | AliHMPIDHit *pHit=(AliHMPIDHit*)pHitLst->At(iHit); //get pointer to current hit | |
433 | AliHMPIDDigit::Hit2Sdi(pHit,pSdiLst); //convert this hit to list of sdigits | |
434 | }//hits loop loop | |
435 | }//Hits2SDigs() for TVector2 | |
436 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
437 | void AliHMPIDv1::Digits2Raw() | |
438 | { | |
439 | // Creates raw data files in DDL format. Invoked by AliSimulation where loop over events is done | |
440 | // Arguments: none | |
441 | // Returns: none | |
442 | AliDebug(1,"Start."); | |
443 | GetLoader()->LoadDigits(); | |
444 | TTree * treeD = GetLoader()->TreeD(); | |
445 | if(!treeD) { | |
446 | AliError("No digits tree!"); | |
447 | return; | |
448 | } | |
449 | treeD->GetEntry(0); | |
450 | ||
451 | ofstream file[AliHMPIDDigit::kNddls]; //output streams | |
452 | Int_t cnt[AliHMPIDDigit::kNddls]; //data words counters for DDLs | |
453 | AliRawDataHeader header; //empty DDL header | |
454 | UInt_t w32=0; //32 bits data word | |
455 | ||
456 | for(Int_t i=0;i<AliHMPIDDigit::kNddls;i++){ | |
457 | file[i].open(AliDAQ::DdlFileName(GetName(),i)); //open all 14 DDL in parallel | |
458 | file[i].write((char*)&header,sizeof(header)); //write dummy header as place holder, actual will be written later when total size of DDL is known | |
459 | cnt[i]=0; //reset counters | |
460 | } | |
461 | ||
462 | for(Int_t iCh=0;iCh<7;iCh++) | |
463 | for(Int_t iDig=0;iDig<DigLst(iCh)->GetEntriesFast();iDig++){//digits loop for a given chamber | |
464 | AliHMPIDDigit *pDig=(AliHMPIDDigit*)DigLst(iCh)->At(iDig); | |
465 | Int_t ddl=pDig->Raw(w32); //ddl is 0..13 | |
466 | file[ddl].write((char*)&w32,sizeof(w32)); cnt[ddl]++;//write formated digit to the propriate file (as decided in Dig2Raw) and increment corresponding counter | |
467 | }//digits | |
468 | ||
469 | ||
470 | for(Int_t i=0;i<AliHMPIDDigit::kNddls;i++){ | |
471 | header.fSize=sizeof(header)+cnt[i]*sizeof(w32); //now calculate total number of bytes for each DDL file | |
472 | header.SetAttribute(0); | |
473 | file[i].seekp(0); file[i].write((char*)&header,sizeof(header));//rewrite DDL header with fSize field properly set | |
474 | file[i].close(); //close DDL file | |
475 | } | |
476 | GetLoader()->UnloadDigits(); | |
477 | AliDebug(1,"Stop."); | |
478 | }//Digits2Raw() | |
479 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
480 | Float_t AliHMPIDv1::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola) | |
481 | { | |
482 | // Correction for Fresnel ??????????? | |
483 | // Arguments: ene - photon energy [GeV], | |
484 | // PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.) | |
485 | // Returns: | |
486 | 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, | |
487 | 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, | |
488 | 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5}; | |
489 | Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05, | |
490 | 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11, | |
491 | 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95, | |
492 | 1.72,1.53}; | |
493 | Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543, | |
494 | 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878, | |
495 | 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824, | |
496 | 1.714,1.498}; | |
497 | Float_t xe=ene; | |
498 | Int_t j=Int_t(xe*10)-49; | |
499 | Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]); | |
500 | Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]); | |
501 | ||
502 | //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR | |
503 | //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197 | |
504 | ||
505 | Float_t sinin=TMath::Sqrt(1-pdoti*pdoti); | |
506 | Float_t tanin=sinin/pdoti; | |
507 | ||
508 | Float_t c1=cn*cn-ck*ck-sinin*sinin; | |
509 | Float_t c2=4*cn*cn*ck*ck; | |
510 | Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1)); | |
511 | Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1); | |
512 | ||
513 | Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2); | |
514 | Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2); | |
515 | ||
516 | ||
517 | //CORRECTION FACTOR FOR SURFACE ROUGHNESS | |
518 | //B.J. STAGG APPLIED OPTICS, 30(1991),4113 | |
519 | ||
520 | Float_t sigraf=18.; | |
521 | Float_t lamb=1240/ene; | |
522 | Float_t fresn; | |
523 | ||
524 | Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb)); | |
525 | ||
526 | if(pola) | |
527 | { | |
528 | Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S | |
529 | fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr)); | |
530 | } | |
531 | else | |
532 | fresn=0.5*(rp+rs); | |
533 | ||
534 | fresn = fresn*rO; | |
535 | return fresn; | |
536 | }//Fresnel() | |
537 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
538 | void AliHMPIDv1::Print(Option_t *option)const | |
539 | { | |
540 | // Debug printout | |
541 | TObject::Print(option); | |
542 | }//void AliHMPID::Print(Option_t *option)const | |
543 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
544 | Bool_t AliHMPIDv1::Raw2SDigits(AliRawReader *pRR) | |
545 | { | |
546 | // Interface methode ivoked from AliSimulation to create a list of sdigits from raw digits. Events loop is done in AliSimulation | |
547 | // Arguments: pRR- raw reader | |
548 | // Returns: kTRUE on success (currently ignored in AliSimulation::ConvertRaw2SDigits()) | |
549 | AliHMPIDDigit sdi; //tmp sdigit, raw digit will be converted to it | |
550 | ||
551 | if(!GetLoader()->TreeS()) {MakeTree("S"); MakeBranch("S");} | |
552 | ||
553 | TClonesArray *pSdiLst=SdiLst(); Int_t iSdiCnt=0; //tmp list of sdigits for all chambers | |
554 | pRR->Select("HMPID",0,13);//select all HMPID DDL files | |
555 | UInt_t w32=0; | |
556 | while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files) | |
557 | UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13 | |
558 | sdi.Raw(ddl,w32); | |
559 | new((*pSdiLst)[iSdiCnt++]) AliHMPIDDigit(sdi); //add this digit to the tmp list | |
560 | }//raw records loop | |
561 | GetLoader()->TreeS()->Fill(); GetLoader()->WriteSDigits("OVERWRITE");//write out sdigits | |
562 | SdiReset(); | |
563 | return kTRUE; | |
564 | }//Raw2SDigits | |
565 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
566 | void AliHMPIDv1::StepCount() | |
567 | { | |
568 | // Count number of ckovs created | |
569 | } | |
570 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
571 | void AliHMPIDv1::StepHistory() | |
572 | { | |
573 | // This methode is invoked from StepManager() in order to print out | |
574 | static Int_t iStepN; | |
575 | const char *sParticle; | |
576 | switch(gMC->TrackPid()){ | |
577 | case kProton: sParticle="PROTON" ;break; | |
578 | case kNeutron: sParticle="neutron" ;break; | |
579 | case kGamma: sParticle="gamma" ;break; | |
580 | case kCerenkov: sParticle="CKOV" ;break; | |
581 | case kPi0: sParticle="Pi0" ;break; | |
582 | case kPiPlus: sParticle="Pi+" ;break; | |
583 | case kPiMinus: sParticle="Pi-" ;break; | |
584 | case kElectron: sParticle="electron" ;break; | |
585 | default: sParticle="not known" ;break; | |
586 | } | |
587 | ||
588 | TString flag="fanny combination"; | |
589 | if(gMC->IsTrackAlive()) | |
590 | if(gMC->IsTrackEntering()) flag="enters to"; | |
591 | else if(gMC->IsTrackExiting()) flag="exits from"; | |
592 | else if(gMC->IsTrackInside()) flag="inside"; | |
593 | else | |
594 | if(gMC->IsTrackStop()) flag="stoped in"; | |
595 | ||
596 | Int_t vid=0,copy=0; | |
597 | TString path=gMC->CurrentVolName(); path.Prepend("-");path.Prepend(gMC->CurrentVolOffName(1));//current volume and his mother are always there | |
598 | vid=gMC->CurrentVolOffID(2,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));} | |
599 | vid=gMC->CurrentVolOffID(3,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));} | |
600 | ||
601 | Printf("Step %i: %s (%i) %s %s m=%.6f GeV q=%.1f dEdX=%.4f",iStepN,sParticle,gMC->TrackPid(),flag.Data(),path.Data(),gMC->TrackMass(),gMC->TrackCharge(),gMC->Edep()*1e9); | |
602 | ||
603 | Printf("Step %i: tid=%i flags alive=%i disap=%i enter=%i exit=%i inside=%i out=%i stop=%i new=%i", | |
604 | iStepN, gAlice->GetMCApp()->GetCurrentTrackNumber(), | |
605 | gMC->IsTrackAlive(), gMC->IsTrackDisappeared(),gMC->IsTrackEntering(), gMC->IsTrackExiting(), | |
606 | gMC->IsTrackInside(),gMC->IsTrackOut(), gMC->IsTrackStop(), gMC->IsNewTrack()); | |
607 | ||
608 | Float_t a,z,den,rad,abs; a=z=den=rad=abs=-1; | |
609 | Int_t mid=gMC->CurrentMaterial(a,z,den,rad,abs); | |
610 | Printf("Step %i: id=%i a=%7.2f z=%7.2f den=%9.4f rad=%9.2f abs=%9.2f\n\n",iStepN,mid,a,z,den,rad,abs); | |
611 | iStepN++; | |
612 | }//StepHistory() | |
613 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
614 | void AliHMPIDv1::StepManager() | |
615 | { | |
616 | // Full Step Manager. | |
617 | // Arguments: none | |
618 | // Returns: none | |
619 | // StepHistory(); return; //uncomment to print tracks history | |
620 | // StepCount(); return; //uncomment to count photons | |
621 | ||
622 | Int_t copy; //volume copy aka node | |
623 | ||
624 | //Treat photons | |
625 | if((gMC->TrackPid()==kCerenkov||gMC->TrackPid()==kFeedback)&&gMC->CurrentVolID(copy)==fIdPc){ //photon (Ckov or feedback) hit PC (fIdPc) | |
626 | if(gMC->Edep()>0){ //photon survided QE test i.e. produces electron | |
627 | if(IsLostByFresnel()){ gMC->StopTrack(); return;} //photon lost due to fersnel reflection on PC | |
628 | gMC->CurrentVolOffID(2,copy); //current chamber since geomtry tree is HMPID-Rppf-Rpc | |
629 | Int_t tid= gMC->GetStack()->GetCurrentTrackNumber(); //take TID | |
630 | Int_t pid= gMC->TrackPid(); //take PID | |
631 | Float_t etot= gMC->Etot(); //total hpoton energy, [GeV] | |
632 | Double_t x[3]; gMC->TrackPosition(x[0],x[1],x[2]); //take MARS position at entrance to PC | |
633 | Float_t xl,yl; AliHMPIDParam::Instance()->Mars2Lors(copy,x,xl,yl); //take LORS position | |
634 | new((*fHits)[fNhits++])AliHMPIDHit(copy,etot,pid,tid,xl,yl,x); //HIT for photon, position at PC | |
635 | GenFee(copy); //generate feedback photons | |
636 | }//photon hit PC and DE >0 | |
637 | }//photon hit PC | |
638 | ||
639 | //Treat charged particles | |
640 | static Double_t dEdX; //need to store mip parameters between different steps | |
641 | static Double_t in[3]; | |
642 | if(gMC->TrackCharge() && gMC->CurrentVolID(copy)==fIdAmpGap){ //charged particle in amplification gap (fIdAmpGap) | |
643 | if(gMC->IsTrackEntering()||gMC->IsNewTrack()) { //entering or newly created | |
644 | dEdX=0; //reset dEdX collector | |
645 | gMC->TrackPosition(in[0],in[1],in[2]); //take position at the entrance | |
646 | }else if(gMC->IsTrackExiting()||gMC->IsTrackStop()||gMC->IsTrackDisappeared()){ //exiting or disappeared | |
647 | dEdX +=gMC->Edep(); //take into account last step dEdX | |
648 | gMC->CurrentVolOffID(1,copy); //take current chamber since geometry tree is HMPID-Rgap | |
649 | Int_t tid= gMC->GetStack()->GetCurrentTrackNumber(); //take TID | |
650 | Int_t pid= gMC->TrackPid(); //take PID | |
651 | Double_t out[3]; gMC->TrackPosition(out[0],out[1],out[2]); //take MARS position at exit | |
652 | out[0]=0.5*(out[0]+in[0]); out[1]=0.5*(out[1]+in[1]); out[1]=0.5*(out[1]+in[1]); //take hit position at the anod plane | |
653 | Float_t xl,yl;AliHMPIDParam::Instance()->Mars2Lors(copy,out,xl,yl); //take LORS position | |
654 | new((*fHits)[fNhits++])AliHMPIDHit(copy,dEdX,pid,tid,xl,yl,out); //HIT for MIP, position near anod plane | |
655 | GenFee(copy,dEdX); //generate feedback photons | |
656 | }else //just going inside | |
657 | dEdX += gMC->Edep(); //collect this step dEdX | |
658 | }//MIP in GAP | |
659 | }//StepManager() | |
660 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |