| 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 | // ************************************************************************** |
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15 | |
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16 | |
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17 | #include "AliRICHv1.h" //class header |
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18 | #include "AliRICHParam.h" |
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19 | #include <TParticle.h> //Hits2SDigits() |
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20 | #include <TRandom.h> |
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21 | #include <TVirtualMC.h> //StepManager() for gMC |
| 22 | #include <TPDGCode.h> //StepHistory() |
| 23 | #include <AliStack.h> //StepManager(),Hits2SDigits() |
| 24 | #include <AliLoader.h> //Hits2SDigits() |
| 25 | #include <AliRunLoader.h> //Hits2SDigits() |
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26 | #include <AliConst.h> |
| 27 | #include <AliPDG.h> |
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28 | #include <AliMC.h> //StepManager() |
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29 | #include <AliRawDataHeader.h> //Digits2Raw() |
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30 | #include <AliDAQ.h> //Digits2Raw() |
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31 | #include <AliRun.h> //CreateMaterials() |
| 32 | #include <AliMagF.h> //CreateMaterials() |
| 33 | #include <TGeoManager.h> //CreateGeometry() |
| 34 | #include <TMultiGraph.h> //Optics() |
| 35 | #include <TGraph.h> //Optics() |
| 36 | #include <TLegend.h> //Optics() |
| 37 | #include <TCanvas.h> //Optics() |
| 38 | #include <TF2.h> //CreateMaterials() |
| 39 | #include <AliCDBManager.h> //CreateMaterials() |
| 40 | #include <AliCDBEntry.h> //CreateMaterials() |
| 41 | |
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42 | ClassImp(AliRICHv1) |
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43 | |
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44 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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45 | void AliRICHv1::CreateMaterials() |
| 46 | { |
| 47 | // Definition of available RICH materials |
| 48 | // Arguments: none |
| 49 | // Returns: none |
| 50 | AliDebug(1,"Start v1 RICH."); |
| 51 | |
| 52 | const Int_t kNbins=30; //number of photon energy points |
| 53 | |
| 54 | Float_t aAbsC6F14[kNbins]={//New values from A.DiMauro 28.10.03 total 30 |
| 55 | 32701.4219, 17996.1141, 10039.7281, 1799.1230, 1799.1231, 1799.1231, 1241.4091, 179.0987, 179.0986, 179.0987, |
| 56 | 179.0987, 118.9800, 39.5058, 23.7244, 11.1283, 7.1573, 3.6249, 2.1236, 0.7362, 0.5348, |
| 57 | 0.3387, 0.3074, 0.3050, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001}; |
| 58 | |
| 59 | Float_t aAbsSiO2[kNbins]={//New values from A.DiMauro 28.10.03 total 30 |
| 60 | 34.4338, 30.5424, 30.2584, 31.4928, 31.7868, 17.8397, 9.3410, 6.4492, 6.1128, 5.8128, |
| 61 | 5.5589, 5.2877, 5.0162, 4.7999, 4.5734, 4.2135, 3.7471, 2.6033, 1.5223, 0.9658, |
| 62 | 0.4242, 0.2500, 0.1426, 0.0863, 0.0793, 0.0724, 0.0655, 0.0587, 0.0001, 0.0001}; |
| 63 | |
| 64 | Float_t aQeCsI[kNbins] = {//New values from A.DiMauro 28.10.03 total 31 the last one cut to provide 30 |
| 65 | 0.0002, 0.0006, 0.0007, 0.0010, 0.0049, 0.0073, 0.0104, 0.0519, 0.0936, 0.1299, |
| 66 | 0.1560, 0.1768, 0.1872, 0.1976, 0.2142, 0.2288, 0.2434, 0.2599, 0.2673, 0.2808, |
| 67 | 0.2859, 0.2954, 0.3016, 0.3120, 0.3172, 0.3224, 0.3266, 0.3328, 0.3359, 0.3390}; //0.3431}; |
| 68 | |
| 69 | Float_t aQeCsIold[kNbins]={//previous values 26 in total added 0.0001 to the 30 |
| 70 | 0.0002, 0.0006, 0.0007, 0.0050, 0.0075, 0.0101, 0.0243, 0.0405, 0.0689, 0.1053, |
| 71 | 0.1215, 0.1417, 0.1579, 0.1620, 0.1661, 0.1677, 0.1743, 0.1768, 0.1793, 0.1826, |
| 72 | 0.1859, 0.1876, 0.1892, 0.1909, 0.2075, 0.2158, 0.0001, 0.0001, 0.0001, 0.0001 }; |
| 73 | |
| 74 | // radiator window gas metal |
| 75 | Float_t aIdxC6F14[kNbins] , aIdxSiO2[kNbins] , aIdxCH4[kNbins] , aIdx0[kNbins] , aIdx1[kNbins] ; |
| 76 | Float_t aAbsCH4[kNbins] , aAbsMet[kNbins] ; |
| 77 | Float_t aQe1[kNbins] ; //QE for all but PC |
| 78 | Float_t aEckov[kNbins]; //Ckov energy in GeV |
| 79 | |
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80 | |
| 81 | Double_t eCkovMin=5.5e-9,eCkovMax=8.5e-9; //in GeV |
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82 | TF2 idxC6F14("RidxC4F14","sqrt(1+0.554*(1239.84e-9/x)^2/((1239.84e-9/x)^2-5796)-0.0005*(y-20))" ,eCkovMin,eCkovMax,0,50); //DiMauro mail temp 0-50 degrees C |
| 83 | TF1 idxSiO2( "RidxSiO2" ,"sqrt(1+46.411/(10.666*10.666-x*x*1e18)+228.71/(18.125*18.125-x*x*1e18))",eCkovMin,eCkovMax); //TDR p.35 |
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84 | |
| 85 | |
| 86 | for(Int_t i=0;i<kNbins;i++){ |
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87 | aEckov [i] =eCkovMin+0.1e-9*i;//Ckov energy in GeV |
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88 | |
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89 | aIdxC6F14 [i] =idxC6F14.Eval(aEckov[i],20); //Simulation for 20 degress C |
| 90 | aIdxSiO2 [i] =idxSiO2 .Eval(aEckov[i]); |
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91 | aIdxCH4 [i] =AliRICHParam::IdxCH4 (aEckov[i]); aAbsCH4 [i] =AliRICHParam::AbsCH4 (aEckov[i]); |
| 92 | aAbsMet [i] =0.0001; //metal has absorption probability |
| 93 | aIdx0 [i] =0; //metal ref idx must be 0 in order to reflect photon |
| 94 | aIdx1 [i] =1; //metal ref idx must be 1 in order to apply photon to QE conversion |
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95 | aQe1 [i] =1; //QE for all other materials except for PC must be 1. |
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96 | } |
| 97 | |
| 98 | //data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm] |
| 99 | 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 |
| 100 | Float_t aC6F14[2]={ 12.01 , 18.99} , zC6F14[2]={ 6 , 9} , wC6F14[2]={6 , 14} , dC6F14=1.68 ; Int_t nC6F14=-2; |
| 101 | Float_t aSiO2[2]={ 28.09 , 15.99} , zSiO2[2]={14 , 8} , wSiO2[2]={1 , 2} , dSiO2=2.64 ; Int_t nSiO2=-2; |
| 102 | Float_t aCH4[2]={ 12.01 , 1.01} , zCH4[2]={ 6 , 1} , wCH4[2]={1 , 4} , dCH4=7.17e-4 ; Int_t nCH4=-2; |
| 103 | Float_t aCsI[2]={132.90 ,126.90} , zCsI[2]={55 ,53} , wCsI[2]={1 , 1} , dCsI=0.1 ; Int_t nCsI=-2; |
| 104 | Float_t aRoha= 12.01 , zRoha= 6 , dRoha= 0.10 , radRoha= 18.80 , absRoha= 86.3/dRoha; //special material- quazi carbon |
| 105 | Float_t aCu= 63.55 , zCu= 29 , dCu= 8.96 , radCu= 1.43 , absCu= 134.9/dCu ; |
| 106 | Float_t aW=183.84 , zW= 74 , dW= 19.30 , radW= 0.35 , absW= 185.0/dW ; |
| 107 | Float_t aAl= 26.98 , zAl= 13 , dAl= 2.70 , radAl= 8.90 , absAl= 106.4/dAl ; |
| 108 | |
| 109 | Int_t matId=0; //tmp material id number |
| 110 | Int_t unsens = 0, sens=1; //sensitive or unsensitive medium |
| 111 | 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 |
| 112 | Float_t maxfld = gAlice->Field()->Max(); //max field value |
| 113 | Float_t tmaxfd = -10.0; //max deflection angle due to magnetic field in one step |
| 114 | Float_t deemax = - 0.2; //max fractional energy loss in one step |
| 115 | Float_t stemax = - 0.1; //mas step allowed [cm] |
| 116 | Float_t epsil = 0.001; //abs tracking precision [cm] |
| 117 | Float_t stmin = - 0.001; //min step size [cm] in continius process transport, negative value: choose it automatically |
| 118 | AliMixture(++matId,"Air" ,aAir ,zAir ,dAir ,nAir ,wAir ); AliMedium(kAir ,"Air" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 119 | AliMixture(++matId,"C6F14",aC6F14,zC6F14,dC6F14,nC6F14,wC6F14); AliMedium(kC6F14,"C6F14",matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 120 | AliMixture(++matId,"SiO2" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kSiO2 ,"SiO2" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 121 | AliMixture(++matId,"CH4" ,aCH4 ,zCH4 ,dCH4 ,nCH4 ,wCH4 ); AliMedium(kCH4 ,"CH4" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 122 | AliMixture(++matId,"CsI" ,aCsI ,zCsI ,dCsI ,nCsI ,wCsI ); AliMedium(kCsI ,"CsI" ,matId, sens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);//sensitive |
| 123 | |
| 124 | AliMaterial(++matId,"Roha",aRoha,zRoha,dRoha,radRoha,absRoha); AliMedium(kRoha,"Roha", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 125 | AliMaterial(++matId,"Cu" ,aCu ,zCu ,dCu ,radCu ,absCu ); AliMedium(kCu ,"Cu" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 126 | AliMaterial(++matId,"W" ,aW ,zW ,dW ,radW ,absW ); AliMedium(kW ,"W" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 127 | AliMaterial(++matId,"Al" ,aAl ,zAl ,dAl ,radAl ,absAl ); AliMedium(kAl ,"Al" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); |
| 128 | |
| 129 | gMC->SetCerenkov((*fIdtmed)[kC6F14] , kNbins, aEckov, aAbsC6F14 , aQe1 , aIdxC6F14 ); |
| 130 | gMC->SetCerenkov((*fIdtmed)[kSiO2] , kNbins, aEckov, aAbsSiO2 , aQe1 , aIdxSiO2 ); |
| 131 | gMC->SetCerenkov((*fIdtmed)[kCH4] , kNbins, aEckov, aAbsCH4 , aQe1 , aIdxCH4 ); |
| 132 | gMC->SetCerenkov((*fIdtmed)[kCu] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 ); |
| 133 | gMC->SetCerenkov((*fIdtmed)[kW] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 ); //n=0 means reflect photons |
| 134 | gMC->SetCerenkov((*fIdtmed)[kCsI] , kNbins, aEckov, aAbsMet , aQeCsI, aIdx1 ); //n=1 means convert photons |
| 135 | gMC->SetCerenkov((*fIdtmed)[kAl] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 ); |
| 136 | |
| 137 | AliDebug(1,"Stop v1 RICH."); |
| 138 | TString ttl=GetTitle(); |
| 139 | if(!ttl.Contains("ShowOptics")) return; //do not plot optical curves |
| 140 | { |
| 141 | const Double_t kWidth=0.25,kHeight=0.2; |
| 142 | const Int_t kC6F14Marker=24 , kC6F14Color=kRed; |
| 143 | const Int_t kCH4Marker =25 , kCH4Color =kGreen; |
| 144 | const Int_t kSiO2M =26 , kSiO2Color =kBlue; |
| 145 | const Int_t kCsIMarker = 2 , kCsIColor =kMagenta; |
| 146 | |
| 147 | //Ref index |
| 148 | TGraph *pIdxC6F14=new TGraph(kNbins,aEckov,aIdxC6F14);pIdxC6F14->SetMarkerStyle(kC6F14Marker);pIdxC6F14->SetMarkerColor(kC6F14Color); |
| 149 | TGraph *pIdxSiO2 =new TGraph(kNbins,aEckov,aIdxSiO2); pIdxSiO2 ->SetMarkerStyle(kSiO2M) ;pIdxSiO2 ->SetMarkerColor(kSiO2Color); |
| 150 | TGraph *pIdxCH4 =new TGraph(kNbins,aEckov,aIdxCH4); pIdxCH4 ->SetMarkerStyle(kCH4Marker) ;pIdxCH4 ->SetMarkerColor(kCH4Color); |
| 151 | TMultiGraph *pIdxMG=new TMultiGraph("refidx","Ref index;E_{#check{C}} [GeV]"); TLegend *pIdxLe=new TLegend(0.5,0.21,0.5+kWidth,0.21+kHeight); |
| 152 | pIdxMG->Add(pIdxC6F14); pIdxLe->AddEntry(pIdxC6F14,"C6F14" ,"p"); |
| 153 | pIdxMG->Add(pIdxSiO2) ; pIdxLe->AddEntry(pIdxSiO2 ,"SiO2" ,"p"); |
| 154 | pIdxMG->Add(pIdxCH4) ; pIdxLe->AddEntry(pIdxCH4 ,"CH4" ,"p"); |
| 155 | //Absorbtion |
| 156 | TGraph *pAbsC6F14=new TGraph(kNbins,aEckov,aAbsC6F14);pAbsC6F14->SetMarkerStyle(kC6F14Marker); pAbsC6F14->SetMarkerColor(kC6F14Color); |
| 157 | TGraph *pAbsSiO2 =new TGraph(kNbins,aEckov,aAbsSiO2) ;pAbsSiO2 ->SetMarkerStyle(kSiO2M) ; pAbsSiO2 ->SetMarkerColor(kSiO2Color); |
| 158 | TGraph *pAbsCH4 =new TGraph(kNbins,aEckov,aAbsCH4) ;pAbsCH4 ->SetMarkerStyle(kCH4Marker) ; pAbsCH4 ->SetMarkerColor(kCH4Color); |
| 159 | |
| 160 | TMultiGraph *pAbsMG=new TMultiGraph("abs","Absorption [cm];E_{#check{C}} [GeV]"); TLegend *pAbsLe=new TLegend(0.2,0.15,0.2+kWidth,0.15+kHeight); |
| 161 | pAbsMG->Add(pAbsC6F14); pAbsLe->AddEntry(pAbsC6F14, "C6F14" ,"p"); |
| 162 | pAbsMG->Add(pAbsSiO2); pAbsLe->AddEntry(pAbsSiO2 , "SiO2" ,"p"); |
| 163 | pAbsMG->Add(pAbsCH4); pAbsLe->AddEntry(pAbsCH4 , "CH4" ,"p"); |
| 164 | //QE new and old |
| 165 | TGraph *pQeCsI =new TGraph(kNbins,aEckov,aQeCsI); pQeCsI ->SetMarkerStyle(kCsIMarker); pQeCsI ->SetMarkerColor(kCsIColor); |
| 166 | TGraph *pQeCsIold=new TGraph(kNbins,aEckov,aQeCsIold); pQeCsIold->SetMarkerStyle(kC6F14Marker);pQeCsIold->SetMarkerColor(kC6F14Color); |
| 167 | TMultiGraph *pCompMG=new TMultiGraph("qe","QE;E_{#check{C}} [GeV]"); TLegend *pCompLe=new TLegend(0.2,0.6,0.2+kWidth,0.6+kHeight); |
| 168 | pCompMG->Add(pQeCsI); pCompLe->AddEntry(pQeCsI, "QE new 30.10.03", "p"); |
| 169 | pCompMG->Add(pQeCsIold); pCompLe->AddEntry(pQeCsIold, "QE old 01.01.02", "p"); |
| 170 | //transmission |
| 171 | Float_t aTrC6F14[kNbins],aTrSiO2[kNbins],aTrCH4[kNbins],aTrTotal[kNbins]; |
| 172 | for(Int_t i=0;i<kNbins;i++){//calculate probability for photon to survive during transversing a volume of material with absorption length |
| 173 | aTrC6F14[i] =TMath::Exp(-AliRICHParam::RadThick() / (aAbsC6F14[i]+0.0001)); //radiator |
| 174 | aTrSiO2[i] =TMath::Exp(-AliRICHParam::WinThick() / (aAbsSiO2[i] +0.0001)); //window |
| 175 | aTrCH4[i] =TMath::Exp(-AliRICHParam::Pc2Win() / (aAbsCH4[i] +0.0001)); //from window to PC |
| 176 | aTrTotal[i] =aTrC6F14[i]*aTrSiO2[i]*aTrCH4[i]*aQeCsI[i]; |
| 177 | } |
| 178 | TGraph *pTrC6F14=new TGraph(kNbins,aEckov,aTrC6F14) ;pTrC6F14->SetMarkerStyle(kC6F14Marker);pTrC6F14->SetMarkerColor(kC6F14Color); |
| 179 | TGraph *pTrSiO2 =new TGraph(kNbins,aEckov,aTrSiO2) ;pTrSiO2 ->SetMarkerStyle(kSiO2M) ;pTrSiO2 ->SetMarkerColor(kSiO2Color); |
| 180 | TGraph *pTrCH4 =new TGraph(kNbins,aEckov,aTrCH4) ;pTrCH4 ->SetMarkerStyle(kCH4Marker) ;pTrCH4 ->SetMarkerColor(kCH4Color); |
| 181 | TGraph *pTrTotal=new TGraph(kNbins,aEckov,aTrTotal) ;pTrTotal->SetMarkerStyle(30) ;pTrTotal->SetMarkerColor(kYellow); |
| 182 | TMultiGraph *pTrMG=new TMultiGraph("trans","Transmission;E_{#check{C}} [GeV]"); TLegend *pTrLe=new TLegend(0.2,0.4,0.2+kWidth,0.4+kHeight); |
| 183 | pTrMG->Add(pQeCsI); pTrLe->AddEntry(pQeCsI, "CsI QE", "p"); |
| 184 | pTrMG->Add(pTrC6F14); pTrLe->AddEntry(pTrC6F14, "C6F14" , "p"); |
| 185 | pTrMG->Add(pTrSiO2); pTrLe->AddEntry(pTrSiO2, "SiO2" , "p"); |
| 186 | pTrMG->Add(pTrCH4); pTrLe->AddEntry(pTrCH4, "CH4" , "p"); |
| 187 | pTrMG->Add(pTrTotal); pTrLe->AddEntry(pTrTotal, "total" , "p"); |
| 188 | |
| 189 | TCanvas *pC=new TCanvas("c1","RICH optics to check",1100,900); pC->Divide(2,2); |
| 190 | pC->cd(1); pIdxMG ->Draw("AP"); pIdxLe ->Draw(); //ref idx |
| 191 | pC->cd(2); gPad->SetLogy(); pAbsMG ->Draw("AP"); pAbsLe ->Draw(); //absorption |
| 192 | pC->cd(3); pCompMG->Draw("AP"); pCompLe->Draw(); //QE |
| 193 | pC->cd(4); pTrMG ->Draw("AP"); pTrLe ->Draw(); //transmission |
| 194 | } |
| 195 | }//void AliRICH::CreateMaterials() |
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196 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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197 | void AliRICHv1::CreateGeometry() |
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198 | { |
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199 | //Creates detailed geometry simulation (currently GEANT volumes tree) |
| 200 | AliDebug(1,"Start main."); |
| 201 | if(!gMC->IsRootGeometrySupported()) return; |
| 202 | |
| 203 | Double_t cm=1,mm=0.1*cm,mkm=0.001*mm,dx,dy,dz;//default is cm |
| 204 | |
| 205 | TGeoVolume *pRich=gGeoManager->MakeBox("RICH",gGeoManager->GetMedium("RICH_CH4"),dx=(6*mm+1681*mm+6*mm)/2, //main RICH volume |
| 206 | dy=(6*mm+1466*mm+6*mm)/2, |
| 207 | dz=(80*mm+40*mm)*2/2); //x,y taken from 2033P1 z from p84 TDR |
| 208 | const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad |
| 209 | const Double_t kAngVer=20; // vertical angle between chambers 20 grad |
| 210 | const Double_t kAngCom=30; // common RICH rotation with respect to x axis 30 grad |
| 211 | const Double_t trans[3]={490,0,0}; //center of the chamber is on window-gap surface |
| 212 | for(Int_t iCh=1;iCh<=7;iCh++){//place 7 chambers |
| 213 | TGeoHMatrix *pMatrix=new TGeoHMatrix; |
| 214 | pMatrix->RotateY(90); //rotate around y since initial position is in XY plane -> now in YZ plane |
| 215 | pMatrix->SetTranslation(trans); //now plane in YZ is shifted along x |
| 216 | switch(iCh){ |
| 217 | case 1: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down |
| 218 | case 2: pMatrix->RotateZ(-kAngVer); break; //down |
| 219 | case 3: pMatrix->RotateY(kAngHor); break; //right |
| 220 | case 4: break; //no rotation |
| 221 | case 5: pMatrix->RotateY(-kAngHor); break; //left |
| 222 | case 6: pMatrix->RotateZ(kAngVer); break; //up |
| 223 | case 7: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up |
| 224 | } |
| 225 | pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane |
| 226 | gGeoManager->GetVolume("ALIC")->AddNode(pRich,iCh,pMatrix); |
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227 | } |
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228 | |
| 229 | Float_t par[3]; |
| 230 | Int_t matrixIdReturn=0; //matrix id returned by AliMatrix |
| 231 | //Pad Panel frame 6 sectors |
| 232 | 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 |
| 233 | 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 |
| 234 | 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 |
| 235 | 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) |
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236 | |
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237 | gMC->Gspos("Rppf",1,"RICH", -335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY");//F1 2040P1 z p.84 TDR |
| 238 | gMC->Gspos("Rppf",2,"RICH", +335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY"); |
| 239 | gMC->Gspos("Rppf",3,"RICH", -335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY"); |
| 240 | gMC->Gspos("Rppf",4,"RICH", +335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY"); |
| 241 | gMC->Gspos("Rppf",5,"RICH", -335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY"); |
| 242 | gMC->Gspos("Rppf",6,"RICH", +335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY"); |
| 243 | gMC->Gspos("Rpc" ,1,"Rppf", 0*mm, 0*mm, -19.15*mm, 0,"ONLY");//PPF 2001P2 |
| 244 | gMC->Gspos("RppfLarge",1,"Rppf", -224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); |
| 245 | gMC->Gspos("RppfLarge",2,"Rppf", -224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 246 | gMC->Gspos("RppfLarge",3,"Rppf", -224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 247 | gMC->Gspos("RppfLarge",4,"Rppf", -224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); |
| 248 | gMC->Gspos("RppfSmall",1,"Rppf", - 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); |
| 249 | gMC->Gspos("RppfSmall",2,"Rppf", - 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 250 | gMC->Gspos("RppfSmall",3,"Rppf", - 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 251 | gMC->Gspos("RppfSmall",4,"Rppf", - 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); |
| 252 | gMC->Gspos("RppfSmall",5,"Rppf", + 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); |
| 253 | gMC->Gspos("RppfSmall",6,"Rppf", + 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 254 | gMC->Gspos("RppfSmall",7,"Rppf", + 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 255 | gMC->Gspos("RppfSmall",8,"Rppf", + 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); |
| 256 | gMC->Gspos("RppfLarge",5,"Rppf", +224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY"); |
| 257 | gMC->Gspos("RppfLarge",6,"Rppf", +224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 258 | gMC->Gspos("RppfLarge",7,"Rppf", +224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY"); |
| 259 | gMC->Gspos("RppfLarge",8,"Rppf", +224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY"); |
| 260 | //Gap - anod wires 6 copies to RICH |
| 261 | 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 |
| 262 | 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 |
| 263 | AliMatrix(matrixIdReturn,180,0, 90,90, 90,0); //wires along x |
| 264 | |
| 265 | gMC->Gspos("Rgap",1,"RICH", -335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY"); //F1 2040P1 z WP 2099P1 |
| 266 | gMC->Gspos("Rgap",2,"RICH", +335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY"); |
| 267 | gMC->Gspos("Rgap",3,"RICH", -335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY"); |
| 268 | gMC->Gspos("Rgap",4,"RICH", +335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY"); |
| 269 | gMC->Gspos("Rgap",5,"RICH", -335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY"); |
| 270 | gMC->Gspos("Rgap",6,"RICH", +335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY"); |
| 271 | for(int i=1;i<=96;i++) |
| 272 | gMC->Gspos("Rano",i,"Rgap", 0*mm, -411/2*mm+i*4*mm, 0.185*mm, matrixIdReturn,"ONLY"); //WP 2099P1 |
| 273 | //Defines radiators geometry |
| 274 | 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 |
| 275 | par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 4*mm/2; gMC->Gsvolu("RradFront" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //front |
| 276 | par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 5*mm/2; gMC->Gsvolu("RradWin" ,"BOX ",(*fIdtmed)[kSiO2] ,par,3); //window |
| 277 | 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 |
| 278 | 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 |
| 279 | par[0]= 0 ;par[1]= 10*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradSpacer","TUBE",(*fIdtmed)[kSiO2] ,par,3); //spacer |
| 280 | |
| 281 | gMC->Gspos("Rrad",1,"RICH", 0*mm,-434*mm, -12*mm, 0,"ONLY"); //3 radiators to RICH |
| 282 | gMC->Gspos("Rrad",2,"RICH", 0*mm, 0*mm, -12*mm, 0,"ONLY"); |
| 283 | gMC->Gspos("Rrad",3,"RICH", 0*mm,+434*mm, -12*mm, 0,"ONLY"); |
| 284 | gMC->Gspos("RradFront",1,"Rrad", 0*mm, 0*mm, -10.0*mm, 0,"ONLY"); //front cover |
| 285 | gMC->Gspos("RradWin" ,1,"Rrad", 0*mm, 0*mm, 9.5*mm, 0,"ONLY"); //quartz window (back cover) |
| 286 | gMC->Gspos("RradLong" ,1,"Rrad", 0*mm,-204*mm, -0.5*mm, 0,"ONLY"); //long side |
| 287 | gMC->Gspos("RradLong" ,2,"Rrad", 0*mm,+204*mm, -0.5*mm, 0,"ONLY"); //long side |
| 288 | gMC->Gspos("RradShort",1,"Rrad",-660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side |
| 289 | gMC->Gspos("RradShort",2,"Rrad",+660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side |
| 290 | for(int i=0;i<3;i++) |
| 291 | for(int j=0;j<10;j++) |
| 292 | 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 |
| 293 | //Defines SandBox geometry |
| 294 | 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 |
| 295 | 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 |
| 296 | 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 |
| 297 | |
| 298 | gMC->Gspos("Rsb",1,"RICH", 0*mm, 0*mm, -73.75*mm, 0,"ONLY"); //p.84 TDR sandbox to rich |
| 299 | gMC->Gspos("RsbComb" ,1,"Rsb", 0*mm, 0*mm, 0*mm, 0,"ONLY"); //2072P1 honeycomv to sandbox |
| 300 | gMC->Gspos("RsbCover",1,"Rsb", 0*mm, 0*mm, +25*mm, 0,"ONLY"); //cover to sandbox |
| 301 | gMC->Gspos("RsbCover",2,"Rsb", 0*mm, 0*mm, -25*mm, 0,"ONLY"); //cover to sandbox |
| 302 | AliDebug(1,"Stop v1. HMPID option"); |
| 303 | }//CreateGeometry() |
| 9de8d990 |
304 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
305 | void AliRICHv1::Init() |
| 306 | { |
| 307 | // This methode defines ID for sensitive volumes, i.e. such geometry volumes for which there are if(gMC->CurrentVolID()==XXX) statements in StepManager() |
| 308 | // Arguments: none |
| 309 | // Returns: none |
| 310 | AliDebug(1,"Start v1 HMPID."); |
| 311 | fIdRad = gMC->VolId("Rrad"); |
| 312 | fIdWin = gMC->VolId("RradWin"); |
| 313 | fIdPc = gMC->VolId("Rpc"); |
| 314 | fIdAmpGap = gMC->VolId("Rgap"); |
| 315 | fIdProxGap = gMC->VolId("Rgap"); |
| 316 | AliDebug(1,"Stop v1 HMPID."); |
| 317 | } |
| 9de8d990 |
318 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 3582c1f9 |
319 | Bool_t AliRICHv1::IsLostByFresnel() |
| ed3ceb24 |
320 | { |
| e42a7b46 |
321 | // Calculate probability for the photon to be lost by Fresnel reflection. |
| 3582c1f9 |
322 | TLorentzVector p4; |
| 323 | Double_t mom[3],localMom[3]; |
| ab296411 |
324 | gMC->TrackMomentum(p4); mom[0]=p4(1); mom[1]=p4(2); mom[2]=p4(3); |
| 325 | localMom[0]=0; localMom[1]=0; localMom[2]=0; |
| 3582c1f9 |
326 | gMC->Gmtod(mom,localMom,2); |
| 327 | Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2]; |
| 328 | Double_t localTheta = TMath::ATan2(TMath::Sqrt(localTc),localMom[1]); |
| 329 | Double_t cotheta = TMath::Abs(TMath::Cos(localTheta)); |
| 330 | if(gMC->GetRandom()->Rndm() < Fresnel(p4.E()*1e9,cotheta,1)){ |
| 998b831f |
331 | AliDebug(1,"Photon lost"); |
| 3582c1f9 |
332 | return kTRUE; |
| 333 | }else |
| 334 | return kFALSE; |
| 335 | }//IsLostByFresnel() |
| 9de8d990 |
336 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
337 | void AliRICHv1::GenFee(Int_t iChamber,Float_t eloss) |
| e42a7b46 |
338 | { |
| 339 | // Generate FeedBack photons for the current particle. To be invoked from StepManager(). |
| 340 | // eloss=0 means photon so only pulse height distribution is to be analysed. This one is done in AliRICHParam::TotQdc() |
| 341 | |
| 342 | TLorentzVector x4; |
| 343 | gMC->TrackPosition(x4); |
| db910db9 |
344 | TVector2 x2=AliRICHParam::Instance()->Mars2Lors(iChamber,x4.Vect(),AliRICHParam::kPc);//hit position on photocathode plane |
| 998b831f |
345 | TVector2 xspe=x2; |
| db910db9 |
346 | Int_t sector=AliRICHParam::Loc2Sec(xspe); if(sector==-1) return; //hit in dead zone, nothing to produce |
| 347 | Int_t iTotQdc=AliRICHParam::TotQdc(x2,eloss); |
| 348 | Int_t iNphotons=gMC->GetRandom()->Poisson(AliRICHParam::AlphaFeedback(iChamber,sector)*iTotQdc); |
| 998b831f |
349 | AliDebug(1,Form("N photons=%i",iNphotons)); |
| e42a7b46 |
350 | Int_t j; |
| 351 | Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4]; |
| 352 | //Generate photons |
| 353 | for(Int_t i=0;i<iNphotons;i++){//feedbacks loop |
| 354 | Double_t ranf[2]; |
| 355 | gMC->GetRandom()->RndmArray(2,ranf); //Sample direction |
| 356 | cthf=ranf[0]*2-1.0; |
| 357 | if(cthf<0) continue; |
| 358 | sthf = TMath::Sqrt((1 - cthf) * (1 + cthf)); |
| 359 | phif = ranf[1] * 2 * TMath::Pi(); |
| 360 | |
| 361 | if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57) |
| 362 | enfp = 7.5e-9; |
| 363 | else if(randomNumber<=0.7) |
| 364 | enfp = 6.4e-9; |
| 365 | else |
| 366 | enfp = 7.9e-9; |
| 367 | |
| 368 | |
| 369 | dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif); |
| 370 | gMC->Gdtom(dir, mom, 2); |
| 371 | mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp; |
| 372 | mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]); |
| 373 | |
| 374 | // Polarisation |
| 375 | e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1]; |
| 376 | e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0; |
| 377 | e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0]; |
| 378 | |
| 379 | vmod=0; |
| 380 | for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; |
| 381 | if (!vmod) for(j=0;j<3;j++) { |
| 382 | uswop=e1[j]; |
| 383 | e1[j]=e3[j]; |
| 384 | e3[j]=uswop; |
| 385 | } |
| 386 | vmod=0; |
| 387 | for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; |
| 388 | if (!vmod) for(j=0;j<3;j++) { |
| 389 | uswop=e2[j]; |
| 390 | e2[j]=e3[j]; |
| 391 | e3[j]=uswop; |
| 392 | } |
| 393 | |
| 394 | 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; |
| 395 | 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; |
| 396 | |
| 397 | phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi(); |
| 398 | for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi); |
| 399 | gMC->Gdtom(pol, pol, 2); |
| 400 | Int_t outputNtracksStored; |
| db910db9 |
401 | gAlice->GetMCApp()->PushTrack(1, //transport |
| e42a7b46 |
402 | gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track |
| db910db9 |
403 | kFeedback, //PID |
| 404 | mom[0],mom[1],mom[2],mom[3], //track momentum |
| 405 | x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin |
| 406 | pol[0],pol[1],pol[2], //polarization |
| 407 | kPFeedBackPhoton, //process ID |
| 408 | outputNtracksStored, //on return how many new photons stored on stack |
| 409 | 1.0); //weight |
| e42a7b46 |
410 | }//feedbacks loop |
| 998b831f |
411 | AliDebug(1,"Stop."); |
| e42a7b46 |
412 | }//GenerateFeedbacks() |
| 9de8d990 |
413 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 0422a446 |
414 | void AliRICHv1::Hits2SDigits() |
| 415 | { |
| 416 | // Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits. |
| 417 | AliDebug(1,"Start."); |
| 418 | for(Int_t iEventN=0;iEventN<GetLoader()->GetRunLoader()->GetAliRun()->GetEventsPerRun();iEventN++){//events loop |
| 419 | GetLoader()->GetRunLoader()->GetEvent(iEventN);//get next event |
| 420 | |
| 421 | if(!GetLoader()->TreeH()) GetLoader()->LoadHits(); GetLoader()->GetRunLoader()->LoadHeader(); |
| 422 | if(!GetLoader()->GetRunLoader()->TreeK()) GetLoader()->GetRunLoader()->LoadKinematics();//from |
| 423 | if(!GetLoader()->TreeS()) GetLoader()->MakeTree("S"); MakeBranch("S");//to |
| 424 | |
| 425 | for(Int_t iPrimN=0;iPrimN<GetLoader()->TreeH()->GetEntries();iPrimN++){//prims loop |
| 426 | GetLoader()->TreeH()->GetEntry(iPrimN); |
| 427 | for(Int_t iHitN=0;iHitN<Hits()->GetEntries();iHitN++){//hits loop |
| 428 | AliRICHHit *pHit=(AliRICHHit*)Hits()->At(iHitN);//get current hit |
| db910db9 |
429 | TVector2 x2 = AliRICHParam::Instance()->Mars2Lors(pHit->C(),0.5*(pHit->InX3()+pHit->OutX3()),AliRICHParam::kAnod);//hit position in the anod plane |
| 430 | Int_t iTotQdc=AliRICHParam::TotQdc(x2,pHit->Eloss());//total charge produced by hit, 0 if hit in dead zone |
| 0422a446 |
431 | if(iTotQdc==0) continue; |
| 432 | // |
| 433 | //need to quantize the anod.... |
| 434 | TVector padHit=AliRICHParam::Loc2Pad(x2); |
| 435 | TVector2 padHitXY=AliRICHParam::Pad2Loc(padHit); |
| 436 | TVector2 anod; |
| db910db9 |
437 | if((x2.Y()-padHitXY.Y())>0) anod.Set(x2.X(),padHitXY.Y()+AliRICHParam::AnodPitch()/2); |
| 438 | else anod.Set(x2.X(),padHitXY.Y()-AliRICHParam::AnodPitch()/2); |
| 0422a446 |
439 | //end to quantize anod |
| 440 | // |
| db910db9 |
441 | TVector area=AliRICHParam::Loc2Area(anod);//determine affected pads, dead zones analysed inside |
| 0422a446 |
442 | AliDebug(1,Form("hitanod(%6.2f,%6.2f)->area(%3.0f,%3.0f)-(%3.0f,%3.0f) QDC=%4i",anod.X(),anod.Y(),area[0],area[1],area[2],area[3],iTotQdc)); |
| 443 | TVector pad(2); |
| 444 | for(pad[1]=area[1];pad[1]<=area[3];pad[1]++)//affected pads loop |
| 445 | for(pad[0]=area[0];pad[0]<=area[2];pad[0]++){ |
| db910db9 |
446 | Double_t padQdc=iTotQdc*AliRICHParam::FracQdc(anod,pad); |
| 0422a446 |
447 | AliDebug(1,Form("current pad(%3.0f,%3.0f) with QDC =%6.2f",pad[0],pad[1],padQdc)); |
| db910db9 |
448 | if(padQdc>0.1) SDigAdd(pHit->C(),pad,padQdc,GetLoader()->GetRunLoader()->Stack()->Particle(pHit->GetTrack())->GetPdgCode(),pHit->GetTrack()); |
| 0422a446 |
449 | }//affected pads loop |
| 450 | }//hits loop |
| 451 | }//prims loop |
| 452 | GetLoader()->TreeS()->Fill(); |
| 453 | GetLoader()->WriteSDigits("OVERWRITE"); |
| db910db9 |
454 | SDigReset(); |
| 0422a446 |
455 | }//events loop |
| 456 | GetLoader()->UnloadHits(); GetLoader()->GetRunLoader()->UnloadHeader(); GetLoader()->GetRunLoader()->UnloadKinematics(); |
| 457 | GetLoader()->UnloadSDigits(); |
| 458 | AliDebug(1,"Stop."); |
| 459 | }//Hits2SDigits() |
| 9de8d990 |
460 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 0422a446 |
461 | void AliRICHv1::Digits2Raw() |
| 462 | { |
| 463 | //Creates raw data files in DDL format. Invoked by AliSimulation |
| 464 | //loop over events is done outside in AliSimulation |
| 465 | //Arguments: none |
| 466 | // Returns: none |
| 467 | AliDebug(1,"Start."); |
| 468 | GetLoader()->LoadDigits(); |
| 469 | GetLoader()->TreeD()->GetEntry(0); |
| 470 | |
| 471 | ofstream file[AliRICHDigit::kNddls]; //output streams |
| 472 | Int_t cnt[AliRICHDigit::kNddls]; //data words counters for DDLs |
| 473 | AliRawDataHeader header; //empty DDL header |
| 474 | UInt_t w32=0; //32 bits data word |
| 475 | |
| 476 | for(Int_t i=0;i<AliRICHDigit::kNddls;i++){//open all 14 DDL in parallel |
| 362c9d61 |
477 | file[i].open(AliDAQ::DdlFileName("RICH",i)); |
| 0422a446 |
478 | 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 |
| 479 | cnt[i]=0; //reset counters |
| 480 | } |
| 481 | |
| db910db9 |
482 | for(Int_t iCh=0;iCh<fNcham;iCh++){ //digits are stored on chamber by chamber basis |
| 483 | TClonesArray *pDigs=(TClonesArray*)fDig->UncheckedAt(iCh); |
| 484 | for(Int_t iDig=0;iDig<pDigs->GetEntriesFast();iDig++){//digits loop for a given chamber |
| 485 | AliRICHDigit *pDig=(AliRICHDigit*)pDigs->At(iDig); |
| 0422a446 |
486 | Int_t ddl=pDig->Dig2Raw(w32); //ddl is 0..13 |
| 487 | file[ddl].write((char*)&w32,sizeof(w32)); cnt[ddl]++;//write formated digit to the propriate file (as decided in Dig2Raw) and increment corresponding counter |
| 488 | }//digits loop for a given chamber |
| 489 | }//chambers loop |
| 490 | for(Int_t i=0;i<AliRICHDigit::kNddls;i++){ |
| 491 | header.fSize=sizeof(header)+cnt[i]*sizeof(w32); //now calculate total number of bytes for each DDL file |
| 492 | header.SetAttribute(0); |
| 493 | file[i].seekp(0); file[i].write((char*)&header,sizeof(header));//rewrite DDL header with fSize field properly set |
| 494 | file[i].close(); //close DDL file |
| 495 | } |
| 496 | GetLoader()->UnloadDigits(); |
| 497 | AliDebug(1,"Stop."); |
| 498 | }//Digits2Raw() |
| 9de8d990 |
499 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
500 | Float_t AliRICHv1::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola) |
| 501 | { |
| 502 | // Correction for Fresnel ??????????? |
| 503 | // Arguments: ene - photon energy [GeV], |
| 504 | // PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.) |
| 505 | // Returns: |
| 506 | 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, |
| 507 | 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, |
| 508 | 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5}; |
| 509 | Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05, |
| 510 | 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11, |
| 511 | 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95, |
| 512 | 1.72,1.53}; |
| 513 | Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543, |
| 514 | 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878, |
| 515 | 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824, |
| 516 | 1.714,1.498}; |
| 517 | Float_t xe=ene; |
| 518 | Int_t j=Int_t(xe*10)-49; |
| 519 | Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]); |
| 520 | Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]); |
| 521 | |
| 522 | //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR |
| 523 | //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197 |
| 524 | |
| 525 | Float_t sinin=TMath::Sqrt(1-pdoti*pdoti); |
| 526 | Float_t tanin=sinin/pdoti; |
| 527 | |
| 528 | Float_t c1=cn*cn-ck*ck-sinin*sinin; |
| 529 | Float_t c2=4*cn*cn*ck*ck; |
| 530 | Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1)); |
| 531 | Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1); |
| 532 | |
| 533 | Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2); |
| 534 | Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2); |
| 535 | |
| 536 | |
| 537 | //CORRECTION FACTOR FOR SURFACE ROUGHNESS |
| 538 | //B.J. STAGG APPLIED OPTICS, 30(1991),4113 |
| 539 | |
| 540 | Float_t sigraf=18.; |
| 541 | Float_t lamb=1240/ene; |
| 542 | Float_t fresn; |
| 543 | |
| 544 | Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb)); |
| 545 | |
| 546 | if(pola) |
| 547 | { |
| 548 | Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S |
| 549 | fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr)); |
| 550 | } |
| 551 | else |
| 552 | fresn=0.5*(rp+rs); |
| 553 | |
| 554 | fresn = fresn*rO; |
| 555 | return fresn; |
| 556 | }//Fresnel() |
| 9de8d990 |
557 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
558 | void AliRICHv1::Print(Option_t *option)const |
| 559 | { |
| 560 | // Debug printout |
| 561 | TObject::Print(option); |
| 562 | Printf("Total number of MIP reached radiator %9i",fCounters(kMipEnterRad)); |
| 563 | Printf("Total number of Ckov created %9i",fCounters(kCkovNew)); |
| 564 | Printf("number of Ckov created in radiator %9i",fCounters(kCkovNewRad)); |
| 565 | Printf("number of Ckov created in window %9i",fCounters(kCkovNewWin)); |
| 566 | Printf("number of Ckov created in proximity gap %9i",fCounters(kCkovNewProxGap)); |
| 567 | Printf("number of Ckov created in amplification gap %9i",fCounters(kCkovNewAmpGap)); |
| 568 | Printf("number of Ckov reached PC %9i",fCounters(kCkovEnterPc)); |
| 569 | Printf("number of photelectrons %9i",fCounters(kPhotoEle)); |
| 570 | }//void AliRICH::Print(Option_t *option)const |
| 9de8d990 |
571 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
572 | void AliRICHv1::StepCount() |
| 573 | { |
| 574 | // Count number of ckovs created |
| 575 | Int_t copy; |
| 576 | if(gMC->TrackCharge() &&gMC->CurrentVolID(copy)==fIdRad &&gMC->IsTrackEntering() ) fCounters(kMipEnterRad)++; |
| 577 | if(gMC->TrackPid()==kCerenkov &&gMC->IsNewTrack() ) fCounters(kCkovNew)++; |
| 578 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdRad &&gMC->IsNewTrack() ) fCounters(kCkovNewRad)++; |
| 579 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdWin &&gMC->IsNewTrack() ) fCounters(kCkovNewWin)++; |
| 580 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdProxGap&&gMC->IsNewTrack() ) fCounters(kCkovNewProxGap)++; |
| 581 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdAmpGap &&gMC->IsNewTrack() ) fCounters(kCkovNewAmpGap)++; |
| 582 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdPc &&gMC->IsTrackEntering() ) fCounters(kCkovEnterPc)++; |
| 583 | if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdPc &&gMC->IsTrackEntering() &&gMC->Edep()>0) fCounters(kPhotoEle)++; |
| 584 | } |
| 9de8d990 |
585 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
586 | void AliRICHv1::StepHistory() |
| 587 | { |
| 588 | // This methode is invoked from StepManager() in order to print out |
| 589 | static Int_t iStepN; |
| 590 | const char *sParticle; |
| 591 | switch(gMC->TrackPid()){ |
| 592 | case kProton: sParticle="PROTON" ;break; |
| 593 | case kNeutron: sParticle="neutron" ;break; |
| 594 | case kGamma: sParticle="gamma" ;break; |
| 595 | case kCerenkov: sParticle="CKOV" ;break; |
| 596 | case kPi0: sParticle="Pi0" ;break; |
| 597 | case kPiPlus: sParticle="Pi+" ;break; |
| 598 | case kPiMinus: sParticle="Pi-" ;break; |
| 599 | case kElectron: sParticle="electron" ;break; |
| 600 | default: sParticle="not known" ;break; |
| 601 | } |
| 602 | |
| 603 | TString flag="fanny combination"; |
| 604 | if(gMC->IsTrackAlive()) |
| 605 | if(gMC->IsTrackEntering()) flag="enters to"; |
| 606 | else if(gMC->IsTrackExiting()) flag="exits from"; |
| 607 | else if(gMC->IsTrackInside()) flag="inside"; |
| 608 | else |
| 609 | if(gMC->IsTrackStop()) flag="stoped in"; |
| 610 | |
| 611 | Int_t vid=0,copy=0; |
| 612 | TString path=gMC->CurrentVolName(); path.Prepend("-");path.Prepend(gMC->CurrentVolOffName(1));//current volume and his mother are always there |
| 613 | vid=gMC->CurrentVolOffID(2,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));} |
| 614 | vid=gMC->CurrentVolOffID(3,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));} |
| 615 | |
| 616 | 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); |
| 617 | |
| 618 | Printf("Step %i: tid=%i flags alive=%i disap=%i enter=%i exit=%i inside=%i out=%i stop=%i new=%i", |
| 619 | iStepN, gAlice->GetMCApp()->GetCurrentTrackNumber(), |
| 620 | gMC->IsTrackAlive(), gMC->IsTrackDisappeared(),gMC->IsTrackEntering(), gMC->IsTrackExiting(), |
| 621 | gMC->IsTrackInside(),gMC->IsTrackOut(), gMC->IsTrackStop(), gMC->IsNewTrack()); |
| 622 | |
| 623 | Float_t a,z,den,rad,abs; a=z=den=rad=abs=-1; |
| 624 | Int_t mid=gMC->CurrentMaterial(a,z,den,rad,abs); |
| 625 | 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); |
| 626 | iStepN++; |
| 627 | }//StepHistory() |
| 9de8d990 |
628 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| db910db9 |
629 | void AliRICHv1::StepManager() |
| 630 | { |
| 631 | // Full Step Manager. |
| 632 | // Arguments: none |
| 633 | // Returns: none |
| 634 | // StepHistory(); return; //uncomment to print tracks history |
| 635 | // StepCount(); return; //uncomment to count photons |
| 636 | |
| 637 | Int_t copy; //volume copy aka node |
| 638 | static Int_t iCham; |
| 639 | //Treat photons |
| 640 | static TLorentzVector cerX4; |
| 641 | if((gMC->TrackPid()==kCerenkov||gMC->TrackPid()==kFeedback)&&gMC->CurrentVolID(copy)==fIdPc){//photon in PC |
| 642 | if(gMC->Edep()>0){//photon survided QE test i.e. produces electron |
| 643 | if(IsLostByFresnel()){ gMC->StopTrack(); return;} //photon lost due to fersnel reflection |
| 644 | gMC->TrackPosition(cerX4); gMC->CurrentVolOffID(2,iCham);//RICH-Rppf-Rpc |
| 645 | HitAdd(iCham,gMC->GetStack()->GetCurrentTrackNumber(),gMC->TrackPid(),cerX4.Vect(),cerX4.Vect());//HIT for PHOTON in conditions CF+CSI+DE |
| 646 | GenFee(iCham); |
| 647 | }//photon in PC and DE >0 |
| 648 | }//photon in PC |
| 649 | |
| 650 | //Treat charged particles |
| 651 | static Float_t eloss; |
| 652 | static TLorentzVector mipInX4,mipOutX4; |
| 653 | if(gMC->TrackCharge() && gMC->CurrentVolID(copy)==fIdAmpGap){//MIP in amplification gap |
| 654 | gMC->CurrentVolOffID(1,iCham);//RICH-Rgap |
| 655 | if(gMC->IsTrackEntering()||gMC->IsNewTrack()) {//MIP in GAP entering or newly created |
| 656 | eloss=0; |
| 657 | gMC->TrackPosition(mipInX4); |
| 658 | }else if(gMC->IsTrackExiting()||gMC->IsTrackStop()||gMC->IsTrackDisappeared()){//MIP in GAP exiting or disappeared |
| 659 | eloss+=gMC->Edep();//take into account last step dEdX |
| 660 | gMC->TrackPosition(mipOutX4); |
| 661 | HitAdd(iCham,gMC->GetStack()->GetCurrentTrackNumber(),gMC->TrackPid(),mipInX4.Vect(),mipOutX4.Vect(),eloss);//HIT for MIP: MIP in GAP Exiting |
| 662 | GenFee(iCham,eloss);//MIP+GAP+Exit |
| 663 | }else//MIP in GAP going inside |
| 664 | eloss += gMC->Edep(); |
| 665 | }//MIP in GAP |
| 666 | }//StepManager() |
| 9de8d990 |
667 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
git://git.uio.no / u / mrichter / AliRoot.git / blame