1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // Rich advanced example for Geant4 |
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27 | // RichTbMaterialParameters.cc for Rich of LHCb |
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28 | // History: |
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29 | // Created: Sajan Easo (Sajan.Easo@cern.ch) |
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30 | // Revision and changes: Patricia Mendez (Patricia.Mendez@cern.ch) |
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31 | ///////////////////////////////////////////////////////////////////////////// |
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32 | #include <iostream> |
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33 | #include <fstream> |
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34 | #include "globals.hh" |
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35 | #include "RichTbGeometryParameters.hh" |
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36 | #include "RichTbMaterialParameters.hh" |
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37 | #include "FilterTrData.hh" |
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38 | #include "AerogelTypeSpec.hh" |
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39 | |
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40 | #include "RichTbAnalysisManager.hh" |
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41 | |
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42 | |
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43 | void InitializeRichTbMaterial(){ |
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44 | |
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45 | } |
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46 | |
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47 | std::vector<G4double> InitializePhotonMomentumVector() { |
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48 | |
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49 | G4double PhotonEnergyStep=(PhotonMaxEnergy-PhotonMinEnergy)/ |
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50 | NumPhotWaveLengthBins; |
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51 | std::vector<G4double>PhotMomVect(NumPhotWaveLengthBins); |
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52 | for (G4int ibin=0; ibin<NumPhotWaveLengthBins; ibin++){ |
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53 | PhotMomVect[ibin]=PhotonMinEnergy+PhotonEnergyStep*ibin; |
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54 | } |
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55 | return PhotMomVect; |
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56 | } |
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57 | std::vector<G4double> InitN2RefIndex(G4double pressure, G4double temperature){ |
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58 | |
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59 | std::vector<G4double> PmV=InitN2RefPhotW(); |
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60 | std::vector<G4double> RefN2(NumPhotWaveLengthBins); |
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61 | G4double GasRhoN2Cur=GasRhoN2atSTP*(GasTemperature_STP/temperature)* |
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62 | (pressure/ GasPressure_STP); |
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63 | G4double epho,pfe,cpfe; |
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64 | for(G4int ibinwn =0; ibinwn<NumPhotWaveLengthBins ; ibinwn++ ){ |
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65 | |
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66 | epho = PmV[ibinwn]/eV; |
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67 | pfe = SellN2F1/(SellN2E1*SellN2E1 - epho*epho ) + |
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68 | SellN2F2/(SellN2E2*SellN2E2 - epho*epho ); |
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69 | cpfe=0.3738*(GasRhoN2Cur/GasMolWeightN2)*pfe; |
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70 | RefN2[ibinwn]=std::pow((1.0+2*cpfe)/(1.0-cpfe),0.5); |
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71 | } |
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72 | return RefN2; |
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73 | } |
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74 | std::vector<G4double> InitN2RefPhotW() { |
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75 | return InitializePhotonMomentumVector() ; |
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76 | } |
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77 | std::vector<G4double> InitAgelPhotW() { |
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78 | return InitializePhotonMomentumVector() ; |
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79 | } |
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80 | std::vector<G4double> InitializeHpdQE(G4int ihpdqe) { |
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81 | // Initialize the HPD QE |
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82 | G4int iqb; |
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83 | if(ihpdqe >= NumHpdTot ) { |
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84 | G4cout<<"Wrong HPD Number for QE " <<ihpdqe<<" vs " |
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85 | <<NumHpdTot <<G4endl; |
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86 | } |
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87 | std::vector<G4double>qeCurPerCent(NumQEbins); |
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88 | if(ihpdqe == 0 ){ |
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89 | for(iqb=0; iqb<NumQEbins; iqb++){ |
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90 | qeCurPerCent[iqb] = Hpd0QEPerCent[iqb]* HpdQEReductionFactor; |
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91 | } |
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92 | } |
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93 | if(ihpdqe == 1 ){ |
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94 | for(iqb=0; iqb<NumQEbins; iqb++){ |
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95 | qeCurPerCent[iqb] = Hpd1QEPerCent[iqb]* HpdQEReductionFactor; |
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96 | } |
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97 | } |
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98 | if(ihpdqe == 2 ){ |
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99 | for(iqb=0; iqb<NumQEbins; iqb++){ |
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100 | qeCurPerCent[iqb] = Hpd2QEPerCent[iqb]* HpdQEReductionFactor; |
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101 | } |
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102 | } |
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103 | if(ihpdqe == 3 ){ |
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104 | for(iqb=0; iqb<NumQEbins; iqb++){ |
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105 | qeCurPerCent[iqb] = Hpd3QEPerCent[iqb]* HpdQEReductionFactor; |
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106 | } |
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107 | } |
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108 | |
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109 | return qeCurPerCent; |
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110 | } |
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111 | std::vector<G4double> InitializeHpdWaveL(G4int ihpdqe) { |
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112 | G4int iqb; |
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113 | if(ihpdqe >= NumHpdTot ) { |
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114 | G4cout<<"Wrong HPD Number for QE wavelength " <<ihpdqe<<" vs " |
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115 | <<NumHpdTot <<G4endl; |
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116 | } |
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117 | // for now all HPDs have the same wavelength bins. |
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118 | std::vector<G4double>HpdQEW(NumQEbins); |
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119 | for (iqb=0; iqb<NumQEbins; iqb++){ |
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120 | HpdQEW[iqb]= HpdQEWaveL[iqb]; |
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121 | } |
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122 | return HpdQEW; |
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123 | } |
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124 | |
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125 | void HistoRichTbMaterialProperties(RichTbRunConfig* RConfig) { |
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126 | |
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127 | |
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128 | G4int AerogelNum=0; |
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129 | G4double waL=200; |
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130 | |
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131 | G4double stepsize=7.0; |
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132 | |
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133 | // G4double thickness=(GetCurAerogelLength(AerogelNum))/cm; |
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134 | AerogelType CurAerogelType=RConfig-> GetCurAerogelType(AerogelNum); |
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135 | |
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136 | |
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137 | |
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138 | G4double Aparam=0.; |
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139 | G4double Cparam=0.; |
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140 | if(CurAerogelType == AerogelTypeA ) { |
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141 | Aparam = AerogelTypeATotTrans; |
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142 | Cparam = AerogelTypeAClarity*cm/(micrometer*micrometer*micrometer*micrometer); |
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143 | } |
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144 | |
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145 | |
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146 | |
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147 | for(G4int Iabin=0; Iabin<100; Iabin ++ ) { |
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148 | |
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149 | // G4double waLInmu = waL/1000.0; |
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150 | // G4double Aetr = Aparam* std::exp(-Cparam * thickness / std::pow(waLInmu,4) ); |
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151 | |
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152 | waL += stepsize; |
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153 | } |
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154 | |
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155 | |
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156 | |
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157 | |
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158 | |
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159 | |
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160 | G4int ihpdqa; |
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161 | ihpdqa=0; |
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162 | std::vector<G4double>WaveL1 = InitializeHpdWaveL(ihpdqa); |
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163 | std::vector<G4double>QEff1 = InitializeHpdQE(ihpdqa); |
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164 | |
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165 | |
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166 | |
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167 | } |
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168 | |
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169 | |
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170 | std::vector<G4int> getDeadPixelList(G4int ihpdNum, G4int){ |
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171 | std::vector<G4int>DeadPixelList; |
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172 | // G4int isc,ipsc; |
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173 | |
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174 | |
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175 | if(G4int(DeadPixelList.size()) > MaxNumDeadPixelPerHpdSect ){ |
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176 | G4cout<<" Too Many dead Pixels in Hpd "<<DeadPixelList.size() |
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177 | <<" in Hpd "<<ihpdNum<<G4endl; |
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178 | } |
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179 | |
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180 | return DeadPixelList; |
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181 | } |
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182 | std::vector<G4double>GetAerogelRScatLength(AerogelType CurrentAerogelType) { |
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183 | |
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184 | std::vector<G4double>AgelRayleighScatLength(NumPhotWaveLengthBins); |
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185 | std::vector<G4double>AgelPhotW = InitAgelPhotW(); |
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186 | G4double aClarity=0.; |
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187 | if(CurrentAerogelType == AerogelTypeA ) { |
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188 | aClarity=AerogelTypeAClarity/(micrometer*micrometer*micrometer*micrometer); |
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189 | |
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190 | }else if (CurrentAerogelType == AerogelTypeB ) { |
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191 | aClarity=AerogelTypeBClarity/(micrometer*micrometer*micrometer*micrometer); |
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192 | }else if (CurrentAerogelType == AerogelTypeC ) { |
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193 | aClarity=AerogelTypeCClarity/(micrometer*micrometer*micrometer*micrometer); |
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194 | |
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195 | |
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196 | }else if (CurrentAerogelType == AerogelTypeD ) { |
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197 | aClarity=AerogelTypeDClarity/(micrometer*micrometer*micrometer*micrometer); |
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198 | |
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199 | }else if (CurrentAerogelType == AerogelTypeE ) { |
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200 | aClarity=AerogelTypeEClarity/(micrometer*micrometer*micrometer*micrometer); |
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201 | |
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202 | }else {G4cout<<"Unknown Aerogel Type for Rayleigh Scat Length "<<G4endl; } |
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203 | |
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204 | if(aClarity != 0.0 ) { |
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205 | for(G4int ibinw=0; ibinw<NumPhotWaveLengthBins; ibinw++ ){ |
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206 | G4double ephoton=AgelPhotW[ibinw]/eV; |
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207 | //In the following the 1000 is to convert form nm to micrometer |
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208 | G4double wphoton=(PhotMomWaveConv/ephoton)/1000.0; |
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209 | AgelRayleighScatLength[ibinw]=(std::pow(wphoton,4))/aClarity; |
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210 | |
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211 | } |
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212 | } |
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213 | |
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214 | return AgelRayleighScatLength; |
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215 | } |
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216 | G4double GetCurrentBulkTrans(G4double currentMatRefIndex, |
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217 | G4double currentNeighbourRefIndex, |
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218 | G4double MaxTotMeasuredTransmission){ |
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219 | G4double ATrans=MaxTotMeasuredTransmission; |
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220 | // G4double ePhot; |
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221 | // in the following the energy of the photon is not used since |
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222 | // it is only an approximate calulation. |
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223 | G4double na= currentMatRefIndex; |
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224 | G4double nb= currentNeighbourRefIndex; |
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225 | G4double LossAtEntrance=std::pow(((na-nb)/(na+nb)),2.0); |
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226 | G4double LossAtExit=std::pow(((nb-na)/(nb+na)),2.0); |
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227 | |
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228 | G4double LightLossAtExternalSurface= LossAtEntrance+ LossAtExit; |
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229 | |
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230 | ATrans += LightLossAtExternalSurface; |
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231 | if(ATrans >= 1.0) ATrans=1.0; |
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232 | return ATrans; |
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233 | } |
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234 | |
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235 | |
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236 | |
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237 | |
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238 | |
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