| 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 | // AerogelRefData.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 "AerogelRefData.hh"
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| 35 | #include "RichTbGeometryParameters.hh"
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| 36 | #include "RichTbMaterialParameters.hh"
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| 37 | AerogelRefData::AerogelRefData(G4String AgelRefIndFile)
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| 38 | :NumberOfRefIndBins(NumAerogelRefIndexPhotonEnergyBins),
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| 39 | StdAerogelRefphotE(std::vector<G4double>(NumAerogelRefIndexPhotonEnergyBins)),
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| 40 | StdAerogelRefIndexValue(std::vector<G4double>(NumAerogelRefIndexPhotonEnergyBins)),
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| 41 | AerogelRefIndShift(std::vector<G4double>( MaxNumberOfAerogelTypes)),
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| 42 | AerogelWavelengthRef(std::vector<G4double>( MaxNumberOfAerogelTypes)) {
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| 43 |
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| 44 | AerogelRefIndexFileName=AgelRefIndFile;
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| 45 |
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| 46 | StdAerogelNominalRefractiveIndex= StdAerogelNominalRefIndex;
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| 47 |
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| 48 | ReadStdAerogelRefIndex();
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| 49 | G4double AerogelRefEnergy,AerogelReferenceRefInd;
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| 50 | for(G4int ityp=0; ityp< MaxNumberOfAerogelTypes; ityp++ ){
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| 51 | AerogelWavelengthRef[ityp]=AerogelReferenceRefIndWavelength[ityp];
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| 52 | AerogelRefEnergy=
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| 53 | (PhotMomWaveConv/(AerogelWavelengthRef[ityp]/nanometer))*eV;
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| 54 |
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| 55 | AerogelReferenceRefInd = GetStdAgelRefIndexE(AerogelRefEnergy);
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| 56 | AerogelRefIndShift[ityp] = AerogelReferenceRefInd -
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| 57 | StdAerogelNominalRefractiveIndex ;
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| 58 | }
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| 59 |
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| 60 | }
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| 61 | G4double AerogelRefData::GetStdAgelRefIndexE(G4double StdAgelRefEnergy) {
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| 62 |
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| 63 | G4double refint= StdAerogelNominalRefractiveIndex;
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| 64 | if(StdAgelRefEnergy <= StdAerogelRefphotE[0] ) {
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| 65 | refint= StdAerogelRefphotE[0];
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| 66 | G4cout<<"Ref index reference value outside bounds "<<G4endl;
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| 67 |
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| 68 | }
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| 69 | if(StdAgelRefEnergy > StdAerogelRefphotE[ NumberOfRefIndBins-1 ] ) {
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| 70 | refint= StdAerogelRefphotE[ NumberOfRefIndBins-1 ];
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| 71 | G4cout<<"Ref index reference value outside bounds "<<G4endl;
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| 72 |
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| 73 | }
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| 74 |
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| 75 | for(G4int iabin=0; iabin < NumberOfRefIndBins-1 ; iabin++ ){
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| 76 |
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| 77 | G4double E1= StdAerogelRefphotE[iabin];
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| 78 | G4double E2= StdAerogelRefphotE[iabin+1];
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| 79 |
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| 80 | if(StdAgelRefEnergy > E1 && StdAgelRefEnergy <= E2 && E1 != E2 ){
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| 81 |
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| 82 | //Now interpolate
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| 83 | G4double r1= StdAerogelRefIndexValue[iabin];
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| 84 | G4double r2= StdAerogelRefIndexValue[iabin+1];
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| 85 | G4double slp=(r2-r1)/(E2-E1);
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| 86 | G4double ain= r1-slp*E1;
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| 87 | refint= slp*StdAgelRefEnergy + ain;
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| 88 | break;
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| 89 | }
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| 90 |
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| 91 | }
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| 92 |
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| 93 | return refint;
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| 94 |
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| 95 | }
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| 96 | void AerogelRefData::ReadStdAerogelRefIndex() {
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| 97 |
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| 98 | const char* StdAerogelRefIndFile= AerogelRefIndexFileName.c_str();
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| 99 | if( StdAerogelRefIndFile == 0 ){
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| 100 | G4cout<<" Aerogel RefIndex Input file missing"
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| 101 | << " Please provide the correct file name "
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| 102 | <<G4endl;
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| 103 | }else {
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| 104 |
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| 105 | G4cout<<"Now reading Std Aerogel Ref Index from "
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| 106 | <<StdAerogelRefIndFile<<G4endl;
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| 107 | std::ifstream finpga(StdAerogelRefIndFile);
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| 108 | G4double ephot,rind;
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| 109 | for (G4int fbin=0; fbin< NumberOfRefIndBins ; fbin++){
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| 110 | finpga>>ephot;
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| 111 | finpga>>rind;
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| 112 | StdAerogelRefphotE[fbin]=ephot*eV;
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| 113 | StdAerogelRefIndexValue[fbin]=rind;
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| 114 | //for test avoid the variation in ref index. SE 18-10-01
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| 115 | // StdAerogelRefIndexValue[fbin]= StdAerogelNominalRefractiveIndex;
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| 116 |
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| 117 | }
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| 118 |
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | std::vector<G4double> AerogelRefData::GetCurAerogelRefIndValueVect (G4int AerogelTnum ) {
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| 123 | // no test for tdr rich. now put back to TB conditions.
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| 124 | std::vector<G4double>CAgel(NumberOfRefIndBins);
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| 125 | // AerogelType Ctype;
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| 126 | G4double CRn = GetRefnominal( AerogelTnum );
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| 127 | for (G4int ib=0; ib < NumberOfRefIndBins; ib++ ){
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| 128 |
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| 129 | CAgel[ib]= StdAerogelRefIndexValue[ib]
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| 130 | - StdAerogelNominalRefractiveIndex-AerogelRefIndShift[ AerogelTnum] + CRn;
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| 131 |
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| 132 | }
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| 133 | return CAgel;
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| 134 | }
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| 135 |
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| 136 | G4double AerogelRefData:: GetCurAerogelRefIndValue( G4int rbinw , G4int AerogelTnum ){
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| 137 | // no test for tdr. now in TB conditions.
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| 138 | G4double crn= GetRefnominal( AerogelTnum );
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| 139 | return StdAerogelRefIndexValue[rbinw]
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| 140 | - StdAerogelNominalRefractiveIndex-AerogelRefIndShift[ AerogelTnum] +crn;
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| 141 | // - StdAerogelNominalRefractiveIndex-AerogelRefIndShift[ AerogelTnum] +crn;
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| 142 | // return StdAerogelRefIndexValue[rbinw]-1.03269+crn;
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| 143 | }
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| 144 |
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| 145 | G4double AerogelRefData::GetRefnominal(G4int AgelTnum ) {
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| 146 |
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| 147 | G4double CRnominal = StdAerogelNominalRefractiveIndex;
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| 148 | if(AgelTnum == 0 ){
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| 149 |
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| 150 | CRnominal= AerogelTypeANominalRefIndex;
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| 151 | }else if (AgelTnum == 1 ) {
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| 152 |
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| 153 | CRnominal= AerogelTypeBNominalRefIndex;
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| 154 | }else if (AgelTnum == 2 ) {
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| 155 |
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| 156 | CRnominal= AerogelTypeCNominalRefIndex;
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| 157 | }else if (AgelTnum == 3 ) {
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| 158 |
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| 159 | CRnominal= AerogelTypeDNominalRefIndex;
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| 160 | }else if (AgelTnum == 4 ) {
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| 161 |
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| 162 | CRnominal= AerogelTypeENominalRefIndex;
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| 163 |
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| 164 | } else {G4cout<<"Unknown Aerogel Type "<<G4endl; }
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| 165 |
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| 166 | return CRnominal;
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| 167 | }
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| 168 |
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| 169 | AerogelType AerogelRefData::GetAerogelType(G4int AgelTnum ) {
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| 170 | AerogelType Ctype=AerogelTypeA;
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| 171 |
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| 172 | if(AgelTnum == 0 ){
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| 173 | Ctype=AerogelTypeA;
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| 174 |
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| 175 | }else if (AgelTnum == 1 ) {
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| 176 | Ctype=AerogelTypeB;
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| 177 |
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| 178 | }else if (AgelTnum == 2 ) {
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| 179 | Ctype=AerogelTypeC;
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| 180 |
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| 181 | }else if (AgelTnum == 3 ) {
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| 182 | Ctype=AerogelTypeD;
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| 183 |
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| 184 | }else if (AgelTnum == 4 ) {
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| 185 | Ctype=AerogelTypeE;
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| 186 |
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| 187 |
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| 188 | } else {G4cout<<"Unknown Aerogel Type "<<G4endl; }
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| 189 |
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| 190 | return Ctype;
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| 191 | }
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| 192 |
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| 193 | AerogelRefData::~AerogelRefData(){ ; }
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| 194 |
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| 195 |
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| 196 |
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| 197 |
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| 198 |
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| 199 |
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| 200 |
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| 201 |
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| 202 |
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