[819] | 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 | // |
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| 27 | // $Id: G4NeutronHPProduct.hh,v 1.12 2007/06/06 12:45:13 ahoward Exp $ |
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| 28 | // GEANT4 tag $Name: $ |
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| 29 | // |
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| 30 | #ifndef G4NeutronHPProduct_h |
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| 31 | #define G4NeutronHPProduct_h 1 |
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| 32 | |
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| 33 | #include "G4HadronicException.hh" |
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| 34 | #include "globals.hh" |
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| 35 | #include "G4NeutronHPVector.hh" |
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| 36 | #include "Randomize.hh" |
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| 37 | #include "G4ios.hh" |
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| 38 | #include <fstream> |
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| 39 | #include "globals.hh" |
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| 40 | #include "G4VNeutronHPEnergyAngular.hh" |
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| 41 | #include "G4ReactionProductVector.hh" |
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| 42 | |
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| 43 | #include "G4NeutronHPContEnergyAngular.hh" |
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| 44 | #include "G4NeutronHPDiscreteTwoBody.hh" |
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| 45 | #include "G4NeutronHPIsotropic.hh" |
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| 46 | #include "G4NeutronHPNBodyPhaseSpace.hh" |
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| 47 | #include "G4NeutronHPLabAngularEnergy.hh" |
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| 48 | |
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| 49 | class G4NeutronHPProduct |
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| 50 | { |
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| 51 | public: |
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| 52 | G4NeutronHPProduct() |
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| 53 | { |
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| 54 | theDist = 0; |
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| 55 | } |
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| 56 | ~G4NeutronHPProduct() |
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| 57 | { |
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| 58 | if(theDist != 0) delete theDist; |
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| 59 | } |
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| 60 | |
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| 61 | inline void Init(std::ifstream & aDataFile) |
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| 62 | { |
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| 63 | aDataFile >> theMassCode>>theMass>>theIsomerFlag>>theDistLaw |
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| 64 | >> theGroundStateQValue>>theActualStateQValue; |
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| 65 | theGroundStateQValue*= eV; |
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| 66 | theActualStateQValue*= eV; |
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| 67 | theYield.Init(aDataFile, eV); |
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| 68 | if(theDistLaw==0) |
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| 69 | { |
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| 70 | // distribution not known, use E-independent, isotropic angular distribution |
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| 71 | theDist = new G4NeutronHPIsotropic; |
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| 72 | } |
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| 73 | else if(theDistLaw == 1) |
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| 74 | { |
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| 75 | // Continuum energy-angular distribution |
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| 76 | theDist = new G4NeutronHPContEnergyAngular; |
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| 77 | } |
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| 78 | else if(theDistLaw == 2) |
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| 79 | { |
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| 80 | // Discrete 2-body scattering |
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| 81 | theDist = new G4NeutronHPDiscreteTwoBody; |
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| 82 | } |
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| 83 | else if(theDistLaw == 3) |
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| 84 | { |
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| 85 | // Isotropic emission |
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| 86 | theDist = new G4NeutronHPIsotropic; |
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| 87 | } |
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| 88 | else if(theDistLaw == 4) |
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| 89 | { |
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| 90 | // Discrete 2-body recoil modification |
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| 91 | // not used for now. @@@@ |
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| 92 | theDist = new G4NeutronHPDiscreteTwoBody; |
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| 93 | // the above is only temporary; |
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| 94 | // recoils need to be addressed |
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| 95 | // properly |
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| 96 | delete theDist; |
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| 97 | theDist = 0; |
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| 98 | } |
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| 99 | else if(theDistLaw == 5) |
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| 100 | { |
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| 101 | // charged particles only, to be used in a later stage. @@@@ |
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| 102 | } |
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| 103 | else if(theDistLaw == 6) |
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| 104 | { |
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| 105 | // N-Body phase space |
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| 106 | theDist = new G4NeutronHPNBodyPhaseSpace; |
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| 107 | } |
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| 108 | else if(theDistLaw == 7) |
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| 109 | { |
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| 110 | // Laboratory angular energy paraetrisation |
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| 111 | theDist = new G4NeutronHPLabAngularEnergy; |
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| 112 | } |
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| 113 | else |
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| 114 | { |
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| 115 | throw G4HadronicException(__FILE__, __LINE__, "distribution law unknown to G4NeutronHPProduct"); |
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| 116 | } |
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| 117 | if(theDist!=0) |
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| 118 | { |
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| 119 | theDist->SetQValue(theActualStateQValue); |
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| 120 | theDist->Init(aDataFile); |
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| 121 | } |
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| 122 | } |
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| 123 | |
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| 124 | G4ReactionProductVector * Sample(G4double anEnergy); |
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| 125 | |
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| 126 | G4double GetMeanYield(G4double anEnergy) |
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| 127 | { |
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| 128 | return theYield.GetY(anEnergy); |
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| 129 | } |
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| 130 | |
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| 131 | void SetNeutron(G4ReactionProduct * aNeutron) |
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| 132 | { |
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| 133 | theNeutron = aNeutron; |
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| 134 | } |
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| 135 | |
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| 136 | void SetTarget(G4ReactionProduct * aTarget) |
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| 137 | { |
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| 138 | theTarget = aTarget; |
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| 139 | } |
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| 140 | |
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| 141 | inline G4ReactionProduct * GetTarget() { return theTarget; } |
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| 142 | |
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| 143 | inline G4ReactionProduct * GetNeutron() { return theNeutron; } |
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| 144 | |
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| 145 | inline G4double MeanEnergyOfThisInteraction() |
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| 146 | { |
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| 147 | G4double result; |
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| 148 | if(theDist == 0) |
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| 149 | { |
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| 150 | result = 0; |
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| 151 | } |
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| 152 | else |
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| 153 | { |
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| 154 | result=theDist->MeanEnergyOfThisInteraction(); |
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| 155 | result *= theCurrentMultiplicity; |
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| 156 | } |
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| 157 | return result; |
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| 158 | } |
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| 159 | |
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| 160 | inline G4double GetQValue() { return theActualStateQValue; } |
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| 161 | private: |
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| 162 | |
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| 163 | // data members |
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| 164 | |
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| 165 | G4double theMassCode; |
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| 166 | G4double theMass; |
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| 167 | G4int theIsomerFlag; |
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| 168 | G4double theGroundStateQValue; |
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| 169 | G4double theActualStateQValue; |
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| 170 | G4int theDistLaw; // redundant |
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| 171 | G4NeutronHPVector theYield; |
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| 172 | G4VNeutronHPEnergyAngular * theDist; |
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| 173 | |
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| 174 | // Utility quantities |
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| 175 | |
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| 176 | G4ReactionProduct * theTarget; |
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| 177 | G4ReactionProduct * theNeutron; |
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| 178 | |
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| 179 | // cashed values |
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| 180 | |
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| 181 | G4int theCurrentMultiplicity; |
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| 182 | |
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| 183 | }; |
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| 184 | |
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| 185 | #endif |
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