[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 | // neutron_hp -- source file |
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| 27 | // J.P. Wellisch, Nov-1996 |
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| 28 | // A prototype of the low energy neutron transport model. |
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| 29 | // |
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| 30 | #include "G4NeutronHPLevel.hh" |
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| 31 | #include "G4NeutronHPGamma.hh" |
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| 32 | |
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| 33 | G4NeutronHPLevel::~G4NeutronHPLevel() |
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| 34 | { |
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| 35 | if(theGammas != 0) |
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| 36 | { |
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| 37 | for(G4int i=0; i<nGammas; i++) delete theGammas[i]; |
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| 38 | } |
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| 39 | delete [] theGammas; |
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| 40 | } |
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| 41 | |
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| 42 | void G4NeutronHPLevel::SetNumberOfGammas(G4int aGammas) |
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| 43 | { |
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| 44 | nGammas = aGammas; |
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| 45 | if(theGammas != 0) |
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| 46 | { |
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| 47 | for(G4int i=0; i<nGammas; i++) delete theGammas[i]; |
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| 48 | } |
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| 49 | delete [] theGammas; |
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| 50 | theGammas = new G4NeutronHPGamma * [nGammas]; |
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| 51 | } |
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| 52 | |
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| 53 | void G4NeutronHPLevel::SetGamma(G4int i, G4NeutronHPGamma * aGamma) |
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| 54 | { |
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| 55 | theGammas[i] = aGamma; |
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| 56 | SetLevelEnergy(aGamma->GetLevelEnergy()); |
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| 57 | } |
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| 58 | |
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| 59 | G4double G4NeutronHPLevel::GetGammaEnergy(G4int i) |
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| 60 | { |
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| 61 | return theGammas[i]->GetGammaEnergy(); |
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| 62 | } |
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| 63 | |
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| 64 | G4DynamicParticleVector * G4NeutronHPLevel::GetDecayGammas() |
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| 65 | { |
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| 66 | G4DynamicParticleVector * theResult; |
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| 67 | G4double sum = 0; |
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| 68 | G4double * running = new G4double[nGammas]; |
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| 69 | running[0] = 0; |
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| 70 | G4int i; |
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| 71 | for(i=0; i<nGammas; i++) |
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| 72 | { |
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| 73 | if(i!=0) running[i]=running[i-1]; |
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| 74 | running[i]+=theGammas[i]->GetWeight(); |
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| 75 | } |
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| 76 | sum = running[nGammas-1]; |
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| 77 | G4int it(0); |
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| 78 | G4double random = G4UniformRand(); |
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| 79 | for(i=0; i<nGammas; i++) |
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| 80 | { |
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| 81 | it = i; |
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| 82 | if(random*sum < running[i]) break; |
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| 83 | } |
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| 84 | delete [] running; |
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| 85 | theResult = theGammas[it]->GetDecayGammas(); |
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| 86 | return theResult; |
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| 87 | } |
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