| 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 "G4NeutronHPFissionBaseFS.hh"
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| 31 | #include "G4ReactionProduct.hh"
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| 32 | #include "G4Nucleus.hh"
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| 33 | #include "G4Proton.hh"
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| 34 | #include "G4Deuteron.hh"
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| 35 | #include "G4Triton.hh"
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| 36 | #include "G4Alpha.hh"
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| 37 | #include "G4ThreeVector.hh"
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| 38 | #include "G4LorentzVector.hh"
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| 39 | #include "G4NeutronHPDataUsed.hh"
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| 40 |
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| 41 | void G4NeutronHPFissionBaseFS::Init (G4double A, G4double Z, G4String & dirName, G4String & bit)
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| 42 | {
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| 43 | G4String tString = dirName;
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| 44 | G4bool dbool;
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| 45 | G4NeutronHPDataUsed aFile = theNames.GetName(static_cast<G4int>(A), static_cast<G4int>(Z), tString, bit, dbool);
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| 46 | G4String filename = aFile.GetName();
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| 47 | theBaseA = aFile.GetA();
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| 48 | theBaseZ = aFile.GetZ();
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| 49 | if(!dbool || ( Z<2.5 && ( std::abs(theBaseZ - Z)>0.0001 || std::abs(theBaseA - A)>0.0001) ) )
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| 50 | {
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| 51 | hasAnyData = false;
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| 52 | hasFSData = false;
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| 53 | hasXsec = false;
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| 54 | return; // no data for exactly this isotope.
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| 55 | }
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| 56 | std::ifstream theData(filename, std::ios::in);
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| 57 | G4int dummy;
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| 58 | if(!(theData))
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| 59 | {
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| 60 | theData.close();
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| 61 | hasFSData = false;
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| 62 | hasXsec = false;
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| 63 | hasAnyData = false;
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| 64 | return; // no data for this FS for this isotope
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| 65 | }
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| 66 | theData >> dummy>>dummy;
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| 67 | G4int total;
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| 68 | theData >> total;
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| 69 | theXsection->Init(theData, total, eV);
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| 70 | if (!(theData >> dummy))
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| 71 | {
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| 72 | hasFSData = false;
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| 73 | theData.close();
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| 74 | return;
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| 75 | }
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| 76 | theData >> dummy;
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| 77 |
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| 78 | theAngularDistribution.Init(theData);
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| 79 |
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| 80 | theData >> dummy >> dummy;
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| 81 |
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| 82 | theEnergyDistribution.Init(theData);
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| 83 | theData.close();
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| 84 |
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| 85 | }
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| 86 |
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| 87 | G4DynamicParticleVector * G4NeutronHPFissionBaseFS::ApplyYourself(G4int nPrompt)
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| 88 | {
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| 89 | // if therere were no data for this isotope, break out.
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| 90 | if(!HasFSData()) { return 0; }
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| 91 |
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| 92 | G4int i;
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| 93 | G4DynamicParticleVector * aResult = new G4DynamicParticleVector;
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| 94 | G4ReactionProduct boosted;
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| 95 | boosted.Lorentz(theNeutron, theTarget);
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| 96 | G4double eKinetic = boosted.GetKineticEnergy();
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| 97 |
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| 98 | // Build neutrons
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| 99 | G4ReactionProduct * theNeutrons = new G4ReactionProduct[nPrompt];
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| 100 | for(i=0; i<nPrompt; i++)
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| 101 | {
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| 102 | theNeutrons[i].SetDefinition(G4Neutron::Neutron());
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| 103 | }
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| 104 |
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| 105 | // sample energies
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| 106 | G4int dummy;
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| 107 | for(i=0; i<nPrompt; i++)
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| 108 | {
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| 109 | // always in the lab system (if file-5)
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| 110 | theNeutrons[i].SetKineticEnergy(theEnergyDistribution.Sample(eKinetic, dummy));
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| 111 | }
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| 112 |
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| 113 | // sample neutron angular distribution
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| 114 | for(i=0; i<nPrompt; i++)
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| 115 | {
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| 116 | theAngularDistribution.SampleAndUpdate(theNeutrons[i]);
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| 117 | }
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| 118 |
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| 119 | // already in lab. Add neutrons to dynamic particle vector
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| 120 | for(i=0; i<nPrompt; i++)
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| 121 | {
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| 122 | G4DynamicParticle * it = new G4DynamicParticle;
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| 123 | it->SetDefinition(theNeutrons[i].GetDefinition());
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| 124 | it->SetMomentum(theNeutrons[i].GetMomentum());
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| 125 | aResult->push_back(it);
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| 126 | }
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| 127 | delete [] theNeutrons;
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| 128 |
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| 129 | // return the result
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| 130 | return aResult;
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| 131 | }
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