[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 | // This software was developed by Lawrence Livermore National Laboratory. |
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| 28 | // |
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| 29 | // Redistribution and use in source and binary forms, with or without |
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| 30 | // modification, are permitted provided that the following conditions are met: |
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| 31 | // |
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| 32 | // 1. Redistributions of source code must retain the above copyright notice, |
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| 33 | // this list of conditions and the following disclaimer. |
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| 34 | // 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 35 | // this list of conditions and the following disclaimer in the documentation |
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| 36 | // and/or other materials provided with the distribution. |
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| 37 | // 3. The name of the author may not be used to endorse or promote products |
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| 38 | // derived from this software without specific prior written permission. |
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| 39 | // |
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| 40 | // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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| 41 | // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 42 | // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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| 43 | // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 44 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 45 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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| 46 | // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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| 47 | // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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| 48 | // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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| 49 | // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 50 | // |
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| 51 | // Copyright (c) 2006 The Regents of the University of California. |
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| 52 | // All rights reserved. |
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| 53 | // UCRL-CODE-224807 |
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| 54 | // |
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| 55 | // |
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| 56 | // $Id: G4FissionLibrary.cc,v 1.4 2007/06/01 14:02:08 gcosmo Exp $ |
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| 57 | // |
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| 58 | // neutron_hp -- source file |
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| 59 | // J.M. Verbeke, Jan-2007 |
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| 60 | // A low energy neutron-induced fission model. |
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| 61 | // |
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| 62 | |
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| 63 | #include "G4FissionLibrary.hh" |
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| 64 | |
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| 65 | G4FissionLibrary::G4FissionLibrary() |
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| 66 | : G4NeutronHPFinalState() |
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| 67 | { |
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| 68 | hasXsec = false; |
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| 69 | } |
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| 70 | |
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| 71 | G4FissionLibrary::~G4FissionLibrary() |
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| 72 | { |
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| 73 | } |
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| 74 | |
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| 75 | G4NeutronHPFinalState * G4FissionLibrary::New() |
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| 76 | { |
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| 77 | G4FissionLibrary * theNew = new G4FissionLibrary; |
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| 78 | return theNew; |
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| 79 | } |
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| 80 | |
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| 81 | void G4FissionLibrary::Init (G4double A, G4double Z, G4String & dirName, G4String &) |
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| 82 | { |
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| 83 | G4String tString = "/FS/"; |
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| 84 | G4bool dbool; |
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| 85 | theIsotope = static_cast<G4int>(1000*Z+A); |
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| 86 | G4NeutronHPDataUsed aFile = theNames.GetName(static_cast<G4int>(A), static_cast<G4int>(Z), dirName, tString, dbool); |
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| 87 | G4String filename = aFile.GetName(); |
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| 88 | |
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| 89 | if(!dbool) |
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| 90 | { |
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| 91 | hasAnyData = false; |
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| 92 | hasFSData = false; |
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| 93 | hasXsec = false; |
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| 94 | return; |
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| 95 | } |
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| 96 | std::ifstream theData(filename, std::ios::in); |
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| 97 | |
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| 98 | // here it comes |
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| 99 | G4int infoType, dataType; |
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| 100 | hasFSData = false; |
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| 101 | while (theData >> infoType) |
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| 102 | { |
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| 103 | hasFSData = true; |
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| 104 | theData >> dataType; |
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| 105 | switch(infoType) |
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| 106 | { |
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| 107 | case 1: |
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| 108 | if(dataType==4) theNeutronAngularDis.Init(theData); |
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| 109 | if(dataType==5) thePromptNeutronEnDis.Init(theData); |
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| 110 | if(dataType==12) theFinalStatePhotons.InitMean(theData); |
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| 111 | if(dataType==14) theFinalStatePhotons.InitAngular(theData); |
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| 112 | if(dataType==15) theFinalStatePhotons.InitEnergies(theData); |
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| 113 | break; |
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| 114 | case 2: |
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| 115 | if(dataType==1) theFinalStateNeutrons.InitMean(theData); |
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| 116 | break; |
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| 117 | case 3: |
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| 118 | if(dataType==1) theFinalStateNeutrons.InitDelayed(theData); |
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| 119 | if(dataType==5) theDelayedNeutronEnDis.Init(theData); |
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| 120 | break; |
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| 121 | case 4: |
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| 122 | if(dataType==1) theFinalStateNeutrons.InitPrompt(theData); |
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| 123 | break; |
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| 124 | case 5: |
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| 125 | if(dataType==1) theEnergyRelease.Init(theData); |
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| 126 | break; |
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| 127 | default: |
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| 128 | G4cout << "G4FissionLibrary::Init: unknown data type"<<dataType<<G4endl; |
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| 129 | throw G4HadronicException(__FILE__, __LINE__, "G4FissionLibrary::Init: unknown data type"); |
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| 130 | break; |
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| 131 | } |
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| 132 | } |
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| 133 | targetMass = theFinalStateNeutrons.GetTargetMass(); |
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| 134 | theData.close(); |
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| 135 | } |
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| 136 | |
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| 137 | G4HadFinalState * G4FissionLibrary::ApplyYourself(const G4HadProjectile & theTrack) |
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| 138 | { |
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| 139 | theResult.Clear(); |
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| 140 | |
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| 141 | // prepare neutron |
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| 142 | G4double eKinetic = theTrack.GetKineticEnergy(); |
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| 143 | const G4HadProjectile *incidentParticle = &theTrack; |
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| 144 | G4ReactionProduct theNeutron( const_cast<G4ParticleDefinition *>(incidentParticle->GetDefinition()) ); |
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| 145 | theNeutron.SetMomentum( incidentParticle->Get4Momentum().vect() ); |
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| 146 | theNeutron.SetKineticEnergy( eKinetic ); |
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| 147 | |
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| 148 | // prepare target |
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| 149 | G4Nucleus aNucleus; |
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| 150 | G4ReactionProduct theTarget; |
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| 151 | G4ThreeVector neuVelo = (1./incidentParticle->GetDefinition()->GetPDGMass())*theNeutron.GetMomentum(); |
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| 152 | theTarget = aNucleus.GetBiasedThermalNucleus( targetMass, neuVelo, theTrack.GetMaterial()->GetTemperature()); |
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| 153 | |
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| 154 | // set neutron and target in the FS classes |
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| 155 | theNeutronAngularDis.SetNeutron(theNeutron); |
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| 156 | theNeutronAngularDis.SetTarget(theTarget); |
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| 157 | |
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| 158 | // boost to target rest system |
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| 159 | theNeutron.Lorentz(theNeutron, -1*theTarget); |
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| 160 | |
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| 161 | eKinetic = theNeutron.GetKineticEnergy(); |
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| 162 | |
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| 163 | // dice neutron and gamma multiplicities, energies and momenta in Lab. @@ |
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| 164 | // no energy conservation on an event-to-event basis. we rely on the data to be ok. @@ |
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| 165 | // also for mean, we rely on the consistency of the data. @@ |
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| 166 | |
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| 167 | G4int nPrompt=0, gPrompt=0; |
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| 168 | SampleMult(theTrack, &nPrompt, &gPrompt, eKinetic); |
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| 169 | |
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| 170 | // Build neutrons and add them to dynamic particle vector |
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| 171 | G4double momentum; |
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| 172 | for(G4int i=0; i<nPrompt; i++) |
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| 173 | { |
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| 174 | G4DynamicParticle * it = new G4DynamicParticle; |
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| 175 | it->SetDefinition(G4Neutron::Neutron()); |
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| 176 | it->SetKineticEnergy(getneng_(&i)*MeV); |
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| 177 | momentum = it->GetTotalMomentum(); |
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| 178 | G4ThreeVector temp(momentum*getndircosu_(&i), |
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| 179 | momentum*getndircosv_(&i), |
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| 180 | momentum*getndircosw_(&i)); |
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| 181 | it->SetMomentum( temp ); |
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| 182 | // it->SetGlobalTime(getnage_(&i)*second); |
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| 183 | theResult.AddSecondary(it); |
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| 184 | // G4cout <<"G4FissionLibrary::ApplyYourself: energy of prompt neutron " << i << " = " << it->GetKineticEnergy()<<G4endl; |
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| 185 | } |
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| 186 | |
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| 187 | // Build gammas, lorentz transform them, and add them to dynamic particle vector |
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| 188 | for(G4int i=0; i<gPrompt; i++) |
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| 189 | { |
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| 190 | G4ReactionProduct * thePhoton = new G4ReactionProduct; |
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| 191 | thePhoton->SetDefinition(G4Gamma::Gamma()); |
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| 192 | thePhoton->SetKineticEnergy(getpeng_(&i)*MeV); |
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| 193 | momentum = thePhoton->GetTotalMomentum(); |
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| 194 | G4ThreeVector temp(momentum*getpdircosu_(&i), |
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| 195 | momentum*getpdircosv_(&i), |
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| 196 | momentum*getpdircosw_(&i)); |
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| 197 | thePhoton->SetMomentum( temp ); |
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| 198 | thePhoton->Lorentz(*thePhoton, -1.*theTarget); |
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| 199 | |
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| 200 | G4DynamicParticle * it = new G4DynamicParticle; |
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| 201 | it->SetDefinition(thePhoton->GetDefinition()); |
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| 202 | it->SetMomentum(thePhoton->GetMomentum()); |
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| 203 | // it->SetGlobalTime(getpage_(&i)*second); |
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| 204 | // G4cout <<"G4FissionLibrary::ApplyYourself: energy of prompt photon " << i << " = " << it->GetKineticEnergy()<<G4endl; |
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| 205 | theResult.AddSecondary(it); |
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| 206 | delete thePhoton; |
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| 207 | } |
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| 208 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of secondaries = "<<theResult.GetNumberOfSecondaries()<< G4endl; |
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| 209 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of induced prompt neutron = "<<nPrompt<<G4endl; |
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| 210 | // G4cout <<"G4FissionLibrary::ApplyYourself: Number of induced prompt photons = "<<gPrompt<<G4endl; |
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| 211 | |
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| 212 | // finally deal with local energy depositions. |
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| 213 | G4double eDepByFragments = theEnergyRelease.GetFragmentKinetic(); |
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| 214 | theResult.SetLocalEnergyDeposit(eDepByFragments); |
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| 215 | // G4cout << "G4FissionLibrary::local energy deposit" << eDepByFragments<<G4endl; |
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| 216 | // clean up the primary neutron |
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| 217 | theResult.SetStatusChange(stopAndKill); |
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| 218 | return &theResult; |
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| 219 | } |
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| 220 | |
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| 221 | void G4FissionLibrary::SampleMult(const G4HadProjectile & theTrack, G4int* nPrompt, |
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| 222 | G4int* gPrompt, G4double eKinetic) |
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| 223 | { |
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| 224 | G4double promptNeutronMulti = 0; |
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| 225 | promptNeutronMulti = theFinalStateNeutrons.GetPrompt(eKinetic); // prompt nubar from Geant |
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| 226 | G4double delayedNeutronMulti = 0; |
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| 227 | delayedNeutronMulti = theFinalStateNeutrons.GetDelayed(eKinetic); // delayed nubar from Geant |
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| 228 | |
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| 229 | G4double time = theTrack.GetGlobalTime()/second; |
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| 230 | if(delayedNeutronMulti==0&&promptNeutronMulti==0) { |
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| 231 | // no data for prompt and delayed neutrons in Geant |
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| 232 | // but there is perhaps data for the total neutron multiplicity, in which case |
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| 233 | // we use it for prompt neutron emission |
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| 234 | G4double totalNeutronMulti = theFinalStateNeutrons.GetMean(eKinetic); |
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| 235 | genfissevt_(&theIsotope, &time, &totalNeutronMulti, &eKinetic); |
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| 236 | } else { |
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| 237 | // prompt nubar != 0 || delayed nubar != 0 |
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| 238 | genfissevt_(&theIsotope, &time, &promptNeutronMulti, &eKinetic); |
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| 239 | } |
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| 240 | *nPrompt = getnnu_(); |
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| 241 | if (*nPrompt == -1) *nPrompt = 0; // the fission library libFission.a has no data for neutrons |
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| 242 | *gPrompt = getpnu_(); |
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| 243 | if (*gPrompt == -1) *gPrompt = 0; // the fission library libFission.a has no data for gammas |
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| 244 | } |
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| 245 | |
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