[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: G4FissLib.cc,v 1.2 2007/06/27 09:57:42 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 prototype of the low energy neutron transport model. |
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| 61 | // |
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| 62 | #include "G4FissLib.hh" |
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| 63 | |
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| 64 | G4FissLib::G4FissLib() |
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| 65 | { |
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| 66 | SetMinEnergy( 0.0 ); |
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| 67 | SetMaxEnergy( 20.*MeV ); |
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| 68 | if(!getenv("G4NEUTRONHPDATA")) { |
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| 69 | G4cout << "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files." << G4endl; |
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| 70 | throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files."); |
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| 71 | } |
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| 72 | dirName = getenv("G4NEUTRONHPDATA"); |
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| 73 | G4String tString = "/Fission/"; |
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| 74 | dirName = dirName + tString; |
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| 75 | numEle = G4Element::GetNumberOfElements(); |
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| 76 | theFission = new G4NeutronHPChannel[numEle]; |
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| 77 | |
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| 78 | for (G4int i=0; i<numEle; i++) |
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| 79 | { |
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| 80 | // G4cout << "G4FissLib::G4FissLib(): element "<< i << " : " << (*(G4Element::GetElementTable()))[i]->GetZ()<< G4endl; |
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| 81 | if((*(G4Element::GetElementTable()))[i]->GetZ()>89) |
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| 82 | { |
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| 83 | theFission[i].Init((*(G4Element::GetElementTable()))[i], dirName); |
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| 84 | theFission[i].Register(&theLibrary); |
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| 85 | } |
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| 86 | } |
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| 87 | } |
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| 88 | |
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| 89 | G4FissLib::~G4FissLib() |
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| 90 | { |
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| 91 | delete [] theFission; |
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| 92 | } |
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| 93 | |
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| 94 | G4HadFinalState * G4FissLib::ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& ) |
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| 95 | { |
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| 96 | const G4Material * theMaterial = aTrack.GetMaterial(); |
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| 97 | G4int n = theMaterial->GetNumberOfElements(); |
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| 98 | G4int index = theMaterial->GetElement(0)->GetIndex(); |
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| 99 | if(n!=1) |
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| 100 | { |
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| 101 | xSec = new G4double[n]; |
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| 102 | G4double sum=0; |
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| 103 | G4int i, index; |
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| 104 | const G4double * NumAtomsPerVolume = theMaterial->GetVecNbOfAtomsPerVolume(); |
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| 105 | G4double rWeight; |
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| 106 | G4NeutronHPThermalBoost aThermalE; |
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| 107 | for (i=0; i<n; i++) |
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| 108 | { |
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| 109 | index = theMaterial->GetElement(i)->GetIndex(); |
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| 110 | rWeight = NumAtomsPerVolume[i]; |
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| 111 | xSec[i] = theFission[index].GetXsec(aThermalE.GetThermalEnergy(aTrack, |
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| 112 | theMaterial->GetElement(i), |
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| 113 | theMaterial->GetTemperature())); |
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| 114 | xSec[i] *= rWeight; |
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| 115 | sum+=xSec[i]; |
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| 116 | } |
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| 117 | G4double random = G4UniformRand(); |
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| 118 | G4double running = 0; |
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| 119 | for (i=0; i<n; i++) |
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| 120 | { |
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| 121 | running += xSec[i]; |
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| 122 | index = theMaterial->GetElement(i)->GetIndex(); |
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| 123 | if(random<=running/sum) break; |
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| 124 | } |
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| 125 | delete [] xSec; |
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| 126 | } |
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| 127 | |
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| 128 | return theFission[index].ApplyYourself(aTrack); |
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| 129 | } |
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| 130 | |
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