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Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // This software was developed by Lawrence Livermore National Laboratory. 00028 // 00029 // Redistribution and use in source and binary forms, with or without 00030 // modification, are permitted provided that the following conditions are met: 00031 // 00032 // 1. Redistributions of source code must retain the above copyright notice, 00033 // this list of conditions and the following disclaimer. 00034 // 2. Redistributions in binary form must reproduce the above copyright notice, 00035 // this list of conditions and the following disclaimer in the documentation 00036 // and/or other materials provided with the distribution. 00037 // 3. The name of the author may not be used to endorse or promote products 00038 // derived from this software without specific prior written permission. 00039 // 00040 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00041 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00042 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 00043 // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00044 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00045 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 00046 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 00047 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 00048 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 00049 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00050 // 00051 // Copyright (c) 2006 The Regents of the University of California. 00052 // All rights reserved. 00053 // UCRL-CODE-224807 00054 // 00055 // 00056 // $Id: G4FissLib.cc 69860 2013-05-16 14:39:02Z gcosmo $ 00057 // 00058 // neutron_hp -- source file 00059 // J.M. Verbeke, Jan-2007 00060 // A prototype of the low energy neutron transport model. 00061 // 00062 #include "G4FissLib.hh" 00063 #include "G4SystemOfUnits.hh" 00064 00065 G4FissLib::G4FissLib() 00066 :xSec(0) 00067 { 00068 SetMinEnergy(0.0); 00069 SetMaxEnergy(20.*MeV); 00070 if(!getenv("G4NEUTRONHPDATA")) { 00071 G4cout << "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files." << G4endl; 00072 throw G4HadronicException(__FILE__, __LINE__, "Please setenv G4NEUTRONHPDATA to point to the neutron cross-section files."); 00073 } 00074 dirName = getenv("G4NEUTRONHPDATA"); 00075 G4String tString = "/Fission/"; 00076 dirName = dirName + tString; 00077 numEle = G4Element::GetNumberOfElements(); 00078 theFission = new G4NeutronHPChannel[numEle]; 00079 00080 for (G4int i=0; i<numEle; i++) 00081 { 00082 // G4cout << "G4FissLib::G4FissLib(): element "<< i << " : " << (*(G4Element::GetElementTable()))[i]->GetZ()<< G4endl; 00083 if((*(G4Element::GetElementTable()))[i]->GetZ()>89) 00084 { 00085 theFission[i].Init((*(G4Element::GetElementTable()))[i], dirName); 00086 theFission[i].Register(&theLibrary); 00087 } 00088 } 00089 } 00090 00091 G4FissLib::~G4FissLib() 00092 { 00093 delete [] theFission; 00094 } 00095 00096 G4HadFinalState* 00097 G4FissLib::ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus&) 00098 { 00099 const G4Material* theMaterial = aTrack.GetMaterial(); 00100 G4int n = theMaterial->GetNumberOfElements(); 00101 G4int index = theMaterial->GetElement(0)->GetIndex(); 00102 00103 if (n != 1) { 00104 xSec = new G4double[n]; 00105 G4double sum = 0; 00106 G4int i; 00107 G4int imat; 00108 const G4double * NumAtomsPerVolume = theMaterial->GetVecNbOfAtomsPerVolume(); 00109 G4double rWeight; 00110 G4NeutronHPThermalBoost aThermalE; 00111 for (i = 0; i < n; i++) { 00112 imat = theMaterial->GetElement(i)->GetIndex(); 00113 rWeight = NumAtomsPerVolume[i]; 00114 xSec[i] = theFission[imat].GetXsec(aThermalE.GetThermalEnergy(aTrack, 00115 theMaterial->GetElement(i), 00116 theMaterial->GetTemperature())); 00117 xSec[i] *= rWeight; 00118 sum+=xSec[i]; 00119 } 00120 00121 G4double random = G4UniformRand(); 00122 G4double running = 0; 00123 for (i = 0; i < n; i++) { 00124 running += xSec[i]; 00125 index = theMaterial->GetElement(i)->GetIndex(); 00126 if(random<=running/sum) break; 00127 } 00128 delete [] xSec; 00129 } 00130 00131 return theFission[index].ApplyYourself(aTrack); 00132 } 00133