| 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 |
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| 28 | #include "G4Types.hh"
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| 29 |
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| 30 | //#include <fstream>
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| 31 | //#include <sstream>
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| 32 | //#include <stdlib.h>
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| 33 | #include "G4HadronicProcess.hh"
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| 34 |
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| 35 | #include "G4HadProjectile.hh"
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| 36 | #include "G4ElementVector.hh"
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| 37 | #include "G4Track.hh"
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| 38 | #include "G4Step.hh"
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| 39 | #include "G4Element.hh"
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| 40 | #include "G4ParticleChange.hh"
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| 41 | #include "G4TransportationManager.hh"
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| 42 | #include "G4Navigator.hh"
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| 43 | #include "G4ProcessVector.hh"
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| 44 | #include "G4ProcessManager.hh"
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| 45 | #include "G4StableIsotopes.hh"
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| 46 | #include "G4HadTmpUtil.hh"
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| 47 |
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| 48 | #include "G4HadLeadBias.hh"
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| 49 | #include "G4HadronicException.hh"
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| 50 | #include "G4HadReentrentException.hh"
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| 51 |
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| 52 | #include "G4HadronicWhiteBoard.hh"
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| 53 |
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| 54 | #include "G4HadSignalHandler.hh"
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| 55 |
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| 56 | #include "G4HadronicProcessStore.hh"
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| 57 |
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| 58 | #include <typeinfo>
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| 59 |
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| 60 | namespace G4HadronicProcess_local
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| 61 | {
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| 62 | extern "C" void G4HadronicProcessHandler_1(int)
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| 63 | {
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| 64 | G4HadronicWhiteBoard::Instance().Dump();
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | G4IsoParticleChange * G4HadronicProcess::theIsoResult = 0;
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| 69 | G4IsoParticleChange * G4HadronicProcess::theOldIsoResult = 0;
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| 70 | G4bool G4HadronicProcess::isoIsEnabled = true;
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| 71 |
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| 72 | void G4HadronicProcess::
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| 73 | EnableIsotopeProductionGlobally() {isoIsEnabled = true;}
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| 74 |
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| 75 | void G4HadronicProcess::
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| 76 | DisableIsotopeProductionGlobally() {isoIsEnabled = false;}
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| 77 |
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| 78 | //////////////////////////////////////////////////////////////////
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| 79 |
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| 80 | G4HadronicProcess::G4HadronicProcess( const G4String &processName,
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| 81 | G4ProcessType aType ) :
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| 82 | G4VDiscreteProcess( processName, aType)
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| 83 | {
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| 84 | ModelingState = 0;
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| 85 | isoIsOnAnyway = -1;
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| 86 | theTotalResult = new G4ParticleChange();
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| 87 | theCrossSectionDataStore = new G4CrossSectionDataStore();
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| 88 | G4HadronicProcessStore::Instance()->Register(this);
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| 89 | aScaleFactor = 1;
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| 90 | xBiasOn = false;
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| 91 | G4HadronicProcess_debug_flag = false;
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| 92 | if(getenv("SwitchLeadBiasOn")) theBias.push_back(new G4HadLeadBias());
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| 93 | }
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| 94 |
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| 95 | G4HadronicProcess::~G4HadronicProcess()
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| 96 | {
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| 97 | G4HadronicProcessStore::Instance()->DeRegister(this);
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| 98 | delete theTotalResult;
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| 99 |
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| 100 | std::for_each(theProductionModels.begin(),
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| 101 | theProductionModels.end(), G4Delete());
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| 102 | std::for_each(theBias.begin(), theBias.end(), G4Delete());
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| 103 |
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| 104 | delete theOldIsoResult;
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| 105 | delete theIsoResult;
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| 106 | delete theCrossSectionDataStore;
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| 107 | }
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| 108 |
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| 109 | void G4HadronicProcess::RegisterMe( G4HadronicInteraction *a )
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| 110 | {
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| 111 | try{GetManagerPointer()->RegisterMe( a );}
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| 112 | catch(G4HadronicException & aE)
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| 113 | {
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| 114 | aE.Report(std::cout);
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| 115 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 116 | "Could not register G4HadronicInteraction");
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| 117 | }
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| 118 | G4HadronicProcessStore::Instance()->RegisterInteraction(this, a);
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| 119 | }
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| 120 |
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| 121 | void G4HadronicProcess::PreparePhysicsTable(const G4ParticleDefinition& p)
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| 122 | {
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| 123 | if(getenv("G4HadronicProcess_debug")) G4HadronicProcess_debug_flag = true;
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| 124 | G4HadronicProcessStore::Instance()->RegisterParticle(this, &p);
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| 125 | }
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| 126 |
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| 127 | void G4HadronicProcess::BuildPhysicsTable(const G4ParticleDefinition& p)
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| 128 | {
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| 129 | theCrossSectionDataStore->BuildPhysicsTable(p);
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| 130 | G4HadronicProcessStore::Instance()->PrintInfo(&p);
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| 131 | }
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| 132 |
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| 133 | G4double G4HadronicProcess::
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| 134 | GetMeanFreePath(const G4Track &aTrack, G4double, G4ForceCondition *)
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| 135 | {
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| 136 | try
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| 137 | {
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| 138 | ModelingState = 1;
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| 139 | theLastCrossSection = aScaleFactor*
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| 140 | theCrossSectionDataStore->GetCrossSection(aTrack.GetDynamicParticle(),
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| 141 | aTrack.GetMaterial());
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| 142 | }
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| 143 | catch(G4HadronicException aR)
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| 144 | {
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| 145 | aR.Report(G4cout);
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| 146 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 147 | "G4HadronicProcess::GetMeanFreePath failed");
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| 148 | }
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| 149 | G4double res = DBL_MAX;
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| 150 | if( theLastCrossSection > 0.0 ) res = 1.0/theLastCrossSection;
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| 151 | return res;
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| 152 | }
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| 153 |
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| 154 | G4double G4HadronicProcess::
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| 155 | GetMicroscopicCrossSection(const G4DynamicParticle *aParticle,
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| 156 | const G4Element *anElement,
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| 157 | G4double aTemp )
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| 158 | {
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| 159 | return
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| 160 | theCrossSectionDataStore->GetCrossSection(aParticle, anElement, aTemp);
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| 161 | }
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| 162 |
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| 163 | G4VParticleChange *G4HadronicProcess::PostStepDoIt(
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| 164 | const G4Track &aTrack, const G4Step &)
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| 165 | {
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| 166 | // Debugging stuff
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| 167 | if(G4HadronicProcess_debug_flag)
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| 168 | std::cout << "@@@@ hadronic process start "<< std::endl;
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| 169 | // G4cout << theNumberOfInteractionLengthLeft<<G4endl;
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| 170 | #ifndef G4HadSignalHandler_off
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| 171 | G4HadSignalHandler aHandler(G4HadronicProcess_local::G4HadronicProcessHandler_1);
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| 172 | #endif
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| 173 |
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| 174 | if(aTrack.GetTrackStatus() != fAlive && aTrack.GetTrackStatus() != fSuspend) {
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| 175 | if (aTrack.GetTrackStatus() == fStopAndKill ||
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| 176 | aTrack.GetTrackStatus() == fKillTrackAndSecondaries ||
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| 177 | aTrack.GetTrackStatus() == fPostponeToNextEvent) {
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| 178 | G4cerr << "G4HadronicProcess: track in unusable state - "
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| 179 | << aTrack.GetTrackStatus() << G4endl;
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| 180 | G4cerr << "G4HadronicProcess: returning unchanged track " << G4endl;
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| 181 | G4Exception("G4HadronicProcess", "001", JustWarning, "bailing out");
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| 182 | }
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| 183 | // No warning for fStopButAlive which is a legal status here
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| 184 | theTotalResult->Clear();
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| 185 | theTotalResult->Initialize(aTrack);
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| 186 | return theTotalResult;
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| 187 | }
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| 188 |
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| 189 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
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| 190 | G4Material* aMaterial = aTrack.GetMaterial();
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| 191 | G4double originalEnergy = aParticle->GetKineticEnergy();
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| 192 | G4double kineticEnergy = originalEnergy;
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| 193 |
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| 194 | /*
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| 195 | // It is not needed with standard NaN check
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| 196 | // More debugging
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| 197 | G4Nancheck go_wild;
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| 198 | if(go_wild(originalEnergy) ||
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| 199 | go_wild(aParticle->Get4Momentum().x()) ||
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| 200 | go_wild(aParticle->Get4Momentum().y()) ||
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| 201 | go_wild(aParticle->Get4Momentum().z()) ||
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| 202 | go_wild(aParticle->Get4Momentum().t())
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| 203 | )
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| 204 | {
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| 205 | G4Exception("G4HadronicProcess", "001", JustWarning, "NaN in input energy or momentum - bailing out.");
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| 206 | theTotalResult->Clear();
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| 207 | theTotalResult->Initialize(aTrack);
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| 208 | return theTotalResult;
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| 209 | }
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| 210 | */
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| 211 |
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| 212 | // Get kinetic energy per nucleon for ions
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| 213 | if(aParticle->GetDefinition()->GetBaryonNumber() > 1.5)
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| 214 | kineticEnergy/=aParticle->GetDefinition()->GetBaryonNumber();
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| 215 |
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| 216 | G4Element* anElement = 0;
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| 217 | try
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| 218 | {
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| 219 | // anElement = ChooseAandZ( aParticle, aMaterial );
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| 220 | anElement = theCrossSectionDataStore->SampleZandA(aParticle,
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| 221 | aMaterial,
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| 222 | targetNucleus);
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| 223 | }
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| 224 | catch(G4HadronicException & aR)
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| 225 | {
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| 226 | aR.Report(G4cout);
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| 227 | G4cout << "Unrecoverable error for:"<<G4endl;
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| 228 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl;
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| 229 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl;
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| 230 | G4cout << " - Particle type = "
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| 231 | <<aParticle->GetDefinition()->GetParticleName()<<G4endl;
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| 232 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 233 | "PostStepDoIt failed on element selection.");
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| 234 | }
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| 235 |
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| 236 | try
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| 237 | {
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| 238 | theInteraction = ChooseHadronicInteraction( kineticEnergy,
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| 239 | aMaterial, anElement );
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| 240 | }
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| 241 | catch(G4HadronicException & aE)
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| 242 | {
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| 243 | aE.Report(std::cout);
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| 244 | G4cout << "Unrecoverable error for:"<<G4endl;
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| 245 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl;
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| 246 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl;
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| 247 | G4cout << " - Particle type = "
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| 248 | << aParticle->GetDefinition()->GetParticleName()<<G4endl;
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| 249 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 250 | "ChooseHadronicInteraction failed.");
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| 251 | }
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| 252 |
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| 253 | // Initialize the hadronic projectile from the track
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| 254 |
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| 255 | G4HadProjectile thePro(aTrack);
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| 256 |
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| 257 | G4HadFinalState* result = 0;
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| 258 | G4int reentryCount = 0;
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| 259 |
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| 260 | do
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| 261 | {
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| 262 | try
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| 263 | {
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| 264 | // Call the interaction
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| 265 | result = theInteraction->ApplyYourself( thePro, targetNucleus);
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| 266 | }
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| 267 | catch(G4HadReentrentException aR)
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| 268 | {
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| 269 | G4HadronicWhiteBoard & theBoard = G4HadronicWhiteBoard::Instance();
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| 270 | theBoard.SetProjectile(thePro);
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| 271 | theBoard.SetTargetNucleus(targetNucleus);
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| 272 | theBoard.SetProcessName(GetProcessName());
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| 273 | theBoard.SetModelName(theInteraction->GetModelName());
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| 274 |
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| 275 | aR.Report(G4cout);
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| 276 | G4cout << " G4HadronicProcess re-entering the ApplyYourself call for "
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| 277 | <<G4endl;
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| 278 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl;
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| 279 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl;
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| 280 | G4cout << " - Particle type = "
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| 281 | << aParticle->GetDefinition()->GetParticleName() << G4endl;
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| 282 | result = 0; // here would still be leaking...
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| 283 | if(reentryCount>100)
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| 284 | {
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| 285 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 286 | "GetHadronicProcess: Reentering ApplyYourself too often - PostStepDoIt failed.");
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| 287 | }
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| 288 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 289 | "GetHadronicProcess: PostStepDoIt failed (Reentering ApplyYourself not yet supported.)");
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| 290 | }
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| 291 | catch(G4HadronicException aR)
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| 292 | {
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| 293 | G4HadronicWhiteBoard & theBoard = G4HadronicWhiteBoard::Instance();
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| 294 | theBoard.SetProjectile(thePro);
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| 295 | theBoard.SetTargetNucleus(targetNucleus);
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| 296 | theBoard.SetProcessName(GetProcessName());
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| 297 | theBoard.SetModelName(theInteraction->GetModelName());
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| 298 |
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| 299 | aR.Report(G4cout);
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| 300 | G4cout << " G4HadronicProcess failed in ApplyYourself call for"
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| 301 | << G4endl;
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| 302 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl;
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| 303 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl;
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| 304 | G4cout << " - Particle type = "
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| 305 | << aParticle->GetDefinition()->GetParticleName() << G4endl;
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| 306 | G4Exception("G4HadronicProcess", "007", FatalException,
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| 307 | "PostStepDoIt failed.");
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| 308 | }
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| 309 | }
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| 310 | while(!result);
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| 311 |
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| 312 | if(!ModelingState && !getenv("BypassAllSafetyChecks") )
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| 313 | {
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| 314 | G4cout << "ERROR IN EXECUTION -- HADRONIC PROCESS STATE NOT VALID"<<G4endl;
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| 315 | G4cout << "Result will be of undefined quality."<<G4endl;
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| 316 | }
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| 317 |
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| 318 | // NOT USED ?? Projectile particle has changed character during interaction
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| 319 | if(result->GetStatusChange() == isAlive &&
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| 320 | thePro.GetDefinition() != aTrack.GetDefinition())
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| 321 | {
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| 322 | G4DynamicParticle * aP =
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| 323 | const_cast<G4DynamicParticle *>(aTrack.GetDynamicParticle());
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| 324 | aP->SetDefinition(const_cast<G4ParticleDefinition *>(thePro.GetDefinition()));
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| 325 | }
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| 326 |
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| 327 | result->SetTrafoToLab(thePro.GetTrafoToLab());
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| 328 |
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| 329 | if(getenv("HadronicDoitLogging") )
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| 330 | {
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| 331 | G4cout << "HadronicDoitLogging "
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| 332 | << GetProcessName() <<" "
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| 333 | << aParticle->GetDefinition()->GetPDGEncoding()<<" "
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| 334 | << originalEnergy<<" "
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| 335 | << aParticle->GetMomentum()<<" "
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| 336 | << targetNucleus.GetN()<<" "
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| 337 | << targetNucleus.GetZ()<<" "
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| 338 | << G4endl;
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| 339 | }
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| 340 |
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| 341 | ClearNumberOfInteractionLengthLeft();
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| 342 | if(isoIsOnAnyway!=-1)
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| 343 | {
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| 344 | if(isoIsEnabled||isoIsOnAnyway)
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| 345 | {
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| 346 | result = DoIsotopeCounting(result, aTrack, targetNucleus);
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | G4double e=aTrack.GetKineticEnergy();
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| 351 | ModelingState = 0;
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| 352 | if(e<5*GeV)
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| 353 | {
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| 354 | for(size_t i=0; i<theBias.size(); i++)
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| 355 | {
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| 356 | result = theBias[i]->Bias(result);
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| 357 | }
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| 358 | }
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| 359 |
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| 360 | // Put hadronic final state particles into G4ParticleChange
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| 361 |
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| 362 | FillTotalResult(result, aTrack);
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| 363 | if(G4HadronicProcess_debug_flag)
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| 364 | std::cout << "@@@@ hadronic process end "<< std::endl;
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| 365 |
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| 366 | return theTotalResult;
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| 367 | }
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| 368 |
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| 369 |
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| 370 | G4HadFinalState*
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| 371 | G4HadronicProcess::DoIsotopeCounting(G4HadFinalState * aResult,
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| 372 | const G4Track & aTrack,
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| 373 | const G4Nucleus & aNucleus)
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| 374 | {
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| 375 | // get the PC from iso-production
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| 376 | delete theOldIsoResult;
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| 377 | theOldIsoResult = 0;
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| 378 | delete theIsoResult;
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| 379 | theIsoResult = new G4IsoParticleChange;
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| 380 | G4bool done = false;
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| 381 | G4IsoResult * anIsoResult = 0;
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| 382 | for(unsigned int i=0; i<theProductionModels.size(); i++)
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| 383 | {
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| 384 | anIsoResult = theProductionModels[i]->GetIsotope(aTrack, aNucleus);
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| 385 | if(anIsoResult!=0)
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| 386 | {
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| 387 | done = true;
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| 388 | break;
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| 389 | }
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| 390 | }
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| 391 |
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| 392 | // If no production models active, use default iso production
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| 393 | if(!done) anIsoResult = ExtractResidualNucleus(aTrack, aNucleus, aResult);
|
|---|
| 394 |
|
|---|
| 395 | // Add all info explicitely and add typename from model called.
|
|---|
| 396 | theIsoResult->SetIsotope(anIsoResult->GetIsotope());
|
|---|
| 397 | theIsoResult->SetProductionPosition(aTrack.GetPosition());
|
|---|
| 398 | theIsoResult->SetProductionTime(aTrack.GetGlobalTime());
|
|---|
| 399 | theIsoResult->SetParentParticle(*aTrack.GetDynamicParticle());
|
|---|
| 400 | theIsoResult->SetMotherNucleus(anIsoResult->GetMotherNucleus());
|
|---|
| 401 | theIsoResult->SetProducer(typeid(*theInteraction).name());
|
|---|
| 402 |
|
|---|
| 403 | delete anIsoResult;
|
|---|
| 404 |
|
|---|
| 405 | // If isotope production is enabled the GetIsotopeProductionInfo()
|
|---|
| 406 | // method must be called or else a memory leak will result
|
|---|
| 407 | //
|
|---|
| 408 | // The following code will fix the memory leak, but remove the
|
|---|
| 409 | // isotope information:
|
|---|
| 410 | //
|
|---|
| 411 | // if(theIsoResult) {
|
|---|
| 412 | // delete theIsoResult;
|
|---|
| 413 | // theIsoResult = 0;
|
|---|
| 414 | // }
|
|---|
| 415 |
|
|---|
| 416 | return aResult;
|
|---|
| 417 | }
|
|---|
| 418 |
|
|---|
| 419 | G4IsoResult*
|
|---|
| 420 | G4HadronicProcess::ExtractResidualNucleus(const G4Track&,
|
|---|
| 421 | const G4Nucleus& aNucleus,
|
|---|
| 422 | G4HadFinalState* aResult)
|
|---|
| 423 | {
|
|---|
| 424 | G4double A = aNucleus.GetN();
|
|---|
| 425 | G4double Z = aNucleus.GetZ();
|
|---|
| 426 | G4double bufferA = 0;
|
|---|
| 427 | G4double bufferZ = 0;
|
|---|
| 428 |
|
|---|
| 429 | // loop over aResult, and decrement A, Z accordingly
|
|---|
| 430 | // cash the max
|
|---|
| 431 | for(G4int i=0; i<aResult->GetNumberOfSecondaries(); i++)
|
|---|
| 432 | {
|
|---|
| 433 | G4HadSecondary* aSecTrack = aResult->GetSecondary(i);
|
|---|
| 434 | if(bufferA<aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber())
|
|---|
| 435 | {
|
|---|
| 436 | bufferA = aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber();
|
|---|
| 437 | bufferZ = aSecTrack->GetParticle()->GetDefinition()->GetPDGCharge();
|
|---|
| 438 | }
|
|---|
| 439 | Z-=aSecTrack->GetParticle()->GetDefinition()->GetPDGCharge();
|
|---|
| 440 | A-=aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber();
|
|---|
| 441 | }
|
|---|
| 442 |
|
|---|
| 443 | // if the fragment was part of the final state, it is
|
|---|
| 444 | // assumed to be the heaviest secondary.
|
|---|
| 445 | if(A<0.1)
|
|---|
| 446 | {
|
|---|
| 447 | A = bufferA;
|
|---|
| 448 | Z = bufferZ;
|
|---|
| 449 | }
|
|---|
| 450 |
|
|---|
| 451 | // prepare the IsoResult.
|
|---|
| 452 |
|
|---|
| 453 | std::ostringstream ost1;
|
|---|
| 454 | ost1 <<Z<<"_"<<A;
|
|---|
| 455 | G4String biff = ost1.str();
|
|---|
| 456 | G4IsoResult * theResult = new G4IsoResult(biff, aNucleus);
|
|---|
| 457 |
|
|---|
| 458 | return theResult;
|
|---|
| 459 | }
|
|---|
| 460 |
|
|---|
| 461 | G4double G4HadronicProcess::XBiasSurvivalProbability()
|
|---|
| 462 | {
|
|---|
| 463 | G4double result = 0;
|
|---|
| 464 | G4double nLTraversed = GetTotalNumberOfInteractionLengthTraversed();
|
|---|
| 465 | G4double biasedProbability = 1.-std::exp(-nLTraversed);
|
|---|
| 466 | G4double realProbability = 1-std::exp(-nLTraversed/aScaleFactor);
|
|---|
| 467 | result = (biasedProbability-realProbability)/biasedProbability;
|
|---|
| 468 | return result;
|
|---|
| 469 | }
|
|---|
| 470 |
|
|---|
| 471 | G4double G4HadronicProcess::XBiasSecondaryWeight()
|
|---|
| 472 | {
|
|---|
| 473 | G4double result = 0;
|
|---|
| 474 | G4double nLTraversed = GetTotalNumberOfInteractionLengthTraversed();
|
|---|
| 475 | result =
|
|---|
| 476 | 1./aScaleFactor*std::exp(-nLTraversed/aScaleFactor*(1-1./aScaleFactor));
|
|---|
| 477 | return result;
|
|---|
| 478 | }
|
|---|
| 479 |
|
|---|
| 480 | void
|
|---|
| 481 | G4HadronicProcess::FillTotalResult(G4HadFinalState * aR, const G4Track & aT)
|
|---|
| 482 | {
|
|---|
| 483 | // G4Nancheck go_wild;
|
|---|
| 484 | theTotalResult->Clear();
|
|---|
| 485 | theTotalResult->ProposeLocalEnergyDeposit(0.);
|
|---|
| 486 | theTotalResult->Initialize(aT);
|
|---|
| 487 | theTotalResult->SetSecondaryWeightByProcess(true);
|
|---|
| 488 | theTotalResult->ProposeTrackStatus(fAlive);
|
|---|
| 489 | G4double rotation = 2.*pi*G4UniformRand();
|
|---|
| 490 | G4ThreeVector it(0., 0., 1.);
|
|---|
| 491 |
|
|---|
| 492 | /*
|
|---|
| 493 | if(xBiasOn)
|
|---|
| 494 | {
|
|---|
| 495 | G4cout << "BiasDebug "<<GetProcessName()<<" "
|
|---|
| 496 | <<aScaleFactor<<" "
|
|---|
| 497 | <<XBiasSurvivalProbability()<<" "
|
|---|
| 498 | <<XBiasSecondaryWeight()<<" "
|
|---|
| 499 | <<G4endl;
|
|---|
| 500 | }
|
|---|
| 501 | */
|
|---|
| 502 | // if(GetProcessName() != "LElastic") std::cout << "Debug -1 "<<aR->GetStatusChange()<<std::endl;
|
|---|
| 503 | if(aR->GetStatusChange()==stopAndKill)
|
|---|
| 504 | {
|
|---|
| 505 | if( xBiasOn && G4UniformRand()<XBiasSurvivalProbability() )
|
|---|
| 506 | {
|
|---|
| 507 | theTotalResult->ProposeParentWeight( XBiasSurvivalProbability()*aT.GetWeight() );
|
|---|
| 508 | }
|
|---|
| 509 | else
|
|---|
| 510 | {
|
|---|
| 511 | theTotalResult->ProposeTrackStatus(fStopAndKill);
|
|---|
| 512 | theTotalResult->ProposeEnergy( 0.0 );
|
|---|
| 513 | }
|
|---|
| 514 | }
|
|---|
| 515 | else if(aR->GetStatusChange()!=stopAndKill )
|
|---|
| 516 | {
|
|---|
| 517 | if(aR->GetStatusChange()==suspend)
|
|---|
| 518 | {
|
|---|
| 519 | theTotalResult->ProposeTrackStatus(fSuspend);
|
|---|
| 520 | if(xBiasOn)
|
|---|
| 521 | {
|
|---|
| 522 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 523 | "Cannot cross-section bias a process that suspends tracks.");
|
|---|
| 524 | }
|
|---|
| 525 | } else if (aT.GetKineticEnergy() == 0) {
|
|---|
| 526 | theTotalResult->ProposeTrackStatus(fStopButAlive);
|
|---|
| 527 | }
|
|---|
| 528 |
|
|---|
| 529 | if(xBiasOn && G4UniformRand()<XBiasSurvivalProbability())
|
|---|
| 530 | {
|
|---|
| 531 | theTotalResult->ProposeParentWeight( XBiasSurvivalProbability()*aT.GetWeight() );
|
|---|
| 532 | G4double newWeight = aR->GetWeightChange()*aT.GetWeight();
|
|---|
| 533 | /*
|
|---|
| 534 | if(go_wild(aR->GetEnergyChange()))
|
|---|
| 535 | {
|
|---|
| 536 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 537 | "surviving track received NaN energy.");
|
|---|
| 538 | }
|
|---|
| 539 | if(go_wild(aR->GetMomentumChange().x()) ||
|
|---|
| 540 | go_wild(aR->GetMomentumChange().y()) ||
|
|---|
| 541 | go_wild(aR->GetMomentumChange().z()))
|
|---|
| 542 | {
|
|---|
| 543 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 544 | "surviving track received NaN momentum.");
|
|---|
| 545 | }
|
|---|
| 546 | */
|
|---|
| 547 | G4double newM=aT.GetDefinition()->GetPDGMass();
|
|---|
| 548 | G4double newE=aR->GetEnergyChange() + newM;
|
|---|
| 549 | G4double newP=std::sqrt(newE*newE - newM*newM);
|
|---|
| 550 | G4DynamicParticle * aNew =
|
|---|
| 551 | new G4DynamicParticle(aT.GetDefinition(), newE, newP*aR->GetMomentumChange());
|
|---|
| 552 | G4HadSecondary * theSec = new G4HadSecondary(aNew, newWeight);
|
|---|
| 553 | aR->AddSecondary(theSec);
|
|---|
| 554 | }
|
|---|
| 555 | else
|
|---|
| 556 | {
|
|---|
| 557 | G4double newWeight = aR->GetWeightChange()*aT.GetWeight();
|
|---|
| 558 | theTotalResult->ProposeParentWeight(newWeight); // This is multiplicative
|
|---|
| 559 | if(aR->GetEnergyChange()>-.5)
|
|---|
| 560 | {
|
|---|
| 561 | /*
|
|---|
| 562 | if(go_wild(aR->GetEnergyChange()))
|
|---|
| 563 | {
|
|---|
| 564 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 565 | "track received NaN energy.");
|
|---|
| 566 | }
|
|---|
| 567 | */
|
|---|
| 568 | theTotalResult->ProposeEnergy(aR->GetEnergyChange());
|
|---|
| 569 | }
|
|---|
| 570 | G4LorentzVector newDirection(aR->GetMomentumChange().unit(), 1.);
|
|---|
| 571 | newDirection*=aR->GetTrafoToLab();
|
|---|
| 572 | theTotalResult->ProposeMomentumDirection(newDirection.vect());
|
|---|
| 573 | }
|
|---|
| 574 | }
|
|---|
| 575 | else
|
|---|
| 576 | {
|
|---|
| 577 | G4cerr << "Track status is "<< aR->GetStatusChange()<<G4endl;
|
|---|
| 578 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 579 | "use of unsupported track-status.");
|
|---|
| 580 | }
|
|---|
| 581 |
|
|---|
| 582 | if(GetProcessName() != "hElastic" && GetProcessName() != "HadronElastic"
|
|---|
| 583 | && theTotalResult->GetTrackStatus()==fAlive
|
|---|
| 584 | && aR->GetStatusChange()==isAlive)
|
|---|
| 585 | {
|
|---|
| 586 | // Use for debugging: G4double newWeight = theTotalResult->GetParentWeight();
|
|---|
| 587 |
|
|---|
| 588 | G4double newKE = std::max(DBL_MIN, aR->GetEnergyChange());
|
|---|
| 589 | G4DynamicParticle* aNew = new G4DynamicParticle(aT.GetDefinition(),
|
|---|
| 590 | aR->GetMomentumChange(),
|
|---|
| 591 | newKE);
|
|---|
| 592 | G4HadSecondary* theSec = new G4HadSecondary(aNew, 1.0);
|
|---|
| 593 | aR->AddSecondary(theSec);
|
|---|
| 594 | aR->SetStatusChange(stopAndKill);
|
|---|
| 595 |
|
|---|
| 596 | theTotalResult->ProposeTrackStatus(fStopAndKill);
|
|---|
| 597 | theTotalResult->ProposeEnergy( 0.0 );
|
|---|
| 598 |
|
|---|
| 599 | }
|
|---|
| 600 | theTotalResult->ProposeLocalEnergyDeposit(aR->GetLocalEnergyDeposit());
|
|---|
| 601 | theTotalResult->SetNumberOfSecondaries(aR->GetNumberOfSecondaries());
|
|---|
| 602 |
|
|---|
| 603 | if(aR->GetStatusChange() != stopAndKill)
|
|---|
| 604 | {
|
|---|
| 605 | G4double newM=aT.GetDefinition()->GetPDGMass();
|
|---|
| 606 | G4double newE=aR->GetEnergyChange() + newM;
|
|---|
| 607 | G4double newP=std::sqrt(newE*newE - newM*newM);
|
|---|
| 608 | G4ThreeVector newPV = newP*aR->GetMomentumChange();
|
|---|
| 609 | G4LorentzVector newP4(newE, newPV);
|
|---|
| 610 | newP4.rotate(rotation, it);
|
|---|
| 611 | newP4*=aR->GetTrafoToLab();
|
|---|
| 612 | theTotalResult->ProposeMomentumDirection(newP4.vect().unit());
|
|---|
| 613 | }
|
|---|
| 614 |
|
|---|
| 615 | for(G4int i=0; i<aR->GetNumberOfSecondaries(); i++)
|
|---|
| 616 | {
|
|---|
| 617 | G4LorentzVector theM = aR->GetSecondary(i)->GetParticle()->Get4Momentum();
|
|---|
| 618 | theM.rotate(rotation, it);
|
|---|
| 619 | theM*=aR->GetTrafoToLab();
|
|---|
| 620 | /*
|
|---|
| 621 | if(go_wild(theM.e()))
|
|---|
| 622 | {
|
|---|
| 623 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 624 | "secondary track received NaN energy.");
|
|---|
| 625 | }
|
|---|
| 626 | if(go_wild(theM.x()) ||
|
|---|
| 627 | go_wild(theM.y()) ||
|
|---|
| 628 | go_wild(theM.z()))
|
|---|
| 629 | {
|
|---|
| 630 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 631 | "secondary track received NaN momentum.");
|
|---|
| 632 | }
|
|---|
| 633 | */
|
|---|
| 634 | aR->GetSecondary(i)->GetParticle()->Set4Momentum(theM);
|
|---|
| 635 | G4double time = aR->GetSecondary(i)->GetTime();
|
|---|
| 636 | if(time<0) time = aT.GetGlobalTime();
|
|---|
| 637 |
|
|---|
| 638 | G4Track* track = new G4Track(aR->GetSecondary(i)->GetParticle(),
|
|---|
| 639 | time,
|
|---|
| 640 | aT.GetPosition());
|
|---|
| 641 |
|
|---|
| 642 | G4double newWeight = aT.GetWeight()*aR->GetSecondary(i)->GetWeight();
|
|---|
| 643 | //static G4double pinelcount=0;
|
|---|
| 644 | if(xBiasOn) newWeight *= XBiasSecondaryWeight();
|
|---|
| 645 | // G4cout << "#### ParticleDebug "
|
|---|
| 646 | // <<GetProcessName()<<" "
|
|---|
| 647 | // <<aR->GetSecondary(i)->GetParticle()->GetDefinition()->GetParticleName()<<" "
|
|---|
| 648 | // <<aScaleFactor<<" "
|
|---|
| 649 | // <<XBiasSurvivalProbability()<<" "
|
|---|
| 650 | // <<XBiasSecondaryWeight()<<" "
|
|---|
| 651 | // <<aT.GetWeight()<<" "
|
|---|
| 652 | // <<aR->GetSecondary(i)->GetWeight()<<" "
|
|---|
| 653 | // <<aR->GetSecondary(i)->GetParticle()->Get4Momentum()<<" "
|
|---|
| 654 | // <<G4endl;
|
|---|
| 655 | track->SetWeight(newWeight);
|
|---|
| 656 | /*
|
|---|
| 657 | G4double trackDeb = track->GetKineticEnergy();
|
|---|
| 658 | if( ( trackDeb<0
|
|---|
| 659 | || (trackDeb>aT.GetKineticEnergy()+1*GeV) ) && getenv("GHADEnergyBalanceDebug") )
|
|---|
| 660 | {
|
|---|
| 661 | G4cout << "Debugging hadronic processes: "<<track->GetKineticEnergy()
|
|---|
| 662 | <<" "<<aT.GetKineticEnergy()
|
|---|
| 663 | <<" "<<GetProcessName()
|
|---|
| 664 | <<" "<<aT.GetDefinition()->GetParticleName()
|
|---|
| 665 | <<G4endl;
|
|---|
| 666 | }
|
|---|
| 667 | */
|
|---|
| 668 | track->SetTouchableHandle(aT.GetTouchableHandle());
|
|---|
| 669 | theTotalResult->AddSecondary(track);
|
|---|
| 670 | }
|
|---|
| 671 |
|
|---|
| 672 | aR->Clear();
|
|---|
| 673 | return;
|
|---|
| 674 | }
|
|---|
| 675 |
|
|---|
| 676 | G4IsoParticleChange* G4HadronicProcess::GetIsotopeProductionInfo()
|
|---|
| 677 | {
|
|---|
| 678 | G4IsoParticleChange * anIsoResult = theIsoResult;
|
|---|
| 679 | if(theIsoResult) theOldIsoResult = theIsoResult;
|
|---|
| 680 | theIsoResult = 0;
|
|---|
| 681 | return anIsoResult;
|
|---|
| 682 | }
|
|---|
| 683 |
|
|---|
| 684 | void G4HadronicProcess::BiasCrossSectionByFactor(G4double aScale)
|
|---|
| 685 | {
|
|---|
| 686 | xBiasOn = true;
|
|---|
| 687 | aScaleFactor = aScale;
|
|---|
| 688 | G4String it = GetProcessName();
|
|---|
| 689 | if( (it != "PhotonInelastic") &&
|
|---|
| 690 | (it != "ElectroNuclear") &&
|
|---|
| 691 | (it != "PositronNuclear") )
|
|---|
| 692 | {
|
|---|
| 693 | G4Exception("G4HadronicProcess", "007", FatalException,
|
|---|
| 694 | "Cross-section biasing available only for gamma and electro nuclear reactions.");
|
|---|
| 695 | }
|
|---|
| 696 | if(aScale<100)
|
|---|
| 697 | {
|
|---|
| 698 | G4Exception("G4HadronicProcess", "001", JustWarning,
|
|---|
| 699 | "Cross-section bias readjusted to be above safe limit. New value is 100");
|
|---|
| 700 | aScaleFactor = 100.;
|
|---|
| 701 | }
|
|---|
| 702 | }
|
|---|
| 703 | /* end of file */
|
|---|