[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 | |
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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 | // #include "G4EffectiveCharge.hh" |
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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 | #include "G4HadronicInteractionWrapper.hh" |
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| 52 | |
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| 53 | #include "G4HadSignalHandler.hh" |
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| 54 | |
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| 55 | #include <typeinfo> |
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| 56 | |
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| 57 | namespace G4HadronicProcess_local |
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| 58 | { |
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| 59 | extern "C" void G4HadronicProcessHandler_1(int) |
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| 60 | { |
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| 61 | G4HadronicWhiteBoard::Instance().Dump(); |
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| 62 | } |
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| 63 | } |
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| 64 | |
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| 65 | G4IsoParticleChange * G4HadronicProcess::theIsoResult = 0; |
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| 66 | G4IsoParticleChange * G4HadronicProcess::theOldIsoResult = 0; |
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| 67 | G4bool G4HadronicProcess::isoIsEnabled = true; |
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| 68 | |
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| 69 | void G4HadronicProcess:: |
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| 70 | EnableIsotopeProductionGlobally() {isoIsEnabled = true;} |
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| 71 | |
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| 72 | void G4HadronicProcess:: |
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| 73 | DisableIsotopeProductionGlobally() {isoIsEnabled = false;} |
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| 74 | |
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| 75 | G4HadronicProcess::G4HadronicProcess( const G4String &processName, |
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| 76 | G4ProcessType aType ) : |
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| 77 | G4VDiscreteProcess( processName, aType) |
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| 78 | { |
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| 79 | ModelingState = 0; |
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| 80 | isoIsOnAnyway = -1; |
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| 81 | theTotalResult = new G4ParticleChange(); |
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| 82 | theCrossSectionDataStore = new G4CrossSectionDataStore(); |
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| 83 | aScaleFactor = 1; |
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| 84 | xBiasOn = false; |
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| 85 | if(getenv("SwitchLeadBiasOn")) theBias.push_back(new G4HadLeadBias()); |
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| 86 | } |
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| 87 | |
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| 88 | G4HadronicProcess::~G4HadronicProcess() |
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| 89 | { |
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| 90 | delete theTotalResult; |
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| 91 | |
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| 92 | std::for_each(theProductionModels.begin(), |
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| 93 | theProductionModels.end(), G4Delete()); |
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| 94 | std::for_each(theBias.begin(), theBias.end(), G4Delete()); |
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| 95 | |
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| 96 | delete theOldIsoResult; delete theIsoResult; |
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| 97 | delete theCrossSectionDataStore; |
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| 98 | } |
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| 99 | |
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| 100 | void G4HadronicProcess::RegisterMe( G4HadronicInteraction *a ) |
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| 101 | { |
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| 102 | try{GetManagerPointer()->RegisterMe( a );} |
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| 103 | catch(G4HadronicException & aE) |
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| 104 | { |
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| 105 | aE.Report(std::cout); |
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| 106 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 107 | "Could not register G4HadronicInteraction"); |
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| 108 | } |
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| 109 | } |
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| 110 | |
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| 111 | G4double G4HadronicProcess:: |
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| 112 | GetMeanFreePath(const G4Track &aTrack, G4double, G4ForceCondition *) |
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| 113 | { |
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| 114 | G4double sigma = 0.0; |
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| 115 | try |
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| 116 | { |
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| 117 | const G4DynamicParticle *aParticle = aTrack.GetDynamicParticle(); |
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| 118 | if( !IsApplicable(*aParticle->GetDefinition())) |
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| 119 | { |
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| 120 | G4cout << "Unrecoverable error: "<<G4endl; |
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| 121 | G4ProcessManager * it = aParticle->GetDefinition()->GetProcessManager(); |
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| 122 | G4ProcessVector * itv = it->GetProcessList(); |
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| 123 | G4cout <<aParticle->GetDefinition()->GetParticleName()<< |
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| 124 | " has the following processes:"<<G4endl; |
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| 125 | for(G4int i=0; i<itv->size(); i++) |
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| 126 | { |
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| 127 | G4cout <<" "<<(*itv)[i]->GetProcessName()<<G4endl; |
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| 128 | } |
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| 129 | G4cout << "for kinetic energy "<<aParticle->GetKineticEnergy()<<G4endl; |
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| 130 | G4cout << "and material "<<aTrack.GetMaterial()->GetName()<<G4endl; |
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| 131 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 132 | std::string(this->GetProcessName()+ |
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| 133 | " was called for "+ |
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| 134 | aParticle->GetDefinition()->GetParticleName()).c_str() ); |
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| 135 | } |
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| 136 | G4Material *aMaterial = aTrack.GetMaterial(); |
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| 137 | ModelingState = 1; |
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| 138 | |
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| 139 | sigma = theCrossSectionDataStore->GetCrossSection(aParticle, aMaterial); |
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| 140 | |
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| 141 | sigma *= aScaleFactor; |
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| 142 | theLastCrossSection = sigma; |
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| 143 | } |
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| 144 | catch(G4HadronicException aR) |
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| 145 | { |
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| 146 | aR.Report(G4cout); |
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| 147 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 148 | "G4HadronicProcess::GetMeanFreePath failed"); |
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| 149 | } |
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| 150 | if( sigma > 0.0 ) |
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| 151 | return 1.0/sigma; |
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| 152 | else |
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| 153 | return DBL_MAX; |
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| 154 | } |
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| 155 | |
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| 156 | |
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| 157 | G4Element* G4HadronicProcess::ChooseAandZ( |
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| 158 | const G4DynamicParticle *aParticle, const G4Material *aMaterial ) |
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| 159 | { |
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| 160 | std::pair<G4double, G4double> ZA = |
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| 161 | theCrossSectionDataStore->SelectRandomIsotope(aParticle, aMaterial); |
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| 162 | G4double ZZ = ZA.first; |
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| 163 | G4double AA = ZA.second; |
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| 164 | |
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| 165 | targetNucleus.SetParameters(AA, ZZ); |
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| 166 | |
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| 167 | const G4int numberOfElements = aMaterial->GetNumberOfElements(); |
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| 168 | const G4ElementVector* theElementVector = aMaterial->GetElementVector(); |
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| 169 | G4Element* chosen = 0; |
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| 170 | for (G4int i = 0; i < numberOfElements; i++) { |
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| 171 | chosen = (*theElementVector)[i]; |
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| 172 | if (chosen->GetZ() == ZZ) break; |
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| 173 | } |
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| 174 | return chosen; |
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| 175 | } |
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| 176 | |
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| 177 | |
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| 178 | struct G4Nancheck{ bool operator()(G4double aV){return (!(aV<1))&&(!(aV>-1));}}; |
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| 179 | |
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| 180 | G4VParticleChange *G4HadronicProcess::GeneralPostStepDoIt( |
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| 181 | const G4Track &aTrack, const G4Step &) |
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| 182 | { |
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| 183 | // Debugging stuff |
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| 184 | |
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| 185 | bool G4HadronicProcess_debug_flag = false; |
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| 186 | if(getenv("G4HadronicProcess_debug")) G4HadronicProcess_debug_flag = true; |
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| 187 | if(G4HadronicProcess_debug_flag) |
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| 188 | std::cout << "@@@@ hadronic process start "<< std::endl; |
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| 189 | // G4cout << theNumberOfInteractionLengthLeft<<G4endl; |
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| 190 | #ifndef G4HadSignalHandler_off |
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| 191 | G4HadSignalHandler aHandler(G4HadronicProcess_local::G4HadronicProcessHandler_1); |
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| 192 | #endif |
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| 193 | |
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| 194 | if(aTrack.GetTrackStatus() != fAlive && aTrack.GetTrackStatus() != fSuspend) |
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| 195 | { |
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| 196 | G4cerr << "G4HadronicProcess: track in unusable state - " |
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| 197 | <<aTrack.GetTrackStatus()<<G4endl; |
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| 198 | G4cerr << "G4HadronicProcess: returning unchanged track "<<G4endl; |
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| 199 | G4Exception("G4HadronicProcess", "001", JustWarning, "bailing out"); |
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| 200 | theTotalResult->Clear(); |
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| 201 | theTotalResult->Initialize(aTrack); |
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| 202 | return theTotalResult; |
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| 203 | } |
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| 204 | |
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| 205 | const G4DynamicParticle *aParticle = aTrack.GetDynamicParticle(); |
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| 206 | G4Material *aMaterial = aTrack.GetMaterial(); |
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| 207 | G4double originalEnergy = aParticle->GetKineticEnergy(); |
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| 208 | G4double kineticEnergy = originalEnergy; |
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| 209 | |
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| 210 | // More debugging |
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| 211 | |
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| 212 | G4Nancheck go_wild; |
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| 213 | if(go_wild(originalEnergy) || |
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| 214 | go_wild(aParticle->Get4Momentum().x()) || |
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| 215 | go_wild(aParticle->Get4Momentum().y()) || |
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| 216 | go_wild(aParticle->Get4Momentum().z()) || |
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| 217 | go_wild(aParticle->Get4Momentum().t()) |
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| 218 | ) |
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| 219 | { |
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| 220 | G4Exception("G4HadronicProcess", "001", JustWarning, "NaN in input energy or momentum - bailing out."); |
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| 221 | theTotalResult->Clear(); |
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| 222 | theTotalResult->Initialize(aTrack); |
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| 223 | return theTotalResult; |
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| 224 | } |
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| 225 | |
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| 226 | // Get kinetic energy per nucleon for ions |
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| 227 | |
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| 228 | if(aParticle->GetDefinition()->GetBaryonNumber() > 1.5) |
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| 229 | kineticEnergy/=aParticle->GetDefinition()->GetBaryonNumber(); |
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| 230 | |
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| 231 | G4Element* anElement = 0; |
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| 232 | try |
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| 233 | { |
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| 234 | anElement = ChooseAandZ( aParticle, aMaterial ); |
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| 235 | } |
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| 236 | catch(G4HadronicException & aR) |
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| 237 | { |
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| 238 | aR.Report(G4cout); |
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| 239 | G4cout << "Unrecoverable error for:"<<G4endl; |
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| 240 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl; |
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| 241 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl; |
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| 242 | G4cout << " - Particle type = " |
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| 243 | <<aParticle->GetDefinition()->GetParticleName()<<G4endl; |
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| 244 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 245 | "GeneralPostStepDoIt failed on element selection."); |
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| 246 | } |
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| 247 | |
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| 248 | try |
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| 249 | { |
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| 250 | theInteraction = ChooseHadronicInteraction( kineticEnergy, |
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| 251 | aMaterial, anElement ); |
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| 252 | } |
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| 253 | catch(G4HadronicException & aE) |
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| 254 | { |
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| 255 | aE.Report(std::cout); |
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| 256 | G4cout << "Unrecoverable error for:"<<G4endl; |
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| 257 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl; |
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| 258 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl; |
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| 259 | G4cout << " - Particle type = " |
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| 260 | << aParticle->GetDefinition()->GetParticleName()<<G4endl; |
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| 261 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 262 | "ChooseHadronicInteraction failed."); |
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| 263 | } |
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| 264 | |
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| 265 | // Initialize the hadronic projectile from the track |
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| 266 | |
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| 267 | G4HadProjectile thePro(aTrack); |
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| 268 | |
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| 269 | G4HadFinalState* result = 0; |
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| 270 | G4int reentryCount = 0; |
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| 271 | |
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| 272 | do |
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| 273 | { |
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| 274 | try |
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| 275 | { |
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| 276 | // Call the interaction |
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| 277 | |
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| 278 | G4HadronicInteractionWrapper aW; |
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| 279 | result = aW.ApplyInteraction(thePro, targetNucleus, theInteraction, |
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| 280 | GetProcessName(), |
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| 281 | theInteraction->GetModelName()); |
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| 282 | } |
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| 283 | catch(G4HadReentrentException aR) |
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| 284 | { |
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| 285 | aR.Report(G4cout); |
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| 286 | G4cout << " G4HadronicProcess re-entering the ApplyYourself call for " |
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| 287 | <<G4endl; |
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| 288 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl; |
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| 289 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl; |
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| 290 | G4cout << " - Particle type = " |
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| 291 | << aParticle->GetDefinition()->GetParticleName() << G4endl; |
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| 292 | result = 0; // here would still be leaking... |
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| 293 | if(reentryCount>100) |
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| 294 | { |
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| 295 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 296 | "GetHadronicProcess: Reentering ApplyYourself too often - GeneralPostStepDoIt failed."); |
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| 297 | } |
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| 298 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 299 | "GetHadronicProcess: GeneralPostStepDoIt failed (Reentering ApplyYourself not yet supported.)"); |
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| 300 | } |
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| 301 | catch(G4HadronicException aR) |
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| 302 | { |
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| 303 | aR.Report(G4cout); |
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| 304 | G4cout << " G4HadronicProcess failed in ApplyYourself call for" |
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| 305 | << G4endl; |
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| 306 | G4cout << " - Particle energy[GeV] = "<< originalEnergy/GeV<<G4endl; |
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| 307 | G4cout << " - Material = "<<aMaterial->GetName()<<G4endl; |
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| 308 | G4cout << " - Particle type = " |
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| 309 | << aParticle->GetDefinition()->GetParticleName() << G4endl; |
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| 310 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 311 | "GeneralPostStepDoIt failed."); |
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| 312 | } |
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| 313 | } |
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| 314 | while(!result); |
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| 315 | |
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| 316 | if(!ModelingState && !getenv("BypassAllSafetyChecks") ) |
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| 317 | { |
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| 318 | G4cout << "ERROR IN EXECUTION -- HADRONIC PROCESS STATE NOT VALID"<<G4endl; |
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| 319 | G4cout << "Result will be of undefined quality."<<G4endl; |
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| 320 | } |
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| 321 | |
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| 322 | // NOT USED ?? Projectile particle has changed character during interaction |
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| 323 | if(result->GetStatusChange() == isAlive && |
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| 324 | thePro.GetDefinition() != aTrack.GetDefinition()) |
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| 325 | { |
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| 326 | G4DynamicParticle * aP = |
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| 327 | const_cast<G4DynamicParticle *>(aTrack.GetDynamicParticle()); |
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| 328 | aP->SetDefinition(const_cast<G4ParticleDefinition *>(thePro.GetDefinition())); |
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| 329 | } |
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| 330 | |
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| 331 | result->SetTrafoToLab(thePro.GetTrafoToLab()); |
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| 332 | |
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| 333 | /* |
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| 334 | // Loop over charged ion secondaries |
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| 335 | |
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| 336 | for(G4int i=0; i<result->GetNumberOfSecondaries(); i++) |
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| 337 | { |
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| 338 | G4DynamicParticle* aSecTrack = result->GetSecondary(i)->GetParticle(); |
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| 339 | if(aSecTrack->GetDefinition()->GetPDGCharge()>1.5) |
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| 340 | { |
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| 341 | G4EffectiveCharge aCalculator; |
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| 342 | G4double charge = |
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| 343 | aCalculator.GetCharge(aMaterial, aSecTrack->GetKineticEnergy(), |
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| 344 | aSecTrack->GetDefinition()->GetPDGMass(), |
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| 345 | aSecTrack->GetDefinition()->GetPDGCharge()); |
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| 346 | if(getenv("GHADChargeDebug")) |
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| 347 | { |
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| 348 | std::cout << "Recoil fractional charge is " |
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| 349 | << charge/aSecTrack->GetDefinition()->GetPDGCharge()<<" " |
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| 350 | << charge <<" "<<aSecTrack->GetDefinition()->GetPDGCharge()<<std::endl; |
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| 351 | } |
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| 352 | aSecTrack->SetCharge(charge); |
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| 353 | } |
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| 354 | } |
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| 355 | */ |
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| 356 | |
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| 357 | if(getenv("HadronicDoitLogging") ) |
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| 358 | { |
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| 359 | G4cout << "HadronicDoitLogging " |
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| 360 | << GetProcessName() <<" " |
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| 361 | << aParticle->GetDefinition()->GetPDGEncoding()<<" " |
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| 362 | << originalEnergy<<" " |
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| 363 | << aParticle->GetMomentum()<<" " |
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| 364 | << targetNucleus.GetN()<<" " |
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| 365 | << targetNucleus.GetZ()<<" " |
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| 366 | << G4endl; |
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| 367 | } |
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| 368 | |
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| 369 | ClearNumberOfInteractionLengthLeft(); |
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| 370 | if(isoIsOnAnyway!=-1) |
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| 371 | { |
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| 372 | if(isoIsEnabled||isoIsOnAnyway) |
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| 373 | { |
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| 374 | result = DoIsotopeCounting(result, aTrack, targetNucleus); |
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| 375 | } |
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| 376 | } |
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| 377 | |
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| 378 | G4double e=aTrack.GetKineticEnergy(); |
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| 379 | ModelingState = 0; |
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| 380 | if(e<5*GeV) |
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| 381 | { |
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| 382 | for(size_t i=0; i<theBias.size(); i++) |
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| 383 | { |
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| 384 | result = theBias[i]->Bias(result); |
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| 385 | } |
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| 386 | } |
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| 387 | |
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| 388 | // Put hadronic final state particles into G4ParticleChange |
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| 389 | |
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| 390 | FillTotalResult(result, aTrack); |
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| 391 | if(G4HadronicProcess_debug_flag) |
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| 392 | std::cout << "@@@@ hadronic process end "<< std::endl; |
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| 393 | |
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| 394 | return theTotalResult; |
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| 395 | } |
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| 396 | |
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| 397 | |
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| 398 | G4HadFinalState* |
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| 399 | G4HadronicProcess::DoIsotopeCounting(G4HadFinalState * aResult, |
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| 400 | const G4Track & aTrack, |
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| 401 | const G4Nucleus & aNucleus) |
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| 402 | { |
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| 403 | // get the PC from iso-production |
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| 404 | delete theOldIsoResult; |
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| 405 | theOldIsoResult = 0; |
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| 406 | delete theIsoResult; |
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| 407 | theIsoResult = new G4IsoParticleChange; |
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| 408 | G4bool done = false; |
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| 409 | G4IsoResult * anIsoResult = 0; |
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| 410 | for(unsigned int i=0; i<theProductionModels.size(); i++) |
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| 411 | { |
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| 412 | anIsoResult = theProductionModels[i]->GetIsotope(aTrack, aNucleus); |
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| 413 | if(anIsoResult!=0) |
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| 414 | { |
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| 415 | done = true; |
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| 416 | break; |
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| 417 | } |
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| 418 | } |
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| 419 | |
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| 420 | // If no production models active, use default iso production |
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| 421 | if(!done) anIsoResult = ExtractResidualNucleus(aTrack, aNucleus, aResult); |
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| 422 | |
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| 423 | // Add all info explicitely and add typename from model called. |
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| 424 | theIsoResult->SetIsotope(anIsoResult->GetIsotope()); |
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| 425 | theIsoResult->SetProductionPosition(aTrack.GetPosition()); |
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| 426 | theIsoResult->SetProductionTime(aTrack.GetGlobalTime()); |
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| 427 | theIsoResult->SetParentParticle(*aTrack.GetDynamicParticle()); |
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| 428 | theIsoResult->SetMotherNucleus(anIsoResult->GetMotherNucleus()); |
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| 429 | theIsoResult->SetProducer(typeid(*theInteraction).name()); |
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| 430 | |
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| 431 | delete anIsoResult; |
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| 432 | |
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| 433 | // If isotope production is enabled the GetIsotopeProductionInfo() |
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| 434 | // method must be called or else a memory leak will result |
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| 435 | // |
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| 436 | // The following code will fix the memory leak, but remove the |
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| 437 | // isotope information: |
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| 438 | // |
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| 439 | // if(theIsoResult) { |
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| 440 | // delete theIsoResult; |
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| 441 | // theIsoResult = 0; |
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| 442 | // } |
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| 443 | |
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| 444 | return aResult; |
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| 445 | } |
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| 446 | |
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| 447 | G4IsoResult* |
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| 448 | G4HadronicProcess::ExtractResidualNucleus(const G4Track&, |
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| 449 | const G4Nucleus& aNucleus, |
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| 450 | G4HadFinalState* aResult) |
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| 451 | { |
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| 452 | G4double A = aNucleus.GetN(); |
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| 453 | G4double Z = aNucleus.GetZ(); |
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| 454 | G4double bufferA = 0; |
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| 455 | G4double bufferZ = 0; |
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| 456 | |
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| 457 | // loop over aResult, and decrement A, Z accordingly |
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| 458 | // cash the max |
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| 459 | for(G4int i=0; i<aResult->GetNumberOfSecondaries(); i++) |
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| 460 | { |
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| 461 | G4HadSecondary* aSecTrack = aResult->GetSecondary(i); |
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| 462 | if(bufferA<aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber()) |
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| 463 | { |
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| 464 | bufferA = aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber(); |
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| 465 | bufferZ = aSecTrack->GetParticle()->GetDefinition()->GetPDGCharge(); |
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| 466 | } |
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| 467 | Z-=aSecTrack->GetParticle()->GetDefinition()->GetPDGCharge(); |
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| 468 | A-=aSecTrack->GetParticle()->GetDefinition()->GetBaryonNumber(); |
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| 469 | } |
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| 470 | |
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| 471 | // if the fragment was part of the final state, it is |
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| 472 | // assumed to be the heaviest secondary. |
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| 473 | if(A<0.1) |
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| 474 | { |
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| 475 | A = bufferA; |
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| 476 | Z = bufferZ; |
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| 477 | } |
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| 478 | |
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| 479 | // prepare the IsoResult. |
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| 480 | |
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| 481 | std::ostringstream ost1; |
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| 482 | ost1 <<Z<<"_"<<A; |
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| 483 | G4String biff = ost1.str(); |
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| 484 | G4IsoResult * theResult = new G4IsoResult(biff, aNucleus); |
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| 485 | |
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| 486 | return theResult; |
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| 487 | } |
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| 488 | |
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| 489 | G4double G4HadronicProcess::XBiasSurvivalProbability() |
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| 490 | { |
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| 491 | G4double result = 0; |
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| 492 | G4double nLTraversed = GetTotalNumberOfInteractionLengthTraversed(); |
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| 493 | G4double biasedProbability = 1.-std::exp(-nLTraversed); |
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| 494 | G4double realProbability = 1-std::exp(-nLTraversed/aScaleFactor); |
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| 495 | result = (biasedProbability-realProbability)/biasedProbability; |
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| 496 | return result; |
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| 497 | } |
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| 498 | |
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| 499 | G4double G4HadronicProcess::XBiasSecondaryWeight() |
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| 500 | { |
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| 501 | G4double result = 0; |
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| 502 | G4double nLTraversed = GetTotalNumberOfInteractionLengthTraversed(); |
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| 503 | result = |
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| 504 | 1./aScaleFactor*std::exp(-nLTraversed/aScaleFactor*(1-1./aScaleFactor)); |
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| 505 | return result; |
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| 506 | } |
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| 507 | |
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| 508 | void |
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| 509 | G4HadronicProcess::FillTotalResult(G4HadFinalState * aR, const G4Track & aT) |
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| 510 | { |
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| 511 | G4Nancheck go_wild; |
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| 512 | theTotalResult->Clear(); |
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| 513 | theTotalResult->ProposeLocalEnergyDeposit(0.); |
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| 514 | theTotalResult->Initialize(aT); |
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| 515 | theTotalResult->SetSecondaryWeightByProcess(true); |
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| 516 | theTotalResult->ProposeTrackStatus(fAlive); |
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| 517 | G4double rotation = 2.*pi*G4UniformRand(); |
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| 518 | G4ThreeVector it(0., 0., 1.); |
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| 519 | |
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| 520 | /* |
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| 521 | if(xBiasOn) |
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| 522 | { |
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| 523 | G4cout << "BiasDebug "<<GetProcessName()<<" " |
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| 524 | <<aScaleFactor<<" " |
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| 525 | <<XBiasSurvivalProbability()<<" " |
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| 526 | <<XBiasSecondaryWeight()<<" " |
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| 527 | <<G4endl; |
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| 528 | } |
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| 529 | */ |
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| 530 | // if(GetProcessName() != "LElastic") std::cout << "Debug -1 "<<aR->GetStatusChange()<<std::endl; |
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| 531 | if(aR->GetStatusChange()==stopAndKill) |
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| 532 | { |
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| 533 | if( xBiasOn && G4UniformRand()<XBiasSurvivalProbability() ) |
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| 534 | { |
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| 535 | theTotalResult->ProposeParentWeight( XBiasSurvivalProbability()*aT.GetWeight() ); |
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| 536 | } |
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| 537 | else |
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| 538 | { |
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| 539 | theTotalResult->ProposeTrackStatus(fStopAndKill); |
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| 540 | theTotalResult->ProposeEnergy( 0.0 ); |
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| 541 | } |
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| 542 | } |
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| 543 | else if(aR->GetStatusChange()!=stopAndKill ) |
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| 544 | { |
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| 545 | if(aR->GetStatusChange()==suspend) |
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| 546 | { |
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| 547 | theTotalResult->ProposeTrackStatus(fSuspend); |
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| 548 | if(xBiasOn) |
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| 549 | { |
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| 550 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 551 | "Cannot cross-section bias a process that suspends tracks."); |
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| 552 | } |
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| 553 | } else if (aT.GetKineticEnergy() == 0) { |
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| 554 | theTotalResult->ProposeTrackStatus(fStopButAlive); |
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| 555 | } |
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| 556 | |
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| 557 | if(xBiasOn && G4UniformRand()<XBiasSurvivalProbability()) |
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| 558 | { |
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| 559 | theTotalResult->ProposeParentWeight( XBiasSurvivalProbability()*aT.GetWeight() ); |
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| 560 | G4double newWeight = aR->GetWeightChange()*aT.GetWeight(); |
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| 561 | if(go_wild(aR->GetEnergyChange())) |
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| 562 | { |
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| 563 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 564 | "surviving track received NaN energy."); |
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| 565 | } |
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| 566 | if(go_wild(aR->GetMomentumChange().x()) || |
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| 567 | go_wild(aR->GetMomentumChange().y()) || |
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| 568 | go_wild(aR->GetMomentumChange().z())) |
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| 569 | { |
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| 570 | G4Exception("G4HadronicProcess", "007", FatalException, |
---|
| 571 | "surviving track received NaN momentum."); |
---|
| 572 | } |
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| 573 | G4double newM=aT.GetDefinition()->GetPDGMass(); |
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| 574 | G4double newE=aR->GetEnergyChange() + newM; |
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| 575 | G4double newP=std::sqrt(newE*newE - newM*newM); |
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| 576 | G4DynamicParticle * aNew = |
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| 577 | new G4DynamicParticle(aT.GetDefinition(), newE, newP*aR->GetMomentumChange()); |
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| 578 | G4HadSecondary * theSec = new G4HadSecondary(aNew, newWeight); |
---|
| 579 | aR->AddSecondary(theSec); |
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| 580 | } |
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| 581 | else |
---|
| 582 | { |
---|
| 583 | G4double newWeight = aR->GetWeightChange()*aT.GetWeight(); |
---|
| 584 | theTotalResult->ProposeParentWeight(newWeight); // This is multiplicative |
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| 585 | if(aR->GetEnergyChange()>-.5) |
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| 586 | { |
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| 587 | if(go_wild(aR->GetEnergyChange())) |
---|
| 588 | { |
---|
| 589 | G4Exception("G4HadronicProcess", "007", FatalException, |
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| 590 | "track received NaN energy."); |
---|
| 591 | } |
---|
| 592 | theTotalResult->ProposeEnergy(aR->GetEnergyChange()); |
---|
| 593 | } |
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| 594 | G4LorentzVector newDirection(aR->GetMomentumChange().unit(), 1.); |
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| 595 | newDirection*=aR->GetTrafoToLab(); |
---|
| 596 | theTotalResult->ProposeMomentumDirection(newDirection.vect()); |
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| 597 | } |
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| 598 | } |
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| 599 | else |
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| 600 | { |
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| 601 | G4cerr << "Track status is "<< aR->GetStatusChange()<<G4endl; |
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| 602 | G4Exception("G4HadronicProcess", "007", FatalException, |
---|
| 603 | "use of unsupported track-status."); |
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| 604 | } |
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| 605 | |
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| 606 | if(GetProcessName() != "hElastic" && GetProcessName() != "HadronElastic" |
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| 607 | && theTotalResult->GetTrackStatus()==fAlive |
---|
| 608 | && aR->GetStatusChange()==isAlive |
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| 609 | ) |
---|
| 610 | { |
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| 611 | // Use for debugging: G4double newWeight = theTotalResult->GetParentWeight(); |
---|
| 612 | |
---|
| 613 | G4double newKE = std::max(DBL_MIN, aR->GetEnergyChange()); |
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| 614 | G4DynamicParticle* aNew = new G4DynamicParticle(aT.GetDefinition(), |
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| 615 | aR->GetMomentumChange(), |
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| 616 | newKE); |
---|
| 617 | G4HadSecondary* theSec = new G4HadSecondary(aNew, 1.0); |
---|
| 618 | aR->AddSecondary(theSec); |
---|
| 619 | aR->SetStatusChange(stopAndKill); |
---|
| 620 | |
---|
| 621 | theTotalResult->ProposeTrackStatus(fStopAndKill); |
---|
| 622 | theTotalResult->ProposeEnergy( 0.0 ); |
---|
| 623 | |
---|
| 624 | } |
---|
| 625 | theTotalResult->ProposeLocalEnergyDeposit(aR->GetLocalEnergyDeposit()); |
---|
| 626 | theTotalResult->SetNumberOfSecondaries(aR->GetNumberOfSecondaries()); |
---|
| 627 | |
---|
| 628 | if(aR->GetStatusChange() != stopAndKill) |
---|
| 629 | { |
---|
| 630 | G4double newM=aT.GetDefinition()->GetPDGMass(); |
---|
| 631 | G4double newE=aR->GetEnergyChange() + newM; |
---|
| 632 | G4double newP=std::sqrt(newE*newE - newM*newM); |
---|
| 633 | G4ThreeVector newPV = newP*aR->GetMomentumChange(); |
---|
| 634 | G4LorentzVector newP4(newE, newPV); |
---|
| 635 | newP4.rotate(rotation, it); |
---|
| 636 | newP4*=aR->GetTrafoToLab(); |
---|
| 637 | theTotalResult->ProposeMomentumDirection(newP4.vect().unit()); |
---|
| 638 | } |
---|
| 639 | |
---|
| 640 | for(G4int i=0; i<aR->GetNumberOfSecondaries(); i++) |
---|
| 641 | { |
---|
| 642 | G4LorentzVector theM = aR->GetSecondary(i)->GetParticle()->Get4Momentum(); |
---|
| 643 | theM.rotate(rotation, it); |
---|
| 644 | theM*=aR->GetTrafoToLab(); |
---|
| 645 | |
---|
| 646 | if(go_wild(theM.e())) |
---|
| 647 | { |
---|
| 648 | G4Exception("G4HadronicProcess", "007", FatalException, |
---|
| 649 | "secondary track received NaN energy."); |
---|
| 650 | } |
---|
| 651 | if(go_wild(theM.x()) || |
---|
| 652 | go_wild(theM.y()) || |
---|
| 653 | go_wild(theM.z())) |
---|
| 654 | { |
---|
| 655 | G4Exception("G4HadronicProcess", "007", FatalException, |
---|
| 656 | "secondary track received NaN momentum."); |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | aR->GetSecondary(i)->GetParticle()->Set4Momentum(theM); |
---|
| 660 | G4double time = aR->GetSecondary(i)->GetTime(); |
---|
| 661 | if(time<0) time = aT.GetGlobalTime(); |
---|
| 662 | |
---|
| 663 | G4Track* track = new G4Track(aR->GetSecondary(i)->GetParticle(), |
---|
| 664 | time, |
---|
| 665 | aT.GetPosition()); |
---|
| 666 | |
---|
| 667 | G4double newWeight = aT.GetWeight()*aR->GetSecondary(i)->GetWeight(); |
---|
| 668 | //static G4double pinelcount=0; |
---|
| 669 | if(xBiasOn) newWeight *= XBiasSecondaryWeight(); |
---|
| 670 | // G4cout << "#### ParticleDebug " |
---|
| 671 | // <<GetProcessName()<<" " |
---|
| 672 | // <<aR->GetSecondary(i)->GetParticle()->GetDefinition()->GetParticleName()<<" " |
---|
| 673 | // <<aScaleFactor<<" " |
---|
| 674 | // <<XBiasSurvivalProbability()<<" " |
---|
| 675 | // <<XBiasSecondaryWeight()<<" " |
---|
| 676 | // <<aT.GetWeight()<<" " |
---|
| 677 | // <<aR->GetSecondary(i)->GetWeight()<<" " |
---|
| 678 | // <<aR->GetSecondary(i)->GetParticle()->Get4Momentum()<<" " |
---|
| 679 | // <<G4endl; |
---|
| 680 | track->SetWeight(newWeight); |
---|
| 681 | G4double trackDeb = track->GetKineticEnergy(); |
---|
| 682 | if( ( trackDeb<0 |
---|
| 683 | || (trackDeb>aT.GetKineticEnergy()+1*GeV) ) && getenv("GHADEnergyBalanceDebug") ) |
---|
| 684 | { |
---|
| 685 | G4cout << "Debugging hadronic processes: "<<track->GetKineticEnergy() |
---|
| 686 | <<" "<<aT.GetKineticEnergy() |
---|
| 687 | <<" "<<GetProcessName() |
---|
| 688 | <<" "<<aT.GetDefinition()->GetParticleName() |
---|
| 689 | <<G4endl; |
---|
| 690 | } |
---|
| 691 | track->SetTouchableHandle(aT.GetTouchableHandle()); |
---|
| 692 | theTotalResult->AddSecondary(track); |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | aR->Clear(); |
---|
| 696 | return; |
---|
| 697 | } |
---|
| 698 | /* end of file */ |
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