Gabriele Cosmo
170 lines
7.6 KiB
C++
170 lines
7.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// -------------------------------------------------------------------
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//
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// Geant4 source file
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//
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// File name: G4ParticleHPFissionURR.cc
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//
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// Authors: Marek Zmeskal (CTU, Czech Technical University in Prague, Czech Republic)
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// Loic Thulliez (CEA France)
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//
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// Creation date: 4 June 2024
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//
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// Description: Class to handle URR range, can be omitted once the
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// proper isotope cross-section is stored in ParticleHP.
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//
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// Modifications:
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//
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// -------------------------------------------------------------------
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//
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//
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#include "G4ParticleHPFissionURR.hh"
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#include "G4ParticleHPManager.hh"
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#include "G4ParticleHPChannel.hh"
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#include "G4ParticleHPFission.hh"
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#include "G4WendtFissionFragmentGenerator.hh"
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#include "G4ParticleHPProbabilityTablesStore.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4Threading.hh"
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G4ParticleHPFissionURR::G4ParticleHPFissionURR() : G4HadronicInteraction( "NeutronHPFissionURR" ) {
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SetMinEnergy( 0.0 * CLHEP::eV );
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SetMaxEnergy( 20.0 * CLHEP::MeV );
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particleHPfission = new G4ParticleHPFission;
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}
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G4ParticleHPFissionURR::~G4ParticleHPFissionURR() {}
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G4HadFinalState* G4ParticleHPFissionURR::ApplyYourself( const G4HadProjectile& aTrack, G4Nucleus& aNucleus ) {
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const G4Material* theMaterial = aTrack.GetMaterial();
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G4double kineticEnergy = aTrack.GetKineticEnergy();
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G4HadFinalState* theFinalState = nullptr;
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if ( kineticEnergy < (*URRlimits).back().first || kineticEnergy > (*URRlimits).back().second ) {
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return particleHPfission->ApplyYourself( aTrack, aNucleus );
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}
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G4int elementI = -1;
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G4int isotopeJ = -1;
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G4int A = aNucleus.GetA_asInt();
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G4int Z = aNucleus.GetZ_asInt();
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// finds the element and isotope of the selected target aNucleus
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for ( G4int i = 0; i < (G4int)theMaterial->GetNumberOfElements(); ++i ) {
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if ( Z == theMaterial->GetElement(i)->GetZasInt() ) {
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for ( G4int j = 0; j < (G4int)theMaterial->GetElement(i)->GetNumberOfIsotopes(); ++j ) {
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if ( A == theMaterial->GetElement(i)->GetIsotope(j)->GetN() ) {
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isotopeJ = j;
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break;
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}
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}
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// the loop cannot be ended here because the material can have two elements with same Z but different isotopic composition
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if ( isotopeJ != -1 ) {
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// isotope was found and for loop is ended
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elementI = (G4int)theMaterial->GetElement(i)->GetIndex();
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break;
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}
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} // end if find element
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} // end element loop
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// if element or isotope are not selected no further computations
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if (elementI == -1 || isotopeJ == -1) { return theFinalState; }
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// Check whether the energy is out of the URR limits for the given element
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if ( kineticEnergy < (*URRlimits).at(elementI).first || kineticEnergy > (*URRlimits).at(elementI).second ) {
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// Call fission final state in G4ParicleHPChannel and SELECT ISOTOPE (to be improved in the future)
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G4ParticleHPManager::GetInstance()->OpenReactionWhiteBoard();
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theFinalState = (*G4ParticleHPManager::GetInstance()->GetFissionFinalStates())[elementI]->ApplyYourself( aTrack, -2 );
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// Update target nucleus information according to the selected isotope
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G4int selectedIsotope_A = G4ParticleHPManager::GetInstance()->GetReactionWhiteBoard()->GetTargA();
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aNucleus.SetParameters( selectedIsotope_A, Z );
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const G4Element* target_element = (*G4Element::GetElementTable())[elementI];
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const G4Isotope* target_isotope = nullptr;
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// Find the selected isotope among in the element
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for ( G4int j = 0; j < (G4int)target_element->GetNumberOfIsotopes(); ++j ) {
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target_isotope = target_element->GetIsotope(j);
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if ( target_isotope->GetN() == selectedIsotope_A ) break;
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}
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aNucleus.SetIsotope( target_isotope );
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G4ParticleHPManager::GetInstance()->CloseReactionWhiteBoard();
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} else {
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// the energy is inside the limits of the URR, part copied from G4ParticleHPChannel::ApplyYourself
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if ( G4ParticleHPManager::GetInstance()->GetUseWendtFissionModel() ) {
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if ( (*G4ParticleHPManager::GetInstance()->GetFissionFinalStates())[elementI]->GetWendtFissionGenerator() ) {
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theFinalState = (*G4ParticleHPManager::GetInstance()->GetFissionFinalStates())[elementI]->GetWendtFissionGenerator()->ApplyYourself( aTrack, Z, A );
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}
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}
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if ( ! theFinalState ) {
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G4int icounter = 0;
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G4int icounter_max = 1024;
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while ( theFinalState == nullptr ) {
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icounter++;
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if ( icounter > icounter_max ) {
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G4cout << "Loop-counter exceeded the threshold value at " << __LINE__ << "th line of " << __FILE__ << "." << G4endl;
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break;
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}
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// calls the final state for the found element and isotope
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theFinalState = ((*G4ParticleHPManager::GetInstance()->GetFissionFinalStates())[elementI]->GetFinalStates())[isotopeJ]->ApplyYourself( aTrack );
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}
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}
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}
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return theFinalState;
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}
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void G4ParticleHPFissionURR::BuildPhysicsTable( const G4ParticleDefinition& ) {
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particleHPfission->BuildPhysicsTable( *(G4Neutron::Neutron()) );
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URRlimits = G4ParticleHPManager::GetInstance()->GetURRlimits();
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if ( URRlimits == nullptr ) {
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G4ParticleHPProbabilityTablesStore::GetInstance()->InitURRlimits();
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URRlimits = G4ParticleHPProbabilityTablesStore::GetInstance()->GetURRlimits();
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G4ParticleHPManager::GetInstance()->RegisterURRlimits( URRlimits );
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}
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}
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const std::pair< G4double, G4double > G4ParticleHPFissionURR::GetFatalEnergyCheckLevels() const {
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// max energy non-conservation is mass of heavy nucleus
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return std::pair< G4double, G4double >( 10.0 * perCent, 350.0 * CLHEP::GeV );
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}
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G4int G4ParticleHPFissionURR::GetVerboseLevel() const {
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return G4ParticleHPManager::GetInstance()->GetVerboseLevel();
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}
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void G4ParticleHPFissionURR::SetVerboseLevel( G4int newValue ) {
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G4ParticleHPManager::GetInstance()->SetVerboseLevel( newValue );
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}
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void G4ParticleHPFissionURR::ModelDescription( std::ostream& outFile ) const {
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outFile << "High Precision model based on Evaluated Nuclear Data Files (ENDF) for fission reaction of neutrons in the unresolved resonance region.";
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}
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