Gabriele Cosmo
118 lines
5.1 KiB
C++
118 lines
5.1 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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* File: G4FPYNormalFragmentDist.cc
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* Author: B. Wendt (wendbryc@isu.edu)
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*
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* Created on July 26, 2011, 12:26 PM
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*/
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#include "G4FPYNormalFragmentDist.hh"
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#include "G4FFGDebuggingMacros.hh"
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#include "G4FFGEnumerations.hh"
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#include "G4FissionProductYieldDist.hh"
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#include "G4Ions.hh"
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#include "Randomize.hh"
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#include "globals.hh"
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G4FPYNormalFragmentDist::G4FPYNormalFragmentDist(G4int WhichIsotope,
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G4FFGEnumerations::MetaState WhichMetaState,
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G4FFGEnumerations::FissionCause WhichCause,
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G4FFGEnumerations::YieldType WhichYieldType,
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std::istringstream& dataFile)
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: G4FissionProductYieldDist(WhichIsotope, WhichMetaState, WhichCause, WhichYieldType, dataFile)
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{
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// Initialize the class
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Initialize();
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}
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G4FPYNormalFragmentDist::G4FPYNormalFragmentDist(G4int WhichIsotope,
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G4FFGEnumerations::MetaState WhichMetaState,
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G4FFGEnumerations::FissionCause WhichCause,
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G4FFGEnumerations::YieldType WhichYieldType,
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G4int Verbosity, std::istringstream& dataFile)
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: G4FissionProductYieldDist(WhichIsotope, WhichMetaState, WhichCause, WhichYieldType, Verbosity,
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dataFile)
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{
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// Initialize the class
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Initialize();
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}
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void G4FPYNormalFragmentDist::Initialize(){G4FFG_FUNCTIONENTER__
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// Nothing here yet
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G4FFG_FUNCTIONLEAVE__}
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G4Ions* G4FPYNormalFragmentDist::GetFissionProduct()
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{
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G4FFG_FUNCTIONENTER__
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G4Ions* Particle = nullptr;
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// Generate a (0, 1] random number and return the respective particle.
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// The ENDF data tables lists 72172 as the largest fission fragment produced
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// for any fission event. The maximum alpha production is 10 and the
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// smallest fissile isotope is 90227. This means that if isotope 72172 were
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// selected as the first daughter product, then at 10 alpha particles only
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// 15 nucleons and -2 protons would remain for the second daughter product.
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// Although the actual probability of this occurring is very small, or 0 in
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// this case, a check should still be made to ensure that the second
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// daughter product can be physically realized. This would prevent a
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// situation such as this extreme example which results in a nucleus of 13
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// neutrons and 2 anti-protons.
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// This quick sanity check may become even more valid if the ENDF data
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// tables are expanded in the future and include larger fission products.
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G4int icounter = 0;
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G4int icounter_max = 1024;
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do {
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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 "
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<< __FILE__ << "." << G4endl;
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break;
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}
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Particle = FindParticle(RandomEngine_->G4SampleUniform());
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} while (Particle->GetAtomicMass() > RemainingA_ + 1
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|| Particle->GetAtomicNumber() > RemainingZ_ + 1);
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// Loop checking, 11.05.2015, T. Koi
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G4FFG_FUNCTIONLEAVE__
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return Particle;
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}
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G4FPYNormalFragmentDist::~G4FPYNormalFragmentDist()
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{
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G4FFG_FUNCTIONENTER__
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// Empty - all the data elements to be deconstructed are removed by
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// ~G4FissionProductYieldDist()
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G4FFG_FUNCTIONLEAVE__
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}
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