Gabriele Cosmo
138 lines
5.0 KiB
C++
138 lines
5.0 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: G4FPYBiasedLightFragmentDist.cc
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* Author: B. Wendt (wendbryc@isu.edu)
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*
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* Created on June 2, 2011, 11:02 AM
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*/
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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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#include "G4FFGDebuggingMacros.hh"
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#include "G4FFGEnumerations.hh"
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#include "G4FPYBiasedLightFragmentDist.hh"
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#include "G4FissionProductYieldDist.hh"
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G4FPYBiasedLightFragmentDist::
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G4FPYBiasedLightFragmentDist( 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& dataStream )
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: G4FissionProductYieldDist( WhichIsotope,
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WhichMetaState,
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WhichCause,
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WhichYieldType,
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dataStream)
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{
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// Initialize the class
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Initialize();
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}
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G4FPYBiasedLightFragmentDist::
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G4FPYBiasedLightFragmentDist( 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,
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std::istringstream& dataStream)
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: G4FissionProductYieldDist( WhichIsotope,
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WhichMetaState,
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WhichCause,
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WhichYieldType,
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Verbosity,
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dataStream )
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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 G4FPYBiasedLightFragmentDist::
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Initialize( void )
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{
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G4FFG_FUNCTIONENTER__
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// Initialize the half-weight for fission product sampling
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HalfWeight_ = (G4int)floor((Isotope_ % 1000) / 2.0);
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G4FFG_FUNCTIONLEAVE__
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}
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G4Ions* G4FPYBiasedLightFragmentDist::
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GetFissionProduct( void )
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{
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G4FFG_FUNCTIONENTER__
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G4Ions* Particle;
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G4bool IsHeavy;
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G4bool IsNotFeasable;
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G4int Counter;
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Counter = 0;
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do
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{
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// If we have sampled too many times then we may need to do something else
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if(Counter == 1000)
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{
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Particle = NULL;
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break;
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}
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// Generate a (0, 1] random number, then find the corresponding particle
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Particle = FindParticle(RandomEngine_->G4SampleUniform());
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// If the daughter is heavier than half of the original nucleus weight
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// or not physically feasable then set the flags to sample again
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IsHeavy = (Particle->GetAtomicMass() > HalfWeight_);
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IsNotFeasable = (Particle->GetAtomicMass() > RemainingA_ + 1
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|| Particle->GetAtomicNumber() > RemainingZ_ + 1);
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Counter++;
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} while (IsHeavy || IsNotFeasable); // Loop checking, 11.05.2015, T. Koi
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// Something went wrong, so figure out how to fix it
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if(Particle == NULL)
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{
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/// \todo Figure out what to do if a suitable particle is not found in 1000 iterations
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}
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// Return the G4ParticleDefintion pointer to the random light fragment
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G4FFG_FUNCTIONLEAVE__
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return Particle;
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}
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G4FPYBiasedLightFragmentDist::~G4FPYBiasedLightFragmentDist( void )
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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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