G4ParticleHPThermalScattering.hh

Go to the documentation of this file.

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
//
// P. Arce, June-2014 Conversion neutron_hp to particle_hp
//
#ifndef G4ParticleHPThermalScattering_h
#define G4ParticleHPThermalScattering_h 1
 
// Thermal Neutron Scattering
// Koi, Tatsumi (SLAC/SCCS)
//
// Class Description
// Final State Generators for a high precision (based on evaluated data
// libraries) description of themal neutron scattering below 4 eV;
// Based on Thermal neutron scattering files
// from the evaluated nuclear data files ENDF/B-VI, Release2
// To be used in your physics list in case you need this physics.
// In this case you want to register an object of this class with
// the corresponding process.
// Class Description - End
 
#include "G4HadronicInteraction.hh"
#include "G4ParticleHPThermalScatteringNames.hh"
#include "globals.hh"
 
class G4ParticleHPThermalScatteringData;
class G4ParticleHPElastic;
 
struct E_isoAng
{
    G4double energy;
    G4int n;
    std::vector<G4double> isoAngle;
    E_isoAng()
    {
      energy = 0.0;
      n = 0;
    };
};
 
struct E_P_E_isoAng
{
    G4double energy;
    G4int n;
    std::vector<G4double> prob;
    std::vector<E_isoAng*> vE_isoAngle;
    G4double sum_of_probXdEs;  // should be close to 1
    std::vector<G4double> secondary_energy_cdf;
    std::vector<G4double> secondary_energy_pdf;
    std::vector<G4double> secondary_energy_value;
    G4int secondary_energy_cdf_size;
    E_P_E_isoAng()
    {
      energy = 0.0;
      n = 0;
      sum_of_probXdEs = 0.0;
      secondary_energy_cdf_size = 0;
    };
};
 
class G4ParticleHPThermalScattering : public G4HadronicInteraction
{
  public:
    G4ParticleHPThermalScattering();
 
    ~G4ParticleHPThermalScattering() override;
 
    G4HadFinalState* ApplyYourself(const G4HadProjectile& aTrack,
                                   G4Nucleus& aTargetNucleus) override;
 
    const std::pair<G4double, G4double> GetFatalEnergyCheckLevels() const override;
 
    // For user prepared thermal files
    // Name of G4Element , Name of NDL file
    void AddUserThermalScatteringFile(G4String, G4String);
 
    void BuildPhysicsTable(const G4ParticleDefinition&) override;
 
    void ModelDescription(std::ostream& outFile) const override;
 
  private:
    void clearCurrentFSData();
 
    G4ParticleHPThermalScatteringNames names;
 
    // Coherent Elastic
    //         ElementID             temp                             BraggE     cumulativeP
    std::map<G4int, std::map<G4double, std::vector<std::pair<G4double, G4double>*>*>*>* coherentFSs{
      nullptr};
    std::map<G4double, std::vector<std::pair<G4double, G4double>*>*>* readACoherentFSDATA(G4String);
 
    // Incoherent Elastic
    //         ElementID          temp       aFS for this temp (and this element)
    std::map<G4int, std::map<G4double, std::vector<E_isoAng*>*>*>* incoherentFSs{nullptr};
    std::map<G4double, std::vector<E_isoAng*>*>* readAnIncoherentFSDATA(G4String);
    E_isoAng* readAnE_isoAng(std::istream*);
 
    // Inelastic
    //         ElementID          temp        aFS for this temp (and this element)
    std::map<G4int, std::map<G4double, std::vector<E_P_E_isoAng*>*>*>* inelasticFSs{nullptr};
    std::map<G4double, std::vector<E_P_E_isoAng*>*>* readAnInelasticFSDATA(G4String);
    E_P_E_isoAng* readAnE_P_E_isoAng(std::istream*);
 
    G4ParticleHPThermalScatteringData* theXSection;
 
    G4ParticleHPElastic* theHPElastic;
 
    G4double getMu(E_isoAng*);
    G4double getMu(G4double rndm1, G4double rndm2, E_isoAng* anEPM);
 
    std::pair<G4double, G4double> find_LH(G4double, std::vector<G4double>*);
    G4double get_linear_interpolated(G4double, std::pair<G4double, G4double>,
                                     std::pair<G4double, G4double>);
 
    E_isoAng create_E_isoAng_from_energy(G4double, std::vector<E_isoAng*>*);
 
    G4double get_secondary_energy_from_E_P_E_isoAng(G4double random, E_P_E_isoAng* anE_P_E_isoAng);
 
    std::pair<G4double, G4double> sample_inelastic_E_mu(G4double pE,
                                                        std::vector<E_P_E_isoAng*>* vNEP_EPM);
    std::pair<G4double, G4int> sample_inelastic_E(G4double rndm1, G4double rndm2,
                                                  E_P_E_isoAng* anE_P_E_isoAng);
 
    std::pair<G4double, E_isoAng>
    create_sE_and_EPM_from_pE_and_vE_P_E_isoAng(G4double, G4double, std::vector<E_P_E_isoAng*>*);
 
    std::map<std::pair<const G4Material*, const G4Element*>, G4int> dic;
    void buildPhysicsTable();
    G4int getTS_ID(const G4Material*, const G4Element*);
 
    // size_t sizeOfMaterialTable;
 
    G4bool check_E_isoAng(E_isoAng*);
 
    // In order to judge whether the rebuilding of physics table is a necessity or not
    size_t nMaterial;
    size_t nElement;
};
 
#endif