Gabriele Cosmo
153 lines
5.2 KiB
C++
153 lines
5.2 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 Class header file
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//
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//
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// File name: G4NeutronElasticXS
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//
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// Author Ivantchenko, Geant4, 3-AUG-09
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//
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// Class Description:
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// This is a base class for neutron elastic hadronic cross section based on
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// data files from G4PARTICLEXSDATA data set
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// Class Description - End
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#ifndef G4NeutronElasticXS_h
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#define G4NeutronElasticXS_h 1
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#include "G4VCrossSectionDataSet.hh"
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#include "globals.hh"
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#include "G4ElementData.hh"
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#include "G4PhysicsVector.hh"
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class G4DynamicParticle;
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class G4ParticleDefinition;
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class G4Element;
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class G4VComponentCrossSection;
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class G4NeutronElasticXS final : public G4VCrossSectionDataSet
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{
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public:
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G4NeutronElasticXS();
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~G4NeutronElasticXS() override = default;
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static const char* Default_Name() {return "G4NeutronElasticXS";}
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G4bool IsElementApplicable(const G4DynamicParticle*,
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G4int Z, const G4Material*) final;
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G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
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const G4Element*, const G4Material*) final;
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G4double GetElementCrossSection(const G4DynamicParticle*,
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G4int Z, const G4Material*) final;
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G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
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const G4Isotope* iso,
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const G4Element* elm,
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const G4Material* mat) final;
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G4double ComputeCrossSectionPerElement(G4double kinEnergy, G4double loge,
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const G4ParticleDefinition*,
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const G4Element*,
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const G4Material*) final;
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G4double ComputeIsoCrossSection(G4double kinEnergy, G4double loge,
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const G4ParticleDefinition*,
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G4int Z, G4int A,
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const G4Isotope* iso,
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const G4Element* elm,
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const G4Material* mat) final;
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const G4Isotope* SelectIsotope(const G4Element*,
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G4double kinEnergy, G4double logE) final;
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void BuildPhysicsTable(const G4ParticleDefinition&) final;
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void CrossSectionDescription(std::ostream&) const final;
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G4double ElementCrossSection(G4double kinEnergy, G4double loge, G4int Z);
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G4NeutronElasticXS& operator=(const G4NeutronElasticXS &right) = delete;
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G4NeutronElasticXS(const G4NeutronElasticXS&) = delete;
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private:
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void Initialise(G4int Z);
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void InitialiseOnFly(G4int Z);
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const G4String& FindDirectoryPath();
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inline const G4PhysicsVector* GetPhysicsVector(G4int Z);
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inline const G4PhysicsVector* GetPhysicsVectorR(G4int Z);
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G4PhysicsVector* RetrieveVector(std::ostringstream& in, G4bool warn);
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G4VComponentCrossSection* ggXsection{nullptr};
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const G4ParticleDefinition* neutron;
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G4bool isInitializer{false};
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G4bool fRfilesEnabled{false};
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static const G4int MAXZEL = 93;
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static G4ElementData* data;
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static G4ElementData* dataR;
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static G4double coeff[MAXZEL];
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static G4String gDataDirectory;
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};
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inline const
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G4PhysicsVector* G4NeutronElasticXS::GetPhysicsVector(G4int Z)
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{
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const G4PhysicsVector* pv = data->GetElementData(Z);
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if (pv == nullptr) {
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InitialiseOnFly(Z);
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pv = data->GetElementData(Z);
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}
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return pv;
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}
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inline
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const G4PhysicsVector* G4NeutronElasticXS::GetPhysicsVectorR(G4int Z)
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{
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const G4PhysicsVector* pv = dataR->GetElementData(Z);
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if (pv == nullptr) {
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InitialiseOnFly(Z);
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pv = dataR->GetElementData(Z);
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}
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return pv;
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}
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#endif
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