Gabriele Cosmo
164 lines
5.6 KiB
C++
164 lines
5.6 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 Class header file
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//
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//
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// File name: G4MuBremsstrahlungModel
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//
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// Author: Vladimir Ivanchenko on base of Laszlo Urban code
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//
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// Creation date: 18.05.2002
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//
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// Modifications:
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//
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// 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
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// 27-01-03 Make models region aware (V.Ivanchenko)
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// 13-02-03 Add name (V.Ivanchenko)
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// 10-02-04 Add lowestKinEnergy (V.Ivanchenko)
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// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
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// 13-02-06 Add ComputeCrossSectionPerAtom (mma)
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// 11-10-07 Add ignoreCut flag (V.Ivanchenko)
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// 28-02-08 Reorganized protected methods and members (V.Ivanchenko)
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// 06-03-08 Remove obsolete methods and members (V.Ivanchenko)
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// 31-05-13 Use element selectors instead of local data (V.Ivanchenko)
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//
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// Class Description:
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//
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// Implementation of bremssrahlung by muons
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// A.G. Bogdanov et al., IEEE Trans. Nuc. Sci., Vol.53, No.2, 2006
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//
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// -------------------------------------------------------------------
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//
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#ifndef G4MuBremsstrahlungModel_h
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#define G4MuBremsstrahlungModel_h 1
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#include "G4VEmModel.hh"
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#include "G4NistManager.hh"
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#include "G4Exp.hh"
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class G4Element;
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class G4ParticleChangeForLoss;
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class G4MuBremsstrahlungModel : public G4VEmModel
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{
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public:
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explicit G4MuBremsstrahlungModel(const G4ParticleDefinition* p = nullptr,
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const G4String& nam = "MuBrem");
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~G4MuBremsstrahlungModel() override = default;
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void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
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void InitialiseLocal(const G4ParticleDefinition*,
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G4VEmModel* masterModel) override;
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G4double MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple*) override;
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G4double ComputeCrossSectionPerAtom(
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double Z, G4double A,
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G4double cutEnergy,
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G4double maxEnergy) override;
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G4double ComputeDEDXPerVolume(const G4Material*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy) override;
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void SampleSecondaries(std::vector<G4DynamicParticle*>*,
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy) override;
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inline void SetLowestKineticEnergy(G4double e);
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G4double MinPrimaryEnergy(const G4Material*, const G4ParticleDefinition*,
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G4double) override;
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// hide assignment operator
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G4MuBremsstrahlungModel &
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operator=(const G4MuBremsstrahlungModel &right) = delete;
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G4MuBremsstrahlungModel(const G4MuBremsstrahlungModel&) = delete;
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protected:
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G4double ComputMuBremLoss(G4double Z, G4double tkin, G4double cut);
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G4double ComputeMicroscopicCrossSection(G4double tkin,
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G4double Z,
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G4double cut);
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virtual G4double ComputeDMicroscopicCrossSection(G4double tkin,
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G4double Z,
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G4double gammaEnergy);
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void SetParticle(const G4ParticleDefinition*);
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protected:
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const G4ParticleDefinition* particle = nullptr;
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G4ParticleDefinition* theGamma = nullptr;
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G4ParticleChangeForLoss* fParticleChange = nullptr;
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G4NistManager* nist = nullptr;
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G4double mass = 1.0;
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G4double rmass = 1.0;
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G4double cc = 1.0;
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G4double coeff = 1.0;
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G4double sqrte;
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G4double bh = 202.4;
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G4double bh1 = 446.;
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G4double btf = 183.;
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G4double btf1 = 1429.;
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G4double lowestKinEnergy;
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G4double minThreshold;
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static const G4double xgi[6];
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static const G4double wgi[6];
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static G4double fDN[93];
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4MuBremsstrahlungModel::SetLowestKineticEnergy(G4double e)
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{
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lowestKinEnergy = e;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#endif
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