Gabriele Cosmo
222 lines
7.1 KiB
C++
222 lines
7.1 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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// GEANT4 Class header file
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//
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// File name: G4AtimaEnergyLossModel
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//
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// Author: Jose Luis Rodriguez Sanchez on base of ATIMA code
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//
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// Creation date: 16.01.2018
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//
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// Modifications:
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//
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//
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// Class Description:
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//
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// Implementation of ATIMA model of energy loss
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// by heavy charged particles
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// -------------------------------------------------------------------
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//
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#ifndef G4AtimaEnergyLossModel_h
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#define G4AtimaEnergyLossModel_h 1
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#include <CLHEP/Units/SystemOfUnits.h>
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#include "G4VEmModel.hh"
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#include "G4NistManager.hh"
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class G4EmCorrections;
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class G4ParticleChangeForLoss;
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class G4AtimaEnergyLossModel : public G4VEmModel
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{
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public:
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explicit G4AtimaEnergyLossModel(const G4ParticleDefinition* p = nullptr,
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const G4String& nam = "Atima");
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~G4AtimaEnergyLossModel() override;
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void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
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G4double MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple* couple) override;
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G4double ComputeCrossSectionPerElectron(
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double maxEnergy);
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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 CrossSectionPerVolume(const G4Material*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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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) override;
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G4double GetChargeSquareRatio(const G4ParticleDefinition* p,
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const G4Material* mat,
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G4double kineticEnergy) override;
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G4double GetParticleCharge(const G4ParticleDefinition* p,
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const G4Material* mat,
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G4double kineticEnergy) override;
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void CorrectionsAlongStep(const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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const G4double&,
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G4double&) 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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protected:
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G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
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G4double kinEnergy) override;
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inline G4double GetChargeSquareRatio() const;
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inline void SetChargeSquareRatio(G4double val);
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private:
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void SetupParameters();
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inline void SetParticle(const G4ParticleDefinition* p);
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inline void SetGenericIon(const G4ParticleDefinition* p);
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G4double StoppingPower(G4double ap, G4double zp, G4double ep, G4double at, G4double zt);
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G4double Bethek_dedx_e(G4double ap,G4double zp,G4double ep,G4double at,G4double zt);
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G4double dedx_n(const G4double ap, const G4double zp, const G4double ep, const G4double at, const G4double zt);
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G4double sezi_dedx_e(const G4double zp, const G4double ep, const G4double at, const G4double zt);
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G4double sezi_p_se(const G4double energy, const G4double at, const G4double zt);
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G4double EnergyTable_interpolate(G4double xval, const G4double* y);
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// hide assignment operator
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G4AtimaEnergyLossModel & operator=(const G4AtimaEnergyLossModel &right) = delete;
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G4AtimaEnergyLossModel(const G4AtimaEnergyLossModel&) = delete;
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const G4ParticleDefinition* particle;
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const G4ParticleDefinition* theElectron;
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G4EmCorrections* corr;
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G4ParticleChangeForLoss* fParticleChange;
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G4NistManager* nist;
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G4Pow* g4calc;
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G4double mass = 0.0;
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G4double tlimit = DBL_MAX;
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G4double spin = 0.0;
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G4double magMoment2 = 0.0;
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G4double chargeSquare = 1.0;
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G4double ratio = 1.0;
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G4double formfact = 0.0;
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G4double corrFactor = 1.0;
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G4double MLN10;
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G4double atomic_mass_unit;
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G4double dedx_constant;
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G4double electron_mass;
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G4double fine_structure;
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G4double domega2dx_constant;
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G4bool isIon = false;
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static G4double stepE;
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static G4double tableE[200];
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static const G4double element_atomic_weights[110];
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static const G4double ls_coefficients_a[110][200];
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static const G4double ls_coefficients_ahi[110][200];
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static const G4double proton_stopping_coef[92][8];
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static const G4double ionisation_potentials_z[121];
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static const G4double atima_vfermi[92];
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static const G4double atima_lambda_screening[92];
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static const G4double x0[92];
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static const G4double x1[92];
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static const G4double afermi[92];
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static const G4double c[92];
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static const G4double m0[92];
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static const G4double del_0[92];
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4AtimaEnergyLossModel::SetParticle(const G4ParticleDefinition* p)
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{
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if(particle != p) {
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particle = p;
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if(p->GetBaryonNumber() > 3 || p->GetPDGCharge() > CLHEP::eplus)
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{ isIon = true; }
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SetupParameters();
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4AtimaEnergyLossModel::SetGenericIon(const G4ParticleDefinition* p)
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{
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if(p && p->GetParticleName() == "GenericIon") { isIon = true; }
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4AtimaEnergyLossModel::GetChargeSquareRatio() const
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{
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return chargeSquare;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4AtimaEnergyLossModel::SetChargeSquareRatio(G4double val)
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{
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chargeSquare = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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