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geant4/source/processes/electromagnetic/muons/include/G4MuBetheBlochModel.hh
2024-12-06 11:11:40 +01:00

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//
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// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name: G4MuBetheBlochModel
//
// Author: Vladimir Ivanchenko on base of Laszlo Urban code
//
// Creation date: 09.08.2002
//
// Modifications:
//
// 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
// 24-01-03 Make models region aware (V.Ivanchenko)
// 13-02-03 Add Nama (V.Ivanchenko)
// 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I)
// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
// 12-04-05 Add usage of G4EmCorrections (V.Ivanchenko)
// 13-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
//
//
// Class Description:
//
// Implementation of Bethe-Bloch model of energy loss and
// delta-electron production by heavy charged particles
// -------------------------------------------------------------------
//
#ifndef G4MuBetheBlochModel_h
#define G4MuBetheBlochModel_h 1
#include "G4VEmModel.hh"
class G4ParticleChangeForLoss;
class G4EmCorrections;
class G4MuBetheBlochModel : public G4VEmModel
{
public:
explicit G4MuBetheBlochModel(const G4ParticleDefinition* p = nullptr,
const G4String& nam = "MuBetheBloch");
~G4MuBetheBlochModel() override = default;
void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
G4double MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple*) override;
G4double ComputeCrossSectionPerElectron(
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy,
G4double maxEnergy);
G4double ComputeCrossSectionPerAtom(
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double Z, G4double A,
G4double cutEnergy,
G4double maxEnergy) override;
G4double CrossSectionPerVolume(const G4Material*,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy,
G4double maxEnergy) override;
G4double ComputeDEDXPerVolume(const G4Material*,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy) override;
void SampleSecondaries(std::vector<G4DynamicParticle*>*,
const G4MaterialCutsCouple*,
const G4DynamicParticle*,
G4double tmin,
G4double maxEnergy) override;
// hide assignment operator
G4MuBetheBlochModel & operator=(const G4MuBetheBlochModel &right) = delete;
G4MuBetheBlochModel(const G4MuBetheBlochModel&) = delete;
protected:
G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
G4double kinEnergy) override;
private:
void SetParticle(const G4ParticleDefinition* p);
const G4ParticleDefinition* particle = nullptr;
G4ParticleDefinition* theElectron = nullptr;
G4ParticleChangeForLoss* fParticleChange = nullptr;
G4EmCorrections* corr = nullptr;
G4double limitRadCorrection;
G4double limitKinEnergy;
G4double logLimitKinEnergy;
G4double mass = 1.0;
G4double massSquare = 1.0;
G4double ratio = 1.0;
G4double twoln10;
G4double alphaprime;
static G4double xgi[8],wgi[8];
};
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
#endif