Gabriele Cosmo
209 lines
6.6 KiB
C++
209 lines
6.6 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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// $Id: G4BetheBlochModel.hh 96934 2016-05-18 09:10:41Z gcosmo $
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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: G4BetheBlochModel
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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: 03.01.2002
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//
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// Modifications:
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//
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// 23-12-02 V.Ivanchenko change interface in order to moveto cut per region
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// 24-01-03 Make models region aware (V.Ivanchenko)
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// 13-02-03 Add name (V.Ivanchenko)
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// 12-11-03 Fix for GenericIons (V.Ivanchenko)
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// 24-03-05 Add G4EmCorrections (V.Ivanchenko)
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// 11-04-05 Major optimisation of internal interfaces (V.Ivanchenko)
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// 11-04-04 Move MaxSecondaryEnergy to models (V.Ivanchenko)
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// 11-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
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// 12-08-08 Added methods GetParticleCharge, GetChargeSquareRatio,
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// CorrectionsAlongStep needed for ions(V.Ivanchenko)
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//
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// Class Description:
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//
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// Implementation of Bethe-Bloch model of energy loss and
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// delta-electron production by heavy charged particles
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// -------------------------------------------------------------------
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//
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#ifndef G4BetheBlochModel_h
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#define G4BetheBlochModel_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 G4BetheBlochModel : public G4VEmModel
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{
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public:
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explicit G4BetheBlochModel(const G4ParticleDefinition* p = nullptr,
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const G4String& nam = "BetheBloch");
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virtual ~G4BetheBlochModel();
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virtual void Initialise(const G4ParticleDefinition*,
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const G4DataVector&) override;
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virtual G4double MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple* couple) override;
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virtual 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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virtual 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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virtual 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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virtual 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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virtual G4double GetChargeSquareRatio(const G4ParticleDefinition* p,
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const G4Material* mat,
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G4double kineticEnergy) override;
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virtual G4double GetParticleCharge(const G4ParticleDefinition* p,
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const G4Material* mat,
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G4double kineticEnergy) override;
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virtual void CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
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const G4DynamicParticle* dp,
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G4double& eloss,
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G4double&,
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G4double length) override;
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virtual 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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virtual 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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// hide assignment operator
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G4BetheBlochModel & operator=(const G4BetheBlochModel &right) = delete;
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G4BetheBlochModel(const G4BetheBlochModel&) = delete;
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const G4ParticleDefinition* particle;
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G4ParticleDefinition* theElectron;
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G4EmCorrections* corr;
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G4ParticleChangeForLoss* fParticleChange;
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G4NistManager* nist;
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G4double mass;
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G4double tlimit;
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G4double spin;
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G4double magMoment2;
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G4double chargeSquare;
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G4double ratio;
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G4double formfact;
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G4double twoln10;
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G4double corrFactor;
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G4bool isIon;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline void G4BetheBlochModel::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 G4BetheBlochModel::SetGenericIon(const G4ParticleDefinition* p)
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{
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if(p && particle != p) {
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if(p->GetParticleName() == "GenericIon") { isIon = true; }
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4BetheBlochModel::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 G4BetheBlochModel::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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