Gabriele Cosmo
176 lines
5.9 KiB
C++
176 lines
5.9 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// $Id: G4BraggIonModel.hh,v 1.2 2004/11/10 08:53:18 vnivanch Exp $
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// GEANT4 tag $Name: geant4-07-00-cand-01 $
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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: G4BraggIonModel
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 13.10.2004
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//
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// Modifications:
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// 09-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
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//
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// Class Description:
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//
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// Implementation of energy loss and delta-electron production
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// by heavy slow charged particles using eveluated data
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// -------------------------------------------------------------------
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//
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#ifndef G4BraggIonModel_h
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#define G4BraggIonModel_h 1
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#include "G4VEmModel.hh"
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class G4BraggIonModel : public G4VEmModel
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{
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public:
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G4BraggIonModel(const G4ParticleDefinition* p = 0, const G4String& nam = "BraggIon");
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virtual ~G4BraggIonModel();
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void Initialise(const G4ParticleDefinition*, const G4DataVector&);
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G4double HighEnergyLimit(const G4ParticleDefinition*);
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G4double LowEnergyLimit(const G4ParticleDefinition*);
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void SetHighEnergyLimit(G4double e) {highKinEnergy = e;};
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void SetLowEnergyLimit(G4double e) {lowKinEnergy = e;};
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G4double MinEnergyCut(const G4ParticleDefinition*,
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const G4MaterialCutsCouple*);
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G4bool IsInCharge(const G4ParticleDefinition*);
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G4double ComputeDEDX(const G4MaterialCutsCouple*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy);
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G4double CrossSection(const G4MaterialCutsCouple*,
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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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G4DynamicParticle* SampleSecondary(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy);
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std::vector<G4DynamicParticle*>* SampleSecondaries(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double maxEnergy);
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G4double MaxSecondaryEnergy(const G4DynamicParticle*);
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protected:
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G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
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G4double kinEnergy);
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private:
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void SetParticle(const G4ParticleDefinition* p);
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G4double HeEffChargeSquare(G4double z, G4double kinEnergy) const;
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// hide assignment operator
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G4BraggIonModel & operator=(const G4BraggIonModel &right);
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G4BraggIonModel(const G4BraggIonModel&);
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G4bool HasMaterial(const G4Material* material);
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G4double StoppingPower(const G4Material* material,
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G4double kineticEnergy);
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G4double ElectronicStoppingPower(G4double z,
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G4double kineticEnergy) const;
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void SetMoleculaNumber(G4int number) {iMolecula = number;};
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G4double DEDX(const G4Material* material, G4double kineticEnergy);
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const G4ParticleDefinition* particle;
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G4double mass;
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G4double spin;
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G4double chargeSquare;
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G4double HeMassAMU;
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G4double massRate;
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G4double ratio;
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G4double highKinEnergy;
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G4double lowKinEnergy;
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G4double lowestKinEnergy;
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G4double rateMass;
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G4double theZieglerFactor;
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G4int iMolecula; // index in the molecula's table
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G4bool isIon;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4BraggIonModel::MaxSecondaryEnergy(
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const G4ParticleDefinition* pd,
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G4double kinEnergy)
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{
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if(isIon) SetParticle(pd);
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G4double tau = kinEnergy/mass;
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G4double tmax = 2.0*electron_mass_c2*tau*(tau + 2.) /
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(1. + 2.0*(tau + 1.)*ratio + ratio*ratio);
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return tmax;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4BraggIonModel::MaxSecondaryEnergy(const G4DynamicParticle* dp)
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{
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if(isIon) {
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mass = dp->GetMass();
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ratio = electron_mass_c2/mass;
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}
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G4double tau = dp->GetKineticEnergy()/mass;
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G4double tmax = 2.0*electron_mass_c2*tau*(tau + 2.) /
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(1. + 2.0*(tau + 1.)*ratio + ratio*ratio);
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return tmax;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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