Gabriele Cosmo
129 lines
4.1 KiB
C++
129 lines
4.1 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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// -------------------------------------------------------------------
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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: G4AtimaFluctuations
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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 ion energy loss fluctuations
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//
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// -------------------------------------------------------------------
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//
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#ifndef G4AtimaFluctuations_h
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#define G4AtimaFluctuations_h 1
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#include "G4VEmFluctuationModel.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4UniversalFluctuation.hh"
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class G4Pow;
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class G4AtimaFluctuations : public G4VEmFluctuationModel
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{
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public:
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explicit G4AtimaFluctuations(const G4String& nam = "IonFlucAtima");
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~G4AtimaFluctuations() override;
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// Sample fluctuations
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G4double SampleFluctuations(const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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const G4double tcut,
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const G4double tmax,
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const G4double length,
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const G4double meanLoss) override;
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// Compute dispertion
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G4double Dispersion(const G4Material*,
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const G4DynamicParticle*,
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const G4double tcut,
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const G4double tmax,
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const G4double length) override;
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// Initialisation prerun
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void InitialiseMe(const G4ParticleDefinition*) override;
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// Initialisation prestep
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void SetParticleAndCharge(const G4ParticleDefinition*,
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G4double q2) override;
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// hide assignment operator
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G4AtimaFluctuations & operator=(const G4AtimaFluctuations &right) = delete;
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G4AtimaFluctuations(const G4AtimaFluctuations&) = delete;
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private:
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G4double EnergyTable_interpolate(const G4double* table,G4double xval, const G4double* y);
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const G4ParticleDefinition* particle;
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G4Pow* g4calc;
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G4double particleMass;
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G4double charge;
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G4double chargeSquare;
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G4double effChargeSquare;
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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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static G4double stepE;
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static G4double tableE[200];
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static const G4double ls_X_coefficients_a[110][200];
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static const G4double ls_X_coefficients_ahi[110][200];
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static const G4double element_atomic_weights[110];
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// data members to speed up the fluctuation calculation
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G4double minLoss;
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// cash
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G4double kineticEnergy;
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G4double beta2;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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