Gabriele Cosmo
202 lines
7.8 KiB
C++
202 lines
7.8 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
|
|
// class description
|
|
//
|
|
// The class contains few (physical) quantities related to the Ionisation
|
|
// process, for a material defined by its pointer G4Material*
|
|
//
|
|
// 09-07-98: data moved from G4Material (mma)
|
|
// 09-03-01: copy constructor and assignement operator in public (mma)
|
|
// 28-10-02: add setMeanExcitationEnergy (V.Ivanchenko)
|
|
// 27-09-07: add computation of parameters for ions (V.Ivanchenko)
|
|
// 04-03-08: add fBirks constant (mma)
|
|
// 16-01-19, add exact computation of the density effect (M. Strait)
|
|
|
|
#ifndef G4IonisParamMat_HH
|
|
#define G4IonisParamMat_HH
|
|
|
|
#include "G4DensityEffectCalculator.hh"
|
|
#include "G4ios.hh"
|
|
#include "globals.hh"
|
|
|
|
class G4Material;
|
|
class G4DensityEffectData;
|
|
|
|
class G4IonisParamMat
|
|
{
|
|
public:
|
|
G4IonisParamMat(const G4Material*);
|
|
~G4IonisParamMat();
|
|
G4IonisParamMat& operator=(const G4IonisParamMat&) = delete;
|
|
G4IonisParamMat(const G4IonisParamMat&) = delete;
|
|
|
|
// parameters for mean energy loss calculation:
|
|
inline G4double GetMeanExcitationEnergy() const { return fMeanExcitationEnergy; };
|
|
|
|
void SetMeanExcitationEnergy(G4double value);
|
|
G4double FindMeanExcitationEnergy(const G4Material*) const;
|
|
|
|
inline G4double GetLogMeanExcEnergy() const { return fLogMeanExcEnergy; };
|
|
inline G4double* GetShellCorrectionVector() const { return fShellCorrectionVector; };
|
|
inline G4double GetTaul() const { return fTaul; };
|
|
|
|
// parameters of the density correction:
|
|
inline G4double GetPlasmaEnergy() const { return fPlasmaEnergy; };
|
|
inline G4double GetAdjustmentFactor() const { return fAdjustmentFactor; };
|
|
inline G4double GetCdensity() const { return fCdensity; };
|
|
inline G4double GetMdensity() const { return fMdensity; };
|
|
inline G4double GetAdensity() const { return fAdensity; };
|
|
inline G4double GetX0density() const { return fX0density; };
|
|
inline G4double GetX1density() const { return fX1density; };
|
|
inline G4double GetD0density() const { return fD0density; };
|
|
|
|
// user defined density correction parameterisation
|
|
void SetDensityEffectParameters(
|
|
G4double cd, G4double md, G4double ad, G4double x0, G4double x1, G4double d0);
|
|
|
|
// defined density correction parameterisation via base material
|
|
void SetDensityEffectParameters(const G4Material* bmat);
|
|
|
|
void ComputeDensityEffectOnFly(G4bool);
|
|
|
|
inline G4DensityEffectCalculator* GetDensityEffectCalculator() const
|
|
{
|
|
return fDensityEffectCalc;
|
|
}
|
|
|
|
// compute density correction as a function of the kinematic variable
|
|
// x = log10(beta*gamma) using parameterisation of calculator
|
|
inline G4double DensityCorrection(G4double x) const
|
|
{
|
|
return (nullptr == fDensityEffectCalc) ? GetDensityCorrection(x)
|
|
: fDensityEffectCalc->ComputeDensityCorrection(x);
|
|
}
|
|
|
|
// use parameterisation
|
|
G4double GetDensityCorrection(G4double x) const;
|
|
|
|
static G4DensityEffectData* GetDensityEffectData();
|
|
|
|
// parameters of the energy loss fluctuation model:
|
|
inline G4double GetF1fluct() const { return fF1fluct; };
|
|
inline G4double GetF2fluct() const { return fF2fluct; };
|
|
inline G4double GetEnergy1fluct() const { return fEnergy1fluct; };
|
|
inline G4double GetLogEnergy1fluct() const { return fLogEnergy1fluct; };
|
|
inline G4double GetEnergy2fluct() const { return fEnergy2fluct; };
|
|
inline G4double GetLogEnergy2fluct() const { return fLogEnergy2fluct; };
|
|
inline G4double GetEnergy0fluct() const { return fEnergy0fluct; };
|
|
inline G4double GetRateionexcfluct() const { return fRateionexcfluct; };
|
|
|
|
// parameters for ion corrections computations
|
|
inline G4double GetZeffective() const { return fZeff; };
|
|
inline G4double GetFermiEnergy() const { return fFermiEnergy; };
|
|
inline G4double GetLFactor() const { return fLfactor; };
|
|
inline G4double GetInvA23() const { return fInvA23; };
|
|
|
|
// parameters for Birks attenuation:
|
|
inline void SetBirksConstant(G4double value) { fBirks = value; };
|
|
inline G4double GetBirksConstant() const { return fBirks; };
|
|
|
|
// parameters for average energy per ion
|
|
inline void SetMeanEnergyPerIonPair(G4double value) { fMeanEnergyPerIon = value; };
|
|
inline G4double GetMeanEnergyPerIonPair() const { return fMeanEnergyPerIon; };
|
|
|
|
// parameter for sampling of positron annihilation at rest
|
|
inline void SetOrtoPositroniumFraction(G4double value) { fOrtoPositroniumFraction = value; };
|
|
inline G4double GetOrtoPositroniumFraction() const { return fOrtoPositroniumFraction; };
|
|
|
|
|
|
// operators
|
|
G4bool operator==(const G4IonisParamMat&) const = delete;
|
|
G4bool operator!=(const G4IonisParamMat&) const = delete;
|
|
|
|
private:
|
|
// Compute mean parameters : ExcitationEnergy,Shell corretion vector ...
|
|
void ComputeMeanParameters();
|
|
|
|
// Compute parameters for the density effect
|
|
void ComputeDensityEffectParameters();
|
|
|
|
// Compute parameters for the energy fluctuation model
|
|
void ComputeFluctModel();
|
|
|
|
// Compute parameters for ion parameterizations
|
|
void ComputeIonParameters();
|
|
|
|
//
|
|
// data members
|
|
//
|
|
const G4Material* fMaterial; // this material
|
|
|
|
G4DensityEffectCalculator* fDensityEffectCalc; // online calculator
|
|
G4double* fShellCorrectionVector; // shell correction coefficients
|
|
|
|
// parameters for mean energy loss calculation
|
|
G4double fMeanExcitationEnergy; //
|
|
G4double fLogMeanExcEnergy; //
|
|
G4double fTaul; // lower limit of Bethe-Bloch formula
|
|
|
|
// parameters of the density correction
|
|
G4double fCdensity; // mat.constant
|
|
G4double fMdensity; // exponent
|
|
G4double fAdensity; //
|
|
G4double fX0density; //
|
|
G4double fX1density; //
|
|
G4double fD0density;
|
|
|
|
G4double fPlasmaEnergy;
|
|
G4double fAdjustmentFactor;
|
|
|
|
// parameters of the energy loss fluctuation model
|
|
G4double fF1fluct;
|
|
G4double fF2fluct;
|
|
G4double fEnergy1fluct;
|
|
G4double fLogEnergy1fluct;
|
|
G4double fEnergy2fluct;
|
|
G4double fLogEnergy2fluct;
|
|
G4double fEnergy0fluct;
|
|
G4double fRateionexcfluct;
|
|
|
|
// parameters for ion corrections computations
|
|
G4double fZeff;
|
|
G4double fFermiEnergy;
|
|
G4double fLfactor;
|
|
G4double fInvA23;
|
|
|
|
// parameter for Birks attenuation
|
|
G4double fBirks;
|
|
// average energy per ion pair
|
|
G4double fMeanEnergyPerIon;
|
|
G4double twoln10;
|
|
// parameter for sampling of positron annihilation at rest
|
|
G4double fOrtoPositroniumFraction{0.035};
|
|
|
|
// static data created only once
|
|
static G4DensityEffectData* fDensityData;
|
|
};
|
|
|
|
#endif
|