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geant4/source/processes/electromagnetic/standard/include/G4PAIySection.hh
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Gabriele Cosmo 6399a014b6 Import Geant4 11.0.0.beta source tree
2021-06-25 16:12:29 +02:00

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//
// ********************************************************************
// * 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. *
// ********************************************************************
//
// G4PAIySection.hh -- header file
//
//
// Preparation of ionizing collision cross section according to Photo Absorption
// Ionization (PAI) model for simulation of ionization energy losses in very thin
// absorbers. Author: Vladimir.Grichine@cern.ch
//
// History:
//
// 01.10.07, V.Ivanchenko create using V.Grichine G4PAIxSection class
// 21.11.10, V.Grichine fVerbose and SetVerbose added
// 28.10.11, V.Ivanchenko Migration of exceptions to the new design
#ifndef G4PAIYSECTION_HH
#define G4PAIYSECTION_HH
#include "G4ios.hh"
#include "globals.hh"
#include "Randomize.hh"
#include "G4SandiaTable.hh"
class G4PAIySection
{
public:
explicit G4PAIySection();
~G4PAIySection() = default;
void Initialize(const G4Material* material, G4double maxEnergyTransfer,
G4double betaGammaSq, G4SandiaTable*);
void ComputeLowEnergyCof(const G4Material* material);
void InitPAI();
void NormShift( G4double betaGammaSq );
void SplainPAI( G4double betaGammaSq );
// Physical methods
G4double RutherfordIntegral( G4int intervalNumber,
G4double limitLow,
G4double limitHigh );
G4double ImPartDielectricConst( G4int intervalNumber,
G4double energy );
G4double RePartDielectricConst(G4double energy);
G4double DifPAIySection( G4int intervalNumber,
G4double betaGammaSq );
G4double PAIdNdxCerenkov( G4int intervalNumber,
G4double betaGammaSq );
G4double PAIdNdxPlasmon( G4int intervalNumber,
G4double betaGammaSq );
void IntegralPAIySection();
void IntegralCerenkov();
void IntegralPlasmon();
G4double SumOverInterval(G4int intervalNumber);
G4double SumOverIntervaldEdx(G4int intervalNumber);
G4double SumOverInterCerenkov(G4int intervalNumber);
G4double SumOverInterPlasmon(G4int intervalNumber);
G4double SumOverBorder( G4int intervalNumber,
G4double energy );
G4double SumOverBorderdEdx( G4int intervalNumber,
G4double energy );
G4double SumOverBordCerenkov( G4int intervalNumber,
G4double energy );
G4double SumOverBordPlasmon( G4int intervalNumber,
G4double energy );
G4double GetStepEnergyLoss( G4double step );
G4double GetStepCerenkovLoss( G4double step );
G4double GetStepPlasmonLoss( G4double step );
G4double GetLorentzFactor(G4int j) const;
// Inline access functions
inline G4int GetNumberOfGammas() const { return fNumberOfGammas; }
inline G4int GetSplineSize() const { return fSplineNumber; }
inline G4int GetIntervalNumber() const { return fIntervalNumber; }
inline G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i]; }
inline G4double GetDifPAIySection(G4int i){ return fDifPAIySection[i]; }
inline G4double GetPAIdNdxCrenkov(G4int i){ return fdNdxCerenkov[i]; }
inline G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i]; }
inline G4double GetMeanEnergyLoss() const {return fIntegralPAIySection[0]; }
inline G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0]; }
inline G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0]; }
inline G4double GetNormalizationCof() const { return fNormalizationCof; }
inline G4double GetPAItable(G4int i,G4int j) const;
inline G4double GetSplineEnergy(G4int i) const;
inline G4double GetIntegralPAIySection(G4int i) const;
inline G4double GetIntegralPAIdEdx(G4int i) const;
inline G4double GetIntegralCerenkov(G4int i) const;
inline G4double GetIntegralPlasmon(G4int i) const;
inline void SetVerbose(G4int v) { fVerbose = v; };
G4PAIySection & operator=(const G4PAIySection &right) = delete;
G4PAIySection(const G4PAIySection&) = delete;
private :
void CallError(G4int i, const G4String& methodName) const;
// Local class constants
static const G4double fDelta; // energy shift from interval border = 0.001
static const G4double fError; // error in lin-log approximation = 0.005
static G4int fNumberOfGammas; // = 111;
static const G4double fLorentzFactor[112]; // static gamma array
static
const G4int fRefGammaNumber; // The number of gamma for creation of spline (15)
G4int fIntervalNumber ; // The number of energy intervals
G4double fNormalizationCof; // Normalization cof for PhotoAbsorptionXsection
G4double betaBohr;
G4double betaBohr4;
G4double fDensity; // Current density
G4double fElectronDensity; // Current electron (number) density
G4double fLowEnergyCof; // Correction cof for low energy region
G4int fSplineNumber; // Current size of spline
G4int fVerbose; // verbose flag
G4SandiaTable* fSandia;
G4DataVector fEnergyInterval;
G4DataVector fA1;
G4DataVector fA2;
G4DataVector fA3;
G4DataVector fA4;
static
const G4int fMaxSplineSize; // Max size of output splain arrays = 500
G4DataVector fSplineEnergy; // energy points of splain
G4DataVector fRePartDielectricConst; // Real part of dielectric const
G4DataVector fImPartDielectricConst; // Imaginary part of dielectric const
G4DataVector fIntegralTerm; // Integral term in PAI cross section
G4DataVector fDifPAIySection; // Differential PAI cross section
G4DataVector fdNdxCerenkov; // dNdx of Cerenkov collisions
G4DataVector fdNdxPlasmon; // dNdx of Plasmon collisions
G4DataVector fIntegralPAIySection; // Integral PAI cross section ?
G4DataVector fIntegralPAIdEdx; // Integral PAI dEdx ?
G4DataVector fIntegralCerenkov; // Integral Cerenkov N>omega ?
G4DataVector fIntegralPlasmon; // Integral Plasmon N>omega ?
G4double fPAItable[500][112]; // Output array
};
inline G4double G4PAIySection::GetPAItable(G4int i, G4int j) const
{
return fPAItable[i][j];
}
inline G4double G4PAIySection::GetSplineEnergy(G4int i) const
{
if(i < 1 || i > fSplineNumber) { CallError(i, "GetSplineEnergy"); }
return fSplineEnergy[i];
}
inline G4double G4PAIySection::GetIntegralPAIySection(G4int i) const
{
if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPAIySection"); }
return fIntegralPAIySection[i];
}
inline G4double G4PAIySection::GetIntegralPAIdEdx(G4int i) const
{
if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPAIdEdx"); }
return fIntegralPAIdEdx[i];
}
inline G4double G4PAIySection::GetIntegralCerenkov(G4int i) const
{
if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralCerenkov"); }
return fIntegralCerenkov[i];
}
inline G4double G4PAIySection::GetIntegralPlasmon(G4int i) const
{
if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPlasmon"); }
return fIntegralPlasmon[i];
}
#endif
// ----------------- end of G4PAIySection header file -------------------
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