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geant4/source/processes/electromagnetic/standard/include/G4PAIySection.hh
T
Gabriele Cosmo 96c8bcd0af Import Geant4 9.1.0 source tree
2016-06-09 15:37:50 +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. *
// ********************************************************************
//
//
// $Id: G4PAIySection.hh,v 1.1 2007/10/01 17:45:14 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
// 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
#ifndef G4PAIYSECTION_HH
#define G4PAIYSECTION_HH
#include "G4ios.hh"
#include "globals.hh"
#include "Randomize.hh"
#include "G4SandiaTable.hh"
class G4PAIySection
{
public:
G4PAIySection();
~G4PAIySection();
void Initialize(const G4Material* material,
G4double maxEnergyTransfer,
G4double betaGammaSq);
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 ) ;
// Inline access functions
G4int GetNumberOfGammas() const { return fNumberOfGammas ; }
G4int GetSplineSize() const { return fSplineNumber ; }
G4int GetIntervalNumber() const { return fIntervalNumber ; }
G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i] ; }
G4double GetDifPAIySection(G4int i){ return fDifPAIySection[i] ; }
G4double GetPAIdNdxCrenkov(G4int i){ return fdNdxCerenkov[i] ; }
G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i] ; }
G4double GetMeanEnergyLoss() const {return fIntegralPAIySection[0] ; }
G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0] ; }
G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0] ; }
G4double GetNormalizationCof() const { return fNormalizationCof ; }
inline G4double GetPAItable(G4int i,G4int j) const ;
inline G4double GetLorentzFactor(G4int i) 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 ;
private :
// 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 fDensity ; // Current density
G4double fElectronDensity ; // Current electron (number) density
G4int fSplineNumber ; // Current size of spline
G4SandiaTable* fSandia;
G4double fEnergyInterval[500] ;
G4double fA1[500] ;
G4double fA2[500] ;
G4double fA3[500] ;
G4double fA4[500] ;
static
const G4int fMaxSplineSize ; // Max size of output splain arrays = 500
G4double fSplineEnergy[500] ; // energy points of splain
G4double fRePartDielectricConst[500] ; // Real part of dielectric const
G4double fImPartDielectricConst[500] ; // Imaginary part of dielectric const
G4double fIntegralTerm[500] ; // Integral term in PAI cross section
G4double fDifPAIySection[500] ; // Differential PAI cross section
G4double fdNdxCerenkov[500] ; // dNdx of Cerenkov collisions
G4double fdNdxPlasmon[500] ; // dNdx of Plasmon collisions
G4double fIntegralPAIySection[500] ; // Integral PAI cross section ?
G4double fIntegralPAIdEdx[500] ; // Integral PAI dEdx ?
G4double fIntegralCerenkov[500] ; // Integral Cerenkov N>omega ?
G4double fIntegralPlasmon[500] ; // Integral Plasmon N>omega ?
G4double fPAItable[500][112] ; // Output array
} ;
//////////////// Inline methods //////////////////////////////////
//
inline G4double G4PAIySection::GetPAItable(G4int i, G4int j) const
{
return fPAItable[i][j] ;
}
inline G4double G4PAIySection::GetLorentzFactor(G4int j) const
{
return fLorentzFactor[j] ;
}
inline G4double G4PAIySection::GetSplineEnergy(G4int i) const
{
if(i < 1 || i > fSplineNumber)
{
G4Exception("Invalid argument in G4PAIySection::GetSplineEnergy");
}
return fSplineEnergy[i] ;
}
inline G4double G4PAIySection::GetIntegralPAIySection(G4int i) const
{
if(i < 1 || i > fSplineNumber)
{
G4Exception("Invalid argument in G4PAIySection::GetIntegralPAIySection");
}
return fIntegralPAIySection[i] ;
}
inline G4double G4PAIySection::GetIntegralPAIdEdx(G4int i) const
{
if(i < 1 || i > fSplineNumber)
{
G4Exception("Invalid argument in G4PAIySection::GetIntegralPAIySection");
}
return fIntegralPAIdEdx[i] ;
}
inline G4double G4PAIySection::GetIntegralCerenkov(G4int i) const
{
if(i < 1 || i > fSplineNumber)
{
G4Exception("Invalid argument in G4PAIySection::GetIntegralCerenkov");
}
return fIntegralCerenkov[i] ;
}
inline G4double G4PAIySection::GetIntegralPlasmon(G4int i) const
{
if(i < 1 || i > fSplineNumber)
{
G4Exception("Invalid argument in G4PAIySection::GetIntegralPlasmon");
}
return fIntegralPlasmon[i] ;
}
#endif
// ----------------- end of G4PAIySection header file -------------------
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