Gabriele Cosmo
343 lines
13 KiB
C++
343 lines
13 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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// $Id$
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//
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//
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// G4PAIxSection.hh -- header file
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//
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// GEANT 4 class header file --- Copyright CERN 1995
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// CERB Geneva Switzerland
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//
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// for information related to this code, please, contact
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// CERN, CN Division, ASD Group
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//
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// Preparation of ionizing collision cross section according to Photo Absorption
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// Ionization (PAI) model for simulation of ionization energy losses in very thin
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// absorbers. Author: Vladimir.Grichine@cern.ch
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//
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// History:
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//
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// 28.10.11, V. Ivanchenko: Migration of exceptions to the new design
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// 19.10.03, V. Grichine: Integral dEdx was added for G4PAIModel class
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// 13.05.03, V. Grichine: Numerical instability was fixed in SumOverInterval/Border
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// functions
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// 10.02.02, V. Grichine: New functions and arrays/gets for Cerenkov and
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// plasmon collisions dN/dx
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// 27.10.99, V. Grichine: Bug fixed in constructors, 3rd constructor and
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// GetStepEnergyLoss(step) were added, fDelta = 0.005
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// 30.11.97, V. Grichine: 2nd version
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// 11.06.97, V. Grichine: 1st version
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#ifndef G4PAIXSECTION_HH
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#define G4PAIXSECTION_HH
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#include "G4ios.hh"
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#include "globals.hh"
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#include "Randomize.hh"
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#include"G4SandiaTable.hh"
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class G4MaterialCutsCouple;
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class G4Sandiatable;
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class G4PAIxSection
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{
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public:
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// Constructors
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G4PAIxSection( G4MaterialCutsCouple* matCC);
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G4PAIxSection( G4int materialIndex,
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G4double maxEnergyTransfer );
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G4PAIxSection( G4int materialIndex, // for proton loss table
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G4double maxEnergyTransfer,
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G4double betaGammaSq ,
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G4double** photoAbsCof, G4int intNumber );
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G4PAIxSection( G4int materialIndex, // test constructor
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G4double maxEnergyTransfer,
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G4double betaGammaSq );
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// G4PAIxSection(const G4PAIxSection& right);
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// Destructor
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~G4PAIxSection();
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// Operators
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// G4PAIxSection& operator=(const G4PAIxSection& right);
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// G4int operator==(const G4PAIxSection& right)const;
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// G4int operator!=(const G4PAIxSection& right)const;
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// Methods
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// General control functions
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void InitPAI();
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void NormShift( G4double betaGammaSq );
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void SplainPAI( G4double betaGammaSq );
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// Physical methods
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G4double RutherfordIntegral( G4int intervalNumber,
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G4double limitLow,
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G4double limitHigh );
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G4double ImPartDielectricConst( G4int intervalNumber,
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G4double energy );
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G4double GetPhotonRange( G4double energy );
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G4double GetElectronRange( G4double energy );
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G4double RePartDielectricConst(G4double energy);
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G4double DifPAIxSection( G4int intervalNumber,
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G4double betaGammaSq );
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G4double PAIdNdxCerenkov( G4int intervalNumber,
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G4double betaGammaSq );
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G4double PAIdNdxMM( G4int intervalNumber,
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G4double betaGammaSq );
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G4double PAIdNdxPlasmon( G4int intervalNumber,
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G4double betaGammaSq );
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G4double PAIdNdxResonance( G4int intervalNumber,
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G4double betaGammaSq );
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void IntegralPAIxSection();
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void IntegralCerenkov();
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void IntegralMM();
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void IntegralPlasmon();
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void IntegralResonance();
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G4double SumOverInterval(G4int intervalNumber);
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G4double SumOverIntervaldEdx(G4int intervalNumber);
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G4double SumOverInterCerenkov(G4int intervalNumber);
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G4double SumOverInterMM(G4int intervalNumber);
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G4double SumOverInterPlasmon(G4int intervalNumber);
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G4double SumOverInterResonance(G4int intervalNumber);
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G4double SumOverBorder( G4int intervalNumber,
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G4double energy );
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G4double SumOverBorderdEdx( G4int intervalNumber,
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G4double energy );
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G4double SumOverBordCerenkov( G4int intervalNumber,
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G4double energy );
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G4double SumOverBordMM( G4int intervalNumber,
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G4double energy );
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G4double SumOverBordPlasmon( G4int intervalNumber,
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G4double energy );
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G4double SumOverBordResonance( G4int intervalNumber,
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G4double energy );
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G4double GetStepEnergyLoss( G4double step );
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G4double GetStepCerenkovLoss( G4double step );
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G4double GetStepMMLoss( G4double step );
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G4double GetStepPlasmonLoss( G4double step );
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G4double GetStepResonanceLoss( G4double step );
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G4double GetEnergyTransfer();
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G4double GetCerenkovEnergyTransfer();
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G4double GetMMEnergyTransfer();
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G4double GetPlasmonEnergyTransfer();
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G4double GetResonanceEnergyTransfer();
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G4double GetRutherfordEnergyTransfer();
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// Inline access functions
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G4int GetNumberOfGammas() const { return fNumberOfGammas; }
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G4int GetSplineSize() const { return fSplineNumber; }
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G4int GetIntervalNumber() const { return fIntervalNumber; }
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G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i]; }
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G4double GetDifPAIxSection(G4int i){ return fDifPAIxSection[i]; }
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G4double GetPAIdNdxCerenkov(G4int i){ return fdNdxCerenkov[i]; }
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G4double GetPAIdNdxMM(G4int i){ return fdNdxMM[i]; }
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G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i]; }
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G4double GetPAIdNdxResonance(G4int i){ return fdNdxResonance[i]; }
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G4double GetMeanEnergyLoss() const {return fIntegralPAIxSection[0]; }
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G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0]; }
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G4double GetMeanMMLoss() const {return fIntegralMM[0]; }
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G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0]; }
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G4double GetMeanResonanceLoss() const {return fIntegralResonance[0]; }
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G4double GetNormalizationCof() const { return fNormalizationCof; }
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inline G4double GetPAItable(G4int i,G4int j) const;
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inline G4double GetLorentzFactor(G4int i) const;
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inline G4double GetSplineEnergy(G4int i) const;
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inline G4double GetIntegralPAIxSection(G4int i) const;
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inline G4double GetIntegralPAIdEdx(G4int i) const;
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inline G4double GetIntegralCerenkov(G4int i) const;
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inline G4double GetIntegralMM(G4int i) const;
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inline G4double GetIntegralPlasmon(G4int i) const;
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inline G4double GetIntegralResonance(G4int i) const;
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private :
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void CallError(G4int i, const G4String& methodName) const;
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G4PAIxSection & operator=(const G4PAIxSection &right);
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G4PAIxSection(const G4PAIxSection&);
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// Local class constants
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static const G4double fDelta; // energy shift from interval border = 0.001
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static const G4double fError; // error in lin-log approximation = 0.005
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static G4int fNumberOfGammas; // = 111;
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static const G4double fLorentzFactor[112]; // static gamma array
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static
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const G4int fRefGammaNumber ; // The number of gamma for creation of spline (15)
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G4int fIntervalNumber ; // The number of energy intervals
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G4double fNormalizationCof; // Normalization cof for PhotoAbsorptionXsection
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// G4double fBetaGammaSq; // (beta*gamma)^2
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G4int fMaterialIndex; // current material index
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G4double fDensity; // Current density
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G4double fElectronDensity; // Current electron (number) density
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G4int fSplineNumber; // Current size of spline
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// Arrays of Sandia coefficients
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G4OrderedTable* fMatSandiaMatrix;
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G4SandiaTable* fSandia;
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G4double* fEnergyInterval;
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G4double* fA1;
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G4double* fA2;
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G4double* fA3;
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G4double* fA4;
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static
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const G4int fMaxSplineSize ; // Max size of output splain arrays = 500
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/* ******************
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G4double* fSplineEnergy; // energy points of splain
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G4double* fRePartDielectricConst; // Real part of dielectric const
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G4double* fImPartDielectricConst; // Imaginary part of dielectric const
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G4double* fIntegralTerm; // Integral term in PAI cross section
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G4double* fDifPAIxSection; // Differential PAI cross section
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G4double* fIntegralPAIxSection; // Integral PAI cross section ?
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*/ ///////////////
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G4double fSplineEnergy[500]; // energy points of splain
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G4double fRePartDielectricConst[500]; // Real part of dielectric const
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G4double fImPartDielectricConst[500]; // Imaginary part of dielectric const
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G4double fIntegralTerm[500]; // Integral term in PAI cross section
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G4double fDifPAIxSection[500]; // Differential PAI cross section
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G4double fdNdxCerenkov[500]; // dNdx of Cerenkov collisions
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G4double fdNdxMM[500]; // dNdx of MM-Cerenkov collisions
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G4double fdNdxPlasmon[500]; // dNdx of Plasmon collisions
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G4double fdNdxResonance[500]; // dNdx of resonance collisions
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G4double fIntegralPAIxSection[500]; // Integral PAI cross section ?
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G4double fIntegralPAIdEdx[500]; // Integral PAI dEdx ?
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G4double fIntegralCerenkov[500]; // Integral Cerenkov N>omega ?
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G4double fIntegralMM[500]; // Integral MM-Cerenkov N>omega ?
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G4double fIntegralPlasmon[500]; // Integral Plasmon N>omega ?
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G4double fIntegralResonance[500]; // Integral resonance N>omega ?
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G4double fPAItable[500][112]; // Output array
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};
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//////////////// Inline methods //////////////////////////////////
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//
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inline G4double G4PAIxSection::GetPAItable(G4int i, G4int j) const
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{
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return fPAItable[i][j];
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}
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inline G4double G4PAIxSection::GetLorentzFactor(G4int j) const
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{
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return fLorentzFactor[j];
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}
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inline G4double G4PAIxSection::GetSplineEnergy(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetSplineEnergy"); }
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return fSplineEnergy[i];
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}
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inline G4double G4PAIxSection::GetIntegralPAIxSection(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPAIxSection"); }
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return fIntegralPAIxSection[i];
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}
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inline G4double G4PAIxSection::GetIntegralPAIdEdx(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPAIdEdx"); }
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return fIntegralPAIdEdx[i];
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}
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inline G4double G4PAIxSection::GetIntegralCerenkov(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralCerenkov"); }
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return fIntegralCerenkov[i];
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}
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inline G4double G4PAIxSection::GetIntegralMM(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralMM"); }
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return fIntegralMM[i];
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}
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inline G4double G4PAIxSection::GetIntegralPlasmon(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralPlasmon"); }
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return fIntegralPlasmon[i];
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}
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inline G4double G4PAIxSection::GetIntegralResonance(G4int i) const
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{
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if(i < 1 || i > fSplineNumber) { CallError(i, "GetIntegralResonance"); }
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return fIntegralResonance[i];
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}
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#endif
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// ----------------- end of G4PAIxSection header file -------------------
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