Gabriele Cosmo
226 lines
6.9 KiB
C++
226 lines
6.9 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. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
// -------------------------------------------------------------------
|
|
//
|
|
// GEANT4 Class header file
|
|
//
|
|
//
|
|
// File name: G4PAIModel
|
|
//
|
|
// Author: V. Grichine based on Vladimir Ivanchenko code
|
|
//
|
|
// Creation date: 05.10.2003
|
|
//
|
|
// Modifications:
|
|
// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
|
|
// 26-09-07 Fixed tmax computation (V.Ivantchenko)
|
|
//
|
|
//
|
|
// Class Description:
|
|
//
|
|
// Implementation of PAI model of energy loss and
|
|
// delta-electron production by heavy charged particles
|
|
|
|
// -------------------------------------------------------------------
|
|
//
|
|
|
|
#ifndef G4PAIModel_h
|
|
#define G4PAIModel_h 1
|
|
|
|
#include <vector>
|
|
#include "G4VEmModel.hh"
|
|
#include "globals.hh"
|
|
#include "G4VEmFluctuationModel.hh"
|
|
#include "G4PAIySection.hh"
|
|
|
|
class G4PhysicsLogVector;
|
|
class G4PhysicsTable;
|
|
class G4Region;
|
|
class G4MaterialCutsCouple;
|
|
class G4ParticleChangeForLoss;
|
|
|
|
class G4PAIModel : public G4VEmModel, public G4VEmFluctuationModel
|
|
{
|
|
|
|
public:
|
|
|
|
G4PAIModel(const G4ParticleDefinition* p = 0, const G4String& nam = "PAI");
|
|
|
|
virtual ~G4PAIModel();
|
|
|
|
virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
|
|
|
|
virtual void InitialiseMe(const G4ParticleDefinition*) {};
|
|
|
|
virtual G4double ComputeDEDX(const G4MaterialCutsCouple*,
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double cutEnergy);
|
|
|
|
virtual G4double CrossSection(const G4MaterialCutsCouple*,
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double cutEnergy,
|
|
G4double maxEnergy);
|
|
|
|
virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
|
|
const G4MaterialCutsCouple*,
|
|
const G4DynamicParticle*,
|
|
G4double tmin,
|
|
G4double maxEnergy);
|
|
|
|
virtual G4double SampleFluctuations(const G4Material*,
|
|
const G4DynamicParticle*,
|
|
G4double&,
|
|
G4double&,
|
|
G4double&);
|
|
|
|
virtual G4double Dispersion( const G4Material*,
|
|
const G4DynamicParticle*,
|
|
G4double&,
|
|
G4double&);
|
|
|
|
void DefineForRegion(const G4Region* r) ;
|
|
void ComputeSandiaPhotoAbsCof();
|
|
void BuildPAIonisationTable();
|
|
void BuildLambdaVector();
|
|
|
|
G4double GetdNdxCut( G4int iPlace, G4double transferCut);
|
|
G4double GetdEdxCut( G4int iPlace, G4double transferCut);
|
|
G4double GetPostStepTransfer( G4double scaledTkin );
|
|
G4double GetEnergyTransfer( G4int iPlace,
|
|
G4double position,
|
|
G4int iTransfer );
|
|
|
|
void SetVerboseLevel(G4int verbose){fVerbose=verbose;};
|
|
|
|
|
|
|
|
protected:
|
|
|
|
G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
|
|
G4double kinEnergy);
|
|
|
|
private:
|
|
|
|
void SetParticle(const G4ParticleDefinition* p);
|
|
|
|
// hide assignment operator
|
|
G4PAIModel & operator=(const G4PAIModel &right);
|
|
G4PAIModel(const G4PAIModel&);
|
|
|
|
// The vector over proton kinetic energies: the range of gammas
|
|
G4int fVerbose;
|
|
G4double fLowestGamma;
|
|
G4double fHighestGamma;
|
|
G4double fLowestKineticEnergy;
|
|
G4double fHighestKineticEnergy;
|
|
G4int fTotBin;
|
|
G4int fMeanNumber;
|
|
G4PhysicsLogVector* fParticleEnergyVector ;
|
|
G4PAIySection fPAIySection;
|
|
|
|
// vectors
|
|
|
|
G4PhysicsTable* fPAItransferTable;
|
|
std::vector<G4PhysicsTable*> fPAIxscBank;
|
|
|
|
G4PhysicsTable* fPAIdEdxTable;
|
|
std::vector<G4PhysicsTable*> fPAIdEdxBank;
|
|
|
|
std::vector<const G4MaterialCutsCouple*> fMaterialCutsCoupleVector;
|
|
std::vector<const G4Region*> fPAIRegionVector;
|
|
|
|
const G4MaterialCutsCouple* fCutCouple;
|
|
const G4Material* fMaterial;
|
|
G4double fDeltaCutInKinEnergy;
|
|
|
|
size_t fMatIndex ;
|
|
G4double** fSandiaPhotoAbsCof ;
|
|
G4int fSandiaIntervalNumber ;
|
|
|
|
G4PhysicsLogVector* fdEdxVector ;
|
|
std::vector<G4PhysicsLogVector*> fdEdxTable ;
|
|
|
|
G4PhysicsLogVector* fLambdaVector ;
|
|
std::vector<G4PhysicsLogVector*> fLambdaTable ;
|
|
|
|
G4PhysicsLogVector* fdNdxCutVector ;
|
|
std::vector<G4PhysicsLogVector*> fdNdxCutTable ;
|
|
|
|
const G4ParticleDefinition* fParticle;
|
|
const G4ParticleDefinition* fElectron;
|
|
const G4ParticleDefinition* fPositron;
|
|
G4ParticleChangeForLoss* fParticleChange;
|
|
|
|
G4double fMass;
|
|
G4double fSpin;
|
|
G4double fChargeSquare;
|
|
G4double fRatio;
|
|
G4double fHighKinEnergy;
|
|
G4double fLowKinEnergy;
|
|
G4double fTwoln10;
|
|
G4double fBg2lim;
|
|
G4double fTaulim;
|
|
G4double fQc;
|
|
|
|
G4bool isInitialised;
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////
|
|
|
|
inline G4double G4PAIModel::MaxSecondaryEnergy( const G4ParticleDefinition* p,
|
|
G4double kinEnergy)
|
|
{
|
|
G4double tmax = kinEnergy;
|
|
if(p == fElectron) tmax *= 0.5;
|
|
else if(p != fPositron) {
|
|
G4double mass = p->GetPDGMass();
|
|
G4double ratio= electron_mass_c2/mass;
|
|
G4double gamma= kinEnergy/mass + 1.0;
|
|
tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
|
|
(1. + 2.0*gamma*ratio + ratio*ratio);
|
|
}
|
|
return tmax;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////
|
|
|
|
inline void G4PAIModel::DefineForRegion(const G4Region* r)
|
|
{
|
|
fPAIRegionVector.push_back(r);
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|