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geant4/source/processes/electromagnetic/lowenergy/include/G4Generator2BN.hh
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//
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// * *
// * The Geant4 software is copyright of the Copyright Holders of *
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//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name: G4Generator2BN
//
// Author: Andreia Trindade (andreia@lip.pt)
// Pedro Rodrigues (psilva@lip.pt)
// Luis Peralta (luis@lip.pt)
//
// Creation date: 2 June 2003
//
// Modifications:
// 02 Jun 2003 First implementation acording with new design
// 07 Nov 2003 Lockup tables for fast initialization
//
//
// Class Description:
//
// Concrete class for Bremsstrahlung Angular Distribution Generation - 2BN Distribution
// Further documentation available from http://www.ge.infn.it/geant4/lowE
// -------------------------------------------------------------------
//
#ifndef G4Generator2BN_h
#define G4Generator2BN_h 1
#include "G4ios.hh"
#include "globals.hh"
#include "G4VBremAngularDistribution.hh"
class G4Generator2BN : public G4VBremAngularDistribution
{
public:
G4Generator2BN(const G4String& name);
~G4Generator2BN();
G4double PolarAngle(const G4double initial_energy,
const G4double final_energy,
const G4int Z);
void PrintGeneratorInformation() const;
public:
void SetInterpolationThetaIncrement(G4double increment) {dtheta = increment;};
G4double GetInterpolationThetaIncrement() {return dtheta;};
void SetGammaCutValue(G4double cutValue) {kcut = cutValue;};
G4double GetGammaCutValue() {return kcut;};
void ConstructMajorantSurface();
protected:
G4double CalculateFkt(G4double k, G4double theta, G4double A, G4double c) const;
G4double Calculatedsdkdt(G4double kout, G4double theta, G4double Eel) const;
G4double Generate2BN(G4double Ek, G4double k) const;
private:
G4double b;
G4int index_min, index_max;
G4double kmin, Ekmin;
G4double dtheta;
G4double kcut;
static G4double Atab[320];
static G4double ctab[320];
// hide assignment operator
G4Generator2BN & operator=(const G4Generator2BN &right);
G4Generator2BN(const G4Generator2BN&);
};
#endif