G4VhElectronicStoppingPower Class Reference

#include <G4VhElectronicStoppingPower.hh>

Inheritance diagram for G4VhElectronicStoppingPower:

Public Member Functions
	G4VhElectronicStoppingPower ()
virtual	~G4VhElectronicStoppingPower ()
virtual G4double	StoppingPower (const G4Material *material, G4double kineticEnergy)=0
virtual G4bool	HasMaterial (const G4Material *material)=0
virtual G4double	ElectronicStoppingPower (G4double z, G4double kineticEnergy) const =0
Protected Member Functions
G4double	HeEffChargeSquare (const G4double z, const G4double kineticEnergyHe) const
G4double	GetHeMassAMU () const

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Detailed Description

Definition at line 59 of file G4VhElectronicStoppingPower.hh.

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Constructor & Destructor Documentation

G4VhElectronicStoppingPower::G4VhElectronicStoppingPower

(

)

Definition at line 57 of file G4VhElectronicStoppingPower.cc.

                                                        :
   theHeMassAMU(4.0026)
{;}

G4VhElectronicStoppingPower::~G4VhElectronicStoppingPower

(

)

[virtual]

Definition at line 63 of file G4VhElectronicStoppingPower.cc.

{;}

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Member Function Documentation

virtual G4double G4VhElectronicStoppingPower::ElectronicStoppingPower	(	G4double	z,
		G4double	kineticEnergy
	)			const [pure virtual]

Implemented in G4hICRU49He, G4hICRU49p, G4hQAOModel, G4hSRIM2000p, G4hZiegler1977He, G4hZiegler1977p, and G4hZiegler1985p.

G4double G4VhElectronicStoppingPower::GetHeMassAMU

(

)

const [inline, protected]

Definition at line 85 of file G4VhElectronicStoppingPower.hh.

Referenced by HeEffChargeSquare().

{return theHeMassAMU;};

virtual G4bool G4VhElectronicStoppingPower::HasMaterial

(

const G4Material *

material

)

[pure virtual]

Implemented in G4hICRU49He, G4hICRU49p, G4hQAOModel, G4hSRIM2000p, G4hZiegler1977He, G4hZiegler1977p, and G4hZiegler1985p.

G4double G4VhElectronicStoppingPower::HeEffChargeSquare	(	const G4double	z,
		const G4double	kineticEnergyHe
	)			const [protected]

Definition at line 68 of file G4VhElectronicStoppingPower.cc.

References GetHeMassAMU().

Referenced by G4hZiegler1977He::ElectronicStoppingPower(), G4hICRU49He::ElectronicStoppingPower(), and G4hICRU49He::StoppingPower().

{
  // The aproximation of He effective charge from: 
  // J.F.Ziegler, J.P. Biersack, U. Littmark
  // The Stopping and Range of Ions in Matter,
  // Vol.1, Pergamon Press, 1985

  static G4double c[6] = {0.2865,  0.1266, -0.001429,
                          0.02402,-0.01135, 0.001475} ;

  G4double e = std::log( std::max( 1.0, kineticEnergyHe/(keV*GetHeMassAMU()))) ; 
  G4double x = c[0] ;
  G4double y = 1.0 ;
  for (G4int i=1; i<6; i++) {
    y *= e ;
    x += y * c[i] ;
  }

  G4double w = 7.6 -  e ;
  w = 1.0 + (0.007 + 0.00005*z) * std::exp( -w*w ) ;
  w = 4.0 * (1.0 - std::exp(-x)) * w * w ;
  return w;
}

virtual G4double G4VhElectronicStoppingPower::StoppingPower	(	const G4Material *	material,
		G4double	kineticEnergy
	)			[pure virtual]

Implemented in G4hICRU49He, G4hICRU49p, G4hQAOModel, G4hSRIM2000p, G4hZiegler1977He, G4hZiegler1977p, and G4hZiegler1985p.

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The documentation for this class was generated from the following files:

• G4VhElectronicStoppingPower.hh
• G4VhElectronicStoppingPower.cc

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