G4VhElectronicStoppingPower Class Reference

#include <G4VhElectronicStoppingPower.hh>

Inheritance diagram for G4VhElectronicStoppingPower:

G4hICRU49He G4hICRU49p G4hQAOModel G4hSRIM2000p G4hZiegler1977He G4hZiegler1977p G4hZiegler1985p

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

Detailed Description

Definition at line 59 of file G4VhElectronicStoppingPower.hh.


Constructor & Destructor Documentation

G4VhElectronicStoppingPower::G4VhElectronicStoppingPower (  ) 

Definition at line 57 of file G4VhElectronicStoppingPower.cc.

00057                                                         :
00058    theHeMassAMU(4.0026)
00059 {;}

G4VhElectronicStoppingPower::~G4VhElectronicStoppingPower (  )  [virtual]

Definition at line 63 of file G4VhElectronicStoppingPower.cc.

00064 {;}


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().

00085 {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().

00071 {
00072   // The aproximation of He effective charge from: 
00073   // J.F.Ziegler, J.P. Biersack, U. Littmark
00074   // The Stopping and Range of Ions in Matter,
00075   // Vol.1, Pergamon Press, 1985
00076 
00077   static G4double c[6] = {0.2865,  0.1266, -0.001429,
00078                           0.02402,-0.01135, 0.001475} ;
00079 
00080   G4double e = std::log( std::max( 1.0, kineticEnergyHe/(keV*GetHeMassAMU()))) ; 
00081   G4double x = c[0] ;
00082   G4double y = 1.0 ;
00083   for (G4int i=1; i<6; i++) {
00084     y *= e ;
00085     x += y * c[i] ;
00086   }
00087 
00088   G4double w = 7.6 -  e ;
00089   w = 1.0 + (0.007 + 0.00005*z) * std::exp( -w*w ) ;
00090   w = 4.0 * (1.0 - std::exp(-x)) * w * w ;
00091   return w;
00092 }

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

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


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