G4DNABornAngle Class Reference

#include <G4DNABornAngle.hh>

Inheritance diagram for G4DNABornAngle:

Collaboration diagram for G4DNABornAngle:

Public Member Functions
	G4DNABornAngle (const G4String &name="")
virtual	~G4DNABornAngle ()
virtual G4ThreeVector &	SampleDirection (const G4DynamicParticle *dp, G4double kinEnergyFinal, G4int Z, const G4Material *mat=0)
virtual G4ThreeVector &	SampleDirectionForShell (const G4DynamicParticle *dp, G4double kinEnergyFinal, G4int Z, G4int shellIdx, const G4Material *mat=0)
void	PrintGeneratorInformation () const
Public Member Functions inherited from G4VEmAngularDistribution
	G4VEmAngularDistribution (const G4String &name)
virtual	~G4VEmAngularDistribution ()
const G4String &	GetName () const

Additional Inherited Members
Protected Attributes inherited from G4VEmAngularDistribution
G4ThreeVector	fLocalDirection

Detailed Description

Definition at line 57 of file G4DNABornAngle.hh.

Constructor & Destructor Documentation

G4DNABornAngle::G4DNABornAngle

(

const G4String &

name = ""

)

Definition at line 59 of file G4DNABornAngle.cc.

  : G4VEmAngularDistribution("deltaBorn")
{
  fElectron = G4Electron::Electron();
}    

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G4DNABornAngle::~G4DNABornAngle ( )

virtual

Definition at line 65 of file G4DNABornAngle.cc.

{}

Member Function Documentation

void G4DNABornAngle::PrintGeneratorInformation

(

)

const

Definition at line 121 of file G4DNABornAngle.cc.

{} 

G4ThreeVector & G4DNABornAngle::SampleDirection ( const G4DynamicParticle *  dp, G4double  kinEnergyFinal, G4int  Z, const G4Material *  mat = 0  )

virtual

Implements G4VEmAngularDistribution.

Definition at line 114 of file G4DNABornAngle.cc.

{
  return SampleDirectionForShell(dp, secEkin, Z, 0, mat);
}

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G4ThreeVector & G4DNABornAngle::SampleDirectionForShell ( const G4DynamicParticle *  dp, G4double  kinEnergyFinal, G4int  Z, G4int  shellIdx, const G4Material *  mat = 0  )

virtual

Reimplemented from G4VEmAngularDistribution.

Definition at line 69 of file G4DNABornAngle.cc.

{
  G4double k = dp->GetKineticEnergy();
  G4double cosTheta = 1.0;
  if (dp->GetDefinition() == fElectron)
    {
      if (secKinetic < 50.*eV) cosTheta = (2.*G4UniformRand())-1.;
      else if (secKinetic <= 200.*eV)
    {
      if (G4UniformRand() <= 0.1) cosTheta = (2.*G4UniformRand())-1.;
      else cosTheta = G4UniformRand()*(std::sqrt(2.)/2);
    }
      else
    {
      G4double sin2O = 
        (1.-secKinetic/k)/(1.+secKinetic/(2.*electron_mass_c2));
      cosTheta = std::sqrt(1.-sin2O);
    }
    }
  else 
    {
      G4double mass = dp->GetDefinition()->GetPDGMass();
      G4double maxSecKinetic = 4.* (electron_mass_c2 / mass) * k;

      // cosTheta = std::sqrt(secKinetic / maxSecKinetic);

      // Restriction below 100 eV from Emfietzoglou (2000)

      if (secKinetic>100*eV) cosTheta = std::sqrt(secKinetic / maxSecKinetic);
      else cosTheta = (2.*G4UniformRand())-1.;
    }

  G4double sint = sqrt((1.0 - cosTheta)*(1.0 + cosTheta));
  G4double phi  = twopi*G4UniformRand(); 

  fLocalDirection.set(sint*cos(phi), sint*sin(phi), cosTheta);
  fLocalDirection.rotateUz(dp->GetMomentumDirection());

  return fLocalDirection;
}

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

• geant4.10.03.p01/source/processes/electromagnetic/dna/models/include/G4DNABornAngle.hh
• geant4.10.03.p01/source/processes/electromagnetic/dna/models/src/G4DNABornAngle.cc