DNA::Penetration Namespace Reference

Data Structures
struct	Kreipl2009
struct	Meesungnoen2002
struct	Meesungnoen2002_amorphous
struct	Ritchie1994
struct	Terrisol1990

Functions
void	GetGaussianPenetrationFromRmean3D (G4double r_mean, G4ThreeVector &displacement)

Function Documentation

GetGaussianPenetrationFromRmean3D()

void DNA::Penetration::GetGaussianPenetrationFromRmean3D	(	G4double	r_mean,
		G4ThreeVector &	displacement
	)

Definition at line 123 of file G4DNAOneStepThermalizationModel.cc.

{
  if(r_mean == 0)
  {
    // rare events:
    // prevent H2O and secondary electron from being placed at the same position
    displacement = G4RandomDirection() * (1e-3*CLHEP::nanometer);
    return;
  }
  
  static constexpr double convertRmean3DToSigma1D = 0.62665706865775006;
  // = sqrt(CLHEP::pi)/pow(2,3./2.)
    
  // Use r_mean to build a 3D gaussian
  const double sigma1D = r_mean * convertRmean3DToSigma1D;
  displacement = G4ThreeVector(G4RandGauss::shoot(0, sigma1D),
                               G4RandGauss::shoot(0, sigma1D),
                               G4RandGauss::shoot(0, sigma1D));
}

References G4RandomDirection(), CLHEP::nanometer, and G4INCL::DeJongSpin::shoot().

Referenced by DNA::Penetration::Meesungnoen2002::GetPenetration(), DNA::Penetration::Meesungnoen2002_amorphous::GetPenetration(), and DNA::Penetration::Ritchie1994::GetPenetration().