G4S2Light.cc File Reference

#include "G4ParticleTypes.hh"
#include "G4EmProcessSubType.hh"
#include "G4S2Light.hh"
#include "G4S1Light.hh"
#include "G4SystemOfUnits.hh"
#include "G4PhysicalConstants.hh"

Go to the source code of this file.

Macros
#define	E_PURITY   2*CLHEP::m
#define	GRID_DENSITY   8.03*(CLHEP::g/CLHEP::cm3)

Functions
G4double	GetGasElectronDriftSpeed (G4double efieldinput, G4double density)
G4double	GetLiquidElectronDriftSpeed (double T, double F, G4bool M, G4int Z)

Variables
G4double	thr [100]
G4double	E_eV [100]
G4double	tau1 [100]
G4double	tau3 [100]
G4double	MolarMass [100]
G4double	ConvertEff [100]

Macro Definition Documentation

#define E_PURITY   2*CLHEP::m

Definition at line 56 of file G4S2Light.cc.

#define GRID_DENSITY   8.03*(CLHEP::g/CLHEP::cm3)

Definition at line 57 of file G4S2Light.cc.

Function Documentation

G4double GetGasElectronDriftSpeed	(	G4double	efieldinput,
		G4double	density
	)

Definition at line 315 of file G4S2Light.cc.

{
  //Gas equation one coefficients(E/N of 1.2E-19 to 3.5E-19)
  double gas1a=395.50266631436,gas1b=-357384143.004642,gas1c=0.518110447340587;
  //Gas equation two coefficients(E/N of 3.5E-19 to 3.8E-17)
  double gas2a=-592981.611357632,gas2b=-90261.9643716643,
    gas2c=-4911.83213989609,gas2d=-115.157545835228, gas2f=-0.990440443390298,
    gas2g=1008.30998933704,gas2h=223.711221224885;
  
  G4double edrift=0, gasdep=efieldinput/density, gas1fix=0, gas2fix=0;
  
  if ( gasdep < 1.2e-19 && gasdep >= 0 ) edrift = 4e22*gasdep;
  if ( gasdep < 3.5e-19 && gasdep >= 1.2e-19 ) {
    gas1fix = gas1b*pow(gasdep,gas1c); edrift = gas1a*pow(gasdep,gas1fix);
  }
  if ( gasdep < 3.8e-17 && gasdep >= 3.5e-19 ) {
    gas2fix = log(gas2g*gasdep);
    edrift = (gas2a+gas2b*gas2fix+gas2c*pow(gas2fix,2)+gas2d*pow(gas2fix,3)+
              gas2f*pow(gas2fix,4))*(gas2h*exp(gasdep));
  }
  if ( gasdep >= 3.8e-17 ) edrift = 6e21*gasdep-32279;
  
  return 0.5*EMASS*pow(edrift*(CLHEP::cm/CLHEP::s),2.);
}

G4double GetLiquidElectronDriftSpeed	(	double	T,
		double	F,
		G4bool	M,
		G4int	Z
	)

Variable Documentation

G4double ConvertEff[100]

Definition at line 61 of file G4S2Light.cc.

G4double E_eV[100]

Definition at line 60 of file G4S2Light.cc.

G4double MolarMass[100]

Definition at line 61 of file G4S2Light.cc.

G4double tau1[100]

Definition at line 61 of file G4S2Light.cc.

G4double tau3[100]

Definition at line 61 of file G4S2Light.cc.

G4double thr[100]

Definition at line 59 of file G4S2Light.cc.