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This commit is contained in:
Gabriele Cosmo
2016-06-09 15:37:50 +02:00
parent a8e9364cea
commit 96c8bcd0af
6923 changed files with 198390 additions and 41849 deletions
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source/processes/electromagnetic/polarisation/src/G4PolarizedComptonCrossSection.cc
+36 -5
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@@ -23,13 +23,13 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4PolarizedComptonCrossSection.cc,v 1.3 2006/11/09 18:00:49 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-00 $
// $Id: G4PolarizedComptonCrossSection.cc,v 1.4 2007/11/01 17:32:34 schaelic Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
// GEANT4 Class file
//
//
// File name: PolarizedComptonCrossSectionPS
// File name: G4PolarizedComptonCrossSection
//
// Author: Andreas Schaelicke
//
@@ -50,9 +50,11 @@
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4PolarizedComptonCrossSection::G4PolarizedComptonCrossSection()
{
SetYmin(0.);
// G4cout<<"G4PolarizedComptonCrossSection() init\n";
re2 = classic_electr_radius * classic_electr_radius;
re2 = classic_electr_radius * classic_electr_radius * sqr(4*pi/hbarc);
// G4double unit_conversion = hbarc_squared ;
// G4cout<<" (keV)^2* m^2 ="<<unit_conversion<<"\n";
phi0 = 0.; polXS = 0.; unpXS = 0.;
@@ -71,7 +73,7 @@ G4PolarizedComptonCrossSection::~G4PolarizedComptonCrossSection()
void G4PolarizedComptonCrossSection::Initialize(G4double eps, G4double X, G4double , // phi
const G4StokesVector & pol0,
const G4StokesVector & pol1,
int flag)
G4int flag)
{
G4double cosT = 1. - (1./eps - 1.)/X;
if(cosT > 1.+1.e-8) cosT = 1.;
@@ -179,6 +181,35 @@ G4double G4PolarizedComptonCrossSection::XSection(const G4StokesVector & pol2,co
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4PolarizedComptonCrossSection::TotalXSection(G4double /*xmin*/, G4double /*xmax*/, G4double k0,
const G4StokesVector & pol0,
const G4StokesVector & pol1)
{
// G4double k0 = gammaEnergy / electron_mass_c2 ;
G4double k1 = 1 + 2*k0 ;
// // pi*re^2
// G4double re=2.81794e-15; //m
// G4double barn=1.e-28; //m^2
G4double Z=theZ;
G4double unit = Z*pi*classic_electr_radius
* classic_electr_radius ; // *1./barn;
G4double pre = unit/(sqr(k0)*sqr(1.+2.*k0));
G4double xs_0 = ((k0 - 2.)*k0 -2.)*sqr(k1)*std::log(k1) + 2.*k0*(k0*(k0 + 1.)*(k0 + 8.) + 2.);
G4double xs_pol = (k0 + 1.)*sqr(k1)*std::log(k1) - 2.*k0*(5.*sqr(k0) + 4.*k0 + 1.);
return pre*(xs_0/k0 + pol0.p3()*pol1.z()*xs_pol);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4StokesVector G4PolarizedComptonCrossSection::GetPol2()
{
// Note, mean polarization can not contain correlation