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This commit is contained in:
Gabriele Cosmo
2016-06-09 16:25:56 +02:00
parent 74cad5e589
commit 89a9605df1
4440 changed files with 379508 additions and 189225 deletions
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source/processes/electromagnetic/standard/src/G4PairProductionRelModel.cc
+10 -60
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@@ -23,8 +23,8 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4PairProductionRelModel.cc,v 1.3 2009/05/15 17:12:33 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03 $
// $Id: G4PairProductionRelModel.cc,v 1.4 2010/10/26 09:06:04 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-04 $
//
// -------------------------------------------------------------------
//
@@ -84,8 +84,6 @@ const G4double G4PairProductionRelModel::Finel_light[] = {0., 6.144 , 5.621 , 5.
G4PairProductionRelModel::G4PairProductionRelModel(const G4ParticleDefinition*,
const G4String& nam)
: G4VEmModel(nam),
theCrossSectionTable(0),
nbins(10),
fLPMconstant(fine_structure_const*electron_mass_c2*electron_mass_c2/(4.*pi*hbarc)*0.5),
fLPMflag(true),
lpmEnergy(0.),
@@ -98,72 +96,24 @@ G4PairProductionRelModel::G4PairProductionRelModel(const G4ParticleDefinition*,
nist = G4NistManager::Instance();
currentZ = z13 = z23 = lnZ = Fel = Finel = fCoulomb = phiLPM = gLPM = xiLPM = 0;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4PairProductionRelModel::~G4PairProductionRelModel()
{
if(theCrossSectionTable) {
theCrossSectionTable->clearAndDestroy();
delete theCrossSectionTable;
}
}
{}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
void G4PairProductionRelModel::Initialise(const G4ParticleDefinition*,
const G4DataVector&)
void G4PairProductionRelModel::Initialise(const G4ParticleDefinition* p,
const G4DataVector& cuts)
{
fParticleChange = GetParticleChangeForGamma();
if(theCrossSectionTable) {
theCrossSectionTable->clearAndDestroy();
delete theCrossSectionTable;
}
const G4ElementTable* theElementTable = G4Element::GetElementTable();
size_t nvect = G4Element::GetNumberOfElements();
theCrossSectionTable = new G4PhysicsTable(nvect);
G4PhysicsLogVector* ptrVector;
G4double emin = LowEnergyLimit();
G4double emax = HighEnergyLimit();
G4int n = nbins*G4int(log10(emax/emin));
G4bool spline = G4LossTableManager::Instance()->SplineFlag();
G4double e, value;
for(size_t j=0; j<nvect ; j++) {
ptrVector = new G4PhysicsLogVector(emin, emax, n);
ptrVector->SetSpline(spline);
G4double Z = (*theElementTable)[j]->GetZ();
G4VEmModel::SetCurrentElement((*theElementTable)[j]);
G4int iz = G4int(Z);
indexZ[iz] = j;
for(G4int i=0; i<nbins; i++) {
e = ptrVector->GetLowEdgeEnergy( i ) ;
value = ComputeCrossSectionPerAtom(theGamma, e, Z);
ptrVector->PutValue( i, value );
}
theCrossSectionTable->insert(ptrVector);
}
if(!fParticleChange) { fParticleChange = GetParticleChangeForGamma(); }
InitialiseElementSelectors(p, cuts);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
/*
G4double G4PairProductionRelModel::ComputeRelXSectionPerAtom(G4double k, G4double Z)
{
G4double cross = 0.0;
}
*/
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4double G4PairProductionRelModel::ComputeXSectionPerAtom(G4double totalEnergy, G4double Z)
@@ -339,7 +289,7 @@ G4PairProductionRelModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition*
{
// static const G4double gammaEnergyLimit = 1.5*MeV;
G4double crossSection = 0.0 ;
if ( Z < 1. ) return crossSection;
if ( Z < 0.9 ) return crossSection;
if ( gammaEnergy <= 2.0*electron_mass_c2 ) return crossSection;
SetCurrentElement(Z);