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This commit is contained in:
Gabriele Cosmo
2016-06-09 15:07:44 +02:00
parent fe73f43734
commit 75c7fd177d
764 changed files with 45230 additions and 95238 deletions
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source/processes/hadronic/cross_sections/src/G4ElectroNuclearCrossSection.cc
+43 -7
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@@ -24,8 +24,8 @@
// ********************************************************************
//
//
// $Id: G4ElectroNuclearCrossSection.cc,v 1.25 2006/06/29 19:57:31 gunter Exp $
// GEANT4 tag $Name: geant4-08-02 $
// $Id: G4ElectroNuclearCrossSection.cc,v 1.26 2006/12/28 04:34:12 dennis Exp $
// GEANT4 tag $Name: geant4-08-03 $
//
//
// G4 Physics class: G4ElectroNuclearCrossSection for gamma+A cross sections
@@ -57,9 +57,45 @@ G4int G4ElectroNuclearCrossSection::lastZ=0; // The last Z of calculated n
G4double G4ElectroNuclearCrossSection::lastTH=0.; // Last energy threshold
G4double G4ElectroNuclearCrossSection::lastSig=0.;// Last value of the Cross Section
// The main member function giving the gamma-A cross section (E in GeV, CS in mb)
G4double G4ElectroNuclearCrossSection::GetCrossSection(const G4DynamicParticle* aPart,
const G4Element* anEle, G4double )
// The main member function giving the gamma-A cross section
// (E in GeV, CS in mb)
G4double
G4ElectroNuclearCrossSection::GetCrossSection(const G4DynamicParticle* aPart,
const G4Element* anEle,
G4double temperature)
{
G4int nIso = anEle->GetNumberOfIsotopes();
G4double xsection = 0;
if (nIso) {
G4double sig;
G4IsotopeVector* isoVector = anEle->GetIsotopeVector();
G4double* abundVector = anEle->GetRelativeAbundanceVector();
G4double ZZ;
G4double AA;
for (G4int i = 0; i < nIso; i++) {
ZZ = G4double( (*isoVector)[i]->GetZ() );
AA = G4double( (*isoVector)[i]->GetN() );
sig = GetIsoZACrossSection(aPart, ZZ, AA, temperature);
xsection += sig*abundVector[i];
}
} else {
xsection =
GetIsoZACrossSection(aPart, anEle->GetZ(), anEle->GetN(),
temperature);
}
return xsection;
}
G4double
G4ElectroNuclearCrossSection::GetIsoZACrossSection(const G4DynamicParticle* aPart,
G4double ZZ, G4double AA,
G4double /*temperature*/)
{
static const G4int nE=336; // !! If you change this, change it in GetFunctions() (*.hh) !!
static const G4int mL=nE-1;
@@ -82,8 +118,8 @@ G4double G4ElectroNuclearCrossSection::GetCrossSection(const G4DynamicParticle*
static std::vector <G4double*> J3; // Vector of pointers to the J3 tabulated functions
// *** End of Static Definitions (Associative Memory) ***
const G4double Energy = aPart->GetKineticEnergy()/MeV; // Energy of the electron
const G4int targetAtomicNumber = static_cast<int>(anEle->GetN()+.499); //@@ Nat mixture (?!)
const G4int targZ = static_cast<int>(anEle->GetZ()+.001);
const G4int targetAtomicNumber = static_cast<int>(AA+.499); //@@ Nat mixture (?!)
const G4int targZ = static_cast<int>(ZZ+.001);
const G4int targN = targetAtomicNumber-targZ; // @@ Get isotops (can change initial A)
if (Energy<=EMi) return 0.; // Energy is below the minimum energy in the table
G4int PDG=aPart->GetDefinition()->GetPDGEncoding();