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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/hadronic/cross_sections/src/G4ProtonInelasticCrossSection.cc
+12 -9
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@@ -30,6 +30,7 @@
//
#include "G4ProtonInelasticCrossSection.hh"
#include "G4HadTmpUtil.hh"
#include "globals.hh"
@@ -45,32 +46,34 @@ GetCrossSection(const G4DynamicParticle* aPart,
G4double psig;
G4IsotopeVector* isoVector = anEle->GetIsotopeVector();
G4double* abundVector = anEle->GetRelativeAbundanceVector();
G4double ZZ;
G4double AA;
G4int ZZ;
G4int AA;
for (G4int i = 0; i < nIso; i++) {
ZZ = G4double( (*isoVector)[i]->GetZ() );
AA = G4double( (*isoVector)[i]->GetN() );
ZZ = (*isoVector)[i]->GetZ();
AA = (*isoVector)[i]->GetN();
psig = GetCrossSection(KE, AA, ZZ);
cross_section += psig*abundVector[i];
}
} else {
cross_section = GetCrossSection(KE, anEle->GetN(), anEle->GetZ());
G4int ZZ = G4lrint(anEle->GetZ());
G4int AA = G4lrint(anEle->GetN());
cross_section = GetCrossSection(KE, AA, ZZ);
}
return cross_section;
}
G4double G4ProtonInelasticCrossSection::
GetCrossSection(G4double kineticEnergy, G4double atomicNumber, G4double nOfProtons)
GetCrossSection(G4double kineticEnergy, G4int atomicNumber, G4int nOfProtons)
{
if (kineticEnergy > 19.9*GeV )
{ // constant cross section above ~20GeV.
return GetCrossSection(19.8*GeV,atomicNumber,nOfProtons);
}
G4double nOfNeutrons = atomicNumber-nOfProtons;
G4int nOfNeutrons = atomicNumber-nOfProtons;
kineticEnergy /=GeV;
G4double a = atomicNumber;
const G4double nuleonRadius=1.36E-15;
@@ -79,7 +82,7 @@ GetCrossSection(G4double kineticEnergy, G4double atomicNumber, G4double nOfProto
G4double b0=2.247-0.915*(1-std::pow(a,-0.3333));
G4double fac1=b0*(1-std::pow(a,-0.3333));
G4double fac2=1.;
if(nOfNeutrons>1.5) fac2=std::log((nOfNeutrons));
if(nOfNeutrons > 1) fac2=std::log((G4double(nOfNeutrons)));
G4double crossSection = 1E31*fac*fac2*(1+std::pow(a,0.3333)-fac1);
// high energy correction