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This commit is contained in:
Gabriele Cosmo
2016-06-09 16:15:05 +02:00
parent b79225fb37
commit 74cad5e589
3877 changed files with 234205 additions and 167127 deletions
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source/processes/electromagnetic/muons/src/G4MuPairProductionModel.cc
+51 -35
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@@ -23,8 +23,8 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4MuPairProductionModel.cc,v 1.39 2008/07/22 16:11:34 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02 $
// $Id: G4MuPairProductionModel.cc,v 1.44 2009/08/11 16:50:07 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// -------------------------------------------------------------------
//
@@ -136,6 +136,23 @@ G4MuPairProductionModel::~G4MuPairProductionModel()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple* )
{
return minPairEnergy;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::MaxSecondaryEnergy(const G4ParticleDefinition*,
G4double kineticEnergy)
{
G4double maxPairEnergy = kineticEnergy + particleMass*(1.0 - 0.75*sqrte*z13);
return maxPairEnergy;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4MuPairProductionModel::Initialise(const G4ParticleDefinition* p,
const G4DataVector&)
{
@@ -143,13 +160,7 @@ void G4MuPairProductionModel::Initialise(const G4ParticleDefinition* p,
if(p) SetParticle(p);
MakeSamplingTables();
}
if(!fParticleChange) {
if(pParticleChange)
fParticleChange =
reinterpret_cast<G4ParticleChangeForLoss*>(pParticleChange);
else
fParticleChange = new G4ParticleChangeForLoss();
}
if(!fParticleChange) fParticleChange = GetParticleChangeForLoss();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -377,9 +388,10 @@ G4double G4MuPairProductionModel::ComputeCrossSectionPerAtom(
if (kineticEnergy <= lowestKinEnergy) return cross;
SetCurrentElement(Z);
G4double tmax = std::min(maxEnergy, kineticEnergy);
G4double cut = std::min(cutEnergy, kineticEnergy);
if(cut < minPairEnergy) cut = minPairEnergy;
G4double maxPairEnergy = MaxSecondaryEnergy(particle,kineticEnergy);
G4double tmax = std::min(maxEnergy, maxPairEnergy);
G4double cut = std::max(cutEnergy, minPairEnergy);
if (cut >= tmax) return cross;
cross = ComputeMicroscopicCrossSection (kineticEnergy, Z, cut);
@@ -445,11 +457,12 @@ void G4MuPairProductionModel::MakeSamplingTables()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4MuPairProductionModel::SampleSecondaries(std::vector<G4DynamicParticle*>* vdp,
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* aDynamicParticle,
G4double tmin,
G4double tmax)
void
G4MuPairProductionModel::SampleSecondaries(std::vector<G4DynamicParticle*>* vdp,
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* aDynamicParticle,
G4double tmin,
G4double tmax)
{
G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
G4double totalEnergy = kineticEnergy + particleMass ;
@@ -599,6 +612,7 @@ const G4Element* G4MuPairProductionModel::SelectRandomAtom(
const G4double* theAtomNumDensityVector=material->GetAtomicNumDensityVector();
G4double sum = 0.0;
G4double dl;
size_t i;
for (i=0; i<nElements; i++) {
@@ -606,27 +620,29 @@ const G4Element* G4MuPairProductionModel::SelectRandomAtom(
SetCurrentElement(Z);
G4double maxPairEnergy = MaxSecondaryEnergy(particle,kinEnergy);
G4double minEnergy = std::max(tmin, minPairEnergy);
dl = 0.0;
if(minEnergy < maxPairEnergy) {
G4int iz;
for(iz=1; iz<nzdat; iz++) {if(Z <= zdat[iz]) break;}
if(iz == nzdat) iz--;
G4double dz = log(Z/zdat[iz-1])/log(zdat[iz]/zdat[iz-1]);
G4int iz;
for(iz=1; iz<nzdat; iz++) {if(Z <= zdat[iz]) break;}
if(iz == nzdat) iz--;
G4double dz = log(Z/zdat[iz-1])/log(zdat[iz]/zdat[iz-1]);
G4double sigcut;
if(minEnergy <= minPairEnergy)
sigcut = 0.;
else
{
G4double xc = log(minEnergy/minPairEnergy)/log(maxPairEnergy/minPairEnergy);
G4int iy = (G4int)((log(xc) - ymin)/dy);
if(iy < 0) iy = 0;
if(iy >= nbiny) iy = nbiny-1;
sigcut = InterpolatedIntegralCrossSection(dt,dz,iz,it,iy, Z);
G4double sigcut;
if(minEnergy <= minPairEnergy)
sigcut = 0.;
else
{
G4double xc = log(minEnergy/minPairEnergy)/log(maxPairEnergy/minPairEnergy);
G4int iy = (G4int)((log(xc) - ymin)/dy);
if(iy < 0) iy = 0;
if(iy >= nbiny) iy = nbiny-1;
sigcut = InterpolatedIntegralCrossSection(dt,dz,iz,it,iy, Z);
}
G4double sigtot = InterpolatedIntegralCrossSection(dt,dz,iz,it,nbiny,Z);
dl = (sigtot - sigcut)*theAtomNumDensityVector[i];
}
G4double sigtot = InterpolatedIntegralCrossSection(dt,dz,iz,it,nbiny,Z);
G4double dl = (sigtot - sigcut)*theAtomNumDensityVector[i];
// protection
if(dl < 0.0) dl = 0.0;
sum += dl;