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This commit is contained in:
Gabriele Cosmo
2016-06-09 12:11:21 +02:00
parent 516dbf1a58
commit d93e1e39a9
5384 changed files with 125662 additions and 82444 deletions
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source/processes/electromagnetic/muons/src/G4MuPairProductionModel.cc
+28 -48
View File
@@ -20,8 +20,8 @@
// * statement, and all its terms. *
// ********************************************************************
//
// $Id: G4MuPairProductionModel.cc,v 1.21 2004/12/02 08:20:38 vnivanch Exp $
// GEANT4 tag $Name: geant4-07-00-cand-03 $
// $Id: G4MuPairProductionModel.cc,v 1.25 2005/04/12 18:12:33 vnivanch Exp $
// GEANT4 tag $Name: geant4-07-01 $
//
// -------------------------------------------------------------------
//
@@ -49,6 +49,7 @@
// 28-04-04 For complex materials repeat calculation of max energy for each
// material (V.Ivanchenko)
// 01-11-04 Fix bug in expression inside ComputeDMicroscopicCrossSection (R.Kokoulin)
// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
//
// Class Description:
@@ -69,6 +70,7 @@
#include "G4Element.hh"
#include "G4ElementVector.hh"
#include "G4ProductionCutsTable.hh"
#include "G4ParticleChangeForLoss.hh"
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -88,8 +90,6 @@ G4MuPairProductionModel::G4MuPairProductionModel(const G4ParticleDefinition*,
const G4String& nam)
: G4VEmModel(nam),
minPairEnergy(4.*electron_mass_c2),
highKinEnergy(1000000.*TeV),
lowKinEnergy(minPairEnergy),
lowestKinEnergy(1.*GeV),
factorForCross(4.*fine_structure_const*fine_structure_const
*classic_electr_radius*classic_electr_radius/(3.*pi)),
@@ -105,7 +105,9 @@ G4MuPairProductionModel::G4MuPairProductionModel(const G4ParticleDefinition*,
ymax(0.),
dy((ymax-ymin)/nbiny),
samplingTablesAreFilled(false)
{}
{
SetLowEnergyLimit(minPairEnergy);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -114,20 +116,6 @@ G4MuPairProductionModel::~G4MuPairProductionModel()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::HighEnergyLimit(const G4ParticleDefinition*)
{
return highKinEnergy;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::LowEnergyLimit(const G4ParticleDefinition*)
{
return lowKinEnergy;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple* )
{
@@ -136,22 +124,24 @@ G4double G4MuPairProductionModel::MinEnergyCut(const G4ParticleDefinition*,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4bool G4MuPairProductionModel::IsInCharge(const G4ParticleDefinition* p)
{
return (p == G4MuonMinus::MuonMinus() || p == G4MuonPlus::MuonPlus());
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4MuPairProductionModel::Initialise(const G4ParticleDefinition*,
const G4DataVector&)
{
if (!samplingTablesAreFilled) MakeSamplingTables();
theElectron = G4Electron::Electron();
thePositron = G4Positron::Positron();
if(pParticleChange)
fParticleChange = reinterpret_cast<G4ParticleChangeForLoss*>(pParticleChange);
else
fParticleChange = new G4ParticleChangeForLoss();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::ComputeDEDX(const G4MaterialCutsCouple* couple,
G4double G4MuPairProductionModel::ComputeDEDXPerVolume(
const G4Material* material,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy)
@@ -159,7 +149,6 @@ G4double G4MuPairProductionModel::ComputeDEDX(const G4MaterialCutsCouple* couple
G4double dedx = 0.0;
if (cutEnergy <= minPairEnergy || kineticEnergy <= lowestKinEnergy) return dedx;
const G4Material* material = couple->GetMaterial();
const G4ElementVector* theElementVector = material->GetElementVector();
const G4double* theAtomicNumDensityVector =
material->GetAtomicNumDensityVector();
@@ -169,8 +158,7 @@ G4double G4MuPairProductionModel::ComputeDEDX(const G4MaterialCutsCouple* couple
G4double Z = (*theElementVector)[i]->GetZ();
SetCurrentElement(Z);
G4double tmax = MaxSecondaryEnergy(particle, kineticEnergy);
G4double cut = min(cutEnergy,tmax);
G4double loss = ComputMuPairLoss(Z, kineticEnergy, cut, tmax);
G4double loss = ComputMuPairLoss(Z, kineticEnergy, cutEnergy, tmax);
dedx += loss*theAtomicNumDensityVector[i];
}
if (dedx < 0.) dedx = 0.;
@@ -186,8 +174,8 @@ G4double G4MuPairProductionModel::ComputMuPairLoss(G4double Z,
SetCurrentElement(Z);
G4double loss = 0.0;
G4double cut = cutEnergy;
if(tmax <= cutEnergy || cut <= minPairEnergy) return loss;
G4double cut = min(cutEnergy,tmax);
if(cut <= minPairEnergy) return loss;
// calculate the rectricted loss
// numerical integration in log(PairEnergy)
@@ -365,7 +353,8 @@ G4double G4MuPairProductionModel::ComputeDMicroscopicCrossSection(
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4MuPairProductionModel::CrossSection(const G4MaterialCutsCouple* couple,
G4double G4MuPairProductionModel::CrossSectionPerVolume(
const G4Material* material,
const G4ParticleDefinition*,
G4double kineticEnergy,
G4double cutEnergy,
@@ -376,9 +365,8 @@ G4double G4MuPairProductionModel::CrossSection(const G4MaterialCutsCouple* coupl
maxEnergy += particleMass;
const G4Material* material = couple->GetMaterial();
const G4ElementVector* theElementVector = material->GetElementVector();
const G4double* theAtomNumDensityVector=material->GetAtomicNumDensityVector();
const G4double* theAtomNumDensityVector = material->GetAtomicNumDensityVector();
for (size_t i=0; i<material->GetNumberOfElements(); i++) {
G4double Z = (*theElementVector)[i]->GetZ();
@@ -444,17 +432,6 @@ void G4MuPairProductionModel::MakeSamplingTables()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4DynamicParticle* G4MuPairProductionModel::SampleSecondary(
const G4MaterialCutsCouple*,
const G4DynamicParticle*,
G4double,
G4double)
{
return 0;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
vector<G4DynamicParticle*>* G4MuPairProductionModel::SampleSecondaries(
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* aDynamicParticle,
@@ -543,7 +520,7 @@ vector<G4DynamicParticle*>* G4MuPairProductionModel::SampleSecondaries(
ElectDirection.rotateUz(ParticleDirection);
// create G4DynamicParticle object for the particle1
G4DynamicParticle* aParticle1= new G4DynamicParticle(G4Electron::Electron(),
G4DynamicParticle* aParticle1= new G4DynamicParticle(theElectron,
ElectDirection,
ElectKineEnergy);
@@ -553,10 +530,13 @@ vector<G4DynamicParticle*>* G4MuPairProductionModel::SampleSecondaries(
PositDirection.rotateUz(ParticleDirection);
// create G4DynamicParticle object for the particle2
G4DynamicParticle* aParticle2= new G4DynamicParticle(G4Positron::Positron(),
G4DynamicParticle* aParticle2= new G4DynamicParticle(thePositron,
PositDirection,
PositKineEnergy);
// primary change
kineticEnergy -= (ElectKineEnergy + PositKineEnergy + 2.0*electron_mass_c2);
fParticleChange->SetProposedKineticEnergy(kineticEnergy);
vector<G4DynamicParticle*>* vdp = new vector<G4DynamicParticle*>;
vdp->push_back(aParticle1);