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This commit is contained in:
Gabriele Cosmo
2016-12-09 12:35:28 +01:00
parent 4ec577e5c4
commit a3452e42ac
3514 changed files with 210500 additions and 89628 deletions
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source/processes/electromagnetic/standard/src/G4eSingleCoulombScatteringModel.cc
+50 -43
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@@ -32,17 +32,17 @@
//
// Author: Cristina Consolandi
//
// Creation date: 20.10.2012
//
// Creation date: 20.10.2012
//
// Class Description:
// Single Scattering model for electron-nuclei interaction.
// Suitable for high energy electrons and low scattering angles.
//
//
// Reference:
// M.J. Boschini et al. "Non Ionizing Energy Loss induced by Electrons
// in the Space Environment" Proc. of the 13th International Conference
// on Particle Physics and Advanced Technology
// M.J. Boschini et al. "Non Ionizing Energy Loss induced by Electrons
// in the Space Environment" Proc. of the 13th International Conference
// on Particle Physics and Advanced Technology
//
// (13th ICPPAT, Como 3-7/10/2011), World Scientific (Singapore).
// Available at: http://arxiv.org/abs/1111.4042v4
@@ -66,7 +66,7 @@
#include "G4IonTable.hh"
#include "G4UnitsTable.hh"
#include "G4EmParameters.hh"
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
@@ -87,17 +87,18 @@ G4eSingleCoulombScatteringModel::G4eSingleCoulombScatteringModel(const G4String&
lowEnergyLimit = 0*keV;
recoilThreshold = 0.*eV;
FormFactor = 0;
particle = nullptr;
mass=0;
mass=0.0;
currentMaterialIndex = -1;
Mottcross = new G4ScreeningMottCrossSection();
Mottcross = new G4ScreeningMottCrossSection();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4eSingleCoulombScatteringModel::~G4eSingleCoulombScatteringModel()
{
{
delete Mottcross;
}
@@ -106,22 +107,24 @@ G4eSingleCoulombScatteringModel::~G4eSingleCoulombScatteringModel()
void G4eSingleCoulombScatteringModel::Initialise(const G4ParticleDefinition* p,
const G4DataVector& cuts)
{
G4EmParameters* param = G4EmParameters::Instance();
SetupParticle(p);
currentCouple = nullptr;
currentMaterialIndex = -1;
//cosThetaMin = cos(PolarAngleLimit());
Mottcross->Initialise(p,cosThetaMin);
pCuts = &cuts;
pCuts = &cuts;
//G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3);
/*
G4cout << "!!! G4eSingleCoulombScatteringModel::Initialise for "
<< part->GetParticleName() << " cos(TetMin)= " << cosThetaMin
G4cout << "!!! G4eSingleCoulombScatteringModel::Initialise for "
<< part->GetParticleName() << " cos(TetMin)= " << cosThetaMin
<< " cos(TetMax)= " << cosThetaMax <<G4endl;
G4cout << "cut= " << (*pCuts)[0] << " cut1= " << (*pCuts)[1] << G4endl;
*/
if(!fParticleChange) {
fParticleChange = GetParticleChangeForGamma();
}
@@ -129,6 +132,10 @@ void G4eSingleCoulombScatteringModel::Initialise(const G4ParticleDefinition* p,
if(IsMaster()) {
InitialiseElementSelectors(p,cuts);
}
FormFactor=param->NuclearFormfactorType();
//G4cout<<"NUCLEAR FORM FACTOR: "<<FormFactor<<G4endl;
}
void G4eSingleCoulombScatteringModel::InitialiseLocal(const G4ParticleDefinition*,
@@ -140,22 +147,22 @@ void G4eSingleCoulombScatteringModel::InitialiseLocal(const G4ParticleDefinition
G4double G4eSingleCoulombScatteringModel::ComputeCrossSectionPerAtom(
const G4ParticleDefinition* p,
G4double kinEnergy,
G4double Z,
G4double ,
G4double,
G4double kinEnergy,
G4double Z,
G4double ,
G4double,
G4double )
{
SetupParticle(p);
G4double cross =0.0;
if(kinEnergy < lowEnergyLimit) return cross;
DefineMaterial(CurrentCouple());
//Total Cross section
Mottcross->SetupKinematic(kinEnergy, G4lrint(Z));
cross = Mottcross->NuclearCrossSection();
Mottcross->SetupKinematic(kinEnergy, Z);
cross = Mottcross->NuclearCrossSection(FormFactor);
//cout<< "Compute Cross Section....cross "<<G4BestUnit(cross,"Surface") << " cm2 "<< cross/cm2 <<" Z: "<<Z<<" kinEnergy: "<<kinEnergy<<endl;
return cross;
@@ -167,14 +174,14 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
std::vector<G4DynamicParticle*>* fvect,
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp,
G4double cutEnergy,
G4double cutEnergy,
G4double)
{
G4double kinEnergy = dp->GetKineticEnergy();
//cout<<"--- kinEnergy "<<kinEnergy<<endl;
if(kinEnergy < lowEnergyLimit) return;
DefineMaterial(couple);
SetupParticle(dp->GetDefinition());
@@ -183,14 +190,15 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
currentElement = SelectRandomAtom(couple,particle,
kinEnergy,cutEnergy,kinEnergy);
G4int iz = currentElement->GetZasInt();
G4double Z = currentElement->GetZ();
G4int iz = G4int(Z);
G4int ia = SelectIsotopeNumber(currentElement);
G4double mass2 = G4NucleiProperties::GetNuclearMass(ia, iz);
//G4cout<<"..Z: "<<Z<<" ..iz: "<<iz<<" ..ia: "<<ia<<" ..mass2: "<<mass2<<G4endl;
Mottcross->SetupKinematic(kinEnergy, iz);
G4double cross= Mottcross->NuclearCrossSection(); //MODIFY TO LOAD TABLE
Mottcross->SetupKinematic(kinEnergy, Z);
G4double cross= Mottcross->NuclearCrossSection(FormFactor); //MODIFY TO LOAD TABLE
if(cross == 0.0) { return; }
//cout<< "Energy: "<<kinEnergy/MeV<<" Z: "<<Z<<"....cross "<<G4BestUnit(cross,"Surface") << " cm2 "<< cross/cm2 <<endl;
@@ -207,9 +215,9 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
G4double bet = ptot/(v0.e() + mass2);
G4double gam = 1.0/sqrt((1.0 - bet)*(1.0 + bet));
//CM Projectile
G4double momCM = gam*(ptot - bet*e1);
G4double eCM = gam*(e1 - bet*ptot);
//CM Projectile
G4double momCM = gam*(ptot - bet*e1);
G4double eCM = gam*(e1 - bet*ptot);
//energy & momentum after scattering of incident particle
G4double pxCM = momCM*sint*cos(phi);
G4double pyCM = momCM*sint*sin(phi);
@@ -217,13 +225,13 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
//CM--->Lab
G4LorentzVector v1(pxCM , pyCM, gam*(pzCM + bet*eCM), gam*(eCM + bet*pzCM));
// Rotate to global system
G4ThreeVector dir = dp->GetMomentumDirection();
G4ThreeVector dir = dp->GetMomentumDirection();
G4ThreeVector newDirection = v1.vect().unit();
newDirection.rotateUz(dir);
fParticleChange->ProposeMomentumDirection(newDirection);
fParticleChange->ProposeMomentumDirection(newDirection);
// recoil
v0 -= v1;
@@ -233,9 +241,9 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
G4double tcut = recoilThreshold;
//G4cout<<" Energy Transfered: "<<trec/eV<<G4endl;
if(pCuts) {
tcut= std::max(tcut,(*pCuts)[currentMaterialIndex]);
if(pCuts) {
tcut= std::max(tcut,(*pCuts)[currentMaterialIndex]);
}
if(trec > tcut) {
@@ -248,14 +256,14 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
edep = trec;
fParticleChange->ProposeNonIonizingEnergyDeposit(edep);
}
// finelize primary energy and energy balance
G4double finalT = v1.e() - mass;
//G4cout<<"Final Energy: "<<finalT/eV<<G4endl;
if(finalT <= lowEnergyLimit) {
edep += finalT;
if(finalT <= lowEnergyLimit) {
edep += finalT;
finalT = 0.0;
}
}
edep = std::max(edep, 0.0);
fParticleChange->SetProposedKineticEnergy(finalT);
fParticleChange->ProposeLocalEnergyDeposit(edep);
@@ -263,4 +271,3 @@ void G4eSingleCoulombScatteringModel::SampleSecondaries(
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......