Import Geant4 10.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -23,7 +23,7 @@
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// $Id$
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// $Id: G4eCoulombScatteringModel.cc 76536 2013-11-12 15:17:41Z gcosmo $
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//
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// -------------------------------------------------------------------
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//
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@@ -65,6 +65,7 @@
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#include "G4ParticleChangeForGamma.hh"
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#include "G4Proton.hh"
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#include "G4ParticleTable.hh"
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#include "G4IonTable.hh"
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#include "G4ProductionCutsTable.hh"
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#include "G4NucleiProperties.hh"
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#include "G4Pow.hh"
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@@ -84,9 +85,10 @@ G4eCoulombScatteringModel::G4eCoulombScatteringModel(const G4String& nam)
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{
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fParticleChange = 0;
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fNistManager = G4NistManager::Instance();
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theParticleTable = G4ParticleTable::GetParticleTable();
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theProton = G4Proton::Proton();
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theIonTable = G4ParticleTable::GetParticleTable()->GetIonTable();
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theProton = G4Proton::Proton();
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currentMaterial = 0;
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fixedCut = -1.0;
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pCuts = 0;
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@@ -114,37 +116,74 @@ G4eCoulombScatteringModel::~G4eCoulombScatteringModel()
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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void G4eCoulombScatteringModel::Initialise(const G4ParticleDefinition* p,
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void G4eCoulombScatteringModel::Initialise(const G4ParticleDefinition* part,
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const G4DataVector& cuts)
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{
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SetupParticle(p);
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SetupParticle(part);
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currentCouple = 0;
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cosThetaMin = cos(PolarAngleLimit());
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wokvi->Initialise(p, cosThetaMin);
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/*
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wokvi->Initialise(part, cosThetaMin);
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/*
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G4cout << "G4eCoulombScatteringModel: " << particle->GetParticleName()
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<< " 1-cos(ThetaLimit)= " << 1 - cosThetaMin
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<< " cos(thetaMax)= " << cosThetaMax
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<< G4endl;
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*/
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pCuts = G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3);
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pCuts =
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G4ProductionCutsTable::GetProductionCutsTable()->GetEnergyCutsVector(3);
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/*
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G4cout << "!!! G4eCoulombScatteringModel::Initialise for "
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<< p->GetParticleName() << " cos(TetMin)= " << cosThetaMin
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<< part->GetParticleName() << " cos(TetMin)= " << cosThetaMin
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<< " cos(TetMax)= " << cosThetaMax <<G4endl;
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G4cout << "cut0= " << cuts[0] << " cut1= " << cuts[1] << G4endl;
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G4cout << "cut= " << pCuts[0] << " cut1= " << pCuts[1] << G4endl;
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*/
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if(!isInitialised) {
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isInitialised = true;
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fParticleChange = GetParticleChangeForGamma();
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}
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if(mass < GeV) {
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InitialiseElementSelectors(p,cuts);
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if(IsMaster() && mass < GeV && part->GetParticleName() != "GenericIon") {
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InitialiseElementSelectors(part,cuts);
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4eCoulombScatteringModel::InitialiseLocal(const G4ParticleDefinition*,
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G4VEmModel* masterModel)
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{
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SetElementSelectors(masterModel->GetElementSelectors());
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double
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G4eCoulombScatteringModel::MinPrimaryEnergy(const G4Material* material,
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const G4ParticleDefinition* part,
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G4double)
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{
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SetupParticle(part);
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// define cut using cuts for proton
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G4double cut =
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std::max(recoilThreshold, (*pCuts)[CurrentCouple()->GetIndex()]);
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// find out lightest element
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const G4ElementVector* theElementVector = material->GetElementVector();
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G4int nelm = material->GetNumberOfElements();
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G4int Z = 300;
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for (G4int j=0; j<nelm; ++j) {
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G4int iz = (G4int)(*theElementVector)[j]->GetZ();
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if(iz < Z) { Z = iz; }
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}
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G4int A = G4lrint(fNistManager->GetAtomicMassAmu(Z));
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G4double targetMass = G4NucleiProperties::GetNuclearMass(A, Z);
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G4double t = std::max(cut, 0.5*(cut + sqrt(2*cut*targetMass)));
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return std::max(lowEnergyThreshold, t);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4eCoulombScatteringModel::ComputeCrossSectionPerAtom(
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const G4ParticleDefinition* p,
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G4double kinEnergy,
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@@ -152,7 +191,7 @@ G4double G4eCoulombScatteringModel::ComputeCrossSectionPerAtom(
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G4double cutEnergy, G4double)
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{
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//G4cout << "### G4eCoulombScatteringModel::ComputeCrossSectionPerAtom for "
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// << p->GetParticleName()<<" Z= "<<Z<<" e(MeV)= "<< kinEnergy/MeV << G4endl;
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//<< p->GetParticleName()<<" Z= "<<Z<<" e(MeV)= "<< kinEnergy/MeV << G4endl;
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G4double cross = 0.0;
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if(p != particle) { SetupParticle(p); }
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@@ -162,7 +201,9 @@ G4double G4eCoulombScatteringModel::ComputeCrossSectionPerAtom(
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cosTetMinNuc = wokvi->SetupKinematic(kinEnergy, currentMaterial);
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if(cosThetaMax < cosTetMinNuc) {
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G4int iz = G4int(Z);
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cosTetMinNuc = wokvi->SetupTarget(iz, cutEnergy);
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G4double cut = cutEnergy;
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if(fixedCut > 0.0) { cut = fixedCut; }
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cosTetMinNuc = wokvi->SetupTarget(iz, cut);
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cosTetMaxNuc = cosThetaMax;
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if(iz == 1 && cosTetMaxNuc < 0.0 && particle == theProton) {
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cosTetMaxNuc = 0.0;
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@@ -209,13 +250,16 @@ void G4eCoulombScatteringModel::SampleSecondaries(
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<< " cut= " << cutEnergy<< G4endl;
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*/
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// Choose nucleus
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G4double cut = cutEnergy;
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if(fixedCut > 0.0) { cut = fixedCut; }
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const G4Element* currentElement =
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SelectRandomAtom(couple,particle,kinEnergy,cutEnergy,kinEnergy);
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SelectRandomAtom(couple,particle,kinEnergy,cut,kinEnergy);
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G4double Z = currentElement->GetZ();
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if(ComputeCrossSectionPerAtom(particle,kinEnergy, Z,
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kinEnergy, cutEnergy, kinEnergy) == 0.0)
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kinEnergy, cut, kinEnergy) == 0.0)
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{ return; }
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G4int iz = G4int(Z);
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@@ -235,30 +279,39 @@ void G4eCoulombScatteringModel::SampleSecondaries(
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// recoil sampling assuming a small recoil
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// and first order correction to primary 4-momentum
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G4double mom2 = wokvi->GetMomentumSquare();
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G4double trec = mom2*(1.0 - cost)/(targetMass + (mass + kinEnergy)*(1.0 - cost));
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G4double finalT = kinEnergy - trec;
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//G4cout<<"G4eCoulombScatteringModel: finalT= "<<finalT<<" Trec= "<<trec<<G4endl;
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if(finalT <= lowEnergyThreshold) {
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trec = kinEnergy;
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finalT = 0.0;
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}
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G4double trec = mom2*(1.0 - cost)
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/(targetMass + (mass + kinEnergy)*(1.0 - cost));
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// the check likely not needed
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if(trec > kinEnergy) { trec = kinEnergy; }
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G4double finalT = kinEnergy - trec;
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G4double edep = 0.0;
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//G4cout<<"G4eCoulombScatteringModel: finalT= "<<finalT<<" Trec= "
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// <<trec << " Z= " << iz << " A= " << ia<<G4endl;
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fParticleChange->SetProposedKineticEnergy(finalT);
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G4double tcut = recoilThreshold;
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if(pCuts) { tcut= std::max(tcut,(*pCuts)[currentMaterialIndex]); }
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if(trec > tcut) {
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G4ParticleDefinition* ion = theParticleTable->GetIon(iz, ia, 0.0);
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G4ParticleDefinition* ion = theIonTable->GetIon(iz, ia, 0);
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G4ThreeVector dir = (direction*sqrt(mom2) -
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newDirection*sqrt(finalT*(2*mass + finalT))).unit();
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G4DynamicParticle* newdp = new G4DynamicParticle(ion, dir, trec);
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fvect->push_back(newdp);
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} else {
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fParticleChange->ProposeLocalEnergyDeposit(trec);
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fParticleChange->ProposeNonIonizingEnergyDeposit(trec);
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edep = trec;
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fParticleChange->ProposeNonIonizingEnergyDeposit(edep);
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}
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return;
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// finelize primary energy and energy balance
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// this threshold may be applied only because for low-enegry
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// e+e- msc model is applied
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if(finalT <= lowEnergyThreshold) {
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edep += finalT;
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finalT = 0.0;
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}
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fParticleChange->SetProposedKineticEnergy(finalT);
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fParticleChange->ProposeLocalEnergyDeposit(edep);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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