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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/electromagnetic/standard/src/G4BraggModel.cc
+25 -57
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@@ -23,8 +23,8 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4BraggModel.cc,v 1.23 2009/11/10 19:25:47 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03 $
// $Id: G4BraggModel.cc,v 1.29 2010/11/05 19:27:26 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-04 $
//
// -------------------------------------------------------------------
//
@@ -83,12 +83,16 @@ G4BraggModel::G4BraggModel(const G4ParticleDefinition* p, const G4String& nam)
isIon(false),
isInitialised(false)
{
if(p) SetParticle(p);
SetHighEnergyLimit(2.0*MeV);
lowestKinEnergy = 1.0*keV;
theZieglerFactor = eV*cm2*1.0e-15;
theElectron = G4Electron::Electron();
expStopPower125 = 0.0;
corr = G4LossTableManager::Instance()->EmCorrections();
if(p) { SetParticle(p); }
else { SetParticle(theElectron); }
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -99,9 +103,10 @@ G4BraggModel::~G4BraggModel()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BraggModel::MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple* couple)
const G4MaterialCutsCouple*)
{
return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
return 0.1*keV;
// return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -109,7 +114,7 @@ G4double G4BraggModel::MinEnergyCut(const G4ParticleDefinition*,
void G4BraggModel::Initialise(const G4ParticleDefinition* p,
const G4DataVector&)
{
if(p != particle) SetParticle(p);
if(p != particle) { SetParticle(p); }
// always false before the run
SetDeexcitationFlag(false);
@@ -119,9 +124,7 @@ void G4BraggModel::Initialise(const G4ParticleDefinition* p,
G4String pname = particle->GetParticleName();
if(particle->GetParticleType() == "nucleus" &&
pname != "deuteron" && pname != "triton") isIon = true;
corr = G4LossTableManager::Instance()->EmCorrections();
pname != "deuteron" && pname != "triton") { isIon = true; }
fParticleChange = GetParticleChangeForLoss();
}
@@ -145,7 +148,7 @@ G4double G4BraggModel::GetParticleCharge(const G4ParticleDefinition* p,
const G4Material* mat,
G4double kineticEnergy)
{
// this method is called only for ions
// this method is called only for ions, so no check if it is an ion
return corr->GetParticleCharge(p,mat,kineticEnergy);
}
@@ -160,7 +163,7 @@ G4double G4BraggModel::ComputeCrossSectionPerElectron(
G4double cross = 0.0;
G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
G4double maxEnergy = std::min(tmax,maxKinEnergy);
if(cutEnergy < tmax) {
if(cutEnergy < maxEnergy) {
G4double energy = kineticEnergy + mass;
G4double energy2 = energy*energy;
@@ -214,8 +217,8 @@ G4double G4BraggModel::ComputeDEDXPerVolume(const G4Material* material,
G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
G4double tkin = kineticEnergy/massRate;
G4double dedx = 0.0;
if(tkin > lowestKinEnergy) dedx = DEDX(material, tkin);
else dedx = DEDX(material, lowestKinEnergy)*sqrt(tkin/lowestKinEnergy);
if(tkin > lowestKinEnergy) { dedx = DEDX(material, tkin); }
else { dedx = DEDX(material, lowestKinEnergy)*sqrt(tkin/lowestKinEnergy); }
if (cutEnergy < tmax) {
@@ -238,40 +241,6 @@ G4double G4BraggModel::ComputeDEDXPerVolume(const G4Material* material,
return dedx;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
/*
void G4BraggModel::CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp,
G4double& eloss,
G4double&,
G4double length)
{
if(nuclearStopping) {
G4double preKinEnergy = dp->GetKineticEnergy();
G4double e = preKinEnergy - eloss*0.5;
if(e < 0.0) e = preKinEnergy*0.5;
G4double nloss = length*corr->NuclearDEDX(dp->GetDefinition(),
couple->GetMaterial(),
e,false);
// too big energy loss
if(eloss + nloss > preKinEnergy) {
nloss *= (preKinEnergy/(eloss + nloss));
eloss = preKinEnergy;
} else {
eloss += nloss;
}
G4cout << "G4ionIonisation::CorrectionsAlongStep: e= " << preKinEnergy
<< " de= " << eloss << " NIEL= " << nloss
<< " dynQ= " << dp->GetCharge()/eplus << G4endl;
fParticleChange->ProposeNonIonizingEnergyDeposit(nloss);
}
}
*/
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4BraggModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
@@ -282,7 +251,7 @@ void G4BraggModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
{
G4double tmax = MaxSecondaryKinEnergy(dp);
G4double xmax = std::min(tmax, maxEnergy);
if(xmin >= xmax) return;
if(xmin >= xmax) { return; }
G4double kineticEnergy = dp->GetKineticEnergy();
G4double energy = kineticEnergy + mass;
@@ -342,7 +311,7 @@ void G4BraggModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
G4double G4BraggModel::MaxSecondaryEnergy(const G4ParticleDefinition* pd,
G4double kinEnergy)
{
if(pd != particle) SetParticle(pd);
if(pd != particle) { SetParticle(pd); }
G4double tau = kinEnergy/mass;
G4double tmax = 2.0*electron_mass_c2*tau*(tau + 2.) /
(1. + 2.0*(tau + 1.)*ratio + ratio*ratio);
@@ -586,15 +555,14 @@ G4double G4BraggModel::ElectronicStoppingPower(G4double z,
G4double shigh = log( 1.0 + a[i][3]/T + a[i][4]*T ) * a[i][2]/T ;
ionloss = slow*shigh*fac / (slow + shigh) ;
if ( ionloss < 0.0) ionloss = 0.0 ;
if ( ionloss < 0.0) { ionloss = 0.0; }
return ionloss;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BraggModel::DEDX(const G4Material* material,
G4double kineticEnergy)
G4double G4BraggModel::DEDX(const G4Material* material, G4double kineticEnergy)
{
G4double eloss = 0.0;
const G4int numberOfElements = material->GetNumberOfElements();
@@ -604,7 +572,7 @@ G4double G4BraggModel::DEDX(const G4Material* material,
// compaund material with parametrisation
G4int iNist = pstar.GetIndex(material);
if( iNist >= 0 ) {
if( iNist >= 0 && kineticEnergy <= 2.01*MeV) {
return pstar.GetElectronicDEDX(iNist, kineticEnergy)*material->GetDensity();
} else if( HasMaterial(material) ) {
@@ -612,7 +580,7 @@ G4double G4BraggModel::DEDX(const G4Material* material,
eloss = StoppingPower(material, kineticEnergy)*
material->GetDensity()/amu;
// pure material
// Pure material ICRU49 paralmeterisation
} else if(1 == numberOfElements) {
G4double z = material->GetZ();
@@ -623,12 +591,12 @@ G4double G4BraggModel::DEDX(const G4Material* material,
// Experimental data exist only for kinetic energy 125 keV
} else if( MolecIsInZiegler1988(material) ) {
// Cycle over elements - calculation based on Bragg's rule
// Loop over elements - calculation based on Bragg's rule
G4double eloss125 = 0.0 ;
const G4ElementVector* theElementVector =
material->GetElementVector();
// loop for the elements in the material
// Loop for the elements in the material
for (G4int i=0; i<numberOfElements; i++) {
const G4Element* element = (*theElementVector)[i] ;
G4double z = element->GetZ() ;
@@ -667,7 +635,7 @@ G4bool G4BraggModel::MolecIsInZiegler1988(const G4Material* material)
G4String myFormula = G4String(" ") ;
const G4String chFormula = material->GetChemicalFormula() ;
if (myFormula == chFormula ) return false ;
if (myFormula == chFormula ) { return false; }
// There are no evidence for difference of stopping power depended on
// phase of the compound except for water. The stopping power of the