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This commit is contained in:
Gabriele Cosmo
2016-06-10 14:11:04 +02:00
parent c9b32a6c0a
commit d4af681f38
4886 changed files with 420149 additions and 1023309 deletions
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source/processes/electromagnetic/standard/src/G4BetheBlochModel.cc
+59 -55
View File
@@ -23,7 +23,7 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4BetheBlochModel.cc 81579 2014-06-03 10:15:54Z gcosmo $
// $Id: G4BetheBlochModel.cc 93362 2015-10-19 13:45:19Z gcosmo $
//
// -------------------------------------------------------------------
//
@@ -75,7 +75,7 @@ using namespace std;
G4BetheBlochModel::G4BetheBlochModel(const G4ParticleDefinition* p,
const G4String& nam)
: G4VEmModel(nam),
particle(0),
particle(nullptr),
tlimit(DBL_MAX),
twoln10(2.0*G4Log(10.0)),
bg2lim(0.0169),
@@ -83,7 +83,7 @@ G4BetheBlochModel::G4BetheBlochModel(const G4ParticleDefinition* p,
isIon(false),
isInitialised(false)
{
fParticleChange = 0;
fParticleChange = nullptr;
theElectron = G4Electron::Electron();
if(p) {
SetGenericIon(p);
@@ -110,8 +110,8 @@ void G4BetheBlochModel::Initialise(const G4ParticleDefinition* p,
SetParticle(p);
//G4cout << "G4BetheBlochModel::Initialise for " << p->GetParticleName()
// << " isIon= " << isIon
// << G4endl;
// << " isIon= " << isIon
// << G4endl;
// always false before the run
SetDeexcitationFlag(false);
@@ -128,8 +128,8 @@ void G4BetheBlochModel::Initialise(const G4ParticleDefinition* p,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BetheBlochModel::GetChargeSquareRatio(const G4ParticleDefinition* p,
const G4Material* mat,
G4double kineticEnergy)
const G4Material* mat,
G4double kineticEnergy)
{
// this method is called only for ions
G4double q2 = corr->EffectiveChargeSquareRatio(p,mat,kineticEnergy);
@@ -140,8 +140,8 @@ G4double G4BetheBlochModel::GetChargeSquareRatio(const G4ParticleDefinition* p,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BetheBlochModel::GetParticleCharge(const G4ParticleDefinition* p,
const G4Material* mat,
G4double kineticEnergy)
const G4Material* mat,
G4double kineticEnergy)
{
//G4cout<<"G4BetheBlochModel::GetParticleCharge e= "<<kineticEnergy <<
// " q= " << corr->GetParticleCharge(p,mat,kineticEnergy) <<G4endl;
@@ -168,7 +168,7 @@ void G4BetheBlochModel::SetupParameters()
if(spin == 0.0 && mass < GeV) {x = 0.736*GeV;}
else if(mass > GeV) {
x /= nist->GetZ13(mass/proton_mass_c2);
// tlimit = 51.2*GeV*A13[iz]*A13[iz];
// tlimit = 51.2*GeV*A13[iz]*A13[iz];
}
formfact = 2.0*electron_mass_c2/(x*x);
tlimit = 2.0/formfact;
@@ -178,7 +178,7 @@ void G4BetheBlochModel::SetupParameters()
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BetheBlochModel::MinEnergyCut(const G4ParticleDefinition*,
const G4MaterialCutsCouple* couple)
const G4MaterialCutsCouple* couple)
{
return couple->GetMaterial()->GetIonisation()->GetMeanExcitationEnergy();
}
@@ -187,9 +187,9 @@ G4double G4BetheBlochModel::MinEnergyCut(const G4ParticleDefinition*,
G4double
G4BetheBlochModel::ComputeCrossSectionPerElectron(const G4ParticleDefinition* p,
G4double kineticEnergy,
G4double cutEnergy,
G4double maxKinEnergy)
G4double kineticEnergy,
G4double cutEnergy,
G4double maxKinEnergy)
{
G4double cross = 0.0;
G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
@@ -204,13 +204,13 @@ G4BetheBlochModel::ComputeCrossSectionPerElectron(const G4ParticleDefinition* p,
- beta2*G4Log(maxEnergy/cutEnergy)/tmax;
// +term for spin=1/2 particle
if( 0.5 == spin ) { cross += 0.5*(maxEnergy - cutEnergy)/energy2; }
if( 0.0 < spin ) { cross += 0.5*(maxEnergy - cutEnergy)/energy2; }
// High order correction different for hadrons and ions
// nevetheless they are applied to reduce high energy transfers
// if(!isIon)
//cross += corr->FiniteSizeCorrectionXS(p,currentMaterial,
// kineticEnergy,cutEnergy);
// kineticEnergy,cutEnergy);
cross *= twopi_mc2_rcl2*chargeSquare/beta2;
}
@@ -226,7 +226,7 @@ G4BetheBlochModel::ComputeCrossSectionPerElectron(const G4ParticleDefinition* p,
G4double G4BetheBlochModel::ComputeCrossSectionPerAtom(
const G4ParticleDefinition* p,
G4double kineticEnergy,
G4double Z, G4double,
G4double Z, G4double,
G4double cutEnergy,
G4double maxEnergy)
{
@@ -238,7 +238,7 @@ G4double G4BetheBlochModel::ComputeCrossSectionPerAtom(
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BetheBlochModel::CrossSectionPerVolume(
const G4Material* material,
const G4Material* material,
const G4ParticleDefinition* p,
G4double kineticEnergy,
G4double cutEnergy,
@@ -253,9 +253,9 @@ G4double G4BetheBlochModel::CrossSectionPerVolume(
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4double G4BetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
const G4ParticleDefinition* p,
G4double kineticEnergy,
G4double cut)
const G4ParticleDefinition* p,
G4double kineticEnergy,
G4double cut)
{
G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
G4double cutEnergy = std::min(cut,tmax);
@@ -273,7 +273,7 @@ G4double G4BetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
G4double dedx = G4Log(2.0*electron_mass_c2*bg2*cutEnergy/eexc2)
- (1.0 + cutEnergy/tmax)*beta2;
if(0.5 == spin) {
if(0.0 < spin) {
G4double del = 0.5*cutEnergy/(kineticEnergy + mass);
dedx += del*del;
}
@@ -298,7 +298,7 @@ G4double G4BetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
if (dedx < 0.0) { dedx = 0.0; }
//G4cout << "E(MeV)= " << kineticEnergy/MeV << " dedx= " << dedx
// << " " << material->GetName() << G4endl;
// << " " << material->GetName() << G4endl;
return dedx;
}
@@ -306,10 +306,10 @@ G4double G4BetheBlochModel::ComputeDEDXPerVolume(const G4Material* material,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4BetheBlochModel::CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp,
G4double& eloss,
G4double&,
G4double length)
const G4DynamicParticle* dp,
G4double& eloss,
G4double&,
G4double length)
{
if(isIon) {
const G4ParticleDefinition* p = dp->GetDefinition();
@@ -327,8 +327,8 @@ void G4BetheBlochModel::CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
else if(elossnew < eloss*0.5) { elossnew = eloss*0.5; }
eloss = elossnew;
//G4cout << "G4BetheBlochModel::CorrectionsAlongStep: e= " << preKinEnergy
// << " qfactor= " << qfactor
// << " highOrder= " << highOrder << " ("
// << " qfactor= " << qfactor
// << " highOrder= " << highOrder << " ("
// << highOrder/eloss << ")" << G4endl;
}
}
@@ -336,10 +336,10 @@ void G4BetheBlochModel::CorrectionsAlongStep(const G4MaterialCutsCouple* couple,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp,
G4double minKinEnergy,
G4double maxEnergy)
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp,
G4double minKinEnergy,
G4double maxEnergy)
{
G4double kineticEnergy = dp->GetKineticEnergy();
G4double tmax = MaxSecondaryEnergy(dp->GetDefinition(),kineticEnergy);
@@ -347,6 +347,9 @@ void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
G4double maxKinEnergy = std::min(maxEnergy,tmax);
if(minKinEnergy >= maxKinEnergy) { return; }
//G4cout << "G4BetheBlochModel::SampleSecondaries Emin= " << minKinEnergy
// << " Emax= " << maxKinEnergy << G4endl;
G4double totEnergy = kineticEnergy + mass;
G4double etot2 = totEnergy*totEnergy;
G4double beta2 = kineticEnergy*(kineticEnergy + 2.0*mass)/etot2;
@@ -354,21 +357,25 @@ void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
G4double deltaKinEnergy, f;
G4double f1 = 0.0;
G4double fmax = 1.0;
if( 0.5 == spin ) { fmax += 0.5*maxKinEnergy*maxKinEnergy/etot2; }
if( 0.0 < spin ) { fmax += 0.5*maxKinEnergy*maxKinEnergy/etot2; }
CLHEP::HepRandomEngine* rndmEngineMod = G4Random::getTheEngine();
G4double rndm[2];
// sampling without nuclear size effect
do {
G4double q = G4UniformRand();
rndmEngineMod->flatArray(2, rndm);
deltaKinEnergy = minKinEnergy*maxKinEnergy
/(minKinEnergy*(1.0 - q) + maxKinEnergy*q);
/(minKinEnergy*(1.0 - rndm[0]) + maxKinEnergy*rndm[0]);
f = 1.0 - beta2*deltaKinEnergy/tmax;
if( 0.5 == spin ) {
if( 0.0 < spin ) {
f1 = 0.5*deltaKinEnergy*deltaKinEnergy/etot2;
f += f1;
}
} while( fmax*G4UniformRand() > f);
// Loop checking, 03-Aug-2015, Vladimir Ivanchenko
} while( fmax*rndm[1] > f);
// projectile formfactor - suppresion of high energy
// delta-electron production at high energy
@@ -378,18 +385,18 @@ void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
G4double x1 = 1.0 + x;
G4double grej = 1.0/(x1*x1);
if( 0.5 == spin ) {
if( 0.0 < spin ) {
G4double x2 = 0.5*electron_mass_c2*deltaKinEnergy/(mass*mass);
grej *= (1.0 + magMoment2*(x2 - f1/f)/(1.0 + x2));
}
if(grej > 1.1) {
G4cout << "### G4BetheBlochModel WARNING: grej= " << grej
<< " " << dp->GetDefinition()->GetParticleName()
<< " Ekin(MeV)= " << kineticEnergy
<< " delEkin(MeV)= " << deltaKinEnergy
<< G4endl;
<< " " << dp->GetDefinition()->GetParticleName()
<< " Ekin(MeV)= " << kineticEnergy
<< " delEkin(MeV)= " << deltaKinEnergy
<< G4endl;
}
if(G4UniformRand() > grej) return;
if(rndmEngineMod->flat() > grej) { return; }
}
G4ThreeVector deltaDirection;
@@ -411,25 +418,22 @@ void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
if(cost > 1.0) { cost = 1.0; }
G4double sint = sqrt((1.0 - cost)*(1.0 + cost));
G4double phi = twopi * G4UniformRand() ;
G4double phi = twopi*rndmEngineMod->flat();
deltaDirection.set(sint*cos(phi),sint*sin(phi), cost) ;
deltaDirection.rotateUz(dp->GetMomentumDirection());
}
/*
G4cout << "### G4BetheBlochModel "
<< dp->GetDefinition()->GetParticleName()
<< " Ekin(MeV)= " << kineticEnergy
<< " delEkin(MeV)= " << deltaKinEnergy
<< " tmin(MeV)= " << minKinEnergy
<< " tmax(MeV)= " << maxKinEnergy
<< dp->GetDefinition()->GetParticleName()
<< " Ekin(MeV)= " << kineticEnergy
<< " delEkin(MeV)= " << deltaKinEnergy
<< " tmin(MeV)= " << minKinEnergy
<< " tmax(MeV)= " << maxKinEnergy
<< " dir= " << dp->GetMomentumDirection()
<< " dirDelta= " << deltaDirection
<< G4endl;
}
<< G4endl;
*/
// create G4DynamicParticle object for delta ray
G4DynamicParticle* delta =
new G4DynamicParticle(theElectron,deltaDirection,deltaKinEnergy);
@@ -448,7 +452,7 @@ void G4BetheBlochModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp,
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
G4double G4BetheBlochModel::MaxSecondaryEnergy(const G4ParticleDefinition* pd,
G4double kinEnergy)
G4double kinEnergy)
{
// here particle type is checked for any method
SetParticle(pd);