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: G4mplIonisationWithDeltaModel.cc 76600 2013-11-13 08:30:02Z gcosmo $
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//
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// -------------------------------------------------------------------
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//
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@@ -61,11 +61,16 @@
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#include "G4ParticleChangeForLoss.hh"
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#include "G4Electron.hh"
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#include "G4DynamicParticle.hh"
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#include "G4ProductionCutsTable.hh"
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#include "G4MaterialCutsCouple.hh"
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#include "G4Log.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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using namespace std;
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std::vector<G4double>* G4mplIonisationWithDeltaModel::dedx0 = 0;
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G4mplIonisationWithDeltaModel::G4mplIonisationWithDeltaModel(G4double mCharge,
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const G4String& nam)
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: G4VEmModel(nam),G4VEmFluctuationModel(nam),
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@@ -76,7 +81,7 @@ G4mplIonisationWithDeltaModel::G4mplIonisationWithDeltaModel(G4double mCharge,
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beta2lim(betalim*betalim),
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bg2lim(beta2lim*(1.0 + beta2lim))
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{
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nmpl = G4int(abs(magCharge) * 2 * fine_structure_const + 0.5);
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nmpl = G4lrint(std::fabs(magCharge) * 2 * fine_structure_const);
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if(nmpl > 6) { nmpl = 6; }
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else if(nmpl < 1) { nmpl = 1; }
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pi_hbarc2_over_mc2 = pi * hbarc * hbarc / electron_mass_c2;
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@@ -93,7 +98,9 @@ G4mplIonisationWithDeltaModel::G4mplIonisationWithDeltaModel(G4double mCharge,
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4mplIonisationWithDeltaModel::~G4mplIonisationWithDeltaModel()
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{}
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{
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if(IsMaster()) { delete dedx0; }
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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@@ -117,6 +124,25 @@ G4mplIonisationWithDeltaModel::Initialise(const G4ParticleDefinition* p,
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{
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if(!monopole) { SetParticle(p); }
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if(!fParticleChange) { fParticleChange = GetParticleChangeForLoss(); }
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if(IsMaster()) {
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if(!dedx0) { dedx0 = new std::vector<G4double>; }
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G4ProductionCutsTable* theCoupleTable=
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G4ProductionCutsTable::GetProductionCutsTable();
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G4int numOfCouples = theCoupleTable->GetTableSize();
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G4int n = dedx0->size();
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if(n < numOfCouples) { dedx0->resize(numOfCouples); }
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// initialise vector
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for(G4int i=0; i<numOfCouples; ++i) {
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const G4Material* material =
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theCoupleTable->GetMaterialCutsCouple(i)->GetMaterial();
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G4double eDensity = material->GetElectronDensity();
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G4double vF = electron_Compton_length*pow(3*pi*pi*eDensity,0.3333333333);
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(*dedx0)[i] = pi_hbarc2_over_mc2*eDensity*nmpl*nmpl*
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(G4Log(2*vF/fine_structure_const) - 0.5)/vF;
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}
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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@@ -130,6 +156,7 @@ G4mplIonisationWithDeltaModel::ComputeDEDXPerVolume(const G4Material* material,
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if(!monopole) { SetParticle(p); }
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G4double tmax = MaxSecondaryEnergy(p,kineticEnergy);
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G4double cutEnergy = std::min(tmax, maxEnergy);
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cutEnergy = std::max(LowEnergyLimit(), cutEnergy);
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G4double tau = kineticEnergy / mass;
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G4double gam = tau + 1.0;
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G4double bg2 = tau * (tau + 2.0);
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@@ -137,7 +164,8 @@ G4mplIonisationWithDeltaModel::ComputeDEDXPerVolume(const G4Material* material,
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G4double beta = sqrt(beta2);
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// low-energy asymptotic formula
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G4double dedx = dedxlim*beta*material->GetDensity();
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//G4double dedx = dedxlim*beta*material->GetDensity();
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G4double dedx = (*dedx0)[CurrentCouple()->GetIndex()]*beta;
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// above asymptotic
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if(beta > betalow) {
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@@ -148,7 +176,8 @@ G4mplIonisationWithDeltaModel::ComputeDEDXPerVolume(const G4Material* material,
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} else {
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G4double dedx1 = dedxlim*betalow*material->GetDensity();
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//G4double dedx1 = dedxlim*betalow*material->GetDensity();
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G4double dedx1 = (*dedx0)[CurrentCouple()->GetIndex()]*betalow;
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G4double dedx2 = ComputeDEDXAhlen(material, bg2lim, cutEnergy);
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// extrapolation between two formula
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@@ -184,7 +213,7 @@ G4mplIonisationWithDeltaModel::ComputeDEDXAhlen(const G4Material* material,
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dedx += 0.5 * k - B[nmpl];
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// density effect correction
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G4double x = log(bg2)/twoln10;
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G4double x = G4Log(bg2)/twoln10;
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dedx -= material->GetIonisation()->DensityCorrection(x);
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// now compute the total ionization loss
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@@ -200,15 +229,16 @@ G4double
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G4mplIonisationWithDeltaModel::ComputeCrossSectionPerElectron(
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const G4ParticleDefinition* p,
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G4double kineticEnergy,
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G4double cutEnergy,
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G4double cut,
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G4double maxKinEnergy)
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{
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if(!monopole) { SetParticle(p); }
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G4double cross = 0.0;
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G4double tmax = MaxSecondaryEnergy(p, kineticEnergy);
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G4double maxEnergy = min(tmax,maxKinEnergy);
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G4double maxEnergy = std::min(tmax,maxKinEnergy);
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G4double cutEnergy = std::max(LowEnergyLimit(), cut);
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if(cutEnergy < maxEnergy) {
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cross = (1.0/cutEnergy - 1.0/maxEnergy)*twopi_mc2_rcl2*chargeSquare;
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cross = (0.5/cutEnergy - 0.5/maxEnergy)*pi_hbarc2_over_mc2 * nmpl * nmpl;
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}
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return cross;
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}
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@@ -290,13 +320,13 @@ G4mplIonisationWithDeltaModel::SampleSecondaries(vector<G4DynamicParticle*>* vdp
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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G4double G4mplIonisationWithDeltaModel::SampleFluctuations(
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const G4Material* material,
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const G4MaterialCutsCouple* couple,
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const G4DynamicParticle* dp,
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G4double& tmax,
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G4double& length,
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G4double& meanLoss)
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G4double tmax,
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G4double length,
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G4double meanLoss)
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{
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G4double siga = Dispersion(material,dp,tmax,length);
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G4double siga = Dispersion(couple->GetMaterial(),dp,tmax,length);
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G4double loss = meanLoss;
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siga = sqrt(siga);
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G4double twomeanLoss = meanLoss + meanLoss;
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@@ -320,8 +350,8 @@ G4double G4mplIonisationWithDeltaModel::SampleFluctuations(
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G4double
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G4mplIonisationWithDeltaModel::Dispersion(const G4Material* material,
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const G4DynamicParticle* dp,
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G4double& tmax,
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G4double& length)
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G4double tmax,
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G4double length)
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{
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G4double siga = 0.0;
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G4double tau = dp->GetKineticEnergy()/mass;
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