Gabriele Cosmo
134 lines
4.8 KiB
C++
134 lines
4.8 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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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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//
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//---------------------------------------------------------------------------
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//
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// ClassName: G4ElectronCapture
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//
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// Description: The process to kill particles to save CPU
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//
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// Author: V.Ivanchenko 31 August 2010
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//
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//----------------------------------------------------------------------------
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4ElectronCapture.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4Step.hh"
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#include "G4Track.hh"
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#include "G4Region.hh"
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#include "G4RegionStore.hh"
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#include "G4Electron.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ElectronCapture::G4ElectronCapture(const G4String& regName, G4double ekinlim)
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: G4VDiscreteProcess("eCapture", fElectromagnetic), kinEnergyThreshold(ekinlim),
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regionName(regName), region(0)
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{
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if(regName == "" || regName == "world") {
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regionName = "DefaultRegionForTheWorld";
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}
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pParticleChange = &fParticleChange;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ElectronCapture::~G4ElectronCapture()
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4ElectronCapture::SetKinEnergyLimit(G4double val)
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{
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kinEnergyThreshold = val;
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if(verboseLevel > 0) {
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G4cout << "### G4ElectronCapture: Tracking cut E(MeV) = "
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<< kinEnergyThreshold/MeV << G4endl;
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4ElectronCapture::BuildPhysicsTable(const G4ParticleDefinition&)
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{
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region = (G4RegionStore::GetInstance())->GetRegion(regionName);
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if(region && verboseLevel > 0) {
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G4cout << "### G4ElectronCapture: Tracking cut E(MeV) = "
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<< kinEnergyThreshold/MeV << " is assigned to " << regionName
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<< G4endl;
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}
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4bool G4ElectronCapture::IsApplicable(const G4ParticleDefinition&)
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{
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return true;
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}
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G4double
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G4ElectronCapture::PostStepGetPhysicalInteractionLength(const G4Track& aTrack,
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G4double,
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G4ForceCondition* condition)
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{
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// condition is set to "Not Forced"
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*condition = NotForced;
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G4double limit = DBL_MAX;
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if(region) {
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if(aTrack.GetVolume()->GetLogicalVolume()->GetRegion() == region &&
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aTrack.GetKineticEnergy() < kinEnergyThreshold) { limit = 0.0; }
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}
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return limit;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VParticleChange* G4ElectronCapture::PostStepDoIt(const G4Track& aTrack,
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const G4Step&)
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{
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pParticleChange->Initialize(aTrack);
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pParticleChange->ProposeTrackStatus(fStopAndKill);
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pParticleChange->ProposeLocalEnergyDeposit(aTrack.GetKineticEnergy());
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fParticleChange.SetProposedKineticEnergy(0.0);
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return pParticleChange;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4ElectronCapture::GetMeanFreePath(const G4Track&,G4double,
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G4ForceCondition*)
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{
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return DBL_MAX;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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