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geant4/examples/extended/biasing/GB05/include/GB05BOptnSplitAndKillByCrossSection.hh
2025-12-05 08:54:02 +01:00

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/// \file GB05BOptnSplitAndKillByCrossSection.hh
/// \brief Definition of the GB05BOptnSplitAndKillByCrossSection class
#ifndef GB05BOptnSplitAndKillByCrossSection_hh
#define GB05BOptnSplitAndKillByCrossSection_hh 1
#include "G4ParticleChange.hh"
#include "G4VBiasingOperation.hh"
class GB05BOptnSplitAndKillByCrossSection : public G4VBiasingOperation
{
public:
// -- Constructor :
GB05BOptnSplitAndKillByCrossSection(G4String name);
// -- destructor:
~GB05BOptnSplitAndKillByCrossSection() override;
public:
// ----------------------------------------------
// -- Methods from G4VBiasingOperation interface:
// ----------------------------------------------
// -- Unused:
const G4VBiasingInteractionLaw*
ProvideOccurenceBiasingInteractionLaw(const G4BiasingProcessInterface*, G4ForceCondition&) final
{
return nullptr;
}
G4VParticleChange* ApplyFinalStateBiasing(const G4BiasingProcessInterface*, const G4Track*,
const G4Step*, G4bool&) final
{
return nullptr;
}
// -- Used methods ("non-physics biasing methods"):
// ------------------------------------------------
// -- Method to return the distance or the condition under which
// -- requesting the biasing.
// -- Here this distance will be sampled according the exponential
// -- interaction law, using the interaction length passed to the
// -- method SetInteractionLength(G4double) below.
G4double DistanceToApplyOperation(const G4Track*, G4double, G4ForceCondition* condition) final;
// -- Method the generate the final state, which is made of the primary
// -- with half of its original weight, and a clone of it.
G4VParticleChange* GenerateBiasingFinalState(const G4Track*, const G4Step*) final;
// -- Specific to this example:
// ----------------------------
void SetInteractionLength(G4double interactionLength)
{
fInteractionLength = interactionLength;
}
private:
G4ParticleChange fParticleChange;
G4double fInteractionLength;
};
#endif