GB05/include/GB05BOptnSplitAndKillByCrossSection.hh

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0028 /// \file GB05BOptnSplitAndKillByCrossSection.hh
0029 /// \brief Definition of the GB05BOptnSplitAndKillByCrossSection class
0030
0031 #ifndef GB05BOptnSplitAndKillByCrossSection_hh
0032 #define GB05BOptnSplitAndKillByCrossSection_hh 1
0033
0034 #include "G4ParticleChange.hh"
0035 #include "G4VBiasingOperation.hh"
0036
0037 class GB05BOptnSplitAndKillByCrossSection : public G4VBiasingOperation
0038 {
0039   public:
0040     // -- Constructor :
0041     GB05BOptnSplitAndKillByCrossSection(G4String name);
0042     // -- destructor:
0043     virtual ~GB05BOptnSplitAndKillByCrossSection();
0044
0045   public:
0046     // ----------------------------------------------
0047     // -- Methods from G4VBiasingOperation interface:
0048     // ----------------------------------------------
0049     // -- Unused:
0050     virtual const G4VBiasingInteractionLaw*
0051     ProvideOccurenceBiasingInteractionLaw(const G4BiasingProcessInterface*, G4ForceCondition&) final
0052     {
0053       return 0;
0054     }
0055     virtual G4VParticleChange* ApplyFinalStateBiasing(const G4BiasingProcessInterface*,
0056                                                       const G4Track*, const G4Step*, G4bool&) final
0057     {
0058       return 0;
0059     }
0060
0061     // -- Used methods ("non-physics biasing methods"):
0062     // ------------------------------------------------
0063     // -- Method to return the distance or the condition under which
0064     // -- requesting the biasing.
0065     // -- Here this distance will be sampled according the exponential
0066     // -- interaction law, using the interaction length passed to the
0067     // -- method SetInteractionLength(G4double)  below.
0068     virtual G4double DistanceToApplyOperation(const G4Track*, G4double,
0069                                               G4ForceCondition* condition) final;
0070     // -- Method the generate the final state, which is made of the primary
0071     // -- with half of its original weight, and a clone of it.
0072     virtual G4VParticleChange* GenerateBiasingFinalState(const G4Track*, const G4Step*) final;
0073
0074     // -- Specific to this example:
0075     // ----------------------------
0076     void SetInteractionLength(G4double interactionLength)
0077     {
0078       fInteractionLength = interactionLength;
0079     }
0080
0081   private:
0082     G4ParticleChange fParticleChange;
0083     G4double fInteractionLength;
0084 };
0085
0086 #endif