Gabriele Cosmo
96 lines
3.9 KiB
C++
96 lines
3.9 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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//
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// G4BOptnChangeCrossSection
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//
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// Class Description:
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// A G4VBiasingOperation to change a process cross-section.
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//
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//
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//---------------------------------------------------------------
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// Initial version Nov. 2013 M. Verderi
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#ifndef G4BOptnChangeCrossSection_hh
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#define G4BOptnChangeCrossSection_hh 1
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#include "G4VBiasingOperation.hh"
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class G4InteractionLawPhysical;
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class G4BOptnChangeCrossSection : public G4VBiasingOperation {
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public:
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// -- Constructor :
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G4BOptnChangeCrossSection(G4String name);
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// -- destructor:
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virtual ~G4BOptnChangeCrossSection();
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public:
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// -- Methods from G4VBiasingOperation interface:
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// ----------------------------------------------
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// -- Used:
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virtual const G4VBiasingInteractionLaw* ProvideOccurenceBiasingInteractionLaw( const G4BiasingProcessInterface*,
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G4ForceCondition& proposeForceCondition );
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// -- Unused:
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virtual G4VParticleChange* ApplyFinalStateBiasing( const G4BiasingProcessInterface*,
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const G4Track*,
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const G4Step*,
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G4bool& ) {return 0;}
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virtual G4double DistanceToApplyOperation( const G4Track*,
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G4double,
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G4ForceCondition*) {return DBL_MAX;}
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virtual G4VParticleChange* GenerateBiasingFinalState( const G4Track*,
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const G4Step* ) {return 0;}
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public:
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// -- Additional methods, specific to this class:
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// ----------------------------------------------
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// -- return concrete type of interaction law:
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G4InteractionLawPhysical* GetBiasedExponentialLaw() {return fBiasedExponentialLaw;}
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// -- set biased cross-section:
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void SetBiasedCrossSection(G4double xst, bool updateInteractionLength = false);
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G4double GetBiasedCrossSection() const;
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// -- Sample underneath distribution:
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void Sample();
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// -- Update for a made step, without resampling:
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void UpdateForStep( G4double stepLength );
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// -- set/get if interaction occured.
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// -- Interaction flag turned off in "Sample()" method.
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G4bool GetInteractionOccured() const { return fInteractionOccured; }
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void SetInteractionOccured() { fInteractionOccured = true; }
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private:
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G4InteractionLawPhysical* fBiasedExponentialLaw;
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G4bool fInteractionOccured;
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};
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#endif
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