Gabriele Cosmo
103 lines
4.6 KiB
C++
103 lines
4.6 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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// G4ChannelingOptrChangeCrossSection
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// Based On GB01BOptrChangeCrossSection
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// Class Description:
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// A G4VBiasingOperator concrete implementation example to
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// illustrate how to bias physics processes cross-section for
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// one particle type.
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// The G4VBiasingOperation G4BOptnChangeCrossSection is
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// selected by this operator, and is sent to each process
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// calling the operator.
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// A simple constant bias to the cross-section is applied,
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// but more sophisticated changes can be applied.
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//
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//---------------------------------------------------------------
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//
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#ifndef G4ChannelingOptrChangeCrossSection_hh
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#define G4ChannelingOptrChangeCrossSection_hh 1
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#include "G4VBiasingOperator.hh"
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class G4BOptnChangeCrossSection;
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class G4ParticleDefinition;
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#include <map>
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#include <unordered_map>
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enum G4ChannelingDensityRatio{
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fDensityRatioNotDefined = -1,
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fDensityRatioNone = 0,
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fDensityRatioNuDElD = 1,
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fDensityRatioNuD = 2,
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fDensityRatioElD = 3
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};
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class G4ChannelingOptrChangeCrossSection : public G4VBiasingOperator {
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public:
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// ------------------------------------------------------------
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// -- Constructor: takes the name of the particle type to bias:
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// ------------------------------------------------------------
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G4ChannelingOptrChangeCrossSection(G4String particleToBias, G4String name = "ChannelingChangeXS");
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virtual ~G4ChannelingOptrChangeCrossSection();
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virtual void StartRun();
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private:
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G4int fChannelingID;
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private:
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virtual G4VBiasingOperation*
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ProposeOccurenceBiasingOperation(const G4Track* track,
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const G4BiasingProcessInterface* callingProcess);
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virtual G4VBiasingOperation*
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ProposeFinalStateBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
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{return 0;}
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virtual G4VBiasingOperation*
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ProposeNonPhysicsBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
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{return 0;}
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private:
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using G4VBiasingOperator::OperationApplied;
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virtual void OperationApplied( const G4BiasingProcessInterface* callingProcess,
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G4BiasingAppliedCase biasingCase,
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G4VBiasingOperation* occurenceOperationApplied,
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G4double weightForOccurenceInteraction,
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G4VBiasingOperation* finalStateOperationApplied,
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const G4VParticleChange* particleChangeProduced );
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private:
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std::map< const G4BiasingProcessInterface*,
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G4BOptnChangeCrossSection* > fChangeCrossSectionOperations;
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G4bool fSetup;
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const G4ParticleDefinition* fParticleToBias;
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private:
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std::unordered_map<std::string,G4ChannelingDensityRatio> fProcessToDensity;
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};
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#endif
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