Geant4 11.1.1
Toolkit for the simulation of the passage of particles through matter
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G4ChannelingOptrMultiParticleChangeCrossSection.hh
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1//
2// ********************************************************************
3// * License and Disclaimer *
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5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
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14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
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18// * This code implementation is the result of the scientific and *
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24// ********************************************************************
25//
26//-----------------------------------------------------------------
27//
28// G4ChannelingOptrMultiParticleChangeCrossSection
29//
30// Class Description:
31// A G4VBiasingOperator concrete implementation example to
32// illustrate how an operator can make use of another operator.
33// In the present case, the G4ChannelingOptrChangeCrossSection
34// operator, that is made to bias processes of one particle
35// type is instancied several times, one for each particle type
36// to bias.
37//
38//-----------------------------------------------------------------
39//
40
41#ifndef G4ChannelingOptrMultiParticleChangeCrossSection_hh
42#define G4ChannelingOptrMultiParticleChangeCrossSection_hh 1
43
44#include "G4VBiasingOperator.hh"
47
48#include <map>
49
51public:
54
55 // ---------------------------------
56 // -- Method specific to this class:
57 // ---------------------------------
58 // -- Each particle type for which its name is passed will be biased; *provided*
59 // -- that the proper calls to biasingPhysics->Bias(particleName) have been done
60 // -- in the main program.
61 void AddParticle( G4String particleName );
63
64
65private:
66 // -----------------------------
67 // -- Mandatory from base class:
68 // -----------------------------
69 // -- This method returns a biasing operation that will bias the physics process occurrence:
70 virtual G4VBiasingOperation*
71 ProposeOccurenceBiasingOperation(const G4Track* track,
72 const G4BiasingProcessInterface* callingProcess);
73 // -- Methods not used:
74 virtual G4VBiasingOperation*
75 ProposeFinalStateBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
76 {return 0;}
77 virtual G4VBiasingOperation*
78 ProposeNonPhysicsBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
79 {return 0;}
80
81
82private:
83 // -- ("using" is to avoid compiler complaining against (false) method shadowing.)
85
86 // -- Optionnal base class method implementation.
87 // -- This method is called to inform the operator that a proposed operation has been applied.
88 // -- In the present case, it means that a physical interaction occured (interaction at
89 // -- PostStepDoIt level):
90 virtual void OperationApplied( const G4BiasingProcessInterface* callingProcess,
91 G4BiasingAppliedCase biasingCase,
92 G4VBiasingOperation* occurenceOperationApplied,
93 G4double weightForOccurenceInteraction,
94 G4VBiasingOperation* finalStateOperationApplied,
95 const G4VParticleChange* particleChangeProduced );
96
97public:
98 // -- Optionnal base class method. It is called at the time a tracking of a particle starts:
99 void StartTracking( const G4Track* track );
100
101private:
102 // -- List of associations between particle types and biasing operators:
103 std::map < const G4ParticleDefinition*,
104 G4ChannelingOptrChangeCrossSection* > fBOptrForParticle;
105 std::vector < const G4ParticleDefinition* > fParticlesToBias;
106 G4ChannelingOptrChangeCrossSection* fCurrentOperator;
107
108 // -- count number of biased interations for current track:
109 G4int fnInteractions;
110};
111
112#endif
G4BiasingAppliedCase
double G4double
Definition: G4Types.hh:83
int G4int
Definition: G4Types.hh:85
virtual void OperationApplied(const G4BiasingProcessInterface *callingProcess, G4BiasingAppliedCase biasingCase, G4VBiasingOperation *operationApplied, const G4VParticleChange *particleChangeProduced)