Gabriele Cosmo
37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
Example GB04 : bremsstrahlung splitting
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This example illustrates the use of the generic biasing classes to create
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a bremsstrahlung splitting technique.
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Note that the EM package also offers a bremsstrahlung splitting, that is
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built-in to the package.
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GB04BOptnBremSplitting
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The bremsstrahlung splitting is implemented in the GB04BOptnBremSplitting
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class (BOptn = Biasing Operation), which acts on the final state creation
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of the bremsstrahlung process.
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GB04BOptrBremSplitting
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Decisions when to apply the GB04BOptnBremSplitting biasing operation are
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taken by the GB04BOptrBremSplitting (BOptr = Biasing Operator) operator. This
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one also configures the biasing operation, setting it the splitting factor
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and its behavior regarding electrons to be biased : only the primary one, or
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all, and only the first bremsstrahlung operation, or all. These are
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controled by this specific example commands:
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/GB04/biasing/setSplittingFactor [N splitting]
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/GB04/biasing/biasPrimaryOnly [true/false]
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/GB04/biasing/biasOnlyOnce [true/false]
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The geometry is minimal : a single volume to which an instance of
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GB04BOptrBremSplitting is attached to.
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The wrapping of physics processes by G4BiasingProcessInterface processes
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is simply handled by the G4GenericBiasingPhysics physics constructor, as shown
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in the main program.
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