celeritas::AtomicRelaxationHelper Class Reference

Helper class for atomic relaxation. More...

#include <AtomicRelaxationHelper.hh>

Public Member Functions
	AtomicRelaxationHelper (AtomicRelaxParamsRef const &shared, AtomicRelaxStateRef const &states, ElementId el_id, TrackSlotId tid)
	Construct with shared and state data.
	operator bool () const
	Whether atomic relaxation should be applied.
size_type	max_secondaries () const
	Maximum number of secondaries that can be produced.
Span< SubshellId >	scratch () const
	Access scratch space.
AtomicRelaxation	build_distribution (CutoffView const &cutoffs, SubshellId shell_id, Span< Secondary > secondaries) const
	Create the sampling distribution.

Detailed Description

Helper class for atomic relaxation.

This class can be used inside an Interactor to simplify the creation of the sampling distribution for relaxation and the allocation of storage for secondaries created in both relaxation and the primary process.

// Allocate secondaries for a model that produces a single secondary
Span<Secondary> secondaries;
size_type       count = relax_helper.max_secondaries() + 1;
if (Secondary* ptr = allocate_secondaries(count))
{
    secondaries = {ptr, count};
}
else
{
    return Interaction::from_failure();
}
Interaction result;
 
// ...
 
AtomicRelaxation sample_relaxation = relax_helper.build_distribution(
    cutoffs, shell_id, secondaries.subspan(1));
auto outgoing             = sample_relaxation(rng);
result.secondaries        = outgoing.secondaries;
result.energy_deposition -= outgoing.energy;

Member Function Documentation

scratch()

Span< SubshellId > celeritas::AtomicRelaxationHelper::scratch ( ) const

inline

Access scratch space.

This temporary data is needed as part of a stack while processing the cascade of electrons.

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The documentation for this class was generated from the following file:

• AtomicRelaxationHelper.hh