celeritas::PrimaryGenerator Class Reference

Generate a vector of primaries. More...

#include <PrimaryGenerator.hh>

Inheritance diagram for celeritas::PrimaryGenerator:

Public Types
Type aliases
using	PrimaryGeneratorEngine = std::mt19937
using	EnergySampler = std::function< real_type(PrimaryGeneratorEngine &)>
using	PositionSampler = std::function< Real3(PrimaryGeneratorEngine &)>
using	DirectionSampler = std::function< Real3(PrimaryGeneratorEngine &)>
using	SPConstParticles = std::shared_ptr< ParticleParams const >
using	result_type = std::vector< Primary >
using	Input = inp::PrimaryGenerator
Public Types inherited from celeritas::EventReaderInterface
using	VecPrimary = std::vector< Primary >
using	result_type = VecPrimary

Public Member Functions
	PrimaryGenerator (Input const &, ParticleParams const &particles)
	Construct with options and shared particle data.
	CELER_DELETE_COPY_MOVE (PrimaryGenerator)
	Prevent copying and moving.
result_type	operator() () final
	Generate primary particles from a single event.
size_type	num_events () const override
	Get total number of events.
void	seed (UniqueEventId)
	Reseed RNG for interaction with celer-g4.

Static Public Member Functions
static PrimaryGenerator	from_options (SPConstParticles, PrimaryGeneratorOptions const &)
	Construct from user input.

Additional Inherited Members
Protected Member Functions inherited from celeritas::EventReaderInterface
	CELER_DEFAULT_COPY_MOVE (EventReaderInterface)

Detailed Description

Generate a vector of primaries.

This simple helper class can be used to generate primary particles of one or more particle types with the energy, position, and direction sampled from distributions. If more than one PDG number is specified, an equal number of each particle type will be produced. Each operator() call will return a single event until num_events events have been generated.

Todo:

Refactor generators so that event ID is an input and vector of primaries (which won't have an event ID) is output.

Member Function Documentation

from_options()

PrimaryGenerator celeritas::PrimaryGenerator::from_options ( SPConstParticles  particles, PrimaryGeneratorOptions const &  opts  )

static

Construct from user input.

This creates a PrimaryGenerator from options read from a JSON input using a few predefined energy, spatial, and angular distributions (that can be extended as needed).

num_events()

size_type celeritas::PrimaryGenerator::num_events ( ) const

inlineoverridevirtual

Get total number of events.

Implements celeritas::EventReaderInterface.

operator()()

auto celeritas::PrimaryGenerator::operator() ( )

finalvirtual

Generate primary particles from a single event.

Implements celeritas::EventReaderInterface.

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

• PrimaryGenerator.hh
• PrimaryGenerator.cc