Radiative Transfer Photon Packets

Class providing photon packets for Monte Carlo radiative transfer calculations—discrete bundles of photon energy that are launched from sources and propagated through the computational domain, interacting with matter via absorption and scattering. Each packet carries a wavelength (in AA), a wavelength range, a luminosity (in \(L_\odot\)), a 3-D position, a direction of propagation, and a weight tracking how much of the original energy remains. The packet’s trajectory through the grid determines the local radiation field and drives the ionization and heating of the matter.

Default implementation: radiativeTransferPhotonPacketSimple

Methods

wavelengthSet → void

Set the wavelength (in AA) of the photon packet.

  • double precision, intent(in ) :: wavelength

wavelength → double precision

Get the wavelength (in AA) of the photon packet.

wavelengthMinimumSet → void

Set the minimum wavelength (in AA) of the photon packet.

  • double precision, intent(in ) :: wavelength

wavelengthMinimum → double precision

Get the minimum wavelength (in AA) of the photon packet.

wavelengthMaximumSet → void

Set the maximum wavelength (in AA) of the photon packet.

  • double precision, intent(in ) :: wavelength

wavelengthMaximum → double precision

Get the maximum wavelength (in AA) of the photon packet.

luminositySet → void

Set the luminosity (in \(L_\odot\)) of the photon packet.

  • double precision, intent(in ) :: luminosity

luminosity → double precision

Get the luminosity (in \(L_\odot\)) of the photon packet.

positionSet → void

Set the position of the photon packet.

  • double precision, intent(in ), dimension(3) :: position

position → double precision, dimension(3)

Get the position of the photon packet.

directionSet → void

Set the direction of the photon packet.

  • double precision, intent(in ), dimension(3) :: direction

direction → double precision, dimension(3)

Get the direction of the photon packet.

sourceType → integer

Get a integer type describing the source of the photon packet.

sourceTypeSet → void

Set an integer type describing the source of the photon packet.

  • integer, intent(in ) :: sourceType

radiativeTransferPhotonPacketSimple

A simple photon packet class for Monte Carlo radiative transfer that tracks the minimum required properties: wavelength, luminosity, three-dimensional position, and propagation direction. The initial wavelength and luminosity of each packet are set by [wavelength] and [luminosity], with wavelength bounds given by [wavelengthMinimum] and [wavelengthMaximum].

(Default implementation)

Methods

  • calculationReset — Reset memoized calculations.

Parameters

  • [wavelength] (real; default 1.0d4) — The wavelength of the photon packet (in AA).

  • [wavelengthMinimum] (real; default 0.5d4) — The minimum wavelength of the photon packet (in AA).

  • [wavelengthMaximum] (real; default 2.0d4) — The maximum wavelength of the photon packet (in AA).

  • [luminosity] (real; default 1.0d0) — The luminosity of the photon packet (in \(L_\odot\)).