openmc.data.AngleDistribution

class openmc.data.AngleDistribution(energy, mu)

Angle distribution as a function of incoming energy

Parameters:

• energy (Iterable of float) – Incoming energies in eV at which distributions exist

• mu (Iterable of openmc.stats.Univariate) – Distribution of scattering cosines corresponding to each incoming energy

Variables:

• energy (Iterable of float) – Incoming energies in eV at which distributions exist

• mu (Iterable of openmc.stats.Univariate) – Distribution of scattering cosines corresponding to each incoming energy

classmethod from_ace(ace, location_dist, location_start)

Generate an angular distribution from ACE data

Parameters:

• ace (openmc.data.ace.Table) – ACE table to read from

• location_dist (int) – Index in the XSS array corresponding to the start of a block, e.g. JXS(9).

• location_start (int) – Index in the XSS array corresponding to the start of an angle distribution array

Returns:

Angular distribution

Return type:

openmc.data.AngleDistribution

classmethod from_endf(ev, mt)

Generate an angular distribution from an ENDF evaluation

Parameters:

• ev (openmc.data.endf.Evaluation) – ENDF evaluation

• mt (int) – The MT value of the reaction to get angular distributions for

Returns:

Angular distribution

Return type:

openmc.data.AngleDistribution

classmethod from_hdf5(group)

Generate angular distribution from HDF5 data

Parameters:

group (h5py.Group) – HDF5 group to read from

Returns:

Angular distribution

Return type:

openmc.data.AngleDistribution

to_hdf5(group)

Write angle distribution to an HDF5 group

Parameters:

group (h5py.Group) – HDF5 group to write to