openmc.data.isotopes

openmc.data.isotopes(element)[source]

Return naturally occurring isotopes and their abundances

New in version 0.12.1.

Parameters

element (str) – Element symbol (e.g., ‘H’) or name (e.g., ‘helium’)

Returns

A list of tuples of (isotope, abundance)

Return type

list

Raises

ValueError – If the element name is not recognized