openmc.data.isotopes

openmc.data.isotopes(element: str) → list[tuple[str, float]]

Return naturally occurring isotopes and their abundances

Added 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