openmc.data.atomic_mass¶

openmc.data.atomic_mass(isotope)[source]¶

Return atomic mass of isotope in atomic mass units.

Atomic mass data comes from the Atomic Mass Evaluation 2016.

Parameters:	isotope (str) – Name of isotope, e.g., ‘Pu239’
Returns:	Atomic mass of isotope in [amu]
Return type:	float