openmc.data.decay_constant

openmc.data.decay_constant(isotope)[source]

Return decay constant of isotope in [s^-1]

Decay constants are based on half-life values from the half_life() function. When the isotope is stable, a decay constant of zero is returned.

New in version 0.13.1.

Parameters

isotope (str) – Name of isotope, e.g., ‘Pu239’

Returns

Decay constant of isotope in [s^-1]

Return type

float