resonance neutrons

https://doi.org/10.1351/goldbook.R05342
Neutrons whose @E02102@ corresponds to the @R05334@ of a specified @N04257@ or element. If the @N04257@ is not specified, the term refers to @R05326@ neutrons of 239U.
Source:
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2522 [Terms] [Paper]