delayed neutrons

https://doi.org/10.1351/goldbook.D01581
Neutrons emitted by
fission products
formed by
nuclear decay
(the observed delay is due to the preceding
nuclear decay
or decays).
Source:
PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1546 [Terms] [Paper]