prompt neutron (English, noun)
expansion: prompt neutron (plural prompt neutrons)
Senses:
qualifier: nuclear physics
glosses: A neutron produced immediately by the fission of an atomic nucleus, instead of being emitted by decaying fission products seconds to minutes later; over 99% of all fission neutrons are prompt neutrons (the exact portion depends on the nuclide undergoing fission).
Forms:
form: prompt neutrons
tags: plural