delayed neutron

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Related to Prompt neutron: delayed neutron fraction

delayed neutron

n
(Nuclear Physics) a neutron produced in a nuclear reactor by the breakdown of a fission product and released a short time after neutrons produced in the primary process
References in periodicals archive ?
Since most neutrons released by fission of SNM are "prompt" (released immediately), the prompt neutron signal is much larger, and thus easier to detect, than that of delayed neutrons.