delayed neutron


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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 ?
Unlike differential die-away or delayed neutrons and gamma rays, this signature can be detected with passive means provided the SNM is not well shielded.
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.
In other words, after the pile went critical, there was a slight pause before the delayed neutrons were emitted and everything went awry.
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