2015•Energy ProcediaOpen access

Theoretical Study of Beta Decay for Delayed Neutron

H. Koura, Satoshi Chiba

Abstract

A theoretical study has been carried out on delayed neutrons. Such neutrons are produced by β decay of neutron-rich fission fragments. The average number of delayed neutrons is estimated based on the sum of the β-delayed neutron-emission probabilities multiplied by the cumulative fission yield for each nucleus. Using the gross theory of β decay, the ability to theoretically reproduce the β-decay rate and the delayed neutron emission probability is discussed.

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Key concepts: Delayed neutron, Neutron emission, Neutron, Nuclear physics, Fission, Prompt neutron, Physics, Fast fission