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Delayed neutrons and symmetric fission

B.P. Maksyutenko, A. A. Shimanskii

Abstract

It is estimated that at E/sub n/=15 MeV symmetric-fission fragments, particularly /sup 128/In, contribute appreciably to the delayed-neutron yields. The parameters of the distribution of fragment-isotopes are calculated for this energy region for /sup 235/U and /sup 238/U and the value of P/sub n/ is determined for /sup 128/In from the falloff of the delayed-neutron activity of these materials. The ratio of cumulative yields is calculated for seven pure precursors at this energy for the same materials.

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Key concepts: Fission, Delayed neutron, Nuclear physics, Neutron, Uranium-235, Isotope, Prompt neutron, Physics