Abstract
A double ionization chamber containing a grid has been used to investigate how the mean kinetic energy of U235 fission fragments depends on the excitation energy of the fission nucleus. It has been found that the mean kinetic energies of the fragments from fission by thermal neutrons and neutrons with a mean energy of 5 Mev are the same to within ∼0.1%.
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Okolovich, V.N., Smirenkin, G.N. & Bondarenko, I.I. Precision comparison of the mean kinetic energy of U235 fission fragments from thermal neutrons and neutrons with a mean energy of 5 Mev. The Soviet Journal of Atomic Energy 12, 491–496 (1963). https://doi.org/10.1007/BF01481299
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DOI: https://doi.org/10.1007/BF01481299