Abstract
Measurements have been made of the energy distribution of neutrons produced in the passage of 14-Mev neutrons through layers of Th232, U233, U235, U238 and Pu239. It is shown for all nuclides which were investigated that the secondary-neutron spectrum consists of two components; fission neutrons and evaporation neutrons. The dependence of the coefficients in the secondary neutron spectrum on the nuclear constants of the corresponding nuclides are determined, thus making it possible to find these coefficients without an experimental investigation of the neutron spectra.
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Additional information
The authors wish to express their thanks to V. A. Davidenko for his interest in the work and discussion of the results, to A. G. Shlygin for taking part in the initial stages in the work, to Iu. A. Vasil'ev, G. S. Malkiel' and E. I. Sirotinin for exposing the plates in the accelerator, and to L. S. Andreev, L. V. Evseev, N. F. Nikolaev and V. A. Chernyshov for scanning the plates.
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Zamiatnin, I.S., Safina, I.N., Gutnikova, E.K. et al. Spectra of neutrons produced by 14-Mev neutrons in fissile materials. The Soviet Journal of Atomic Energy 4, 443–449 (1958). https://doi.org/10.1007/BF01880567
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DOI: https://doi.org/10.1007/BF01880567