Estimation of the Yield of “Scission” Neutrons from Thermal Neutron-Induced Fission of 239Pu

Results of investigations of the angular and energy distributions of prompt neutrons from 239 Pu fission observed on WWR-M type research reactor (Gatchina) are presented. Peculiarities observed in both angular and energy distributions of prompt neutrons can be explained by assuming the existence of...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2018, Vol.127 (4), p.659-670
Main Authors: Vorobyev, A. S., Shcherbakov, O. A., Gagarski, A. M., Petrov, G. A., Val’ski, G. V., Kuz’mina, T. E.
Format: Article
Language:English
Subjects:
Angular distribution
Anisotropy
Astrophysics
Classical and Quantum Gravitation
Cleavage
Elementary Particles
Fields
Fission
Gravitation
Neutrons
Nuclei
Nuclei (nuclear physics)
Particle and Nuclear Physics
Particles
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
Thermal neutrons
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Summary:Results of investigations of the angular and energy distributions of prompt neutrons from 239 Pu fission observed on WWR-M type research reactor (Gatchina) are presented. Peculiarities observed in both angular and energy distributions of prompt neutrons can be explained by assuming the existence of neutrons emitted near the instant of fissioning nucleus rupture. Anisotropy of the angular distribution of prompt neutrons in the frame of the center of mass of fission fragments (ψ(0°)/ψ(90°) ≈ 1.07–1.09) should also be taken into consideration.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776118090224