Photoneutron reaction cross sections for 90Zr in different experiments

Varlamov, V.V.; Davydov, A.I.; Mostakov, I.A.; Orlin, V.N.

Авторы: Varlamov V.V., Davydov A.I., Mostakov I.A., Orlin V.N.
Журнал: Physics of Atomic Nuclei
Том: 87
Номер: 5
Год издания: 2024
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 575
Последняя страница: 585
Аннотация: Reliability of the data on partial photoneutron reactions on 90Zr obtained in experiment carried out on the beam of bremsstrahlung was investigated using the experimental-theoretical method for partial reactions cross sections evaluation basing on objective physical criteria. It is found out that (g, 1n) and (g, 2n) reactions cross sections obtained using the corrections calculated via statistical theory to the neutron yield cross section σ(g, xn) = σ(g, 1n)+2σ(g, 2n) satisfy physical criteria of data reliability. The integrated characteristics of the cross sections of the reactions (g, 1n) and (g, 2n) in which the distinct structural features were obtained, and the experimentally measured neutron yield cross section σ(g, xn) agree with those of evaluated cross sections. This shows that information on 90Zr partial reactions competition obtained using statistical theory satisfies physical criteria of data reliability. The evaluated reaction cross sections are compared in detail with analogous data obtained before using the results of experiments carried out on the beams of quasimoenergetic annihilation photons.
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