52Сr photoneutron reactions in experiments with bremsstrahlung

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: 6
Год издания: 2024
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 669
Последняя страница: 677
DOI: 10.1134/S1063778824700662
Аннотация: The reliability of data of the (γ, 1n) and (γ, 2n) reactions on 52Cr obtained in experiment on the beam of bremsstrahlung using the corrections to the neutron yield cross section σ(γ, xn) = σ(γ, 1n) + 2σ(γ, 2n) calculated via statistical theory was investigated. Using the experimental-theoretical method for evaluating photoneutron partial reaction cross sections based on objective physical criteria, it was shown that partial reaction cross sections obtained do not satisfy physical criteria of reliability. Experimental cross section of the 52Cr(γ, 1n)51Cr reaction is unreliably significantly underestimated, but that of the 52Cr(γ, 2n)50Cr reaction, on the contrary, is overestimated in comparison with evaluated ones. It is shown that it is the results of the shortcomings of the method for obtaining information about cross sections of partial reactions. The main reason is the disregard of the contribution of two-nucleon reaction (γ, 1n1p) main features (energy position and amplitude) of whose cross section compete with those of also twonucleon reaction (γ, 2n), though multiplicities of neutrons from those reactions are different.
Добавил в систему: Варламов Владимир Васильевич

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