Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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Yu. G. Shchepkin, V. I. Slisenko, E. A. Pavlenko, T. A. Kostyuk

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Neutrons interaction with matter under high density interactions (DI) was considered. It was shown that under neutron cross section measurement with high DI and production as result of interaction neutrons with matter of the second states with great value of such parameters as neutrons cross section, yield and life time probability of the interaction neutron with matter depends on DI and considered parameters. The expressions, related neutrons transmission, cross section and change of the neutrons transmission through the samples pair from different matters, which simultaneously placed on neutron beam, under the change of neutrons transmission sequence through them (transmission asymmetry) with DI and considered parameters of the second states were obtained. Method for revelation for the cross section change under DI change and improved experimental installation were described.

Keywords: density interaction, cross section, yield, time of life, transmission asymmetry, neutron, reactor, detector, filter, stability.

1. Герасимов А. С., Зарицкая Т. С., Рудик А. П. Справочник по образованию нуклидов в ядерных реакторах (Москва: Энергоатомиздат, 1989).

2. Гусев Н. Г., Дмитриев П. П. Квантовое излучение радиоактивных ядер. Справочник (Москва: Атомиздат, 1977).

3. Изотопы. Под ред. В. А. Баранова (Москва: ИздАт, 2000) 704 с.

4. Shchepkin Yu. G., Pavlenko E. A. Asymmetry of neutrons transmission. IV International Seminar on Interaction of Neutron with Nuclei. Neutron Spectroscopy, Nuclear Structure, Related topics (Dubna, 1996) p. 251

5. Щепкин Ю. Г., Слисенко В. И., Павленко Е. А., Костюк Т. А. Взаимодействие нейтронов с веществом при высокой плотности взаимодействий. Часть II. Экспериментальное исследование взаимодействия нейтронов с веществом при высокой плотности взаимодействий. Ядерна фізика та енергетика 13 (2012) 28. https://jnpae.kinr.kyiv.ua/13.1/Articles_PDF/jnpae-2012-13-0028-Shchepkin.pdf

6. Щепкин Ю. Г., Слисенко В. И., Шевель В. Н. Методика прямого измерения сечения захвата нейтронов радиоактивными ядрами. Ядерна фізика та енергетика 11 (2010) 302. https://jnpae.kinr.kyiv.ua/11.3/Articles_PDF/jnpae-2010-11-0302-Schepkin.pdf