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, Russian   Periodicity: 4 times per year   Open access peer reviewed journal

Full text (ua)

Abstract: Measurements of the transmission of neutrons through two samples of ²³⁵U and Cd, which are simultaneously on neutron beam, with different sequence of their location for different exposure times of the samples on the beam, are performed. Previously observed difference in these transmissions is confirmed – asymmetry of transmission. The purpose of the measurements is to determine the lifetime of the expected metastable states, to explain the observed asymmetry of transmission. Based on the results of asymmetry of transmission measurements, it was found that it is less than 5 s.

Keywords: neutron, cross section, lifetime, neutron flux density, asymmetry of transmission, reduced transition probability, metastable state.

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