Engineering Physics Annotation << Back PERIODICITY OF NATURAL RADIOACTIVITY A.A. RUKHADZE O.B. KHAVROSHKIN V.V. TSYPLAKOV The existence of periodicities or just perturbation level of radioactivity of different sources found for a long time ago. Thus, the temporal variations β-radiation decay (decay numbers) 137Cs registered in April 19–23 1994 y. (Baurov Y.A.) and other researchers. Temporal variations in the analysis of records of β-radioactivity have long periods and short hard to stand out and limited to a few days and more. Good stands one-year variation in the distance Sun–Earth. Variations in the analysis of records of γ-radioactivity have a wide range of periods (from a few minutes to a day or more), all the spectra contain valid periods of the solar oscillations (up 40 periodov), long sunny periods are also found in of the Earth and the Moon oscillations. The observed effects of interaction of the neutrino flux from sources of γ-radiation allow a deeper study of the Sun, Earth seismicity and other related applied research. Study periodicities most effective in monitoring γ-radioactive. Key words: radioactive source, the frequency of radioactivity, β-, γ-radioactivity. Contacts: E-mail: khavole@ifz.ru Pp. 26-35.