Яндекс.Метрика

V.L. Yanchukovsky, A.Yu. Belinskaia, R.Z. Khisamov

Многотомное издание: Proceedings of SPIE. 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics (Moscow, Russian Federation, 6-10 July 2020)
Том: 11560 , Год издания: 2020

Аннотация

Cosmic rays of galactic and solar origin are the main source of neutrons in the Earth's atmosphere. In the lower atmosphere at the Earth's surface, there is a lithospheric source, which exists due to nuclear interactions of cosmic radiation particles with the soil, the natural radioactivity of rocks and the spontaneous fission of uranium and thorium isotopes. Therefore, the observed changes in the intensity of neutrons near the earth's surface is due, on the one hand, changes in the concentration of radioactive gases in the earth's crust deformations, and on the other by variations in the intensity of cosmic rays and the atmosphere. Until recently, measurements of the intensity of the neutron flux of thermal energy were episodic. The thermal and slow neutron detector is a measuring apparatus for studying the modulation effects of a neutron flux in the atmosphere near the earth's surface and for diagnosing their sources. The article presents its design and main characteristics. Continuous monitoring of the neutron flux was carried out simultaneously using the presented detector and the 24NM-64 neutron monitor located in the same building. The article presents the results of monitoring the neutron flux at the Earth's surface and estimates the barometric effect for thermal and slow neutrons near the Earth's surface based on continuous observations using the proposed detector. The authors discuss seasonal changes in the anisotropy of the flux of thermal and slow neutrons at the Earth's surface.
индекс в базе ИАЦ: 030673