Solar modulation of the GCR flux and dose rate, observed in space between 1991 and 2019.

Autor: Dachev TP; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria. Electronic address: tdachev59@gmail.com., Tomov BT; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Matviichuk YN; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Dimitrov PG; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Semkova JV; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Koleva RT; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Jordanova MM; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Bankov NG; Space Research and Technology Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 1, 1113 Sofia, Bulgaria., Shurshakov VA; State Research Center, Institute of Biomedical Problems, Russian Academy of Science, Moscow, Russian Federation., Benghin VV; State Research Center, Institute of Biomedical Problems, Russian Academy of Science, Moscow, Russian Federation.
Jazyk: angličtina
Zdroj: Life sciences in space research [Life Sci Space Res (Amst)] 2020 Aug; Vol. 26, pp. 114-124. Date of Electronic Publication: 2020 Jun 10.
DOI: 10.1016/j.lssr.2020.06.002
Abstrakt: The paper presents the solar modulation of the long-term galactic cosmic rays (GCR) flux and dose rates variations, observed during 14 space experiments by 10 Bulgarian build Liulin-type spectrometers (LTS) (Dachev et al., 2015a). They worked in near Earth space and in the interplanetary radiation environment between January 1991 and January 2019. Data were collected by LTS in the low Earth orbit (LEO) in the L range between 4 and 6.2 or outside the magnetosphere. The major advantage of the data sets are that they are obtained by the electronically identical LTS. The Liulin measurements of about monthly averaged flux and dose rate data are compared with the monthly values of the modulation parameter, reconstructed from the ground based cosmic ray data (Usoskin et al., 2017). A good correlation between the two data sets is observed. The most important achievement of the paper is that for the first time a proof of the solar modulation of the long-term variations of the monthly averaged dose rates is obtained. These long-term experimentally obtained dose rate data could be used for modeling of the GCR space radiation risks to humans in the near Earth radiation environment. Parallel to the long-term dose rate varitions, the monthly averaged flux variations are also presented.
(Copyright © 2020 The Committee on Space Research (COSPAR). Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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