The long term observation of the high energy electrons and protons on the Internatilnal Space Station

Haruka Ueno; Haruhisa Matsumoto; Ryuho Kataoka

Presentation information

[EE] Poster

P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] [EE] Space Weather, Space Climate, VarSITI

Tue. May 23, 2017 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall HALL7)

convener:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen(NASA Goddard Space Flight Center), Kanya Kusano(Institute for Space-Earth Environmental Research, Nagoya University), Kazuo Shiokawa(Institute for Space-Earth Environmental Research, Nagoya University)

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[PEM12-P33] The long term observation of the high energy electrons and protons on the Internatilnal Space Station

*Haruka Ueno¹, Haruhisa Matsumoto¹, Ryuho Kataoka² (1.Japan Aerospace Exploration Agency, 2.National Institute of Polar Research)

Keywords:the International Space Station, Space radiation, Radiation exposure, High energy particles

JAXA has operated the Standard DOse Monitor (SDOM) since 2009. SDOM measures the energy distributions of high-energy light particles such as electrons, protons, alpha, which cause deterioration of component materials and malfunction of electronic components. Also in order to evaluate the dose outside the International Space Station (ISS), data has been provided to NASA since 2016 and is used as data for radiation dose assessment.
We will introduce the solar cycle variation and geomagnetic activity dependence of SDOM data. In addition, as reported in Kataoka et al. (2016), relativistic electron precipitation (REP) event related to solar activity is observed in the ISS orbit. Based on the SDOM observation data during the REP events, we will quantitatively discuss variation of the radiation belt and exposed dose in a extra vehicular activity.