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The 3rd ERG Mission Science Workshop
September 5-8, 2017
ASIAA, Taipei / NCKU, Tainan

Oral Presentation

The extremely high-energy electron experiments (XEP) onboard the ERG satellite

Author(s): Nana Higashio(JAXA), Haruhisa Matsumoto(JAXA)

Presenter: NANA Higashio (JAXA)

In 1958, the radiation belt (the Van Allen belt)was found by Prof. James Alfred Van Allen. It was thought to be static, but in the 1990s it rediscovered the radiation belt fluctuates greatly. There are some reasons to occur this phenomenon, but we have not understood a clear reason of this yet. On the other hand, it is well known that the energetic particle flux vary during geomagnetic disturbances and the relativistic electrons in the other radiation belt change with solar wind speed.
The Exploration of energization and Radiation in Geospace (ERG) will try to reveal this mechanism. The ERG satellite is the small space science platform for rapid investigation and test satellite of JAXA/ISAS. It was lanched in 2016. We made the instrument (The extremely high-energy electron experiments (XEP)) to detect a high-energy electron (400keV-20MeV). The XEP-e has 5 SSDs (Solid-State Silicon Detectors), one GSO single crystal scintillator and an anti-scintillator. It has one-way conic sight.
In this presentation we introduce the XEP-e and report its data that was got on orbit.

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