University of Tokyo
University of Tokyo
University of Tokyo
University of Tokyo
University of Tokyo
University of Tokyo
University of Tokyo
University of Tokyo
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
University of Tokyo
The Astro-E2 Hard X-ray Detector (HXD-2) is characterized by well-type phoswich counters in a compound-eye configuration which reduce the detector background to lower level than any other past hard X-ray mission. Astro-E2 will be operated in Low Earth Orbit. In such environment, the major origin of background is activation induced by trapped protons with the energy of approximately 100 MeV in South Atlantic Anomaly. In order to study activation properties of HXD-2, beam irradiation experiments have been carried out for a flight-equivalent unit of HXD-2, and the internal background has been measured with electronics which is identical with a flight model.
Astro-E2衛星搭載硬X線検出器(HXD-2)の放射化バックグラウンド特性
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