24 July 2014 Sub-MeV all sky survey with a compact Si/CdTe Compton telescope
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Recent progress in wide field of view or all-sky observations such as Swift/BAT hard X-ray monitor and Fermi GeV gamma-ray observatory has opened up a new era of time-domain high energy astro-physics addressing new insight in, e.g., particle acceleration in the universe. MeV coverage with comparable sensitivity, i.e. 1 ~ 10 mCrab is missing and a new MeV all-sky observatory is needed. These new MeV mission tend to be large, power- consuming and hence expensive, and its realization is yet to come. A compact sub-MeV (0.2-2 MeV) all-sky mission is proposed as a path finder for such mission. It is based on a Si/CdTe semiconductor Compton telescope technology employed in the soft gamma-ray detector onboard ASTRO-H, to be launched in to orbit on late 2015. The mission is kept as small as 0:5 X 0:5 X 0:4 m3, 150 kg in weight and 200 W in power in place of the band coverage above a few MeV, in favor of early realization as a sub-payload to other large platforms, such as the international space station.
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Kazuhiro Nakazawa, Kazuhiro Nakazawa, Tadayuki Takahashi, Tadayuki Takahashi, Shin Watanabe, Shin Watanabe, Yuto Ichinohe, Yuto Ichinohe, Shin'ichiro Takeda, Shin'ichiro Takeda, Teruaki Enoto, Teruaki Enoto, Yasushi Fukazawa, Yasushi Fukazawa, Tuneyoshi Kamae, Tuneyoshi Kamae, Motohide Kokubun, Motohide Kokubun, Kazuo Makishima, Kazuo Makishima, Takefumi Mitani, Takefumi Mitani, Tsunefumi Mizuno, Tsunefumi Mizuno, Masaharu Nomachi, Masaharu Nomachi, Hiroyasu Tajima, Hiroyasu Tajima, Takeshi Takashima, Takeshi Takashima, Toru Tamagawa, Toru Tamagawa, Yukikatsu Terada, Yukikatsu Terada, Makoto Tashiro, Makoto Tashiro, Yasunobu Uchiyama, Yasunobu Uchiyama, Tetsuo Yoshimitsu, Tetsuo Yoshimitsu, "Sub-MeV all sky survey with a compact Si/CdTe Compton telescope", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91440J (24 July 2014); doi: 10.1117/12.2055422; https://doi.org/10.1117/12.2055422


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