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Proceedings Paper

Pre-flight performance of a micro-satellite TSUBAME for X-ray polarimetry of gamma-ray bursts
Author(s): Yoichi Yatsu; Kei Ito; Shin Kurita; Makoto Arimoto; Nobuyuki Kawai; Masanori Matsushita; Shota Kawajiri; Shogo Kitamura; Saburo Matunaga; Shin'ichi Kimura; Jun Kataoka; Takeshi Nakamori; Sin Kubo
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Paper Abstract

To measure the polarization of gamma-ray bursts in X-ray energy band, we have developed a 50 kg micro-satellite named "SUBAME". The satellite has a compact and high-sensitive hard X-ray polarimeter employing newly-developed shock resistant multi-anode photomultipliers and Si avalanche photodiodes. Thanks to the ultra low-noise detectors and signal processors, the polarimeter can cover a wide energy range of 30􀀀200 keV even at 25°C with a high modulation factor of 62 %. TSUBAME is in the phase of final functional tests waiting for shipping to Baikonur and will be launched into a sun-synchronous orbit at an altitude of 700 km in late 2014. In this paper, the pre-ight performance of the gamma-ray detector system and the satellite bus system are presented.

Paper Details

Date Published: 24 July 2014
PDF: 13 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91440L (24 July 2014); doi: 10.1117/12.2056275
Show Author Affiliations
Yoichi Yatsu, Tokyo Institute of Technology (Japan)
Kei Ito, Tokyo Institute of Technology (Japan)
Shin Kurita, Tokyo Institute of Technology (Japan)
Makoto Arimoto, Tokyo Institute of Technology (Japan)
Nobuyuki Kawai, Tokyo Institute of Technology (Japan)
Masanori Matsushita, Tokyo Institute of Technology (Japan)
Shota Kawajiri, Tokyo Institute of Technology (Japan)
Shogo Kitamura, Tokyo Institute of Technology (Japan)
Saburo Matunaga, Tokyo Institute of Technology (Japan)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Shin'ichi Kimura, Tokyo Univ. of Science (Japan)
Jun Kataoka, Waseda Univ. (Japan)
Takeshi Nakamori, Yamagata Univ. (Japan)
Sin Kubo, Clear Pulse Ltd. (Japan)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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