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24 July 2014 Pre-flight performance of a micro-satellite TSUBAME for X-ray polarimetry of gamma-ray bursts
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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.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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, and Sin Kubo "Pre-flight performance of a micro-satellite TSUBAME for X-ray polarimetry of gamma-ray bursts", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91440L (24 July 2014); https://doi.org/10.1117/12.2056275
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