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Proceedings Paper

Far-Infrared Surveyor on AKARI: in-orbit characterization of transient response and radiation effects of Ge:Ga array detectors
Author(s): Hidehiro Kaneda; Toyoaki Suzuki; Alain Coulais; Yasuo Doi; Boris Fouks; Mitsunobu Kawada; Sin'itirou Makiuti; Shuji Matsuura; Noriko Murakami; Takao Nakagawa; Yoko Okada; Hiroshi Shibai; Mai Shirahata; Hidenori Takahashi; Akiko Yasuda
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Paper Abstract

We report the in-orbit performance of the AKARI/Far-Infrared Surveyor Ge:Ga photoconductors, focusing on the transient response and the radiation effects, to perform the characterization of these effects for data analyses. The behavior for these effects is found to be significantly different between the Short-Wavelength and Long-Wavelength array detectors of the FIS, most probably due to the difference in the array configuration. We discuss cosmic-ray radiation effects, referring to the results of pre-flight proton-beam irradiation measurements. We also describe our efforts to correct the slow transient response of the detectors by adopting a physical approach.

Paper Details

Date Published: 12 July 2008
PDF: 10 pages
Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70100E (12 July 2008); doi: 10.1117/12.788641
Show Author Affiliations
Hidehiro Kaneda, ISAS, Japan Aerospace Exploration Agency (Japan)
Toyoaki Suzuki, National Astronomical Observatory of Japan (Japan)
Alain Coulais, LERMA, Observatoire de Paris (France)
Yasuo Doi, Univ. of Tokyo (Japan)
Boris Fouks, Institute of Radioengineering and Electronics (Russia)
Mitsunobu Kawada, Nagoya Univ. (Japan)
Sin'itirou Makiuti, ISAS, Japan Aerospace Exploration Agency (Japan)
Shuji Matsuura, ISAS, Japan Aerospace Exploration Agency (Japan)
Noriko Murakami, Bisei Astronomical Observatory (Japan)
Takao Nakagawa, ISAS, Japan Aerospace Exploration Agency (Japan)
Yoko Okada, ISAS, Japan Aerospace Exploration Agency (Japan)
Hiroshi Shibai, Osaka Univ. (Japan)
Mai Shirahata, ISAS, Japan Aerospace Exploration Agency (Japan)
Hidenori Takahashi, Gunma Astronomical Observatory (Japan)
Akiko Yasuda, ISAS, Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 7010:
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter
Jacobus M. Oschmann; Mattheus W. M. de Graauw; Howard A. MacEwen, Editor(s)

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