Far-Infrared Surveyor on AKARI: in-orbit characterization of transient response and radiation effects of Ge:Ga array detectors

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

doi:10.1117/12.788641

12 July 2008 Far-Infrared Surveyor on AKARI: in-orbit characterization of transient response and radiation effects of Ge:Ga array detectors

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

Author Affiliations +

Proceedings Volume 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter; 70100E (2008) https://doi.org/10.1117/12.788641
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

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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, and Akiko Yasuda "Far-Infrared Surveyor on AKARI: in-orbit characterization of transient response and radiation effects of Ge:Ga array detectors", Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70100E (12 July 2008); https://doi.org/10.1117/12.788641

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