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Proceedings Paper

Infrared camera (IRC) on board ASTRO-F (IRIS): design overview and current status
Author(s): Hidenori Watarai; Saneyuki Fujita; Daisuke Ishihara; Woojung Kim; Ippei Maeda; Hideo Matsuhara; Toshio Matsumoto; Hiroshi Murakami; Taketoshi Negishi; Takashi Onaka; Takafumi Ootsubo; Norihide Takeyama; Kazunori Uemizu; Munetaka Ueno; Takehiko Wada
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Paper Abstract

The design overview and current development status of the Infrared Camera (IRC) onboard the Japanese infrared space mission, ASTRO-F (commonly called as the Infrared Imaging Surveyor, IRIS), are presented. The IRC is one of the focal plane instruments of ASTRO-F and will make imaging and low- resolution spectroscopy observations in the wide spectral range of the near- to mid-infrared of 2 - 26 micrometers . ASTRO-F will be brought into an IRAS-type sun-synchronous polar orbit. The IRC will be operated in the pointing mode, in which the telescope will be pointed at a fixed target position on the sky for about 10 minutes. The pointed observation may be scheduled up to three times per orbit. The IRC has three channels: NIR (2 - 5 micrometers ), MIR-S (5 - 12 micrometers ) and MIR-L (12 - 26 micrometers ). All of the three channels use refractive optics. Each channel has a field-of-view of 10' X 10' with nearly diffraction-limited spatial resolution. The NIR and MIR-S channels simultaneously observe the same field on the sky, while the MIR-L observes the sky about 20' away from the NIR/MIR-S position. State- of-the-art large format array detectors manufactured by Raytheon/IRCoE are employed for the IRC. The NIR channel uses a 512 X 412 InSb array, and 256 X 256 Si:As IBC arrays are used for the MIR channels. Fabrication of the proto-model has been completed and the preliminary performance test is under way.

Paper Details

Date Published: 28 July 2000
PDF: 10 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393993
Show Author Affiliations
Hidenori Watarai, Institute of Space and Astronautical Science (Japan)
Saneyuki Fujita, Institute of Space and Astronautical Science (Japan)
Daisuke Ishihara, Univ. of Tokyo (Japan)
Woojung Kim, Institute of Space and Astronautical Science (Japan)
Ippei Maeda, Institute of Space and Astronautical Science (Japan)
Hideo Matsuhara, Institute of Space and Astronautical Science (Japan)
Toshio Matsumoto, Institute of Space and Astronautical Science (Japan)
Hiroshi Murakami, Institute of Space and Astronautical Science (Japan)
Taketoshi Negishi, Univ. of Tokyo (Japan)
Takashi Onaka, Univ. of Tokyo (Japan)
Takafumi Ootsubo, Univ. of Tokyo (Japan)
Norihide Takeyama, Univ. of Tokyo (Japan)
Kazunori Uemizu, Institute of Space and Astronautical Science (Japan)
Munetaka Ueno, Univ. of Tokyo (Japan)
Takehiko Wada, Institute of Space and Astronautical Science (Japan)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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