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Proceedings Paper

Optical design and performance of the 12- to 26-µm channel (MIR-L) of the infrared camera on board ASTRO-F
Author(s): Naofumi Fujishiro; Hideo Matsuhara; Yuji Ikeda; Tomoyasu Yamamuro; Norihide Takeyama; Takashi Onaka; Hirokazu Kataza; Takehiko Wada; Kazunori Uemizu; Itsuki Sakon; Chiaki Ihara; Daisuke Ishihara; Woojung Kim; Munetaka Ueno; Hidenori Watarai; Hiroshi Murakami
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Paper Abstract

MIR-L is a 12-26μm channel of Infrared Camera(IRC) onboard ASTRO-F. The camera employs a refractive optics which consists of 5 lenses (CsI - CsI - KRS-5 - CsI - KRS-5) and a large format Si:As IBC array detector (256 x 256 pixels). The design concept is to realize a wide field of view with a compact size. It has 2 observing modes: a wide field imaging with a field of view of 10.7 x 10.2arcmin2 or a pixel resolution of 2.5 x 2.4arcsec2/pixel in 3 bands (12.5-18μm, 14-26μm, 22-26μm), and low resolution spectroscopy with a spectral resolution R = λ/Δλ ≈40 in 2 bands 11-19μm,18-26μm). It also has a small slit to adapt for spectroscopic observations of extended sources. We describe the current design of the optics and the mounting architecture of MIR-L and evaluation of the optical performance at cryogenic temperatures.

Paper Details

Date Published: 12 October 2004
PDF: 10 pages
Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.551538
Show Author Affiliations
Naofumi Fujishiro, ISAS/Japan Aerospace Exploration Agency (Japan)
Univ. of Tokyo (Japan)
Hideo Matsuhara, ISAS/Japan Aerospace Exploration Agency (Japan)
Yuji Ikeda, Genesia Corp. (Japan)
Tomoyasu Yamamuro, Genesia Corp. (Japan)
Norihide Takeyama, Genesia Corp. (Japan)
Takashi Onaka, Univ. of Tokyo (Japan)
Hirokazu Kataza, ISAS/Japan Aerospace Exploration Agency (Japan)
Takehiko Wada, ISAS/Japan Aerospace Exploration Agency (Japan)
Kazunori Uemizu, Nishi-Harima Astronomical Observatory (Japan)
Itsuki Sakon, Univ. of Tokyo (Japan)
Chiaki Ihara, Univ. of Tokyo (Japan)
Daisuke Ishihara, Univ. of Tokyo (Japan)
Woojung Kim, Japan Aerospace Exploration Agency (Japan)
Univ. of Tokyo (Japan)
Munetaka Ueno, ISAS/Japan Aerospace Exploration Agency (Japan)
Hidenori Watarai, ISAS/Japan Aerospace Exploration Agency (Japan)
Hiroshi Murakami, ISAS/Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 5487:
Optical, Infrared, and Millimeter Space Telescopes
John C. Mather, Editor(s)

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