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Proceedings Paper

Revised specifications and current development status of MIMIZUKU: the mid-infrared instrument for the TAO 6.5-m telescope
Author(s): Takafumi Kamizuka; Takashi Miyata; Shigeyuki Sako; Ryou Ohsawa; Kentaro Asano; Mizuho Uchiyama; Kazushi Okada; Masahito Uchiyama; Tomohiko Nakamura; Itsuki Sakon; Takashi Onaka; Hirokazu Kataza; Tsutomu Aoki; Mamoru Doi; Natsuko M. Kato; Kimiaki Kawara; Yutaro Kitagawa; Kotaro Kohno; Masahiro Konishi; Shintaro Koshida; Takeo Minezaki; Tomoki Morokuma; Kentaro Motohara; Takao Soyano; Hidenori Takahashi; Yoichi Tamura; Toshihiko Tanabé; Masuo Tanaka; Ken'ichi Tarusawa; Ken Tateuchi; Soya Todo; Yuzuru Yoshii
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Paper Abstract

The MIMIZUKU is the first-generation mid-infrared instrument for the TAO 6.5-m telescope. It challenges to prove the origin of dust and the formation of planets with its unique capabilities, wide wavelength coverage and precise calibration capability. The wide wavelength coverage (2-38 μm) is achieved by three switchable cameras, NIR, MIR-S, and MIR-L. The specifications of the cameras are revised. A 5μm-cutoff HAWAII-1RG is decided to be installed in the NIR camera. The optical design of the MIR-L camera is modified to avoid detector saturation. Its final F-number is extended from 5.2 to 10.5. With these modifications, the field of view of the NIR and MIR-L camera becomes 1.2’ × 1.2’ and 31” × 31”, respectively. The sensitivity of each camera is estimated based on the revised specifications. The precise calibration is achieved by the “Field Stacker” mechanism, which enables the simultaneous observation of the target and the calibration object in different fields. The up-and-down motion of the cryostat (~ 1 t), critical for the Field Stacker, is confirmed to have enough speed (4 mm/s) and position accuracy (~ 50 μm). A control panel for the Field Stacker is completed, and its controllers are successfully installed. The current specifications and the development status are reported.

Paper Details

Date Published: 8 July 2014
PDF: 11 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91473C (8 July 2014); doi: 10.1117/12.2056184
Show Author Affiliations
Takafumi Kamizuka, The Univ. of Tokyo (Japan)
Takashi Miyata, The Univ. of Tokyo (Japan)
Shigeyuki Sako, The Univ. of Tokyo (Japan)
Ryou Ohsawa, The Univ. of Tokyo (Japan)
Kentaro Asano, The Univ. of Tokyo (Japan)
Mizuho Uchiyama, The Univ. of Tokyo (Japan)
Kazushi Okada, The Univ. of Tokyo (Japan)
Masahito Uchiyama, The Univ. of Tokyo (Japan)
Tomohiko Nakamura, The Univ. of Tokyo (Japan)
Itsuki Sakon, The Univ. of Tokyo (Japan)
Takashi Onaka, The Univ. of Tokyo (Japan)
Hirokazu Kataza, Japan Aerospace Exploration Agency (Japan)
Tsutomu Aoki, The Univ. of Tokyo (Japan)
Kiso Observatory, The Univ. of Tokyo (Japan)
Mamoru Doi, The Univ. of Tokyo (Japan)
Natsuko M. Kato, The Univ. of Tokyo (Japan)
Kimiaki Kawara, The Univ. of Tokyo (Japan)
Yutaro Kitagawa, The Univ. of Tokyo (Japan)
Kotaro Kohno, The Univ. of Tokyo (Japan)
Masahiro Konishi, The Univ. of Tokyo (Japan)
Shintaro Koshida, Pontificia Univ. Católica de Chile (Chile)
Takeo Minezaki, The Univ. of Tokyo (Japan)
Tomoki Morokuma, The Univ. of Tokyo (Japan)
Kentaro Motohara, The Univ. of Tokyo (Japan)
Takao Soyano, The Univ. of Tokyo (Japan)
Kiso Observatory, The Univ. of Tokyo (Japan)
Hidenori Takahashi, The Univ. of Tokyo (Japan)
Yoichi Tamura, The Univ. of Tokyo (Japan)
Toshihiko Tanabé, The Univ. of Tokyo (Japan)
Masuo Tanaka, The Univ. of Tokyo (Japan)
Ken'ichi Tarusawa, The Univ. of Tokyo (Japan)
Kiso Observatory, The Univ. of Tokyo (Japan)
Ken Tateuchi, The Univ. of Tokyo (Japan)
Soya Todo, The Univ. of Tokyo (Japan)
Yuzuru Yoshii, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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