Development of MIMIZUKU: a mid-infrared multi-field imager for 6.5-m TAO telescope
Development of MIMIZUKU: a mid-infrared multi-field imager for 6.5-m TAO telescope
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MIMIZUKU的开发：用于6.5米TAO望远镜的中红外多视场成像仪
DOI：
10.1117/12.926771
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
T. Handa
中科院分区：
文献类型：
--
作者：
T. Kamizuka;T. Miyata;S. Sako;Tomohiko Nakamura;K. Asano;M. Uchiyama;K. Okada;T. Onaka;I. Sakon;H. Kataza;Y. Sarugaku;Y. Yoshii;M. Doi;K. Kohno;K. Kawara;Masuo Tanaka;K. Motohara;T. Tanabé;T. Minezaki;T. Morokuma;Y. Tamura;T. Aoki;T. Soyano;K. Tarusawa;N. Kato;M. Konishi;H. Takahashi;S. Koshida;K. Tateuchi;T. Handa
东京大学阿塔卡马天文台（TAO）计划建在智利Chajnantor山顶（海拔5640米）。MIMIZUKU（用于凝视未知宇宙的中红外多场成像仪）是6.5 m TAO望远镜的中红外成像仪（视场：1' x 1'- 2' x 2'）和光谱仪（Δλ/λ: 60-230），覆盖波长范围为2-38 μm。MIMIZUKU有一个独特的设备，称为现场堆叠器（FS），能够同时观察目标和参考物体。同时性有望提高光度测量精度，实现长期监测观测。本文介绍了MIMIZUKU的发展现状。MIMIZUKU的FS和低温恒温器已经制作完成并正在测试中。带有28面反射镜的冷光学（550毫米x 750毫米x 2层）已经建成。对镜的定位精度为0.1 mm，角精度为0.1°。对镜的光学性能进行了评价，在λ <8 μm处获得了衍射极限像，在2 λ ~2μm处获得了足够的紧凑像（r <2 pix=0.22”）。在冷光学中，采用无间隙齿轮传动系统，即使在低温环境下也能很好地工作。采用超精密切割技术制备了硅、锗两种金属材料的格栅。结果表明，它们的表面粗糙度、光栅常数和火焰角基本符合设计值。
TAO (The University of Tokyo Atacama Observatory) is planned to be constructed at the summit of Co. Chajnantor (5640 m altitude) in Chile. MIMIZUKU (Mid-Infrared Multi-field Imager for gaZing at the UnKnown Universe) is a mid-infrared imager (Field of View: 1' x 1'- 2' x 2') and spectrometer (Δλ/λ: 60-230) for the 6.5-m TAO telescope, covering the wavelength range of 2-38 μm. The MIMIZUKU has a unique equipment called Field Stacker (FS) which enables the simultaneous observation of target and reference object. The simultaneity is expected to improve photometric accuracy and to realize long-term monitoring observations. The development status of the MIMIZUKU is reported in this paper. The FS and the cryostat of the MIMIZUKU have been fabricated and under testing. The cold optics (550 mm x 750 mm x 2 floors) with 28 mirrors has been constructed. The mirrors were aligned with the positional precision of 0.1 mm and the angular precision of 0.1 deg. The evaluated optical performance is that the diffraction-limited image at λ <8 μm and the enough compact image (r <2 pix=0.22") at 2 λ ~2μm can be obtained. In the cold optics, the drive systems with backlash-less gears are employed and work well even in cryogenic environment. The grisms made with silicon and germanium have been fabricated by ultraprecision cutting. It was found that their surface roughness, grating constant, and blaze angle almost measure up to the designed values.
东京大学 DIMM：用于阿塔卡马现场测试的便携式 DIMM
DOI：
--
发表时间：
2004
期刊：
SPIE 5382
影响因子：
--
作者：
Motohara;K.;Doi;M.;Soyano;T.;et al.
通讯作者：
et al.