Revised specifications and current development status of MIMIZUKU: the mid-infrared instrument for the TAO 6.5-m telescope
Revised specifications and current development status of MIMIZUKU: the mid-infrared instrument for the TAO 6.5-m telescope
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MIMIZUKU的修订规格和当前开发状态：TAO 6.5米望远镜的中红外仪器
DOI：
10.1117/12.2056184
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
et al
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文献类型：
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作者：
T. Kamizuka;T. Miyata;S. Sako;R. Ohsawa;K. Asano;M. Uchiyama;K. Okada;M. Uchiyama;T. Nakamura;I. Sakon;T. Onaka;H. Kataza;T. Aoki;M. Doi;Y. Yoshii;et al
MIMIZUKU 是 TAO 6.5 米望远镜的第一代中红外仪器。它以其独特的能力、宽波长覆盖范围和精确的校准能力，挑战证明尘埃的起源和行星的形成。宽波长覆盖范围 (2–38 im) 通过三个可切换相机 NIR、MIR-S 和 MIR-L 实现。相机规格已修订。决定在 NIR 相机中安装 5im 截止的 HAWAII-1RG。 MIR-L 相机的光学设计经过修改，以避免探测器饱和。其最终F值从5.2扩展至10.5。经过这些修改，NIR 和 MIR-L 相机的视场分别变为 1.2’× 1.2’ 和 31”× 31”。每个相机的灵敏度是根据修订后的规格估算的。精确标定是通过“Field Stacker”机构实现的，可以在不同视场同时观察目标和标定物。对于 Field Stacker 至关重要的低温恒温器的上下运动 (∼ 1 t) 已被确认具有足够的速度 (4 mm/s) 和位置精度 (∼ 50 im)。现场堆垛机的控制面板已完成，控制器已成功安装。报告了当前规格和开发状态。
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 im) is achieved by three switchable cameras, NIR, MIR-S, and MIR-L. The specifications of the cameras are revised. A 5im-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 im). A control panel for the Field Stacker is completed, and its controllers are successfully installed. The current specifications and the development status are reported.