Mechanical cooler system for the next-generation infrared space telescope SPICA
Mechanical cooler system for the next-generation infrared space telescope SPICA
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用于下一代红外太空望远镜 SPICA 的机械冷却系统
DOI：
10.1117/12.2232602
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
H. Shibai
中科院分区：
文献类型：
--
作者：
K. Shinozaki;H. Ogawa;T. Nakagawa;Yoichi Sato;H. Sugita;T. Yamawaki;T. Mizutani;H. Matsuhara;M. Kawada;A. Okabayashi;S. Tsunematsu;K. Narasaki;H. Shibai
宇宙学和天体物理学空间红外望远镜是日本宇宙航空研究开发机构与欧空局合作的一个预备项目，将于2020年代发射。SPICA的使命是发射到日-地系统第二拉格朗日点的晕轨道上，这使得我们能够使用有效的辐射冷却与机械冷却系统相结合，以将2. 5 m级的大型红外望远镜冷却到8 K以下。最近，在欧空局/欧洲航天技术中心的并行设计设施（CDF）研究中，考虑到低温冷却望远镜在当前使命限制条件下的技术可行性，研究了一种新的系统设计，特别是有效载荷舱的热结构。然后，机械冷却器系统的热设计，日本方面负责，已检查CDF研究的基础上，并给出了适当的裕度的可行的解决方案。作为基准，4K /1 K级焦耳-汤姆逊冷却器用于冷却望远镜和焦平面仪器（FPI）的热界面。此外，两套双斯特林冷却器（2ST）用于冷却望远镜屏蔽。在这种设计中，当一个机械冷却器发生故障时，可以保持FPI的正常运行。
The Space Infrared Telescope for Cosmology and Astrophysics (SPICA) is a pre-project of JAXA in collaboration with ESA to be launched in the 2020s. The SPICA mission is to be launched into a halo orbit around the second Lagrangian point in the Sun-Earth system, which allows us to use effective radiant cooling in combination with a mechanical cooling system in order to cool a 2.5m-class large IR telescope below 8K. Recently, a new system design in particular thermal structure of the payload module has been studied by considering the technical feasibility of a cryogenic cooled telescope within current constraints of the mission in the CDF (Concurrent Design Facility) study of ESA/ESTEC. Then, the thermal design of the mechanical cooler system, for which the Japanese side is responsible, has been examined based on the CDF study and the feasible solution giving a proper margin has been obtained. As a baseline, 4K / 1K-class Joule-Thomson coolers are used to cool the telescope and thermal interface for Focal Plane Instruments (FPIs). Additionally, two sets of double stirling coolers (2STs) are used to cool the Telescope shield. In this design, nominal operation of FPIs can be kept when one mechanical cooler is in failure.
下一代红外天文任务 SPICA 的新型低温系统
DOI：
10.1117/12.2231613
发表时间：
2016
期刊：
Proceedings of the SPIE
影响因子：
--
作者：
Ogawa;H.; Nakagawa;T.; Matsuhara;H.; Shinozaki;K.; Goto;K.; Isobe;N.; Kawada;M.; Mizutani;T.; Sato;Y.; Sugita;H.; Takeuchi;S.; Yamawaki;T.; Shibai;H.
通讯作者：
H.