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Japan Aerospace eXploration Agency(JAXA)
Japan Aerospace eXploration Agency(JAXA)
Japan Aerospace eXploration Agency(JAXA)
Japan Aerospace eXploration Agency(JAXA)
Japan Aerospace eXploration Agency(JAXA)
Japan Aerospace eXploration Agency(JAXA)
出版者
日本航空宇宙学会(JSASS)
出版者(英)
The Japan Society for Aeronautical and Space Sciences (JSASS)
雑誌名
第58回宇宙科学技術連合講演会講演集
雑誌名(英)
Proceedings of 58th Space Sciences and Technology Conference
"The next-generation infrared telescope mission SPICA enables high sensitive infrared astronomy covering 20–210 m of IR wavelength with a 3-m-class-diameter cryogenic telescope which is cooled down to 6K. The cooling system for the SPICA telescope and the focal plane instruments consists of mechanical cryocoolers and passive radiative cooling system without no cryogen. Therefore, high reliability and cooling performance for mechanical cryocoolers based on the existing ones is technically essential. The 20K double-staged Stirling cooler and the 4K-class Joule Thomson cooler is almost completed in the EM (Engineering Model) development phase and the FM (Flight Model) fabrication and verification test phase is being conducted in the ASTRO-H (2015) project, while the 1K-class Joule Thomson cooler is in the EM fabrication and verification test phase in the framework of the JAXA strategic component program. This paper describes the latest development status of the SPICA mechanical cryocoolers."