Journal Article Development of 1K-class Joule-Thomson cryocooler for next-generation astronomical mission

Sato, Yoichi  ,  Sawada, Kenichiro  ,  Shinozaki, Keisuke  ,  Sugita, Hiroyuki  ,  Mitsuda, Kazuhisa  ,  Yamasaki, Noriko Y.  ,  Nakagawa, Takao  ,  Tsunematsu, Shoji  ,  Ootsuka, Kiyomi  ,  Narasaki, Katsuhiro  ,  佐藤, 洋一  ,  澤田, 健一郎  ,  篠崎, 慶亮  ,  杉田, 寛之  ,  満田, 和久  ,  山崎, 典子 Y.  ,  中川, 貴雄  ,  恒松, 正二  ,  大塚, 清見  ,  楢崎, 勝弘

74pp.47 - 54 , 2016-03 , Elsevier
This paper reports on the development of a 1K-class Joule-Thomson (JT) cryocooler in Japan for application to upcoming next-generation astronomy missions. In this development, engineering models (EMs) were designed and manufactured for verification tests. The survival of the models in the mechanical and thermal vacuum environment tests of the JT compressors was proven to be possible with stable compression performance. In addition, the electromagnetic noise and disturbance force associated with the JT compressors were evaluated. Gas analysis showed that the estimated total amount of CO2 gas contaminant was less than the getter capacity for the required lifetime. A nominal cooling power of 10 mW at 1.7 K was verified using the EM test units.
Meeting Information: 2015 Space Cryogenics Workshop (June 24-26, 2015, Phoenix, AZ Hosted by NASA Glenn Research Center), Cleveland, OH, USA

Number of accesses :  

Other information