Cooling performance of Joule Thomson coolers in 300 K -50 mK cryochain demonstration for ATHENA X-IFU

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Shinozaki, K.^1 ; Tokoku, C.^1 ; Yamamoto, R.^2^8 ; Minami, Y.^3 ; Yamasaki, N.Y.^2 ; Mitsuda, K.^2 ; Nakagawa, T.^2 ; Duval, J.M.^1 ; Prouvé, T.^4 ; Charles, I.^4 ; Lé Du, M.^1 ; Andre, J.^5 ; Daniel, C.^5 ; Linder, M.^6 ; Tsunematsu, S.^7 ; Kanao, K.^7 ; Otsuka, K.^7 ; Narasaki, K.^7

R and D Directorate, JAXA, 2-1-1, Sengen Ibaraki, Tsukuba

305-8505, Japan^1

Institute of Space and Astronautical Science, JAXA, 3-1-1, Yoshinodai, Chuo-ku, Sagamihara city, Kanagawa

252-5210, Japan^2

High Energy Accelerator Research Organization (KEK), 1-1 Ohoc Ibaraki, Tsukuba

305-0801, Japan^3

Univ. Grenobe Alpes, CEA, INAC, SBT, Grenoble

F-38000, France^4

CNES Toulouse, Cedex 4

F-31055, France^5

ESA-ESTEC, Noordwijk, Netherlands^6

Sumitomo Heavy Industries, Ltd., 5-2 Soubiraki-cho, Niihama city, Ehime

792-8588, Japan^7

Present Address: National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Ibaraki, Tsukuba

305-8560, Japan^8

关键词: Astronomical mission;    Cooler systems;    Cooling performance;    Core technology;    Demonstration Tests;    Joule-Thomson coolers;    Pulse tube coolers;    Stirling coolers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012069/pdf
DOI  :  10.1088/1757-899X/502/1/012069

来源: IOP

【 摘 要 】

The cooler system for the ESA X-ray astronomical mission ATHENA X-IFU instrument is being studied, and a demonstration cooling test has been performed by integrating the mechanical coolers (double-stage Stirling cooler = 2ST, 4K-class and 1K-class Joule Thomson coolers = 4K-JT and 2K-JT) provided by JAXA with the coolers (15K-class pulse tube cooler = PT15K and 50mK hybrid cooler) provided by CEA into the cryostat. This paper describes the measured cooling performances of these Joule Thomson coolers under successful integration with the 50mK hybrid cooler and the pulse tube cooler. The demonstration test is proceeded under the international framework of ESA Core Technology Program (CTP) for a detector cooling system demonstration for ATHENA, and should provide valuable insight for other future space missions such as SPICA and LiteBIRD.Published under licence by IOP Publishing Ltd.