Modifications to the MIRI cryocooler design to provide significant lift in the 2K to 4K range

被引：10
|
作者：
Petach, M. [1 ]
Michaelian, M. [1 ]
Nguyen, T. [1 ]
机构：
[1] Northrop Grumman Aerosp Syst, One Space Pk, Redondo Beach, CA 90278 USA
来源：
ADVANCES IN CRYOGENIC ENGINEERING | 2020年 / 755卷
关键词：
D O I：
10.1088/1757-899X/755/1/012018
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high Technology Readiness Level cryocooler with significant cooling in the 2K to 4K regime will enable a variety of missions ranging from large infrared space telescopes to superconducting and quantum applications. The cryocooler for the MIRI instrument on JWST was designed for operation at 6K, and with relatively minor changes this design can achieve significant lift in the 2K to 4K region. This paper provides curves of predicted lift vs. power for a variety of operating temperatures, based on the model anchored by tests of the MIRI cooler. The modifications are described, and their mass impacts are estimated. These mass and performance estimates enable payload and mission planners to explore new mission classes.
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页数：8
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