JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
SA4618302.pdf248.83 kB
titleHII/L2 Mission Cryogenic System
Author(eng)Masayuki, HIRABAYASHI; Makoto, KYOYA; Masahide, MURAKAMI; Toshio, MATSUMOTO
Author Affiliation(eng)Sumitomo Heavy Industries, Ltd.; Sumitomo Heavy Industries, Ltd.; Institute of Engineering Mechanics and Systems, University of Tsukuba; Institute of Space and Astronautical Science
Issue Date2000-12
PublisherInstitute of Space and Astronautical Science
Publication titleThe Institute of Space and Astronautical Science repot. S.P.
Start page323
End page330
Publication date2000-12
AbstractThe HII/L2 mission (SPICA) is a future mission to launch a large infrared observatoryto the L2 orbit by an H-IIA rocket. A unique feature of its cryogenic system is a `warm launch"system using radiative cooling and mechanical cooling in orbit to cool down its detectors andmirrors to 4.5K. By adopting this system, we can remove the heavy vacuum shell and the heliumtank needed for traditional cryostats, and reduce the weight of the spacecraft dramatically.
Document TypeDepartmental Bulletin Paper
JAXA Category宇宙科学研究所

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