AKARI(ASTRO-F) is the second infrared astronomy mission of the JAXA/ISAS,and was launched by Japanese M-V rocket in2006 into a sun-synchronous polar orbit with altitude of 700km.

Hybrid Cryogenic System
| Superfluid Liquid Helium |
| Double-stage Stirling Cooler × 2 |
|
Requirements for AKARI(ASTRO-F) Cryostat
| 1)Cooling Temperature |
| Far infrared Detector: 1.8K |
| Infrared Camera(IRC): ≤7K |
| Telescope: ≤7K |
| 2)Mission Lifetime |
| Lifetime of LHe(170L): 1.6years |
|
|