PRODUCTS & SERVICES
20K Stirling Cryocoolers
LB2ST is a two-stage Stirling cryocooler specialized for space. It can be used to cool heat shields and pre-cool JT circuits. Employing a special mechanism (patented) to achieve a long service life, this cryocooler was adopted by the X-ray astronomy satellite Hitomi (ASTRO-H) that was launched in 2016, and will be equipped on the X-Ray Imaging and Spectroscopy Mission scheduled to be launched in 2021.
| Item | Specifications | Note |
|---|---|---|
| Method | Two-stage Stirling cycle cryocooler | Compressor, cold head split type |
| Cooling capacity | Second stage 200mW at 20K First stage 1000mW at 100K |
After installation at 23℃ |
| Environmental temperature | -20 to 23℃ | — |
| Power consumption | 90W | Excl. drive electronics |
| Service life | > 3 years | — |
| Weight | 9.5 kg | Excl. drive electronics |
Infrared astronomy satellite Akari (ASTRO-F) |
SMILES (equipped on the International Space Station) |
X-ray astronomy satellite Hitomi (ASTRO-H) |
X-Ray Imaging and Spectroscopy Mission (XRISM) |
