The 77K vacuum cryostat is mainly sed for testing/ characterisation of flight CCDs. The cryostat consists of an outer stainless steel vacuum vessel with a stainless steel liquid nitrogen vessel mounted inside.
- Dimensions: 0.45m diameter by 0.8m (H).
- Hardware mounting area: 0.4m diameter by 0.6m height
- Base vacuum pressure: 5 x 10-5 mBar
- Temperature range: -150˚C to +80˚C
- Temperature control: Closed loop PID control, ±0.2˚C
- Temperature measurement: 8 x 4 wire PT100 sensors
- Temp/pressure logging: 8 channel plus pressure logging
- Electrical feedthroughs: Various D-sub
