Continuous uninterrupted operation as low as <3 K
GM closed cycle refrigeration systems are used when low temperatures are needed with a large heat load present. These systems are typically larger and used for cooling optics plates, systems with large windows and systems that have electronics that dissipate large heat loads.
Compared to Pulse Tube refrigerator systems GM systems are less expensive, cool larger heat loads, can be operated in any orientation but typically transmit more vibration to the cold work surface (on the order of 10-20 microns). For this reason, we design our GM systems with bellows interfaces and other vibration dampening components.
GM cryostats have radiation shields that are typically cooled to 50 K by the first stage of the refrigerator and the cold work surface is cooled to levels as low as 3 K by the second.
Applications:
- Astronomical cameras
- Cryogenic optics benches
- Electronics/detector cooling
Features:
- Operating temperature range: as low as 3 K
- Closed cycle operation
- Unrestricted hold time
- Does not require LN2 or LHe
- Vibration isolation system
- Optional dewar carts with 360 degree rotation and support up to 1000 lbs.
- Highly customizable configuration