Vibration Isolated Cryogenic Cooler

The CCR-XG cryogenic coolers from Janis Researcher is primarily designed to reduce vibrations at the sample and at the same time uses a closed cycle refrigerator and provides a sample in vacuum environment.

The Model CCS-100-XG/204N (10 K) and Model SHI-4XG-5 (<5 K) cryogenic coolers replace the standard optical closed cycle sample in vacuum systems: CCS-100/204 and SHI-4-1, respectively. These systems are capable of separating the vibrations of the cold head from the sample by using rubber bellows and helium exchange gas.

The sample is mounted to a stage not connected to the cold head, but still can be cooled through helium exchange gas. This set up allows the sample to cool and at the same time reduces the vibrations. The rubber bellows helps to fix the body of the cryostat to the cold head. When the cryostat and the cold head are supported independently, very limited vibrations reach the body of the cryostat through the rubber bellows.

Key Features

The main features of the Model CCS-100-XG/204N are as follows:

  • Initial cool down time: < 2 hours to 10K
  • Temperature range: <8K - 300K (at sample mount)
  • Cooling water requirements: 2.7 liters/min @ 4-270C
  • Power requirements: Single Phase: 50Hz: 200, 220, 230/240V (±5%) 60Hz: 208/230V (±5%)
  • Exchange gas vibration isolation design with flexible rubber bellows linking cold head to cryostat
  • Exchange gas valve manifold to pump out and flow helium exchange gas
  • Outer vacuum shroud with evacuation valve, electrical feedthroughs, and safety pressure relief valve
  • Heater, optical sample holder, and temperature sensor.
Janis Research Cryogenic Applications

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