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Recirculating gas coolers

RGC4 recirculating gas ooler

Standard features:

  • Pulse tube or GM cooler
  • Cryocoolers with 1 W, 1.2 W, 1.5 W or 2 W cooling at 4.2 K are available
  • Compact tabletop size
  • Adjustable working distance
  • Multipin electrical feedthrough
  • Control heater and thermometer
  • Integrated gas handling system
  • Dry scroll pump for gas circulation
Base temperature of ST-500 microscopy cryostat cooled by RGC4 system
Lake Shore — environment by JANIS

The SuperTran product line has long been an industry standard for continuous flow cryogenic systems. Now, with the introduction of the recirculating gas cooler, these cryostats can be cooled without the need for liquid cryogens.

  • All the flexibility and convenience of a continuous flow cryostat without liquid helium
  • Fast sample change without warming up the RGC4 cooler
  • Excellent thermal performance
  • Low vibration – vibration data available upon request
  • Compatible with most existing SuperTran cryostats
  • Order a new cryostat with a transfer line and choose to operate using LN2, LHe, or cryogen-free

A closed loop of helium gas is cooled by a cryocooler and the cold helium gas travels to the cryostat through a flexible vacuum insulated transfer line. The gas cools the sample mount and thermal radiation shield before returning to the cryocooler for continuous recirculation. Samples may be changed without warming up the RGC4, allowing fast turnaround times. When paired with a Lake Shore ST-500 cryostat, the combination is an ultra-stable cryogenic microscopy platform, cooling samples and devices to below 4 K without the use of liquid helium.

Typical applications include micro-PL, micro-Raman, and high spatial resolution imaging. The Model RGC4 pulse tube-cooled system can also be used with the ST-100 optical workhorse, the ST-200 non-optical system, the ST-300 compact unit for use in a magnet, the ST-400 UHV configuration, the ST-500 microscopy configuration, and the ST-500 based probe station.

Optional equipment

  • Piezo positioning stages
  • Short working distance
  • Integrated objective lens
  • Large sample volume
  • Permanent and rare earth magnets
  • Diamond anvil cell (DAC)
  • UHV sample environment
  • RF or DC electrical feedthroughs and wires
  • Alternative window materials
  • Transmission geometry
  • Integration with spectrometers
  • Compact geometry