Advanced Research Systems

Closed Cycle Cryostat - 77K Orca

The Orca Mixed Gas Joule Thompson cooler uses a unique nonflammable non-toxic gas mixture to cool down to 80 K (-193 C) without the use of liquid cryogens. The Orca is a low cost, low maintenance, solution for replacing cumbersome liquid nitrogen systems that require constant refilling. The Orca cryocoolers have a variety of different gas mixtures available to shift the cooling power of the system into different temperature bands.


Orca Cooler 77K


  • Optical
  • Electro-Optical
  • Raman
  • UV / Vis / IR and FTIR Spectroscopy
  • Electro & Photoluminescence
  • Resistivity/Hall Probe Experiments
  • Diamond Anvil Cel
  • Liquid Samples
  • Magneto-Optica
  • Non-Optical
  • Thermal Electrical and Magnetic Susceptibility


  • Cryogen Free
  • Nonflammable Non-Toxic Mixed Gas Refrigerant
  • JT-Cooler, No moving parts in the cold head
  • Low Vibration
  • Operates in any orientation
  • AIr Cooled Compressor


Orca Cooler 77K Joule Thompson System
MR-80 Data Sheet.pdf
Adobe Acrobat Document 169.6 KB