The ARS manufactured CS210B is our most powerful true UHV cold head (10-11 Torr). As with our other true UHV cryocoolers, all of the rubber o-ring seals have been replaced with welded joints and metal seals. A CF flange is directly welded to the cryocooler.

These true UHV systems are bakeable to 80 C, and the 10 K CS210AB is bakeable to 200 C if the displacer is removed. (Special training required.)

Cold tip extensions are available to put the sample right where it is needed in the chamber.

The large CS210B also has the option of flanged heat stations to provide solid thermal contact for larger samples and cold stages.


  • UHV
  • Surface science
  • Photoemission spectroscopy
  • Nozzle cooling



Typical Configuration


Options & Upgrades

  • True UHV (10-11 Torr)
  • Maximum cooling power
  • Bakeable
  • Open sample space
  • Optional cold tip extensions
  • Cryogen free
  • Operation in any orientation
  • Fully customizable


  • Cold head (DE-210AB)
  • Compressor (ARS-10HW)
  • 2 helium hoses
  • True UHV welded stainless steel instrumentation skirt with 8 in. rotatable CF flange
  • Nickel plated OFHC copper radiation shield terminating 0.125 in. short of the cold tip
  • Instrumentation for temperature measurement and control:
    • 10 pin UHV feedthrough
    • 50 ohm thermofoil heater
    • Silicon diode sensor curve matched to (± 0.5 K) for control
    • Calibrated silicon diode sensor (±12 mK) with 4 in. free length for accurate sample measurement
  • Wiring for electrical experiments:
    • 10 pin feedthrough
    • 4 copper wires
  • Sample holder for optical and electrical experiments
  • Temperature controller