The CS-210B is ARS’ second 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 CS-210AB 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 CS-210B 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