Placed within the chamber (and operated as the coldest element), the cold finger can augment a HV/UHV pumping system improving chamber pumpdown time by attracting outgassing molecules.


  • Cryo finger for 77K (-196C) operation, with getter or carbon sleeve
  • 1.5” OD x up to 12” on CF450 flange, or
  • 3” OD x up to 18” on CF600 flange
  • 1/2″ JIC SS braided Cooling supply Lines
  • Cryogenic Connectors
  • Thermocouple
  • CF flange
  • Assembly and Test


  • LN2 supply
  • Thermocouple readout
  • Mating CF flange on chamber


  • Temperature control

See also: Cryostat Cold Fingers and Sample Holders in Abbess Refrigeration