CS202B
The ARS manufactured CS202B is a true UHV cold head (10-11 Torr) where all of the rubber o-ring seals have been replaced with welded joints and metal seals. A CF flange is welded directly to the cryocooler.
Systems built around a CS202B cold head are bakeable to 80 C. The 10 K CS202AB cryostat 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 extra cooling power of the CS204*B comes in handy when working with long cold tip extensions.
Applications
UHV
Surface science
UHV manipulator for XYZ motion
Photoemission spectroscopy
Typical Configuration
Cold head (DE-202AB)
2 helium hoses
True UHV welded stainless steel instrumentation skirt with 6 in. rotatable CF flange
Nickel plated OFHC copper radiation shield terminating 0.125" short of the cold tip
Instrumentation for temperature measurement and control:
10 pin UHV feedthrough
36 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
Features
True UHV (10-11 Torr)
Bakeable
Open sample space
Optional cold tip extensions
Cryogen free
Operation in any orientation
Fully customizable
Options & Upgrades
4.5 and 8 in. rotatable CF flanges available
4 K cold head (0.1 W @ 4.2 K)
5.5 K cold head (1 W @ 10 K)
Turbo upgrade for faster cooldown times
Custom temperature sensor configuration (please contact our sales staff)
Custom wiring configurations (please contact our sales staff)
Sample holder upgrades (custom sample holders available)