CS204B 

The ARS manufactured CS204B is a medium cooling power, 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.

This true UHV system is bakeable to 80 C, and the 10 K CS204AB 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.

Applications

• UHV

• Surface science

• UHV manipulator for XYZ motion

• Photoemission spectroscopy

• Nozzle cooling

Typical Configuration

• Cold head (DE-204AB)

• Compressor (ARS-4HW)

• 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 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 for 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

• UHV low vibration interface (secondary product image)

• 4.5 and 8 in. rotatable CF flanges available

• 4 K cold head (0.2 W @ 4.2 K)

• 5.5 K cold head (3 W @ 10 K)

• Turbo upgrade for faster cooldown times

• 450 K high temperature interface

• 800 K high temperature interface

• Custom temperature sensor configuration (please contact our sales staff)

• Custom wiring configurations (please contact our sales staff)

• Sample holder upgrades (custom sample holders available)