The CS202F-DMX-20 opens up a wide range of capabilities never before possible with a closed cycle cryocooler. The CS202F-DMX-20 uses a helium exchange gas to decouple the sample from the cold tip of the DE-202 cryocooler. This prevents almost all vibration from being transmitted from the cryocooler to the sample. Scientists have demonstrated vibration levels as low as 3-5 nm with the CS202F-DMX-20.

Because the exchange gas is inherently less efficient than cooling by conduction, the base temperature of the sample will be 1-2 K higher than the cryocooler. Additionally the DMX-20 interface requires a downward orientation of the cold tip to facilitate convective cooling of the exchange gas.

The CS202F-DMX-20 is ideally suited for Mössbauer experiments and vibrationally sensitive transport measurements. For optical microscopy applications—such as Micro Raman, Micro PL, and quantum dots—please check out our CS204F-DMX-20-OM.

 

Applications

  • Mössbauer
  • Low vibration optical experiments
  • Quantum dot
  • Photoluminescence
  • Micro-Raman 
  • Micro-photoluminescence (Mirco-PL)
  • Micro-spectroscopy
  • Magneto Optical Kerr Effect (MOKE)
  • Nanoscience
  • Ellipsometry

 

Features

  • Ultra low vibrations (3-5 nm)
  • Pop-off optical block for easy in-situ sample change
  • Beryllium and Kapton windows available for Mössbauer experiments
  • Large, clear view optical windows (1.25 in.)
  • Large sample viewing angle for optical collection (F/1.4)
  • Cold tip down orientation
  • Fully customizable

 

Ultra Low Vibration Cryostat

Base Temperature
    • Cold head (DE-202AE)
    • Compressor (ARS-4HW)
    • 2 helium hoses
    • DMX-20 ultra low vibration interface
    • Aluminum vacuum shroud with 4 window ports and pop-off optical block for optical and electrical experiments
    • Nickel plated OFHC copper radiation shield
    • 2 high purity quartz windows
    • Instrumentation for temperature measurement and control:
      • 10 pin hermetic 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 hermetic feedthrough
      • 4 copper wires
    • Sample holder for optical and electrical experiments
    • Temperature controller