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LT4 Helium Flow Cryostat

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The LT4-DMX-1AL is our lowest cost liquid flow cryostat for optical and electrical experiments.

The LT4 works with either liquid helium or liquid nitrogen. The LT4 utilizes a standard transfer line and cold tip. If you need lower vibrations, take a look at the high performance LT3-WMX-1.

Applications

  • Optical: UV, VIS, IR
  • Electro-optical
  • Magneto-optical
  • Resistivity/Hall effect
  • High frequency electrical
  • Diamond anvil cell
  • DIP
  • Liquid samples
  • Non-optical
  • Thermal
  • Electrical
  • Magnetic susceptibility
  • Matrix isolation
  • Mossbauer

Features

 

Typical Configuration

 

Options & Upgrades

  • Liquid helium flow
  • Low cost aluminum construction
  • Large, clear-view optical windows (1.25 in)
  • Large sample viewing angle for optical collection (F/1)
  • 4.2 K liquid helium operation
  • 0.75 LL/hr liquid helium consumption at 4.2 K
  • Liquid nitrogen comparable (77 K operation)
  • Fully customizable

 

  • Cold head (LT4-DMX-1AL)
  • Liquid helium transfer line
  • Bolt on aluminum instrumentation skirt
  • Dewar adapter
  • Low cost aluminum vacuum shroud for optical and electrical experiments (DMX-1AL)
  • Aluminum radiation shield
  • 2 high purity quartz windows
  • Instrumentation for temperature measurement and control:
    • 10 pin feedthrough
    • 36 ohm thermofoil heater
    • Silicon diode sensor curve matched to (± 0.5 K) for control
    • Silicon diode sensor curve matched to (± 0.5 K) with 4 inch 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