Open Cycle Cryostats Liquid Helium or LN2

Cooltran Open Cycle Optical Cryostats

<4K to 800K temperature range, sample in vacuum



Features:

  • The Cooltran is a continuous gas flow, shielded vacuum insulated transfer line mated to a flexible cryostat cold end designed for use with a variety interfaces & applications.
  • System operates with Liquid Helium or LN2.  Cryogen flow from dewar is controlled by both a needle valve at the dewar and/or exhaust gas flow meter to optimize cryogen use.
  • Applications    
          - Optical Spectroscopy
          - Narrow Gap Magnet
          - Electrical non optical
          - UHV & manipulators
          - FTIR, Raman , Matrix Isolation
          - X-Ray diffraction
  • All Systems are fully tested assembled prior to shipment and detailed performance test data is supplied.  The cooler is also tested bare (before installing the interface) and this information is supplied.

X-Ray Diffraction


CoolTran Specifications

Temperature Range Helium                               <3K - 500K
Temperature Range LN2                                    77K – 500K
Capacity                                                             1W @4.2K
Cool Down Time                                                <20min. to 4.2K
Cryogen usage                                                   1.1 L/hr
Cryostat Weight                                                 0.8kg (1.7lb)
6’ Transfer line Wt.                                            3kg (6.6lb)
All specifications are Typical

Options:

  • Transfer line available in 6, 8 & 10 lengths
  • High temperature Interfaces to 800K
  • Temperature controllers
  • Standard instrumentation includes two
    SI diodes, cartridge heater and 19 pin connector
  • Other sensors and wiring configurations available (SMA, BNC, extra wires, additional ports, etc.)
  • Gold plated copper sample holders and radiation shields
  • Vacuum enclosure is internally electro polished  for cleaner operation and improved vacuum

Narrow Gap - Optical



Non Optical