Cryogen-free cryostats

1.5 K continuous CCR cryostat features

• 1.5 K to 300 K operating range
• Cryogen-free operation
• Top-loading static helium thermal exchange gas configuration
• Optimized two-loop temperature control using calibrated temperature sensors
• Can be fitted with optical or non-optical tails
• The optical version has 4 orthogonal window sets for measurements from UV to IR
• Optional cabling for electrical measurements
• Choice of cryocooler to match performance and budget requirements
• Neutron scattering model is available
• Easy sample access

4 K CCR cryostat features

• 2.5 K to 325 K (500 K and 800 K options) operating range (model dependent)
• Cryogen-free operation
• Top-loading static helium thermal exchange gas or sample-in-vacuum configuration
• Optimized two-loop temperature control using calibrated temperature sensors
• Can be fitted with optical or non-optical tails
• The optical version has 4 orthogonal window sets for measurements from UV to IR
• Optional cabling for electrical measurements
• Choice of cryocooler to match performance and budget requirements
• FTIR, Mössbauer, vibration-isolated, and neutron models are available
• Easy sample access

10 K CCR cryostat features

• 7 K to 325 K (500 K and 800 K options) operating range (model dependent)
• Cryogen-free operation
• Top-loading static helium thermal exchange gas or sample-in-vacuum configuration
• Optimized two-loop temperature control using calibrated temperature sensors
• Can be fitted with optical or non-optical tails
• The optical version has 4 orthogonal window sets for measurements from UV to IR
• Optional cabling for electrical measurements
• Choice of cryocooler to match performance and budget requirements
• Mössbauer, VSM, vibration-isolated, and ultra-high vacuum models are available
• Easy sample access
  

Standard system features:

• Top sample loading and exchange at all temperatures
• Effortless sample rotation and translation about the vertical axis at all temperatures, with options for rotation about a horizontal axis
• Field-independent thermometry
• The SuperVariTemp system, with provision for a temperature control thermometer at the heat exchanger
• Vapor cooled/superconducting high current magnet leads
• Superconducting magnets with persistent mode operation providing field stabilities of 20 ppm/h
• Carefully designed magnet support inside the helium reservoir, with optical access through the Dewar vacuum space (OptiMag and SuperOptiMag systems)
• Built-in superconducting liquid helium level sensors, providing continuous or timed level monitoring
• Readily accessible and interchangeable sample chambers

Complete systems include:

• Programmable magnet power supply with computer interface and bi-polar operation
• Temperature controller with field independent thermometry
• Liquid helium transfer lines
• Cryogenic Hall probe and gaussmeter
• Automatic nitrogen filling mechanism
• Vacuum pumping stations