Products

Standard Configuration

The model HE-3-TLSUHV-SPM cryostat is a top loading, vibration isolated He-3 cryostat designed for Scanning Probe Microscopy (SPM) applications with sample in a UHV environment. The sample is installed on the SPM and the combination is then top loaded into a UHV sample tube, which is vibration isolated from the rest of the cryostat using customized gold plated flexible OFHC copper braids.

HE-3-TLSUHV-SPM Cryostat for Scanning Probe Microscopy Mechanical Drawing

The twin He-3 inserts design provides enough cooling power to achieve the very low base temperature, while a vapor cooled superinsulated liquid helium dewar is used to further reduce the transmission of vibrations to the microscope. The system can be supplied with or without a high field superconducting magnet and optional Lambda point refrigerator.

This He-3 cryostat includes the following components:

• High efficiency superinsulated liquid helium dewar
• Twin He-3 insert assemblies
• Multiple helium level sensors
• Digital cryogen level monitors
• Charcoal sorption pumps with heaters and thermometers
• 1 K pot with thermometers
• He-3 pot with heaters and thermometers
• IVC can
• Vibration isolated UHV sample chamber
• Top loading SPM and sample probe with heater and thermometer
• Superconducting magnet 
• Magnet support with high current leads
• Operation test

Options:

• Resistive and/or superconducting wires
• Coaxial cables
• IVC tail for superconducting magnet
• Low eddy current cold finger
• Automatic temperature controller
• Magnet power supply
• Liquid helium transfer line 

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