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HE-3-TLSUHV-SPM Cryostat for Scanning Microscope Probe - Top Sample Loading in UHV Environment

Overview

Click button below to enlarge view of HE-3-TLSUHV-SPM cryostat for scanning probe microscopy

The model HE-3-TLSUHV-SPM cryostat is a top loading, vibration isolation He-3 cryostat designed for Scanning Probe Microscopy (SPM) applications with sample in an ultra high vacuum (UHV) environment.

 

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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.

Click button below to enlarge view of mechanical drawing for HE-3-TLSUHV-SPM cryostat for scanning probe microscopy, Janis Research, ultra low temperatureEnlarge

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

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Specifications

Performance Specification:

Base temperature: 320 mK
Holding time at base temperature: 40 hours
Sample space: 2.0"

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