Model HE-3-SSXGAS Insert

The model HE-3-SSXGAS insert is designed for standard sample loading with sample in exchange gas.  The sample chamber is located at the bottom of the He-3 pot and exchange gas is introduced into the sample chamber to aid in cooling down the sample.  A model HE-3-XGHS mini-exchange gas handling system is usually included at the top of the insert to provide the exchange gas required for the experiment.  The design minimizes the cost of the expendable exchange gas for each run to approximately $1.00 (depending on geographic location).  This He-3 insert is especially suited for experiments with very fragile samples that cannot be bolted tightly to the sample holder.

This He-3 insert includes the following components:

• Charcoal sorption pump with heater and thermometer
• 1 K pot with thermometer
• He-3 pot with heater and thermometer
• Permanently stored He-3 gas
• IVC can
• Sample chamber with exchange gas
• Mini-exchange gas handling system
• Operation test

• Resistive and/or superconducting wires
• Coaxial cables
• IVC tail for superconducting magnet
• Clear shots to sample area
• 1 K cold plate
• Low eddy current cold finger
• Helium storage dewar
• Vapor cooled helium dewar
• Liquid nitrogen shielded dewar
• Automatic temperature controller
• Superconducting magnet
• Magnet support with high current leads
• Magnet power supply
• Helium level sensor and read out
• Nitrogen level sensor and read out
• Liquid helium transfer line

Table of Contents

Pages

Standard He-3 Cryostats

Special He-3 Cryostats