Janis Research, cryogenics, cryostats

3HELIUM SYSTEMS

Model HE-3-TLOSL Cryostat
Description:

The model HE-3-TLOSL cryostat has both optical access to the sample as well as top loading of the sample into the cryostat.  This allows the sample to be removed from and introduced into the He-3 chamber, while the cryostat is cold.  Optical windows are installed on the vacuum shroud, the radiation shields, and the He-3 sample chamber.  This permits a light beam to travel through the cryostat vacuum, without passing through the shielding cryogenics (nitrogen and He-4). The system includes a sample probe and a vac-lock system with gate valve, plus an external gas handling system for safe insertion and removal of the sample in and out of the He-3 chamber.

This He-3 cryostat includes the following components:

  • Charcoal sorption pump with heater and thermometer
  • 1 K pot with thermometer
  • Top loading sample probe with vac-lock system
  • Thermometer and heater on the sample probe
  • Optical windows
  • External gas handling system with stored He-3 gas
  • Operation test
 Model HE-3-TLOSL He-3 cryostat by Janis Research, cryogenics

Options:

  • Resistive and/or superconducting wires
  • Coaxial cables
  • Fiber optical cables
  • IVC tail for superconducting magnet
  • Low eddy current cold finger
  • Liquid nitrogen shielded dewar
  • Automatic temperature controller
  • Superconducting magnet
  • Magnet support with high current leads
  • Magnet power supply
  • He-3 pot with heater and thermometer
  • Helium level sensor and read out
  • Nitrogen level sensor and read out
  • Liquid helium transfer line
Performance Specification:
Base Temperature: 400 mK
Holding Time at Base Temperature: 24 hours
Sample Space: 0.5" - 1.0"
Temperature Range: 0.40 K - 80 K
Mechanical Drawing of Model HE-3-TLOSL He-3 cryostat by Janis Research, cryogenics

Table of Contents

Pages
Introduction 1

Standard He-3 Cryostats
HE-3-SSV Insert, Standard Sample Loading, Sample in Vacuum 2
HE-3-SVSD Insert, Standard Sample Loading, Sample in Vacuum for He-4 Storage Dewar 3
HE-3-SSXGAS Insert, Standard Sample Loading, Sample in Exchange Gas 4
HE-3-XGHS Mini-Exchange-Gas Handling System 5
HE-3-SOSV Cryostat, Standard Sample Loading, Optical, Sample in Vacuum 6
HE-3-SOSV-S Cryostat, Standard Sample Loading, Optical, Sample in Vacuum 7
HE-3-SVC Cryostat, Standard Sample Loading, Sample in Vacuum, Compact for Detector Application 8
HE-3-CCR-SSV Cryostat, Standard Sample Loading, Sample in Vacuum, Cryogen-free 9
HE-3-SSV-CF Cryostat, Standard Sample Loading, Sample in Vacuum, Continuous Flow 10
HE-3-TLSL Cryostat, Top Loading, Sample in He-3 Liquid 11
HE-3-TLOSL Cryostat, Top Loading, Optical, Sample in He-3 Liquid 12
HE-3-TLSV Cryostat, Top Loading, Sample in Vacuum 13
Gas Handling System for Top Loading He-3 Systems 14

Special He-3 Cryostats
HE-3-TLSL-NMR Cryostat, Top Loading, Sample in He-3 Liquid for NMR Experiments 15
HE-3-TLSUHV-SPM Cryostat, Top Loading, Sample in UHV for Scanning Probe Microscope System 16
HE-3-SSUHV-SPM/ESR Cryostat, Standard Sample Loading, Sample in UHV for Scanning Probe Microscope System and Electron Spin Resonance System 17
HE-3-BLSUHV-STM Cryostat, Bottom Loading, Sample in UHV for Scanning Tunneling Microscope System 18
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