Janis Research, cryogenics, cryostats

3HELIUM SYSTEMS

Model HE-3-SSUHV-SPM/ESR Cryostat
Description:

The model HE-3-SSUHV-SPM/ESR cryostat is designed for versatile applications with sample in UHV environment.

The system contains two identical He-3 inserts which provide very large cooling power for various types of experiments.  A "universal" sample mount made of gold plated OFHC copper is thermally connected to the two He-3 pots.  This is used for cooling Scanning Probe Microscope heads, Electron Spin Resonance devices and a variety of other experiments.

A high field superconducting magnet as well as an ESR modulation coil are supplied with the system.  The ESR modulation coil can reach a field of 1350 gauss, with a 27 gauss per ampere resolution.

A clear shot access, with a 4.2 K thermal anchor stage, is incorporated into the system so that the cryostat can be turned into a top-loading system with minor modifications. 

This He-3 cryostat includes the following main components:

  • Thermometer and heater on the sample mount
  • Charcoal sorption pumps with heaters and thermometers
  • 1 K pot with thermometers
  • 1 K cold plate for wiring thermal anchor
  • He-3 pot with heaters and thermometers
  • UHV as well as standard vacuum cans
  • Gas handling system
  • Operation test

Options:

  • Resistive and/or superconducting wires
  • Coaxial cables
  • Automatic temperature controller
  • Helium level sensor and read out
  • Vapor cooled helium dewar
  • Liquid helium transfer line

HE-3-SSUHV-SPM/ESR He-3 cryostat from Janis Research, cryogenics

Performance Specification:
Base Temperature: 340 mK
Holding Time at Base Temperature: 24 hours
Sample Space: up to 10 cm
Temperature Range: 0.30 K - 80 K

Mechanical Drawing of Model HE-3-SSUHV-SPM/ESR Helium-3 cryostat - Janis Research

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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