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HE-3-TLSL-NMR Cryostat for NMR Experiments - Top Sample Loading, Sample in Liquid

Overview

Click on button below to enlarge image of HE-3-TLSL-NMR helium-3 cryostat, Janis Research, ultra low temperature

The model HE-3-TLSL-NMR is a top loading system with sample in liquid He-3. The cryostat has a compact design and fits typical existing NMR magnet systems with room temperature bore.

 

 

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Standard Configuration

The model HE-3-TLSL-NMR is a top loading system with sample in liquid He-3. The cryostat has a compact design and fits typical existing NMR magnet systems with room temperature bore. The sample can be top-loaded into the He-3 chamber, while the cryostat stays cold. A sample probe and load-lock system is included, along with an external gas handling system for safe and quick sample insertion and removal in and out of the He-3 sample chamber.

Click button below to enlarge view of mechanical drawing of HE-3-TLSL-NMR ultra low temperature system for NMR spectroscopy, Janis ResearchEnlarge

HE-3-TLSL NMR Cryostat Mechanical Drawing

This He-3 cryostat includes the following components:

  • High efficiency liquid helium cryostat with compact tail region
  • Charcoal sorption pump with heater and thermometer
  • 1 K pot with thermometer
  • He-3 pot (sample chamber)
  • Load-lock
  • Sample probe with thermal anchor stage, thermometer, and heater
  • External gas handling system with stored He-3 gas
  • External sorption cryo-pump
  • Operation test

Options:

  • Resistive and/or superconducting wires
  • Coaxial cables
  • Fiber optics
  • Clear shots to IVC
  • Computer controller motorized 1 K pot cryogenic needle valve
  • Rotating sample holder
  • High efficiency helium dewar
  • Low eddy current cold finger
  • Automatic temperature controller
  • Helium level sensor and read out
  • Liquid helium transfer line 
  • 1 K pot pumping station
  • Turbo pumping station 

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Specifications

Performance Specification:

Base temperature: 270 mK
Holding time at base temperature: 24 hours (typical)
Operation temperature range: 0.3 K - 80 K
Sample space: 0.5" - 1.0"

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