Products

HE-3-SSV Insert - Standard Sample Loading, Sample in Vacuum

Overview

Click image to enlarge view of HE-3-SSV ultra low temperature insert from Janis Research, cryogenic equipment

The model HE-3-SSV insert is designed for standard sample loading with the sample in vacuum.

 

 

 

 

 

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Standard Configuration

The model HE-3-SSV insert is designed for standard sample loading with the sample in vacuum. The sample is typically attached at the bottom of the He-3 pot inside the inner vacuum chamber (IVC) can for cooling. The system design minimizes the intrinsic heat leak to the He-3 pot and optimizes the performance, resulting in a cost effective He-3 cryostat that is extremely reliable and easy to operate.

Click image to enlarge view of HE-3-SSV ultra low temperature insert from Janis Research, standard sample loading, sample in vacuum, cryogenic equipmentEnlarge

HE-3-SSV Insert Mechanical Drawing

With Janis' superior design, the He-3 insert can be operated with the 1 K pot pump turned off after it reaches the base temperature. In this case the system will be extremely quiet, which is highly desirable for many applications. This unique feature also reduces the liquid helium consumption and makes the operation more cost effective.

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
  • Operation test

Options:

  • Resistive and/or superconducting wires
  • Coaxial cables
  • Fiber optics
  • Clear shots to IVC
  • 1 K cold plate
  • Computer controller motorized 1 K pot cryogenic needle valve
  • Rotating sample holder
  • High efficiency helium dewar 
  • Sliding seal
  • Automatic temperature controller
  • Superconducting magnet 
  • Magnet support with high current leads
  • Magnet power supply
  • IVC tail for superconducting magnet
  • Low eddy current cold finger
  • "10 K" radiation shield for operating temperature up to 300 K in full magnetic fields
  • Liquid helium level probe
  • Digital cryogen monitor
  • Liquid helium transfer line 
  • 1 K pot pumping station
  • Turbo pumping station

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Specifications

Performance Specification:

Pumping the 1 K pot
Base temperature: 300 mK
Hold time at base temperature: 120 hours

Stop pumping the 1 K pot after the base temperature is reached
Base temperature: 320 mK
Hold time at base temperature: 40 hours

Operation temperature range: 0.3 K - 80 K (300 K optional)
Sample space: As required

Typical Performance chart for Model HE-3-SSV, Janis Research, ultra low temperature, cryogenic equipment
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