Oxford Instruments specialises in the design, manufacture and support of innovative solutions, tools and systems for the emerging nanotechnology markets in areas such as XRF (X-ray Fluorescence) analysers , microanalysis systems, superconducting wires, NMR (nuclear magnetic resonance) magnets, cryogenic systems, plasma etch and deposition low temperature environments and coating thickness measurement.

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HelioxTMAC-V, 300mK Cryofree® 3He system

Cryofree 3He system

HelioxAC-V

The HelioxAC-V is a bench top cryofree system able to cool large samples to 300mK for more than 50 hours without the need for liquid helium.

Features and Benefits

It incorporates a Pulse Tube Refrigerator (PTR) and Cryofree technology. This means:

  • it requires no liquid cryogen, making it significantly easier to operate than conventional 3He systems and enables operation in environments which would not normally support cryogenic equipment.
  • vibrational effects are minimal.

The system also benefits from:

  • a unique design. It employs a proprietary cryogenic cycle (US patent 6782712 and European patent application 1387133) using adiabatic multi-expansion of  3He gas.
  • Wide temperature range from 300mK to 300K
  • Operating time at base temperature more than 50 hours with a 3He regeneration time of 3 hours typically.
  • High temperature stability. Professor Leonid Kuzmin from the Quantum Device Physics Laboratory from Chalmers university(Sweden) demonstrated a temperature stability as low as +/- 100 µm over a period of 8 hours. See full article entitled "Array of SIN tunnel junctions as a sensitive thermometer." in the Downloads and links section.
  • 3He storage dumps and pumping system are contained within the system enabling a compact design (0.4m diameter and 0.85m high)
  • No blockages can occur suring operation thanks to its built-in cryogenic pump which traps contaminants.
  • Large sample space:  up to 147mm diameter and 100mm high so the system can accommodate complex experimental set-ups.

Options

  • Wiring: Non-standard wiring to the helium-3 pot is available.
  • Cryostat tail: Special tails are available to fit a wide range of applications such as Neutron Scattering, low temperature detectors and optical applications.
  • Integration with a Cryofree magnet.

HelioxAC-V cryostat

HelioxAC-V inside of the cryostat

HelioxAC-V with tail

HelioxAC-V with narrow tail in a frame to fit in a Cryofree magnet

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OI Direct - Cryospares®

Oxford Instruments Direct Cryospares on-line catalogue

Browse our on-line Oxford Instruments Direct - Cryospares catalogue for cryogenic spares, accessories and consumables, with over 1,000 items. Click here (opens in new window) »

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