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Inside Microsoft’s Quantum Labs in Sydney

As their nuclear warheads decay, the US military captures the helium-3 and supplies it to physicists like Professor David Reilly who, with his team comprising some of the sharpest minds in the world, uses it to cool down the dilution fridges that help chip away at what could be the...

ESA’s Technology Image of the Week: Jupiter Antenna That Came in From the Cold

The Sub-millimeter Wave Instrument of ESA’s Juice mission will survey the churning atmosphere of Jupiter and the scanty atmospheres of its Galilean moons. Testing took place in ESA’s custom-built Low-temperature Near-field Terahertz chamber, or Lorentz. The first chamber of its kind, the 2.8-m diameter Lorentz chamber can perform high-frequency radio-frequency...

Developments Towards Memristor-based Cryogenic Control Electronics for Solid-state Quantum Systems Enable Future Quantum Devices

A quantum device can be defined as a device whose functionality or principle of operation depends essentially on quantum mechanical effects and are inescapable nowadays, primarily to satiate the ever-increasing appetite for slimmer gadgets. As such, the ever-increasing improvement of nanofabrication processes has led to promising demonstration of high quality...

Paragraf Takes Graphene to Cryogenic Temperatures

Graphene has long been pursued as a medium for electronics in the world of academia. However, until recently, it has struggled to make its way into the industry. Paragraf, a UK-based company, is the first and only company to achieve this feat to date. Two months ago, All About Circuits...

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Transfer Lines

Transfer lines may in some real sense be thought of as the cryogenic fluid analogy of current leads. While current leads carry electrical power to where it’s required in a cryogenic system, transfer lines do the same with cryogenic fluids. Transfer lines range in complexity from very simple U-tubes containing...

Zero Boiloff

Zero Boil Off cryostats are those that contain liquid cryogens but are designed to eliminate or vastly reduce the boil off of  the liquid. These cryostats combine some of the advantages of Cryogen-Free systems (e.g. ease of use and long operational lifetime) with the advantages associated with a reservoir of liquid...

Cryomodule

Cryomodule is a term that is most commonly used to refer to cryostats that contain superconducting radio frequency (SRF) cavities. Such cavities are used to accelerate charged particle beams and are a major component of modern particle accelerators. Using the term cryomodule to refer to cryostats containing SRF cavities appears...

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

Assistance with resolving a sealing problem?

We are fabricating piping components for refrigeration service. These components must be leak checked at 15 bar (218 psig). We are using a gas test media that is 25% helium and experiencing difficulty on maintaining a seal on the flanged connections. Do you know anyone or any references that could...

Cryogenic data on leather and nomex

Could anyone please help me out with the following cryogenics data: Leather — mechanical properties at 77 K or lower Nomex — thermal conductivity @ 4 to 50 K I lost the data I had some time ago and although this should be easily accessible, I can’t find any reference...