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Argonne scientists shed light on mechanism behind superinsulation

From the Argonne National Laboratory press room: Scientists at the U.S. Department of Energy's Argonne National Laboratory have discovered the microscopic mechanism behind the phenomenon of superinsulation, the ability of certain materials to completely block the flow of electric current at low temperatures.

From physicsworld.com, “Atomic spins measure ultracold temperatures”

Physicists in the US have developed a new kind of thermometer that can measure down to as low as one billionth of a degree above absolute zero and has the potential to reach just a few trillionths of a degree.

CDMS results may not be dark matter

In December of last year, the CDMS-II team came across possible evidence of dark matter, though what they think may be weakly interacting mass particles, or WIMPS, may also just be background noise.

Researchers to test new superconductor material, BSCCO2212

Materials scientists, physicists, magnet experts and engineers from seven institutions have come together on the "Very High Field Superconducting Magnet Collaboration" to test a new superconducting material, BSCCO2212.

NASA’s WISE to include Lockheed Martin cryostat

A dual-stage cryostat built by Lockheed Martin Space Systems Company Advanced Technology Center, Palo Alto CA, is onboard NASA's Wide-Field Infrared Survey Explorer, or WISE, which launched on December 14, 2009.

Daniel P. McGahn named AMSC President and Chief Operating Officer

American Superconductor Corporation has named Daniel P. McGahn President and Chief Operating Officer.

Latest in Defining Cryogenics

Regenerators

Regenerators or regenerative heat exchangers are a key component of cryocoolers such as pulse tube cryocoolers (Cold Facts, August 2014). Regenerator performance greatly affects the coefficient of performance of cryocoolers. Improvements in regenerator design and, in particular, regenerator materials have been an important factor in the improvement of the performance...

Pulse Tube Cryocoolers

The development of pulse tube cryocoolers has been a significant topic of research and development over the past 20 or so years. Pulse tube cryocoolers have a number of advantages over other types of cryocoolers and are now available commercially. In order to understand pulse tube cryocoolers, it’s best to...

Thermal Expansion

Thermal expansion refers to the change in size (length or volume) that a material undergoes as its temperature changes. In cryogenic systems this effect can be quite large and must be allowed for in the design. In isotropic materials, which include most engineering materials, the thermal expansion is the same...

Latest in Cryo Central

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...

Latest in Ask the Experts

Convert PSI or Torr to Degrees Kelvin?

When using helium vapor bulbs under 30K, what is the formula to convert from PSI or Torr to degrees Kelvin?

Searching for a company to make a specific kind of cryogenic chamber

I am writing a proposal to do some deep space simulations of mechanical vibrations at cryogenic temperatures. For the research, I will need to obtain a chamber that has a space of approximately 1700 cubic inches (or a 12in. cube) that also has an optical viewing window.

Cryogenic cooling as possible treatment of aluminum parts for semiconductor industry

I’m interested in cryogenic cooling as a possible treatment of aluminum parts for the semiconductor industry.

Calibration curve for pt100 below 70K?

Does anyone have a calibration curve for pt100 below 70K?

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