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ORNL Team Recognized as Highly Cited Researchers

Fifteen scientists at the Oak Ridge National Laboratory (CSA CSM) have been named 2018 Highly Cited Researchers. The list recognizes scientists for exceptional performance, demonstrated by the production of multiple highly cited papers that rank in the top one percent by citations.

LHC Ends Second Season, Prepares for New Achievements

Expert team members from CERN turned off the Large Hadron Collider in early December, ending the successful second run of the world’s most powerful particle accelerator. The complex will be shut down for about two years, according to CERN, enabling both major upgrades and renovation work.

MIT Discovers Material that Performs as Both Topological Insulator and Superconductor

The Massachusetts Institute of Technology reports that the exact same material can be turned into either a topological insulator or a superconductor. The new findings reveal that in a single-layer crystal form, at temperatures from less than 1 K to the liquid nitrogen range of -320°F, hosts three distinct phases,...

Cool Innovations for Clean Energy

Cryogenic technology is making it possible for liquid air, nitrogen and methane—including methane derived from cow slurry—to play roles in combating global warming. Read more about these efforts in coverage from physicsworld.

Why Physics Needs a Post-LHC Collider

The Large Hadron Collider is the most powerful particle accelerator ever built, and scientists there have pushed the frontiers of particle physics past old boundaries, achieving higher energies and greater numbers of collisions than ever before. So far all the colliders up through the LHC have revealed particles that behave...

Pushing the Extra Cold Frontiers of Superconducting Science

Measuring the properties of superconducting materials in magnetic fields at temperatures close to absolute zero is considered difficult but necessary by many researchers, helping them understand quantum properties.

Latest in Defining Cryogenics

Adiabatic Demagnetization Refrigeration

Reaching temperatures below 1K requires different techniques than the various helium gas cycles found in large scale refrigeration plants and small cryocoolers. One of these techniques is Adiabatic Demagnetization Refrigeration (ADR). This technique takes advantage of the fact that the entropy of paramagnetic materials in a magnetic field is lower than...

Cryogen-Free

A cryogen is any fluid that operates at cryogenic temperatures (below roughly 150K – 120K). Using this definition, helium gas at 40K is a cryogen. Another more restrictive definition is to use cryogen to refer specifically to liquids at cryogenic temperatures. This is generally how it is used in the...

Cryostats and Cryocoolers

A cryostat is any device designed to maintain things (including fluids) at cryogenic temperatures. In general usage, cryostats tend to be passive devices rather than providing active cooling. In this usage, cryostats keep things cold by thermally isolating them from room temperature. This generally is accomplished by a combination of...

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

Looking for the thermal conductivity of the high density polyethylene (HDPE) between 1.9 and 10K

I am looking for the thermal conductivity of the high density polyethylene (HDPE) between 1.9 and 10K (or even up to higher temperatures). The best would be to have these data for the HDPE material which sold by the CERN shop, which has a density of 0.95 g/cm3. Pier Paolo...