Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

Academics rallying to boycott Elsevier

Over 4,000 scientists have signed an online petition in protest over the pricing and distribution policies of Elsevier, a publisher which sells over 2,000 academic journals along with 20,000 other books. Many of the signatories are distinguished academics at such institutions as Harvard, Yale, McGill, Cambridge and Oxford. They promise...

MSU Board approves next step of FRIB project

The Michigan State University Board of Trustees has given its approval to the next step in the development of the Facility for Rare Isotope Beams, a world-class nuclear research facility that will attract scientists from all over the world to East Lansing while creating more than $1 billion in economic...

Scientist recounts superconductivity discovery

Like many young men from Alabama, Jim Ashburn's path to fame involved football, good timing, a fair dose of serendipity (or good luck, if you prefer), timely coaching and a strong team. Ashburn's path also included a love of science, especially mathematics.

The capability for producing niobium sheets

The International Linear Collider will need about 16,000 superconducting radiofrequency cavities, devices that accelerate electrons and their antiparticles, positrons, along microwaves to near speed of light. These cavities are made out of pure niobium, which means the ILC community needs 500 tonnes of high-purity niobium processed into nice, smooth sheets.

Berkeley Lab selects Richmond Field Station as preferred site

The University of California announced that it has identified the Richmond Field Station as its preferred site for the proposed consolidation of the biosciences programs of the Lawrence Berkeley National Laboratory (Berkeley Lab).

Goddard Center Director announces departure from agency

NASA Goddard Space Flight Center Director Robert Strain announced he will leave the agency on March 4, 2012, to take a position in private industry.

Latest in Defining Cryogenics

Space Cryogenics

Space cryogenics is, somewhat obviously, the application of cryogenics to space exploration and science. The use of cryogenics in space optimizes the launching of vehicles, provides power and life support to spacecraft and is critical for many scientific observations.Space cryogenics has a number of challenges and has driven both pure...

Exergy

The science of thermodynamics plays a major role in cryogenics. It underlies the various refrigeration cycles, from Carnot to Brayton (Cold Facts Vol. 32 No. 2) and Joule-Thomson, is a fundamental part of the definition of terms such as coefficient of performance (Cold Facts Vol. 31 No. 1) and even...

Cryogenic Treatment

Cryogenic treatment is the process of cooling materials to cryogenic temperatures temporarily to improve their material properties at room temperature. This is distinct from cooling materials down to cryogenic temperatures to take advantage of phenomena such as superconductivity that only occur at cryogenic temperatures. Cryogenic treatment, sometimes also referred to...

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

Presence of alloying elements in tool steels

I want to expand my knowledge of cryogenics in general and tool steels in particular. Specifically, I am keenly interested in learning about the presence of alloying elements in tool steels and how their presence in various combinations affects the performance of tool steels after cryogenic treatment.

Pros and cons of barcoding samples

I was wondering if I could ask for input on pros and cons of barcoding. We are in the process of trying to decide if we should start barcoding our samples and I’m just not sure if this is feasible for our organization. We have numerous sites all over the...

Purity level of helium gas stream in cryo plant purification system

I would like to know what the principal methods and the relative instrumentation to check the purity level of helium gas stream in the purification system of a common helium cryogenic plant are. What principles are these instruments based on? And what are their principal characteristics?

LN2 for cryopreservation through controlled rate freezing of samples

I am the cryogenic specialist for a stem cell bank in Greece. I am trying to find the minimum requirements (purity, humidity, etc.) of liquid nitrogen for cryopreservation through controlled rate freezing of biological samples.

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