CERN marks latest milestone with ceremony
A brief ceremony in Geneva on November 7, 2007 marked the latest milestone for CERN's Large Hadron Collider (LHC), the world's most powerful particle accelerator.
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Two scientists join Argonne’s Center for Nanoscale Materials
Two scientists, Elena Rozhkova and Elena Shevchenko, have joined Argonne National Laboratory's Center for Nanoscale Materials.
AmSC and TECO-Westinghouse announce research joint venture
American Superconductor Corporation and TECO-Westinghouse Motor Company announced the formation of a research joint venture to develop high temperature superconductor (HTS) and related technologies for high-power, direct drive wind generators for offshore wind farms.
DNV approves FIBA for Manufacturer Certificate No. T-1142
Det Norske Veritas (DNV) has granted FIBA Technologies, Inc. approval of Manufacturer Certificate No. T-1142, which approves FIBA for the manufacturing of seamless gas bottles and pressure vessels of Class I and II. FIBA is one of only four companies in the world to be granted this approval.
Carl T. Johnson nominated for Administrator of PHMSA
Carl T. Johnson, former president of The Compressed Gas Association, has been nominated by President George W. Bush to be Administrator of the Pipeline and Hazardous Materials Safety Administration at the Department of Transportation.
James Fesmire gets promoted at NASA Kennedy
CSA Technical Director James Fesmire was recently promoted to the position of Senior Principal Investigator at the NASA Kennedy Cryogenics Test Laboratory.
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Helium II
Helium II (He II) refers to the second liquid phase of the most abundant helium isotope (4He). Helium II is also referred to as superfluid helium. Helium II occurs once the temperature of the liquid helium drops below 2.17K. The phase transition between the first liquid phase of Helium (referred...
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...
Power usage: cryogenic systems vs. regular refrigerators
A recent project highlighted to me that closed cycle cryogenic cooling systems use far more electrical power to reduce temperatures by a few watts than regular refrigerators. I am sure it must be something to do with the extra difficulty of removing the heat from the liquid nitrogen or similar...
Redundancy strategies for mechanical -80C freezers
I was wondering what kind of redundancy strategies are people using for their mechanical -80C freezers? I am aware of the following. Please add if you are doing something different. 1) 1 Backup freezer for every 10 freezers – Empty and maintained at -80C at all times 2) Backup C02...
Safety guidelines for handling cryo vessels of nitrogen
I am looking for any safety guidelines for handling cryogenic vessels of nitrogen indoors and outdoors. I am especially interested in recommendations for area monitors to detect leaks, flow detection devices, etc.
Method to move components in a cryogenic environment
Does anyone know of a method with which to reliably move components in a cryogenic environment? We are interested in moving detectors in a cryogenically cooled (2K) vacuum chamber, which is contained within a larger cryostat/isolation vacuum with thermal shields. As the desired horizontal or vertical displacement is between 10...