Hypres: Progress in SC RF for Telecommunications
Richard Hitt, President and CEO, Hypres Inc., and Dr. Elie Track, PhD, Senior Partner, discuss new progress in the use of Superconducting Radio Frequency (SC RF) techniques in telecommunications.
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Meyer Tool contributes to Alpha Project
Professors S. Y. Lee and Paul Sokol of the Indiana University Center for Exploration of Energy and Matter (IUCEEM) are currently leading the design effort of a multipurpose electron accelerator called the Alpha Project (Advanced Electron-Photon Facility), which will be operated under a joint collaboration between Crane Naval Surface Warfare...
LHC sets record as highest energy particle accelerator
On March 19, the LHC set yet another energy record as it ramped up to circulate two 3.5 TeV proton beams for the first time.
GE to expand access of MRI systems to underdeveloped regions
GE Global Research has been awarded a four-year, $3.27 million award from the National Institutes of Health (NIH) for new magnet technology that will cut back on the costs and inconveniences of current MRI systems.
BNL’s RHIC detects exotic antimatter
From http://www.bnl.gov: An international team of scientists studying high-energy collisions of gold ions at the Relativistic Heavy Ion Collider (RHIC), a 2.4-mile-circumference particle accelerator located at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory, has published evidence of the most massive antinucleus discovered to date.
Hypres Figure of Merit for Multi-Stage Cryocoolers
In the Winter 2010 issue of Cold Facts, an article was featured entitled "Hypres: Progress in SC RF for Telecommunications." The article mentions that Hypres has developed a figure of merit (FoM) that allows them to compare cryocoolers with different stages for their applications.
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Refrigerators and Liquefiers
Two of the most common terms used in cryogenics are “refrigerator” and “liquefier.” These terms describe similar and, as will be seen, in some cases identical components. A refrigerator provides cooling (that is, absorbs heat) at cryogenic temperatures. Refrigerators typically put a working fluid (such as helium) through one of...
Air Separation
Air separation is one of the largest, as well as earliest, industrial applications of cryogenics. In this process, cryogenic temperatures are used to separate air into its constituent gases: nitrogen (78.08%), oxygen (20.95%), argon (0.93%) and carbon dioxide (0.3%). Trace gases such as krypton, neon, xenon and helium total far...
Coefficient of Performance and Figure of Merit
The coefficient of performance (COP) is used to describe the effectiveness of refrigerators, including those operating at cryogenic temperatures. The COP is defined as the amount of heat removed at the cryogenic operating temperature of the refrigerator divided by the amount of work that must be applied to remove the...
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...
Seeking alloy that keeps elastic property down to 10K
I am looking for a metal (alloy) that supports high temperatures (at least 1600K) and keeps its elastic property at low temperatures down to 10K. Rhenium is a good one because it does not become brittle. But it is quite expensive. Pure tungsten and molybdenum enter in the brittle regime...
Searching for a freezer that does not need electricity
I’m student of University of Barcelona. We do technical cryogenic research and we are searching for a cryogenic portable freezer that does not need electricity. We can’t find any company that offers something like this. The product we are looking for is the typical portable freezer for food or drinks...
FEP Encapsulated O rings in the cryogenic process
Can you please advise if FEP Encapsulated O rings are used within the cryogenic process and what materials? I have been asked by my company to write about FEP Encapsulated O rings for a training seminar.
Need material property data for polycrystalline / sintered ceramics
I am a ME grad student currently working on the design of a detector array / focal plate of a scientific space instrument operating at a temperature of about -80…-100°C. Although this is not in the cryogenic temperature range, I would like to address two questions to you as the...