LHC ends first period of operation
Wednesday, December 16 marked the end of the first period of operation for the Large Hadron Collider, during which new world records were set and the data-taking process began.
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Budget cuts announced by UK’s STFC
The UK's Science and Technology Facilities Council (STFC) announced last week that it will withdraw from 25 leading international science projects over the next five years in an effort to make up for a £40 million shortfall in funding.
Air Liquide acquires hydrogen technology from H2Gen
Air Liquide has announced that is has acquired the Hydrogen Generation Module (HGM) technology from H2Gen Innovations, Inc., based out of Alexandria VA.
Eden moves Meister into Quality Assurance Manager position
Eden Cryogenics has recently moved John Meister into the position of Quality Assurance Manager.
LHC breaks record for proton acceleration
CERN's Large Hadron Collider broke the record previously held by Fermilab's Tevatron when it sent beams of particles at 1.18 trillion electron volts around the machine's ring early this morning.
Winner of 3M prize drawing announced
CSA thanks our members who participated in the recent 3M online survey on insulation. The winner of the prize drawing was long-time CSA member, John Jurns, from ARSC/NASA, Cleveland.
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Joule-Thomson Effect
The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...
Current Leads
One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...
Multilayer Insulation
Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...
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...
Rotating shaft seal for liquid to gaseous hydrogen?
I am constructing a cryogenic generator for the Air Force. It operates at 15,000 rpm for Liquid Hydrogen. I need a rotating shaft seal that will work with liquid to gaseous hydrogen. Where can I source seals for this application?
Source to help with cryo-treating a Nickel-Aluminum-Bronze impeller?
I am a graduate student at Penn State University working on a cavitation resistance project via cryo-treating a Nickel-Aluminum-Bronze impeller.
Looking for technical papers on the effect of processing metals at liquid helium temperatures.
I am a metallurgical engineer looking for technical papers on the effect of processing metals at liquid helium temperatures. In anyone familiar with any work in this field?
Quantitative data on mechanical properties for AISI 4340 alloy steel
I have a potential client who is looking for quantitative data on mechanical properties, particularly fatigue properties, with and without cryogenic tempering at -300/-320 degrees F for AISI 4340 alloy steel. Can you point me in the right direction?