MicroBooNE begins construction, elects co-spokesperson
Fermilab's neutrino experiment, MicroBooNE, is beginning the full construction phase for the detector, after DOE announced the official Critical Decision 3b approval on March 29.
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CLNG president responds to senator’s comments on LNG exports
In response to comments from U.S. Sen. Ron Wyden suggesting the United States needs a policy on energy exports and that a "timeout" should be declared on permits to export LNG to non-Free Trade Agreement countries, Center for Liquefied Natural Gas (CLNG) President Bill Cooper issued the following statement:
Linde introduces new N2 pressure booster
Gas-assist injection molders (GAIM) can improve efficiency and quality -- even on lightweight parts and difficult geometries -- with the help of a new liquid nitrogen (N2) pressure booster from Linde North America.
Argonne named a “Best Place” for postdocs to work
For postdoctoral scholars, or postdocs, Argonne National Laboratory is the 6th best place to work in the United States, according to The Scientist, a life sciences magazine.
At DOE, body blows to fusion, nuclear physics and particle physics
Overall, the 2013 budget numbers for the Department of Energy's (DOE's) Office of Science, the single largest funder of physical sciences research in the United States, look reasonably good. The office would see its budget climb by 2.4% to $4.992 billion. Three of the office's six major research programs, however,...
CERN experiment makes spectroscopic measurement of antihydrogen
In a paper published online on March 7 by the journal Nature, the ALPHA collaboration at CERN reports an important milestone on the way to measuring the properties of antimatter atoms.
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Dilution Refrigerators
Dilution refrigerators are a common technique for reaching temperatures below 1K, particularly where continuous cooling at these temperatures is required. Helium exists in two stable isotopes: 4He and 3He. Naturally occurring 3He is extremely rare, constituting less than 1 part per million of helium gas. However, 3He can be manufactured,...
Oxygen Deficiency Hazards
Oxygen Deficiency Hazards (ODH) are a significant safety issue in cryogenic facilities. ODH occurs when inert gases such as nitrogen, helium or argon displace room air and thus lower the percentage of oxygen in the space below that required for human life. OSHA defines an area as oxygen deficient if...
Kelvin Temperature Scale
The Kelvin temperature scale is the principal temperature scale used in cryogenics and science. The kelvin is also one of the seven base units in the Système International d’Unités (SI) and is the unit of thermodynamic temperature. Thermodynamic temperature is a fundamental physical quantity (like mass, length or electrical current)...
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...