Daniel P. McGahn named AMSC President and Chief Operating Officer
American Superconductor Corporation has named Daniel P. McGahn President and Chief Operating Officer.
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Oxford Instruments wins Corporate Excellence Award
From the Oxford Instruments website: The British Chamber of Commerce in Japan (BCCJ) has announced that Oxford Instruments KK has won the prestigious Corporate Excellence category at the 2009 British Business Awards.
NHMFL breaks previous record with new magnet
The National High Magnetic Field Laboratory has broken the record for the highest-field "resistive" magnet with their recently upgraded 36-tesla magnet, which uses electricity to generate high magnetic fields.
World’s thinnest high temperature superconductor shows potential
Physicists at Brookhaven National Laboratory have created layered films of cuprate (copper-oxide) materials that allow them to localize the superconducting behavior to a single atomic plane.
Which states in the US have established RQs for liquefied nitrogen?
I’m curious to know which states in the United States have established a reportable quantity (RQ) for liquefied nitrogen, should it be unintentionally released into the atmosphere. What are the RQs for these states? Here in Massachusetts, the RQ for LN2 is 10 pounds. Mark Bennett Office of Environmental Health...
Popular culture interest in STEM growing
CERN on the The Daily Show, NASA on The Colbert Report, outreach raps for the LHC, the Tevatron and FRIB, Japanese Manga art “edutainment” for KEK, standup comedy on the helium shortage, the Australian Science Agency teaming up on a science takeoff of a Backstreet Boys’ song, hundreds of songs...
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Cold Compressors
A common way to provide cooling below the normal boiling point of helium (4.2K) is to reduce the pressure above the bath of liquid helium, thus also reducing the bath’s equilibrium saturation temperature. For example, to produce a 1.8K bath of liquid helium, the saturation pressure has to be reduced...
Kapitza Conductance
Kapitza conductance refers to the heat transfer between a solid surface and a fluid that covers that surface. Fundamentally, it describes the inherent difficulty in transferring energy from a solid to the fluid covering the solid surface. This phenomenon was first observed by P. L. Kapitza in 1941 while studying...
Thermosyphons
A thermosyphon (or thermosiphon) is a device that transfers heat via natural convection in a fluid. The natural convection is driven by gravity with the colder, denser fluid flowing downhill and the warmer, less dense fluid flowing back up. Thus, thermosyphons connect an object to be cooled with a reservoir...
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...
Need help comparing chest freezers and upright freezers
Currently we use in our Biobank an upright -80 freezer to store all our samples. We are planning to buy a fully automated bio-repository storage that will do the picking of samples under restricted conditions. But in the meantime I foresee that we have to pick the samples manually. The...
Need recommendations for cryogenic vials
I am looking into standardizing our range of bio storage tubes (cryogenic vials). These will be for both blood and tissue samples and their derivatives. Any recommendations, comments on Micronics, Nalgene, Nunc and or others that are suitable for long term -80 C and -196 C storage, DNA/RNA suitable, would...
We need a custom machine for flash freezing of water
We are an ice making company and have started a new project, which is related to flash freezing of water. It is based on cryogenics technology and we need a custom made machine. I would kindly ask you to pass me a few companies who would be interested in such...
Looking for a pump suitable for cold liquids
I would like to construct a small cooling circuit (appr. 50 x 50 cm) pumping liquid at a temperature down to -120°C from a cold reservoir to the specimen to be cooled. The tubes and connections are not a problem, but does somebody know a pump (suction/compression for circulation) suitable...