Scientists expand search for light dark matter
After seeing possible hints of surprisingly light dark matter earlier this year, scientists on the Cryogenic Dark Matter Search have found a way to improve their search for such particles.
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XCOR Aerospace and United Launch Alliance hit milestone in liquid hydrogen engine program
XCOR Aerospace and United Launch Alliance have announced significant progress in the XCOR/ULA liquid hydrogen (LH2) engine development program.
Fermilab postdoc wins IEEE Particle Accelerator Science and Technology Award
Dr. Anna Grassellino of Fermi National Accelerator Laboratory has been awarded the Particle Accelerator Science and Technology Doctoral Student Award. Sponsored by the IEEE Nuclear and Plasma Sciences Society, it is given to individuals who have performed outstanding thesis research in particle accelerator science and technology.
SuperPower wire powers European Union ECCOFLOW
SuperPower Inc., a subsidiary of Furakawa Electric Company of Japan, has announced that it provided the second-generation high temperature superconducting (2G HTS) wire for the European Union (EU) collaboration program, called Project ECCOFLOW, that will demonstrate a new Superconducting Fault Current Limiter (SFCL) device capable of strengthening and protecting the...
GSA raises per diem for federal travel
The Government Services Administration announced some good news for federal employees: As of October, when government workers travel, their per diem rates will increase slightly—a positive sign for the beleaguered Association and for federal travel as an industry.
Major European scientific organizations to take part in European Researchers’ Night
CERN, ESA, ESO and UNESCO, in partnership with the Italian Institute of Astrophysics (INAF), invite the public to participate in “Origins 2013,” an exceptional event taking place simultaneously in Geneva, Paris and Bologna on European Researchers’ night, Friday, September 27. People from around the world can follow the event live...
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Helium-3
Helium-3 (3He) is one of the two stable isotopes of helium. The other is the much more common Helium-4 (4He). Neither of these isotopes should be confused with He II, which is the second liquid phase of 4He. He II was discussed in this column in the Spring 2010 edition...
Cryopumping
Cryopumping refers to the use of cryogenic temperatures to produce vacuum in enclosed spaces. More broadly, it can also refer to the removal of gases via cryogenic temperatures from a flow stream or enclosure without necessarily resulting in vacuum pressures. This is an important application of cryogenics and is used...
Thermal Acoustic Oscillations
Thermal Acoustic Oscillations (TAO) are a common event in cryogenic systems that can have significant adverse effects on the performance of the system. TAOs are sustained pressure oscillations that can occur in tubes containing gas, closed at one end (the warm end) that have a very large temperature gradient along...
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...
Investigating use of hydrophobic surfaces in cryogenics
I am a final year Physics Undergraduate at the University of Cambridge (UK). As a part of one of my courses this year, I have been asked to investigate the use of hydrophobic surfaces in cryogenics.