Dr. Bird named Director of FSU’s Magnet Science and Tech. Group
CSA member Dr. Mark Bird has been officially named Director of Florida State University's Magnet Science and Technology Group.
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Eden Cryogenics and Niowave announce a teaming agreement
Eden Cryogenics, LLC and Niowave, Inc. have announced a teaming agreement to better serve customers and product needs for the Superconducting Particle Accelerator and National Laboratory markets.
Larbalestier to receive award from ICMC
David Larbalestier, the director of FSU's Applied Superconductivity Center (www.magnet.fsu.edu/magnettechnology/research/asc/overview.html), has been selected to receive the Cryogenic Materials Award for Lifetime Achievements 2007 from the International Cryogenic Materials Conference (ICMC). He will be presented with the award during a meeting of the conference on Tuesday, July 17, in Chattanooga, Tenn.
Powerful magnet achieves nominal operating conditions
The ATLAS Barrel Toroid, the largest magnet every built, has successfully been powered up to its nominal operating conditions at the first attempt.
Los Alamos lab announces magnet is ready for use at 85 Tesla
Los Alamos National Laboratory announced that after 10 years of work, the world's most powerful pulsed, non-destructive magnet is ready for use at 85 Tesla, Associated Press reported.
Eden Energy announces global re-alignment of its organization
Eden Energy, Ltd. has announced a global re-alignment of its worldwide organization, including corporate name changes, facility moves and the advancement of key personnel, in order to focus on key customer segments and capture future global growth opportunities.
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Mixed Refrigerant Cycles
Most cryogenic refrigeration systems, both large scale systems and cryocoolers, use helium as a working fluid. There are a number of advantages to helium, not the least of which is that helium remains a fluid down to the lowest achievable temperatures. In order to freeze helium, pressures of over 20...
Fountain Pumps and He II Phase Separators
Helium II (He II), the second liquid phase of the 4He isotope described in this column in Cold Facts Spring 2010 (http://2csa.us/he2), can be modeled as consisting of two interpenetrating fluids. One, the superfluid component, has zero viscosity and entropy and the other, the normal fluid component, has nonzero viscosity...
Turboexpanders
A vital technology in the refrigerators and liquefiers described in Cold Facts Volume 31 Number 3 is that of turboexpanders. These devices are rotating machines in which the process fluid (e.g., helium) does work against the turboexpander while moving from high pressure to a lower pressure and thus is cooled....
Cryogenic Treatment of Materials
F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...
Cryogenics in Space
Peter Kittel University of California-Berkeley pkittel@cal.berkeley.edu Space Cryogenics is the application of cryogenics to space missions. These applications fall into two broad areas, supporting space science missions and supporting the space transportation infrastructure. Science applications: The atmosphere is opaque to much of the electro-magnetic spectrum. In space, the absence of...
Cryosurgery
Review of Cryosurgery Boris Rubinsky, PhD Hebrew University School of Science and Engineering Research Center for Biomedical Engineering 78b Ross Building Givat Ram, Jerusalem 91904 Israel rubinsky@cs.huji.ac.il as published in Annual Review of Biomedical Engineering, August 2000, Vol. 2, pp. 157-187. Abstract: Cryosurgery is a surgical technique that employs freezing...
Liquefied Natural Gas
Liquefied Natural Gas as it relates to the Field of Cryogenics John W. Bonn VJ Systems, LLC johnbonn@vjsystems-lic.com Today the world is looking for a cleaner fuel and Liquefied Natural Gas (LNG) plays a large part in achieving this goal. LNG in a liquid form is at -162°C (-259°F) and...
An Issue of Pressure and Flow Rate in a Supply Tank
Please help solve this problem: A supply tank requires a vaporizer to generate sufficient pressure to pump stored fluid up into a vehicle or tank. The available head is limited as the tank level falls and it is important to minimize the system pressure drop to maintain the desired flow...
Using MLI on VJ Line Joints or Cryo Storage Tanks
When installing Multi Layer Insulation (MLI) blankets on VJ line joints or cryo storage tanks should they be wrapped and tied down tight or loose? These are usually pre-cut to size. Also should they have an access hole at the point of where the molecular sieve is installed to help...
Separated layers of ice over a pipe
I want to know that why there are different layers of ice over a pipe carrying a cryogenic fluid, each layer separated with clear marks / lines? What do these layers signify?