Eden names Michael Dent Director of Business Development
Eden Cryogenics, LLC has named Michael Dent Director of Business Development, responsible for business development of major cryogenic and vacuum engineered systems and equipment.
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CSA member Craig Morton retires from Air Liquide America Corp.
Long-time CSA member Craig Morton has retired from Air Liquide America Corporation, and after a 43-year career in industrial gas industry is available as a consultant. Contact him at ~ccmorton@aol.com.
Percutaneous cryoablation may be alternative to surgery
Mayo Clinic researchers report that freezing kidney tumors through percutaneous cryoablation shows promise for patients who are not good candidates for surgery.
New company Cryox Limited starts up in July 2007
New company Cryox Limited was started in July 2007 on the Harwell Science and Innovation Campus by CLIK, the technology transfer arm of the UK Science & Technology Facilities Council (STFC), one of Europe's largest multidisciplinary research organizations supporting scientists and engineers world-wide.
“Absolute Zero” documentary to premiere on PBS in January
Absolute Zero, a two-part documentary on the study of low temperatures, will premiere on PBS on January 8th and 15th, 2008 at 8:00 (check local listings).
SuperPower and ORNL deliver 2G wire
The world's first significant delivery of 2G wire was made possible by SuperPower and Oak Ridge National Laboratory, who were selected to receive a 2007 R&D 100 Award.
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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...
Presence of alloying elements in tool steels
I want to expand my knowledge of cryogenics in general and tool steels in particular. Specifically, I am keenly interested in learning about the presence of alloying elements in tool steels and how their presence in various combinations affects the performance of tool steels after cryogenic treatment.
Pros and cons of barcoding samples
I was wondering if I could ask for input on pros and cons of barcoding. We are in the process of trying to decide if we should start barcoding our samples and I’m just not sure if this is feasible for our organization. We have numerous sites all over the...
Purity level of helium gas stream in cryo plant purification system
I would like to know what the principal methods and the relative instrumentation to check the purity level of helium gas stream in the purification system of a common helium cryogenic plant are. What principles are these instruments based on? And what are their principal characteristics?
LN2 for cryopreservation through controlled rate freezing of samples
I am the cryogenic specialist for a stem cell bank in Greece. I am trying to find the minimum requirements (purity, humidity, etc.) of liquid nitrogen for cryopreservation through controlled rate freezing of biological samples.