Ability Engineering receives National Board “R” Certificate of Authorization
Ability Engineering Technology, Inc. has received the National Board "R" Certificate of Authorization.
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Fire breaks out in Soudan mine
Fermilab Today reported on March 21 that a mine shaft fire that began in the Soudan Underground Mine last Thursday now appears to be out, though officials are unsure whether detectors for the MINOS experiment and the Cryogenic Dark Matter Experiment were damaged.
Airgas introduces new IQF freezer in Boston
Airgas announced a new addition to its FreezeRight line of cryogenic freezers at the International Boston Seafood Show on March 21.
Ad Astra and NASA JSC sign support agreement
Ad Astra Rocket Company and NASA Johnson Space Center (JSC) signed a Support Agreement on March 2 to collaborate on tasks related to space-based cryogenic magnet operations and electric propulsion systems for Ad Astra's VASIMR(R) technology.
Varian to collaborate with Synopsis on TCAD models for cryogenic ion implantation
Varian Semiconductor Equipment Associates, Inc. will collaborate with Synopsis, a leader in software and IP for semiconductor design and manufacturing, to develop Technology CAD (TCAD) models for cryogenic ion implantation.
Golden Pass LNG terminal approved to begin commercial operations
The Federal Energy Regulatory Commission (FERC) gave the approval to the Golden Pass LNG Terminal LLC and Golden Pass Pipeline LLC to begin commercial operations at the terminal in near Sabine Pass, Texas.
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Adiabatic Demagnetization Refrigeration
Reaching temperatures below 1K requires different techniques than the various helium gas cycles found in large scale refrigeration plants and small cryocoolers. One of these techniques is Adiabatic Demagnetization Refrigeration (ADR). This technique takes advantage of the fact that the entropy of paramagnetic materials in a magnetic field is lower than...
Cryogen-Free
A cryogen is any fluid that operates at cryogenic temperatures (below roughly 150K – 120K). Using this definition, helium gas at 40K is a cryogen. Another more restrictive definition is to use cryogen to refer specifically to liquids at cryogenic temperatures. This is generally how it is used in the...
Cryostats and Cryocoolers
A cryostat is any device designed to maintain things (including fluids) at cryogenic temperatures. In general usage, cryostats tend to be passive devices rather than providing active cooling. In this usage, cryostats keep things cold by thermally isolating them from room temperature. This generally is accomplished by a combination of...
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...
Dry ice vs. LN2 for preserving tissue
I was wondering if anyone could provide feedback/data on whether it is best in terms of preserving tissue quality to freeze tissue in OCT using dry ice versus liquid nitrogen?
Are there lists of existing biorepositories?
We are a relatively new Biorepository that was developed as part of a large breast cancer epidemiology study, and thus far we have accumulated DNA on over 8000 women along with extensive questionnaire, mammography, and case status data. I was wondering, are there lists of existing Biorepositories with their contents?...
Heat flux value for inner vessel when vacuum insulation fails
To size a relief valve for a LN2 cryostat I have to know “worse case” boil-off rate when vacuum insulation failed and inner vessel with LN2 is in direct contact with room temperature air at 300K. So, I am looking for a heat flux value (watt/m2) to LN2 inner vessel...
Trying to design a system to store ammonia at -33°C
I am working on a project where we are trying to design a system to store ammonia at -33°C. In order to size the compressors to maintain the ammonia in the liquid state, I need to estimate the heat gained from the environment including the radiation from the sun and...