UK pulls out of ILC
A funding crisis at a leading research council in the UK, The Science and Technology Facilities Council (STFC), has forced the country to pull out of plans for the International Linear Collider (ILC).
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JLab achieves milestone in construction of $310-Million upgrade
A proposed $310-million project that will double the energy of the electron beam at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) achieved a critical milestone on November 9, 2007, when the Department of Energy approved the project's performance baseline.
LCFOA elects Grimm and Urbin to Board
The Linear Collider Forum of America (LCFOA) has elected Dr. Terry Grimm of Niowave and John Urbin of Linde BOC Process Plants to their Board of Directors. Urbin is a CSA board member and Grimm, a CSA member, received the prestigious Boom award from the Society.
“Absolute Zero and the Conquest of Cold” miniseries gets rave reviews
The miniseries Absolute Zero and the Conquest of Cold aired in late July on British BBC4 to rave reviews.
CSA member John Moeller publishes book
CSA member John Moeller, a cryogenic engineering consultant and owner, Trinity Technology, has published his personal account of the early days of the US space program, "From Malabar to the Moon," a hardcover book.
Phillip L. Korodi has joined Eden Cryogenics as Senior Designer
Phillip L. Korodi has joined Eden Cryogenics as Senior Designer. He has had an extensive career in the cryogenic industry. At Eden he will be responsible for vacuum insulated piping design and development over a variety of applications, including turnkey cryogenic systems.
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Joule-Thomson Effect
The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...
Current Leads
One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...
Multilayer Insulation
Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...
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...
Seeking recommendations for commercial sensors
I would like to measure vibrations in small LHe cryostats. Could anybody recommend commercial sensors which would be suitable for the purpose? I am interested in the frequency range between 1Hz and a couple of KHz, with particular attention to the low frequency side.
Estimating cost of carbon steel, pure helium storage tanks
In order to perform an indicative cost assessment of our helium cryogenic plant (still in the design phase), I need an estimation of the cost of carbon steel room temperature pure helium storage tanks. The storage pressure is 20 bar. Can anyone give me suggestions about how to estimate the...
Supplier of pressure sensor that works down to 4.2 K
In an actual experiment we would like to measure the static pressure in a cryostat in the range between one and four bar. Therefore we are looking for some (more or less) cheap pressure sensors that work in liquid helium in the pressure range up to five bar. Unfortunately all...
Looking for reference/textbook suggestions
Can you suggest some reference textbooks for practical thermodynamics applications in cryogenic fields? I need textbooks with cryogenics calculations and examples, dimensioning procedures, second principle applications in cryogenics, heat load calculations, cryogenic pump application, etc. Do such books exist? Does any similar source of information exist?