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Allen Dufort: Coding a cutting-edge space telescope

In July, as the world marveled at the first images of the Cosmic Cliffs and previously invisible areas of star birth revealed by the James Webb Space Telescope, Allen Dufort felt excited that he’d soon make his own contributions to space exploration. As a software engineer intern, Dufort is supporting Brown...

Cryogenic Operation of LEDs Results in Improved Quantum Efficiency

Terrestrial gravitational wave detectors have been used to identify various gravitational wave sources. For example, researchers have detected potential black hole neutron star mergers, binary neutron star inspirals, and binary black hole mergers via the advanced Laser Interferometer Gravitational-wave Observatory (LIGO). The aLIGO detectors’ most sensitive band is limited by thermal...

3D Systems Announces Copper-nickel Alloy for PBF-LB

3D Systems has announced CuNi30 – a corrosion-resistant, copper-nickel alloy for use with its DMP Flex 350, metal additive manufacturing machine. The material is a result from the company’s collaboration with HII’s Newport News Shipbuilding division to develop materials and process parameters for the Laser Beam Powder Bed Fusion (PBF-LB) process. “We’re...

Nikkiso to Bring Hydrogen Fueling Stations to California, South Korea, and Germany

Nikkiso Clean Energy & Industrial Gases Group was awarded multiple contracts for over a dozen locations. Nikkiso Clean Energy & Industrial Gases Group (CE&IG), a part of the Japanese company Nikkiso Co., Ltd group of companies, has announced that it was awarded several contracts for providing over a dozen hydrogen fueling...

NASA’s Cold Atom Lab Experiments with Exotic State of Matter

Since the days of NASA’s Apollo program, astronauts have documented (and contended with) how liquids like water behave differently in microgravity than they do on Earth – coalescing into floating spheres instead of bottom-heavy droplets. Now, researchers have demonstrated this effect with a much more exotic material: gas cooled to...

Temperatures Colder Than Space, Achieved on Earth Through X-ray Laser

A half-mile-long tunnel under Menlo Park, Calif., has become colder than most of the universe because of a particle accelerator that slams electrons together here on Earth. Using the X-ray free-electron laser at the Department of Energy’s SLAC National Accelerator Laboratory – part of an upgrade project to the Linac Coherent...

Latest in Defining Cryogenics

Space Cryogenics

Space cryogenics is, somewhat obviously, the application of cryogenics to space exploration and science. The use of cryogenics in space optimizes the launching of vehicles, provides power and life support to spacecraft and is critical for many scientific observations.Space cryogenics has a number of challenges and has driven both pure...

Exergy

The science of thermodynamics plays a major role in cryogenics. It underlies the various refrigeration cycles, from Carnot to Brayton (Cold Facts Vol. 32 No. 2) and Joule-Thomson, is a fundamental part of the definition of terms such as coefficient of performance (Cold Facts Vol. 31 No. 1) and even...

Cryogenic Treatment

Cryogenic treatment is the process of cooling materials to cryogenic temperatures temporarily to improve their material properties at room temperature. This is distinct from cooling materials down to cryogenic temperatures to take advantage of phenomena such as superconductivity that only occur at cryogenic temperatures. Cryogenic treatment, sometimes also referred to...

Latest in Cryo Central

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...

Latest in Ask the Experts

Specs and info on turbo expanders

I am a fourth year chemical engineering student doing a design project for the liquefaction of natural gas to DME and we are using a turbo expansion unit. I was wondering whether you would send me some specs and any additional information on turbo expanders that I could use as...

Colleges that offer cryogenic studies

Would you happen to know of any colleges in the US that offer cryogenics as a major? If not, should I major in something like biology or physics before, then branch off to the field of cryogenics? Any information that you could give me would be greatly appreciated, considering this...

Sudden loss of vacuum in LHe storage dewar

I’m trying to find data on what happens when a 100 Liter LHe storage dewar experiences a catastrophic failure such as a sudden loss of vacuum. If anyone has any info on this subject, it would be very helpful.

Data on hardness of Indium?

Where can I find experimental data on the hardness of Indium, as a function of temperature, as well as any existing data on the thermal contact conductance of junctions containing Indium foil, also as a function of temperature?

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