ADVERTISEMENT

The Magneto-Optic Modulator

Many state-of-the-art technologies work at incredibly low temperatures. Superconducting microprocessors and quantum computers promise to revolutionize computation, but scientists need to keep them just above absolute zero (-459.67° Fahrenheit) to protect their delicate states. Still, ultra-cold components have to interface with room temperature systems, providing both a challenge and an...

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...

ADVERTISEMENT

Dewar

A dewar is a type of cryostat named after Sir James Dewar, the researcher who first developed the concept of a vacuum insulated container with silvered walls to reflect thermal radiation. Dewar was the first to liquefy hydrogen, and he created the device to store his discovery. The thermos bottle...

Stirling and Gifford-McMahon Cryocoolers

Stirling and Gifford-McMahon (GM) cryocoolers are two of the most commonly used cryocoolers in cryogenics. Both devices have a significant industrial base and operate at a wide range of temperatures and capacities. The thermodynamic cycles for both of these cryocoolers are quite similar. The Stirling cycle consists of a compressor,...

Liquefied Natural Gas (LNG)

A significant commercial application of cryogenics is the liquefaction, transport and storage of natural gas. Liquefied Natural Gas (LNG) is generally 95 percent methane with a few percent ethane and much lower concentrations of propane and butane. LNG liquefies at 111.6 K. Unlike many applications of cryogenics, the motivation for...

Food Processing

Cryogenics and Food The industrial gas industry provides a host of products and services related to food. The various gases have useful and sometimes fascinating applications in food industry. “The food industry is not a homogenous industry. The needs of customers processing hamburger vs. poultry vs. strawberries vs. seafood, for...

Primary Standards

Elie K. Track Hypres, Inc. elie@hypres.com http://www.hypres.com/ Primary standards involve the exact definition and realization of units of measurement for various quantities, time, length, mass, voltage, resistance, current, etc. International agreements based on the latest scientific knowledge define those units, and their realizations vary depending on the unit itself. For...

Shrink Fitting

Robin A. Rhodes Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Shrink fitting, (or “compression fitting” as it is sometimes called), is a method used to insert a pin or bushing into a housing or other assembly requiring an extremely tight tolerance fit. It can be used as an alternative to...

Telecommunications

From the Winter 2004 issue of Cold Facts magazine The recent M-Calc IV — 4th Industry Assessment workshop discussing military and commercial applications for low-cost cryocoolers, held in November in San Diego, highlighted progress being made in cryogenics as applied in telecommunications. The reliability and long lifetime of projects now...

Need help comparing chest freezers and upright freezers

Currently we use in our Biobank an upright -80 freezer to store all our samples. We are planning to buy a fully automated bio-repository storage that will do the picking of samples under restricted conditions. But in the meantime I foresee that we have to pick the samples manually. The...

Need recommendations for cryogenic vials

I am looking into standardizing our range of bio storage tubes (cryogenic vials). These will be for both blood and tissue samples and their derivatives. Any recommendations, comments on Micronics, Nalgene, Nunc and or others that are suitable for long term -80 C and -196 C storage, DNA/RNA suitable, would...

We need a custom machine for flash freezing of water

We are an ice making company and have started a new project, which is related to flash freezing of water. It is based on cryogenics technology and we need a custom made machine. I would kindly ask you to pass me a few companies who would be interested in such...

Looking for a pump suitable for cold liquids

I would like to construct a small cooling circuit (appr. 50 x 50 cm) pumping liquid at a temperature down to -120°C from a cold reservoir to the specimen to be cooled. The tubes and connections are not a problem, but does somebody know a pump (suction/compression for circulation) suitable...