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Quantum Fluctuations Sustain Record Superconductor

Calculations performed by an international team of Materials Physics Center researchers representing Spain, Italy, France, Germany and Japan show that the crystal structure of the record superconducting LaH10 compound is stabilized by atomic quantum fluctuations. This result suggests that superconductivity approaching room temperature may be possible in hydrogen-rich compounds at...

Indian Railways to Inaugurate Hydrogen Powered Train

India Railways is developing a hydrogen powered suburban train and has floated an official expression of interest for industry participation. The move is part of the railway’s efforts at greening its fuel use. Indian Railways has already fitted solar panels on rooftops of diesel electric multiple unit trains of 4.5...

Cryomech’s Banner Year in Review

2019 has proven to be a banner year for Cryomech (CSA CSM). The company celebrated many business achievements, made unique innovations, and participated in events in the local community. They experienced their largest ever order intake in one month, shipped the largest single order in company history, shipped the most...

Making High Temperature Superconductivity Disappear to Understand Its Origin

Scientists at Brookhaven National Laboratory have collected evidence suggesting that a purely electronic mechanism causes copper-oxygen compounds to conduct electricity without resistance at temperatures well above absolute zero by studying a well-known cuprate containing layers made of bismuth oxide, strontium oxide, calcium and copper oxide (BSCCO).

What a Pair: Coupled Quantum Dots May Offer a New Way to Store Quantum Information

Researchers at the National Institute of Standards and Technology (NIST) and their colleagues have for the first time created and imaged a novel pair of quantum dots—tiny islands of confined electric charge that act like interacting artificial atoms. Such “coupled” quantum dots could serve as a robust quantum bit, or...

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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...

Magnetic Levitation

From http://www.superconductors.org. Magnetic-levitation is an application where superconductors perform extremely well. Transport vehicles such as trains can be made to “float” on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Not only would conventional electromagnets waste much of the electrical energy as heat, they would have...

Superconductivity

From Superpower website. History of Superconductivity Superconductivity was discovered in 1911 by the Dutch physicist, Heike Kammerlingh Onnes when he was able to liquefy helium by cooling it to 4 Kelvin, or -452°F. This enabled him to cool other materials close to absolute zero and investigate their electrical properties. He...

Medical Applications of Cryogenics

Neutron Therapy Cryogenics is at the heart of nuclear accelerators. Accelerators such as Fermilab’s Tevatron make neutron therapy for cancer possible. From Fermilab Today 4/20/09: Fermilab currently offers neutron therapy. But staff at Fermilab designed and built the proton accelerator used by the nation’s first hospital-based treatment center to use...

Nuclear Physics

Al Zeller National Superconducting Cyclotron Lab (NSCL) at Michigan State University zeller@nscl.msu.edu Cryogenics has a long history in nuclear physics. The technology has its origins in the use of cold traps for maintaining a vacuum, which is required to prevent beam loss and for generating high voltages used in acceleration....

Getter materials to absorb out gassed materials?

Here’s one for the scientists: We would like to sell vacuum insulated pipe for high temperature fluid applications. Are there any good getter materials that we can place in the vacuum space of our VJP to absorb outgassed materials at elevated temperatures?