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Physicists Discover New Type of Quantum Material

An international team of researchers led by physicists at Rice University has stumbled upon a theoretical result that could help experimental physicists create a "Weyl-Kondo semimetal," a quantum material with an assorted collection of properties seen in disparate materials like topological insulators, heavy fermion metals and high-temperature superconductors.

Both Frozen and Fresh Embryos Offer Similar Chances of Baby after IVF for Most Women

For women using in vitro fertilization to have a child, using either fresh or frozen embryos results in similar success rates for most women, according to an international team of researchers.

Researchers Engineer Ultra Sensitive Temperature Sensor

Researchers in Brazil have created an optical thermometer capable of measuring temperatures from 750 to 80 K. It operates in real time and in well-defined regions with a spatial resolution ranging from a centimeter to a micrometer. It also has practically no effect at all on the temperature of the...

Researchers Cool Chip Below 3 mK, Establish New Low Temperature Record

Physicists at the University of Basel in Switzerland have succeeded in cooling a nanoelectronic chip to a temperature lower than 3 mK. The research team used magnetic cooling to cool the electrical connections as well as the chip itself.

Dark Energy Survey Publicly Releases Data Trove

Scientists on the Dark Energy Survey publicly released data from the project's first three years during a special session held at the American Astronomical Society meeting in Washington DC. The release includes information on about 400 million astronomical objects, from distant galaxies billions of light-years away to stars in our...

Separate Research Teams Advance Quantum Simulators

Researchers at the Harvard-MIT Center for Ultracold Atoms and at the Joint Quantum Institute at the University of Maryland have announced complementary advances in quantum studies that constitute a major step towards the realization of large-scale quantum machines.

Latest in Defining Cryogenics

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...

Latest in Cryo Central

Magnets

From “Superconductivity: Present and Future Applications” by the Coalition for the Commercial Application of Superconductors. Particle physics uses accelerators to recreate the conditions of the early universe in an attempt to piece together the complex puzzle of how we got to where we are today. These huge machines are used...

Energy Storage

From “Superconductivity: Present and Future Applications” by the Coalition for the Commercial Application of Superconductors. With power lines increasingly congested and prone to instability, strategic injection of brief bursts of real power can play a crucial role in maintaining grid reliability. Small-scale Superconducting Magnetic Energy Storage (SMES) systems, based on...

Astronomy

ASTRONOMY IN SPACE by Peter V. Mason, retired, Jet Propulsion Laboratory, and Visiting Associate, California Institute of Technology. Pmason@alumni.caltech.edu In thinking about the reasons to perform astronomy in space, we first consider the effect of the earth’s atmosphere. On a scale of decreasing energy, gamma rays, cosmic rays, X-rays and...

Cryocoolers

What is a Cryocooler? A mechanism that can extract heat from an object (cooler) and by doing so draw its temperature down below approximately 150 Kelvin (cryo). — (Courtesy Dr. Willy Gully) What is the difference between a Cryocooler and a Cryostat? A cryostat is any device designed to maintain...

Latest in Ask the Experts

Benefit of cryotreatment of audio circuit boards and interconnecting cables

Does cryotreatment of audio circuit boards and interconnecting cables (copper, silver, gold) properly done, provide a permanent benefit?

Standards and codes for design of cryogenic equipment?

What standards and codes are used in the design of cryogenic equipment?

Cryogenic thermophysical property data

I am in search of information regarding cryogenic thermophysical property data, specifically, Thermal Conductivity, Thermal Expansion, Stiffness and Modulus, in the 20K range. My list of materials include: Ti-6AL-4V (ELI), Al 6061-T651, and Invar (36%, plus any other composition which might have data available). Other materials which would be helpful...

Issue with insulation for ventilation system

I am with the Goodrich Corporation, an Aerospace products manufacturer. We currently utilize a number of environmental chambers (LN2 based) for environmental type conformity testing.

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