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Fine-Tuned Cryogenic Clock Improves Computing Capabilities

Researchers from the University of Adelaide in South Australia have enhanced the cryogenic sapphire clock to achieve near attosecond capability. Also known as a microwave oscillator, the clock features a five cm cylinder-shaped crystal cooled to -269°C.

New Graphene Hybrid Exceeds DOE Goal for Hydrogen Storage

Layers of graphene separated by nanotube pillars of boron nitride may be a suitable material to store hydrogen fuel in cars, according to a new computational study from Rice University published in the journal Langmuir. The material held 14.77 percent of its weight in hydrogen at -321°F, exceeding both current...

New Study Shows Ultracold Electrons Forming Quantum Fluid State

A research collaboration between Princeton University and the University of Texas-Austin has demonstrated that electrons kept at very low temperatures can spontaneously begin to travel in identical elliptical paths on the surface of a crystal of bismuth, forming a quantum fluid state. Such behavior was anticipated theoretically during the past...

Experiment Achieves Strongest Coupling Between Light and Matter

Researchers at the University of Waterloo's Institute for Quantum Computing (IQC) in Ontario recorded an interaction between light and matter 10 times larger than previously seen, a coupling between photons and qubits so strong, the group says, that it opens the door to a realm of physics and applications unattainable...

Ames Scientist Receives APS McGroddy Prize

The American Physical Society (APS) has awarded Professor Paul C. Canfield, a senior scientist at the US Department of Energy's Ames Laboratory, with its James C. McGroddy Prize for New Materials. Over the past three decades, he has helped discover, understand and optimize materials with ferromagnetic and superconducting states as...

CUORE Ready for First Cooldown

Deep within a mountain in Italy, scientists have finished assembling the Cryogenic Underground Observatory for Rare Events (CUORE) and are now preparing to cool its detector to operating temperature for the first time. More than one decade in the making, the experiment will look for a rare process thought to...

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

History of Cryogenics

From the Fall 1999 issue of Cold Facts magazine Millennium Breakthroughs A variety of CSA members give different perspectives on the past millennium: What were the most significant breakthroughs in cryogenics during the past millennium? Prof. R.G. Scurlock, Kryos Technology, scurlock@soton.ac.uk (“Breakthrough” = way through obstacles — Oxford English Dictionary)...

Cryobiology

Andreas Sputtek Past President Society for Cryobiology sputtek@uke.uni-hamburg.de or http://www.sputtek.de/. The word cryobiology (from the Greek words “cryo” = cold, “bios” = life, and “logos” = science) literally signifies the science of life at low temperatures. In practice, this field comprises the study of any biological material or system (e.g.,...

Cryogenic Insulation

James E. Fesmire Cryogenics Test Laboratory NASA Kennedy Space Center james.e.fesmire@nasa.gov Introduction In today’s world, the use of cryogenics and low-temperature refrigeration is taking a more and more significant role. From the food industry, transportation, energy, and medical applications to the Space Shuttle, cryogenic liquids must be stored, handled, and...

Cryogenic Treatment of Materials

F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...

Latest in Ask the Experts

An Issue of Pressure and Flow Rate in a Supply Tank

Please help solve this problem: A supply tank requires a vaporizer to generate sufficient pressure to pump stored fluid up into a vehicle or tank. The available head is limited as the tank level falls and it is important to minimize the system pressure drop to maintain the desired flow...

Using MLI on VJ Line Joints or Cryo Storage Tanks

When installing Multi Layer Insulation (MLI) blankets on VJ line joints or cryo storage tanks should they be wrapped and tied down tight or loose? These are usually pre-cut to size. Also should they have an access hole at the point of where the molecular sieve is installed to help...

Separated layers of ice over a pipe

I want to know that why there are different layers of ice over a pipe carrying a cryogenic fluid, each layer separated with clear marks / lines? What do these layers signify?

Using nitrogen as a cryogen

Is it possible to achieve -200˚C using nitrogen as a cryogen?

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