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Around the Labs – A Road Trip to Cryogenic Facilities

Cryogenics remains an integral part of research conducted at several Department of Energy National Labs, from novel cryostats used to cool telescope equipment to the dilution refrigerators driving nanoparticle studies. SLAC – Menlo Park CA The SLAC National Accelerator Laboratory, for example, is no stranger to cryogenics. Researchers there are...

Cryoport Signs Strategic Partnership Deal With Worthington Industries

Cryoport, Inc. has entered into a strategic partnership with Worthington Industries, bringing together two established cold chain companies. Cryoport provides logistics solutions for a range of industries including biopharma, animal health and reproductive medicine, while Worthington, through its recently-acquired CryoScience by Taylor Wharton product line, manufactures cold chain storage, transport...

Phase Transitions in the Extreme – Gallium Arsenide at 12mK

Researchers from Purdue University have demonstrated a phase transition that crosses two different phase categories, a result never observed before and one that could in time profoundly influence our understanding of matter and phases of matter. The transition from a topologically ordered to a broken symmetry phase was unexpected, and...

Bulk Storage and Shipping of Liquid Hydrogen is Hazardous

Hydrogen is very attractive as a green fuel because it burns in air to produce only water—and possibly some nitrogen oxides and hydrides—and therefore has a zero carbon footprint. As an energy store and fuel, liquid hydrogen has a high ratio of combustion energy per unit weight and is particularly...

Breakthrough Initiatives Announces Starshot, Its Light-Sail Starship of Tomorrow

Renowned cosmologist Stephen Hawking and other distinguished researchers joined internet investor and science philanthropist Yuri Milner at One World Observatory to announce a new Breakthrough Initiatives project focused on space exploration and the search for life in the Universe. Called Starshot, the $100 million research and engineering program aims to...

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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...

Cryogenic Electronics

Randall Kirschman, consulting physicist, Mountain View, California ExtElect@gmail.com Cryogenic electronics—the operation of electronic devices, circuits, and systems at cryogenic temperatures—has been a valuable technology for decades. Cryogenic electronics (also referred to as low-temperature electronics, or cold electronics) can be based on semiconductive devices, on superconductive devices, or on a combination...

Particle Physics: High Energy Physics

Cryogenics and High-Energy Physics 1. From symmetry magazine: http://www.symmetrymagazine.org/cms/?pid=1000627: Cryogenics is the study of how materials behave at temperatures near absolute zero. In high-energy particle accelerators, such frigid temperatures reduce the electrical resistance of wires in superconducting magnets, increasing the magnet strength and allowing faster particle acceleration. The same holds...

HTS Degaussing Systems

From the Spring 2009 issue of Cold Facts (Volume 25, Number 2): Thanks to a joint project by the US Navy and a number of industry partners, high temperature superconducting (HTS) technology is now at the heart of an advanced degaussing system aboard the USS Higgins at the naval station...

Magnetic Resonance Imaging

From http://www.superconductors.org: An area where superconductors can perform a life-saving function is in the field of biomagnetism. Doctors need a non-invasive means of determining what’s going on inside the human body. By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body’s water and...