Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

Par-Baked Goods Gain Ground with Cryogenic Freezing

Fresh-from-the-oven signature breads at retail were once almost the exclusive province of fine restaurants, but the rise of commercial par-baking has made it possible for any restaurateur or food retailer to produce even artisan breads without skilled labor. "Cryogenic freezing of par-baked goods is giving commercial bakers who have only...

UTA Hosts DUNE16 Collaboration Meeting

Over 150 leading international physicists convened in early January at The University of Texas at Arlington to collaborate on the game-changing particle physics experiment known as the Deep Underground Neutrino Experiment, or DUNE.

IUPAC adds four superheavy elements to periodic table

The International Union for Pure and Applied Chemistry (IUPAC) welcomed the new year with a bang, confirming the discovery of four new elements and once again shaking up the periodic table. Elements 113, 115, 117 and 118 complete the seventh row of the table. Each has been assigned a temporary...

Lockheed cuts F-35 part cost with cryogenic machining system

Lockheed Martin engineers have demonstrated a 52 percent increase in cutting speeds associated with roughing and finishing operations on large titanium airframe components for the F-35 program. The tests made use of an Okuma MA-600HII horizontal machining center equipped with 5ME’s patented cryogenic machining system.

NIST researchers enhance photon detection accuracy

National Institute of Standards and Technology (NIST) researchers announced on January 5 advances in the fabrication of superconducting nanowires that improve the precision of detecting individual particles of light by 74 picoseconds.

Oxford and Zurich Instruments collaborate to improve low temperature measurements

Oxford Instruments NanoScience (CSA CSM) on January 7 announced a new technical collaboration with Zurich Instruments, a leader for digital lock-in amplifiers, focused on combining equipment from both companies in order to reduce the time between installation and measurement in cryogenic systems.

Latest in Defining Cryogenics

Regenerators

Regenerators or regenerative heat exchangers are a key component of cryocoolers such as pulse tube cryocoolers (Cold Facts, August 2014). Regenerator performance greatly affects the coefficient of performance of cryocoolers. Improvements in regenerator design and, in particular, regenerator materials have been an important factor in the improvement of the performance...

Pulse Tube Cryocoolers

The development of pulse tube cryocoolers has been a significant topic of research and development over the past 20 or so years. Pulse tube cryocoolers have a number of advantages over other types of cryocoolers and are now available commercially. In order to understand pulse tube cryocoolers, it’s best to...

Thermal Expansion

Thermal expansion refers to the change in size (length or volume) that a material undergoes as its temperature changes. In cryogenic systems this effect can be quite large and must be allowed for in the design. In isotropic materials, which include most engineering materials, the thermal expansion is the same...

Latest in Cryo Central

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...

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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