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

ITER cryopump redesign saves time and money

A team of international experts has put the ITER final design of the neutral beam and Megavolt ITER Injector and Concept Advancement (MITICA) facility cryo-sorption pump under scrutiny in a thorough review.

Ames Laboratory leads with new cutting-edge NMR technology

The US Department of Energy’s (DOE) Ames Laboratory has announced that it will acquire a Dynamic Nuclear Polarization-NMR spectrometer, a giant step forward in the laboratory’s world-class solid state NMR capabilities.

Cooldown of Cryomodule 2 marks major achievement in Fermilab SRF program

On Tuesday, Nov. 12, Fermilab's Accelerator Division successfully cooled down Cryomodule 2, the first ILC-type cryomodule in which all component cavities were processed and tested in the United States, to a temperature of 2 kelvin.

MIT’s Marc Kastner nominated to head DOE Office of Science

The White House has announced that President Barack Obama intends to nominate MIT’s Marc Kastner to head the Department of Energy’s Office of Science, which manages much of the nation’s basic research on energy.

Dr. Naoya Shibata wins the 2013 Sir Martin Wood Prize

Dr. Naoya Shibata was presented the 2013 Sir Martin Wood Prize at the 2013 "Millennium Science Forum," organized by Oxford Instruments and held at the British Embassy in Tokyo on Wednesday, Nov. 13.

UWY Professor achieves breakthrough in understanding superconductivity properties

TeYu Chien, an assistant professor in the University of Wyoming’s Department of Physics and Astronomy, is the leading author of a recently published paper that settles a longtime debate about the relationship between superconductivity and magnetism.

Latest in Defining Cryogenics

Stability

Stability refers to the ability of a device employing superconductors to remain in its superconducting state after part of the superconductor transitions back to its normal conducting state due to a disturbance. While the concept can apply to many superconducting devices—transmission lines, generators, motors, etc.—it is most commonly considered in...

Cable-in-Conduit Conductors

Cable-in-Conduit Conductors (CICC) are a common form of superconducting cable used in large-scale applications. There are several varieties of CICCs, but they all consist of many small, stabilized superconducting wires contained within a conduit through which a coolant (typically supercritical He II) flows. Figure 1 shows the cross section of...

Bayonet Coupling

A bayonet coupling is a demountable joint that allows for quick and easy connection and disconnection of cryogenic components, including transfer lines, cryostats, liquefiers and refrigerators. Bayonets provide a number of advantages, chief among them the ability to connect and disconnect the bayonets while components they connect are still at...

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

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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