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

US and India Expand Partnership in Search of Neutrinos

Scientists from the United States and India have a long history of scientific collaboration—including the discovery of the top quark— and now US Secretary of Energy Rick Perry and India’s Atomic Energy Secretary Dr. Sekhar Basu have signed an agreement to expand cutting-edge neutrino science projects underway in both countries.

MiniBooNE Probes the Nucleus with Muon Neutrinos

Scientists working on the MiniBooNE experiment at Fermi National Accelerator Laboratory (CSA CSM) report that they were able to identify exactly-known-energy muon neutrinos hitting the atoms at the heart of the particle detector. The result, published in Physical Review Letters, eliminates a major source of uncertainty when testing theoretical models...

UH Scientists Working on Liquid Argon System for Dark Matter Experiment in Italy

The University of Houston is helping to develop technology for DarkSide, a dark matter experiment at Italy's Gran Sasso National Laboratory. The UH team is both upgrading the DarkSide program’s first physics detector and working on an upgrade that will hold 3,800 gallons of liquid argon.

IARPA Moving Forward with SuperTools Project

The Intelligence Advanced Research Projects Activity (IARPA) has announced research contracts for its “SuperTools” program, a multi-year research effort to develop comprehensive software tools for designing and analyzing superconducting electronics circuits.

Physicists Build New Molecules in Ultracold Soup

Using lasers, a team of US and Austrian physicists have coaxed ultracold strontium atoms into complex “Rydberg polarons." The molecules are only stable near absolute zero, where the millikelvin temperatures keep the constituent atoms still long enough to become “glued together” in new, complex structures.

Global Physics Photowalk 2018

Major science laboratories from around the world have announced the 2018 Global Physics Photowalk, a competition open to amateur and professional photographers. For the event, physics facilities in Asia, Australia, Europe and North America will open their doors for a rare opportunity to see behind the scenes of some of...

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

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

Latest in Ask the Experts

Suppliers of regenerator materials

I was looking for suppliers of regenerator materials. Can you please provide a list of vendors for: • Lead spheres • Bronze screen discs • Rare earth materials and spheres Thank you in advance for any help you can provide.

Containing ice accumulation while recovering helium

We are implementing a system to recover helium from our Janis ST-500 continuous flow LHe cryostat. The recovery system uses standard 1/4″ plastic tubing, which we connect directly to the cryostat’s exhaust port. The problem with this setup is that the gas is still quite cold as it leaves the...

Looking for some advice regarding cryogenic modeling in ANSYS FEA software

I am looking for some advice regarding cryogenic modeling in ANSYS FEA software. I have been trying to use the Transient Thermal module, in workbench 14.5, to model the cooling of a device in a dilution fridge. I have approximate values for the cooling power of each plate in the...

Compensators and/or accumulators: Are they used in cryogenics?

Are compensators and/or accumulators, high or low pressure, used in cryogenics? Are they used in space?

CATEGORIES