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

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

Wind Tunnels

Dr. Robert Kilgore The development of the cryogenic wind tunnel is one of many significant breakthroughs in both cryogenics and wind-tunnel technology made during the past millennium. Interest in the development of high-speed commercial and military aircraft resulted in a review of problems of flow simulation in transonic wind tunnels...

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...

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?

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