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Used MRI magnets get a second chance at life in high energy physics experiments

Researchers at the US Department of Energy's Argonne National Laboratory recently acquired two decommissioned magnets from magnetic resonance imaging (MRI) scanners from hospitals in Minnesota and California that will find a new home as proving grounds for instruments used in high energy and nuclear physics experiments. The two new magnets...

Physicist Peter Winter wins DOE Early Career Award

High energy physicist Peter Winter of the US Department of Energy's (DOE) Argonne National Laboratory has received a DOE Early Career Award, a prestigious five-year research grant totaling $2.5 million. The grant will help to fund Winter's contributions to the muon g-2 experiment currently being assembled at Fermi National Accelerator...

NASA issues request for information on Stirling power systems

NASA’s Science Mission Directorate is seeking information on Stirling power systems and technologies that could be developed into a space-based power system that would provide between 100-500 Watts of electricity for future deep space missions. In partnership with the Department of Energy, a Request for Information (RFI) posted on June...

X-ray ptychography, fluorescence microscopy combo sheds new light on trace elements

Using the Advanced Photon Source, a US Department of Energy Office of Science User Facility at Argonne National Laboratory (CSA Corporate Sustaining Member), a team of researchers demonstrated unparalleled sensitivity for measuring the distribution of trace elements in thicker specimens at cryogenic temperatures, in this case at about -260°F. They...

Toward a resolution of the proton form factor problem

In the paper "Towards a Resolution of the Proton Form Factor Problem: New Electron and Positron Scattering Data" published in Physical Review Letters, D. Adikaram et al. report findings that may resolve a puzzle that has confounded physicists for the last decade: the baffling discrepancy between measurements of two different...

MIT team creates ultracold molecules

Experimental physicists at MIT have successfully cooled molecules in a gas of sodium potassium (NaK) to a temperature of 500 nanokelvins, inducing the strongest dipoles in ultracold molecules yet. Their findings, published in Physical Review Letters, support the possibility that molecules may start to exhibit exotic states of matter at...

Latest in Defining Cryogenics

Liquid Hydrogen

Hydrogen becomes a liquid at 20K and 1 bar. Liquid hydrogen (LH2) is an important substance in industry, transportation and research. Industrial uses of hydrogen include applications in the electronics, glass, chemical and metal processing fields. In these applications, the hydrogen is generally used as a room temperature gas but...

Superconducting Radiofrequency Cavities

Superconducting radio frequency (SRF) cavities represent an important application of cryogenics and superconductivity. SRF cavities are a technology for accelerating charged particle beams via the transfer of radiofrequency (RF) energy to the beams via resonant structures. As such, they are frequently found in large particle accelerators used for scientific research....

Thermal Radiation Shields

Actively cooled thermal radiation shields are a common feature of cryostats whose lowest temperature is less than 77K. These shields, which typically operate at temperatures between that of LN2 and 40K, block thermal radiation from higher temperatures from reaching lower temperature cryogenic components or fluids. Since the heat radiated from...

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

Data on thermal expansion down to 40K

For our cold mechanics, we use ball bearings from ADR from stainless steel which is AISI 440C, DIN X105CrMo17, W.Nr. 1.4125. Does anyone know the data of thermal expansion of this material down to 40 K?

Difference between radar and servo gauge for LNG tanks?

What is the difference between radar and servo gauge for LNG tanks? How do I understand the gauging system for LNG tanks and choose the best one?

Materials for "cryogenics in spacetech"?

I had to take a seminar in a national competition that is to be held in our country on the topic “cryogenics in spacetech.” For this, I need some materials related to it, and I thought to approach you for help. Can you suggest some relevant materials?

Information on how the emissivity of the panel changes with air fouling?

I work at a facility with a large thermal vacuum chamber. We are using both nitrogen and helium shrouds.

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