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ATLAS Measures Key Higgs Boson Interaction with High Precision

The ATLAS Collaboration has released new measurements of the Higgs-boson decay probability to tau leptons in its four major production modes: gluon fusion (ggF), vector-boson fusion (VBF), the associated production with a W or Z boson (WH, ZH), and the associated production with a top-quark pair (ttH).

Purdue-Designed Heat Transfer Experiment Arrives at International Space Station

On August 10, an Antares rocket launched from the Mid-Atlantic Regional Spaceport on Wallops Island VA. Atop the rocket was a Northrop-Grumman Cygnus spacecraft carrying 3,000 pounds of supplies for the astronauts aboard ISS, as well as the Flow Boiling and Condensation Experiment (FBCE) and three other science experiments. Cygnus...

Plug Power Breaks Ground on Green Hydrogen Production Plant in Georgia

On August 10, Plug Power Inc., a leading provider of turnkey hydrogen solutions for the global green hydrogen economy, broke ground on the site of a green hydrogen production plant in Camden County GA, where 15 tons of green liquid hydrogen will be produced per day.

Helion Energy Breaks Ground on Next-Generation Fusion Facility Site in Washington

Helion Energy (Helion), a clean energy company committed to creating a new era of zero-carbon electricity through fusion, broke ground on the next iteration of its fusion facility in Everett WA on July 27. The new facility will accelerate Helion’s efforts to build the world’s first commercially viable fusion power...

James Webb Passes Critical Mission Review for 2021 Launch, Final Testing Nearing Completion

The joint NASA/ESA/CSA James Webb Space Telescope (JWST) has passed its critical final mission analysis review — clearing the way for a late 2021 launch from the Guiana Space Centre in Kourou, French Guiana on an Arianespace Ariane 5 rocket.

CryoWorks Names New CEO, Timothy Mast, Jr.

On June 1, California-based CryoWorks, Inc. announced that the company’s board of directors has named Timothy Mast, Jr. as chief executive officer and president, effective immediately. Mr. Mast, Jr. has worked at CryoWorks since 2011 and has served as vice president of operations since February 2019. He succeeds Timothy Mast,...

Latest in Defining Cryogenics

Transfer Lines

Transfer lines may in some real sense be thought of as the cryogenic fluid analogy of current leads. While current leads carry electrical power to where it’s required in a cryogenic system, transfer lines do the same with cryogenic fluids. Transfer lines range in complexity from very simple U-tubes containing...

Zero Boiloff

Zero Boil Off cryostats are those that contain liquid cryogens but are designed to eliminate or vastly reduce the boil off of the liquid. These cryostats combine some of the advantages of Cryogen-Free systems (e.g. ease of use and long operational lifetime) with the advantages associated with a reservoir of liquid...

Cryomodule

Cryomodule is a term that is most commonly used to refer to cryostats that contain superconducting radio frequency (SRF) cavities. Such cavities are used to accelerate charged particle beams and are a major component of modern particle accelerators. Using the term cryomodule to refer to cryostats containing SRF cavities appears...

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

Power usage: cryogenic systems vs. regular refrigerators

A recent project highlighted to me that closed cycle cryogenic cooling systems use far more electrical power to reduce temperatures by a few watts than regular refrigerators. I am sure it must be something to do with the extra difficulty of removing the heat from the liquid nitrogen or similar...

Redundancy strategies for mechanical -80C freezers

I was wondering what kind of redundancy strategies are people using for their mechanical -80C freezers? I am aware of the following. Please add if you are doing something different. 1) 1 Backup freezer for every 10 freezers – Empty and maintained at -80C at all times 2) Backup C02...

Safety guidelines for handling cryo vessels of nitrogen

I am looking for any safety guidelines for handling cryogenic vessels of nitrogen indoors and outdoors. I am especially interested in recommendations for area monitors to detect leaks, flow detection devices, etc.

Method to move components in a cryogenic environment

Does anyone know of a method with which to reliably move components in a cryogenic environment? We are interested in moving detectors in a cryogenically cooled (2K) vacuum chamber, which is contained within a larger cryostat/isolation vacuum with thermal shields. As the desired horizontal or vertical displacement is between 10...

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