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Women in Cryogenics and Superconductivity 2020

CSA celebrates women in cryogenics and superconductivity. In this feature, seven women in positions across the industry discuss current projects, how they entered the field and their thoughts on attracting more women to the profession.

Honeywell Announces Development of Record-Setting Quantum Computer

Honeywell Quantum Solutions, a division of Honeywell International, Inc., has announced the development of an unprecedented quantum computing system. Slated for a mid-2020 release, the company says its quantum system has doubled the quantum volume of the next fastest system at QV (Quantum volume) 64. The system is the first...

Best Practices for Handling and Monitoring LN2 Containers Containing Reproductive Materials

Last year, after the 2018 loss of cryogenically stored human embryos at two plants in California and Ohio in 2018, experts were forced to reconsider the standards by which these facilities maintained their cryogenic systems. Eggschain, an Austin TX-based startup using blockchain technology to provide fertility clinic users and facilities...

MR Solutions Makes Imaging More Accessible outside Clinical Health Applications

MR Solutions, a Guildford, UK-based manufacturer, produces superconducting, cryogen-free, “benchtop” magnetic resonance imaging (MRI) systems. The company, founded by Dr. David Taylor in 1999, specializes in machines built for use outside traditional healthcare applications and has developed a range of preclinical imaging systems with innumerable applications. In the past, this...

Energy Gap Modulations Observed in a Cuprate Superconductor

A team studying high temperature superconductors at the US Department of Energy’s Brookhaven National Laboratory has discovered definitive evidence for the existence of a state of matter known as a pair density wave, first predicted by theorists some 50 years ago. Their results, published in the journal Nature on April...

Researchers Observe Ultrafast Processes of Single Molecules in Liquid Helium for the First Time

A team at the Femtosecond Dynamics research group at the Institute of Experimental Physics at TU Graz, in Graz, Austria, has visualized the movement of single, isolated molecules inside a helium droplet for the first time. The findings, which have implications for future experiments in visualizing processes within excited molecules,...

Latest in Defining Cryogenics

Joule-Thomson Effect

The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...

Current Leads

One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...

Multilayer Insulation

Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...

Latest in Cryo Central

Cryogenic Treatment of Materials

F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...

Cryogenics in Space

Peter Kittel University of California-Berkeley pkittel@cal.berkeley.edu Space Cryogenics is the application of cryogenics to space missions. These applications fall into two broad areas, supporting space science missions and supporting the space transportation infrastructure. Science applications: The atmosphere is opaque to much of the electro-magnetic spectrum. In space, the absence of...

Cryosurgery

Review of Cryosurgery Boris Rubinsky, PhD Hebrew University School of Science and Engineering Research Center for Biomedical Engineering 78b Ross Building Givat Ram, Jerusalem 91904 Israel rubinsky@cs.huji.ac.il as published in Annual Review of Biomedical Engineering, August 2000, Vol. 2, pp. 157-187. Abstract: Cryosurgery is a surgical technique that employs freezing...

Liquefied Natural Gas

Liquefied Natural Gas as it relates to the Field of Cryogenics John W. Bonn VJ Systems, LLC johnbonn@vjsystems-lic.com Today the world is looking for a cleaner fuel and Liquefied Natural Gas (LNG) plays a large part in achieving this goal. LNG in a liquid form is at -162°C (-259°F) and...

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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