Cold Facts Digital – Page 61 – The go-to place for Cryogenics and Superconductivity

Glen and colleague at NASA, Cape Canaveral. Credit: McIntosh Family Collection

A Salute to an Old Friend, Glen McIntosh-1925-2025

As they say, oftentimes in life we don’t know what we’ve got until it’s gone. And only later, upon reflection, do we come to realize and appreciate what we had. Such is the case with my old friend Glen McIntosh. I first met Glen in about 1995, when applying for...

Dylan Temples. Credit: Dan Svoboda, Fermilab

Fermilab’s Lederman Fellows Drive Quantum Research to Discover Dark Matter

A trio of Lederman fellows at Fermilab are developing ways to use quantum technology to probe the universe for dark matter and other physics phenomena. While doing so, they are sharing their enthusiasm for their work to inspire the next generation of scientists. Fermi National Accelerator Laboratory is a leader...

The patented Cryostat-the-First (CS1) insulation test apparatus, of the original NASA CTL, in 1998. Credit: Fesmire

Remembering Dr. Stan Augustynowicz, a Cryogenics Pioneer

Stanisław (“Stan”) was my mentor, business partner, and dear friend. He was a distinguished colleague, a visionary trailblazer, and a true leader in cryogenics. Stan played a pivotal role in the Cryogenic Society of America as Director of International Affairs and Board Member, and he served as VP-USA for the...

HyPStore project team at the University of Southern Queensland. Credit: HyPStore

HyPStore’s Cryogenics-at-the-Core Vision for Liquid Hydrogen Storage

As global industries push toward decarbonization, hydrogen has re-emerged as a promising energy carrier. From aviation to long-haul trucking, hydrogen offers a zero-carbon fuel alternative that could reshape mobility. But unlocking its full potential depends on solving one of its biggest hurdles: storage. Hydrogen is challenging to contain, particularly in...

Techno-Economics of Liquid Hydrogen Supply for Australian Antarctic Operations

Antarctic research productivity relies on consistent access to energy. Increased availability of cheaper and cleaner energy could enhance the research capacity at Antarctic stations and expand the frequency of research flights using aircraft such as the Basler BT-67 (a modified DC3) to map climate change impacts on glaciers. The Australian...

Meet the 2025 Young Professionals

Qian Bao, 37 What is your educational and professional background? I completed my undergraduate studies in Mechanical Engineering at Shanghai Jiaotong University, China. Following that, I earned my Master’s degree from Tohoku University in Japan, where my research focused on computational fluid dynamics simulations involving two-phase flow. Specifically, I worked...

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

Cryogenic Electronics

Randall Kirschman, consulting physicist, Mountain View, California ExtElect@gmail.com Cryogenic electronics—the operation of electronic devices, circuits, and systems at cryogenic temperatures—has been a valuable technology for decades. Cryogenic electronics (also referred to as low-temperature electronics, or cold electronics) can be based on semiconductive devices, on superconductive devices, or on a combination...

Particle Physics: High Energy Physics

Cryogenics and High-Energy Physics 1. From symmetry magazine: http://www.symmetrymagazine.org/cms/?pid=1000627: Cryogenics is the study of how materials behave at temperatures near absolute zero. In high-energy particle accelerators, such frigid temperatures reduce the electrical resistance of wires in superconducting magnets, increasing the magnet strength and allowing faster particle acceleration. The same holds...

HTS Degaussing Systems

From the Spring 2009 issue of Cold Facts (Volume 25, Number 2): Thanks to a joint project by the US Navy and a number of industry partners, high temperature superconducting (HTS) technology is now at the heart of an advanced degaussing system aboard the USS Higgins at the naval station...

Magnetic Resonance Imaging

From http://www.superconductors.org: An area where superconductors can perform a life-saving function is in the field of biomagnetism. Doctors need a non-invasive means of determining what’s going on inside the human body. By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body’s water 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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