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

HEPTech: where academia meets industry

The high energy physics technology transfer network, or HEPTech, aims to bring together leading European high energy physics research institutions to provide academics and industry with a single point of access to the skills, capabilities, technologies and R&D opportunities of the high energy physics community in a highly collaborative open-science...

Elsevier’s new open access journal Heliyon now accepting submissions

Elsevier has announced the call for submissions for its new open access journal Heliyon. The journal will be a publishing platform for sound research developed in collaboration with the research community so as to offer researchers a new publishing option tailored to their needs.

US scientists celebrate the restart of the LHC

After two years of upgrades and repairs to the world's most powerful particle accelerator, proton beams once again circulated around the Large Hadron Collider (LHC). With the collider back in action, the more than 1,700 US scientists who work on LHC experiments are prepared to join thousands of their international...

NASA awards contract for test facilities operations, maintenance and engineering

NASA has selected HX5 Sierra, LLC, of Fort Walton Beach FL to provide operations, engineering and maintenance support services test facilities and laboratories for the agency's Glenn Research Center in Cleveland and Plum Brook Station in Sandusky OH.

NASA Glenn celebrates Hubble’s 25th anniversary

NASA's Glenn Research Center in Cleveland OH is celebrating the launch of the Hubble Space Telescope 25 years ago this April with several activities for children and adults to learn more about Hubble's amazing contributions over the last quarter century.

The dawn of DUNE

The neutrino experiment formerly known as LBNE has transformed. Since January, its collaboration has gained about 50 new member institutions, elected two new spokespersons and chosen a new name: Deep Underground Neutrino Experiment, or DUNE. The proposed experiment will span 800 miles and will be the most powerful tool in...

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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