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Mattia Checchin earns first prize at SRF 2015 for poster on accelerator cavity work

Mattia Checchin, a PhD student at the Illinois Institute of Technology conducting his thesis research at Fermilab, won first prize for his poster on superconducting radio frequency (SRF) accelerator cavity performance at the recent 17th International Conference on Radio Frequency Superconductivity (SRF 2015) in Whistler, Canada.

New multi-SQUID device cuts costs, improves sensitivity

Physicists in the United Kingdom have built a multi-SQUID device that can operate at 77K, the boiling point of liquid nitrogen. According to research published in Applied Physics Letters, the new device outperforms the industry standard niobium/aluminium trilayer single-SQUIDS maintained at 4.2K. "Since our SQUID arrays operate at 77K using...

Is magnetic cooling the future of cool?

Ames Laboratory scientists almost 20 years ago announced groundbreaking progress in magnetic refrigeration and yet there are still no known commercially available products that use a magnetic cooling system. Magnetic cooling exploits the magnetocaloric effect, a temperature change of a material caused by exposing it to a changing magnetic field,...

Master Bond announces new one component epoxy

Master Bond on October 13 unveiled a new single part adhesive sealant for use in a variety of applications in aerospace, electronic, optical, specialty OEM and related industries. The Master Bond Supreme 10HTF-1 offers cryogenic serviceability from 4K to +400°F and resists an array of chemicals such as water, fuels,...

New atomic absorption spectrometer helps redefine the kelvin

A team of Australian scientists has developed an atomic absorption spectrometer that provides a new way to determine Boltzmann’s constant, a number that relates the motion of an individual atom to its temperature. The research, published in Nature Communication contributes to a worldwide scientific effort to redefine the kelvin, the...

DOE announces new accelerator stewardship funding opportunities

The US Department of Energy made available an estimated $4 million in grants on October 13 with a Funding Opportunity Announcement (FOA) for research opportunities associated with its Accelerator R&D Stewardship Program. Research funded under this FOA could lead to advances is High Energy Physics (HEP), but the grants are...

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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