Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

Cold Atoms Act as Distant Messengers

Particles can interact directly by repelling or attracting each other, but how do particles interact when far apart? Scientists at the University of Chicago have discovered that atoms can actually exchange information using intermediary particles. Such research represents the first time this particular phenomenon has been observed in a cold...

Cryo-EM Helps Decipher 3D Structure for Cancer Treatment

A research team from Columbia University and Nimbus Therapeutics has successfully determined the 3D structure of human ATP-citrate lyase (ACLY), a metabolic enzyme that plays a key role in cancer cell proliferation and other cellular processes.

Cryogenic Technique Reveals Fraudulent Food and Drugs

Engineers from the University of California, Riverside have developed "chronoprinting," a new technique that can detect fake drugs and food using videos recorded while samples undergo alterations. The technology requires only a few relatively inexpensive pieces of equipment, free software to accurately distinguish pure from inferior food or medicine and...

NASA’s JPL Seeking Applicants for First Space Accelerator

NASA's first aerospace accelerator program will select 10 startup companies to take part in a three-month pilot program to develop new technologies for space. Applications will be accepted through April 7. Selected teams will develop concepts and business plans over a three-month period and then pitch their results to the...

TRIUMF Receives Historic Canadian Investment

The Government of Canada has announced a five year and $292.7M investment supporting laboratory operations at TRIUMF (CSA CSM). The donation comes in response to TRIUMF's recently published Five-Year Plan 2020-2025 and represents the country's largest single investment there to date.

Fermilab Breaks Ground on PIP-II

Fermi National Accelerator Laboratory (CSA CSM) has officially broken ground on a major new particle accelerator project that will power cutting-edge physics experiments for many decades to come. When complete, PIP-II will become the heart of the laboratory’s accelerator complex, vastly improving what is already the world’s most powerful particle...

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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