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IEEE CSC Graduate Study Fellowship winners announced

The IEEE Council on Superconductivity (CSC) Awards Committee has announced the winners of the 2015 IEEE CSC Graduate Study Fellowship. The fellowship is awarded annually to a full-time graduate student pursuing a PhD (or equivalent) degree in the area of applied superconductivity and is intended to encourage students to enter...

LCLS-II Upgrade to Enable Pioneering Research in Many Fields

Cold Facts visited Fermi National Accelerator Laboratory recently to learn more about the lab's involvement in LCLS-II, a project that will provide a major upgrade to the functionality of the existing Linac Coherent Light Source (LCLS) at the Stanford Linear Accelerator Laboratory. LCLS-II involves several scientific institutions, features cutting-edge physics...

PIP-II to Advance Intense Particle Beam Physics

With the power of Proton Improvement Plan-II, Fermi National Accelerator Laboratory is planning to construct and operate the foremost facility in the world for particle physics utilizing intense beams.

Pump Design and Operation Tips from DH Industries

Pumps and their efficiencies will increase the heat load of a closed loop cryogenic cooling system, so it is important that these pumps be as efficient as possible to minimize cost and supply use. Francesco Dioguardi, Martijn Donkers and Harrie Vermeulen of DH Industries provide pump design and operation tips...

Development of HTS CORC Cables for High Field Magnets and Advanced Power Transmission

Dr. Danko van der Laan, the 2014 Roger W. Boom awardee, discusses the development of high temperature superconductors (HTS) and their applications in high field magnets and advanced power transmission. He also explains an approach to cable ReBCO tapes called Conductor on Round Core (CORC™) cables, which feature layers of...

Superconductivity record bolstered by magnetic data

Nature reports that scientists in Germany have observed the common molecule hydrogen sulfide superconducting at a record-breaking 203K (-70°C) when subjected to very high pressures. Researchers A. P. Drozdov, M. I. Eremets, I. A. Troyan, V. Ksenofontov and S. I. Shylin report their findings in their paper "Conventional superconductivity at...

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 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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