Exotic particles, chilled and trapped, form giant matter wave
A collaborative research group of physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave.
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Driving the magnet revolution for future accelerators
Over the years, engineers have found ways to cram more and more transistors onto a single integrated circuit. As a result of these improvements, they have been able to pack more computing power into smaller machines.
MRI offers preventive medicine for pipelines
Two UC-Berkeley engineers have developed an MRI machine that can examine the state of underground pipelines to check for corrosion.
CASIS salutes SpaceX on Dragon’s berth with ISS
The Center for the Advancement of Science in Space (CASIS), the nonprofit organization managing research on the International Space Station (ISS) US National Laboratory, congratulated SpaceX on the successful berthing of the Dragon capsule to the ISS on May 25.
AMSC receives exclusive right to fundamental HTS patent
AMSC announced on June 5 that it has acquired exclusive rights to a fundamental high temperature superconductor (HTS) patent in the US. The patent covers a broad range of second generation (2G) and similar HTS materials, wire and power-related applications.
Oxford Instruments installs superconducting magnet at UK’s synchrotron facility
Oxford Instruments has recently installed a state-of-the-art 14 Tesla superconducting magnet system for ultra-high-vacuum experiments at Diamond Light Source, the UK’s national synchrotron facility.
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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...
Magnetic Levitation
From http://www.superconductors.org. Magnetic-levitation is an application where superconductors perform extremely well. Transport vehicles such as trains can be made to “float” on strong superconducting magnets, virtually eliminating friction between the train and its tracks. Not only would conventional electromagnets waste much of the electrical energy as heat, they would have...
Superconductivity
From Superpower website. History of Superconductivity Superconductivity was discovered in 1911 by the Dutch physicist, Heike Kammerlingh Onnes when he was able to liquefy helium by cooling it to 4 Kelvin, or -452°F. This enabled him to cool other materials close to absolute zero and investigate their electrical properties. He...
Medical Applications of Cryogenics
Neutron Therapy Cryogenics is at the heart of nuclear accelerators. Accelerators such as Fermilab’s Tevatron make neutron therapy for cancer possible. From Fermilab Today 4/20/09: Fermilab currently offers neutron therapy. But staff at Fermilab designed and built the proton accelerator used by the nation’s first hospital-based treatment center to use...
Nuclear Physics
Al Zeller National Superconducting Cyclotron Lab (NSCL) at Michigan State University zeller@nscl.msu.edu Cryogenics has a long history in nuclear physics. The technology has its origins in the use of cold traps for maintaining a vacuum, which is required to prevent beam loss and for generating high voltages used in acceleration....
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?