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

Helium Discovered in Tanzania, Link to Volcanic Activity Verified

A new approach to gas exploration has uncovered a huge helium gas field in Tanzania, a discovery that could address the increasingly critical shortage of this vital yet rare element. A research group from Oxford and Durham universities developed the approach, together with Helium One, a Norway-headquartered helium exploration company.

SCAI Announces Collaboration Agreement with SynSysCo

Sumitomo (SHI) Cryogenics of America, Inc. (SCAI), a CSA CSM, has announced a joint collaboration with Synergy Systems Corp (SynSysCo) for the distribution and service of Sumitomo’s Marathon® CP Cryopumps across North America.

Titan Shines Light on High-Temperature Superconductor Pathway

Scientists from the US Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL) (CSA CSM) have identified an alternative route to superconducting for copper oxides, or cuprates, in the pseudogap phase, an in-between phase before superconductivity in which cuprates exhibit both insulating and conducting properties.

Remembering Helen Edwards

Helen Edwards, distinguished and highly regarded scientist at Fermi National Accelerator Laboratory (CSA CSM), died on June 21 at the age of 80. Edwards was the leader in the design, construction, commissioning and operation of the Tevatron collider. In recent years she made significant contributions to the development of high-gradient,...

Brookhaven Powers Magnet Idle for Eight Years

A team of physicists and engineers at the US Department of Energy’s Brookhaven National Laboratory has completed preliminary tests of a 20-ton cylindrical magnet that could form the heart of an upgraded particle detector at the Relativistic Heavy Ion Collider (RHIC). The goal was to see if the superconducting solenoid...

Cryogenic Systems, from LHC to FCC

The Large Hadron Collider (LHC) features one of the largest cryogenic systems in the world. Cryogenics plays an indispensable role in applied superconductivity, and the development of cryogenics for accelerators has allowed researchers to efficiently cool both the high-field magnets presently used at the LHC and also those being developed...

Latest in Defining Cryogenics

Regenerators

Regenerators or regenerative heat exchangers are a key component of cryocoolers such as pulse tube cryocoolers (Cold Facts, August 2014). Regenerator performance greatly affects the coefficient of performance of cryocoolers. Improvements in regenerator design and, in particular, regenerator materials have been an important factor in the improvement of the performance...

Pulse Tube Cryocoolers

The development of pulse tube cryocoolers has been a significant topic of research and development over the past 20 or so years. Pulse tube cryocoolers have a number of advantages over other types of cryocoolers and are now available commercially. In order to understand pulse tube cryocoolers, it’s best to...

Thermal Expansion

Thermal expansion refers to the change in size (length or volume) that a material undergoes as its temperature changes. In cryogenic systems this effect can be quite large and must be allowed for in the design. In isotropic materials, which include most engineering materials, the thermal expansion is the same...

Latest in Cryo Central

Cryogenic Treatment of Materials

F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...

Cryogenics in Space

Peter Kittel University of California-Berkeley pkittel@cal.berkeley.edu Space Cryogenics is the application of cryogenics to space missions. These applications fall into two broad areas, supporting space science missions and supporting the space transportation infrastructure. Science applications: The atmosphere is opaque to much of the electro-magnetic spectrum. In space, the absence of...

Cryosurgery

Review of Cryosurgery Boris Rubinsky, PhD Hebrew University School of Science and Engineering Research Center for Biomedical Engineering 78b Ross Building Givat Ram, Jerusalem 91904 Israel rubinsky@cs.huji.ac.il as published in Annual Review of Biomedical Engineering, August 2000, Vol. 2, pp. 157-187. Abstract: Cryosurgery is a surgical technique that employs freezing...

Liquefied Natural Gas

Liquefied Natural Gas as it relates to the Field of Cryogenics John W. Bonn VJ Systems, LLC johnbonn@vjsystems-lic.com Today the world is looking for a cleaner fuel and Liquefied Natural Gas (LNG) plays a large part in achieving this goal. LNG in a liquid form is at -162°C (-259°F) 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?

CATEGORIES