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FormFactor Acquires High Precision Devices, Expands Cryogenic Test Capabilities

On October 28, FormFactor, a leading provider of essential test and measurement technologies along the full integrated circuit life cycle, announced it had completed the acquisition of High Precision Devices, Inc. (HPD, CSA CSM), a leader in precision cryogenic instruments. Located in Boulder CO, HPD is a respected supplier of...

WOLTE14 Postponed, Offering Virtual Option

Postponed from June 8-11, 2020, to April 12 - 15, 2021, the 14th edition of the Workshop on Low Temperature Electronics (WOLTE-14) will be held in Matera, a unique historical town on the patronage of a UNESCO world heritage site situated in southern Italy. In an announcement made online, the...

Samara Scientists Explore a Cryogenic Engine for Unmanned Aerial Vehicles

Scientists of the Samara National Research University in Samara, Russia, have started to develop a cryogenic engine that will use liquid nitrogen or liquefied natural gas as fuel. Announced in October, the team hopes that the engine will be able to power environmentally friendly vehicles in specially protected natural areas....

Refrigeration Systems for Quantum, Cryogenic Computing

Advances in quantum computing have been in the news due to the potential for extremely large speedups in solution times of some important applications such as decryption (code breaking), optimization or simulation of molecules and materials in which quantum-mechanical effects are important. Large-scale classical (digital) computers operating at cryogenic temperatures...

Chart Industries Acquires Business Assets from IC Biomedical, Worthington Industries

Chart Industries, Inc., (CSA CSM) announced on November 2 it had completed the acquisition of the microbulk cryogenic tank intellectual property, equipment, and other assets from IC Biomedical (“ICB”), a private entity. Chart acquired the business from IC Biomedical upon ICB’s acquisition of these assets and the cryobiological assets of...

Tengming Shen Wins Cryogenic Society of America’s Roger W. Boom Award, Presented at ASC

Dr. Tengming Shen, staff scientist, Division of Accelerator Technology and Applied Physics at Lawrence Berkeley National Laboratory, has been awarded the Roger W. Boom Award by the Cryogenics Society of America. The award was presented November 4 at the virtual 2020 Applied Superconductivity Conference.

Latest in Defining Cryogenics

Cold Compressors

A common way to provide cooling below the normal boiling point of helium (4.2K) is to reduce the pressure above the bath of liquid helium, thus also reducing the bath’s equilibrium saturation temperature. For example, to produce a 1.8K bath of liquid helium, the saturation pressure has to be reduced...

Kapitza Conductance

Kapitza conductance refers to the heat transfer between a solid surface and a fluid that covers that surface. Fundamentally, it describes the inherent difficulty in transferring energy from a solid to the fluid covering the solid surface. This phenomenon was first observed by P. L. Kapitza in 1941 while studying...

Thermosyphons

A thermosyphon (or thermosiphon) is a device that transfers heat via natural convection in a fluid. The natural convection is driven by gravity with the colder, denser fluid flowing downhill and the warmer, less dense fluid flowing back up. Thus, thermosyphons connect an object to be cooled with a reservoir...

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?

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