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

XENON1T Dark Matter Experiment Detects Unexplained Excess Events, Prepares Upgrades

Scientists from the international XENON collaboration announced on June 17 that data from their XENON1T detector, the world’s most sensitive dark matter experiment, shows a surprising excess of events. These events may suggest the existence of a new particle known as the solar axion or indicate previously unknown properties of...

TU Wien Researchers Discover New Magnetoelectric Effect

Physicists at TU Wien in Vienna have discovered a new magnetoelectric effect in an unexpected material: a so-called langasite made of lanthanum, gallium, silicon and oxygen doped with holmium atoms. The electrical properties of some crystals can be influenced by magnetic fields—and vice versa. These "magnetoelectric effects" can play an...

International Cryocooler Conference to be Held as All-Virtual Event

Due to the ongoing pandemic, organizers have moved the fall International Cryocoolers (ICC21) meeting conference to a totally virtual event to be held December 7-10, 2020. There will be no on-site attendance, but technical papers and poster sessions will be pre-recorded live and presented via Zoom®. Learn more and register...

New NASA Gears Can Withstand Impact, Freezing Temperatures during Lunar Missions

A joint NASA JPl/Caltech project is developing special gears that can withstand the extreme temperatures experienced during missions to the Moon and beyond. Many exploration destinations in our solar system are frigid and require hardware that can withstand the extreme cold. During NASA’s Artemis missions, temperatures at the Moon’s South...

Technifab Introduces Updated Automatic Dewar Filling Station

Technifab Products (CSA CSM), a producer of cryogenic equipment and systems, released the latest version of their Automatic Fill Station, the AFS-01. The system is designed to fill portable low pressure liquid nitrogen dewars from a pipe system or bulk tank. The AFS-01 puts an emphasis on three main points:...

APS designates Sanford Lab, Morgan State University as historic physics sites

On September 14, the American Physical Society (APS) announced it has designated Sanford Lab Underground Research Facility (SURF) and Morgan State University as two Historic Sites in physics. SURF, located in Lead SD, is being recognized for its role in neutrino research led by Ray Davis while Morgan State University...

Latest in Defining Cryogenics

Transfer Lines

Transfer lines may in some real sense be thought of as the cryogenic fluid analogy of current leads. While current leads carry electrical power to where it’s required in a cryogenic system, transfer lines do the same with cryogenic fluids. Transfer lines range in complexity from very simple U-tubes containing...

Zero Boiloff

Zero Boil Off cryostats are those that contain liquid cryogens but are designed to eliminate or vastly reduce the boil off of the liquid. These cryostats combine some of the advantages of Cryogen-Free systems (e.g. ease of use and long operational lifetime) with the advantages associated with a reservoir of liquid...

Cryomodule

Cryomodule is a term that is most commonly used to refer to cryostats that contain superconducting radio frequency (SRF) cavities. Such cavities are used to accelerate charged particle beams and are a major component of modern particle accelerators. Using the term cryomodule to refer to cryostats containing SRF cavities appears...

Latest in Cryo Central

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

Latest in Ask the Experts

Seeking recommendations for commercial sensors

I would like to measure vibrations in small LHe cryostats. Could anybody recommend commercial sensors which would be suitable for the purpose? I am interested in the frequency range between 1Hz and a couple of KHz, with particular attention to the low frequency side.

Estimating cost of carbon steel, pure helium storage tanks

In order to perform an indicative cost assessment of our helium cryogenic plant (still in the design phase), I need an estimation of the cost of carbon steel room temperature pure helium storage tanks. The storage pressure is 20 bar. Can anyone give me suggestions about how to estimate the...

Supplier of pressure sensor that works down to 4.2 K

In an actual experiment we would like to measure the static pressure in a cryostat in the range between one and four bar. Therefore we are looking for some (more or less) cheap pressure sensors that work in liquid helium in the pressure range up to five bar. Unfortunately all...

Looking for reference/textbook suggestions

Can you suggest some reference textbooks for practical thermodynamics applications in cryogenic fields? I need textbooks with cryogenics calculations and examples, dimensioning procedures, second principle applications in cryogenics, heat load calculations, cryogenic pump application, etc. Do such books exist? Does any similar source of information exist?

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