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New Material Discovery Allows Study of Elusive Weyl Fermion

Researchers at the US Department of Energy's Ames Laboratory have discovered a new type of Weyl semimetal, a material that opens the way for further study of Weyl fermions, a type of massless elementary particle hypothesized by high-energy particle theory and potentially useful for creating high-speed electronic circuits and quantum...

Sting vs. MRI, Don’t Scan so Close to Me

Researchers at Canada's McGill University didn't turn on a red light, but managed nevertheless to lure musician Sting into a lab for an unusual neuroscience study based on his brain scans. The findings, published in the journal Neurocase, offer insights into how gifted individuals find connections between seemingly disparate thoughts...

O, Canada! Tips on CRN and International Code

Companies exporting to Canada must obtain a CRN, or Canadian Registration Number—issued by a Canadian provincial government such as Ontario (TSSA), Alberta (ABSA) or British Columbia (BC)—before shipping products to Canadian clients. It’s a process that can take from three to six months, and it is one that is often...

Lake Shore Unveils New Probe Arm

Lake Shore Cryotronics, Inc. (CSA CSM) is now offering for pre-order a unique terahertz-frequency probe arm option for its CPX, CPX-VF, CRX-4K and CRX-VF cryogenic probe stations. The arm enables precise probing and measurement of millimeter-wave devices at 75 to 110 GHz (WR10 band) or 140 to 220 GHz (WR5.1...

New Multi-Layer Insulation Hybrid is Supacool

Technical Fibre Products has launched of a new variant of its Supacool range of lightweight cryogenic tissues. It features a lightweight microfine glass spacer tissue co-wound with aluminum foil, forming the basis of multi-layer insulation or super insulation that can be inserted between the inner and outer walls of a...

Dark Matter Unseen in Hitomi’s Glimpse at Perseus Cluster

A large X-ray signal previously seen emanating from the Perseus galaxy cluster did not appear in the final data sent by the Hitomi spacecraft, casting a shadow over speculation that the anomalously bright signal might have come from dark matter.

Latest in Defining Cryogenics

Helium II

Helium II (He II) refers to the second liquid phase of the most abundant helium isotope (4He). Helium II is also referred to as superfluid helium. Helium II occurs once the temperature of the liquid helium drops below 2.17K. The phase transition between the first liquid phase of Helium (referred...

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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