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

FDA Clears ‘World’s First’ Portable, Low Cost MRI following Positive Clinical Research

The US Food and Drug Administration has provided clearance to the “world’s first” bedside MRI system. Connecticut-based Hyperfine said it will begin shipping its portable, low field modalities this summer. The machine’s 510(k) FDA clearance was granted as Yale researchers reported accurate and safe results from tests involving brain readings...

Linde Cryogenics Supplies First of Kind Helium Recovery System to Sumitomo Cryogenics

In late March, Linde Cryogenics (CSA CSM) delivered a modular helium recovery system to Sumitomo Cryogenics of America, Inc's (CSA CSM) Allentown PA production facility. By capturing and recycling helium from production operations, the system is expected to reduce consumption of purchased helium at the facility by 70%. The system...

SLAC Researchers Use Cryo-EM to Discover Giant Cavity in Key Tuberculosis Molecule

Researchers from the Department of Energy’s SLAC National Accelerator Laboratory using Cryo-EM technology have discovered a strange new feature of a protein that’s thought to be important in the treatment of tuberculosis. The protein contains a highly unusual “huge” interior pocket that appears capable of passing a wide range of...

Champaign-Urbana MTD Purchases Two Hydrogen Buses

The Champaign-Urbana Illinois Mass Transit District (MTD), has ordered two hydrogen fuel cell buses from New Flyer of America. The contract calls for New Flyer to supply two hydrogen fuel cell electric sixty-foot Xcelsior CHARGE H2™ heavy duty transit buses in the Champaign, Urbana and Savoy regions of the state....

Infertile Cancer Survivor Gives Birth Using Frozen, Lab-Matured Egg in Scientific ‘Breakthrough’

In a world first, a French woman has given birth after freezing, thawing and fertilizing her immature eggs in a procedure called in vitro maturation, according to a study published in the journal Annals of Oncology. Doctors say this development "is particularly important for cancer patients, but it’s also a...

Quantum Design and Sumitomo Cryogenics of America Announce Collaboration with Helium Compressor

Developed jointly by Quantum Design and SHI Cryogenics (CSA CSMs), the new R-98 double inverter-driven helium compressor, the first in SHI’s new Revolution™ Series, is compatible with a range of their Gifford-McMahon and Pulse Tube two-stage cryocoolers. It represents the latest in “energy smart” helium compressors that reduce the operating...

Latest in Defining Cryogenics

Dewar

A dewar is a type of cryostat named after Sir James Dewar, the researcher who first developed the concept of a vacuum insulated container with silvered walls to reflect thermal radiation. Dewar was the first to liquefy hydrogen, and he created the device to store his discovery. The thermos bottle...

Stirling and Gifford-McMahon Cryocoolers

Stirling and Gifford-McMahon (GM) cryocoolers are two of the most commonly used cryocoolers in cryogenics. Both devices have a significant industrial base and operate at a wide range of temperatures and capacities. The thermodynamic cycles for both of these cryocoolers are quite similar. The Stirling cycle consists of a compressor,...

Liquefied Natural Gas (LNG)

A significant commercial application of cryogenics is the liquefaction, transport and storage of natural gas. Liquefied Natural Gas (LNG) is generally 95 percent methane with a few percent ethane and much lower concentrations of propane and butane. LNG liquefies at 111.6 K. Unlike many applications of cryogenics, the motivation for...

Latest in Cryo Central

Cryogenic Electronics

Randall Kirschman, consulting physicist, Mountain View, California ExtElect@gmail.com Cryogenic electronics—the operation of electronic devices, circuits, and systems at cryogenic temperatures—has been a valuable technology for decades. Cryogenic electronics (also referred to as low-temperature electronics, or cold electronics) can be based on semiconductive devices, on superconductive devices, or on a combination...

Particle Physics: High Energy Physics

Cryogenics and High-Energy Physics 1. From symmetry magazine: http://www.symmetrymagazine.org/cms/?pid=1000627: Cryogenics is the study of how materials behave at temperatures near absolute zero. In high-energy particle accelerators, such frigid temperatures reduce the electrical resistance of wires in superconducting magnets, increasing the magnet strength and allowing faster particle acceleration. The same holds...

HTS Degaussing Systems

From the Spring 2009 issue of Cold Facts (Volume 25, Number 2): Thanks to a joint project by the US Navy and a number of industry partners, high temperature superconducting (HTS) technology is now at the heart of an advanced degaussing system aboard the USS Higgins at the naval station...

Magnetic Resonance Imaging

From http://www.superconductors.org: An area where superconductors can perform a life-saving function is in the field of biomagnetism. Doctors need a non-invasive means of determining what’s going on inside the human body. By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body’s water and...

Latest in Ask the Experts

Power usage: cryogenic systems vs. regular refrigerators

A recent project highlighted to me that closed cycle cryogenic cooling systems use far more electrical power to reduce temperatures by a few watts than regular refrigerators. I am sure it must be something to do with the extra difficulty of removing the heat from the liquid nitrogen or similar...

Redundancy strategies for mechanical -80C freezers

I was wondering what kind of redundancy strategies are people using for their mechanical -80C freezers? I am aware of the following. Please add if you are doing something different. 1) 1 Backup freezer for every 10 freezers – Empty and maintained at -80C at all times 2) Backup C02...

Safety guidelines for handling cryo vessels of nitrogen

I am looking for any safety guidelines for handling cryogenic vessels of nitrogen indoors and outdoors. I am especially interested in recommendations for area monitors to detect leaks, flow detection devices, etc.

Method to move components in a cryogenic environment

Does anyone know of a method with which to reliably move components in a cryogenic environment? We are interested in moving detectors in a cryogenically cooled (2K) vacuum chamber, which is contained within a larger cryostat/isolation vacuum with thermal shields. As the desired horizontal or vertical displacement is between 10...

CATEGORIES