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

SHI Cryogenics Group: Promoting Emission-Reducing Initiatives for a More Sustainable Society

Whether designing shield coolers for life-saving MRIs, cryopumps for the latest smart device chips, or cryocoolers essential for hydrogen transportation, the SHI Cryogenics Group has been at the forefront of pioneering cryogenic technology for over 60 years. As an integral part of the Industrial Machinery Division of Sumitomo Heavy Industries, Ltd....

What’s the Matter? STAR Cryoelectronics Builds Superconducting Quantum Sensors for X-ray Analysis and Dark Matter Searches

STAR Cryoelectronics, founded in 1999, is a leading worldwide supplier of advanced ultrasensitive quantum sensors and X-ray detectors based on superconductors and related control and readout electronics. The company also offers custom thin-film foundry services for superconductor electronics applications, cryogen-free, adiabatic demagnetization refrigerator (ADR) cryostats, and high-resolution spectrometers based on...

KEYCOM Celebrates 30 Years of Worldwide Industry Standards

The computing elements of a quantum computer can only be operated properly when they are free of electronic noise. In order to achieve this state, it is necessary to realize an ultralow temperature environment in the millikelvins at a minimum. However, it is not enough to simply provide a dilution...

Novel Superconducting Magnet Thrusters to be Tested Out on Space Station

A New Zealand research institute and U.S. commercial firm Nanoracks are combining to send a superconducting magnet technology demonstrator to the International Space Station to test a novel type of space propulsion. The Paihau—Robinson Research Institute intends to test a type of electric space thruster known as applied-field magneto plasma dynamic...

Blood Banks: Cryogenic Blast Freezing to -90°C in Minutes Increases Throughput

Blood banks utilize freezers to rapidly freeze and store a range of thermally sensitive products such as blood plasma and cryoprecipitate. However, conventional compressor-based freezers can take hours to reach the ultra-low target temperature, slowing processing to a level that may not be sufficient for many operations. The challenge is...

Cryogenics Specialist Orders First Satellite for Detecting Methane Leaks

Absolut Group, a French cryogenic technology provider, said Dec. 7 it has ordered a demo nanosatellite for a constellation that would use sensors at very low temperatures to detect greenhouse gas leaks. The company’s newly created Absolut Sensing subsidiary ordered the chassis for a 16U satellite it calls Gen1 from Lithuania’s...

Latest in Defining Cryogenics

Liquid Hydrogen

Hydrogen becomes a liquid at 20K and 1 bar. Liquid hydrogen (LH2) is an important substance in industry, transportation and research. Industrial uses of hydrogen include applications in the electronics, glass, chemical and metal processing fields. In these applications, the hydrogen is generally used as a room temperature gas but...

Superconducting Radiofrequency Cavities

Superconducting radio frequency (SRF) cavities represent an important application of cryogenics and superconductivity. SRF cavities are a technology for accelerating charged particle beams via the transfer of radiofrequency (RF) energy to the beams via resonant structures. As such, they are frequently found in large particle accelerators used for scientific research....

Thermal Radiation Shields

Actively cooled thermal radiation shields are a common feature of cryostats whose lowest temperature is less than 77K. These shields, which typically operate at temperatures between that of LN2 and 40K, block thermal radiation from higher temperatures from reaching lower temperature cryogenic components or fluids. Since the heat radiated from...

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

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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