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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
C. S. Morgan, G. L. Powell
Nuclear Technology | Volume 35 | Number 2 | September 1977 | Pages 337-339
Pyrocarbon | Coated Particle Fuel / Fuel | doi.org/10.13182/NT77-A31893
Articles are hosted by Taylor and Francis Online.
Helium permeability of pyrocarbon (PyC) coatings of Biso fuel particles is evaluated by measuring helium content of fuel particles after heat treatment in a helium atmosphere. Fuel particles were annealed in a vacuum at 1800°C (2073 K) to remove any process helium before being annealed in a helium atmosphere. Helium release was monitored as the particles were individually broken in a vacuum chamber connected to a mass spectrograph sensitive to 10−14 mole of helium. Typical particles annealed in helium at atmospheric pressure contained 10−10 mole of gas. The inert gas content of the buffer layer is completely released when the PyC layer is cracked. Helium permeability was strongly temperature dependent and varied considerably with the properties of the PyC coating resulting from deposition conditions.