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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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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.
R. Chawla
Nuclear Technology | Volume 52 | Number 2 | February 1981 | Pages 306-309
Technical Note | Fission Reactor | doi.org/10.13182/NT81-A32673
Articles are hosted by Taylor and Francis Online.
The minimum overall size of a reflected pebble-bed reactor is, in general, considerably smaller than that of the corresponding bare-critical assembly. For a reactor fueled with low-enriched uranium fuel elements at average burnup, the minimum outer radius for the reflected system was found to be up to 20% smaller than the bare-critical radius. The fact that the graphite reflector can effectively be so much“more reactive” than core material in the outer regions of such a reactor is shown to be largely a consequence of the relatively high degree of voidage (∼40%) inherent in pebble-bed cores.