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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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.
Robert L. Long
Nuclear Technology | Volume 6 | Number 1 | January 1969 | Pages 8-15
Technical Papers and Note | doi.org/10.13182/NT69-A28262
Articles are hosted by Taylor and Francis Online.
Measurements of the reactivity contributions of a number of materials have been made in the 1.5-in.-diam glory hole of the Sandia Pulsed Reactor II (SPR II). In similar measurements at Los Alamos Scientific Laboratory in Godiva, materials with very low absorption cross sections had a positive reactivity effect at the core center, but at the center of the SPR II glory hole, the same materials produced negative reactivity effects. The differences are probably due to changes in the neutron energy spectrum and scattering contributions. Results of prompt burst operations with samples in the glory hole show that changes of several cents can readily occur in the reactivity worth of the burst rod.