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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.
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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.
J. A. Horak, T. H. Blewitt
Nuclear Technology | Volume 27 | Number 3 | November 1975 | Pages 416-438
Technical Paper | Material | doi.org/10.13182/NT75-A24315
Articles are hosted by Taylor and Francis Online.
The concentrations of lattice point defects produced by thermal-neutron and fast-neutron irradiation of copper, nickel, iron, titanium, and palladium at 4.5 K have been measured resisto-metrically, and the values are compared with the theoretically predicted values. For thermal-neutron irradiation the ratio of the predicted to measured concentration of defects ranged from a minimum of 1.0 for titanium to a maximum of 4.5 for palladium; for fast-neutron irradiation this ratio ranged from 2.3 for titanium to 6.5 for copper. On postirradiation is ochronal annealing no stage II or V are present in copper after thermal-neutron irradiation, but both these stages are present after fast-neutron irradiation. Both nickel and titanium exhibit more than 100% recovery, super-recovery, after thermal-neutron irradiation. The super-recovery is attributed to the irradia-tion-induced supersaturation of vacancies that provide the enhanced diffusion required for the precipitation of impurity atoms from the lattice. Little or no enhanced diffusion is observed after fast-neutron irradiation of nickel and titanium.