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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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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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Latest News
Oklo completes end-to-end demonstration of advanced fuel recycling
Oklo Inc. has announced that it has completed the first end-to-end demonstration of its advanced fuel recycling process as part of an ongoing $5 million project in collaboration with Argonne and Idaho National Laboratories. Oklo’s goal: scaling up its fuel recycling capabilities to deploy a commercial-scale recycling facility that would increase advanced reactor fuel supplies and enhance fuel cost effectiveness for its planned sodium fast reactors.
J. Abrefah, H. F. G. De Abreu, F. Tehranian, Y. S. Kim, D. R. Olander
Nuclear Technology | Volume 105 | Number 2 | February 1994 | Pages 137-144
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT94-A34918
Articles are hosted by Taylor and Francis Online.
The kinetics of the reaction of molecular iodine with preoxidized Type 304 stainless steel was studied by mass spectrometric and gravimetric techniques. The temperature range was 438 to 803 K, and the iodine partial pressures in the 1-atm total pressure water vapor-hydrogen gas ranged from 1.33 to 133 Pa. Examination of the reacted surface by electronic spectroscopies showed localized attack in the form of highly fractured crystalline deposits that contained significant iodine concentrations. The mass spectrometric results revealed no HI in the gas despite favorable thermodynamics for formation of this species. The gravimetric results showed an initial rapid increase in weight followed by a slow, long-term weight change that did not appear to approach saturation. The saturation iodine concentration on the surface due to the initial deposition process was greatest at 573 K. The kinetics of the initial uptake was analyzed by a first-order kinetics model. The characteristic times of attainment of saturation were on the order of 1 h and showed a very small activation energy.