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The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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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A series of firsts delivers new Plant Vogtle units
Southern Nuclear was first when no one wanted to be.
The nuclear subsidiary of the century-old utility Southern Company, based in Atlanta, Ga., joined a pack of nuclear companies in the early 2000s—during what was then dubbed a “nuclear renaissance”—bullish on plans for new large nuclear facilities and adding thousands of new carbon-free megawatts to the grid.
In 2008, Southern Nuclear applied for a combined construction and operating license (COL), positioning the company to receive the first such license from the U.S. Nuclear Regulatory Commission in 2012. Also in 2008, Southern became the first U.S. company to sign an engineering, procurement, and construction contract for a Generation III+ reactor. Southern chose Westinghouse’s AP1000 pressurized water reactor, which was certified by the NRC in December 2011.
Fast forward a dozen years—which saw dozens of setbacks and hundreds of successes—and Southern Nuclear and its stakeholders celebrated the completion of Vogtle Units 3 and 4: the first new commercial nuclear power construction project completed in the U.S. in more than 30 years.
E. D. Arnold
Nuclear Science and Engineering | Volume 3 | Number 6 | June 1958 | Pages 707-725
Technical Paper | doi.org/10.13182/NSE58-A25506
Articles are hosted by Taylor and Francis Online.
The buildup of the important transmutation products in irradiated uranium was calculated. Significant quantities of such products are produced upon irradiation with pile neutrons, using an MTR geometrical configuration as reference. These quantities are further increased with subsequent recycle through power reactors. The nuclides are U236, U237, Np237, and Pu238. Variables included in this study were: irradiation levels of 6 × 1019 to 3 × 1021 n/cm2; effect of recycle in the range 1 to 400 cycles and infinite recycle (or steady state); initial fuel enrichment (where applicable) in the range of 0.5–3.0% U235; and the effect of fraction of U236 removed by a gaseous diffusion plant reconcentration of U235 in the range 0–100% removal. This last variable depends on the operational characteristics of the diffusion plant. The buildup of transmutation products may have many appreciable effects on the design and operation of fuel recycle. The decay time required will increase as a result of higher concentrations of U237; chemical separation plants may be required to separate Np237 as well as uranium, plutonium, and fission products; and the buildup of Pu238 in the plutonium product may create additional biological or handling problems. An important conclusion of this work is that all problems resulting from isotope buildup in the U235 buildup chain may be decreased in seriousness by approximately an order of magnitude with removal of about 25% of the U236 by re-enrichment in a gaseous diffusion plant.
