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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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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.
D. C. Anderson
Nuclear Science and Engineering | Volume 7 | Number 5 | May 1960 | Pages 468-471
Technical Paper | doi.org/10.13182/NSE60-A25746
Articles are hosted by Taylor and Francis Online.
The thermal neutron flux kernel for a point fission source in a hydrogenous medium is obtained analytically by representing the epithermal slowing down source in a convenient functional form. Normalization is achieved by invoking an appropriate conservation condition. The temperature dependence is then assessed from experimentally determined variation in the diffusion length and appropriate variation in the fitting parameters for the slowing down source. It is concluded that the kernel for water is rather insensitive to change in the diffusion length, and in fact, the r2-flux varies to a good approximation as f(ρr), ρ being the temperature-dependent specific gravity.
