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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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.
Farno L. Green, John A. Martin
Nuclear Science and Engineering | Volume 7 | Number 4 | April 1960 | Pages 387-391
Technical Paper | doi.org/10.13182/NSE60-A25733
Articles are hosted by Taylor and Francis Online.
The radioisotopes Mn54, I125, and I130 were produced at higher rates and at lower cost when targets of isotopically enriched Cr54, Te125, and Te130 were bombarded with protons in the ORNL 86-Inch Cyclotron. The product isotopes were carrier-free and also relatively free of undesired radioisotopes. The use of enriched isotopes as cyclotron targets is economically attractive when the target material can be recovered and reused. To obtain the maximum production rate for radioisotopes in a cyclotron, both the usable beam power and the excitation function of the nuclear reaction must be considered; in some cases the maximum rate is achieved at a reduced energy. With the ORNL 86-Inch Cyclotron, (p, n) reaction production rates were increased by a factor of 1.7 by decreasing the proton energy from 22 to 18 Mev and doubling the output current. Methods of reducing the energy below the maximum design value are discussed.
