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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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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Latest News
G7 pledges support for nuclear at Italy meeting
The Group of Seven (G7) recommitted its support for nuclear energy in the countries that opt to use it at a Ministerial Meeting on Climate in Italy last month.
In a statement following the April meeting, the group committed to support multilateral efforts to strengthen the resilience of nuclear supply chains, referencing the goal set by 25 countries during last year’s COP28 climate conference in Dubai to triple global nuclear generating capacity by 2050.
Zahra Papi, Farrokh Khoshahval
Nuclear Technology | Volume 209 | Number 7 | July 2023 | Pages 1050-1067
Technical Paper | doi.org/10.1080/00295450.2023.2167462
Articles are hosted by Taylor and Francis Online.
There is an obvious effort to increase the burnup of used fuel assemblies in the Bushehr WWER-1000 Nuclear Power Plant (BNPP) in order to improve fuel utilization. The outcomes of this research could result in an increase in the BNPP reactor cycle length, which would lead to improved fuel consumption. Considering the lack of uranium resources and the planning to use new types of fuel in the BNPP, the use of integrated burnable absorber (IBA) materials is of great importance. An analysis of the performance of various IBAs, including Gd2O3-UO2, Er2O3-UO2, and Dy2O3-UO2, as well as the standard (proposed by the designer) burnable absorber (BA) (CrB2Al) in the BNPP, and their impact on fuel neutronic characteristics has been performed. Five fuel assemblies: one without a BA fuel rod and four each containing standard BA gadolinia, erbia, and dysprosia fuel pins were investigated. The neutronic properties of BAs were evaluated by the infinite multiplication factor, reactivity swing, and power peaking factor dependence on fuel burnup. Gadolinia, with a concentration of 5%, has the greatest effect on initial reactivity with 10 893 pcm and the lowest effect on the reactivity swing with 0.277 Δk among the other BAs, which leads to selecting the most appropriate BA for improving reactor core stabilities and enhancing operational safety. The gadolinium IBA extends the cycle burnup by about 1 GWd/tonne U compared to the standard BA. At the beginning of the cycle, erbium has a more uniform power distribution than the standard BA; however, at the end of the cycle, gadolinia has a more uniform power distribution.