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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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A good narrative for nuclear power
Melbye
During an interview for Kitco News at the 2025 Prospectors & Developers Association of Canada (PDAC) Convention, held in Toronto in early March, the chief executive of British Columbia–based Uranium Royalty Corp. noted, “I’ve never seen a better narrative around nuclear power [and] uranium.”
CEO Scott Melbye, who is also executive vice president of Texas-based Uranium Energy Corp. and has 41 years of experience in the uranium sector, added that nuclear energy has gone from stagnation or decline to a point where it may double by 2040.
Thi-Mai-Dung Do, Supamard Sujatanond, Toru Ogawa
Nuclear Science and Engineering | Volume 196 | Number 5 | May 2022 | Pages 584-599
Technical Paper | doi.org/10.1080/00295639.2021.2009985
Articles are hosted by Taylor and Francis Online.
The chemical behavior of cesium molybdate (Cs2MoO4) in light water reactors during severe nuclear accidents remains unexplored. This study demonstrated the deposition behavior of Cs2MoO4 on Type 304 stainless steel (SUS304) at 1530 to 530 K under dry (Ar) and humid (Ar + H2O) conditions. Cesium molybdate was partially decomposed on the SUS304 surface, thereby inducing the oxidation of iron (Fe) and chromium (Cr) under the dry condition. Molybdenum (Mo) metal and molybdenum dioxide (MoO2) were detected on the surface, while Cs coexisted with chromium in the oxide layer at 1500 K. Both Cs2MoO4 and Mo metal were identified on the SUS304 surface at 1230 K. Under the humid condition, the oxidation of the SUS304 was affected by Cs2MoO4 vapor. Molybdenum was detected in the form of spots in the iron oxide layer, while cesium was not detected above 1500 K. Molybdenum metal was detected on the surface of SUS304 oxide at 1230 K. Cesium molybdate was deposited on the SUS304 at 730 to 530 K under both the dry and humid conditions. The results are discussed in relation with the thermodynamic model of the Cs-Fe-Cr-Mo-O system. Thus, the chemical behavior of Cs2MoO4 at the interior of the reactor cooling system is elucidated.
