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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Qiufeng Yang, Jianbang Ge, Yafei Wang, Jinsuo Zhang
Nuclear Technology | Volume 206 | Number 11 | November 2020 | Pages 1769-1777
Technical Paper | doi.org/10.1080/00295450.2020.1757976
Articles are hosted by Taylor and Francis Online.
The electrochemical behavior of La2O3 was investigated in LiF-NaF-KF (FLiNaK, 46.5-11.5-42.0 mol %) eutectic at 700°C. In the electrochemical tests, two kinds of working electrodes, i.e., tungsten and graphite, were utilized. The present study showed that La3+ ions can be deposited in the form of La metal on a tungsten cathode or LaC2 on a graphite cathode, and O2− can be removed in the form of CO/CO2 using a graphite anode. Therefore, a graphite or tungsten cathode (for La3+ removal), and a graphite anode (for O2− removal) are good options to remove both La3+ and O2− from the molten salts. In addition to the electrochemical tests, inductively coupled plasma mass spectroscopy analysis was used to measure the concentration of the lanthanum element and X-ray powder diffraction techniques were applied to determine the chemical forms of lanthanum in the salt. It turned out that the solubility of La3+ in the molten FLiNaK was 6.81 × 10−4 wt% at 700°C and LaOF was formed by the chemical reactions between La2O3 and alkali fluorides during the heating process.
