ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
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.
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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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.
Ana Da Silva, Pradip Saha, Eric P. Loewen
Nuclear Technology | Volume 196 | Number 1 | October 2016 | Pages 74-88
Technical Paper | doi.org/10.13182/NT16-55
Articles are hosted by Taylor and Francis Online.
The legacy electromagnetic (EM) pump analysis tool MATRIX has been improved by the addition of a thermal analysis module. Although the module is patterned after the general-purpose Advanced General Electric Network Analyzer (AGENA) code, it is developed from a more fundamental approach to provide a better understanding and control of the thermal analysis of the EM pump. The MATRIX results are verified against the AGENA results and the test data from the 160 m3/min large EM pump tests, which provided a good estimate of the thermal conductance between the lamination and the inner duct wall. Full and good contact between the lamination and the inner duct wall is necessary to keep the copper conductor temperatures low. Parametric studies, as expected, confirmed the correct trend of increasing copper conductor temperatures with increasing frequency. The MATRIX results show that a new proposed insulation material for the future EM pumps is beneficial since it could reduce the copper block temperature by ~20°C. Such analysis can help develop a better EM pump with a more compact design and better insulation material.
