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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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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Y. Nishizawa, S. Oshima, T. Maekawa
Nuclear Technology | Volume 10 | Number 4 | April 1971 | Pages 486-498
Technical Paper | Symposium on Reactor Containment Spray System Technology / Reactor | doi.org/10.13182/NT71-A16260
Articles are hosted by Taylor and Francis Online.
The objective of this study is to demonstrate the efficiency of the containment spray system on the removal of iodine from atmosphere under environmental conditions expected in a reactor accident. As a small-scale vessel simulating a reactor containment, we used two types of steel vessels: one is made of mild steel with the interior surface painted; the other is made of stainless steel. Both tanks are 1.5 m diam × 3 m high. The removal rates of iodine with and without sprays were measured as functions of spray system conditions such as temperature, pressure, spray flow rate, and spray solution. The removal rates were evaluated from the variation for iodine concentration in the gas phase, which was determined by means of the thiosulfate titration method for elemental iodine and gas-liquid chromatographic techniques for organic iodides.
