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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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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July 2025
Nuclear Technology
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Latest News
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.
Shekhar Kumar
Nuclear Technology | Volume 210 | Number 11 | November 2024 | Pages 2038-2049
Research Article | doi.org/10.1080/00295450.2024.2309070
Articles are hosted by Taylor and Francis Online.
The density of aqueous solutions containing actinide nitrates is an important parameter for process design, equipment design, and remote operation/control. It is also significantly important for the estimation of atom densities during criticality calculations and related experiments involving actinide solutions. Using a massive database of 1353 points consisting of in-house-generated data as well as data published in the literature, a robust estimation of the coefficients of a re-parameterized and dimensionally consistent form of density equation was performed in the following range of parameters: U(VI) concentration 0 to 1330 g/L, Pu(IV) concentration 0 to 1201 g/L, HNO3 concentration 0 to 15.8 M, and temperature range of 283.15 to 373.15 K. This paper lists the details of the new database, the newly estimated coefficients, and the performance evaluation of the proposed re-parameterized dimensionally consistent equations.
