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
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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Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
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.
Richard D. Guild, Edmond G. Tourigny
Nuclear Technology | Volume 41 | Number 1 | November 1978 | Pages 97-108
Technical Paper | Technique | doi.org/10.13182/NT78-A32136
Articles are hosted by Taylor and Francis Online.
Reliability, reliability with repair, and availability concepts for specific configurations of four identical element systems, including series, parallel, and multiplex systems, are developed using a continuous time Markov process. As the number of systems components increases, the Markov approach leads to complex sets of differential equations that require computer solution. The multiplex system availability, reliability with repair, and reliability are superior to that of both the parallel and series systems. Multiplexing offers the opportunity for reliability improvement in the design of nuclear safety systems.
