ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
Joseph A. Thie
Nuclear Science and Engineering | Volume 15 | Number 2 | February 1963 | Pages 109-114
Technical Paper | doi.org/10.13182/NSE63-A26408
Articles are hosted by Taylor and Francis Online.
The analysis of reactor power fluctuations has proved useful for many reactors. Limited analysis techniques giving specific noise characteristics are proposed. Utilizing the Gaussian property of reactor noise, simplified methods of obtaining the standard deviation are given. The concepts of the easily evaluated correlation times and moments of the power spectral density are applied in the noise analysis of several boiling reactors. It is shown that standard deviations of filtered reactor noise can give spectral shape information. Finally simplified analysis of narrow band spectra is discussed with regard to obtaining the resonance width.