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
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
Latest Magazine Issues
Jun 2025
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Supreme Court rules against Texas in interim storage case
The Supreme Court voted 6–3 against Texas and a group of landowners today in a case involving the Nuclear Regulatory Commission’s licensing of a consolidated interim storage facility for spent nuclear fuel, reversing a decision by the 5th Circuit Court of Appeals to grant the state and landowners Fasken Land and Minerals (Fasken) standing to challenge the license.
N. J. Ackermann, Jr., A. R. Buhl
Nuclear Technology | Volume 12 | Number 3 | November 1971 | Pages 320-323
Technical Note | Reactor | doi.org/10.13182/NT71-A31013
Articles are hosted by Taylor and Francis Online.
The polarity spectral coherence method (PSCM) of Seifritz has been proposed for measuring the subcritical reactivity of a nuclear reactor. However, due to the nature of the PSCM measurement technique, a systematic error in the subcritical reactivity measurement may occur due to unexpected changes in the neutron detection efficiency. This error is assessed through the development of the appropriate equations, and a hypothetical measurement in a typical liquid-metal fast breeder reactor is numerically evaluated. The results demonstrate that the PSCM is subject to systematic errors which can be quite serious and which must be considered when the PSCM technique is used.
