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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
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.