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Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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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Latest News
NRC v. Texas: Supreme Court weighs challenge to NRC authority in spent fuel storage case
The State of Texas has not one but two ongoing federal court challenges to the Nuclear Regulatory Commission that could, if successful, turn decades of NRC regulations, precedent, and case law on its head.
William T. Sha
Nuclear Technology | Volume 1 | Number 6 | December 1965 | Pages 538-545
Technical Paper | doi.org/10.13182/NT65-A20580
Articles are hosted by Taylor and Francis Online.
The effective resonance temperature (Teff) correlation of UO2 pellets based on experimental power coefficient data from PWR cores, namely, YANKEE, SAXTON, BR-3, and SELNI, is presented. The correlation can predict the total power defect of reactivity from hot zero power to full power within experimental uncertainties and Teff at any power level within ± 80°F (± 45°C), a magnitude which constitutes no more than ± 6% of the value at full power for current PWR design. With the ± 80°F uncertainty in Teff, the magnitude of the power coefficient of reactivity can vary as much as ± 30% in the low power region and ± 20% in the high power region. This study indicates the temperature drop in the gap between the pellet and clad is much lower than the value calculated for it in the past.
