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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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Latest News
IAEA report confirms safety of discharged Fukushima water
An International Atomic Energy Agency task force has confirmed that the discharge of treated water from Japan’s Fukushima Daiichi nuclear power plant is proceeding in line with international safety standards. The task force’s findings were published in the agency’s fourth report since Tokyo Electric Power Company began discharging Fukushima’s treated and diluted water in August 2023.
More information can be found on the IAEA’s Fukushima Daiichi ALPS Treated Water Discharge web page.
L. D. Noble, P. Greebler, G. R. Pflasterer, Jr., B. U. B. Sarma, D. Wintzer
Nuclear Technology | Volume 10 | Number 1 | January 1971 | Pages 5-10
Technical Paper and Note | Reactor | doi.org/10.13182/NT71-A30941
Articles are hosted by Taylor and Francis Online.
The minimum critical core size for the Southwest Experimental Fast Oxide Reactor was predicted prior to the initial fuel loading using the results of a critical mockup in ZPR-3. The predicted minimum critical loading was 519 PuO2-UO2 fuel rods containing 285 kg of fissile (239Pu + 241Pu) plutonium, with 1 beryllium oxide tightener rod for each 6 fuel rods. The actual minimum critical loading was equivalent to a core containing 518 standard fuel rods and the nominal 6-to-1 ratio of fuel-to-tightener rods. The calculations used in the prediction are described and the agreement between experiment and calculation is discussed.
