ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Y. Belot, H. Camus, T. Marini
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 556-559
Safety; Measurement and Accountability; Operation and Maintenance; Application | doi.org/10.13182/FST92-A29805
Articles are hosted by Taylor and Francis Online.
Recent observations suggested that formaldehyde can be incorporated in vegetation at a very high rate. This encouraged our laboratory to develop a methodology for determining tritiated formaldehyde (CHTO) in gaseous effluents containing HTO and HT as dominant species. CHTO being very soluble in water is collected in a solution of carrier formaldehyde. This carrier is necessary for precipitating the formaldehyde derivative of dimedone and collecting it by filtration. The precipitate, which contains the formaldehyde hydrogens, is freed from exchangeable tritium, dried in a oven, and combusted to water for tritium determination. CHTO can thus be separated from HTO with a high efficiency, leading to the possibility of determining accurately 1 Bq of CHTO in as much as 5 × 104 Bq of HTO. The methodology has been applied in preliminary experiments to determine the ratio of CHTO to HTO in effluents from a tritium-handling facility and effluents released from solid miscellaneous wastes. The median of the ratio of CHTO to HTO was 1.2 × 10−3 for the tritium-handling facility (40 samples), and 4.5 × 10−4 for miscellaneous solid wastes (12 samples).