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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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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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 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. 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.”
L. Vichot, C. Boyer, T. Boissieux, Y. Losset, D. Pierrat
Fusion Science and Technology | Volume 54 | Number 1 | July 2008 | Pages 253-256
Technical Paper | Environment and Safety | doi.org/10.13182/FST08-A1806
Articles are hosted by Taylor and Francis Online.
This paper deals with the experimentation made on different plants such as lichens, trees and lettuces exposed to HT and HTO throughout their lives. These experiments included, in the same time, consideration of meteorological data, measurement of tritium diffusion, characterization of the tritium transfer into biological materials, and dose estimation through the food chain.Works on lichens collected around the site have confirmed previous results quoted in the literature in regards to OBT levels. However, because of their potential of pollutants accumulation and the difficulty to date them, lichens can not be chosen as bio-indicators.Measurements carried out on annual rings of trees have shown the related evolutions in time of the OBT levels and the tritium releases of the Valduc Centre. These measures have underlined the possibility to reveal past contamination by OBT analysis around the centre in good correlation with the atmospheric discharge.The results obtained on lettuces cultivated into the site near a source of tritium appeared as very promising. A global conversion rate from tissue free water tritium to OBT was evaluated to 0.20 - 0.24 %.h-1 in average on the whole growing period, corresponding to the order of magnitude given for many vegetables in the literature.