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Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
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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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.”
Rikard Malmbeck, Gunnar Skarnemark
Nuclear Technology | Volume 120 | Number 1 | October 1997 | Pages 48-56
Technical Paper | Material | doi.org/10.13182/NT97-A35430
Articles are hosted by Taylor and Francis Online.
Characterization of iodine on-line using mixersettlers has been performed in reactor water, reactor water cleanup (RWCU) effluent, and condensate at the three boiling water reactor (BWR) nuclear power plants (F1, F2, and F3) at Forsmark, Sweden. Characterization of reactor water iodine has also been performed following reactor shutdown at F3. The dominating species in reactor water and condensate was iodide; the rest being essentially iodate. In RWCU effluent, the major species was iodate. Iodine isotopic ratios showed that iodate was delayed when passing the RWCU system. Formation of organic iodides in the RWCU system was not significant. No changes in the iodine species composition in the reactor water could be observed directly following reactor shutdown; however, iodide was with time slowly converted to iodate by radiation-induced oxidation. In reactor water <1% and in condensate and RWCU effluent up to 3% of the total iodine existed in the organic form. Organic iodides in the condensate were older than other iodine species.