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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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Jul 2024
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Nuclear Science and Engineering
August 2024
Nuclear Technology
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.”
Katsushi Matsuoka, Makoto Kobayashi, Rie Kurata, Junya Osuo, Naoko Ashikawa, Akio Sagara, Yasuhisa Oya, Kenji Okuno
Fusion Science and Technology | Volume 60 | Number 1 | July 2011 | Pages 412-416
Materials Development & Plasma-Material Interactions | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 1) | doi.org/10.13182/FST11-A12391
Articles are hosted by Taylor and Francis Online.
Impurity effects on chemical behavior of energetic deuterium implanted into the carbon-oxygen containing boron films were investigated as a function of impurity concentrations by means of XPS and TDS. This study was carried out for about 40% impurities-containing boron films. It was found that a major chemical state of carbon was C-B bond and that of oxygen was free oxygen for the carbon-oxygen containing boron films. Most of deuterium was trapped by the C-B bond to form a B-C-D bond. On the other hand, free oxygen formed heavy water (D2O) and released as D2O during deuterium implantation. The amount of deuterium trapped by carbon was increased as the carbon concentration increased. However, the deuterium retention for the carbon-oxygen containing boron film with less than 20% carbon was almost twice as high as that for the only about 20% carbon-containing boron films. It was also indicated that the formation of free carbon was refrained due to the existence of free oxygen which induce the increase of C-B bond in about 40% impurities-containing boron films. These results indicate that hydrogen isotopes were trapped as B-C-D bond, which released deuterium at 900 K, in lower carbon concentration as oxygen coexists with carbon in the boron films. It was concluded that impurity concentration should be kept as low as possible to prevent tritium retention in the boron film deposited on the first wall in future fusion devices.