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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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.”
Tsutomu Shimura, Yoshikazu Kuwahara, Manabu Fukumoto, Toshiyuki Umata
Fusion Science and Technology | Volume 60 | Number 3 | October 2011 | Pages 1190-1192
Biology | Proceedings of the Ninth International Conference on Tritium Science and Technology | doi.org/10.13182/FST11-A12628
Articles are hosted by Taylor and Francis Online.
Tritium is used as fuel for nuclear fusion reactions and has cancer risk for workers in nuclear fusion plant by its exposure during routine operation or accidents. Tritium exists as tritiated water (HTO) which is produced by an isotope exchange reaction from HT in normal circumstance. In this study we analyzed cellular response against HTO exposure in a human liver cancer cell line HepG2 and a cervical cancer cell line HeLa. These cells were immersed in RPMI medium containing HTO at the dose rate of 0.5 Gy/hr for 20 hrs (10 Gy). We determined whether the DNA-PK/AKT pathway is activated by chronic HTO exposure or not. As well as X-rays, exposure of HepG2 and HeLa cells to HTO activated AKT, which was shown by phosphorylated-AKT at Serine473. The activation of DNA-PK was also observed in these cells by X-ray irradiation but not by exposure to HTO. Instead of DNA-PK, epidermal growth factor receptor and ERK1/2 were activated following HTO exposure. These results suggested that certain cellular molecules are response to HTO exposure. Our study may provide molecular markers to estimate the biological effects in response to tritium exposure in human cells.