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Division Spotlight
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.
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.”
Masahito Matsubayashi, Hisao Kobayashi, Takashi Hibiki, Kaichiro Mishima
Nuclear Technology | Volume 132 | Number 2 | November 2000 | Pages 309-324
Technical Paper | Radioisotopes | doi.org/10.13182/NT00-A3146
Articles are hosted by Taylor and Francis Online.
The JRR-3M thermal neutron radiography facility was constructed in the JRR-3M of the Japan Atomic Energy Research Institute in 1991 and has been used as a research facility for various kinds of research fields. The characteristics of the facility have been briefly reported and declared to be excellent in neutron flux and in collimator ratio. Additionally, the authors have measured the beam flatness and the scattered components and have compared these measured characteristics with the design values. The neutron source, the beam tube, and the radiography rooms are described in detail and their data are applied to the analyses of the characteristics. The description of the radiography rooms includes beam size definition tubes and beam shutters, which are the most important components in the room. Also described are the restrictions on the size and shape of the sample, the background dose rates, and equipment information. The high-performance of the facility enables advanced imaging techniques such as high spatial resolution imaging and high temporal resolution imaging. The high-resolution static neutron radiography system using a cooled charge-coupled device camera has the capability to take neutron radiography images with 72 m of spatial resolution. The high frame rate neutron radiography system has the capability to image high-speed phenomena with 4500 frames/s of temporal resolution. Both neutron radiography systems are described in detail especially for key components such as fluorescent converters and cameras.