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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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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.”
B. H. Kim, S. M. Jun, J. S. Kim, K. S. Lim, J. L. Kim
Nuclear Technology | Volume 168 | Number 2 | November 2009 | Pages 349-353
Neutron Measurements | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (Part 2) / Radiation Protection | doi.org/10.13182/NT09-A9207
Articles are hosted by Taylor and Francis Online.
Thermal neutron calibration fields are under preparation using a graphite pile and eight americium-beryllium neutron sources at the Korea Atomic Energy Research Institute (KAERI). Eight Am-Be sources, of [approximately]37 GBq each, are located in a 1.5- × 1.5- × 1.5-m3 graphite pile that has four neutron source mounting geometries to make different intensities at the reference irradiation positions. At this time two kinds of neutron calibration fields are categorized according to the position of the neutron sources in the graphite pile. These neutron fields were simulated by using the MCNPX code and quantified experimentally by using the Bonner sphere spectrometry system of KAERI. The neutrons of a low energy below the Cd cutoff energy of 0.5 eV were 68.6 and 95.9% of the total neutron fluence, respectively. The ambient dose equivalent rates H*(10) were 30.6 and 167 Svh-1 , and the personal dose equivalent rates Hp(10) were 31.7 and 174 Svh-1 . These can be used to determine the response of thermal neutron measuring devices.