ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Constellation seeks rezone for property adjacent to Illinois plant
While no development details have been released, Constellation is asking to rezone 658.8 acres of land it owns around the Byron nuclear plant in Illinois for possible long-term use.
Joseph R. Burns, David Chandler (ORNL), Bojan Petrovic (Georgia Tech), Kurt A. Terrani (ORNL)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 738-745
The application of advanced manufacturing to the fabrication of control elements (CEs) for the High Flux Isotope Reactor (HFIR) is under investigation at the Oak Ridge National Laboratory. Advanced manufacturing yields a unique CE design with lumped neutron absorbers, necessitating investigation of the neutronic implications of employing this novel CE design in HFIR. This work assesses the operational performance of advanced manufactured CEs in HFIR throughout their useful lifetime. CE depletion calculations are carried out for long residence time (50 cycles) under several predictor-corrector approximation schemes of varying rigor, with their reactivity worth evaluated at beginning, middle, and end of life. While coarse temporal divisions of the long CE irradiation time yield prominent discrepancies in the isotopic content predicted by each approximation, the corresponding reactivity worth predictions are reasonably consistent across approximations. Further, regardless of the approximation employed, the reactivity worth of the advanced manufactured CEs is found to be comparable to that of the original CEs throughout their useful lifetime. The core power distribution is also not prohibitively perturbed by the introduction of the new CE design at any time in the CE life. Pending irradiation characterization testing, it may thus be concluded that the advanced manufactured CE design can successfully replace the current design and is neutronically feasible for the operation of HFIR.