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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.
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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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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 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.”
Om Prakash Joneja, Vijay R. Nargundkar
Fusion Science and Technology | Volume 18 | Number 2 | September 1990 | Pages 310-316
Technical Paper | Blanket Engineering | doi.org/10.13182/FST90-A29302
Articles are hosted by Taylor and Francis Online.
Monte Carlo calculations are performed for a full-coverage spherical system consisting of a stainless steel first wall and a lead-beryllium neutron multiplier. All the calculations use the MORSE-CG code, employing the Los Alamos National Laboratory 30-group neutron cross-section set CLAW-IV in P3 approximation. For multiplier thicknesses varying from 3 to 22.5 cm, the ratio of neutrons leaking from the system with and without 1.5-cm-thick stainless steel decreases from 1.48 to 1.41 for lead and from 1.78 to 1.58 for beryllium. For a three-region system consisting of a first wall, multiplier, and a homogeneous mixture of water and natural lithium, the tritium breeding ratio for the stainless steel-beryllium-homogeneous (natural lithium + water) system is only ∼9% more than that of the stainless steel-lead-homogeneous (natural lithium + water) system. Recent measurements and calculations on neutron multiplication suggest a downward correction for Be(n,2n) and an upward correction for Pb(n,2n) in the ENDF/B-IV cross-section set. In light of such changes in cross sections, a comparison is made between beryllium and lead as a multiplier with a stainless steel first wall.