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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.
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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.”
Keiji Tani, Masafumi Azumi, Tomonori Takizuka
Fusion Science and Technology | Volume 18 | Number 4 | December 1990 | Pages 625-632
Alpha Particles in Fusion Research | doi.org/10.13182/FST90-A29255
Articles are hosted by Taylor and Francis Online.
The feasibility of passive burn control method using toroidal field ripple-degraded alpha-particle confinement with free expansion of the major radius has been confirmed by a 1.5-dimensional transport code. In this transport code, a scaling of the ripple loss of alpha particles derived from the results of an orbit-following Monte Carlo code is used. For passive burn control, however, >5% of the major radius margin is necessary and the resulting ripple-induced power loss of alpha particles exceeds 20%. Passive burn control in combination with feedback control of the field ripple, a hybrid burn control method, demonstrates very effective burn temperature control. In hybrid burn control, the necessary major radius margin and the controlled field ripple are only 2 to 3% and δc ≲ 1%, respectively. The resulting total power loss of alpha particles is <15%.