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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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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August 2024
Nuclear Technology
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.”
Russell W. Kincaid, Mohamed A. Bourham, John G. Gilligan
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 834-839
Plasma Fuelingand Heating, Control, and Currentdrive | doi.org/10.13182/FST96-A11963041
Articles are hosted by Taylor and Francis Online.
Modifications to the electrothermal plasma gun SIRENS (Surface Interaction Research Experiment at North Carolina State University) have been completed to allow for acceleration experiments using plastic pellets. The barrel is assembled from separate sections of 15 cm each, such that the acceleration path could be varied from 15 to 60 cm to study the effect of ablation and viscous drag, optimize the performance of the gun, and to provide longer acceleration paths for longer pulse lengths. A diagnostics system for velocity and position of the pellet is installed, which includes a four-branch break-wire measuring array situated at various locations along the acceleration path. A pulse forming network (PFN) was used to provide variable pulse lengths for the experimental shots. The longer pulse length allowed the pellet to accelerate for a longer period of time and thus reach higher exit velocities. Pressures of 100-600 MPa can be achieved, depending on the pulse duration and input energy to the source. Modifications have been implemented to the 1-D, time dependent code ODIN (One Dimensional INterior code) to include pellet friction, momentum, and kinetic energy with options of variable barrel length. The code results in the new version, POSEIDON (Pellets On SIRENS Experimental Device modeled One-D), compare favorably with experimental data and with code results from ODIN. Predicted values show an increased pellet velocity along the barrel length, achieving 2 km/s exit velocity. Measured velocity, at three locations along the barrel length, showed good correlation with predicted values. The code has also been used to investigate the effectiveness of longer pulse length on pellet velocity using simulated ramp up and down currents with flat top, and triangular current pulses with early and late peaking.