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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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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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 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. 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.”
S. Krupakar Murali, John F. Santarius, Gerald L. Kulcinski
Fusion Science and Technology | Volume 53 | Number 3 | April 2008 | Pages 841-853
Technical Note | doi.org/10.13182/FST08-A1739
Articles are hosted by Taylor and Francis Online.
Recent study of fusion reactions within an inertial electrostatic confinement (IEC) device revealed several significant modes of fusion: converged core, beam-target, beam-background, and charge-exchange reactions. In an attempt to understand the fusion product proton measurements in the IEC device, the advanced fuel D-D and D-3He fusion proton energy spectra were analyzed. For D-3He fusion, the beam-target reactions were found to dominate. Hence, the present study focuses on understanding the beam-target reactions and the corresponding proton energy spectra from such sources. This information helps in accurately calculating the proton flux for optimizing medical isotope production and other near-term applications, besides calibration of the proton detectors.A proton detector was used to measure the experimental data and the Monte Carlo stopping power and range in matter (SRIM) simulation code was used to explain the corresponding experimental observations. While the D-D proton spectrum from the IEC device showed combined Doppler and scatter broadening, the D-3He proton spectrum, besides showing the broadening, also shows some interesting characteristics such as a high-energy tail and a detector thickness-dependent energy spectrum. An extended high-energy tail occurs in the observed energy spectrum from the detector because some of the protons go through the wire before being detected, which reduces their total energy. Due to the higher proton stopping power in the detector at somewhat lower energies than the initial 14.7 MeV, these protons thus deposit a larger fraction of their energy and create the high-energy tail. These measurements show that the high-energy tail of the proton energy spectrum should be excluded from the total proton counts for an accurate proton rate measurement.