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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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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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 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.”
B.W. McQuillan, A. Greenwood
Fusion Science and Technology | Volume 35 | Number 2 | March 1999 | Pages 194-197
Technical Paper | doi.org/10.13182/FST99-A11963921
Articles are hosted by Taylor and Francis Online.
We have identified three process variables which determine the sphericity of polymer shells made by dual orifice microencapsulation. 1) The density mismatch between the outer aqueous solution and the polymer oil phase must be minimized. We have minimized this density mismatch by adjusting the water bath temperature. 2) The stir rate has an effect, with a minimum non-sphericity located near 50–70 rpm stir rate. 3) The outer aqueous solution must have enough total oil solvent (fluorobenzene in the drops) to be beyond the aqueous saturation level (1.5 g/ℓ) at the beginning of the solvent extraction. Using the optimal conditions for a 1000 μm o.d. shell, we produce a minimum variation in the radius of a given shell, in the neighborhood of 0.4 μm.