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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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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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.”
E.M. Drobyshevski, B.G. Zhukov, R.O. Kurakin, V.A. Sakharov, A.M. Studenkov
Fusion Science and Technology | Volume 26 | Number 3 | November 1994 | Pages 649-653
Plasma Fueling and Fuel Cycle | Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 | doi.org/10.13182/FST94-A40230
Articles are hosted by Taylor and Francis Online.
Small body launching that uses gas or plasma faces the fundamental problem caused by excess energy loss that is due to the great wall surface/volume ratio of the barrel. For example, the efficiency of the plasma armature (PA) rail-gun acceleration is maximum for 8–10 mm-size bodies and drops as their size decreases.1 That is why in the case of nuclear fusion applications, where 1–2 mm-size pellets at 5–10 km/s velocity are desirable, electromagnetic launchers have not yet demonstrated an advantage over light-gas guns and one is now forced to search for a compromise between the pellet size (increasing it up to #3–4 mm) and its velocity (decreasing it down to ≈3 km/s).. As a whole, the probability of attaining 5–10 km/s velocity for 1–2 mm pellets seems to be rather remote at the present. When designing the 1 mm railgun that exploits the PA, we made use of our concept of dielectric pellet launching at the greatest constant acceleration, which is close to the strength or the electrode skin-layer explosion limits.2 That shortened the barrel length sufficiently. The system become highly compact, with the electrode length ≈10–16 cm, thus permitting the rapid test of new operation modes as well as modifications of the design, including magnetic field augmentation and the use of a compacted PA.3 As a result of these refinements, the difficulties caused by the catastrophic supply of mass ablated from the electrodes were overcome and regimes of 1–2 mm plastic pellets without sabot accelerated to 5 km/s were found. No pre-accelerator is used. The launcher operates in air at atmospheric conditions. The potentials and prospects of the small system created are far from being exhausted and deserve further elaboration.