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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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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.”
L.N. Vyacheslavov, V.F. Gurko, O.I. Meshkov, V.F. Zharov
Fusion Science and Technology | Volume 35 | Number 1 | January 1999 | Pages 422-426
Poster Presentations | doi.org/10.13182/FST99-A11963898
Articles are hosted by Taylor and Francis Online.
Two laser scattering systems based on Nd-glass laser and avalanche photodiodes are proposed. First system is designed for observation of radial profiles of the electron plasma density and temperature. Each of its 2–4 spectral modules consists of 25 spatial channels and includes a bandpass interference filter, low F-number camera lens, and 25-channel linear array of the avalanche photodiodes followed by amplifiers and ADCs. Every of 25 spatial channel can view the plasma volume with an adjustable length of 1.5–15 mm along the radius of a trap. In the IR spectral region the plasma background radiation is small and the main source of noise is the amplifier noise, which permits in this case observation of a plasma of a density of 1012 cm−3 with the S/N >60.
The second system is intended for measuring the longitudinal ne and Te profiles and uses the LIDAR technique, which is more suitable for open traps than for large tokomaks due to considerable larger axial length. A relative simple short pulse version of the probe laser (0.5–1 ns, 10 J), commercially available high speed APD-preamplifier modules, and ADC, as well as very high contrast-interference filters can provide longitudinal measurements with the spatial resolution 1 ≤·20 cm and S/N > 40 for ne ⩾1012 cm−3
The probe laser (30J, 8 ns, 1.06 μm, 0.2 mrad) and the prototype of a single spectral module for radial measurements have been developed an used in an experiment.