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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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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.”
Kunihito Yamauchi, Kazuki Ogasawara, Masato Watanabe, Akitoshi Okino, Yoshitaka Sunaga, Eiki Hotta
Fusion Science and Technology | Volume 39 | Number 3 | May 2001 | Pages 1182-1187
Technical Paper | doi.org/10.13182/FST01-A171
Articles are hosted by Taylor and Francis Online.
Experimental results of spherical glow discharge for a portable neutron source are presented. An experimental device consisting of a 45-cm-diam, 31-cm-high stainless steel cylindrical chamber was constructed in which a spherical mesh-type 30-cm-diam anode was installed. A spherical grid cathode made of 1.2-mm-diam stainless steel wire was made into a 7-cm-diam open spherical grid. The system was maintained at a constant pressure of 1 to 15 mTorr by feeding hydrogen or deuterium gas. The visible and ultraviolet emissions from the device were measured using the spectroscopic method. Strong emission lines of hydrogen were observed, and all hydrogen lines were broadened, remarkably, by Doppler and/or Stark effects. From these data, beam ion velocity, electron density and temperature of the core plasma were estimated. Using deuterium gas, a steady-state neutron production rate of 104 s-1 was observed at a discharge of 40 kV, 2 mA. In the low-current region of several milliamperes, the neutron production rate was proportional to the discharge current to the power from ~1.1 to 1.4. The beam-background reactions were dominant in the measured range of voltage and current.