ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
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.”
Y. Katsuki, K. Ishii, A. Fueki, Y. Takemura, K. Tsutsui, M. Shimoo, K. Yatsu
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 269-272
Poster Presentations | doi.org/10.13182/FST01-A11963458
Articles are hosted by Taylor and Francis Online.
In order to improve the axial confinement, in the tandem mirror machine, the electrostatic potentials are created on both sides of the machine. Usually, thermal barrier potential is created at the midplane of the plug/barrier cell. We note that the electrostatic potential at the Inner Mirror Throats (IMT) is able to play an important role acting as a barrier of the electron flow from the central cell to the plug cell. We examined the influence of the IMT potential on the electron flow by calculation, and it was found that the IMT potential acted effectively as the thermal barrier. In consideration of the undesirable condition at the IMT region, that is the tight accessibility and the strong magnetic field, we adopted a newly designed gold neutral beam probe system including a new type of MCP detector. The characteristics of the MCP detector were obtained successfully using a teststand with strong magnetic field created by the nuclear magnetic resonance (NMR) magnets.
This beam probe system was applied to the tandem mirror GAMMA 10, and the electrostatic potential was measured successfully by the beam probe system located in the neighborhood of the IMT region.