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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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.”
Ya. I. Kolesnichenko, Yu. V. Yakovenko
Fusion Science and Technology | Volume 18 | Number 4 | December 1990 | Pages 597-605
Alpha Particles in Fusion Research | doi.org/10.13182/FST90-A29252
Articles are hosted by Taylor and Francis Online.
The toroidal rotation of a plasma with alpha particles is studied. The various mechanisms and factors of alpha-particle influence on rotation are considered: (a) the difference between the actual radial profile shape of the alpha particles and the profile shape of alpha-particle production; (b) the finite relaxation times of the toroidal angular momentum for the various components of a fusion plasma; and (c) the non-zero average longitudinal velocity of alpha particles escaping from a plasma. The alpha-particle longitudinal current in the peripheral region of an International Thermonuclear Experimental Reactor-like tokamak is found, using the assumption that the alpha-particle radial distribution is determined by the diffusion of the toroidally trapped particles.