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
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.”
O.C. Jones
Fusion Science and Technology | Volume 20 | Number 4 | December 1991 | Pages 741-746
Space Nuclear Power/Propulsion | doi.org/10.13182/FST91-A11946930
Articles are hosted by Taylor and Francis Online.
This paper describes the current state of knowledge of the rotating fluidized bed reactor for space power and propulsion application. The results of typical calculations of the thermofluid behavior are given showing how reactor parametrics affect the power level and size of the reactor. Thermal stress analysis of the blind-end plate of the engine chamber has shown the need for creative design effort to preclude failure. Coupled thermofluid-neutronic stability analysis including the effects of the expanding particulate fuel bed indicate adequate stability margins which are, nevertheless, orders of magnitude less than those for the equivalent fixed bed reactor. The overall design concept appears capable of providing very high power density propulsion with powers in the range of 250-5000 MW or larger. This concept thus appears to be enabling for short-time missions including LEO-to-GEO interorbital transfer, lunar, or interplanetary transport at 1-g.