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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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!
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Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Susan S. Voss
Nuclear Technology | Volume 206 | Number 8 | August 2020 | Pages 1097-1108
Critical Review | doi.org/10.1080/00295450.2019.1706378
Articles are hosted by Taylor and Francis Online.
Nuclear material nonproliferation and security issues have taken on even greater importance within the United States and internationally since the breakup of the Soviet Union in 1990s and after the terrorist attacks in the United States on September 11, 2001. Leadership in the United States has made weapons nuclear material security and nuclear material elimination and/or reduction a high national priority. For future National Aeronautics and Space Administration (NASA) missions, the use of highly enriched uranium (HEU) in space nuclear reactors and propulsion systems may be enabling for certain missions, and therefore, it is important that it remain an available option within the context of U.S. nonproliferation policy. This critical review provides an overview of U.S. nonproliferation policy on the use of HEU in nuclear reactor systems for the three primary users of HEU: U.S. Navy, domestic and international civilian research and test reactors, and future NASA missions. In general, U.S. nonproliferation policy is based on a risk versus benefits approach. Nuclear security is a key aspect of nuclear nonproliferation and within the field of space nuclear reactors. Nuclear security requirements and implementation procedures are well established for all phases of nuclear design, manufacturing, transportation, and testing programs. The only time that nuclear material may be outside of direct physical control and security would be during operation in deep space or a planetary surface mission or due to an accidental reentry of a space nuclear reactor during launch or postoperation from low earth orbit. Safety and security options for accidental low-probability reentry events are discussed.