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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
RP3C Community of Practice’s fifth anniversary
In February, the Community of Practice (CoP) webinar series, hosted by the American Nuclear Society Standards Board’s Risk-informed, Performance-based Principles and Policies Committee (RP3C), celebrated its fifth anniversary. Like so many online events, these CoPs brought people together at a time when interacting with others became challenging in early 2020. Since the kickoff CoP, which highlighted the impact that systems engineering has on the design of NuScale’s small modular reactor, the last Friday of most months has featured a new speaker leading a discussion on the use of risk-informed, performance-based (RIPB) thinking in the nuclear industry. Providing a venue to convene for people within ANS and those who found their way online by another route, CoPs are an opportunity for the community to receive answers to their burning questions about the subject at hand. With 50–100 active online participants most months, the conversation is always lively, and knowledge flows freely.
Kotaro Inoue, Kazuo Azekura, Katsuyuki Kawashima, Setsuo Kobayashi, Yoshio Watari
Nuclear Technology | Volume 63 | Number 2 | November 1983 | Pages 215-227
Technical Paper | Nuclear Safety | doi.org/10.13182/NT83-A33282
Articles are hosted by Taylor and Francis Online.
One type of axially heterogeneous core concept for liquid-metal fast breeder reactors has been developed in which a disk-shaped internal blanket with its thickness radially changed is introduced at the driver core midplane except for a few outside rows of the driver core fuel subassemblies. This core configuration gives a high breeding ratio and short doubling time, as well as flat and stable power distribution throughout the operation. The hypothetical core disruptive accident (HCDA) behavior of this core is considerably mitigated, and the mechanical work energy released in energetic events during the initiating phase of the severest HCDA is a few times less than that of an equivalent conventional two-enrichment-zone homogeneous core. This effect is attributed to a smaller sodium-void reactivity worth around the core center and an axially flattened fuel worth distribution in the presented heterogeneous core.
