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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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
From South Korea to Belgium: Testing a high-density research reactor fuel
The Korea Atomic Energy Research Institute has developed a high-density uranium silicide fuel designed to replace high-enriched uranium in research reactors. Recent irradiation tests appear to be successful, KAERI reports, which means the fuel could be commercialized to continue a key global nuclear nonproliferation effort—converting research reactors to run on low-enriched uranium fuel.
Kazuaki Kito, Rui Hu, Mujid S. Kazimi
Nuclear Technology | Volume 171 | Number 1 | July 2010 | Pages 1-13
Technical Paper | Reactor Safety | doi.org/10.13182/NT10-A10768
Articles are hosted by Taylor and Francis Online.
The Large Assembly with Small Pins (LASP) concept is an evolutionary fuel design proposed to enable a higher power density in boiling water reactors while maintaining the same operating conditions, such as power-to-flow ratio, core inlet conditions, and fuel-to-moderator ratio. It is based on replacing four traditional assemblies and the large water gap regions between them with a single large assembly having a 22 × 22 square fuel pin lattice. Twenty-five water rods within the assembly help maintain neutron moderation and accommodate as many finger-type control rods. It was previously shown that the LASP core allows operation with 20% higher power density than the core with traditional 9 × 9 fuel assemblies. However, the void reactivity coefficient of the LASP core is 25% more negative. In this study, the stability performance of the LASP core has been evaluated.The characteristics of density wave oscillations in the LASP core and their sensitivity to the operating parameters have been investigated. Although the perturbation decay ratios for the LASP core were found to be greater than those of the reference core, the stability criteria are sufficiently satisfied. Sensitivity studies were performed on the effects of design and operating parameters. It can be concluded that the LASP and the reference core have similar sensitivity to operating parameters. Furthermore, the calculated decay ratios were much smaller than the stability criterion for all the considered parameter ranges.