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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
M. Salvatores, M. Carta, R. Soule
Nuclear Science and Engineering | Volume 100 | Number 1 | September 1988 | Pages 1-15
Technical Paper | doi.org/10.13182/NSE88-A29009
Articles are hosted by Taylor and Francis Online.
Heterogeneity effects are compared in a power reactor subassembly of the Superphénix type and in the lattices of the critical experiments performed in the Masurca critical facility. Both the fuel pin heterogeneity and the structure tube heterogeneity are evaluated with a two-step method based on the subgroup technique for self-shielding effect evaluation and on the Benoist method for streaming effect evaluation (the DHARMA method). Besides validation with reference calculations for simple geometries, experimental evidence confirms the good performance of the method proposed. It is found that the components of the heterogeneity effects on keff play a different role in power reactors and critical experiments, and this fact has a significant impact in bias factor assessment or cross-section adjustments based on integral experiments.