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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Raphael Aronson
Nuclear Science and Engineering | Volume 86 | Number 2 | February 1984 | Pages 136-149
Technical Paper | doi.org/10.13182/NSE86-136
Articles are hosted by Taylor and Francis Online.
The results of high-order PN calculations for the one-speed albedo and Milne problems in spherical geometry are presented. The computations were performed by the transfer matrix approach. The analysis is included in the paper. Reflection probabilities are given for spheres of various radii and for the region exterior to spheres: reflection and transmission probabilities for spherical shells and extrapolation lengths for the exterior Milne problem. The method is found to diverge for sufficiently high values of N—the smaller the radius, the more rapidly divergence sets in. For moderate and large radii (≳2 mfp), the method nevertheless gives generally excellent results.