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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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.
Takashi Nakamura, Toshiso Kosako, Katsumi Hayashi, Shuichi Ban, Kazuaki Katoh
Nuclear Science and Engineering | Volume 77 | Number 2 | February 1981 | Pages 182-191
Technical Paper | doi.org/10.13182/NSE81-A21352
Articles are hosted by Taylor and Francis Online.
The dose distribution and the spectrum variation of neutrons due to the skyshine effect have been measured with various detectors in the environment surrounding the electron synchrotron of the Institute for Nuclear Study, University of Tokyo. The dose distribution and the spectra of neutrons on the outer surface of the concrete shield of the synchrotron building were also measured in order to get information on the skyshine source. The measured neutron spectra both at the source and in the environment show an approximate 1/E spectrum below ∼100 keV, but the latter is much softer than the former above that energy. These experimental data were analyzed with the multigroup Monte Carlo code, MMCR, with the result that the calculated results are in good agreement with the experiment. This experiment is uniquely worthwhile since the skyshine of the radiation directed almost vertically into the air from the accelerator building was measured and the energy spectrum and dose distributions of the neutron source were clarified.