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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.
P. Jacob, H. G. Paretzke, J. Wölfel
Nuclear Science and Engineering | Volume 87 | Number 2 | June 1984 | Pages 113-122
Technical Paper | doi.org/10.13182/NSE84-A17706
Articles are hosted by Taylor and Francis Online.
The photon fluence due to isotropic photon point sources in air has been calculated with a Monte Carlo code that accounts for photon absorption, Compton scattering, annihilation, and bremsstrahlung. Kerma buildup factors have been determined for ten energies in the 0.05- to 10-MeV range and for 72 distances in the 0.15- to 10-mfp range. The results agree with the moments calculations of Chilton, Eisenhauer, and Simmons within 5%, except for low energies and great penetration depths, where the buildup factors differ by more than 20%. This deviation may be due to the use of different cross-section data. The buildup factors have been analytically approximated by a polynomial in E−1 and µr with an accuracy of better than 5% for all 720 data points.
