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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.
L. P. Geraldo, L. A. Vinhas, M. T. F. Cesar
Nuclear Science and Engineering | Volume 89 | Number 2 | February 1985 | Pages 150-158
Technical Paper | doi.org/10.13182/NSE85-A18189
Articles are hosted by Taylor and Francis Online.
The photodisintegration of 237Np has been studied using monochromatic photons produced by thermal neutron capture in several materials. The partial cross sections σγ, f and σγ, n were measured in the energy interval from 5.43 to 10.83 MeV. Analyzing the photofission data according to the liquid drop model, the height (Ef) and the curvature (ℏω) of the simple fission barrier were determined: Ef = (5.9 ± 0.2) MeV and ℏ;ω = (0.8 ± 0.4) MeV. For the competition between photoneutron emission and fission (Γn/Γf), a constant value was found (1.28 ± 0.15) in the 6.73- to 10.83-MeV energy range. From this result the following nuclear temperatures for 237Np were extracted on bases of some models of level density: T = 0.84 ± 0.06 MeV (Fujimoto-Yamaguchi model) and T = 0.60 ± 0.04 MeV (constant nuclear temperature model).