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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
L. E. Beghian, N. C. Rasmussen, R. Thews, J. Weber
Nuclear Science and Engineering | Volume 15 | Number 4 | April 1963 | Pages 375-381
Technical Paper | doi.org/10.13182/NSE63-A26453
Articles are hosted by Taylor and Francis Online.
Nanosecond bursts of monoenergetic neutrons in the range 0.8–1.6 Mev are injected into non-moderating assemblies of bismuth, lead, and natural uranium. The flux in these assmblies is observed to decay exponentially with characteristic nanosecond time constants in good agree-ment with one velocity transport theory, and the known inelastic scattering and absorption cross sections.These experiments serve as a check on the validity of the assumptions of transport theory. The technique also serves as a method for measuring macroscopic inelastic and absorption cross sections directly, without the necessity of making the corrections required in other methods e.g., for double scattering and for the angular distribution.Nanosecond bursts of monoenergetic neutrons in the range 0.8–1.6 Mev are injected into non-moderating assemblies of bismuth, lead, and natural uranium. The flux in these assmblies is observed to decay exponentially with characteristic nanosecond time constants in good agree-ment with one velocity transport theory, and the known inelastic scattering and absorption cross sections.These experiments serve as a check on the validity of the assumptions of transport theory. The technique also serves as a method for measuring macroscopic inelastic and absorption cross sections directly, without the necessity of making the corrections required in other methods e.g., for double scattering and for the angular distribution.