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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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A wave of new U.S.-U.K. deals ahead of Trump’s state visit
President Trump will arrive in the United Kingdom this week for a state visit that promises to include the usual pomp and ceremony alongside the signing of a landmark new agreement on U.S.-U.K. nuclear collaboration.
James A. Young, Juan U. Koppel
Nuclear Science and Engineering | Volume 19 | Number 3 | July 1964 | Pages 367-373
Technical Paper | doi.org/10.13182/NSE64-A20971
Articles are hosted by Taylor and Francis Online.
Using a central-force model, with experimentally determined force constants, the lattice vibrational spectrum of beryllium has been determined from a sampling of 2413 points in the first Brillouin zone. The specific heat derived from this spectrum agrees well with measured values. This vibrational spectrum has been used to compute the inelastic scattering of slow neutrons from beryllium in the incoherent approximation. Agreement with experiment is good in the region of high momentum transfer where this approximation applies. The coherent elastic scattering depends on the vibrational spectrum, and this has also been computed.