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Physical Metallurgy

Phonon Dispersion and Linewidth in ThO<SUB>2</SUB> Measured by Neutron Scattering

8:00 AM–8:30 AM Feb 24, 2020 (US - Pacific)

San Diego Convention Ctr - 18

Description

Matthew S. Bryan1, Lyuwen Fu2, Matthew Mann3, Chris Marianetti2, Michael Manley1; 1Oak Ridge National Laboratory, 2Columbia University, 3Air Force Research Laboratory

Recent inelastic neutron scattering measurements of single crystal ThO2, including the linewidth and dispersion are reported as a function of temperature. Comparisons with simulation results and the iso-structural UO2 dispersion and linewidths are made. Special interest will be given to the resulting thermal conductivity as a function of temperature.
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