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Comparison of FANS and ARCS Incoherent Inelastic Neutron Scattering Measurements of Hydrogen Trapped at Dislocations in Deformed Pd

Published

Author(s)

Hyunsu Ju, Brent J. Heuser, D. Abernathy, Terrence J. Udovic

Abstract

Incoherent inelastic neutron scattering (IINS) measurements of the vibrational density of states (VDOS)of hydrogen trapped at dislocations in deformed PdH0.0013 have been performed using ARCS at the SNS and FANS at the NCNR. A comparison of data sets at 4K and 295K indicates good agreement of the measured VDOS for the two instruments. The low hydrogen inventory (10-3 grams)provides a test of the response of each instrument over the energy transfer range of 40 to 100 meV corresponding to the vibrational density of states of the hydrogen modes.
Citation
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms
Volume
654

Keywords

inelastic neutron scattering, neutron scattering, neutron vibrational spectroscopy, optical modes, palladium, palladium hydride, phonons, vibrational density of states, vibrations

Citation

Ju, H. , Heuser, B. , Abernathy, D. and Udovic, T. (2011), Comparison of FANS and ARCS Incoherent Inelastic Neutron Scattering Measurements of Hydrogen Trapped at Dislocations in Deformed Pd, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908408 (Accessed April 15, 2024)
Created July 21, 2011, Updated October 12, 2021