Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd

Hyunsu Ju; Brent J. Heuser; Douglas L. Abernathy; Terrence J. Udovic

doi:10.1016/j.nima.2011.07.020

Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd

Hyunsu Ju, Brent J. Heuser, Douglas L. Abernathy, Terrence J. Udovic

Direct Geometry

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Abstract

Incoherent inelastic neutron scattering (IINS) measurements of the vibrational density of states (VDOS) of hydrogen trapped at dislocations in deformed PdH_0.0013 have been performed using ARCS at the SNS and FANS at the NCNR. A comparison of data sets at 4 and 295 K indicates good agreement of the measured VDOS for the two instruments. The low hydrogen inventory (∼10^-3 g) provides a test of the response of each instrument over the energy transfer range of 40100 meV corresponding to the vibrational density of states of the hydrogen modes.

Original language	English
Pages (from-to)	522-526
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	654
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2011.07.020
State	Published - Oct 21 2011

Funding

This work was supported by the NSF under Grant number DMR-0804810 . In addition, we acknowledge the support of the National Institute of Standards and Technology , U.S. Department of Commerce , in providing the neutron research facilities used in this work. A portion of this research was performed at the Oak Ridge National Laboratory's Spallation Neutron Source and was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy.

Keywords

Dislocation trapping
Hydrogen
Inelastic neutron scattering
Vibrational density of states

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Ju, H., Heuser, B. J., Abernathy, D. L., & Udovic, T. J. (2011). Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 654(1), 522-526. https://doi.org/10.1016/j.nima.2011.07.020

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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 4 and 295 K indicates good agreement of the measured VDOS for the two instruments. The low hydrogen inventory (∼10-3 g) provides a test of the response of each instrument over the energy transfer range of 40100 meV corresponding to the vibrational density of states of the hydrogen modes.",

keywords = "Dislocation trapping, Hydrogen, Inelastic neutron scattering, Vibrational density of states",

author = "Hyunsu Ju and Heuser, {Brent J.} and Abernathy, {Douglas L.} and Udovic, {Terrence J.}",

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Ju, H, Heuser, BJ, Abernathy, DL & Udovic, TJ 2011, 'Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 654, no. 1, pp. 522-526. https://doi.org/10.1016/j.nima.2011.07.020

Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd. / Ju, Hyunsu; Heuser, Brent J.; Abernathy, Douglas L. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, No. 1, 21.10.2011, p. 522-526.

Research output: Contribution to journal › Article › peer-review

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T1 - Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd

AU - Ju, Hyunsu

AU - Heuser, Brent J.

AU - Abernathy, Douglas L.

AU - Udovic, Terrence J.

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AB - 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 4 and 295 K indicates good agreement of the measured VDOS for the two instruments. The low hydrogen inventory (∼10-3 g) provides a test of the response of each instrument over the energy transfer range of 40100 meV corresponding to the vibrational density of states of the hydrogen modes.

KW - Dislocation trapping

KW - Hydrogen

KW - Inelastic neutron scattering

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IS - 1

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Comparison of FANS and ARCS incoherent inelastic neutron scattering measurements of hydrogen trapped at dislocations in deformed Pd

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