Alignment facility and software for single-crystal time-of-flight neutron spectroscopy.

Authors :: Liu Z
Lane H
Frost CD
Ewings RA
Attfield JP
Stock C
Source :: Journal of applied crystallography [J Appl Crystallogr] 2021 May 31; Vol. 54 (Pt 3), pp. 957-962. Date of Electronic Publication: 2021 May 31 (Print Publication: 2021).
Publication Year :: 2021
Abstract: An instrument and software algorithm are described for the purpose of characterization of large single crystals at the Alignment Facility of the ISIS spallation neutron source. A method for both characterizing the quality of the sample and aligning it in a particular scattering plane is introduced. A software package written for this instrument is presented, and its utility is demonstrated by way of an example of the structural characterization of large single crystals of Pb(Mg <subscript>1/3</subscript> Nb <subscript>2/3</subscript> )O <subscript>3</subscript> . Extensions and modifications of characterization instruments for future improved beamlines are suggested. It is hoped that this software will be used by the neutron community for pre-characterizing large single crystals for spectroscopy experiments and that in the future such a facility will be included as part of the spectroscopy suite at other spallation neutron sources.<br /> (© Zihao Liu et al. 2021.)

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