Abstract
Data-driven approaches in materials science demand the collection of large amounts of data on the target materials at synchrotron beamlines. To accurately gather suitable experimental data, it is essential to establish fully automated measurement systems to reduce the workload of the beamline staff. Moreover, the recent COVID-19 pandemic has further emphasized the necessity of automated and/or remote measurements at synchrotron beamlines. Here, the installation of a new sample changer combined with a high-temperature furnace and a fully automated alignment system on beamline BL04B2 at SPring-8 is reported. The system allows X-ray total scattering measurements of up to 21 samples at different temperatures (from room temperature to 1200°C) to be conducted without any human assistance.
Highlights
Data-driven approaches in materials science have attracted significant attention (Spurgeon et al, 2021) for understanding properties that cannot be predicted by more conventional methods
We installed a new sample changer combined with a hightemperature furnace and fully automated alignment system on beamline BL04B2 at SPring-8
We determined that the standard deviations of the positions across and along the beam were 0.21 mm and 0.24 mm, respectively [Figs. 2(b) and 2(c)]. These values are considered reasonable because the play between the boron nitride (BN) holder and the stage in the furnace is around 0.2 mm and indicate that the standard deviations of the sample positions both across and along the beam are small enough compared with the tunable range of the motors and the size of the X-rays at the sample position
Summary
Data-driven approaches in materials science have attracted significant attention (Spurgeon et al, 2021) for understanding properties that cannot be predicted by more conventional methods. Maximizing the amount of data collected about materials is beneficial To accurately gather such vast amounts of experimental data, it is essential to establish fully automated measurement systems due to limitations with and/or adverse effects from human resources. Looking at the beamlines dedicated to X-ray pair distribution function (PDF) analysis, advanced beamlines such as P02.1 at PETRA III (Dippel et al, 2015), ID-22 at ESRF (Fitch, 2008), 11-ID-B at APS (Chupas et al, 2007) and 28-ID at NSLS II (Palomino et al, 2017) use automated sample changers for high-throughput measurements. There was previously no beamline available for the fully automated measurement of X-ray total scattering for PDF analysis in Japan. Examples of typical measurements of X-ray total scattering and PDF analyses are discussed to show the validity and usefulness of this system
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