Said Ayman H, Sinn Harald, Toellner Thomas S, Alp Ercan E, Gog Thomas, Leu Bogdan M, Bean Sunil, Alatas Ahmet
Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA.
European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany.
J Synchrotron Radiat. 2020 May 1;27(Pt 3):827-835. doi: 10.1107/S1600577520002854. Epub 2020 Apr 6.
Inelastic X-ray scattering is a powerful and versatile technique for studying lattice dynamics in materials of scientific and technological importance. In this article, the design and capabilities of the momentum-resolved high-energy-resolution inelastic X-ray spectrometer (HERIX) at beamline 30-ID of the Advanced Photon Source are reported. The instrument operates at 23.724 keV and has an energy resolution of 1.3-1.7 meV. It can accommodate momentum transfers of up to 72 nm, at a typical X-ray flux of 4.5 × 10 photons s meV at the sample. A suite of in situ sample environments are provided, including high pressure, static magnetic fields and uniaxial strains, all at high or cryogenic temperatures.
非弹性X射线散射是一种强大且通用的技术，用于研究具有科学和技术重要性的材料中的晶格动力学。本文报道了先进光子源30-ID光束线的动量分辨高能分辨率非弹性X射线光谱仪（HERIX）的设计和性能。该仪器工作在23.724 keV，能量分辨率为1.3 - 1.7 meV。它能够在样品处典型X射线通量为4.5×10光子/秒/毫电子伏特的情况下，实现高达72 nm的动量转移。提供了一套原位样品环境，包括高压、静磁场和单轴应变，所有这些都可在高温或低温下实现。
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