Zymaková A, Precek M, Picchiotti A, Błachucki W, Zymak I, Szlachetko J, Vankó G, Németh Z, Sá J, Wiste T, Andreasson J
ELI Beamlines Facility, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 25241, Dolní Břežany, Czech Republic.
Hamburg University and The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, 22761, Hamburg, Germany.
Sci Rep. 2023 Oct 12;13(1):17258. doi: 10.1038/s41598-023-43924-y.
X-ray spectroscopy is a demanded tool across multiple user communities. Here we report on a new station for X-ray emission spectroscopy at the Extreme Light Infrastructure Beamlines Facility. The instrument utilizes the von Hamos geometry and works with a number of different sample types, notably including liquid systems. We demonstrate a simple and reliable method for source position control using two cameras. This approach addresses energy calibration dependence on sample position, which is a characteristic source of measurement uncertainty for wavelength dispersive spectrometers in XES arrangement. We also present a straightforward procedure for energy calibration of liquid and powder samples to a thin film reference. The developed instrumentation enabled us to perform the first experimental determination of the Kα lines of liquidized KFe(CN) as well as powdered and liquidized FeNH(SO). Finally, we report on proof-of-principle use of a colliding jet liquid sample delivery system in an XES experiment.
X射线光谱学是多个用户群体所需要的工具。在此，我们报告在极端光基础设施光束线设施上新建的一个用于X射线发射光谱学的实验站。该仪器采用冯哈莫斯几何结构，可用于多种不同类型的样品，特别是包括液体系统。我们展示了一种使用两个相机进行光源位置控制的简单可靠方法。这种方法解决了能量校准对样品位置的依赖性问题，而这是X射线发射光谱（XES）装置中波长色散光谱仪测量不确定度的一个典型来源。我们还提出了一种将液体和粉末样品与薄膜参考样品进行能量校准的直接程序。所开发的仪器使我们能够首次对液化的KFe(CN)以及粉末状和液化的FeNH(SO)的Kα线进行实验测定。最后，我们报告了在XES实验中对碰撞射流液体样品输送系统原理验证的应用。
