Investigation of Al Kα satellite lines through a high-efficiency multi-channel FSSR

IF 3.1 2区化学 Q2 CHEMISTRY, ANALYTICAL

Journal of Analytical Atomic Spectrometry Pub Date : 2024-10-08 DOI:10.1039/D4JA00197D

Zexian Zhou, Rui Cheng, Huiyao Du, Shengzhen Yi, Fen Fu, Guodong Wang, Lulin Shi, Zhao Wang, Xuejian Jin, Yanhong Chen, Yanshi Zhang, Liangwen Chen, Jie Yang and Maogen Su

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Abstract

Investigating the interactions between energetic electrons and metals, which generate diagram lines and satellite lines, can provide insights into atomic de-excitation dynamics, chemical compositions, and ionization cross-sections. In this paper, we introduce a self-developed multi-channel Focusing Spectrometer with Spatial Resolution (FSSR) and measure K-shell X-ray spectra from an Al target impacted by an electron beam. Our results show the K_α diagram line and satellite lines K_αLⁿ (n = 1–4). The high-contrast spectral result demonstrates the efficiency and sensitivity of our FSSR in detecting these satellite lines. Additionally, we compare the energy shifts of different satellite line groups relative to the diagram line with theoretical models. We also calculate the Al KL double ionization cross-sections and estimate the TS2 process cross-sections.

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通过高效多通道 FSSR 勘测 Al Kα 卫星线路

高能电子和金属之间的相互作用会产生图线和卫星线，研究高能电子和金属之间的相互作用可以深入了解原子去激化动力学、化学成分和电离截面。在本文中，我们介绍了自主研发的多通道空间分辨率聚焦光谱仪（FSSR），并测量了被电子束撞击的铝靶的 K 壳 X 射线光谱。结果显示了 Kα 图线和卫星线 KαLn (n = 1-4)。高对比度的光谱结果证明了我们的 FSSR 在探测这些卫星线方面的效率和灵敏度。此外，我们还将不同卫星线组相对于图线的能量偏移与理论模型进行了比较。我们还计算了 Al KL 双电离截面，并估算了 TS2 过程截面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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