HLS-II的光谱学光束线升级

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-08-20 DOI:10.1016/j.nima.2025.170953

Jingjing Du , Zimeng Wang , Zhanglang Xu , Haibin Pan , Lihui Wu , Xusheng Zheng , Chaoyang Li , Zhengkun Liu , Xuewei Du , Qiuping Wang

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引用次数: 0

摘要

基于多光谱组合和现场/运行条件的同步辐射表征新模型为多学科前沿研究提供了关键支撑。然而，这也对光束线的能量分辨能力和稳定性提出了挑战。我们升级了合肥光源ii （HLS-II）的光发射光谱（BL10B）光束线，并展示了开发先进软x射线表征平台的可行路径。升级后的光束线采用可变夹角平面光栅单色仪，覆盖100 eV至1000 eV的软x射线光子能量范围。它在244.4 eV时的光谱分辨能力为4800，在整个工作能量范围内优于1000。在244.4 eV时，光子通量为5 × 1010光子/s，在140 eV时，光子通量可达1.3 × 1011光子/s。能量重复性优于2mev。升级后，光束线的性能有了明显的提高。

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Upgrade of the photoemission spectroscopy beamline at HLS-II

The new model of synchrotron radiation characterization, based on multi-spectral combination and in-situ/operating conditions, provides key support for multi-disciplinary frontier research. However, it also poses challenges to the energy resolving power and stability of the beamline. We upgraded the photoemission spectroscopy (BL10B) beamline at Hefei Light Source-II (HLS-II) and demonstrated a feasible path for developing an advanced soft X-ray characterization platform. The upgraded beamline utilizes a variable-included-angle plane grating monochromator to cover the soft X-ray photon energy range from 100 eV to 1000 eV. It achieves a spectral resolving power of 4800 at 244.4 eV and better than 1000 across the entire working energy range. The photon flux is 5 ×

1 0^{10}

photons/s at 244.4 eV and can reach up to 1.3 ×

1 0^{11}

photons/s at 140 eV. The energy repeatability is better than 2 meV. After the upgrade, the performance of the beamline has been significantly improved.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.