为 SXFEL 设施开发和调试宽带在线 X 射线光谱仪。

IF 2.5 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2024-09-01 Epub Date: 2024-07-29 DOI:10.1107/S1600577524005812

Zhicheng Yang, Ximing Zhang, Heping Geng, Jiahua Chen, Chao Feng, Bo Liu, Bin Li

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引用次数: 0

摘要

上海软X射线自由电子激光装置的SUD光束线设计并调试了一台宽带在线X射线光谱仪，可为用户实验提供SASE和种子FEL脉冲，光子能量范围为50-620 eV。通过在 92 eV 和 249 eV 在线测量校准，光谱仪的分辨力分别为 ∼20000 和 ∼15000，绝对光子能量由电子飞行时间光谱仪表征。光谱仪提供的高能量分辨率可以分辨出 FEL 光谱中的细微结构，从而确定其脉冲长度。

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Development and commissioning of a broadband online X-ray spectrometer for the SXFEL Facility.

A broadband online X-ray spectrometer has been designed and commissioned at the SUD beamline of the Shanghai Soft X-ray Free-Electron Laser Facility, which can deliver both SASE and seeded FEL pulses to user experiments, spanning the photon energy range of 50-620 eV. The resolving powers of the spectrometer calibrated via online measurement at 92 eV and 249 eV are ∼20000 and ∼15000, respectively, and the absolute photon energy is characterized by an electron time-of-flight spectrometer. The high energy resolution provided by the spectrometer can differentiate the fine structure in the FEL spectrum, to determine its pulse length.

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来源期刊

Journal of Synchrotron Radiation INSTRUMENTS & INSTRUMENTATIONOPTICS&-OPTICS

CiteScore

5.60

自引率

12.00%

发文量

289

审稿时长

1 months

期刊介绍： Synchrotron radiation research is rapidly expanding with many new sources of radiation being created globally. Synchrotron radiation plays a leading role in pure science and in emerging technologies. The Journal of Synchrotron Radiation provides comprehensive coverage of the entire field of synchrotron radiation and free-electron laser research including instrumentation, theory, computing and scientific applications in areas such as biology, nanoscience and materials science. Rapid publication ensures an up-to-date information resource for scientists and engineers in the field.