为上海软X射线自由电子激光装置研制并调试一台宽带在线X射线光谱仪。
Development and commissioning of a broadband online X-ray spectrometer for the SXFEL Facility.
作者信息
Yang Zhicheng, Zhang Ximing, Geng Heping, Chen Jiahua, Feng Chao, Liu Bo, Li Bin
机构信息
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.
Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.
出版信息
J Synchrotron Radiat. 2024 Sep 1;31(Pt 5):1373-1381. doi: 10.1107/S1600577524005812. Epub 2024 Jul 29.
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.
一台宽带在线X射线光谱仪已在上海软X射线自由电子激光装置的SUD光束线设计并投入使用，该光束线可为用户实验提供自放大自发辐射（SASE）和种子自由电子激光（FEL）脉冲，光子能量范围为50 - 620 eV。通过在线测量在92 eV和249 eV校准的光谱仪分辨率分别约为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区分FEL光谱中的精细结构，以确定其脉冲长度。
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