为SXFEL设施开发和调试一台宽带在线X射线光谱仪
Zhicheng Yang1, Ximing Zhang2, Heping Geng2
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.
Journal of synchrotron radiation
|July 29, 2024
概括
上海软X射线自由电子激光设施的新型X射线光谱仪为自由电子激光 (FEL) 脉冲提供了高分辨率测量. 这种先进的仪器有助于分析FEL频谱的细结构和确定脉冲长度.
科学领域:
- 光子科学是一种科学.
- 频谱学是一种光谱学.
- 自由电子激光技术的自由电子激光技术.
背景情况:
- 上海软X射线自由电子激光 (FEL) 设施提供SASE和种子FEL脉冲.
- 描述FEL属性对于用户实验至关重要.
研究的目的:
- 设计和委托一个宽带在线X射线光谱仪.
- 为了使FEL脉冲的高分辨率光谱分析.
主要方法:
- 开发一个宽带在线X射线光谱仪.
- 在线校准使用92 eV和249 eV的测量.
- 绝对光子能量通过电子飞行时间谱仪进行表征.
主要成果:
- 该光谱仪在50-620 eV的光子能量范围内工作.
- 在92 eV时达到约2万的分辨能力,在249 eV时达到约1万5千的分辨能力.
- 证明了在FEL频谱中区分细结构的能力.
结论:
- 委托的光谱仪为FEL分析提供了高能分辨率.
- 允许精确确定FEL脉冲特征.
- 支持SUD光束线上的高级用户实验.
相关概念视频
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