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Updated: Jan 9, 2026

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在高重复率的XFEL源中对时间解析的X射线溶液散射的分析策略

Morten Lunn Haubro¹, Diana Bregenholt Zederkof², Dmitry Khakhulin²

¹Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.

Journal of synchrotron radiation

|December 3, 2025

概括

在X射线自由电子激光器 (XFEL) 中的高重复率会导致样品喷射扰动. 交替激发方案和背景减去有效地减轻这些工件在时间解析的X射线溶液散射实验.

科学领域:

在X射线科学方面,X射线科学
材料科学是一种材料科学.
频谱学是一种光谱学.

背景情况:

现在,X射线自由电子激光器 (XFEL) 在千赫和兆赫的重复率下运行.
高重复率增加了集成流量,使新的实验成为可能,但对样品的输送和稳定性构成挑战.
X射线相互作用可以扰乱或蒸发溶液相样本喷气,特别是在高重复率.

研究的目的:

为了描述欧洲XFEL的X射线诱导喷气扰动.
了解这些扰动如何影响时间解析的X射线溶液散射数据.
开发和验证用于减轻高重复率引起的实验工件的方法.

主要方法:

在高重复率的X射线自由电子激光 (XFEL) 条件下对样本喷射动态的描述.
在Femtosecond X-ray Experiments (FXE) 仪器上进行时间解析的X射线溶液散射测量.
实现和评估一个交替激发方案与背景减去.

主要成果:

高的X射线重复率会导致溶液样本喷流的显著扰动.
这些扰动在时间解析的X射线溶液散射数据中引入背景信号.
交替刺激方案与仔细的背景减去相结合,有效地减轻了这些工件.

结论:

开发的方法成功地解决了在XFEL中高重复率引起的实验文物.
这种方法提高了时间解析的X射线溶液散射数据的可靠性.
这些发现对于在高重复率源时代推进基于XFEL的溶液散射研究至关重要.

关键词:

在XFELEL中,高的重复率,高的重复率样品的销毁样品的破坏溶液的散射溶液的散射

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