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Updated: Jun 10, 2025

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在现场/操作方法用于测量同步辐射的能量稳定性

Shangyu Si¹, Zhongliang Li¹, Lian Xue¹

¹Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 239 Zhangheng Road, Pudong New District, Pudong 201204, People's Republic of China.

Journal of synchrotron radiation

|October 15, 2024

概括

一种新方法使用直角衍射成像测量同步辐射光子束的稳定性. 该技术为各种光源提供快速,高分辨率的测量,对于先进的研究至关重要.

科学领域:

射线科学与技术X射线科学与技术
材料的表征材料的表征.
同步子辐射应用.

背景情况:

光子束的稳定性对于同步子光源的高分辨率实验至关重要.
测量光束稳定的现有方法可能耗时或缺乏足够的分辨率.
分离束的能量和角度对于准确的稳定性评估至关重要.

研究的目的:

引入一种新的 in situ/operando 方法来测量光子束稳定性.
为了证明光子束能量/波长和布拉格角度脱的能力.
评估上海同步辐射设施的光子束的能量动和漂移.

主要方法:

使用与Laue晶体/分析仪的直角衍射成像.
在衍射过程中利用分散效应来分离能量和角度.
在BL09B和BL16U光线线上进行测量.

主要成果:

该方法成功测量了光子束的稳定性.
实现了meV级的能量分辨率和ms级的时间响应.
已证明适用于不同的光源,包括曲磁铁和波浪器.

结论:

开发的方法提供了一种快速而准确的方法来测量光子束稳定性.
这种技术对于优化同步加速器设施的实验条件是有价值的.
该方法的高分辨率和响应时间为光束线诊断开辟了新的可能性.

关键词:

劳埃的衍射是没有的.能源稳定性能源稳定性在现场 (in situ) 进行.同步子辐射是同步子辐射.

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