同步辐射能量稳定性测量的原位/操作法。

IF 2.5 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2024-11-01 Epub Date: 2024-10-15 DOI:10.1107/S160057752400852X

Shangyu Si, Zhongliang Li, Lian Xue, Ke Li

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引用次数: 0

摘要

基于正交衍射成像的Laue晶体/分析器可以利用衍射过程中的色散效应解耦光子束的能量/波长和布拉格角，从而引入了一种测量同步辐射光子束稳定性的新型原位/操作法。该方法被用于测量上海同步辐射设施 BL09B 和 BL16U 上光子束的能量抖动和漂移。实验结果表明，该方法能以 meV 级的能量分辨率和 ms 级的时间响应，快速测量不同光源（包括弯曲磁铁和减压器）的光束稳定性。

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In situ/operando method for energy stability measurement of synchrotron radiation.

A novel in situ/operando method is introduced to measure the photon beam stability of synchrotron radiation based on orthogonal diffraction imaging of a Laue crystal/analyzer, which can decouple the energy/wavelength and Bragg angle of the photon beam using the dispersion effect in the diffraction process. The method was used to measure the energy jitter and drift of the photon beam on BL09B and BL16U at the Shanghai Synchrotron Radiation Facility. The experimental results show that this method can provide a fast way to measure the beam stability of different light sources including bending magnet and undulator with meV-level energy resolution and ms-level time response.

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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.