用于自由电子激光装置的波荡器校正和轨道准直方法

By observing the spectral characteristics of the spontaneous emission of the undulator on a spectrometer, the undulator unit was decoupled and corrected, solving the problems of undulator parameters and orbit collimation in the soft X-ray band, and improving the dimming efficiency and radiation performance of the free electron laser device.

CN122203027BActive Publication Date: 2026-07-17SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve efficient undulator parameter correction and orbit collimation in the soft X-ray band, especially under conditions that do not rely on complete spot imaging, leading to a decrease in the dimming efficiency and radiation performance of free-electron laser devices.

Method used

By observing the spectral characteristics of the spontaneous emission of the undulator on a spectrometer, and using parameters such as the radiation center wavelength, radiation intensity, and spot morphology, decoupling correction is performed. The undulator units are corrected one by one to find the optimal operating point, which is suitable for low- and medium-energy free electron laser devices.

Benefits of technology

This technology improves undulator utilization and free-electron laser radiation performance without relying on complete spot imaging, thereby enhancing dimming efficiency and device operating efficiency.

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Abstract

本发明提供一种用于自由电子激光装置的波荡器校正和轨道准直方法,包括:提供实验装置;利用光谱仪观测单个波荡器单元自发辐射的频谱特征;基于观测到的频谱特征,以辐射中心波长为核心判据,对单个波荡器单元的电子束轨道和波荡器参数进行解耦校正,得到最佳工作点;将当前的波荡器单元错开,加入下一个波荡器单元,并重复校正的步骤,直到校正完所有波荡器单元;将所有的波荡器单元均恢复至最佳工作点,使得自由电子激光装置输出所需的自由电子激光。本发明的方法在进行轨道校正时,将各个波荡器单独校正,且将单个波荡器辐射的中心波长位置作为核心判据,适用于软X射线波段的自由电子激光装置,不依赖于完整光斑成像。
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