| 辐照受损Wiggler的再充磁利用 |
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| 引用本文： | 李亚南,李永贵,陆辉华,李成泽.辐照受损Wiggler的再充磁利用[J].中国物理 C,2001,25(9):903-908. |
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| 作者姓名： | 李亚南 李永贵 陆辉华 李成泽 |
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| 作者单位： | 中国科学院高能物理研究所!北京100080 |
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| 基金项目： | 国家 8 63计划激光领域资助~~ |
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| 摘 要： | 报导了北京自由电子激光装置中所用永磁Wiggler的辐照受损情况及再充磁利用的研究,对于辐照受损后场强有近三分之一下降的Wiggler,对其磁块经再充磁、优化排列、重新组装,可恢复到原来的场强水平.初步实验表明,再充磁Wiggler在相同电子束流的辐射条件下应用时间比先前Wiggler多了一倍.最后,还分析了磁体辐射损伤的机制和改进办法.
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| 关 键 词： | 自由电子激光 Wiggler 辐照损伤 充磁 |
| 收稿时间： | 2000-8-23 |
Remagnetizing Utilization of the Radiation Damaged Wiggler |
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| LI Ya,Nan\ LI Yong,Gui\ LU Hui,Hua\ LI Cheng,Ze.Remagnetizing Utilization of the Radiation Damaged Wiggler[J].High Energy Physics and Nuclear Physics,2001,25(9):903-908. |
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| Authors: | LI Ya Nan\ LI Yong Gui\ LU Hui Hua\ LI Cheng Ze |
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| Abstract: | In this paper,a study of the radiation damage and re magnetizing utilization of the permanent magnet wiggler used in the Beijing Free Electron Laser facility is reported. For the radiation damaged wiggler,the magnetic strength can be restored to the original value by magnet re magnetization,arrangement optimization and re assembly. The preliminary experimental result shows that the effective lifetime of the re magnetized wiggler can be longer than the original wiggler under the same beam radiation condition. Also the mechanism of the magnet damage by radiation and the modification method are discussed. |
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| Keywords: | free electron laser wiggler radiation damage magnetization |
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