A robust smoothing analysis strategy for improving particle accelerator alignment and installation accuracy and efficiency based on HALF design
A robust smoothing analysis strategy for improving particle accelerator alignment and installation accuracy and efficiency based on HALF design
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基于半设计的稳健平滑分析策略，用于提高粒子加速器对准和安装精度和效率
DOI：
10.1016/j.nima.2020.164468
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发表时间：
2020-11
期刊：
影响因子：
--
通讯作者：
Jiaxin Chen
中科院分区：
文献类型：
--
作者：
Zhaoyi Wang;Wei Wang;Xiaoye He;Xiao Li;Tao Luo;Jiaxin Chen
正在建设中的第四代同步辐射光源对对准测量的精度和效率要求比前一代光源更高。本文引入了一种以减小相对位置误差为目标的鲁棒平滑分析策略，实现了磁中心轨道的平滑。首先，基于粗差检测对原始数据进行预处理。然后，利用parzen窗口函数的曲线拟合对磁中心的轨道数据进行平滑分析和迭代。最后利用物理加速器计算终止迭代。基于合肥先进光设施的仿真结果表明，采用该策略前后的物理计算结果对比表明，该策略能显著提高光束质量，而现有方法的改进幅度较小。此外，与其他方法相比，该策略需要调整的磁铁数量更少。该研究可为第四代光源的建设提供有力的技术保障。
The fourth-generation synchrotron radiation light source under construction has a higher requirement for alignment measurement than former-generation light sources, including the accuracies and efficiencies. In this paper, a robust smoothing analysis strategy that aims to reduce relative position errors is introduced to smooth the magnetic centers’ orbit. First, we pre-process the original data based on gross error detection. Then, we do a smooth analysis of the data of the magnetic centers’ orbit and iteration by using the curve fitting of the Parzen-window function. Finally, the physical accelerator calculation is utilized to terminate the iteration. Simulation results based on the Hefei Advanced Light Facility show that the comparison between the physical calculation results before and after using this strategy verifies that it can dramatically improve beam quality, which has a slight improvement concerning existing methods. Besides, this strategy requires lower quantities of magnets that need to be adjusted, less than that of other methods. This research can provide a robust technical guarantee for the construction of the fourth-generation light source.
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DOI：
10.1109/pac.1995.505462
发表时间：
1995-05
期刊：
Proceedings Particle Accelerator Conference
影响因子：
--
作者：
H. Friedsam;M. Penicka;S. Zhao
通讯作者：
H. Friedsam;M. Penicka;S. Zhao
影响因子：
--
作者：
PARZEN, E
通讯作者：
PARZEN, E
影响因子：
20.6
作者：
HARRIS, FJ
通讯作者：
HARRIS, FJ
影响因子：
3.6
作者：
D. Missiaen;J. Fuchs
通讯作者：
D. Missiaen;J. Fuchs
DOI：
10.1109/pac.1997.753378
发表时间：
1997-05
期刊：
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)
影响因子：
--
作者：
M. Pietryka;M. Gaydosh
通讯作者：
M. Pietryka;M. Gaydosh