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首页> 外文期刊>Physical Review. Accelerators and Beams >Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors
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Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors

机译：通过快速校正器的正弦波激励进行快速精确的磁体晶格校正技术

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摘要

A novel technique has been developed to improve the precision and shorten the measurement time of the LOCO (linear optics from closed orbits) method. This technique, named AC LOCO, is based on sine-wave (ac) beam excitation via fast correctors. Such fast correctors are typically installed at synchrotron light sources for the fast orbit feedback. The beam oscillations are measured by beam position monitors. The narrow band used for the beam excitation and measurement not only allows us to suppress effectively the beam position noise but also opens the opportunity for simultaneously exciting multiple correctors at different frequencies (multifrequency mode). We demonstrated at NSLS-II that AC LOCO provides better lattice corrections and works much faster than the traditional LOCO method.
机译：已经开发出一种新颖的技术来提高精度并缩短LOCO（闭合轨道的线性光学）方法的测量时间。这项名为AC LOCO的技术基于通过快速校正器的正弦波（ac）光束激励。这种快速校正器通常安装在同步加速器光源上，用于快速轨道反馈。光束振荡由光束位置监控器测量。用于光束激励和测量的窄带不仅使我们能够有效地抑制光束位置噪声，而且还为同时激励不同频率（多频模式）的多个校正器提供了机会。我们在NSLS-II上演示了AC LOCO提供了更好的晶格校正，并且比传统的LOCO方法运行得更快。

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