Zhang Fayuan, Sun Zhipeng, Qiao Yuxi, Qiao Shan
State Key Laboratory of Functional Materials for Informatics and CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
J Synchrotron Radiat. 2020 Nov 1;27(Pt 6):1494-1498. doi: 10.1107/S1600577520011753. Epub 2020 Oct 9.
Constructing vacuum-ultraviolet beamlines at synchrotron radiation facilities with giga-electron volt storage ring results in serious heat load on the beamlines which can reduce their performance. To solve this problem, an APPLE-Knot undulator with eight magnet rows has been built at the Shanghai Synchrotron Radiation Facility and has achieved very good performance. However, its performance in vertical polarization mode is imperfect. Here, a new configuration of a magnet-merged APPLE-Knot undulator that has achieved a better performance is reported.
在具有千兆电子伏特储存环的同步辐射设施中建造真空紫外光束线会导致光束线上出现严重的热负载，这会降低其性能。为了解决这个问题，上海同步辐射设施建造了一个具有八排磁体的APPLE-Knot波荡器，并取得了非常好的性能。然而，它在垂直偏振模式下的性能并不理想。在此，报道了一种磁体合并的APPLE-Knot波荡器的新配置，其性能更优。
