Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2010, Vol. 21 ›› Issue (5): 257-260 doi: 10.13538/j.1001-8042/nst.21.257-260


Correction of integrated multipoles of five IDs in SSRF

LU Jie1, 2 ZHOU Qiaogen1,* WANG Hongfei1 ZHANG Wei1, 2   

  1. 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China 2Graduate University of Chinese Academy of Science, Beijing 100049, China
LU Jie, ZHOU Qiaogen, WANG Hongfei, ZHANG Wei. Correction of integrated multipoles of five IDs in SSRF.Nuclear Science and Techniques, 2010, 21(5): 257-260     doi: 10.13538/j.1001-8042/nst.21.257-260


Five of the seven Phase I beamlines of Shanghai Synchrotron Radiation Facility (SSRF) are based on insertion devices (IDs), which include two wigglers, one elliptically polarized undulator (EPU), and two in-vacuum undulators. There were some inevitable field integral errors in manufacturing the IDs, and these would affect performance of the storage ring. The integrated multipoles were corrected by using the magic fingers technique. In this paper, we report the correction method based on the simulated-annealing algorithm. The results show that the integrated multipole components were corrected to meet the design specifications.

Key words: Insertion devices, Magic Fingers, Integrated multipole components