Speaker
Yi Jiao
(Institute of High Energy Physics)
Description
The High Energy Photon Source (HEPS) is a 34-pm, 1360-m storage ring light source being built in the suburb of Beijing, China. In the HEPS storage ring, a proportion of quadrupoles and sextupoles are equipped with trim coils for horizontal and vertical orbit correction. For these magnets, the main field and corrector fields may have non-ignorable impact on each other. We have carried out detailed measurements and subsequent data analysis of these magnets. It is observed that changing the corrector currents in the presence of constant main current, can lead to a relative deviation of the main field of 0.1 percent level. In this paper, we will report the measurement procedure and main results.
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Primary authors
Hongfei Ji
(Institute of High Energy Physics)
Nan Li
(Institute of High Energy Physics)
Xianjing Sun
(Institute of High Energy Physics)
Mei Yang
(Chinese Academy of Sciences)
Co-authors
Fu-San Chen
(Institute of High Energy Physics)
Yuan Guo
(Institute of High Energy Physics)
Yi Jiao
(Institute of High Energy Physics)
yfeng Wu
(Chinese Academy of Sciences)
Yingshun Zhu
(Institute of High Energy Physics)
