Author: Men, L.L.
Paper Title Page
THPPP020 The Pre-alignment of High Energy Photon Source Storage Ring 310
 
  • S. Lu, L. Dong, L.L. Men, X.L. Wang
    IHEP, Beijing, People’s Republic of China
  • J. Liang, T. Wang
    DNSC, Dongguan, People’s Republic of China
 
  In order to achieve 10 micrometer pre-alignment accuracy of storage ring in transverse and vertical, four laser trackers were used for set up a four-station multilateration measurement system. Experiment results show that the relative displacement measurement accuracy is better than 3 micrometer in 3-meter workpiece range, which can satisfy the real-time position feedback accuracy of the magnets in the process of ultra-high-precision pre-alignment. After two years of research and development, three pre-alignment standard workstations have been established. And the laser multilateration measurement method is adopted to the pre-alignment of the three, five and eight magnet girders in the storage ring of HEPS. Currently, 240 out of 288 girders have been pre-aligned after half a year of work.  
DOI • reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-THPPP020  
About • Received ※ 07 November 2023 — Revised ※ 08 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 03 December 2023
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