Speaker
Shang Lu
(IHEP)
Description
In order to achieve 10μm pre-alignment accuracy of high energy photon source (HEPS) 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 absolute position measurement accuracy is within 7.1μm. 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, all 288 girders of the storage ring have been pre-aligned. This report will introduce the detailed steps and results of pre-alignment.
Author
Shang Lu
(IHEP)
