Finding the magnetic center of sextupole using vibrating wire technique

TL;DR

This paper demonstrates the use of vibrating wire technique to accurately locate the magnetic center of sextupole magnets, ensuring precise alignment for high-quality synchrotron radiation in HEPS.

Contribution

It introduces a method for measuring the magnetic center of sextupoles using vibrating wire, achieving high precision aligned with theoretical expectations.

Findings

Magnetic field distribution matches theoretical models.

Vibrating wire effectively measures magnetic center.

Measurement precision meets design requirements.

Abstract

In order to obtain stable and high-quality synchrotron radiation photon, the magnets in the storage ring of High Energy Photon Source(HEPS) need to have a stable support and precise positioning. The vibrating wire technique can be used to pre-align the quadrupoles and sextupoles on one girder with high precision to meet the extremely low emittance requirement of HEPS. This thesis introduces the measurement of magnetic center of sextupole using vibrating wire. According to the measurement results, the magnetic field distribution is consistent with theoretical expectation. And vibrating wire has achieved the purpose of measuring the magnetic center and has reached a certain precision.