Work

Development of a novel tunable gradient permanent quadrupole magnet

Year: 2025

Type: article

Abstract: Addressing the demands for compactness and tunability in magnet systems for fourth-generation light sources, this paper presents the design and development of a novel tunable permanent quadrupole magnet (PQM) prototype. The prototype achieves a maximum field gradient of 65 T / m and demonstrates a continuous tuning range of 39 T / m . Within the effective aperture, normalized multipole field components are maintained below 5 × 10 − 4 . Experimental validation confirms that the prototype meets the engineering design requirements for the Hefei Advanced Light Facility. Compared to conventional electromagnetic quadrupoles, this PQM features a compact structure, with negligible power consumption and high magnetic field quality, representing a promising technology for advanced synchrotron radiation light sources and free-electron lasers.

Source: Physical Review Accelerators and Beams

DOI: 10.1103/cwdp-rpfx

Authors: Shaoxiang Dong, Yimin Yang, Bingshun Zhang, Yiyue Wang, Guangyao Feng

Institutions: University of Science and Technology of China, National Synchrotron Radiation Laboratory

Language: English

Topic: Particle accelerators and beam dynamics

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funders: Ministry of Science and Technology of the People's Republic of China, National Key Research and Development Program of China

Award: G918090901