A Homogeneous Superconducting Magnet System for EBIT

• Published in: IEEE transactions on applied superconductivity 2014-08, Vol.24 (4), p.1-4
• Main Authors: Zhu, Jiawu, Ren, Yong, Wang, Futang, Chen, Wenge, Chen, Zhiyou
• Format: Article
• Language: English
• Subjects: Applied sciences; Coils; Design engineering; Electrical engineering. Electrical power engineering; Electromagnets; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics; Electronics; Exact sciences and technology; Homogeneity; Magnetic fields; Magnetic resonance imaging; Power electronics, power supplies; Power supplies; Superconducting coils; Superconducting magnets; Superconductivity; Switches; Titanium base alloys; Various equipment and components; Wires
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2014.2311406

A homogeneous magnetic-field superconducting magnet with a room-temperature bore of 75 mm and a central field of 4.5 T was designed, manufactured, and tested. As a result of magnetic-field homogeneity considerations, the magnet is composed of a pair of split coils. Both coils are connected in series and charged with a single power supply. A bobbin with TA2 Ti alloy material was employed for reducing the effect of material permeability. The magnetic-field homogeneity is better than ±200 ppm from -10 to 10 mm in the axial direction. The magnet can be operated in persistent mode with a superconducting switch. In this paper, the magnet design, manufacture, mechanical behavior analysis, and the test results of the magnet are presented.