학술논문

Electromagnetic Structure Design of the Whole-Body 14 T MRI Magnet
Document Type
Periodical
Source
IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 34(3):1-5 May, 2024
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Magnetic resonance imaging
Coils
Superconducting magnets
Windings
Magnetic separation
Conductors
Magnetic shielding
14 T MRI
back field magnet winding
electromagnetic structure design
Language
ISSN
1051-8223
1558-2515
2378-7074
Abstract
The Institute of Plasma Physics Chinese Academy of Sciences (ASIPP) has announced a project to design a 14 T MRI magnet with a 900 mm warm bore and comprised of Nb3Sn Rutherford cables, the homogeneity of the magnetic field is better than 0.5 ppm in a 22 cm diameter spherical volume. This paper presents three design schemes for 14 T MRI magnets based on manufacturing technology perspective, which are layered solenoid design, multi-coil design and multi-coil layered design, and compares them from the aspects of mechanical design, inductance and total conductor usage to obtain the optimal scheme.