期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 41, 期 5, 页码 1504-1507出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2005.845080
关键词
completely open MRI magnet; magnetic dipole; optimization; permanent magnet
A completely open magnet geometry satisfies the requirement of a MRI system for the surgical procedure. This paper presents a new flexible design method to facilitate the construction of a completely open MRI magnet by combining the magnetic dipole pair model and optimization algorithm. A numerical implementation shows that the method provides a main magnetic field with sufficient homogeneity and strength at the imaging region, which is defined outside of the magnet structure, and minimizes the cost of the MRI equipment.
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