Design of a Permanent Magnet with Hezagonal Cavity for Small Animal Magnetic Resonance Imaging
For the low field small animal mangetic resonance imaging (MRI) devices, the three-dimensional numerical simulations of a 1.5 T permanent magnet were performed. The 1.5 T permanent magnet has a hexagonal cavity and is considered an utmost model, transcending the limitation of the remanence of magnetic material. As an applied model, a 0.5 T permanent magnet was designed and manufactured. Compared with other yoked magnets, this hexagon magnet has two important advantages for small animal MRI. One advantage is that the magnetic density of hexagon magnet is adjacent to the residual induction of magnetic materials. The other advantage is the large usable volume that is achieved in the homogenouse magnetic field produced by hexagon magnet.
small animal MRI permanent magnet hezagon magnet parallel connection of magnetic circuit
Liu Zhi-wen Zhao Wei Xia Ping-chou
School of Information Science and Technology Beijing Institute of Technology Beijing 100081,P.R.Chin Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100080,P.R.China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）