The optimal design method of permanent magnet assemblies with completely open architecture for MRI
The optimal design method of permanent magnet assemblies with completely open architecture for MRI
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DOI：
10.3233/jae-2007-790
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发表时间：
2007
影响因子：
0.6
通讯作者：
Yingying Yao;Junpeng Xie;G. Ni;Guanzhong Hu
中科院分区：
文献类型：
--
作者：
Yingying Yao;Junpeng Xie;G. Ni;Guanzhong Hu
This paper presents a flexible design method to facilitate the construction of permanent magnet assemblies with completely open architectures for the Magnetic Resonance Imaging (MRI). The initial design is based on the ideally analytical assumptions. Then the dimensions and directions of the magnetization of each permanent element are optimized by using a modified genetic algorithm. Numerical implementations show that the proposed method provides a main magnetic field with modified homogeneity and strength at the imaging region, which is defined outside of the magnet structure, and minimizes the cost of the MRI equipment.
