Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner

doi:10.1109/TASC.2020.3030128

	Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner
	Hu, Geli 1; Ni, Zhipeng 2; Zhang, Baogui1 ; Jiang, Tianzi1
发表期刊	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN	1051-8223
	2021-03-01
卷号	31 期号:2 页码:6
通讯作者	Hu, Geli(geli.hu@hotmail.com)
摘要	A 4.7 T compact superconducting magnet system for active shielding animal magnetic resonance imaging scanner was designed in this work. The resultingmagnet consists of nine coaxial coils symmetrical about the z-axis. The innermost main coils and outermost shielding coils were made up of six inner coils with the positive current direction and three outer coils with the negative current direction, respectively. These nine superconducting coils contribute their efforts together to produce a 4.7 T main background magnetic field, and the peak-to-peak field homogeneity was 2 ppm over a 20 cm region of interest (ROI). The diameter of room temperature bore was 400 mm, which is large enough for most animals imaging, and five Gauss fringe field is restricted within an elliptical region with the size of 1.5 m in radial and 2.2 m in axial direction, much smaller than the regular requirement 2.5 m and 4.0 m, respectively. Ahybrid numericalmethodology that combined linear programming and nonlinear optimization algorithm for actively shielding homogeneous superconducting magnet was proposed here. From the simulation results, we can see that the homogeneity over ROI and limitation to the five Gauss fringe field can be well controlled, and so does the maximum electromagnetic stress.
关键词	Actively shielding (AS) animal magnetic resonance imaging (MRI) electromagnetic stress homogeneous superconducting magnet hybrid numerical methodology
DOI	10.1109/TASC.2020.3030128
关键词[WOS]	MINIMUM STORED ENERGY
收录类别	SCI
语种	英语
资助项目	Sino-Australian Cooperation Project of Chinese Academy of Sciences[173211KYSB20160004]
项目资助者	Sino-Australian Cooperation Project of Chinese Academy of Sciences
WOS研究方向	Engineering ; Physics
WOS类目	Engineering, Electrical & Electronic ; Physics, Applied
WOS记录号	WOS:000749415800001
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
七大方向——子方向分类	医学影像处理与分析
引用统计
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/47335
专题	脑图谱与类脑智能实验室_脑网络组研究
通讯作者	Hu, Geli
作者单位	1.Chinese Acad Sci, Inst Automat, Brainnetome Ctr, Beijing 100864, Peoples R China 2.Neusoft Med Syst Co Ltd, Shenyang 110179, Liaoning, Peoples R China
第一作者单位	中国科学院自动化研究所
通讯作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Hu, Geli,Ni, Zhipeng,Zhang, Baogui,et al. Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2021,31(2):6.
APA	Hu, Geli,Ni, Zhipeng,Zhang, Baogui,&Jiang, Tianzi.(2021).Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,31(2),6.
MLA	Hu, Geli,et al."Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 31.2(2021):6.