Knowledge Commons of Institute of Automation,CAS
Compact MR Magnet Design Methodology for Superconducting Animal MRI Scanner | |
Hu, Geli1; Ni, Zhipeng2; Zhang, Baogui1![]() ![]() | |
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. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论