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	Biplanar shim coil design for 1.5 t permanent magnet of in vivo animal mri
	You, Xiao Fei1,2; Hu, Li Li1; Yang, Wen Hui1; Wang, Zheng1; Wang, Hui Xian1
刊名	Ieee transactions on applied superconductivity
	2010-06-01
卷号	20期号:3页码:1045-1049
关键词	Biplanar Mri Shim coil Target-field method
ISSN号	1051-8223
DOI	10.1109/tasc.2010.2041537
通讯作者	You, xiao fei(youxiaofei@mail.iee.ac.cn)
英文摘要	This paper presents an approach of designing biplanar shim coils for a 1.5 t permanent magnet of in vivo animal mri. the 1.5 t permanent magnet used in the system has two confronting circular poles, the diameter of which is only 200 mm. active shimming method is applied to improve the magnetic field generated by the magnet. a series of biplanar shim coils are designed which degenerate magnetic field in the form of certain spherical harmonic terms. in this approach, to restrict the current distribution on the coil plane within a finite radius, the current density is described by a summation of trigonometric functions which are similar to the fourier series. the undetermined coefficients of these trigonometric functions can be obtained through a regularization approach based on the target-field method. then the current density distribution is transformed to the winding pattern of the coils using the stream function method. the magnetic fields generated by the shim coils are verified via biot-savart law which shows that this approach of designing shim coils is practical.
WOS关键词	TARGET-FIELD METHOD
WOS研究方向	Engineering ; Physics
WOS类目	Engineering, Electrical & Electronic ; Physics, Applied
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000283559900223
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2407122
专题	中国科学院大学
通讯作者	You, Xiao Fei
作者单位	1.Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	You, Xiao Fei,Hu, Li Li,Yang, Wen Hui,et al. Biplanar shim coil design for 1.5 t permanent magnet of in vivo animal mri[J]. Ieee transactions on applied superconductivity,2010,20(3):1045-1049.
APA	You, Xiao Fei,Hu, Li Li,Yang, Wen Hui,Wang, Zheng,&Wang, Hui Xian.(2010).Biplanar shim coil design for 1.5 t permanent magnet of in vivo animal mri.Ieee transactions on applied superconductivity,20(3),1045-1049.
MLA	You, Xiao Fei,et al."Biplanar shim coil design for 1.5 t permanent magnet of in vivo animal mri".Ieee transactions on applied superconductivity 20.3(2010):1045-1049.

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