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	A new method for shimming a magnetic field in NMR system
	Jin, Zhe ; Tang, Xin ; Qi, Feng ; Zu, Donglin ; Wang, Weimin
	2007
英文摘要	A new approach has been presented in the paper to gain a uniform magnetic field in NMR system. First, the adopted shimming piece is modeled as a magnetic dipole moment to calculate its magnetization effect on the background field within region of interest. Then, sequential quadratic programming method is utilized to determine the ideal solution for shimming work. Finally, the ideal solution is discretized, and quantization error control technique is prepared for special cases. This new method helps to reduce the inhomogeneity in the region of interest from 56.8 ppm to 14.21 ppm, within one hour in practical shimming work.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000246922600318&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/293358]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Jin, Zhe,Tang, Xin,Qi, Feng,et al. A new method for shimming a magnetic field in NMR system. 2007-01-01.

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