Shim Coils Design for Halbach Magnet Based on Target Field Method

Verfasser / Beitragende:
[Yajie Xu, Qiaoyan Chen, Guangcai Zhang, Zhiguo Pei, Xiaodong Yang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Magnetic Resonance, 46/7(2015-07-01), 823-836
Format:
Artikel (online)
ID: 60554557X
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024 7 0 |a 10.1007/s00723-015-0691-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00723-015-0691-2 
245 0 0 |a Shim Coils Design for Halbach Magnet Based on Target Field Method  |h [Elektronische Daten]  |c [Yajie Xu, Qiaoyan Chen, Guangcai Zhang, Zhiguo Pei, Xiaodong Yang] 
520 3 |a A modified target field method is presented to the construction of shim and gradient coils for Halbach-type magnet featuring cylindrical magnet and transversal magnetic field direction. With Biot-Savart law, magnetic field is deduced from current density distribution, and two solutions corresponding to relations between spherical harmonic functions degree m and current density degree k, namely $$m=k\pm 1$$ m = k ± 1 are derived. Then combined with magnetic field distribution of target points, current density coefficient $$U_{\rm q}$$ U q is adopted to calculate stream function, based on which the coils' structure can be obtained. An appropriate objective function integrating dissipated energy and relative error is utilized to further improve the design. Examples of X2-Y2 and Y coils indicate that solution corresponding to $$m=k-1$$ m = k - 1 exhibits good agreement with theory in terms of obtaining lower dissipated energy and smaller error rate, suggesting that the algorithm provides an effective, preferable approach for the design of Halbach shim coils. 
540 |a Springer-Verlag Wien, 2015 
700 1 |a Xu  |D Yajie  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
700 1 |a Chen  |D Qiaoyan  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
700 1 |a Zhang  |D Guangcai  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
700 1 |a Pei  |D Zhiguo  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
700 1 |a Yang  |D Xiaodong  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
773 0 |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/7(2015-07-01), 823-836  |x 0937-9347  |q 46:7<823  |1 2015  |2 46  |o 723 
856 4 0 |u https://doi.org/10.1007/s00723-015-0691-2  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00723-015-0691-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xu  |D Yajie  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Qiaoyan  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhang  |D Guangcai  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pei  |D Zhiguo  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Xiaodong  |u Department of Medical Imaging, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, 215163, Suzhou, Jiangsu, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/7(2015-07-01), 823-836  |x 0937-9347  |q 46:7<823  |1 2015  |2 46  |o 723