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Journal article · Preprint article

Optimal Value of Series Capacitors for Uniform Field Distribution in Transmission Line MRI Coils

By Zhurbenko, Vitaliy1,2

From

Department of Electrical Engineering, Technical University of Denmark1

Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark2

Center for Hyperpolarization in Magnetic Resonance, Centers, Technical University of Denmark3

Transmission lines are often used as coils in high field magnetic resonance imaging (MRI). Due to the distributed nature of transmission lines, coils based on them produce inhomogeneous field. This work investigates application of series capacitors to improve field homogeneity along the coil. The equations for optimal values of evenly distributed capacitors are derived and expressed in terms of the implemented transmission line parameters.The achieved magnetic field homogeneity is estimated under quasistatic approximation and compared to the regular transmission line resonator.

Finally, a more practical case of a microstrip line coil with two series capacitors is considered.

Language: English
Publisher: Journal of Sensors
Year: 2016
Pages: 1-7
ISSN: 16877268 and 1687725x
Types: Journal article and Preprint article
DOI: 10.1155/2016/3480965
ORCIDs: Zhurbenko, Vitaliy
Keywords

T1-995 Technology (General)

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