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

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Abstract

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.
Original languageEnglish
Article number3480965
JournalJournal of Sensors
Volume2016
Number of pages7
ISSN1687-725X
DOIs
Publication statusPublished - 2016

Bibliographical note

Copyright © 2016 Vitaliy Zhurbenko.This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this

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title = "Optimal Value of Series Capacitors for Uniform Field Distribution in Transmission Line MRI Coils",
abstract = "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.",
author = "Vitaliy Zhurbenko",
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year = "2016",
doi = "10.1155/2016/3480965",
language = "English",
volume = "2016",
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Optimal Value of Series Capacitors for Uniform Field Distribution in Transmission Line MRI Coils. / Zhurbenko, Vitaliy.

In: Journal of Sensors, Vol. 2016, 3480965, 2016.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Optimal Value of Series Capacitors for Uniform Field Distribution in Transmission Line MRI Coils

AU - Zhurbenko, Vitaliy

N1 - Copyright © 2016 Vitaliy Zhurbenko.This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

U2 - 10.1155/2016/3480965

DO - 10.1155/2016/3480965

M3 - Journal article

VL - 2016

JO - Journal of Sensors

JF - Journal of Sensors

SN - 1687-725X

M1 - 3480965

ER -