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Abstract #4407

Evaluation of RF Shielding Effectiveness by Method of Moments

Yihe Hua1, Teck Beng Desmond Yeo1, Thomas Foo1, Dominic Graziani1, Justin Ricci1, Joseph Piel1, and Keith Park1

1GE Global Research, Niskayuna, NY, United States

In MRI system, RF shielding is designed to isolate the RF coil from outside conductive objects. Usually simulation is done with only RF coil and RF shielding being included and the impact from outside objects could be qualitatively estimated by limiting the fringe field of the RF coil to a certain level. In this work, the impact from gradient coil to the RF coil can be examined quantitatively rather than qualitatively via the S-parameters of the RF coil being studied with Method of Moments. which is very useful for the RF shielding design.

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