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Abstract #1467

Investigation Non-Magnetic Amplifiers Applied in an MRI System

Xing Yang1, Xu Chu2, Tingting Song2, Thomas K Foo3, Desmond Teck Beng Yeo3

1GE Global Research Center , Shanghai, China; 2GE Global Research Center, Shanghai, China; 3GE Global Research Center, Niskayuna, NY, United States

Power loss saving and cost reduction can be achieved by placing the RF amplifiers near the magnet directly. This will requires that the amplifiers are compatible within a high magnetic field environment. In this study, a 1 kW (peak power) non-magnetic amplifier module was designed and constructed. The impact of the B0 field on the non-magnetic amplifier and the effect of non-magnetic amplifier on the performance of the system were investigated. The experimental results indicated that, at 3T, the magnetic field had no notable impact on the MOSFET behavior. Similarly, the non-magnetic amplifier had no appreciable impact on image quality.