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.
Keywords