Abstract #4802
A field probe transceiver system with controllable RF coupling and decoupling
Ying-Hua Chu 1 , Yi-Cheng Hsu 1 , Shang-Yueh Tsai 2 , and Fa-Hsuan Lin 1,3
1
Institute of Biomedical Engineering,
National Taiwan University, Taipei, Taiwan,
2
Institute
of Applied Physics, National Chengchi University,
Taipei, Taiwan,
3
Department of Biomedical
Engineering and Computational Science, Aalto University,
Espoo, Finland
We propose a new approach to improve the isolation of
NMR signals originating from the field probe and from
the imaging object without using an independent
transceiver. We use an RF coil (Tx loop) to pick up the
RF energy during RF transmission to the field probe
inside an RF shield. During RF reception, the Tx loop is
detuned such that the NMR signal from the imaging object
will not be picked up by the Tx loop and the field probe
can remain isolated inside the RF shielding. This design
is empirically demonstrated by an one-channel prototype
system.
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