Abstract #1817
On-coil Power Monitor with a High Directivity Coupler
Sung-Min Sohn 1 , Anand Gopinath 2 , and J. Thomas Vaughan 1,2
1
Center for Magnetic Resonance Research,
University of Minnesota, Minneapolis, Minnesota, United
States,
2
Department
of Electrical and Computer Science Engineering,
University of Minnesota, Minneapolis, Minnesota, United
States
To achieve accurate and stable RF power measurements in
MR systems, a high directivity coupler is proposed and
compared to a conventional coupler, and a compact
MR-compatible on-coil power monitor with the high
directivity coupler was built and tested both on the
test bench and 7T MRI (Siemens Magnetom, Erlangen, DE).
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