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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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