Coil Ringdown Suppression by Broadband Forward Compensation
David Otto Brunner 1 and Klaas Paul Pruessmann 1
Institute for Biomedical Engineering,
University and ETH Zurich, Zurich, Switzerland
Coil ringdown due to the high Q resonance of NMR
detectors limits the speed at which the system can
switch from high power transmission to sensitive signal
acquisition and is a consequence of the narrowband
behaviour of the coil. We present an analytic broadband
pulse design approach to shorten the ringdown by
precompensating the Q of the coil with no excess peak
power requirements, no additional SAR deposition and no
changes to the existing RF coil hardware.
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