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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Magn Reson Med. 2010 Nov;64(5):1432–1439. doi: 10.1002/mrm.22512

Figure 1.

Figure 1

Examples of RF power amplifier-induced envelope distortion. The current measured in a coil driven by a 300 W amplifier both trails and overshoots the nominal waveform at the step.