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. Author manuscript; available in PMC: 2012 Feb 20.
Published in final edited form as: IEEE Trans Med Imaging. 2011 Sep 26;31(2):370–379. doi: 10.1109/TMI.2011.2169681

Fig. 6.

Fig. 6

The Medusa RF Module employs direct-conversion methods with high-speed DACs and ADCs to synthesize and acquire RF with relatively few components. Once in the digital domain, the logic core CPLD and RAM perform timing and buffering of the waveforms until they can be serviced by the Medusa Controller. Gating outputs are provided to control RF amplifiers and coil bias.