This abstract presents two preamplifier designs for 13C imaging optimized either for single or array coil usage. For single coil usage the preamplifier is designed to minimize noise yielding a noise figure of 0.25 dB. For array coils coupling between elements is a problem when the input impedance of the preamplifier is high. Hence the main contribution of this work is a low resistance, inductive input impedance preamplifier yielding better decoupling for array coils, while maintaining acceptable gain (20 dB) and noise figure (0.75 dB).
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