We propose a double-coil setup for broad-range heteronuclear MRI. The system designed for an 11.7T scanner comprises two independent coils, one of them tuned to 1H frequency to perform anatomical imaging, and another one, wire-array coil, tuned to the X-nucleus (including 2H, 11B, 13C, 23Na, 7Li and 31P) frequency. In order to tune the X-coil over such a wide range, both structural capacitance and inductance of the coil are made variable; narrow range tuning of the 1H coil is achieved via conventional tuning-matching circuit. The design principle and setup tunability are investigated in simulations and experimentally.
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