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Abstract #2135

Design and construction of a triple-tuned RF probe for 23Na/31P/1H using traps

Arthur W. Magill1, Chang-Hoon Choi1, Yonghyun Ha1, and N. Jon Shah1,2

1Institute of Neuroscience and Medicine - 4, Forschungszentrum Juelich GmbH, Juelich, Germany, 2Department of Neurology, JARA, RWTH Aachen University, Aachen, Germany

Traps may be used to dual-tune an RF probe, either by splitting the resonance of a single tuned circuit, or by blocking coupling at the higher frequency when using a pair of resonant circuits. This work combines both methods to construct a triple-tuned probe consisting of a nested pair of loops. The inner loop incorporates two traps, one to prevent coupling to the outer loop, which is tuned to 1H, and a second to simultaneously tune the loop to 23Na and 31P. The probe is designed for use at 4T, with resonances at 45MHz (23Na), 69MHz (31P) and 170MHz (1H).

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