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Abstract #0710

MR Experiments Using a Commercially-Available Software-Defined Radio

Christopher J Hasselwander 1,2 , William A Grissom 1,2 , and Zhipeng Cao 1,2

1 Vanderbilt University Institute of Imaging Science, Nashville, TN, United States, 2 Biomedical Engineering, Vanderbilt University, Nashville, TN, United States

Conventional commercial MR spectrometers are often limited in configurability, portability, scalability and cost. Software-defined radios (SDRs) offer a low-cost and highly-flexible alternative, offering high-bandwidth direct RF signal synthesis and digitization with high bit depth. In this work we describe the use of a commercially-available SDR in educational NMR experiments, and in the generation of frequency-swept RF pulses for RF spatial encoding using the Bloch-Siegert shift. The SDR was shown to enable rapid development of simple NMR experiments, and to produce higher-quality frequency-swept pulses than a conventional spectrometer.

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