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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