Tabletop 700 MHz electron paramagnetic resonance imaging spectrometer

Low frequency electron paramagnetic resonance imaging is a powerful tool to noninvasively measure the physiological status of tumors. Here, we report on the design and functionality of a rapid scan and pulse tabletop imaging spectrometer based around an arbitrary waveform generator and 25 mm cross-loop resonator operating at 700 MHz. Two and four-dimensional rapid scan spectral-spatial images are presented. This tabletop imager is a prototype for future preclinical imagers.