250 MHz Rapid Scan Cross Loop Resonator
Electron paramagnetic resonance, crossed-loop resonator
College of Natual Science and Mathematics, Chemistry and Biochemistry
A 25 mm diameter 250 MHz crossed-loop resonator was designed for rapid scan electron paramagnetic resonance imaging. It has a saddle coil for the driven resonator and a fine wire, loop gap resonator for the sample resonator. There is good separation of E and B fields and high isolation between the two resonators, permitting a wide range of sample types to be measured. Applications to imaging of nitroxide, trityl, and LiPc samples illustrate the utility of the resonator. Using this resonator and a trityl sample the signal-to-noise of a rapid scan absorption spectrum is about 20 times higher than for a first-derivative CW spectrum.
Copyright held by author or publisher. User is responsible for all copyright compliance.
Buchanan, L. A., Woodcock, L. B., Rinard, G. A., Quine, R. W., Shi, Y., Eaton, S. S., & Eaton, G. R. (2018). 250 MHz Rapid Scan Cross Loop Resonator. Applied Magnetic Resonance, 50(1-3), 333-345. DOI: 10.1007/s00723-018-1078-y.