250 MHz Rapid Scan Cross Loop Resonator

Authors

Laura A. Buchanan, University of Denver
Lukas B. Woodcock, University of Denver
George A. Rinard, University of DenverFollow
Richard W. Quine, University of DenverFollow
Yilin Shi, University of Denver
Sandra S. Eaton, University of DenverFollow
Gareth R. Eaton, University of DenverFollow

Publication Date

10-3-2018

Document Type

Article

Organizational Units

College of Natual Science and Mathematics, Chemistry and Biochemistry

Keywords

Electron paramagnetic resonance, crossed-loop resonator

Abstract

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.

Publication Statement

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Recommended Citation

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.