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An X-Band Crossed-Loop EPR Resonator

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Abstract

A copper X-band (9.22 GHz) cross-loop resonator has been constructed for use with 4 mm sample tubes. The Q for the two resonators is 380 and 350, respectively. The resonator efficiency is about 1 G per square root of watt. Operation has been demonstrated with measurement of T 1 by saturation recovery for samples of coal and an immobilized nitroxide.

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Acknowledgements

This work was partially supported by NIH NCI AIP Grant CA177744 and NSF Grant CHE-1117992.

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Authors and Affiliations

  1. Department of Chemistry and Biochemistry and Center for EPR Imaging In Vivo Physiology, University of Denver, 2101 E. Wesley Ave., Denver, CO, 80208, USA

    Joseph McPeak, Laura Buchanan, Sandra S. Eaton & Gareth R. Eaton

  2. School of Engineering and Computer Science and Center for EPR Imaging In Vivo Physiology, University of Denver, Denver, CO, 80208, USA

    George A. Rinard & Richard W. Quine

Authors
  1. George A. Rinard
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  2. Richard W. Quine
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  3. Joseph McPeak
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  4. Laura Buchanan
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  5. Sandra S. Eaton
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  6. Gareth R. Eaton
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Correspondence to Gareth R. Eaton.

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Rinard, G.A., Quine, R.W., McPeak, J. et al. An X-Band Crossed-Loop EPR Resonator. Appl Magn Reson 48, 1219–1226 (2017). https://doi.org/10.1007/s00723-017-0945-2

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  • DOI: https://doi.org/10.1007/s00723-017-0945-2

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