An Optimized L-Band Ceramic Resonator for EPR Imaging of Biological Samples

M. Chzhan; M. Shteynbuk; P. Kuppusamy; J. L. Zweier

doi:10.1006/jmra.1993.1246

An Optimized L-Band Ceramic Resonator for EPR Imaging of Biological Samples

M. Chzhan, M. Shteynbuk, P. Kuppusamy, J. L. Zweier

School of Medicine

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

The design, engineering parameters, and EPR performance of ceramic re-entrant resonators optimized for L-band EPR imaging of biological samples are reported. Modified equivalent schematics and resonant frequency expressions for the three-loop two-gap re-entrant resonator design are presented. Fabrication techniques and test data for two resonators with a resonant frequency of approximately 1.2 GHz are provided. The unique properties of ceramics enabled the development of a highly stable and highly sensitive re-entrant resonator design of minimum thickness optimally suited for EPR imaging experiments. This resonator yields a signal-to-noise ratio at L band as high as that of X-band cavities for a given-concentration aqueous radical solution of unlimited volume.

Original language	English (US)
Pages (from-to)	49-53
Number of pages	5
Journal	Journal of Magnetic Resonance, Series A
Volume	105
Issue number	1
DOIs	https://doi.org/10.1006/jmra.1993.1246
State	Published - Oct 15 1993

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General Engineering

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AB - The design, engineering parameters, and EPR performance of ceramic re-entrant resonators optimized for L-band EPR imaging of biological samples are reported. Modified equivalent schematics and resonant frequency expressions for the three-loop two-gap re-entrant resonator design are presented. Fabrication techniques and test data for two resonators with a resonant frequency of approximately 1.2 GHz are provided. The unique properties of ceramics enabled the development of a highly stable and highly sensitive re-entrant resonator design of minimum thickness optimally suited for EPR imaging experiments. This resonator yields a signal-to-noise ratio at L band as high as that of X-band cavities for a given-concentration aqueous radical solution of unlimited volume.

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An Optimized L-Band Ceramic Resonator for EPR Imaging of Biological Samples

Abstract

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