ArticleCell biochemistry and biophysics2017
Broadband W-band Rapid Frequency Sweep Considerations for Fourier Transform EPR.
Article in Cell biochemistry and biophysics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Segmented-overlap Fourier filtering and averaging (SOFFA) approach to improve concentration sensitivity of magnetic resonance spectra.Magnetic resonance (Gottingen, Germany) · 2026Article
- Dispersion EPR: Considerations for Low-Frequency Experiments.Applied magnetic resonance · 2022Article
- Oxygen Transport Parameter in Plasma Membrane of Eye Lens Fiber Cells by Saturation Recovery EPR.Applied magnetic resonance · 2021Article
- Uniform Field Resonators for EPR Spectroscopy: A Review.Cell biochemistry and biophysics · 2019Review
- Autobiography of James S. Hyde.Applied magnetic resonance · 2017Article
- Uniform field loop-gap resonator and rectangular TEJournal of magnetic resonance (San Diego, Calif. : 1997) · 2017Article
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Authors and funding
8 authors.
Funding
Abstract
A multi-arm W-band (94 GHz) electron paramagnetic resonance spectrometer that incorporates a loop-gap resonator with high bandwidth is described. A goal of the instrumental development is detection of free induction decay following rapid sweep of the microwave frequency across the spectrum of a nitroxide radical at physiological temperature, which is expected to lead to a capability for Fourier transform electron paramagnetic resonance. Progress toward this goal is a theme of the paper. Because of the low Q-value of the loop-gap resonator, it was found necessary to develop a new type of automatic frequency control, which is described in an appendix. Path-length equalization, which is accomplished at the intermediate frequency of 59 GHz, is analyzed. A directional coupler is favored for separation of incident and reflected power between the bridge and the loop-gap resonator. Microwave leakage of this coupler is analyzed. An oversize waveguide with hyperbolic-cosine tapers couples the bridge to the loop-gap resonator, which results in reduced microwave power and signal loss. Benchmark sensitivity data are provided. The most extensive application of the instrument to date has been the measurement of T
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