Q-Band Loop-Gap Resonator for EPR Applications with Broadband-Shaped Pulses
- Авторы: Prisner T.1, Denysenkov V.1, van Os P.1
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Учреждения:
- Institute of Physical and Theoretical Chemistry, Center of Biomolecular Magnetic Resonance, Goethe University Frankfurt
- Выпуск: Том 48, № 11-12 (2017)
- Страницы: 1263-1272
- Раздел: Original Paper
- URL: https://journals.rcsi.science/0937-9347/article/view/247894
- DOI: https://doi.org/10.1007/s00723-017-0930-9
- ID: 247894
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Аннотация
Recently, Q-band-pulsed electron paramagnetic resonance spectroscopy has strongly advanced its performance by the introduction of high-power microwave amplifiers and the use of shaped pulses. For such applications, the resonator Q value has to be low enough to achieve sufficient bandwidth for short microwave pulses and to reduce the ring-down time after the pulses. However, a low Q value reduces the detection sensitivity as well as the conversion efficiency of the microwave input power to the magnetic field strength at the sample position. Therefore, the resonator Q value has to be optimized for a given microwave input power and specific application. We designed a three-loop/two-gap resonator using CST Microwave Studio for such applications, and tested its performance in comparison with a standard Bruker D2 Q-band microwave resonator by accomplishing broadband SIFTER experiments on a nitroxide model compound.
Об авторах
Thomas Prisner
Institute of Physical and Theoretical Chemistry, Center of Biomolecular Magnetic Resonance, Goethe University Frankfurt
Автор, ответственный за переписку.
Email: prisner@chemie.uni-frankfurt.de
ORCID iD: 0000-0003-2850-9573
Германия, Frankfurt am Main
Vasyl Denysenkov
Institute of Physical and Theoretical Chemistry, Center of Biomolecular Magnetic Resonance, Goethe University Frankfurt
Email: prisner@chemie.uni-frankfurt.de
Германия, Frankfurt am Main
Philipp van Os
Institute of Physical and Theoretical Chemistry, Center of Biomolecular Magnetic Resonance, Goethe University Frankfurt
Email: prisner@chemie.uni-frankfurt.de
Германия, Frankfurt am Main