mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-21201mrisel-13Research ArticleСтатьиMultipurpose Portable Q-Band BridgeZverevD. G.

Kremlevskaya 18, Kazan 420008

LukinS. N.

Vasylkivska str. 42, Kyiv 03022

RodionovA. A.

Kremlevskaya 18, Kazan 420008

ShurtakovaD. V.

Kremlevskaya 18, Kazan 420008

GafurovM. R.

Kremlevskaya 18, Kazan 420008

marat.gafurov@kpfu.ruKazan Federal UniversityRussian FederationR.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology NAS of UkraineUkraine20211212202323221201(6 pp.)Copyright © Zverev D.G., Lukin S.N., Rodionov A.A., Shurtakova D.V., Gafurov M.R., 20232023Zverev D.G., Lukin S.N., Rodionov A.A., Shurtakova D.V., Gafurov M.R.Zverev D.G., Lukin S.N., Rodionov A.A., Shurtakova D.V., Gafurov M.R.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/13

The paper describes the design, implementation, and technical characteristics of a portable Q-band microwave (mw) bridge based on the Gunn diode with the potential use for electron paramagnetic resonance (EPR) and dynamic nuclear polarization (DNP) spectroscopies. The mw frequency can be electronically adjusted in the range of 36-38 GHz with the maximal mw output of 120 mW and electronic attenuation of 0-60 dB. The value of the mw frequency can be stabilized and changed via automatic frequency control for direct and alternating current. A self-written Matlab-based program allows tuning and operating the bridge through the RS-485 interface. Examples of the EPR spectra implemented into the magnetic system of the Bruker ESP300 commercial spectrometer are shown

microwavespectrometerelectron paramagnetic resonancedynamic nuclear polarizationThe work is financially supported by Russian Science Foundation (grant #19–12–00332)ReferencesVakhin A. V., Khelkhal M. A., Tajik A., Gafurov M. R., Morozov O. G., Nasybullin A. R., Karandashov S. A., Ponomarev A. A., Krapivnitskaia T. O., Glyavin M. Y., et al., Processes 9, 420 (2021).Vakhin A. V., Khelkhal M. A., Tajik A., Gafurov M. R., Morozov O. G., Nasybullin A. R., Karandashov S. A., Ponomarev A. A., Krapivnitskaia T. O., Glyavin M. Y., et al., Processes 9, 420 (2021).Burlaka A., Selyuk M., Gafurov M., Lukin S., Potaskalova V., Sidorik E., International Journal of Radiation Biology 90, 357 (2014).Burlaka A., Selyuk M., Gafurov M., Lukin S., Potaskalova V., Sidorik E., International Journal of Radiation Biology 90, 357 (2014).Sivakumar P., Krishna S., Hari S., Vij R. K., Environmental Technology and Innovation 20, 101100 (2020).Sivakumar P., Krishna S., Hari S., Vij R. K., Environmental Technology and Innovation 20, 101100 (2020).Gulisano F., Gallego J., Construction and Building Materials 278, 121993 (2021).Gulisano F., Gallego J., Construction and Building Materials 278, 121993 (2021).Gizatullin B., Gafurov M., Murzakhanov F., Vakhin A., Mattea C., Stapf S., Langmuir 37, 6783 (2021).Gizatullin B., Gafurov M., Murzakhanov F., Vakhin A., Mattea C., Stapf S., Langmuir 37, 6783 (2021).Alexandrov A., Ivanov A., Archipov R., Gafurov M., Tagirov M., Magnetic Resonance in Solids. Electronic Journal 21, 19203 (2019).Alexandrov A., Ivanov A., Archipov R., Gafurov M., Tagirov M., Magnetic Resonance in Solids. Electronic Journal 21, 19203 (2019).Alexandrov A., Archipov R., Ivanov A., Gnezdilov O., Gafurov M., Skirda V., Applied Magnetic Resonance 45, 1275 (2014).Alexandrov A., Archipov R., Ivanov A., Gnezdilov O., Gafurov M., Skirda V., Applied Magnetic Resonance 45, 1275 (2014).Barthel J., Bachhuber K., Buchner R., Hetzenauer H., Chemical Physics Letters 165, 369 (1990).Barthel J., Bachhuber K., Buchner R., Hetzenauer H., Chemical Physics Letters 165, 369 (1990).M¨obius K., Savitsky A., Schnegg A., Plato M., Fuchs M., Physical Chemistry Chemical Physics 7, 19 (2005).M¨obius K., Savitsky A., Schnegg A., Plato M., Fuchs M., Physical Chemistry Chemical Physics 7, 19 (2005).Gafurov M., Ponomarev A., Mamin G., Rodionov A., Murzakhanov F., Arash T., Orlinskii S., Georesursy = Georesources 22, 2 (2020).Gafurov M., Ponomarev A., Mamin G., Rodionov A., Murzakhanov F., Arash T., Orlinskii S., Georesursy = Georesources 22, 2 (2020).Rau J. V., Fadeeva I. V., Fomin A. S., Barbaro K., Galvano E., Ryzhov A. P., Murzakhanov F., Gafurov M., Orlinskii S., Antoniac I., et al., ACS Biomaterials Science and Engineering 5, 6632 (2019).Rau J. V., Fadeeva I. V., Fomin A. S., Barbaro K., Galvano E., Ryzhov A. P., Murzakhanov F., Gafurov M., Orlinskii S., Antoniac I., et al., ACS Biomaterials Science and Engineering 5, 6632 (2019).Liu K., Gast P., Moussavi M., Norby S., Vahidi N., Walczak T., Wu M., Swartz H., Proceedings of the National Academy of Sciences 90, 5438 (1993).Liu K., Gast P., Moussavi M., Norby S., Vahidi N., Walczak T., Wu M., Swartz H., Proceedings of the National Academy of Sciences 90, 5438 (1993).Ilangovan G., Zweier J. L., Kuppusamy P., Journal of Physical Chemistry B 104, 9404 (2000)Ilangovan G., Zweier J. L., Kuppusamy P., Journal of Physical Chemistry B 104, 9404 (2000)

The authors declare that there are no conflicts of interest present.