Journal article
DEVELOPMENT AND CHARACTERIZATION OF CERAMIC INSERTS USED IN METALLIC RESONATORS OF EPR SPECTROMETERS TO INCREASE THEIR SENSITIVITY
Ukrainian journal of physics (Kiev), v 66(6), pp 497-502
01 Jan 2021
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Abstract
Cylindrical dielectric inserts for a standard EPR spectrometer with a metallic resonator have been developed on the basis of doped barium tetratitanate ceramics (BaTi4O9 + 8.5% ZnO) with the dielectric constant epsilon = 36 and low dielectric losses (tan delta approximate to 1.887x 10(-4)) in a frequency interval of 9-10 GHz. It was found that the application of such dielectric inserts allows the EPR signal to be amplified owing to the redistribution of the microwave field in a standard rectangular TE(102)( )resonator. The amplification is observed for both unsaturated samples and samples characterized by the saturation of the EPR signals. A gain factor of 9 was obtained for unsaturated test MnCl2 samples, and 1.5 for saturated test MgO: Mn ones.
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Details
- Title
- DEVELOPMENT AND CHARACTERIZATION OF CERAMIC INSERTS USED IN METALLIC RESONATORS OF EPR SPECTROMETERS TO INCREASE THEIR SENSITIVITY
- Creators
- S. Lemishko - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineI. P. Vorona - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineI. S. Golovina - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineV. O. Yukhymchuk - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineS. M. Okulov - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineV. V. Nosenko - Nat Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, 41 Nauka Ave, UA-03028 Kiev, UkraineS. O. Solopan - Nat Acad Sci Ukraine, VI Vernadsky Inst Gen & Inorgan Chem, 32-34 Academician Palladin Ave, UA-08142 Kiev, UkraineA. G. Belous - Nat Acad Sci Ukraine, VI Vernadsky Inst Gen & Inorgan Chem, 32-34 Academician Palladin Ave, UA-08142 Kiev, Ukraine
- Publication Details
- Ukrainian journal of physics (Kiev), v 66(6), pp 497-502
- Publisher
- Bogolyubov Inst Theoretical Physics Natl Acad Sci Ukraine
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000670205500005
- Scopus ID
- 2-s2.0-85110789148
- Other Identifier
- 991019302290804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Multidisciplinary