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Information × Registration Number 0220U100769, 0118U002317 , R & D reports Title Development of new dielectric UHF materials for resonators, which will increase the sensitivity of EPR devices, and the creation on their basis mini-EPR analyzer for rapid analysis in medicine and monitoring of the environment. Section 2. Development of a mini-EPR analyzer for express analysis in medicine and environmental monitoring on the basis of UHF resonators with optimized geometry popup.stage_title Head Yukhymchuk Volodymyr O., Доктор фізико-математичних наук Registration Date 27-01-2020 Organization V. Lashkaryov Institute of semiconductor physics popup.description2 The optimal shapes and size of the dielectric insert in the microwave cavity of the standard EPR X-band spectrometer have been performed. For this purpose, the following requirements were taken into account: 1) the reliability of the maximum enhancement of magnetic field in the minimum possible geometric region sufficient to accommodate the samples; 2) the shift of resonance frequency must be within the range of possible restructuring of the microwave generator. It is found that when used for the manufacture of dielectric insert pre-researched ceramics based on barium titanate (BaTi4O9 + 8.5% ZnO) with dielectric constant 36, a cylindrical shape is optimal with the following geometric sizes: outer diameter 5 mm, inner diameter 2 mm, height 2-4 mm. Experimental verification of the enhancement of the EPR signal from the test sample (MnCl2 powder) using dielectric insert made of such ceramics and the geometric sizes shown that the signal intensity is в 6.5 times larger with the unchanged parameters of the EPR spectrometer. The obtained results confirm the correctness as the main idea of the project about the possibility of such enhancement with the help of dielectric insert, which was made by the V.I. Vernadsky Institute of General and Inorganic Chemistry NAS of Ukraine, as well as calculations of its geometrical parameters. Product Description popup.authors Vorona Ihor P. Golovina Iryna S. Lemishko Sergiy V. Yukhymchuk Volodymyr O. popup.nrat_date 2020-04-02 Close
R & D report
Development of new dielectric UHF materials for resonators, which will increase the sensitivity of EPR devices, and the creation on their basis mini-EPR analyzer for rapid analysis in medicine and monitoring of the environment. Section 2. Development of a mini-EPR analyzer for express analysis in medicine and environmental monitoring on the basis of UHF resonators with optimized geometry
Head: Yukhymchuk Volodymyr O.. Development of new dielectric UHF materials for resonators, which will increase the sensitivity of EPR devices, and the creation on their basis mini-EPR analyzer for rapid analysis in medicine and monitoring of the environment. Section 2. Development of a mini-EPR analyzer for express analysis in medicine and environmental monitoring on the basis of UHF resonators with optimized geometry. (popup.stage: ). V. Lashkaryov Institute of semiconductor physics. № 0220U100769
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Updated: 2026-03-21


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