title: ÐÐ¿ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¸ Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ½ÑÐµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÑÐ¸Ð½ÑÐ¸Ð»Ð»ÑÑÐ¸Ð¾Ð½Ð½ÑÑ ÐºÐµÑÐ°Ð¼Ð¸Ðº, ÑÐ¸Ð½ÑÐµÐ·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð¸Ð· Ð½Ð°Ð½Ð¾- Ð¸ Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð¾ÐºÑÐ¸Ð´Ð° ÑÐ¸Ð½ÐºÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Optical and luminescent characteristics of scintillation ceramics synthesized from nano- and micropowders of zinc oxide
Creators: name: Ð¡ÑÑÐ»ÑÐ½Ð¸ÐºÐ¾Ð², ÐÐ½Ð´ÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÑÑÐ¸Ð½ÑÐ¸Ð»Ð»ÑÑÐ¾ÑÑ
Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
ÐºÐµÑÐ°Ð¼Ð¸ÐºÐ°
ZnO
ZnO(Ga)
Ð¿ÑÐ¸Ð¼ÐµÑÐ¸
ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ñ
ÑÐ¿ÐµÐºÑÑÑ
Ð¿ÑÐ¾Ð¿ÑÑÐºÐ°Ð½Ð¸Ðµ
Ð½Ð°Ð½Ð¾Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
Ð¼Ð¸ÐºÑÐ¾Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
scintillators
powders
ceramics
impurities
x-ray luminescence
spectra
transmission
nanopowders
micropowders

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description: The theme of the final qualification work: âOptical and luminescent characteristics of scintillation ceramics synthesized from nano- and micropowders of zinc oxideâ. This work is devoted to the study of the influence of uncontrolled impurities and the pressing conditions of ceramics on the optical and luminescent characteristics, as well as the search for correlations between the characteristics of ceramics and initial powders. The research set the following goals: 1. A study of the literature on physical processes in scintillators and scintillation ceramics based on zinc oxide. 2. Conducting experiments to study the scintillation characteristics of powders and ceramics. 3. Determination of the influence of trace impurities of nitrogen and carbon on the luminescent and optical characteristics. 4. Search for correlation between the characteristics of powders and ceramics obtained from them. 5. Study of the influence of pressing conditions of ceramics on the characteristics of scintillators. The work was carried out at the Department of Experimental Physics at Peter the Great St. Petersburg Polytechnic University, in the laboratory of scintillator physics. Measurements were taken showing the effect of uncontrolled impurities of nitrogen and carbon on the scintillation and optical characteristics of the samples. Based on the data obtained, conclusions were drawn about the correlation of the characteristics of powders and ceramics, and about the influence of pressing conditions on the scintillation and optical characteristics of pure and doped zinc oxide ceramics. As a result, it was concluded that the presence of an uncontrolled impurity of carbon in the samples does not significantly affect the optical and luminescent characteristics of scintillators, while an uncontrolled admixture of nitrogen leads to the appearance of an absorption band in the complete transmission spectra of ceramics and reflection of powders. Based on the work, recommendations are made on the preffered use of acetates in the precipitation of powders that leave uncontrolled impurities of carbon other than nitrates that leave uncontrolled impurities of nitrogen.