nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2025-2-103-109nuc-821Research ArticleСтатьиОПТИЧЕСКИЕ СВОЙСТВА МОНОКРИСТАЛЛОВ Y3Al5O12 (100) ОБЛУЧЕННЫХ ВЫСОКОЭНЕРГЕТИЧЕСКИМИ ИОНАМИ КСЕНОНАOPTICAL PROPERTIES OF Y3Al5O12 (100) SINGLE CRYSTALS IRRADIATED WITH HIGH-ENERGY XENON IONSДосмағамбетовЖ. Б.DosmagambetovZh. B.

 Астана 

Astana

zag7686@gmail.comАсылбаевР. Н.AssylbayevR. N.

Павлодар

Pavlodar

ruslanassylbay@yandex.kzКарипбаевЖ. Т.KaripbayevZh. T.

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Astana

zf1@mail.ruДжунисбековаД. А.JunisbekovaD. A.

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Astana

diana911115@gmail.comАкилбековА. Т.AkilbekovA. T.

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Astana

akilbekov_at@enu.kzДаулетбековаА. К.DauletbekovaA. K.

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Astana

alma_dauletbek@mail.ruЕргешбайГ. Б.YergeshbayG. B.

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Astana

yergeshbay.gulim@icloud.comСұлтанБ. Ғ.SultanB. G.

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Astana

beybaarystan@gmail.comЕвразийский национальный университет им. Л.Н. ГумилеваКазахстанL.N. Gumilyov Eurasian National UniversityKazakhstanПавлодарский педагогический университет им. Ә. МарғұланКазахстанMargulan UniversityKazakhstan20251407202502103109Copyright © Досмағамбетов Ж.Б., Асылбаев Р.Н., Карипбаев Ж.Т., Джунисбекова Д.А., Акилбеков А.Т., Даулетбекова А.К., Ергешбай Г.Б., Сұлтан Б.Ғ., 20252025Досмағамбетов Ж.Б., Асылбаев Р.Н., Карипбаев Ж.Т., Джунисбекова Д.А., Акилбеков А.Т., Даулетбекова А.К., Ергешбай Г.Б., Сұлтан Б.Ғ.Dosmagambetov Z.B., Assylbayev R.N., Karipbayev Z.T., Junisbekova D.A., Akilbekov A.T., Dauletbekova A.K., Yergeshbay G.B., Sultan B.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/821

YAG (Y3Al5O12) является одним из важных оптических материалов. Он широко используется в твердотельных лазерах, осветительных приборах в качестве преобразователя белого светодиода, а также в сцинтилляционной технике.

В настоящей работе монокристаллы YAG (100) облучались ионами Xe с энергией 230 МэВ до флюенсов 6·1010– 1013 ион/см2, что позволяет изучить поведение материала в полях жесткой радиации. Для анализа облученных кристаллов YAG использовались следующие методы исследования: спектроскопия оптического поглощения и спектроскопия комбинационного рассеяния. Анализ спектров поглощения показывает образование центров окраски в облученных образцах YAG. Концентрация различных типов точечных дефектов значительно увеличивается с ростом флюенса. Разностные спектры обнаруживают перекрывающиеся полосы в диапазоне 4,1–5,2 эВ, которые соответствуют различным конфигурациям F2-центров. С увеличением флюенса приповерхностный слой становится аморфным, и материал аморфизуется. Высокоэнергетические моды рамановских спектров начинают расширяться уже при флюенсе 1010 ион/см2. Учитывая высокую степень воздействия ионов Xe, можно утверждать, что начиная с флюенса 1012 ион/см2 все катион-анионные связи практически разрушаются.

YAG (Y3Al5O12) is one of the important optical materials. It is widely used in solid-state lasers, lighting devices as a white LED converter, and in scintillation technology.

In this work, YAG (100) single crystals were irradiated with 230 MeV Xe ions to fluences of 6·1010–1013 ion/cm2, which allows us to study the behavior of the material in hard radiation fields. The following research methods were used to analyze the irradiated YAG crystals: optical absorption spectroscopy and Raman spectroscopy.

Analysis of the absorption spectra shows the formation of color centers in the irradiated YAG samples. The concentration of various types of point defects increases significantly with increasing fluence. The difference spectra reveal overlapping bands in the range of 4.1–5.2 eV, which correspond to different configurations of F2 centers. With increasing fluence, the surface layer becomes amorphous, and the material is amorphized. High-energy modes of Raman spectra begin to expand already at a fluence of 1010 ion/cm2. Considering the high degree of influence of Xe ions, it can be stated that starting from a fluence of 1012 ion/cm2, all cation-anion bonds are practically destroyed.

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