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Optical characteristics of La3Ga5,5Ta0,5 O14 and Ca3TaGa3Si2O14 crystals under electron and proton irradiationтезисы доклада Тезисы
- Авторы: Evgeniia Zabelina, Nina Kozlova, Oleg Buzanov, Anna Kozlova, Petr Lagov, Yuri Pavlov, Valeriy Stolbunov
- Сборник: BOOK OF ABSTRACTS. International Conference on Radiation Applications In Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences (RAP 2019),16–19.09.2019, Belgrade, Serbia
- Редакторы: Jakšić Aleksandar, Karamarković Jugoslav
- Серия: Conference RAP
- Тезисы
- Год издания: 2019
- Место издания: Sievert Association (Niš, Serbia)
- Первая страница: 59
- Последняя страница: 59
- Аннотация: Here, we present the results of our study of LGT and CTGS optical properties under electron and proton irradiations. All investigated samples were cut from crystals grown in JSC “Fomos-Materials” Co. using Czochralski method in iridium crucibles. Electron irradiation was performed at the Center of Physical Measurements Investigations of IPCE RAS using the linear accelerator (energy 6 MeV, flux 4·1012 cm–2·s–1, fluences up to 1.2∙1016 cm-2). Proton irradiation was performed on linear accelerator I-2 at the Center of Collective Use “Kamiks” of ITEP (energy 20 MeV, flux 1·1011 cm–2·s–1, fluence 1·1014 cm–2). Optical properties of samples were measured using UV-Vis-NIR spectrophotometer “Cary-5000” (Agilent Technologies) at non-polarized light taking into account the dichroism (with sample rotation by 90° around the light direction). After irradiation, all samples changed color, become more colored with a grayish tint. Irradiation both with protons and electrons leads to increase of absorption in all investigated wave-length region. The most significant effects are observed in the region of (250-450) nm. The greatest increase in absorption in the region of (250-500) nm is observed after the electron irradiation fluence of 4·1015 cm–2. The subsequent increase of fluence didn’t lead to the further increase of absorption.
- Добавил в систему: Павлов Юрий Сергеевич