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https://elib.bsu.by/handle/123456789/340549| Title: | Термический отжиг галогенидов щелочноземельных металлов, облученных быстрыми ионами |
| Other Titles: | Thermal Annealing of Alkaline-Earth Halides Irradiated with Swift Ions / Sorokin Michael, Kenbaev Daurzhan, El-Said Ayman S., Izerrouken Mahmoud, Dauletbekova Alma, Akilbekov Abdirash, Ahmad Ishaq |
| Authors: | Сорокин, М. В. Кенбаев, Д. Х. Эль-Саид, А. Ш. Изеррукен, М. Даулетбекова, А. К. Акилбеков, А. Т. Ахмад, И. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
| Issue Date: | 2025 |
| Publisher: | Минск : БГУ |
| Citation: | Взаимодействие излучений с твердым телом : материалы 16-й Междунар. конф., Минск, Беларусь, 22-25 сент. 2025 г. / Белорус. гос. ун-т ; редкол.: В. В. Углов (гл. ред.) [и др.]. – Минск : БГУ, 2025. – С. 181-183. |
| Abstract: | На примере фторида бария, облученного быстрыми ионами 132Xe, выявлены существенные отличия кинетики образования и отжига центров окраски от щелочно-галоидных кристаллов. Предложены механизмы и определены энергии активации отжига F2 пика в двух температурных интервалах |
| Abstract (in another language): | Although alkaline-earth halides share many properties with the alkali-halide crystals, two features are important for their response on the irradiation with swift ions. Firstly, the mechanism of defect creation during decay of the electronic excitations is much less efficient. Secondly, the single F centers are much more mobile in many alkaline-earth halides remain mobile below room temperature, so the simplest intrinsic color center in such crystals become F2. BaF2 crystals were irradiated with energetic xenon ions at room temperature and then stepwise annealed up to 825 K. Significant decrease of the F2 peak was observed in the narrow temperature region of 400 - 450 K. We believe the decrease is originated by decay of interstitial centers, of the broad absorption band at ~6.5 eV. This explanation is supported by the simultaneous increase of the peaks in 9-10 eV region, those presumably corresponds to anion interstitial aggregates. The activation energies of the F2 peak decreases are estimated in two temperature intervals |
| Description: | Секция 2. Радиационные эффекты в твердом теле = Section 2. Radiation Effects in Solids |
| URI: | https://elib.bsu.by/handle/123456789/340549 |
| ISSN: | 2663-9939 (print) 2706-9060 (online) |
| Licence: | info:eu-repo/semantics/openAccess |
| Appears in Collections: | 2025. Взаимодействие излучений с твердым телом |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 181-183.pdf | 124,51 kB | Adobe PDF | View/Open |
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