BaBrI:Sm2+闪烁晶体的发光特性

Luminescence and Laser Physics: XVII International Conference on Luminescence and Laser Physics – LLPh 2019 Pub Date : 2021-07-27 DOI:10.1063/5.0061794

D. Sofich, R. Shendrik, A. Rusakov, A. Shalaev, A. Myasnikova

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引用次数: 0

摘要

研究了二价钐活化的BaBrI晶体的光谱。由于Sm2+离子的4f6-4f6和4f55d1-4f6跃迁，样品在光谱的红色区域显示出明亮的发光。在7-300 K范围内，发光表现出强烈的温度依赖性。在低温下，观察到从5D0和5D1态到4f6-46f的奇偶禁止转变相关的发光。检测了BaBrI:Sm2+在紫外光照射下晶体的着色和长余辉发光。

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Luminescent properties of BaBrI:Sm2+ scintillation crystals

The optical spectra of BaBrI crystals activated by divalent samarium were studied. The samples exhibit bright luminescence in the red region of spectra due to 4f6–4f6 and 4f55d1–4f6 transitions of Sm2+ ions. Luminescence exhibits strong temperature dependence in the range 7–300 K. At low temperatures, luminescence associated with parity-forbidden 4f6–46f transitions from 5D0 and 5D1 states is observed. Coloring of the crystals after irradiation by ultraviolet light and long afterglow luminescence of BaBrI:Sm2+ were detected.

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来源期刊

Luminescence and Laser Physics: XVII International Conference on Luminescence and Laser Physics – LLPh 2019

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