The influence of BaF₂ on scintillation properties of PbWO₄ crystal
PbWO₄ crystals doped with BaF₂ was grown up by using modified temperature-grads technique. The crystal defects were investigated by chemical etching. The XRD of the sample has shown that the peaks were at normal sites, but the lattice parameters was slightly larger than that of pure PbWO₄ crystal. T...
Збережено в:
| Дата: | 2007 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2007
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| Назва видання: | Functional Materials |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/140211 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The influence of BaF₂ on scintillation properties of PbWO₄ crystal / Youbao Wan, Jianxing Zhang, Rurong Wu, Sanfa Xing, Hui Yang // Functional Materials. — 2007. — Т. 14, № 4. — С. 446-453. — Бібліогр.: 10 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | PbWO₄ crystals doped with BaF₂ was grown up by using modified temperature-grads technique. The crystal defects were investigated by chemical etching. The XRD of the sample has shown that the peaks were at normal sites, but the lattice parameters was slightly larger than that of pure PbWO₄ crystal. The transmittance spectrum along c axis of the PbWO₄:BaF₂ crystal has evidenced a higher transmittance than that of pure PbWO4 crystal. The luminescence intensity of the 400-450 nm peak in X-ray excited luminescence spectrum of the PbWO₄:BaF₂ crystal is increased significantly, about twice than that of pure PbWO₄ crystal. The light yield of BaF₂ doped PbWO₄ crystal was enhanced up to 2.5 times. These results show that BaF₂ doping of PbWO₄ can improve scintillation properties of the crystal for medium-energy particle detection. |
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