闪烁
发光
制作
材料科学
热释光
陶瓷
产量(工程)
快速热处理
光电子学
光学
复合材料
物理
硅
病理
探测器
替代医学
医学
作者
Matthew G. Chapman,M.R. Marchewka,Steven A. Roberts,Jaclyn M. Schmitt,Colin D. McMillen,Courtney Kucera,Timothy A. DeVol,John Ballato,L.G. Jacobsohn
标识
DOI:10.1016/j.jlumin.2015.03.041
摘要
The effects of post-fabrication thermal processing in O2 flux on the luminescence and scintillation of a Y2O3:Tm transparent ceramic were investigated. The results showed that the strategy of post-fabrication processing can be beneficial to the performance of the ceramics, depending on the cumulative processing time. After the first hour of processing, about 40% enhancement in the luminescence output together with about 20% enhancement in the scintillation light yield were obtained. The enhancements were tentatively assigned to the incorporation of oxygen into vacancy sites. Longer cumulative processing times lead to the incorporation of oxygen as interstitials that is detrimental to scintillation light yield but not to luminescence output. This work also revealed that thermoluminescence measurements are a useful tool to predict scintillation light yield of Y2O3:Tm.
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