研究了空气气氛下制备的掺Ce3+磷酸盐闪烁玻璃.XPS分析结果显示,玻璃网络结构中的铈离子以低化合价(三价)形式存在.分别测试了含Ce3+及不含Ce3+玻璃样品在辐射前及经特定剂量辐射后的紫外可见透过光谱.实验结果表明,含Ce3+玻璃在大于390nm波长处的辐射诱导吸收带消失或明显减弱.通过计算样品的辐射诱导吸收系数μ发现Ce3+离子的引入有效提高了磷酸盐闪烁玻璃的抗辐射能力.
参考文献
[1] | Pavan P;Zanella G;Zannoni R;Polato R .[J].Nuclear Instruments and Methods B,1991,61:487. |
[2] | Baccaro S.;Fabeni P.;Martini M.;Mares JA.;Meinardi F. Nikl M.;Nitsch K.;Pazzi GP.;Polato P.;Susini C.;Vedda A.;Zanella G. Zannoni R.;Dall'Igna R. .Ce3+ or Tb3+-doped phosphate and silicate scintillating glasses[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2000(0):673-675. |
[3] | Nikl M.;Mihokova E.;Solovieva N.;Mares JA.;Fabeni P.;Pazzi GP.;Martini M.;Vedda A.;Baccaro S.;Nitsch K. .Efficient radioluminescence of the Ce3+-doped Na-Gd phosphate glasses[J].Applied physics letters,2000(14):2159-2161. |
[4] | Bettinelli M;Ingletto G;Polato P .[J].Physics and Chemistry of Glasses,1996,37(01):4. |
[5] | Duffy J A;Ingram M D .[J].Journal of Non-Crystalline Solids,1976,21:373. |
[6] | Kobayashi M;Ishii M .[J].Nuclear Instruments and Methods B,1991,61:491. |
[7] | Soga N;Tashiro M .[J].Journal of the Ceramic Society of Japan,1962,70:143. |
[8] | Deng Q;Yin Z;Zhu R .[J].Nuclear Instruments and Methods A,1999,438:415. |
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