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实验制备了一种密度为5.2 g·cm-3的高密度铈离子掺杂硼硅酸盐闪烁玻璃,该玻璃具有较高的析晶稳定性.测试了该闪烁玻璃的激发和发射光谱,其峰值波长分别对应于325和385mm,斯托克斯位移为60 nm.当氧化铈掺杂浓度小于1%(质量分数)时,325 nm激发下的发射光谱强度随浓度的增加而提高.而掺杂浓度的进一步提高,由于三价态铈离子的自吸收等吸收猝灭效应导致380mm的发射强度出现严重降低.掺杂1%(质量分数)的玻璃样品经245Gy的伽马射线辐照后,其可见波段的透过率并未出现明显降低,说明该玻璃具有较好的耐辐照性能.

参考文献

[1] Need J S;Boatner L A;Spurrier M;Szupryczynski P Melcher C L .Cerium-doped mixed alkali rare-earth double-phosphate scinotillators for thannal neutron detection[J].Nuclear Instruments and Methods in Physics Research Section A,2007,579:19.
[2] Nild M .Modern scintillation materials Physics,applications and perspectives[J].Journal of Ceramie Processing Research,2004,5(02):101.
[3] Jiang C.;Deng PZ.;Zhang JZ.;Gan FX. .Radioluminescence of Ce3+-doped B2O3-SiO2-Gd2O3-BaO glass[J].Physics Letters, A,2004(3/4):323-328.
[4] Selling J;Schweizer S;Birowosuto M D;Dorenbos P .Ceriumdoped barium halide scintillators for X-ray and γ-ray detections[J].Journal of Applied Physics,2007,102:074915.
[5] 刘波,施朝淑.新型闪烁体的辐照效应[J].无机材料学报,2001(01):1-8.
[6] 任国浩,王绍华.核医学成像技术对无机闪烁材料的需求[J].材料导报,2002(07):31-34.
[7] 赵宏生,周万城.闪烁玻璃的研究进展[J].材料导报,2001(01):26-29.
[8] 刘淑美.新型闪烁材料--闪烁光纤[J].核物理动态,1993(04):43.
[9] 阎宏;朱永昌;高祀建;关铭.中子探测玻璃闪烁体的研究进展[J].建筑玻璃与工业玻璃,2008:21.
[10] 贝家芳,钱顾杰,梁晓峦,张俊标,杨云霞,陈国荣.三价铈离子掺杂锗酸盐玻璃的发光性能[J].硅酸盐学报,2006(07):827-830,841.
[11] A. Vedda;N. Chiodini;D. Di Martino;M. Fasoli;M. Martini;A. Paleari;G. Spinolo;M. Nikl;N. Solovieva;A. Baraldi;R. Capelletti .Rare-earth aggregates in sol-gel silica and their influence on optical properties[J].Physica Status Solidi. C, Conferences and critical reviews,2005(1):620-623.
[12] Jiang Chun;Zeng Qingji;Gan Fuxi .Scintillation properties of cerium-doped germinate glass[J].Proceedings of Spie,2000,4141:309.
[13] 姜淳,曾庆济,刘华,张俊洲,干福熹.Ce3+掺杂氧化物玻璃的发光特征[J].功能材料,2001(02):198-199,202.
[14] Wang S Y;Qiao Z P;Wang W;Qian Y T .XPS studies of nanometer CeO2 thin films deposited by pulse ultrasonic spray pyrolysis[J].Journal of Alloys and Compounds,2000,305:121.
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