CAJ | 학술논문

采用高温熔融法制备了 SiO2-Li2O-Al2O3-MgO为基质系统的Gd3+、Ce3+掺杂的玻璃样品,研究了玻璃闪烁体中Gd3+引入对其发光性能的影响，结果表明：玻璃闪烁中Gd3+的引入存在Gd3+→Ce3+能量转移机制，有利于提高玻璃闪烁体的发光强度，Gd3+的引入同时提高了玻璃闪烁体的光碱度，使发射波长产生了相应的红移，Stokes位移变大；Gd3+在玻璃闪烁中较佳掺杂范围在15%左右，过高会产生浓度淬灭效应，不利于玻璃闪烁体的发光。
채용고온용융법제비료 SiO2-Li2O-Al2O3-MgO위기질계통적Gd3+、Ce3+참잡적파리양품,연구료파리섬삭체중Gd3+인입대기발광성능적영향，결과표명：파리섬삭중Gd3+적인입존재Gd3+→Ce3+능량전이궤제，유리우제고파리섬삭체적발광강도，Gd3+적인입동시제고료파리섬삭체적광감도，사발사파장산생료상응적홍이，Stokes위이변대；Gd3+재파리섬삭중교가참잡범위재15%좌우，과고회산생농도쉬멸효응，불리우파리섬삭체적발광。
The SiO2-Li2O-Al2O3-MgO system based samples doping with rare earth Ce3+ ions and Gd3+ ions are synthesized by high temperature melting method. Effects of Gd3+ on luminescent properties of glass scintillator have been studied. Results of meausred radioluminescence spectra show that the introduction of Gd3+ in glass improves the scintillator luminescent intensitiy because of Gd3+→Ce3+ energy transfer mechanism, and at the same time, the introduction of Gd3+ increase Optical basicity of glass scintillator, so that the corresponding emission wavelength red-shift and larger Stokes shift produced; Gd3+ content in the glass have a better range about 15%, too high will not help to luminescence of glass scintillator because of corresponding concentration quenching effect.