外束离子感生发光法及其应用研究初探  

Study on External Beam Ionoluminescence and Its Primary Application

作　　者：沙因[1] 刘柱华[1] 王观明 章晓剑 王昕[1] 罗博 张彩霞[1] 杨振军[1] 龚建华 

机构地区：[1]中国科学院高能物理研究所

出　　处：《岩矿测试》1996年第4期274-278,共5页Rock and Mineral Analysis

基　　金：中国科学院八五重点科研项目;中国科学院核分析技术开放研究实验室资助

摘　　要：基于外束质子激发Ｘ荧光分析（ＰｒｏｔｏｎＩｎｄｕｃｅｄＸｒａｙＥｍｉｓｓｉｏｎ———ＰＩＸＥ法）的外束离子感生发光（ＩｏｎＢｅａｍＩｎｄｕｃｅｄＬｕｍｉｎｅｓｃｅｎｃｅ，ＩＢＩＬ）实验装置，实现了ＩＢＩＬ对地质样品斜长石（钙长石）中元素铁的化学价态的直接分析。实验结果表明，Ｆｅ２＋和Ｆｅ３＋光谱峰分别位于５５３ｎｍ和６８２ｎｍ清晰分离，Ｆｅ３＋光谱峰清晰突出。facility for detection of ionoluminescence(IL) induced by a 2.4 MeV external proton beam was developed. In order to offer useful information about the chemical properties of atoms in crystals, chemical valence states of iron in a plagioclase were directly analyzed by external beam IL method. Different wavelength intervals were selected by light filter as a band pass filter and then detected by photomultiplier. Both ferrous(Fe 2+ ) and ferric(Fe 3+ ) peaks in IL emission spectrum from the plagioclase were presented with distinct separation.

关 键 词：外束离子 感生发光法 铁 化学价态 斜长石 

分 类 号：P578.968[天文地球—矿物学]