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氧离子激发光谱的精密测量
引用本文:杨治虎,张小安,赵永涛,殷纬纬,李宁溪. 氧离子激发光谱的精密测量[J]. 物理学报, 2006, 55(9): 4520-4527
作者姓名:杨治虎  张小安  赵永涛  殷纬纬  李宁溪
作者单位:(1)中国科学院近代物理研究所,兰州 730000; (2)中国科学院近代物理研究所,兰州 730000;咸阳师范学院物理系,咸阳 712000
基金项目:国家自然科学基金;等离子体物理国家级科技重点实验基金
摘    要:在2×1.7串列加速器上利用束-箔方法和装有CCD的Spectrapro-500i光谱单色仪的测量装置,在2MeV束能下研究了250nm—350nm波长范围离化态氧原子光谱.在250nm—350nm范围已确定的201条光谱线,确定的跃迁大部分属于OⅡ到OⅣ原子的n,l能级间的跃迁,一些实验结果与现有理论一致.实验发现,在这个范围的光谱大都属于弱跃迁谱线,并且许多谱线是以前没有观测到的.关键词:串列加速器氧离子CCD光谱

关 键 词:串列加速器  氧离子  CCD  光谱
文章编号:1000-3290/2006/55(09)/4520-08
收稿时间:2006-01-24
修稿时间:2006-01-242006-02-23

Precision measurement of excited spectra of oxygen ions
Yang Zhi-Hu,Zhang Xiao-An,Zhao Yong-Tao,Yin Wei-Wei,Li Ning-Xi. Precision measurement of excited spectra of oxygen ions[J]. Acta Physica Sinica, 2006, 55(9): 4520-4527
Authors:Yang Zhi-Hu  Zhang Xiao-An  Zhao Yong-Tao  Yin Wei-Wei  Li Ning-Xi
Abstract:Spectra of the ionized oxygen atom were researched with the Pro-500i monochromator equipped with CCD. The beam foil method was used at energy of 2 MeV in a 2×1.7 Tandem accelerator. In this work, we report 201 spectral lines determined in the region 250—350 nm, and most spectral lines were attributed to n,l energy level transitions from OⅡ to OⅣ atoms. Our experimental results are in good agreement with existing theoretical calculations. Many lines reported in this paper have not been measured in past experiments, and a majority of them are week transitional lines.
Keywords:CCD
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