Li-和Na-单电子解离过程的研究 |
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引用本文: | 陈熙萌,吴翠娥,刘兆远,于得洋,祁中,王强,杨治虎,刘惠萍. Li-和Na-单电子解离过程的研究[J]. 原子核物理评论, 2002, 19(2): 169-171. DOI: 10.11804/NuclPhysRev.19.02.169 |
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作者姓名: | 陈熙萌 吴翠娥 刘兆远 于得洋 祁中 王强 杨治虎 刘惠萍 |
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作者单位: | 1兰州大学物理科学与技术学院现代物理系;2 中国科学院近代物理研究所; |
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基金项目: | 国家自然科学基金资助项目(19704006); 教育部高等学校骨干教师基金资助项目 |
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摘 要: | 采用交叉束方法 ,利用负离子源产生的 3— 19keV的Li- 和Na- 轰击惰性气体靶He ,Ne和Ar ,通过静电偏转和位置灵敏探测器区分碰撞后中性粒子束和负离子束 ,测量了不同碰撞系统的中性粒子计数与相应入射负离子计数的比值R(E) ,并得到R(E)与入射负离子能量、负离子种类和靶原子种类的关系. The count ratios R of the neutralized atoms of final state to projectiles Li -and Na -in collision with He, Ne and Ar are measured in the energy range of 3-19 keV. It is found that the count ratios R increase slowly with the collision energy in whole experimental energy range for He, Ne and Ar. For Li -→He, Ne, Ar Collisions, R(He)≈R(Ar)>R(Ne), and for Na -→He, Ne, Ar Collisions, R(He)>R(Ar)> R(Ne).
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关 键 词: | 交叉束 负离子解离 负离子原子碰撞 |
文章编号: | 1007-4627(2002)02-0169-03 |
收稿时间: | 1900-01-01 |
修稿时间: | 2002-04-01 |
Single Electron Detachment of Li- and Na- in Collision with He, Ne and Ar |
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Affiliation: | (1 Department of Modern Physics; Lanzhou University; Lanzhou 730000; China; 2 Institute of Modern Phys; |
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Abstract: | The count ratios R of the neutralized atoms of final state to projectiles Li -and Na -in collision with He, Ne and Ar are measured in the energy range of 3-19 keV. It is found that the count ratios R increase slowly with the collision energy in whole experimental energy range for He, Ne and Ar. For Li -→He, Ne, Ar Collisions, R(He)≈R(Ar)>R(Ne), and for Na -→He, Ne, Ar Collisions, R(He)>R(Ar)> R(Ne). |
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