RUI: Electron Impact Ionization of Argon and Krypton and Excitation of Resonance Transitions in Neon, Xenon and Molecular Hydrogen.

RUI：氩和氪的电子碰撞电离以及氖、氙和分子氢共振跃迁的激发。

• 批准号: 0965793
• 负责人: Murtadha Khakoo
• 金额: $ 30.7万
• 依托单位: CSU Fullerton Auxiliary Services Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0965793&HistoricalAwards=false
• 关键词: RUI; Electron; Impact; Ionization; Argon

The program of the experimental low energy electron collisions group at California State University Fullerton is currently focused on the study of electron collisions with inert rare gases (neon, argon, krypton and xenon) and molecular hydrogen (also a closed shell molecule). The dynamics of electron impact ionization of the rare gas target (specifically neon and xenon) revealed some very interesting results last year. These showed for neon that in the near-threshold ionization region in specific scattering cases (forward scattering and where the energy of either of the two outgoing electrons was very low), the process seems to be inhibited by the electron being sucked into the polarized ion-core. The group has proposed an interesting hypothesis for this effect. Presently it is delving deeper into such mechanisms, with similar experiments with argon and krypton, A second series of experiments in the future hopes to provide detailed information regarding the imparting of angular momentum by the scattering electron to the rare gas target or molecular hydrogen in coincidence with the scattered electron, especially to test state-of-art theories for large angle scattering near backward scattering angles. The experimental low energy electron collisions group at California State University Fullerton is a very active group, where almost half of the physics department's majors participate in research. The group also has a strong publication record with undergraduate student authors on papers in top peer-reviewed journals. The program generates by far more PhD-bound students than any other program in the department. Broader impacts also involve education of a significant number of high school students as well as under-represented women and minority students (California State Fullerton is a nationally recognized Hispanic serving college).

加州州立大学富勒顿分校的实验低能电子碰撞小组的计划目前集中在研究电子与惰性稀有气体（氖、氩、氪和氙）和分子氢（也是一种封闭的壳层分子）的碰撞。去年，稀有气体靶（特别是氖和氙）的电子碰撞电离动力学揭示了一些非常有趣的结果。这些结果表明，在特定散射情况下（前向散射和两个出射电子中任何一个的能量都非常低），在近阈值电离区，氖的过程似乎被吸入极化离子核的电子所抑制。该小组对这种效应提出了一个有趣的假设。目前，它正在深入研究这种机制，用氩和氪进行类似的实验，未来的第二系列实验希望提供有关散射电子向稀有气体靶或分子氢赋予角动量的详细信息，特别是测试最先进的理论，用于后向散射角附近的大角度散射。加州州立大学富勒顿分校的实验低能电子碰撞小组是一个非常活跃的小组，物理系几乎一半的专业人员都参与了这个小组的研究。该小组还拥有强大的出版记录，本科生作者在顶级同行评审期刊上发表论文。该计划产生了更多的博士学位的学生比任何其他程序在部门。更广泛的影响还涉及大量高中生以及代表性不足的妇女和少数民族学生的教育（加州州立富勒顿是一所全国公认的西班牙裔服务学院）。