Experimental Studies of Electron Collisions with Excited Atoms

电子与激发态原子碰撞的实验研究

• 批准号: 9986005
• 负责人: Chun Lin
• 金额: $ 64.5万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9986005&HistoricalAwards=false
• 关键词: Experimental; Studies; Electron; Collisions; Excited

This is a project to measure total cross sections for excitation and ionization resulting from scattering of electrons off atoms in an excited state. Within a gas discharge the net effects of these processes can be larger than the effects of the corresponding processes out of the ground state level. Measurements will focus on the four rare gas atoms, neon, argon, krypton, and xenon. The use of two complementary apparatuses will make it possible to carry out the measurements over a wide energy range and for many different final levels. Results of the measurements will enrich the basic understanding of electron impact processes and provide fundamental information needed for new technological advances.

这是一个测量激发和电离的总截面的项目，该截面是由于电子在激发态下与原子的散射而产生的。在气体放电中，这些过程的净影响可能大于基态水平以外的相应过程的影响。测量将集中在四个稀有气体原子上，它们是霓气、氩、氪和氙气。使用两个互补的仪器将有可能在很大的能量范围内和许多不同的最终能级上进行测量。测量结果将丰富对电子碰撞过程的基本了解，并提供新技术进步所需的基本信息。