Experimental Studies of Inelastic Electron Collisions with Metastable Atoms

非弹性电子与亚稳态原子碰撞的实验研究

• 批准号: 9005895
• 负责人: Chun Lin
• 金额: $ 64.46万
• 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: 1990
• 资助国家: 美国
• 起止时间: 1990-07-15 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9005895&HistoricalAwards=false
• 关键词: Experimental; Studies; Inelastic; Electron; Collisions

Probabilities of excitation by electron impact on the 21S and 23S metastable levels of atomic helium, to a large number of higher levels in the n1S, n1P, n1D, n3S, n3P and n3D series, are measured, with the objective of understanding the basic physics of collisional interactions with metastable atoms. Cross sections for ionization out of the 21S and 23S metastable levels are also measured.

为了了解氦原子与亚稳态原子碰撞相互作用的基本物理机制，测量了电子对氦原子21S和23S亚稳态能级的激发几率，得到了N_1S、n_1P、n_1D、N_3S、n_3P和n_3d系列中的大量较高能级。还测量了21S和23S亚稳态能级的电离截面。