Studies of Absolute Differential Excitation Cross Sections of Molecular Oxygen by Electron Impact

电子撞击氧分子绝对差动激发截面的研究

• 批准号: 8913022
• 负责人: Tong-Wha Shyn
• 金额: $ 18.49万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-11-01 至 1992-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8913022&HistoricalAwards=false
• 关键词: Studies; Absolute; Differential; Excitation; Cross

In order to study the energy input to our upper atmosphere, radiation from the different atoms and molecules is viewed from both ground based as well as space borne observing platforms. To analyze these data requires basic information on how easy it is to get light emitted by these constituents under various excitation conditions. This study is both a laboratory and theoretical study to determine the absolute electron cross- sections for all of the important electronic transitions of molecular oxygen in the 4-10 ev. energy loss region. Differential cross-sections will be measured by a modulated crossed-beam method and the dissociation products will be identified. These results will be analyzed by an extensive configuration interaction calculation to obtain potential energy curves and dipole transition moments from a large number of states.

为了研究进入高层大气的能量， 从不同原子和分子的辐射来看， 地面和空间观测平台。 到 分析这些数据需要基本的信息， 在不同的环境下， 激发条件 这项研究既是实验室， 理论研究，以确定绝对电子交叉- 所有重要的电子跃迁 分子氧在4-10电子伏。能量损失区微分 横截面将通过调制交叉光束测量 方法和解离产物将被鉴定。 这些 结果将通过广泛的配置进行分析 相互作用计算，获得势能曲线， 偶极跃迁矩来自大量的状态。