Absolute Electron Impact Cross Sections for Atmospheric Species

大气物质的绝对电子撞击截面

• 批准号: 8915375
• 负责人: John Doering
• 金额: $ 32.5万
• 依托单位: Johns Hopkins University
• 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: 1990-01-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915375&HistoricalAwards=false
• 关键词: Absolute; Electron; Impact; Cross; Sections

Electron excitation of atmospheric constituents takes place in the atmospheres of Earth, the major planets and certain of their satellites, and other objects such as comets. Both photoelectron collisions with the ambient atmospheric species as will as impact of accelerated electrons in the auroral zones of the Earth and in certain regions on other planets are important. The award is a three-year renewal of a current NSF Aeronomy grant whose focus is to develop the techniques to measure the laboratory electron cross sections for unstable atmospheric species, principally atomic oxygen.

大气成分的电子激发发生在地球、主要行星及其某些卫星以及彗星等其他物体的大气中。 光电子与周围大气物质的碰撞以及地球极光区和其他行星某些区域中加速电子的影响都很重要。 该奖项是对当前美国国家科学基金会航空学资助的三年续展，其重点是开发测量不稳定大气物质（主要是原子氧）的实验室电子截面的技术。