Laboratory Study of Atomic & Molecular Collision Projects ofAtmospheric Importance

原子的实验室研究

• 批准号: 8913700
• 负责人: R Stebbings
• 金额: --
• 依托单位: William Marsh Rice University
• 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: 1989-11-15 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8913700&HistoricalAwards=false
• 关键词: Laboratory; Study; Atomic; & Molecular

Energetic charged particles precipitating into the earth's atmosphere cause atmospheric heating, ionization and optical emissions. The understanding of these effects requires the knowledge of the ability of the various atmospheric constituents to react to these particles. The measurement of this ability to transfer energy is done in laboratory cross-section experiments. The work proposed here focuses on the accurate measurement of absolute cross-sections which can be applied directly in theoretical models that predict the aeronomic consequence of particle precipitation. This research centers on collision in atmospherically relevant species, specially including the atomic oxygen atom. New techniques will be implemented for mass spectrometry, measurement of large scale scattering, production of O-atom scattering targets and study of dissociative excitation.

高能带电粒子沉淀到地球的 大气导致大气加热，电离和光学 排放 了解这些影响需要 了解各种大气成分的能力， 对这些粒子产生反应。 这种能力的测量， 在实验室横截面实验中进行能量转移。 这里提出的工作重点是准确测量 绝对横截面，可以直接应用于 理论模型预测的空气动力学后果 粒子沉淀 本研究以碰撞为中心， 大气相关物种，特别是包括原子 氧原子 新技术将用于大规模 光谱学，大尺度散射测量，生产 O原子散射靶及离解态的研究 激发