State-Selected and State-to-State Cross Sections for Ion-Molecule Reactions of Importance in Planetary Ionosphere

详细了解的沉积和转让的 高层大气中的能量需要详细的了解 各种离子、原子和 大气中的分子。 实验室测量这些 由于涉及许多状态，因此性质是复杂的。 该奖项为实验室提供持续支持 测量旨在确定重要的横截面， 涉及空气动力学的选定状态之间的相互作用 重要离子O+和N2分子。 类似的反应 涉及其他大气物种的重要性一般较低 也可以是研究。 尤其重要的是前景 在最重要的低电子能量下获得结果 地球大气层的高层大气学。 私家侦探 在研制专用设备方面取得了重要进展， 研究，预计这项工作的结果将 对理解许多基本问题都很重要 类地行星的大气层。

The detailed understanding of the deposition and transfer of energy in the upper atmosphere requires a detailed understanding of the basic interactions between the various ions, atoms, and molecules in the atmosphere. Laboratory measurement of these properties is complicated because of the many states involved. This award provides continuing support for laboratory measurements aimed at determining important cross sections for interactions between selected states involving the aeronomically important ion O+ and the N2 molecule. Similar reactions of generally lesser importance involving other atmosphere species can also be studies. Especially important is the prospect of obtaining results at the low electron energies of most importance for aeronomy of the earth's atmosphere. The PI has made important progress in developing specialized equipment for this research, and it is expected that the results of this work will be important for many fundamental problems in the understanding of the atmospheres of the terrestrial planets.