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

为了研究我们上层大气的能量输入，不同原子和分子的辐射可以从地面和太空观测平台上观测到。要分析这些数据，需要了解在各种激发条件下这些成分发出的光有多容易。本研究是一个实验室和理论研究，以确定所有重要的电子跃迁的分子氧在4-10 ev的绝对电子横截面。能量损失区。微分截面将通过调制交叉梁方法测量，解离产物将被识别。这些结果将通过广泛的组态相互作用计算来分析，以获得大量状态的势能曲线和偶极子跃迁矩。

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.