Differential Excitation Cross Sections of Atomic Hydrogen byElectron Impact

用调制交叉束方法测量了氢原子从电子碰撞阈值能量到300 eV激发到低激发态原子能级n-2、3和4的截面。其目的是提供基本散射计算的测试，并解决理论和实验之间存在的差异。为此，测量是在绝对基础上校准的，角度相关性是测量的，这种测量的唯一类型是美国。

A modulated crossed beam method is used to measure cross sections for electron impact excitation of atomic hydrogen to the lower excited atomic levels, n - 2, 3 and 4 from threshold electron impact energy up to 300eV. The objective is to provide a test of basic scattering calculations and to resolve existing discrepancies between theory and experiment. To this end, the measurements are calibrated on an absolute basis, and the angular dependencies are measured, the only measurements of this kind is the United States.