Doubly Differential Cross Sections of Secondary Electrons Ejected from Atomic Hydrogen by Electron Impact (Physics)

提出了测量绝对双微分 原子发射二次电子的截面 氢通过电子碰撞（阈值2 KeV）。 调制 将使用交叉束方法，氢原子束 将通过微波放电技术提供。 的 测量的二次电子的能量和角度范围 将是从1.0 eV到接近入射能量和从6到1.0 eV。 分别为160度。 将特别强调 在低能量范围内对入射和 次级电子 这项研究计划将使一个关键的测试， 碰撞理论和三体连续体问题，因为 氢原子的波函数是已知的。

It is proposed to measure absolute doubly differential cross sections for secondary electrons ejected from atomic hydrogen by electron impact (threshold 2 KeV). A modulated crossed-beammethod will be used, and the atomic hydrogen beam will be provided by a microwave discharge technique. The energy and angular range of the measured secondary electrons will be from 1.0 eV to near the incident energy and from 6 to 160 degrees, respectively. A particular emphasis will be on the measurements in the low energy range for both incident and secondary electrons. This research program will enable a crucial test of the collision theory and three body continuum problem because the wave functions of atomic hydrogen are known.