Experimental Studies of Electron Collisions with Excited Atoms

这是一个测量激发态中电子从原子上散射而产生的激发和电离的总截面的项目。在气体排放中，这些过程的净效应可能大于基态水平外相应过程的效应。测量将集中在四种稀有气体原子上：氖、氩、氪和氙。使用两种互补的仪器可以在很宽的能量范围内对许多不同的最终能级进行测量。测量结果将丰富对电子撞击过程的基本认识，并提供新技术进步所需的基本信息。

This is a project to measure total cross sections for excitation and ionization resulting from scattering of electrons off atoms in an excited state. Within a gas discharge the net effects of these processes can be larger than the effects of the corresponding processes out of the ground state level. Measurements will focus on the four rare gas atoms, neon, argon, krypton, and xenon. The use of two complementary apparatuses will make it possible to carry out the measurements over a wide energy range and for many different final levels. Results of the measurements will enrich the basic understanding of electron impact processes and provide fundamental information needed for new technological advances.