Molecular-orbital x rays

Abstract

Line-broadening theory is applied to photons emitted during atomic collisions. The maximum cross section for such collisions has an order of magnitude of ${10}^{-5\mathrm{}}$ $\pi a_0^2$, and is independent of the atomic number $Z$. Excitation of such radiation without the presence of atomic x rays is discussed. The spectrum may show an oscillatory energy dependence. The molecular-orbital x ray may have a linelike emission which is characteristic of the united atom.