Intermolecular multiple scattering of electrons. I. Theory

Intermolecular multiple scattering of electrons. I. Theory

Coherent intramolecular multiple scattering by free molecules has been investigated extensively in the literature. Scant attention has been paid to incoherent intermolecular multiple scattering, however, a potentially serious problem under some circumstances. Therefore, a treatment of this probler.n has be~~ carried out, taking advantage of simplifications afforded by the predominance of forwar...

Intermolecular multiple scattering of electrons . II . Observed effects for SF 6

A theory of intermolecular mUltiple scattering of electrons by vapor molecules is tested by comparing predicted effects with effects observed over a wide range of sample densities. It is found that the theory, which contains no adjustable constants and is based on small angle approximations, gives a good account of experimental observations. The degree to which experimental structure refinement...

A Multiple Scattering Theory of Thermal-diffuse Scattering for Low-Energy Electrons

A perturbation theory of thermal diffuse scattering of low-energy electrons is developed along the lines of von Laue's "reciprocity theorem" approach successfully used by Kainuma in the consideration of diffuse scattering in high-energy electron diffraction. This theory takes into account the multiple scattering of the electrons within the crystal, and is so formulated that it may be used in co...

Angular correlation between photoelectrons and Auger electrons within scattering theory

Multiple Scattering of Fast Electrons and Alpha-Particles, and Curvature of Cloud Tracks Due to Scattering

about the zenith with intensity prominences in the zenith-angle range from 5' to 10', near 20', and in the range from 35' to 40'. These. results tend to confirm the predictions of Schremp relative to the existence of a fine structure due to a line or banded nature of the energy spectrum forcosmic rays at infinity. That the finestructure may not arise partly from magnetic effects is not entirely...