Document Type

Conference Proceeding

Abstract

Over the past two decades, the dipole approximation has facilitated a basic understanding of the photoionization process in atoms and molecules. Recent experiments on the 1s inner shells of small molecules at relatively low photon energies (⩽ 1000 eV) show strong nondipole effects. They are significant and measurable at energies close to threshold, in conflict with a common assumption that the dipole approximation is valid for photon energies below 1 keV.

Disciplines

Atomic, Molecular and Optical Physics | Physical Chemistry

Comments

Presented at: The XXI International Conference on the Physics of Electronic and Atomic Collisions (XXI ICPEAC), Sendai, Japan, July 22-27, 1999

Also presented at: X-ray and Inner-shell Processes: 18th International Conference, Chicago, Ill., August 23-27, 1999

Permissions

Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.