Lifetime measurements using beam-foil spectroscopy

A review is presented of the current status of beam-foil lifetime measurements, with emphasis on the techniques now being used to correct for cascade effects. Examples of application of these technqiues are taken from work that has appeared since the Laval Conference of 1981. The ANDC method is shown to yield generally satisfactory results for one- and two-electron systems, but further work is needed to establish the best method for more complex systems. Brief discussions are also given of recent lifetime measurements for some moderately- and highly-ionized atoms, and of very recent measurements of an autoionization rate in neutral fluorine and a magnetic-dipole transition rate in hydrogen-like argon. A short summary of recent developments in heay metal ion sources is also presented. (orig.)