Progress Report on Relativistic (e,2e) Processes

Remark on the theory of three-body effects in relativistic (e,2e) processes

“…The majority of the more recent theoretical studies of relativistic (e, 2e) processes has focused on discussing the pertinent triply differential cross sections as a function of the detection angles of the electrons (for a review, see [4]). The first experimental data [1], that were taken as a function of the emission energy of one of the electrons at fixed observation angles, have received comparatively little attention.…”

A fine-structure selected relativistic (e, 2e) measurement on the subshell of gold

“…(e, 2e) measurements are kinematically complete electron-electron coincidence measurements of the process of electron-impact ionization providing detailed information on the dynamics of the process (see, for instance, Lahmam-Bennani 1991). Experiments of this type using relativistic primary electron beams have so far concentrated on the ionization of 1s 1/2 shells of intermediate and high-Z atoms Nakel 1982, Bonfert et al 1991; for an overview of the data currently available, see Dreizler et al (1997)). These states are characterized by a density maximum at the location of the atomic nucleus, so that the collision dynamics is essentially determined at extremely small radial distances.…”