RECENT DEVELOPMENTS AND NEW TRENDS IN (E, 2E) AND (E, 3E) STUDIES

The latest, most important developments in (e, 2e) studies are reviewed from an experimental point of view. These include ionization processes near threshold, the symmetric energy sharing collisions involving double scattering mechanisms, core states ionization, (e, 2e) measurements for autoionizing states and for the simultaneous excitation and ionization of the target. Double ionizing processes with coincidence detection of two or three electrons in the final state are also reviewed, including (e, e'-Auger) experiments and the new born (e, (3-1)e) and (e, 3e) domain.