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  Eichler, J.; Stöhlker, Th.: Radiative electron capture in relativistic ion-atom collisions and the photoelectric effect in hydrogen-like high-Z systems. Physics Reports 439 (2007), p. 1-99

10.1016/j.physrep.2006.11.003

Abstract:
In recent years, radiative electron capture (REC) in high-energy ion atom collisions from a low-Z target into a bare (or few-electron) high-Z projectile up to U⁹²⁺ has been studied in great detail. This process, in which an electron is transferred from the target to the projectile with the simultaneous emission of a photon, plays an important role in spectroscopic studies of high-Z few-electron atoms. Being the inverse reaction of the atomic photoelectric effect, it also provides a means of investigating the latter in a high-energy regime that is otherwise almost inaccessible. In the present article, the experimental techniques as well as the theoretical developments are reviewed, and a summary of results is given.