Evidence for radiative double electron capture (RDEC) in F[sup 9+] on carbon collisions

Abstract

Radiative double electron capture (RDEC) is a charge exchange process involving the capture of two target electrons into a bound state of the projectile with simultaneous emission of a single photon. RDEC is the time-reversed process of double photoionization if the target electrons are loosely bound. Some problems involved with electronelectron correlations can be best treated using this approach for fully-stripped ions. The current work aimed to observe x rays associated with projectile charge-changing of single and double electron capture and no charge change by F9+ ions and to compare with recent work for O8+ ions and with theory.