A compact, flexible low energy experimental platform of highly charged ions for atomic physics experiments

Abstract

A new, compact and flexible low energy experimental platform of highly charged ions (HCIs) based on an electron beam ion source of the Dresden EBIS-A type is presented. The so-called IMP EBIS-A Facility of the Institute of Modern Physics (IMP) in Lanzhou is designed as a user facility for the state-resolved charge exchange studies in HCIs with atoms and molecules collisions by cold target recoil ion momentum spectroscopy. The important feature of this facility is that it can provide high charge state and low energy heavy ions at room temperature and limited space. The IMP EBIS-A facility consists of a Dresden EBIS-A ion source, a Wien filter as well as beam focusing and beam diagnostics elements. All components are installed on a small high voltage platform connected with an ion beam deceleration and acceleration lens assembly. The testing results reached and exceeded the expectation of the design. Utilizing the cold target recoil ion momentum spectroscopy, the first experiment of state-resolved charge transfer based on the IMP EBIS-A facility was introduced.