COLLISIONS OF HIGHLY-CHARGED IONS WITH ELECTRONS, ATOMS AND SURFACES

At the Oak Ridge Multicharged Ion Source Facility, an experimental ato mic collisions physics program is centered around a recently upgraded Electron Cyclotron Resonance (ECR) multicharged ion source. The 10 GHz CAPRICE source has been in operation since October 22, 1992, and has provided more intense, higher charge ion beams than our previous ECR i on source. Intense metallic beams have recently become available with the installation of a metallic oven on the source. In addition to meas urements of electron-impact excitation, carried out in collaboration w ith the Joint Institute for Laboratory Astrophysics (JILA), experiment s are presently on-line to study electron-impact ionization, low-energ y ion-atom collisions, and ion-surface interactions. A brief summary o f our various activities with an emphasis on the new capabilities is p resented.