STUDIES OF HIGHLY-CHARGED IONS WITH EBIT AND SUPER-EBIT

The LLNL electron beam ion traps provide cold highly charged ions up to bare U. These machines have provided a wealth of atomic physics data using a compact, relatively inexpensive, device. The physics program has studied electron-ion collisions, QED, ion-surface interactions, and plasmas physics among many other topics. The prospects for the study of the highest charge states in the highest Z ions led to the beam energy upgrade of the first EBIT into Super-EBIT. The desire to use ions as a research probe in themselves led to an ion extraction program on EBIT-2. Finally, a Penning trap (referred to as the RETRAP) has been constructed to catch extracted ions where they can be further cooled and studied. The results of several experiments at the LLNL EBIT facility are herein described. The discussion serves to elucidate the program's capabilities.