Measurement of ionization, charge exchange and ion confinement times in charge breeder ECR ion sources with short pulse 1+ injection of metal ions

Abstract The Consecutive Transients (CT) method is used for estimating the characteristic times of ionization, charge exchange and confinement within plasma a Charge Breeder Electron Cyclotron Resonance Ion Source (CB-ECRIS). reveals differences in between different source configurations, with K 9+ breeding efficiencies 8.9 % 20.4 %, allows qualitative explanation improved efficiency. increase efficiency accompanied by decrease ionization time low states, high an overall ion time, which increases non-linearly state. exhibits minimum near state 8+ , indicating neutral density core. CT-method yields distribution possible n e (E ) corresponding to spatial ions. results hint at non-uniform electron energy as well nested-layer populations — hot dense ions