Quenching Collisions of Low-Energy Metastable Multiply-Charged Argon Ions
Abstract
Quenching rates have been measured for selected metastable levels of Ar(q+) ions (q = 2, 3, 9, and 10) stored in a Kingdon ion trap, with mean energies of 262q eV and 181q eV. Effective quenching cross sections derived from these rates are found to be comparable to electron-capture cross sections of Ar(q+)-Ar collisions studied independently using ion-beam techniques. This implies that quenching is dominated by electron-capture collisions which change the ion charge state.
Description
Journals published by the American Physical Society can be found at http://publish.aps.org/Subject
ELECTRON-CAPTURECROSS-SECTIONS
LIFETIME
MODEL
STATE
TRAP
AR
Optics
Physics, Atomic, Molecular and Chemical