State-Resolved Measurements of Single-Electron Capture in Slow Ne7+- and Ne8+-Helium Collisions
Single-electron capture in collisions of 9 keV x q Ne8+ and Ne7+ ions with He has been studied using cold-target recoil-ion momentum spectroscopy. With an improved apparatus a longitudinal momentum resolution of 0.07 au has been achieved. This momentum component is directly proportional to the difference in the binding energy of the active electron between the final and the initial state. For the first time state-resolved differential cross sections have been determined with respect to the main quantum number, subshell level and spin state of the captured electron. A comparison with recent theoretical results for energy levels in Be-like Ne is given.
D. Fischer et al., "State-Resolved Measurements of Single-Electron Capture in Slow Ne7+- and Ne8+-Helium Collisions," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 35, no. 5, pp. 1369-1377, Institute of Physics - IOP Publishing, Mar 2002.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/35/5/318
Keywords and Phrases
Atomic Physics; Binding Energy; Electrons; Helium; Neon; Positive Ions; Quantum Theory; Electron Beam Ion Trap (EBIT); Electron Absorption
International Standard Serial Number (ISSN)
Article - Journal
© 2002 Institute of Physics - IOP Publishing, All rights reserved.