Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions
Citation
Source Title
ISSN
School
Remarks
Copyright © 2014 by the American Physical Society
Collection
Abstract
The role of hollow states intermediately produced in electron-impact ionization of metastable He-like N5+(1s2s3S1) ions has been investigated in detail. A crossed-beam setup and suitable experimental techniques were employed for the measurement of accurate absolute cross sections and precise energy-scan data. Fine structures arising from K-shell excitations and associated resonances have been observed for this two-electron ion with less than ±0.5 eV uncertainty on the energy scale. Fine details, such as interference of the reaction pathways of direct ionization and excitation with capture of the incident electron followed by double-Auger decay, could be revealed. Ab initio calculations based on the convergent close coupling (CCC) approach are in good agreement with the experiment.
Related items
Showing items related by title, author, creator and subject.
-
Straker, Leon; Abbott, R.; Piek, Jan; Pollock, Clare; Davies, P.; Smith, Anne (2009)Background: Many children are reported to have insufficient physical activity (PA) placing them at greater risk of poor health outcomes. Participating in sedentary activities such as playing electronic games is widely ...
-
Straker, Leon; Abbott, R.; Smith, Anne (2013)Objective: To evaluate the impact of (1) the removal of home access to traditional electronic games or (2) their replacement with active input electronic games, on daily physical activity and sedentary behaviour in children ...
-
Abbott, R.; Smith, Anne; Howie, Erin; Pollock, Clare; Straker, Leon (2014)Objective: Active-input videogames could provide a useful conduit for increasing physical activity by improving a child’s self-confidence, physical activity enjoyment, and reducing anxiety. Therefore this study evaluated ...