Double electron capture in low-energy Fe{sup 17+}+He collisions
- Departement de Physique, Universite de Marne La Vallee, 2 Rue de La Butte Verte, 93166 Noisy le Grand (France)
- Department of Physics, University of Nevada, Reno, Reno, Nevada 89557 (United States)
- High Temperature Physics Division, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Double electron transfer processes for the system Fe{sup 17+}+He have been studied utilizing high-resolution Auger electron spectroscopy. A thorough analysis of the experimental conditions (single collision condition and metastable fraction content at the incident ion beam and their influence) has been performed, leading to the following conclusions. The double capture leads to the preferential population of 2{ital p}{sup 5}5{ital l}8{ital l}{sup {prime}} configurations sharing their decay between Auger processes and radiative cascade transitions. The observed sodiumlike {open_quote}{open_quote}quartet{close_quote}{close_quote} and {open_quote}{open_quote}doublet{close_quote}{close_quote} states result from cascade contributions from higher-lying levels. Tentative mechanisms for the production of the quartet states are suggested using a spin-flip model. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 284334
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 53; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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