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          Institute: MPI für Kernphysik     Collection: Spectroscopy and Dynamics of Trapped and Stored Ions     Display Documents



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ID: 63095.0, MPI für Kernphysik / Spectroscopy and Dynamics of Trapped and Stored Ions
Dielectronic recombination at low energies: Spectroscopy of doubly excited states in beryllium-like Na7+ ions
Authors:Kieslich, S.; Böhm, S.; Brandau, C.; Müller, A.; Schippers, S.; Shi, W.; Gwinner, G.; Schnell, M.; Wolf, A.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume (in Journal):205
Start Page:99
End Page:101
Name of Conference/Meeting:11th International Conference on the Physics of Highly Charged Ions
Place of Conference/Meeting:Caen
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2002-09-01
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2002-09-06
Copyright:Copyright © 2003 Elsevier Science B.V. All rights reserved
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Absolute rate coefficients for the dielectronic recombination (DR) of Na8+ ions producing doubly excited states in beryllium-like Na7+ have been measured at the Heidelberg heavy-ion test storage ring (TSR). The investigated electron energy range covers all DR resonances related to 2s2p1/2 and 2s 2p3/2 Δn=0 core excitations. Resonances related to Δn =1 and Δn=2 transitions of the valence electron are found at relative energies between 50 and 250 eV. At very low energies the resonance group associated with Na7+ (1s2pj7lj') intermediate states has been investigated with an energy resolution and precision that will challenge state-of-the-art theory.
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group D. Schwalm/Atomic and Molecular Physics with Stored Ions (A. Wolf)
External Affiliations:Institut für Kernphysik, Justus-Liebig-Universität, Leihgesterner Weg 217, D-35392, Giessen, Germany
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