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



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ID: 346939.0, MPI für Kernphysik / Spectroscopy and Dynamics of Trapped and Stored Ions
Progress in stored ion beam experiments on atomic and molecular processes
Authors:Wolf, A.; Buhr, H.; Grieser, M.; von Hahn, R.; Lestinsky, M.; Lindroth, E.; Orlov, D. A.; Schippers, S.; Schneider, I. F.
Language:English
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Hyperfine Interactions
Volume:172
Issue / Number:111-124
Start Page:111
End Page:124
Review Status:not specified
Audience:Experts Only
Abstract / Description:Stored fast ion beams in atomic and molecular collision experiments are discussed with an emphasis on electron-ion interactions at low relative energies. Recent progress was obtained in electron collision spectroscopy using an electron-cooled stored ion beam and a separate electron target in the same storage ring; from a cryogenic photocathode, electron beams with internal temperatures of 5 to 10 K were produced. Results are presented for dielectronic recombination resonances, resolving the hyperfine structure of stored lithiumlike scandium ions and obtaining precise results for the fine structure splitting of these ions, and for ro-vibrational resonances in the recombination of electrons with hydrogen molecular ions, revealing sharp structures down to 2 meV. An overview of the cryogenic storage ring (CSR) project in Heidelberg is given.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of D. Zajfman/Atomic and Molecular Physics with Stored Ions (A. Wolf)
MPI für Kernphysik/Group of D. Zajfman/Acceleration and Storage Techniques (R. v. Hahn, R. Repnow, M. Grieser)
External Affiliations:Univ Stockholm, S-10691 Stockholm, Sweden
Univ Havre, Fac Sci Technol, Le Havre, France
Univ Giessen, Inst Atom & Mol Phys, D-35392 Giessen, Germany
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