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Subshell-selective x-ray studies of radiative recombination of U92+ ions with electrons for very low relative energies

Radiative recombination (RR) into the K shell and L subshells of U92+ ions interacting with cooling electrons has been studied in an x-ray RR experiment at the electron cooler of the Experimental Storage Ring at GSI. The measured radiative recombination rate coefficients for electron-ion relative en...

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Bibliographic Details
Main Authors: Banaś, Dariusz (Author) , Tashenov, Stanislav (Author)
Format: Article (Journal)
Language:English
Published: 13 July 2015
In: Physical review. A, Atomic, molecular, and optical physics
Year: 2015, Volume: 92, Issue: 3
ISSN:1094-1622
DOI:10.1103/PhysRevA.92.032710
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.92.032710
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.92.032710
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Author Notes:D. Banaś, M. Pajek, A. Surzhykov, Th. Stöhlker, C. Brandau, A. Gumberidze, C. Kozhuharov, H.F. Beyer, S. Böhm, F. Bosch, M. Czarnota, S. Chatterjee, J.-Cl. Dousse, S. Fritzsche, S. Hagmann, D. Liesen, P. H. Mokler, A. Müller, A. Kumar, R. Reuschl, D. Sierpowski, U. Spillmann, J. Szlachetko, S. Tashenov, S. Trotsenko, P. Verma, and A. Warczak
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Summary:Radiative recombination (RR) into the K shell and L subshells of U92+ ions interacting with cooling electrons has been studied in an x-ray RR experiment at the electron cooler of the Experimental Storage Ring at GSI. The measured radiative recombination rate coefficients for electron-ion relative energies in the range 0-1000 meV demonstrate the importance of relativistic effects. The observed asymmetry of the measured K-RR x-ray emission with respect to the cooling energy, i.e., zero average relative velocity (⟨vrel⟩=0), are explained by fully relativistic RR calculations. With our new approach, we show that the study of the angular distribution of RR photons for different relative energies opens new perspectives for detailed understanding of the RR of ions with cooling electrons in cold magnetized plasma.
Item Description:Im Titel ist 92+hochgestellt
Gesehen am 30.07.2020
Physical Description:Online Resource
ISSN:1094-1622
DOI:10.1103/PhysRevA.92.032710

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