Polarization studies of radiative electron capture into highly-charged uranium ions

Recent advances in the development of 2D microstrip detectors open up new possibilities for hard x-ray spectroscopy, in particular for polarization studies. These detectors make ideal Compton polarimeters, which enable us to study precisely the polarization of hard x-rays. Here, we present recent re...

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Bibliographic Details
Published in:Journal of physics. Conference series 2009-04, Vol.163 (1), p.012072
Main Authors: Hess, S, Bräuning, H, Spillmann, U, Brandau, C, Geyer, S, Hagmann, S, Hegewald, M, Kozhuharov, C, Krings, T, Kumar, A, Märtin, R, Protic, D, O'Rourke, B, Reuschl, R, Trassinelli, M, Trotsenko, S, Weber, G, Winters, D F A, Stóhlker, T H
Format: Article
Language:English
Subjects:
Atomic Physics
Beta decay
Data analysis
Detectors
Electron capture
Ion beams
Linear polarization
Physics
Polarimeters
Uranium
X-rays
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Summary:Recent advances in the development of 2D microstrip detectors open up new possibilities for hard x-ray spectroscopy, in particular for polarization studies. These detectors make ideal Compton polarimeters, which enable us to study precisely the polarization of hard x-rays. Here, we present recent results from measurements of Radiative Electron Capture into the K-shell of highly-charged uranium ions. The experiments were performed with a novel 2D Si(Li) Compton polarimeter at the Experimental Storage Ring at GSI. Stored and cooled beams of U91+ and U92+ ions, with kinetic energies of 43 MeV/u and 96 MeV/u respectively, were crossed with a hydrogen gasjet. The preliminary data analysis shows x-rays from the K-REC process, emitted perpendicularly to the ion beam, to be strongly linearly polarized.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/163/1/012072