%0 Journal Article
%A Zhu, B.
%A Gumberidze, Alexandre
%A Over, T.
%A Weber, G.
%A Andelkovic, Z.
%A Bräuning-Demian, A.
%A Chen, R. J.
%A Dmytriiev, D.
%A Forstner, Oliver
%A Hahn, Christoph
%A Herfurth, F.
%A Herdrich, Marc Oliver
%A Hillenbrand, Pierre-Michel
%A Kalinin, A.
%A Kröger, F. M.
%A Lestinsky, Michael
%A Litvinov, Yu. A.
%A Menz, Esther Babette
%A Middents, W.
%A Morgenroth, T.
%A Petridis, N.
%A Pfäfflein, Philip
%A Sanjari, M. S.
%A Sidhu, Ragandeep Singh
%A Spillmann, U.
%A Schuch, R.
%A Schippers, S.
%A Trotsenko, S.
%A Varga, Laszlo
%A Vorobyev, G.
%A Stöhlker, Thomas
%T X-ray emission associated with radiative recombination for Pb<sup>82+</sup> ions at threshold energies
%J Physical review / A
%V 105
%N 5
%@ 2469-9926
%C Woodbury, NY
%I APS
%M GSI-2022-00567
%M arXiv:2201.06977
%P 052804
%D 2022
%Z ISSN 2469-9934 not unique: **2 hits**. Supported by ERC under grant agreement # 6544002. Supported by BMBF under grant # 5P19SJFAA and 05P19RGFA1.
%X For bare lead ions, decelerated to the low beam energy of 10 MeV/u, the x-ray emission associated with radiative recombination (RR) at 'cold collision' conditions has been studied at the electron cooler of CRYRING@ESR at GSI-Darmstadt. Utilizing dedicated x-ray detection chambers installed at 0° and 180° observation geometry, we observed for the very first time for stored ions the full x-ray emission spectrum associated with RR under electron cooling conditions. Most remarkably, no line distortion effects due to delayed emission are present in the well resolved spectra, spanning over a wide range of x-ray energies (from about 5 to 100 keV) which enable to identify fine-structure resolved Lyman, Balmer as well as Paschen x-ray lines along with the RR transitions into the K-, L and M-shell of the ions. To compare with theory, an elaborate theoretical model has been applied. By considering the relativistic atomic structure of Pb<sup>81+</sup>, this model is based on a sophisticated computation of the initial population distribution via RR for all atomic levels up to Rydberg states with principal quantum number n= 165 in combination with cascade calculations based on time-dependent rate equations. Within the statistical accuracy, the experimental x-ray line emission is in very good agreement with the results of the theoretical model applied. Most notably, this comparison sheds light on the contribution of prompt and delayed X-ray emission (up to 70 ns) to the observed X-ray spectra, originating in particular from Yrast transitions into inner shells.
%K Atomic Physics (physics.atom-ph) (Other)
%K FOS: Physical sciences (Other)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000798848000011
%R 10.1103/PhysRevA.105.052804
%U https://repository.gsi.de/record/246562