Journalartikel
Autorenliste: Zhu, B.; Gumberidze, A.; Over, T.; Weber, G.; Andelkovic, Z.; Bräuning-Demian, A.; Chen, R. J.; Dmytriiev, D.; Forstner, O.; Hahn, C.; Herfurth, F.; Herdrich, M. O.; Hillenbrand, P-M; Kalinin, A.; Kröger, F. M.; Lestinsky, M.; Litvinov, Yu A.; Menz, E. B.; Middents, W.; Morgenroth, T.; Petridis, N.; Pfäfflein, Ph; Sanjari, M. S.; Sidhu, R. S.; Spillmann, U.; Schuch, R.; Schippers, S.; Trotsenko, S.; Varga, L.; Vorobyev, G.; Stöhlker, Th
Jahr der Veröffentlichung: 2022
Zeitschrift: Physical review A
Bandnummer: 105
Heftnummer: 5
ISSN: 2469-9926
eISSN: 2469-9934
Open Access Status: Hybrid
DOI Link: https://doi.org/10.1103/PhysRevA.105.052804
Verlag: American Physical Society
Abstract:
For decelerated bare lead ions at a low beam energy of 10 MeV/u, the x-ray emission associated with radiative recombination (RR) at threshold energies has been studied at the electron cooler of CRYRING@ESR at GSI, Darmstadt. In our experiment, we observed the full x-ray emission pattern by utilizing dedicated x-ray detection chambers installed at 0??? and 180??? observation geometry. Most remarkably, no line distortion effects due to delayed emission are present in the well-defined x-ray spectra, spanning a wide range of x-ray energies (from about 5 to 100 keV), which enables us to identify fine-structure resolved Lyman, Balmer, and Paschen x-ray lines along with the RR transitions into the K, L, and M shells of the ions. For comparison with theory, an elaborate theoretical model is established taking into account the initial population distribution via RR for all atomic levels up to Rydberg states with principal quantum number n = 165 in combination with time-dependent feeding transitions. Within the statistical accuracy, the experimental data are in very good agreement with the results of rigorous relativistic predictions. 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.
Zitierstile
Harvard-Zitierstil: Zhu, B., Gumberidze, A., Over, T., Weber, G., Andelkovic, Z., Bräuning-Demian, A., et al. (2022) X-ray emission associated with radiative recombination for Pb82+ ions at threshold energies, Physical review A, 105(5), Article 052804. https://doi.org/10.1103/PhysRevA.105.052804
APA-Zitierstil: Zhu, B., Gumberidze, A., Over, T., Weber, G., Andelkovic, Z., Bräuning-Demian, A., Chen, R., Dmytriiev, D., Forstner, O., Hahn, C., Herfurth, F., Herdrich, M., Hillenbrand, P., Kalinin, A., Kröger, F., Lestinsky, M., Litvinov, Y., Menz, E., Middents, W., ...Stöhlker, T. (2022). X-ray emission associated with radiative recombination for Pb82+ ions at threshold energies. Physical review A. 105(5), Article 052804. https://doi.org/10.1103/PhysRevA.105.052804
Schlagwörter
ANGULAR-DISTRIBUTION; BARE IONS; CROSS-SECTIONS; DIELECTRONIC RECOMBINATION; ELECTRON-ION RECOMBINATION; HIGHLY-CHARGED IONS; LAMB-SHIFT; M SHELLS; STORAGE-RING; TRANSITION-PROBABILITIES
