First dielectronic recombination measurements with H-like uranium

C. Brandau, C. Kozhuharov, A. Muller, S. Schippers, K. Beckert, P. Beller, D. Bernhardt, F. Bosch, S. Bohm, Frederick Currell, B. Franzke, A. Gumberidze, Z. Harman, Z. Harman, J. Jacobi, P.H. Mokler, F. Nolden, W. Scheid, E.W. Schmidt, U. SpillmanZ. Stachura, M. Steck, T. Stohlker

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In this report we show first results on dielectronic recombination (DR) measurements with H-like uranium U91+. The experiments were conducted at the heavy ion storage ring ESR of GSI. The electron cooler of the ESR was used as a target for free electrons. Stochastic pre-cooling of the stored ion beam was employed in order to accomplish high-energy resolution at the necessary high electron-ion collision energies of more than 64 keV. For the DR of U91+ this novel technique enabled us to measure for the first time the KLL-DR process and even to resolve the individual j-j' fine structure components of the KLjLj' resonances. The experimental data are compared with fully relativistic Multi-Configuration Dirac-Fock (DR-MCDF) calculations. (c) 2006 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1763-1766
Number of pages4
JournalRadiation Physics and Chemistry
Issue number11 SPEC. ISS.
Publication statusPublished - Nov 2006

ASJC Scopus subject areas

  • Radiation


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