학술논문
Dielectronic satellite emission from a solid-density Mg plasma: Relationship to models of ionization potential depression.
Document Type
Academic Journal
Author
Pérez-Callejo G; Departamento de Física Teórica Atómica y Óptica, Universidad de Valladolid, 47011 Valladolid, Spain.; Gawne T; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.; Preston TR; European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Germany.; Hollebon P; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.; Humphries OS; European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Germany.; Chung HK; Korea Institute of Fusion Energy (KFE), Daejeon 34133, South Korea.; Dakovski GL; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.; Krzywinski J; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.; Minitti MP; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.; Burian T; Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic.; Chalupský J; Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic.; Hájková V; Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic.; Juha L; Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic.; Vozda V; Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic.; Zastrau U; European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Germany.; Vinko SM; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.; Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom.; Rose SJ; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.; Plasma Physics Group, The Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, United Kingdom.; Wark JS; Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.
Source
Publisher: American Physical Society Country of Publication: United States NLM ID: 101676019 Publication Model: Print Cited Medium: Internet ISSN: 2470-0053 (Electronic) Linking ISSN: 24700045 NLM ISO Abbreviation: Phys Rev E Subsets: PubMed not MEDLINE; MEDLINE
Subject
Language
English
Abstract
We report on experiments where solid-density Mg plasmas are created by heating with the focused output of the Linac Coherent Light Source x-ray free-electron laser. We study the K-shell emission from the helium- and lithium-like ions using Bragg crystal spectroscopy. Observation of the dielectronic satellites in lithium-like ions confirms that the M-shell electrons appear bound for these high charge states. An analysis of the intensity of these satellites indicates that when modeled with an atomic-kinetics code, the ionization potential depression model employed needs to produce depressions for these ions which lie between those predicted by the well known Stewart-Pyatt and Ecker-Kroll models. These results are largely consistent with recent density functional theory calculations.