Observation of extreme ultraviolet transitions in highly charged Ba{sup 16+} to Ba{sup 23+} ions with electron beam ion trap

Journal Article · Tue Mar 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4943962· OSTI ID:22599074

Ali, S.; Shimizu, E.; Nakamura, N. ^[1]

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1. Institute for Laser Science, The University of Electro-Communications, Tokyo 182-8585 (Japan)

We have investigated extreme ultraviolet emission from highly charged barium using a compact electron beam ion trap at the Tokyo EBIT laboratory. The spectra were recorded for several beam energies ranging from 440 to 740 eV, while keeping the electron beam current constant at 10 mA. Radiation from charge states Zr-like Ba{sup 16+} to As-like Ba{sup 23+} were recorded and identified by varying the electron beam energy across the ionization thresholds and comparing with calculated results. The calculations were performed with a detailed relativistic configuration interaction approach using the Flexible Atomic Code. Several new lines belonging to electric dipole transitions were observed and identified.

• OSTI ID: 22599074
• Journal Information: Physics of Plasmas, Vol. 23, Issue 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARIUM
BARIUM IONS
BEAM CURRENTS
CHARGE STATES
COMPARATIVE EVALUATIONS
CONFIGURATION INTERACTION
E1-TRANSITIONS
ELECTRIC DIPOLES
ELECTRON BEAMS
ELECTRONS
EXTREME ULTRAVIOLET RADIATION
IONIZATION
RELATIVISTIC RANGE
SPECTRA
TRAPS