Wavelengths and energy levels for Ge xxiv, Ge xxv, and Ge xxvi observed in plasmas produced by line-focus laser irradiation

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Journal of the Optical Society of America B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.6.001652· OSTI ID:5418960

Feldman, U; Ekberg, J O; Brown, C M; Seely, J F ^[1]

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1. E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D.C. 20375-5000 (US)

Transitions in Ge xxiv, Ge xxv, and Ge xxvi were observed in the spectra emitted from linear plasmas that were produced by irradiating planar targets using eight line-focused beams of the Omega laser. A 3-m grazing-incidence spectrograph viewed the plasma in the axial direction. The spectral lines were quite narrow owing to the reduced ion motion along the line of sight. Transitions of the type 2{ital s}{sup 2}2{ital p}{sup {ital j}}--2{ital s}2{ital p}{sup {ital j}+1} (where {ital j}=3, 4, 5) and 2{ital s}2{ital p}{sup {ital k}}{minus}2{ital p}{sup {ital k}+1} (where {ital k}=4, 5) were observed in the first through fifth spectral orders. The wavelengths were measured with an uncertainty of less than 0.010 A, and the energy levels were determined with an uncertainty smaller than 100 cm{sup {minus}1}.

• OSTI ID: 5418960
• Journal Information: Journal of the Optical Society of America B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America B: Optical Physics; (USA) Vol. 6:9; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ATOMIC IONS
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
GERMANIUM IONS
IONIZING RADIATIONS
IONS
LASER-PRODUCED PLASMA
LASERS
MULTICHARGED IONS
OMEGA FACILITY
PLASMA
RADIATIONS
SOFT X RADIATION
SPECTRA
WAVELENGTHS
X RADIATION
X-RAY LASERS