Measurements of gain and line broadening in lithiumlike aluminum

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.39.6033· OSTI ID:6135793

Moreno, J C; Griem, H R; Goldsmith, S; Knauer, J

Spectroscopic measurements were made of lithiumlike Al emission lines from laser-produced plasmas. Flat targets, consisting of thin layers of Al coated on a Mylar backing, were irradiated with up to eight beams of the OMEGA laser system employing a line-focus configuration. The Al xi 4/ital f/-3/ital d/ line at 154.7 A exhibited a gain coefficient of 4.1+-1.2 cm/sup /minus/1/ from comparisons of line intensities from 3- and 6-mm-long plasmas. Similarly, the 4/ital d/-3/ital p/ line at 150.7 A and the 5/ital f/-3/ital d/ line at 105.7 A had gain coefficients of 4.5+-1.3 and 3.5+-0.8 cm/sup /minus/1/, respectively. The linewidth of the 5/ital f/-3/ital d/ line was measured to be 0.35 A, which is much larger than the expected Doppler and instrumental width and can be attributed to Stark broadening. This Stark broadening corresponds to an electron density of 3/times/10/sup 19/ cm/sup /minus/3/.

• Research Organization: Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742(US); Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299
• OSTI ID: 6135793
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 39:11; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALUMINIUM IONS
AMPLIFICATION
CHARGED PARTICLES
EMISSION SPECTRA
FEASIBILITY STUDIES
GAIN
IONS
LASER-PRODUCED PLASMA
LASERS
LINE BROADENING
NEODYMIUM LASERS
PLASMA
POPULATION INVERSION
SOLID STATE LASERS
SPECTRA
STARK EFFECT
X-RAY LASERS
X-RAY SPECTRA