TIME AND SPACE-RESOLVED OBSERVATION OF POPULATION-INVERSION IN HELIUM-LIKE ALUMINUM PLASMA

Authors
ORIMO S OZAKI T ITATANI J KANAI T ZHU CJ LIANG JQ KURODA H
Citation
S. Orimo et al., TIME AND SPACE-RESOLVED OBSERVATION OF POPULATION-INVERSION IN HELIUM-LIKE ALUMINUM PLASMA, Progress in crystal growth and characterization of materials, 33(1-3), 1996, pp. 289-292
Citations number
8
Categorie Soggetti
Crystallography,"Materials Science, Characterization & Testing
Journal title
Progress in crystal growth and characterization of materials → ACNP
ISSN journal
09608974
Volume
33
Issue
1-3
Year of publication
1996
Pages
289 - 292
Database
ISI
SICI code
0960-8974(1996)33:1-3<289:TASOOP>2.0.ZU;2-L
Abstract
Time and/or space-resolved spectra of laser produced aluminium (Al) pl asma are observed using a framing crystal x-ray spectrometer. A massiv e slab Al target is irradiated try the second harmonic laser pulse fro m a Nd:Glass laser system. The pump energy is similar to 15J, and the peak intensity is 8.5 (+/- 0.9) x 10(14) W/cm(2). Population inversion s are observed between the 3-2 and 4-3 principle levels of He-like Al plasma farther than 150 mu m from the target surface. Opacity and esca pe factors are estimated from the mismatch of electron densities deduc ed from two different line pair ratios.