Soft-x-ray radiation from plasmas produced by obliquely incident subpicosecond laser pulses

Journal Article · Mon Oct 31 23:00:00 EST 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.R3334· OSTI ID:6846580

Teubner, U ^[1]; Theobald, W; Wuelker, C ^[2]; Foerster, E ^[1]

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1. Max-Planck-Arbeitsgruppe Roentgenoptik an der Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)
2. Max-Planck-Institut fuer Biophysikalische Chemie, Abteilung Laserphysik, Am Faberg, 37077 Goettingen (Germany)

Soft-x-ray spectra ([lt] 0.5 keV) from subpicosecond-laser-pulse-produced Al plasmas have been measured at a series of intensities up to 10[sup 17] W/cm[sup 2] and different angles of incidence. It was found that the spectra depended strongly on these parameters. Comparison of the spectra produced by [ital p]- and [ital s]-polarized 248 nm radiation showed that not only collisional but also other absorption mechanisms were present. These additional processes affected only the total amount of the generated [ital soft]-x-ray radiation but not the spectral shape and not the electron temperature.

• OSTI ID: 6846580
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 50:5; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ABSORPTION
ALUMINIUM
CHEMICAL ANALYSIS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY ABSORPTION
IONIZING RADIATIONS
LASER-PRODUCED PLASMA
METALS
NONDESTRUCTIVE ANALYSIS
PLASMA
POLARIZATION
RADIATIONS
SOFT X RADIATION
SORPTION
X RADIATION
X-RAY EMISSION ANALYSIS