Soft-x-ray radiation from plasmas produced by obliquely incident subpicosecond laser pulses
Journal Article
·
· Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)
- Max-Planck-Arbeitsgruppe Roentgenoptik an der Friedrich-Schiller-Universitaet Jena, Max-Wien-Platz 1, 07743 Jena (Germany)
- 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), Vol. 50:5; ISSN 1063-651X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
LASER-PRODUCED PLASMA
SOFT X RADIATION
ENERGY ABSORPTION
POLARIZATION
X-RAY EMISSION ANALYSIS
ABSORPTION
CHEMICAL ANALYSIS
ELECTROMAGNETIC RADIATION
ELEMENTS
IONIZING RADIATIONS
METALS
NONDESTRUCTIVE ANALYSIS
PLASMA
RADIATIONS
SORPTION
X RADIATION
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)
ALUMINIUM
LASER-PRODUCED PLASMA
SOFT X RADIATION
ENERGY ABSORPTION
POLARIZATION
X-RAY EMISSION ANALYSIS
ABSORPTION
CHEMICAL ANALYSIS
ELECTROMAGNETIC RADIATION
ELEMENTS
IONIZING RADIATIONS
METALS
NONDESTRUCTIVE ANALYSIS
PLASMA
RADIATIONS
SORPTION
X RADIATION
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)