Numerical simulation of subpicosecond laser plasma x-ray emission

Journal Article · Thu Feb 01 04:00:00 EST 1996 · Journal of the Optical Society of America, Part B: Optical Physics

DOI:https://doi.org/10.1364/JOSAB.13.000402· OSTI ID:285884

Andreev, A A; Kurnin, I V ^[1]

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1. Research Institute for Laser Physics, Vavilov Optical Institute, 12 Birzhevaya Line, St. Petersburg, (Russia) 199034

A one-dimensional hydrodynamic code, ION, which takes ionization kinetics into account, was elaborated and used for the calculation of x-ray emission from plasma produced by the action of a subpicosecond laser pulse onto a solid target in vacuum. Calculated intensities for aluminum target emission are in agreement with experimental and theoretical results of other authors. The simple model gives the correct qualitative description of plasma x-ray emission for the given experimental parameters. The influence of fast electrons on the rate of subpicosecond laser plasma ionization is ascertained. It is shown that x-ray emission intensity depends on laser plasma shape; for the pulse with a more abrupt forward front the intensity is diminished. {copyright} {ital 1996 Optical Society of America.}

• Research Organization: Princeton Plasma Physics Laboratory
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 285884
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics, Journal Name: Journal of the Optical Society of America, Part B: Optical Physics Journal Issue: 2 Vol. 13; ISSN JOBPDE; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON TEMPERATURE
LASER-PRODUCED PLASMA
PLASMA DENSITY
PULSED IRRADIATION
SOFT X RADIATION
X-RAY EMISSION ANALYSIS
X-RAY LASERS