Stagnation and interpenetration of laser-created colliding plasmas

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860457· OSTI ID:7205619

Pollaine, S M; Berger, R L; Keane, C J ^[1]

---

1. Physics Department, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

An experiment that observed the collision of aluminum laser produced (Al) and magnesium (Mg) plasmas is described in an accompanying paper (Phys. Fluids B {bold 4}, (spec. char. missing)(spec. char. missing)(spec. char. missing)(spec. char. missing) (1992)). Time- and space-resolved measurements were made of the electron density, Ly{sub {alpha}} and He{sub {alpha}} lines of Al and Mg, and x-ray pinhole images. These measurements are interpreted with the use of a two ion fluid hydrodynamic model and a time-dependent atomic physics model. The qualitatively successful modeling of the line emission confirms that at early times, the Al interpenetrates the counterstreaming Mg plasma and deposits in the dense Mg region. At late times, the Al plasma stagnates against the Mg plasma, approximately halfway between the initial disk surfaces.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7205619
• Journal Information: Physics of Fluids B; (United States), Vol. 4:4; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
LASER-PRODUCED PLASMA
COLLISIONS
MAGNESIUM
ABLATION
ELECTRON DENSITY
ELECTRON TEMPERATURE
EMISSION SPECTRA
HYDRODYNAMICS
INERTIAL CONFINEMENT
STAGNATION
X-RAY SPECTROSCOPY
ALKALINE EARTH METALS
CONFINEMENT
ELEMENTS
FLUID MECHANICS
MECHANICS
METALS
PLASMA
PLASMA CONFINEMENT
SPECTRA
SPECTROSCOPY
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)