Measurement of the Ionization State and Electron Temperature of Plasma during the Ablation Stage of a Wire-Array Z Pinch Using Absorption Spectroscopy

Journal Article · Fri Jun 03 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.225005· OSTI ID:21538390

Ivanov, V V; Hakel, P; Mancini, R C; Anderson, A; Durmaz, T; Wiewior, P; Papp, D; Altemara, S D; Astanovitskiy, A L; Chalyy, O ^[1]; Chittenden, J P ^[2]

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1. Department of Physics, University of Nevada, Reno, Nevada 89557 (United States)
2. Blackett Laboratory, Imperial College, London SW7 2BZ (United Kingdom)

Wire-array plasmas were investigated in the nonradiative ablation stage via x-ray absorption spectroscopy. A laser-produced Sm plasma was used to backlight Al wire arrays. The Sm spectrum was simultaneously observed by two spectrometers: one recorded the unattenuated spectrum and the other the transmission spectrum with 1.45-1.55 keV K-shell absorption lines. Analysis of absorption spectra revealed electron temperature in the range of 10-30 eV and the presence of F-, O-, N- and C-like Al ions in the absorbing plasma. A comparison of this electron temperature with the postprocessed absorption spectra of a 2D MHD simulation yields results in general agreement with the data analysis.

• OSTI ID: 21538390
• Journal Information: Physical Review Letters, Vol. 106, Issue 22; Other Information: DOI: 10.1103/PhysRevLett.106.225005; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
ALUMINIUM IONS
ELECTRON TEMPERATURE
EV RANGE 10-100
K SHELL
KEV RANGE 01-10
LASERS
MAGNETOHYDRODYNAMICS
PLASMA
SIMULATION
TRANSMISSION
WIRES
X-RAY SPECTROSCOPY
CHARGED PARTICLES
ELECTRONIC STRUCTURE
ENERGY RANGE
EV RANGE
FLUID MECHANICS
HYDRODYNAMICS
IONS
KEV RANGE
MECHANICS
SPECTRA
SPECTROSCOPY