NDLI: X-ray absorption spectroscopy of X-pinch plasmas

Content Provider	IEEE Xplore Digital Library
Author	Pikuz, S.A. Shelkovenko, T.A. Hoyt, C.L. Cahill, A.D. Hammer, D.A. Tilikin, I.N.
Copyright Year	2013
Description	Author affiliation: P.N. Lebedev Phys. Inst., Moscow, Russia (Tilikin, I.N.) \|\| Cornell Univ., Ithaca, NY, USA (Pikuz, S.A.; Shelkovenko, T.A.; Hoyt, C.L.; Cahill, A.D.; Hammer, D.A.)
Abstract	Summary form only given. X-ray absorption spectroscopy is a powerful diagnostic technique for determining the charge state, temperature and density of plasmas under a wide range of conditions and situations. It has been employed recently to study the core-corona system generated in electrically exploded wires and wire array Z-pinches. Using an X-pinch as the source of probing radiation and a spherically bent quartz crystal as the spectral analyzer as in those experiments required the object to be uniformly elongated in one direction. The important central part of an X-pinch is localized in the limited space and so, to probe it using x-ray radiation from an auxiliary source, a complicated focusing x-ray optical scheme must be used and is under development now. In the work reported here, we observed “self-absorption” spectra of hybrid X-pinches (HXP) when the continuum radiation from the X-pinch hot spot is absorbed in the surrounding hot spot plasmas or in the trailing material of the X-pinch neck. To extend the choice of materials that can be used in HXPs we developed hollow tube loads that are filled by powder or fine grains of salt. We have tested twisted Al wires wetted with the melt sulfur and single Ti and Mo wires covered by mixtures of epoxy or super-glue with $CaCl_{2}$ salt grains. Using ELICS and Johann spectrographs we recorded intense K-shell spectra containing both emission and absorption spectral lines. Plasma parameters were estimated using Prizm program.
Starting Page	1
Ending Page	1
File Size	119810
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6635137
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wires Spectroscopy Absorption Materials Educational institutions Plasma temperature
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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X-ray absorption spectroscopy of exploding Al wire plasmas using X-pinch radiation sources

Time resolved dynamics of X-pinch plasmas

Visible spectroscopy characterization of aluminum X pinch plasmas

X-ray backlighting of wire expansion and plasma merging of z-pinch load with 10-40kA/wire

Investigation of initial stage of hybrid X pinches

X-pinch experiments on the UM 1-MA linear transformer driver

Absolute Spectral Radiation from 200-ns X-pinch Plasma

Development of z-pinch laser diagnostics at the Zebra generator

Observations of the plasma in a two-wire Z-pinch

X-ray absorption spectroscopy of X-pinch plasmas

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X-ray backlighting of wire expansion and plasma merging of z-pinch load with 10-40kA/wire

Investigation of initial stage of hybrid X pinches

X-pinch experiments on the UM 1-MA linear transformer driver

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Development of z-pinch laser diagnostics at the Zebra generator

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