Magnetic Confinement and Control of Trajectories of Discharge Species in Atmospheric-Pressure Analytical Spark Discharges

Authors: Majidi, Vahid; Coleman, David M.

Source: Applied Spectroscopy, Volume 41, Issue 2, Pages 173-336 (February 1987) , pp. 200-207(8)

Publisher: Society for Applied Spectroscopy

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Abstract:

A series of experiments, designed to help characterize the behavior of an analytical spark discharge in an external pulsed magnetic field, is described. Results include controlled formation and deformation of a spark's post-discharge torus utilizing different magnetic field configurations. One manifestation of this research was discovery of a new filamentary structure which extends from the spark conducting channel to the magnet pole face(s). These features were investigated via their refracted light (Schlieren) and spectroscopic (time/space/wavelength-resolved) properties. Practical ramifications of this control are discussed.

Keywords: Atomic emission spectroscopy; Plasma confinement; Spark discharge

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370287774986859

Affiliations: 1: Department of Chemistry—175, Wayne State University, Detroit, Michigan 48202

Publication date: 1987-02-01

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