High-Frequency Plasma Guns: Z-Pinch and Theta-Pinch Plasmas for Direct Solid Sampling AES

Abstract

We report here on the results of studies of plasma generation systems suitable for the creation of both z-pinch plasma gun discharges (axial current flow; electrodes) and theta-pinch plasma gun discharges (radial current flow; electrodeless). Two coils have been investigated for the production of a theta-pinch plasma gun and the results of studies utilizing aluminum foils and thin films for plasma generation will be presented. The results of electrical characterization studies of these discharges will be presented and discussed relative to plasma production efficiency. Prospect of using these discharges as direct solid sampling devices suitable for coupling with an ICP for AES detection.

1998 FACSS Conference; Austin, TX, U.S.A.