The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.
Stable Plasma Jet for Excitation of Solutions
Volume 15, Number 5 (Sept. 1961) Page 150-152
Owen, Louis E.
The plasma jet, as adapted for the spectrochemical excitation of solutions and used with a photoelectric spectrometer to measure light intensities, provided coefficients of variation of one to two percent (1). A significant portion of the error was attributed to discharge instability. The swirling flow of gas surrounding the jet "flame" at the cathode forces the arc to make electrical contact to the cathode by an arc streamer. It is this streamer moving randomly over the cathode surface which makes the discharge unstable. It appeared that stabilization of the electrical path to give excitation position stability would be necessary to improve the precision of the plasma jet as an excitation source (2).