Title

EVALUATION OF AC STABILIZATION OF A DC ARC LAMP FOR SPECTROSCOPIC APPLICATIONS.

Document Type

Article

Publication Date

6-1-1987

Abstract

Spectroscopic applications of the recently described method of arc lamp stabilization by the addition of a small alternating current (AC) to a direct current (DC) arc lamp are discussed. A possible explanation for the improved arc stability is presented. Evaluation of arc formation and spatial behavior is monitored by a series of still photographs of the arc image. Observation of the electrode surfaces in similar photographs provide insight into the distribution of heat in the interelectrode region. A photodiode array imaging device is used to accurately detect lateral movement of the arc image over prolonged time periods. Advantages of AC stabilized lamps in spectroscopic applications are also presented.

Publication Source (Journal or Book title)

Analytical Instrumentation

First Page

263

Last Page

274

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