After a survey of the literature, this work deals with the current vs voltage characteristics of a low-temperature analytical hollow-cathode discharge tube provided with a rode anode and operated at different helium and argon pressures. First, the pre-burning process has been investigated and the observed phenomena are discussed. The current vs. voltage characteristics have been determined at different electrode gap widths and for a configuration in which the anode is inserted into the hollow cathode. The current-voltage curves have also been compared with the characteristics of a low-temperature plane-cathode discharge. Optimum conditions of a "true" hollow cathode discharge are given and an attempt is made to explain the results obtained in the present study.
ASJC Scopus subject areas
- Analytical Chemistry
- Atomic and Molecular Physics, and Optics