Determination of electric field strength and kinetic temperature in the cathode fall region of a hollow cathode discharge

Abstract

In this work, we demonstrate the high potential of two-photon excitation of the 1S - 2S transition of atomic hydrogen followed by optogalvanic detection, for measuring under identical experimental conditions, the kinetic temperature and the electric field strength in the cathode sheath region of a hollow cathode discharge. The first obtained results for both parameters are discussed in this paper.