DEMOUNTABLE CATHODE GLOW DISCHARGE TUBE, PARTICULARLY FOR SELF-ALIGNING SPECTROSCOPIC DEVICES

摘要

In a self-aligning spectroscopic device of the glow discharge type, the cathode of a glow discharge tube is formed with a hollow beryllium copper cylinder which is removably seated within the cathode cavity about the tubular beryllium copper anode of the glow discharge tube. The exterior wall of the anode and the interior wall of the cylinder forms a cavity which contains a gaseous discharge medium.