Correlation of cathode parameters of high power grid tubes with material characteristics of cathode-grid units

摘要

One way to increase the longevity of dispenser cathodes is based on reducing the Barium evaporation. This can be achieved by the decrease of the reaction "activity" of the emitter impregnant with the porous tungsten (W) body, which supplies free Barium from the interior of the porous cathode to its surface. (c) 2005 Elsevier B.V. All rights reserved.