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Correlation of cathodes parameters of power grid tubes with materials characteristics of cathode-grid units

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3 Author(s)
Melnikova, I.P. ; Fed. State Unitary Enterprise NNP Almaz, Saratov, Russia ; Polyakov, I.V. ; Usanov, D.A.

Ways of raise of longevity are shown at decrease of evaporation of dispenser cathodes as a result of decrease of reaction "activity" of emitter impregnant with porous W body which has the certain carrying capacity of free Ba from volume of the cathode on its surface.

Published in:

Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International

Date of Conference:

6-10 Sept. 2004