FILAMENT-TYPE CATHODE Russian patent published in 2009 - IPC H01J1/15 H01J35/06 

Abstract RU 2373602 C1

FIELD: physics.

SUBSTANCE: filament-type cathode is designed for vacuum-tube devices, particularly X-ray tubes. The cathode emitter is double-layered, where the support is made from refractory metal or alloy, and the electron-emitting layer is made from a metal with less work function than material of the support, doped with one of the components of the material of the support.

EFFECT: increased stability of emission characteristics and longer service life.

9 cl, 3 dwg

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RU 2 373 602 C1

Authors

Taubin Mikhail L'Vovich

Platonov Valentin Fedorovich

Jaskolko Anton Andreevich

Dates

2009-11-20Published

2008-04-29Filed