CHARGED PARTICLES EMITTER Russian patent published in 1999 - IPC

FIELD: electronic engineering; intensive electron and ion current sources. SUBSTANCE: emitter that can function as source of high- power electron and ion currents both in pulsed and constant emission modes has substrate and insulating fine-structure screen in the form of film with through channels, as well as conducting layer placed between mentioned channels. Novelty is that conducting layer is made of liquid metal or metal alloy filling also through channels of film. Conducting layer may be made of gallium, gallium and indium alloy, potassium and sodium alloy taken in 1:1.45:1.55 proportion, or it may be mercury. Substrate may be provided with fillets on edges. Film may be made of mica, quartz, or polymeric material such as polyethylene terephthalate. EFFECT: improved stability of emissive properties of emitter. 10 cl, 6 dwg