FIELD: electricity.
SUBSTANCE: carbon material used is glass carbon. Formation of emitters on the cathode surface is performed by milling with focused laser radiation and subsequent laser treatment of the cathode structure surface. Application of the emitting structure on the surface of the cathode emitters is performed by laser micro-engraving to form a field of micro-points of pyramidal shape with subsequent cutting of the cathode base with focused laser radiation and laser treatment of emitting structures.
EFFECT: improved technical characteristics of a field-emission cathode.
2 dwg
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