ELECTRIC FIELD AGING METHOD FOR ELECTRON EMITTER

摘要

An electric field aging method for an electron emitter is provided for stabilizing electron emission property and life property of the electron emitter. An electron emitter (10) has a plurality of fine protruding sections (14) for emitting electrons by electric field application. The aspect ratios of the fine protruding sections (14) as a whole are made uniform and portions locally unstable are removed by permitting each of the fine protruding sections (14) to perform selective field evaporation.