DEVICE FOR FIELD-EMISSION HOMOGENEITY DEGREE DETERMINATION FROM EMISSION MEDIUM SURFACE Russian patent published in 2016 - IPC H01J43/00 B82B3/00 

FIELD: electronics.

SUBSTANCE: invention relates to electronic equipment and intended for use in research and development of field-emission media creating structural-technological methods, including media, which field emission process is activated by electromagnetic radiation of optical or radio-frequency ranges. In particular, said device is necessary for research and development of technologies and structures of high-voltage and high-current field radiating cathodes, for studying of degradation processes flowing therein. This is achieved by combining of optical and field-emission units within single vacuum-tight design, which joint operation is based on integration of such number of physical processes, as electrons field emission, electrons photoelectric emission driven by electric field, and cathode luminescence.

EFFECT: technical result is possibility to study field emission processes statics and dynamics in “on-line” mode, emission homogeneity degree determination from field-emission media surface with resolution of not less than 50-100 mqm, study of degradation processes dynamic and static, correlation relationships between degradation of electrical characteristics and morphological changes of field radiating cathodes surface.

1 cl, 4 dwg