| 摘要 |
FIELD: electronics; electron beam generation. SUBSTANCE: electron beam is produced by irradiating cathode with electromagnetic waves using laser beam for the purpose; electron beam produced in the process is passed through one magnetic lens whose poles are disposed along electron current, two monopolar condensing lenses, and two bipolar ones; monopolar condensing lens first from cathode is positively charged and other one is charged negatively; first and second bipolar lenses are installed in relatively perpendicular directions for mechanical correction of their relative position. Electron beam produced in the process is distinguished by electrons of actually equal kinetic energies and pulses. EFFECT: minimized chromatic aberration; enhanced resolution of optoelectronic system. 1 cl, 1 dwg
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