A vaccum-sealed miniature x-ray tube based on carbon nanotube field emitters

摘要

Carbon Nanotubes vacuum sealed miniature X-ray tube with an electron beam emitter is disclosed. Vacuum sealed small X-ray tube using the carbon nanotube electron beam emitter is provided with a focusing electrode formed in a cylindrical shape , the electron beam generating section for extracting an electron beam through the center of the inserted field emission type emitter in the focusing electrode ; One side and the electron beam generating unit is inserted, the focusing electrode surrounding the ceramic tube; The electron beam is provided in the direction in which the take-off , a transmission X-ray target consisting of a crash by the electron beam to generate a radiation therapy for the ionizing radiation in X-ray transmission window for emitting into the atmosphere ; Includes a cathode connected to a transmission disposed between the X-ray target and the ceramic tube . ;