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학술대회 A Novel Vacuum-sealed Field Emission X-ray Tube with Graphene-gated Carbon Nanotube Emitters
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저자
전효진, 고은솔, 이정웅, 안유정, 박소라, 김재우, 강준태, 정진우, 윤기남, 연지환, 김성희, 송윤호
발행일
201807
출처
International Vacuum Nanoelectronics Conference (IVNC) 2018, pp.1-2
DOI
https://dx.doi.org/10.1109/IVNC.2018.8520123
초록
Multilayer graphene-gated carbon nanotube (CNT) emitters are introduced to novel vacuum-sealed X-ray tubes. We characterized field emission performances and electron-beam (Ebeam) converging of the graphene-gated emitter in a vacuum chamber. Thermal durability of the graphene-gate was well achieved to apply it to X-ray tubes processed with brazing at a high temperature. A transmissive anode target with a Be window, ceramic insulators, and the graphene-gated CNT emitters were successfully brazed to a fully vacuum-sealed X-ray tube, maintaining an unique graphene-gated field emission performance.
키워드
carbon nanotube, field emission, multilayer graphene, thermal durability, X-ray source, X-ray tube
KSP 제안 키워드
Carbon nano-tube(CNT), Carbon nanotube emitters, Electron Beam, Field emission performance, High Temperature, Vacuum chamber, X-ray sources, fully vacuum-sealed, multilayer graphene(MLG), thermal durability, x-ray tube