상세정보
학술대회
A Novel Vacuum-sealed Field Emission X-ray Tube with Graphene-gated Carbon Nanotube Emitters
- 발행일
- 201807
- 출처
- International Vacuum Nanoelectronics Conference (IVNC) 2018, pp.1-2
- 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.
- KSP 제안 키워드
- Carbon nano-tube(CNT), Carbon nanotube emitters, Electron Beam, Field emission performance, High Temperature, Vacuum chamber, fully vacuum-sealed, multilayer graphene(MLG), thermal durability, x-ray tube