CNT를 이용한 삼극형 구조의 초소형 X선관
김대준, 송윤호, 정진우
- 8300769 (2012.10.30)
- A microminiature X-ray tube with a triode structure using a nano emitter is provided, which can increase a field emission region as much as possible by means of nano emitters fine-patterned in a cathode to not only increase an emission current per unit area as much as possible but secure high electrical characteristics, reliability, and structural stability by means of a cover and a bonding material. In addition, gate holes having a macro structure can be formed in the gate to promote electron beam focusing by means of the gate without using a separate focusing electrode and to prevent a leakage current from occurring on the gate. Further, an auxiliary electrode can be formed on a top or an inner surface of a cover applied for structural stability to further promote the electron beam focusing and to control the output amounts per individual X-ray tubes output.
- KSP 제안 키워드
- Auxiliary electrode, Bonding material, Electron Beam, Electron beam focusing, Focusing electrode, Inner surface, Leakage current, Structural stability, Triode structure, beam focusing, electrical characteristics, emission current, field emission, x-ray, x-ray tube