상세정보
등록 CNT를 이용한 삼극형 구조의 초소형 X선관
- 출원번호
- 12743496 (2008.11.13)
- 공개번호
- 20110116603 (2011.05.19)
- 등록번호
- 8300769 (2012.10.30)
- 출원국
- 미국
- 초록
- 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.