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학술대회 A Novel Gate Structure for a Miniature X-Ray Tube Based on CNT Emitters
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저자
최성열, 강준태, 정진우, 김재우, 김범종, 김대준, 송윤호
발행일
201207
출처
International Vacuum Nanoelectronics Conference (IVNC) 2012, pp.1-2
DOI
https://dx.doi.org/10.1109/IVNC.2012.6316983
협약과제
11MB3300, 다방향 강내형 X선 영상시스템용 초소형 X선 튜브 개발, 송윤호
초록
We suggest a novel gate structure, Focusing-Functional Gate (FFG), having a focusing effect on the electron beams from the carbon nanotube (CNT) emitters for the miniature X-ray tubes. The FFG induced field emission from the CNT emitters and focused electron beams into the anode target without an additional focusing electrode, resulting in a small focal spot with little charging at the insulating body of the X-ray tube. We have successfully obtained a stable emission current and images from the miniature X-ray tube with the FFG. © 2012 IEEE.
KSP 제안 키워드
Carbon nano-tube(CNT), Electron Beam, Focusing effect, Focusing electrode, Functional gate, Miniature X-ray tube, emission current, field emission, focal spot