상세정보
학술대회
A Carbon Nanotube Field Emitter Formed on W-wire with High Current Density for X-ray Source
- 발행일
- 201010
- 출처
- International Vacuum Electron Sources Conference and Nanocarbon (IVESC) 2010, pp.313-314
- 협약과제
- 10MB4100, 구내 병변 자동진단용 다방향 강내형 X선 영상 시스템 개발, 송윤호
- 초록
- Field emission micro-focus x-ray source based on carbon nanotube (CNT) has attractive features for biomedical or clinical imaging [1]. X-ray sources for micro-focus and/or miniature tube types require a mini-sized, high-density emission current in the order of 102~103 mA/cm 2. We have previously reported that the optimized paste composition with a nano-scale metal filler enhanced adhesion between CNT emitter and cathode electrode at low temperature [2]. In this study, a CNT-on-Tip cathode, having CNT emitter on a tungsten (W) wire of 100 μm in diameter, was developed in order to increase emission current density. © 2010 IEEE.
- KSP 제안 키워드
- Carbon nano-tube(CNT), Carbon nanotube field emitter, Cathode electrode, Emission current density, Enhanced adhesion, High-density, Low temperature(LT), Metal filler, Micro-focus x-ray, Source field, X-ray sources