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Conference Paper
A High-Performance Carbon Nanotube-based Field Emission X-ray Tube for Commercial Dental Imaging
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- Authors
- Sora Park, Jin-Woo Jeong, Jae-Woo Kim, Jun-Tae Kang, Ji-Hwan Yeon, Min-Sik Shin, Sunghee Kim, Eunsol Go, Hyojin Jeon, Young Chul Choi, Yoon-Ho Song
- Issue Date
- 2016-07
- Citation
- International Vacuum Nanoelectronics Conference (IVNC) 2016, pp.1-2
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- We developed a fully vacuum-sealed carbon nanotube (CNT)-based field emission x-ray tube with commercial-level performance for dental imaging application. The CNT x-ray tube was designed in a triode configuration with the focus-functional gate and had a compact size, much smaller than the conventional hot-cathode tubes. The small size of CNT x-ray tubes along with no cathode heating enables us to make a very compact portable dental imaging system. We have obtained a quite good x-ray image of a human tooth phantom by operating the CNT x-ray tube in an anode voltage of 65 kV, an emission current of 3 m A, and a pulse duration of 0.5 s, which is comparable to that of the conventional commercial hot-cathode tube.
- KSP Keywords
- Anode voltage, Carbon nano-tube(CNT), Cathode heating, Compact size, Dental imaging, Field Emission, Functional gate, High performance, Pulse duration, X-ray images, emission current