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A Novel Gate Structure for a Miniature X-Ray Tube Based on CNT Emitters
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- Authors
- Sungyoul Choi, Jun-Tae Kang, Jin-Woo Jeong, Jae-Woo Kim, Bumjong Kim, Dae-Jun Kim, Yoon-Ho Song
- Issue Date
- 2012-07
- Citation
- International Vacuum Nanoelectronics Conference (IVNC) 2012, pp.1-2
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- Carbon nano-tube(CNT), Electron beam, Field Emission, Focal spot, Focusing electrode, Functional gate, Miniature X-ray tube, emission current, focusing effect