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Conference Paper
Analysis of CNT Emitter-Based Miniature X-Ray Tubes for Stable and Reliable Operation
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- Authors
- Jun-Tae Kang, Jae-Woo Kim, Sungyoul Choi, Jeongyong Choi, Jin-Woo Jeong, Seungjoon Ahn, Yoon-Ho Song
- Issue Date
- 2013-07
- Citation
- International Vacuum Nanoelectronics Conference (IVNC) 2013, pp.1-2
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- We analyzed the failure mechanism in miniature X-ray tubes with a gated carbon nanotube (CNT) field emitter. The miniature X-ray tube even with a small leakage current of field emission from the CNT emitters to the gate electrode has some distortion of the electron beam trajectory from the cathode to anode passage, causing a charging at insulating parts. The charging at the insulator spacer would lead to an arcing or coupling of the anode and gate electrodes, resulting in a very unstable operation and finally a fatal failure. © 2013 IEEE.
- KSP Keywords
- AND gate, Carbon nano-tube(CNT), Electron beam trajectory, Failure mechanisms, Field Emission, Leakage Current, Miniature X-ray tube, Small leakage, field emitter, gate electrode