Title :
Electron emission simulation of carbon nanotube emitter with multi electrode for micro focused x-ray source
Author :
Lee, Seung Ho ; Ryu, Je Hwang ; Park, Kyu Chang ; Park, Hun Kuk
Author_Institution :
Dept. of Biomed. Eng., Kyung Hee Univ., Seoul, South Korea
Abstract :
An optimized multi-electrode type compact x-ray is developed using the COMSOL Multi-physics. To adjust various parameters inspected the effects on the minimum F.S.S. at the anode electrode. The four parameters (electrode voltage, electrode thickness, electrode distance, focusing electrode) studied for optimized structure. These results are used to develop an optimized CNT x-ray source. Micro Focused CNT x-ray source will be applied for medical imaging.
Keywords :
X-ray apparatus; anodes; carbon nanotubes; electron emission; C; COMSOL multiphysics; FSS; anode electrode distance; anode electrode thickness; anode electrode voltage; carbon nanotube emitter; electron emission simulation; focusing electrode; medical imaging; microfocused CNT X-ray source; optimized CNT X-ray source; optimized multielectrode type compact X-ray source; Anodes; Carbon nanotubes; Focusing; Logic gates; Minimization; X-ray imaging; Carbon nanotube; Micro focused x-ray;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2012 25th International
Conference_Location :
Jeju
Print_ISBN :
978-1-4673-1983-6
Electronic_ISBN :
pending
DOI :
10.1109/IVNC.2012.6316939
