Title :
The Design and Fabrication of Carbon-Nanotube-Based Field Emission X-Ray Cathode With Ballast Resistor
Author :
Sun, Yonghai ; Jaffray, David A. ; Yeow, John T W
Author_Institution :
Dept. of Syst. Design Eng., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
The incorporation of a ballast resistor layer underneath field emitters can improve the reliability and stability of field emission cathodes. However, it has not been successfully demonstrated in carbon-nanotube (CNT)-based field emitters. In this paper, we introduce a fabrication process of a low-density vertically aligned CNT array with a ballast resistor layer. Furthermore, an X-ray tube prototype based on this cathode is demonstrated.
Keywords :
X-ray tubes; carbon nanotubes; cathodes; electron field emission; resistors; semiconductor device reliability; stability; vacuum microelectronics; CNT array; X-ray tube prototype; ballast resistor; carbon nanotube; design; fabrication; field emission X-ray cathode; field emitters; reliability; stability; Arrays; Cathodes; Electron tubes; Electronic ballasts; Fabrication; Resistance; Resistors; Ballast resistor; X-ray cathode; carbon nanotube (CNT); field emission;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2012.2226036
