The Design and Fabrication of Carbon-Nanotube-Based Field Emission X-Ray Cathode With Ballast Resistor

被引：15
|
作者：
Sun, Yonghai [1 ]
Jaffray, David A. [2 ]
Yeow, John T. W. [1 ]
机构：
[1] Univ Waterloo, Dept Syst Design Engn, Waterloo, ON N2L 3G1, Canada
[2] Princess Margaret Hosp, Dept Radiat Phys, Toronto, ON M5G 2M9, Canada
来源：
IEEE TRANSACTIONS ON ELECTRON DEVICES | 2013年 / 60卷 / 01期
关键词：
Ballast resistor; carbon nanotube (CNT); field emission; X-ray cathode; BRACHYTHERAPY;
D O I：
10.1109/TED.2012.2226036
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：464 / 470
页数：7
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