Fast and Stable Operation of Carbon Nanotube Field-Emission X-Ray Tubes Achieved Using an Advanced Active-Current Control

被引：31
|
作者：
Kang, Jun-Tae [1 ,2 ]
Lee, Hyeong-Rag [1 ]
Jeong, Jin-Woo [2 ]
Kim, Jae-Woo [2 ]
Park, Sora [2 ]
Shin, Min-Sik [3 ]
Yeon, Ji-Hwan [2 ]
Jeon, Hyojin [3 ]
Kim, Sung-Hee [2 ]
Choi, Young Chul [2 ]
Song, Yoon-Ho [2 ,3 ]
机构：
[1] Kyungpook Natl Univ, Dept Phys, Taegu 702701, South Korea
[2] Elect & Telecommun Res Inst, Nano Electron Source Creat Res Ctr, Taejon 305700, South Korea
[3] Univ Sci & Technol, Sch Adv Device Engn, Taejon 305350, South Korea
来源：
IEEE ELECTRON DEVICE LETTERS | 2015年 / 36卷 / 11期
关键词：
Carbon nanotube; field emission; x-ray source; active-current control; fast and stable operation;
D O I：
10.1109/LED.2015.2478157
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 advanced active-current control (ACC) with a push-up voltage source is proposed for the fast operation of carbon nanotube (CNT) field-emission x-ray tubes while preserving the advantages of improved stability and reliability. The push-up voltage source, composed of a voltage supply and a resistor, was found to reduce markedly the response time of CNT x-ray tubes down to several tens nanoseconds. The very fast operation of CNT x-ray tube with the advanced ACC could provide an improved x-ray imaging technology, including high-speed scanning and blur-less imaging.
引用
收藏
页码：1209 / 1211
页数：3
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