A digital miniature x-ray tube with a high-density triode carbon nanotube field emitter

被引：78
|
作者：
Jeong, Jin-Woo [1 ]
Kang, Jun-Tae [1 ]
Choi, Sungyoul [1 ]
Kim, Jae-Woo [1 ,2 ]
Ahn, Seungjoon [1 ,3 ]
Song, Yoon-Ho [1 ,2 ]
机构：
[1] Elect & Telecommun Res Inst, Nano Electron Source Creat Res Ctr, Taejon 305700, South Korea
[2] Univ Sci & Technol, Sch Adv Device Engn, Taejon 305350, South Korea
[3] Sun Moon Univ, Dept Informat Display, Asan 336708, Chungnam, South Korea
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 02期
关键词：
ELECTRONIC BRACHYTHERAPY; DEVICE; BREAST;
D O I：
10.1063/1.4776222
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have fabricated a digital miniature x-ray tube (6mm in diameter and 32mm in length) with a high-density triode carbon nanotube (CNT) field emitter for special x-ray applications. The triode CNT emitter was densely formed within a diameter of below 4mm with the focusing-functional gate. The brazing process enables us to obtain and maintain a desired vacuum level for the reliable electron emission from the CNT emitters after the vacuum packaging. The miniature x-ray tube exhibited a stable and reliable operation over 250 h in a pulse mode at an anode voltage of above 25 kV. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4776222]
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页数：4
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