X-ray source with cold emitter fabricated using ZnO conductive whiskers

被引：0

作者：

Ooki, Satoshi ^{[1
]}

Ohshio, Shigeo ^{[1
]}

Nishino, Junichi ^{[2
]}

Ohkawara, Yoshiaki ^{[1
,3
]}

Ito, Haruhiko ^{[1
]}

Saitoh, Hidetoshi ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Mat Sci, Nagaoka, Niigata 9402188, Japan

[2] Fukui Natl Coll Technol, Fukui 9168507, Japan

[3] Ookawara Mfg, Takasaki, Gunma, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2008年 / 47卷 / 09期

关键词：

field emission; ZnO; whisker; X-ray; CVD;

D O I：

10.1143/JJAP.47.7303

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new structute for the surface illuminant X-ray source system using low-cost aluminum-doped zinc oxide (ZnO:Al) whisker cold emitter is proposed and a prototype setup is introduced. The X-ray source was fabricated using a cold cathode that consists of an aggregation of conductive ZnO:Al whiskers. The ZnO:Al whiskers were deposited on an n-type single crystalline wafer of silicon by an atmospheric chemical-vapor-deposition method. The electron emission current from the ZnO:Al whiskers varied with the Al concentration of ZnO. The diode and triode X-ray sources generated X-rays from the tungsten used as an anode. X-ray images of a leaf and a small sardine were taken on medical X-ray films. Clear X-ray images were obtained.

引用

页码：7303 / 7307

页数：5

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