A double-sided radiating flat-panel X-ray source using ZnO nanowire field emitters

被引：39

作者：

Chen, Daokun ^{[1
]}

Xu, Yuan ^{[2
]}

Zhang, Guofu ^{[1
]}

Zhang, Zhipeng ^{[1
]}

She, Juncong ^{[1
]}

Deng, Shaozhi ^{[1
]}

Xu, Ningsheng ^{[1
]}

Chen, Jun ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangdong Prov Key Lab Display Mat & Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[2] Southern Med Univ, Sch Biomed Engn, Guangzhou 510515, Guangdong, Peoples R China

来源：

VACUUM | 2017年 / 144卷

关键词：

Flat-panel X-ray source; Field emission; ZnO nanowires; Double-sided radiating; ELECTRON-EMISSION; CARBON NANOTUBES; IRRADIATION; LITHOGRAPHY;

D O I：

10.1016/j.vacuum.2017.08.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A double-sided radiating flat-panel X-ray source device has been developed. The device has a diode configuration composed of an anode target of a tungsten thin film and field-emitter arrays of ZnO nanowires prepared on glass substrates. The X-ray radiation comes from both transmission and reflection of X-rays induced by electron bombardment. When operated at 24 kV with an anode current of 3.16 mA, radiation dose rates of similar to 200 mGy/min and similar to 210 mGy/min were recorded positioning at 4 cm away from the front and back sides of the vacuum-sealed flat-panel X-ray source, respectively. Clear X-ray images with high contrast were taken by the radiation from both sides of the device. The reported device has great potential in making compact X-ray radiography and irradiation systems. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：266 / 271

页数：6

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