Field-emission X-ray Sources with an Anisotropic Focusing Lens for Isotropic X-ray Focal Spots

被引：0

作者：

Jung, Sunshin ^{[1
]}

Chang, Won Suk ^{[1
]}

Kim, Beom Seok ^{[1
]}

Kim, Daeho ^{[1
]}

Seol, Seung Kwon ^{[1
]}

Park, Kyu Chang ^{[2
]}

Lee, Yang Doo ^{[3
]}

Ju, Byeong-Kwon ^{[3
]}

Park, Hun-Kuk ^{[4
]}

机构：

[1] Korea Electrorechnol Res Inst, Adv Med Device Res Ctr, Ansan 426910, South Korea

[2] Kyung Hee Univ, Res Ctr, Dept Informat Display & Adv Display, Seoul 130701, South Korea

[3] Korea Univ, Coll Elect Engn, Display & Nanosyst Lab, Seoul 136713, South Korea

[4] Kyung Hee Univ, Sch Med, Dept Biomed Engn, Seoul 130701, South Korea

来源：

2012 25TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) | 2012年

关键词：

field-emission X-ray source; carbon nanotube emitter; focusing lens; effective focal spot;

D O I：

暂无

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：

Hermetic-sealed field-emission X-ray sources with an anode voltage and current of 70 kV and 0.5 mA have been developed using an anisotropic focusing electron lens structure for an isotropic focal spot. The anisotropic focusing of an electron beam was achieved using an electrostatic electron lens with anisotropic aperture geometry integrated in a gate (or grid) electrode. The anisotropic geometry has an influence on the electron beam with different horizontal and vertical electric fields, thereby anisotropically focusing the beam on an anode target.

引用

页码：66 / +

页数：2

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