用探针接触法制备的小型碳纳米管发射极的电子束亮度

2015 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2015-04-27 DOI:10.1109/IVEC.2015.7223800

Min-Sik Shin, Y. Choi, Jun-Tae Kang, H. Jeon, Jae-Woo Kim, Sora Park, Sungyoul Choi, Jin-Woo Jeong, Ji-Hwan Yeon, S. Ahn, Yoon-Ho Song

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引用次数: 0

摘要

提出了一种制备小尺寸碳纳米管(CNT)发射极的新方法。将涂有碳纳米管的钨探针与Kovar棒表面接触，制备了该发射极，并测量了该发射极产生的电子束亮度。在3100 V电压下获得了1.13 × 10-10 m2的虚光源尺寸和1.2 × 107 A m-2sr-1的亮度。

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Brightness of electron beam from a small carbon nanotube emitter fabricated using the probe contact method

A novel method for fabricating a small-sized carbon nanotube (CNT) emitter was developed. The emitter was fabricated by contacting the tungsten probe covered with CNT paste to the surface of Kovar rod, and then the brightness of electron beam generated from the CNT paste emitter was measured. We obtained the virtual source size of 1.13 × 10^-10 m² and the brightness of 1.2 × 10⁷ A m^-2sr^-1 at an applied voltage of 3,100 V.

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2015 IEEE International Vacuum Electronics Conference (IVEC)

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