CNT field emitter based high performance X-ray source

Sang Heon Lee; Jun Soo Han; Juhyun Jeon; Han Bin Go; Cheol Jin Lee; Yoon Ho Song

doi:10.1109/IVNC.2018.8520011

CNT field emitter based high performance X-ray source

Sang Heon Lee, Jun Soo Han, Juhyun Jeon, Han Bin Go, Cheol Jin Lee, Yoon Ho Song

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We fabricated the cold cathode X-ray source composed of point-type CNT field emitter, mesh gate electrode, e-beam focusing lens and W anode. The point-type CNT field emitter was made by CNT film with a triangular tip shape. Field emission properties measured in triode configuration showed the low turn-on and threshold electric fields, the high emission current and focused electron beam spot. The CNT field emitter based cold cathode X-ray source reveals high resolution X-ray images. We demonstrated that the point-type CNT emitter is suitable candidate for the high performance cold cathode X-ray sources.

Original language	English
Title of host publication	2018 31st International Vacuum Nanoelectronics Conference, IVNC 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538657171
DOIs	https://doi.org/10.1109/IVNC.2018.8520011
Publication status	Published - 2018 Nov 1
Event	31st International Vacuum Nanoelectronics Conference, IVNC 2018 - Kyoto, Japan Duration: 2018 Jul 9 → 2018 Jul 13

Other

Other	31st International Vacuum Nanoelectronics Conference, IVNC 2018
Country	Japan
City	Kyoto
Period	18/7/9 → 18/7/13

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Keywords

carbon nanotube filed emitter
cold cathode X-ray source
field emission
triode structure

ASJC Scopus subject areas

Electrical and Electronic Engineering
Industrial and Manufacturing Engineering
Electronic, Optical and Magnetic Materials

Cite this

Lee, S. H., Han, J. S., Jeon, J., Go, H. B., Lee, C. J., & Song, Y. H. (2018). CNT field emitter based high performance X-ray source. In 2018 31st International Vacuum Nanoelectronics Conference, IVNC 2018 [8520011] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IVNC.2018.8520011

CNT field emitter based high performance X-ray source. / Lee, Sang Heon; Han, Jun Soo; Jeon, Juhyun; Go, Han Bin; Lee, Cheol Jin; Song, Yoon Ho.

2018 31st International Vacuum Nanoelectronics Conference, IVNC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8520011.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, SH, Han, JS, Jeon, J, Go, HB, Lee, CJ & Song, YH 2018, CNT field emitter based high performance X-ray source. in 2018 31st International Vacuum Nanoelectronics Conference, IVNC 2018., 8520011, Institute of Electrical and Electronics Engineers Inc., 31st International Vacuum Nanoelectronics Conference, IVNC 2018, Kyoto, Japan, 18/7/9. https://doi.org/10.1109/IVNC.2018.8520011

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title = "CNT field emitter based high performance X-ray source",

abstract = "We fabricated the cold cathode X-ray source composed of point-type CNT field emitter, mesh gate electrode, e-beam focusing lens and W anode. The point-type CNT field emitter was made by CNT film with a triangular tip shape. Field emission properties measured in triode configuration showed the low turn-on and threshold electric fields, the high emission current and focused electron beam spot. The CNT field emitter based cold cathode X-ray source reveals high resolution X-ray images. We demonstrated that the point-type CNT emitter is suitable candidate for the high performance cold cathode X-ray sources.",

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author = "Lee, {Sang Heon} and Han, {Jun Soo} and Juhyun Jeon and Go, {Han Bin} and Lee, {Cheol Jin} and Song, {Yoon Ho}",

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AU - Han, Jun Soo

AU - Jeon, Juhyun

AU - Go, Han Bin

AU - Lee, Cheol Jin

AU - Song, Yoon Ho

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N2 - We fabricated the cold cathode X-ray source composed of point-type CNT field emitter, mesh gate electrode, e-beam focusing lens and W anode. The point-type CNT field emitter was made by CNT film with a triangular tip shape. Field emission properties measured in triode configuration showed the low turn-on and threshold electric fields, the high emission current and focused electron beam spot. The CNT field emitter based cold cathode X-ray source reveals high resolution X-ray images. We demonstrated that the point-type CNT emitter is suitable candidate for the high performance cold cathode X-ray sources.

AB - We fabricated the cold cathode X-ray source composed of point-type CNT field emitter, mesh gate electrode, e-beam focusing lens and W anode. The point-type CNT field emitter was made by CNT film with a triangular tip shape. Field emission properties measured in triode configuration showed the low turn-on and threshold electric fields, the high emission current and focused electron beam spot. The CNT field emitter based cold cathode X-ray source reveals high resolution X-ray images. We demonstrated that the point-type CNT emitter is suitable candidate for the high performance cold cathode X-ray sources.

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KW - cold cathode X-ray source

KW - field emission

KW - triode structure

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Access to Document

10.1109/IVNC.2018.8520011