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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publication2018 31st International Vacuum Nanoelectronics Conference, IVNC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538657171
DOIs
Publication statusPublished - 2018 Nov 1
Event31st International Vacuum Nanoelectronics Conference, IVNC 2018 - Kyoto, Japan
Duration: 2018 Jul 92018 Jul 13

Other

Other31st International Vacuum Nanoelectronics Conference, IVNC 2018
CountryJapan
CityKyoto
Period18/7/918/7/13

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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