CNT point emitter for x-ray source applications

Sang Heon Lee, Jun Soo Han, Ki Nam Yun, Juhyun Jeon, Cheol Jin Lee, Yoon Ho Song

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We fabricated the point-type CNT emitter for cold cathode x-ray source applications. The CNT point emitter was made by CNT film with a triangular tip shape, which was clamped using two stainless steel plates. Electrical properties of the point-type CNT emitter measured in triode structure showed the low turn-on and threshold electric fields, the high emission current and relatively high electron transmittance. The x-ray sources made by the point-type CNT film emitter indicated good performance, which reveals high resolution x-ray images at a low anode current and at a low anode voltage. Our results indicated that the point-type CNT emitter is very useful for the high performance cold cathode x-ray sources.

Original languageEnglish
Title of host publication2017 30th International Vacuum Nanoelectronics Conference, IVNC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages308-309
Number of pages2
ISBN (Electronic)9781509039753
DOIs
Publication statusPublished - 2017 Sep 26
Event30th International Vacuum Nanoelectronics Conference, IVNC 2017 - Regensburg, Germany
Duration: 2017 Jul 102017 Jul 14

Other

Other30th International Vacuum Nanoelectronics Conference, IVNC 2017
CountryGermany
CityRegensburg
Period17/7/1017/7/14

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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  • Cite this

    Lee, S. H., Han, J. S., Yun, K. N., Jeon, J., Lee, C. J., & Song, Y. H. (2017). CNT point emitter for x-ray source applications. In 2017 30th International Vacuum Nanoelectronics Conference, IVNC 2017 (pp. 308-309). [8051658] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IVNC.2017.8051658