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

    2 Citations (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
    EditorsChristoph Langer, Robert Lawrowski
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages308-309
    Number of pages2
    ISBN (Electronic)9781509039753
    DOIs
    Publication statusPublished - 2017 Sept 26
    Event30th International Vacuum Nanoelectronics Conference, IVNC 2017 - Regensburg, Germany
    Duration: 2017 Jul 102017 Jul 14

    Publication series

    Name2017 30th International Vacuum Nanoelectronics Conference, IVNC 2017

    Other

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

    Bibliographical note

    Funding Information:
    ACKNOWLEDGMENT This work was supported by the Brain Korea 21 Plus Project (T1300305) through the Ministry of Education in Korea and the ETRI Creative R&D program (12ZF1100).

    Publisher Copyright:
    © 2017 IEEE.

    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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