Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots

Sunshin Jung, Won Suk Chang, Beom Seok Kim, Daeho Kim, Seung Kwon Seol, Yang Doo Lee, Byeong Kwon Ju, Kyu Chang Park, Hun Kuk Park

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

1 Citation (Scopus)

Abstract

Hermetic-sealed field-emission X-ray sources with an anode voltage and current of 70 kV and 0.5 mA have been developed using an anisotropic focusing electron lens structure for an isotropic focal spot. The anisotropic focusing of an electron beam was achieved using an electrostatic electron lens with anisotropic aperture geometry integrated in a gate (or grid) electrode. The anisotropic geometry has an influence on the electron beam with different horizontal and vertical electric fields, thereby anisotropically focusing the beam on an anode target.

Original languageEnglish
Title of host publicationTechnical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012
Pages66-67
Number of pages2
DOIs
Publication statusPublished - 2012 Nov 19
Event25th International Vacuum Nanoelectronics Conference, IVNC 2012 - Jeju, Korea, Republic of
Duration: 2012 Jul 92012 Jul 13

Other

Other25th International Vacuum Nanoelectronics Conference, IVNC 2012
CountryKorea, Republic of
CityJeju
Period12/7/912/7/13

Fingerprint

Electron lenses
Field emission
Electron beams
Lenses
Anodes
Electrostatic lenses
X rays
Geometry
Electric fields
Electrodes
Electric potential

Keywords

  • carbon nanotube emitter
  • effective focal spot
  • field-emission X-ray source
  • focusing lens

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Jung, S., Chang, W. S., Kim, B. S., Kim, D., Seol, S. K., Lee, Y. D., ... Park, H. K. (2012). Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots. In Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012 (pp. 66-67). [6316838] https://doi.org/10.1109/IVNC.2012.6316838

Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots. / Jung, Sunshin; Chang, Won Suk; Kim, Beom Seok; Kim, Daeho; Seol, Seung Kwon; Lee, Yang Doo; Ju, Byeong Kwon; Park, Kyu Chang; Park, Hun Kuk.

Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012. 2012. p. 66-67 6316838.

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

Jung, S, Chang, WS, Kim, BS, Kim, D, Seol, SK, Lee, YD, Ju, BK, Park, KC & Park, HK 2012, Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots. in Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012., 6316838, pp. 66-67, 25th International Vacuum Nanoelectronics Conference, IVNC 2012, Jeju, Korea, Republic of, 12/7/9. https://doi.org/10.1109/IVNC.2012.6316838
Jung S, Chang WS, Kim BS, Kim D, Seol SK, Lee YD et al. Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots. In Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012. 2012. p. 66-67. 6316838 https://doi.org/10.1109/IVNC.2012.6316838
Jung, Sunshin ; Chang, Won Suk ; Kim, Beom Seok ; Kim, Daeho ; Seol, Seung Kwon ; Lee, Yang Doo ; Ju, Byeong Kwon ; Park, Kyu Chang ; Park, Hun Kuk. / Field-emission X-ray sources with an anisotropic focusing lens for isotropic X-ray focal spots. Technical Digest - 25th International Vacuum Nanoelectronics Conference, IVNC 2012. 2012. pp. 66-67
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