Characterization of compact alumina vacuum sealed x-ray tube for medical imaging: Interpretation with simulation program

Jinho Choi, Amar Prasad Gupta, Jaekyu Jang, Seung Jun Yeo, Jaeik Jung, Moon Shik Chae, Yeong Heum Yeon, Byeong No Lee, Kyungmin Oh, Jeung Sun Ahn, Seung Hoon Kim, Hyung Soo Mok, Moonkyoo Kong, Jehwang Ryu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We developed a compact vacuum X-ray tube using an alumina body instead of glass. A filament is implanted as a cathode which follows Richardson-Dushman equation. After aging the filament to eliminate impurities on the filament which improves performance of filament before tubing, tube current was obtained from anode voltage of 6kV, 3mA to 40kV, 3.15mA. The pulse high voltage generator is designed and developed to make the tube less stressful. With the ceramic X-ray tube, X-ray images of human breast and teeth phantom were successfully obtained, verifying the potential of the compact alumina vacuum sealed X-ray tube in X-ray application for medical imaging.

Original languageEnglish
Title of host publicationMedical Imaging 2021
Subtitle of host publicationPhysics of Medical Imaging
EditorsHilde Bosmans, Wei Zhao, Lifeng Yu
ISBN (Electronic)9781510640191
Publication statusPublished - 2021
EventMedical Imaging 2021: Physics of Medical Imaging - Virtual, Online, United States
Duration: 15 Feb 202119 Feb 2021

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferenceMedical Imaging 2021: Physics of Medical Imaging
Country/TerritoryUnited States
CityVirtual, Online


  • Aging process
  • Alumina
  • Filament
  • Focal spot
  • Thermionic emission x-ray


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