Carbon nanotube field emission x-ray system for computed tomography

Je Hwang Ryu, Wan Sun Kim, Seung Ho Lee, Jung Su Kang, Jae Gon Kim, Soo Yeol Lee, Kyu Chang Park, Hun Kuk Park

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

6 Citations (Scopus)

Abstract

Computed Tomography (CT) using Carbon Nanotube (CNT) x-ray source is a technique of generating reconstruction images of the structure of teeth sample. A proto type CNT x-ray CT was designed for medical imaging to examine whether it could be used to analysis the equipment of medical and industrial application. The CNT field emitter array was grown on silicon substrate through a resist-assisted patterning (RAP) process. The field emission properties showed a gate turn-on field of 3.8 V/μm at an anode emission current of 0.5 mA. The author demonstrated the x-ray source with four electrode structures utilizing the CNT emitter. The acquisitioned images were reconstructed by filtered back projection (FBP) method.

Original languageEnglish
Title of host publicationMedical Imaging 2013
Subtitle of host publicationPhysics of Medical Imaging
DOIs
Publication statusPublished - 2013
EventMedical Imaging 2013: Physics of Medical Imaging - Lake Buena Vista, FL, United States
Duration: 11 Feb 201314 Feb 2013

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8668
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2013: Physics of Medical Imaging
Country/TerritoryUnited States
CityLake Buena Vista, FL
Period11/02/1314/02/13

Keywords

  • Carbon nanotube
  • Computed tomography
  • X-ray

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