Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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An Intraoral Miniature X-ray Tube Based on Carbon Nanotubes for Dental Radiography

  • Kim, Hyun Jin (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Hyun Nam (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Raza, Hamid Saeed (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Park, Han Beom (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
  • Cho, Sung Oh (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology)
  • Received : 2015.11.18
  • Accepted : 2016.01.11
  • Published : 2016.06.25
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Abstract

A miniature X-ray tube based on a carbon-nanotube electron emitter has been employed for the application to a dental radiography. The miniature X-ray tube has an outer diameter of 7 mm and a length of 47 mm. The miniature X-ray tube is operated in a negative high-voltage mode in which the X-ray target is electrically grounded. In addition, X-rays are generated only to the teeth directions using a collimator while X-rays generated to other directions are shielded. Hence, the X-ray tube can be safely inserted into a human mouth. Using the intra-oral X-ray tube, a dental radiography is demonstrated where the positions of an X-ray source and a sensor are reversed compared with a conventional dental radiography system. X-ray images of five neighboring teeth are obtained and, furthermore, both left and right molar images are achieved by a single X-ray shot of the miniature X-ray tube.

Keywords

References

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