An Intraoral Miniature X-ray Tube Based on Carbon Nanotubes for Dental Radiography

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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. Copyright (C) 2016, Published by Elsevier Korea LLC on behalf of Korean Nuclear Society
Publisher
KOREAN NUCLEAR SOC
Issue Date
2016-06
Language
English
Article Type
Article
Keywords

FIELD EMITTERS; BEAM

Citation

NUCLEAR ENGINEERING AND TECHNOLOGY, v.48, no.3, pp.799 - 804

ISSN
1738-5733
DOI
10.1016/j.net.2016.01.012
URI
http://hdl.handle.net/10203/212129
Appears in Collection
NE-Journal Papers(저널논문)
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