期刊
NUCLEAR ENGINEERING AND TECHNOLOGY
卷 48, 期 3, 页码 799-804出版社
KOREAN NUCLEAR SOC
DOI: 10.1016/j.net.2016.01.012
关键词
CNT Field Emitter; Miniature X-ray Tube; Radiography; X-ray Image
资金
- National Research Foundation of Korea - Korean Government [NRF-2015M2A2A4A03045077]
- Korean Health Industry Development Institute by Ministry of Health and Welfare, Republic of Korea [HI15C0638]
- Korea Health Promotion Institute [HI15C0638020015] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [21A20130012538, 2015M2A2A4A03045077] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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.
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