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The characteristics of dental X-ray fluoroscopic equipment 'DreamRay 60F'

Authors
Shin, Gwi-SoonLee, Bo-RamChang, Kyung-HwanLee, In-JaLee, WonhoChoi, Jong-HakKim, You-Hyun
Issue Date
8월-2010
Publisher
OXFORD UNIV PRESS
Citation
RADIATION PROTECTION DOSIMETRY, v.140, no.4, pp.362 - 368
Indexed
SCIE
SCOPUS
Journal Title
RADIATION PROTECTION DOSIMETRY
Volume
140
Number
4
Start Page
362
End Page
368
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/115955
DOI
10.1093/rpd/ncq133
ISSN
0144-8420
Abstract
This study examined the characteristics of the dental X-ray fluoroscopic equipment, 'DreamRay 60F', which was recently developed in Korea. The output linearity, output reproducibility, half-value layer (HVL), leakage radiation and scattered radiation were measured using an ionisation chamber. The surface dose equivalent rate and estimated dose equivalent of the operator were also calculated. The output linearity was 0.0015-0.0175 and the coefficient of variation for the output reproducibility was 0.0013-0.0074. The experimental HVL was 2.1 mm Al, and the leakage dose rate at 100 cm from the X-ray focus ranged from 2.70 to 19.66 mu Gy h(-1) depending on the direction. The scattered radiation doses differed significantly (1.7-16.8 times) depending on the distance and direction. If an operator is exposed for 10 min per procedure, 5 procedures a day at 5 days a week, he/she sitting at a 908 direction will receive an annual dose equivalent of 13.0 mSv ( at 30 cm) and 63.7 mSv ( at 50 cm) in the trunk and face surface, respectively.
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Lee, Won ho
보건과학대학 (보건환경융합과학부)
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