Stray radiation dose reduction using a backscatter shield and a rectangular collimator for a handheld intraoral X-ray unit

被引:0
|
作者
Otaka, Yusei [1 ,2 ]
Harata, Yasuo [1 ]
Izawa, Maki [1 ]
Shiba, Noriyoshi [1 ]
Iwawaki, Atsushi [3 ]
Ishii, Takeru [3 ]
Ochiai, Akihiro [3 ]
Takahashi, Nobutoshi [1 ]
Saka, Hideki [2 ,3 ]
Kito, Shinji [1 ]
机构
[1] Meikai Univ, Dept Diagnost & Therapeut Sci, Div Dent Radiol, Sch Dent, 1-1 Keyakidai, Sakado, Saitama 3500283, Japan
[2] Meikai Univ, Forens Odontol Ctr, Sch Dent, 1-1 Keyakidai, Sakado, Saitama 3500283, Japan
[3] Meikai Univ, Dept Diagnost & Therapeut Sci, Div Forens Odontol, Sch Dent, 1-1 Keyakidai, Sakado, Saitama 3500283, Japan
基金
日本学术振兴会;
关键词
D O I
10.1093/rpd/ncad239
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The objective of this study was to study the dose reduction effect on occupational exposure of operators and public exposure other than operators when a backscatter shield and a rectangular collimator are used in conjunction with a handheld intraoral X-ray unit. The occupational exposure was reduced to 40% when the backscatter shield was attached to the cone-tip, to 13% when the rectangular collimator was attached and to 7.7% when the backscatter shield and rectangular collimator were used together. On the other hand, the public exposure was reduced to 20% when the rectangular collimator was attached, but the backscatter shield was not effective in reducing the public exposure. Attaching a backscatter shield is effective in reducing the occupational exposure, and a rectangular aperture is effective in reducing the occupational exposure, as well as the public exposure.
引用
收藏
页码:2349 / 2355
页数:7
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