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

来源：

RADIATION PROTECTION DOSIMETRY | 2023年 / 199卷 / 19期

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

页码：2349 / 2355

页数：7

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