Stray radiation dose reduction using a backscatter shield and a rectangular collimator for a handheld intraoral X-ray unit-Reference-Cited by-同舟云学术

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

Published:2023-08-31 Issue:19 Volume:199 Page:2349-2355
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Otaka Yusei¹²³^ORCID,Harata Yasuo¹²,Izawa Maki¹²,Shiba Noriyoshi¹²,Iwawaki Atsushi⁴²^ORCID,Ishii Takeru⁴²,Ochiai Akihiro⁴²,Takahashi Nobutoshi¹²,Saka Hideki³⁴²,Kito Shinji¹²

Affiliation:

1. Division of Dental Radiology , Department of Diagnostic and Therapeutic Sciences, , 1-1 Keyakidai, Sakado, Saitama 350-0283 , Japan

2. Meikai University School of Dentistry , Department of Diagnostic and Therapeutic Sciences, , 1-1 Keyakidai, Sakado, Saitama 350-0283 , Japan

3. Forensic Odontology Center, Meikai University School of Dentistry , 1-1 Keyakidai, Sakado, Saitama 350-0283 , Japan

4. Division of Forensic Odontology , Department of Diagnostic and Therapeutic Sciences, , 1-1 Keyakidai, Sakado, Saitama 350-0283 , Japan

Abstract

Abstract 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.

Funder

Japan Society for the Promotion of Science

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Link

https://academic.oup.com/rpd/article-pdf/199/19/2349/53456700/ncad239.pdf

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