이동형 X선 발생장치의 2차 방사선 차폐를 위한 선속조절기 개발 연구

• 영문명: Development of Radiation Restrictor for Secondary Radiation Shielding of Mobile X-ray Generator
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 구본열(Koo Bon-Yeoul) 김가중(Kim Gha-Jung)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제41권 제5호, 397~403쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2018.10.30

영문 초록

Mobile X-ray generators are used not in the radiation area but in open space, which causes the exposure of secondary radiation to the healthcare professionals, patients, guardians, etc., regardless of their intentions. This study aimed to investigate the shielding effect of the developed radiation restrictor to block the secondary radiation scattered during the use of mobile X-ray generator. Upon setting the condition of mobile X-ray generator with chest AP, spatial doses were measured by the existence of human equivalent phantom and radiation restrictor, and measured by the existences of phantom and radiation restrictor at the same length of 100 cm. Measurements were taken at intervals of 10cm every 30° from -90° (head direction) to +90° (body direction). Upon the study results, spatial doses in all direction were increased by 45% on average when using phantom in the same condition, however, they were decreased by 64% on average when using the developed radiation restrictor. The dose at 100 cm from the center of X-ray was 3.0±0.08 μGy without phantom and was increased by 40% with 4.2±0.08 μGy after phantom usage. The dose when using phantom and the developed radiation restrictor was 1.4±0.08 μGy, which was decreased by 66% compared to the case without using them. Therefore, it is considered the scattered radiation can be shielded at 100-150 cm, the regulation of the distance between beds, effectively with the developed radiation restrictor when using mobile X-ray generators, which can lower the radiation exposure to the people nearby including healthcare professionals and patients

목차

Ⅰ. 서 론

Ⅱ. 재료 및 방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

키워드

Mobile X-ray generator Secondary Radiation Shielding device Scattered radiation Spatial dose 이동형 X선 발생장치 2차 방사선 차폐도구 산란 방사선 공간선량