Abstract

흉부 X-선 촬영 시 피사체의 유무, 촬영실내 X선관과 수광계 (image receptor), 환자 보기창 앞, 환자대기실 출입문 외측, 출입문 개폐여부, 방사선 관계 종사자 출입문 외측, 방사선 관계 종사자 출입문 개폐여부 등으로 구분하여 공간산란선발생을 알아보기 위한 연구로 공간산란선발생에 대한 연구 결과 피사체가 있을 때 수광계 (image receptor) 위치; Chest PA: <TEX>$663{\pm}3.4$</TEX> mR/h, Chest Lateral: <TEX>$2,067{\pm}3.7$</TEX> mR/h, X선관 위치; Chest PA: <TEX>$293{\pm}2.1$</TEX> mR/h, Chest Lateral: <TEX>$927{\pm}1.9$</TEX> mR/h, 환자대기실 출입문 외측 열고; Chest PA: <TEX>$17{\pm}1.6$</TEX> mR/h, Chest Lateral: <TEX>$88{\pm}2.6$</TEX> mR/h, 방사선 관계 종사자 촐입문 외측 열고; Chest PA: <TEX>$3{\pm}1.6$</TEX> mR/h, Chest Lateral: <TEX>$19{\pm}1.6$</TEX> mR/h), 피사체의 두께가 두꺼울수록 각 각의 측정지점에서 산란선 발생이 많았고, 출입문을 닫고 측정한 경우 산란선이 더 적었다. 그러므로 방사선 관계종사자는 촬영실내 산란선 분포에 대한 정확한 정보를 인지하여 불필요한 방사선 피폭을 줄일 수 있도록 노력해야 한다. This study aims to examine the generation of scatter rays by dividing it into the presence of the subject at the chest X-ray examination, the X-ray tube and detector in the X-ray room, the front of the patient window, the outside of the entrance door of the patient waiting room, opening of the entrance door, the outside of the radiological technologist's entrance door, and the opening of the radiological technologist's entrance door, etc. When there is a subject, as the subject is thicker, more scatter rays occur at each of the spots for measurement. And when the entrance door is closed at the measurement, fewer scatter rays are generated.

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