- X선 촬영에서 조사야 크기에 따른 산란선량의 변화
- ㆍ 저자명
- 최성관,Choi. Seong-Kwan
- ㆍ 간행물명
- 한국콘텐츠학회논문지
- ㆍ 권/호정보
- 2013년|13권 3호|pp.198-203 (6 pages)
- ㆍ 발행정보
- 한국콘텐츠학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
본 연구에서는 손, 머리, 복부 등에 대한 X선 촬영 시행 시 조사야 크기를 최적화할 경우와 최대화할 경우 검사목적부위로부터 30cm 거리에서의 X선 산란선량이 각각 어느 정도인지를 알아보았다. 그 결과 손, 머리, 복부 등에 대한 X선 산란선량은 첫째, 소인촬영의 경우 조사야 크기를 최적화하였을 때 각각 $0.08{mu}Sv$, $4.39{mu}Sv$, $5.56{mu}Sv$로 나타났고, 조사야 크기를 최대화하였을 때 각각 $0.58{mu}Sv$, $33.47{mu}Sv$, $35.93{mu}Sv$로 나타났으며, 둘째, 성인촬영의 경우 조사야 크기를 최적화하였을 때 각각 $0.40{mu}Sv$, $14.51{mu}Sv$, $18.86{mu}Sv$로 나타났고, 조사야 크기를 최대화하였을 때 각각 $2.78{mu}Sv$, $107.40{mu}Sv$, $117.52{mu}Sv$로 나타났다(P<0.001). 결론적으로, X선 촬영 시 조사야 크기를 필요한 만큼만으로 최대한 줄여주어 최적화시켰을 때에 최대화 시켰을 때보다 피사체 주변의 X선 산란선 발생량은 약 6~7배 정도 감소하였다.
The purpose of this study is to investigate the scattered dose of X-ray at a distance of 30cm from the area to be examined when X-ray field is the most optimized and maximized when X-ray is performed on hand, skull and abdomen. As a result of scattered dose of X-ray on hand, skull and abdomen, first, when X-ray field was the most optimized upon adult X-ray examination, it was $0.08{mu}Sv$, $4.39{mu}Sv$ and $5.56{mu}Sv$, respectively. When x-ray field was maximized, it was $0.58{mu}Sv$, $33.47{mu}Sv$ and $35.93{mu}Sv$, respectively. Second, when X-ray field was the most optimized upon pediatric X-ray examination, it was $0.40{mu}Sv$, $14.51{mu}Sv$ and $18.86{mu}Sv$, respectively. When x-ray field was maximized, it was $2.78{mu}Sv$, $107.40{mu}Sv$ and $117.52{mu}Sv$, respectively(P<0.001). As a result, when the size of X-ray field was decreased down to be necessary and optimal upon X-ray examination, emission of scattered X-ray around specimen is reduced approximately 6-7 times as much as that when it was maximized.