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- W2042040996 abstract "본 논문은 유리선량계를 이용하여 장기간에 걸쳐 방사선의 누적선량측정 시 예비가열(preheat)과정을 수행한 선량값과 예비가열을 수행하지 않은(non-preheat)선량값을 30일간 시간에 따른 선량변화와 빌드업 특성을 비교 평가함을 목적으로 하였다. 저 선량의 0.1 mGy, 1 mGy, 5 mGy의 선량을 얻기 위해 진단용 발생장치 AccuRay-650R을 사용하였다. 관전압, 관전류 조건으로 각각의 10개 총 30개의 유리선량계 GD SC-1에 조사하여 장시간에 걸쳐 빌드업 특성을 비교하였다. 예비가열을 거치지 않은 저선량의 유리선량에서 초기 판독선량값은 조사된 선량값에 미치지 못하다가 시간이 지남에 따라 점차 조사된 선량값으로 증가하는 것으로 나타냈다. 이후 실험 종료 후 예비가열을 실시한 값과 차이를 보이지는 않았으며 통계적으로도 유의한 차이는 없었다(p>0.05). 예비가열을 거친 저선량의 유리선량에서 초기 판독선량은 조사된 선량값에 근접하였고 일정한 안정상태를 보인 후 15일이 경과한 이후 부터는 점차 증가하는 것으로 나타냈다. 결론적으로 앞서 보고된 유리선량계의 특성들은 고에너지영역의 고선량에서 유리선량계의 특성들에 관한 내용으로 본 논문에서는 저에너지를 사용해서 저 선량의 누적 선량을 장시간 측정하고자 하면 예비가열을 실시하지 않고 판독을 해도 무방할 것으로 판단 사료된다. The Purpose of this study was to evaluate by comparing the dose change and build up characteristic according to delay time in 30 days of glass dosimeter processed preheat and non preheat when measuring accumulation dose of radiation by using glass dosimeter over the long haul. For obtaining low dose with 0.1 mGy, 1 mGy and 5 mGy, we employed diagnostic generator AccuRay-650R. We compared the build up characteristic over the long haul by exposuring radiation to 30 glass dosimeters sorted into 10 glass dosimeters per tube voltage and current. In Non preheat glass dosimeter, initial measured dose was inferior to exposed dose but as time goes on, was close to exposed dose steadily. In 72 hour after experiment end, non preheat glass dosimeters were not indicated the difference from preheat glass dosimeters and statistical analysis were meaningful (p>0.05). Initial measured dose for low glass dosimeter processed preheat was close to exposed dose and stable. After 15 days dose was gradually increased. Previous study characteristics of glass dosimeter were with respect to characteristic of glass dosimeter in high dose of high energy area. However, in this study, we make a judgment to measure the dose of glass dosimeter without preheat processing when measuring the accumulation dose of low dose in conclusion." @default.
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- W2042040996 date "2013-07-31" @default.
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- W2042040996 title "Experimental study on build up characteristic of glass dosimeter of preheat and Non-preheat in low energy according to delay time" @default.
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- W2042040996 doi "https://doi.org/10.5762/kais.2013.14.7.3412" @default.
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