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J Radiat Prot > Volume 31(3); 2006 > Article
Journal of Radiation Protection 2006;31(3):155-0.
액체섬광계수기 장비의 계측조건 확립에 관한 연구
Research on Measurement Condition Establishment of a Liquid Scintillation Counter System
Park, Eung-Seop;Han, Sang-Jun;Lee, Seung-Jin;Kim, Hee-Gang;Lee, Na-Young;Mun, Ji-Yeon;
It is judged that there could be certainty in every process of analyzing environmental samples using Liquid Scintillation Counter. Therefore, this study focuses on quantitative evaluation on uncertainty in an effort to analyze comparatively accurately environmental samples. For this, after parameters which can have an effect on uncertainty was derived, the evaluation on each parameter was tamed out. The results of analysis of each parameter showed that the effect according to the weight difference of Teflon vial did not appear, and that standard deviations of SQP(E) averages reached saturation point at $75{sim}90$ sec at the result of making increases step by step the irradiation time of External standard, and that values measured by repeat method produces good results compared with replicate. Also, conclusion was derived that analysis on sample after it is left in cold and dark room at least above 1,000 minutes have to be carried out, and the result of carrying out verification on results measured as well as equipment itself using radioactivity-error-analysis and chi-square test, resonable result was derived.
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