Determination of Minimum Detectable Activity in Environmental Samples

환경방사능 측정에서의 검출한계치의 정량적 고찰 및 최소검출방사능 농도 계산

  • Published : 1999.09.30


In this paper, using statistical theory the basic concepts and the formulars of lower limit of detection were deasribed. Assuming that risks of 5% are acceptable (95% confidence level), lower limits of detection were calculated on the measuring apparatus for alpha, beta and gamma nuclides. Also, on the basis concepts of lower limit of detection, the MDA values were calculated for the radionuclides detected easily in the environment. These results make it possible to evaluate confidence limits on the radioanalytical results in the environmental sample.