Realization of radioactive equilibrium in the KRISS radon chamber.
The maintenance of radioactive equilibrium between radon and its decay products in a radon chamber is necessary to calibrate radon decay product monitors. In this study, the activity concentrations of radon decay products have been measured, and mosquito-repellent incense has been used to produce aerosol particles in the chamber. Filter papers with 8 μm pore size were used to collect aerosol in the chamber. The activity concentrations of radon decay products have been evaluated by the Modified Tsivoglou Method. The correction factors due to the differences in counting time requirements of the Modified Tsivoglou Method and the time delay between consecutive measurements have been determined. Finally, the radioactive equilibrium has been confirmed by applying the Bateman equation.
Cheongju University, Cheongju 561-756, Republic of Korea.
Mo Sung
MS
Lee
Tae Soon
TS
Park
Jong Man
JM
Lee
D000336:Aerosols / Q000032:analysis / Q000737:chemistry / Q000592:standards; D000396:Air Pollutants, Radioactive / Q000032:analysis / Q000737:chemistry* / Q000592:standards*; D002138:Calibration; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007700:Kinetics; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation* / Q000592:standards*; D011886:Radon / Q000737:chemistry* / Q000592:standards*; D012016:Reference Values; D015203:Reproducibility of Results; D056910:Republic of Korea; D012680:Sensitivity and Specificity
D000336:Aerosols; D000396:Air Pollutants, Radioactive; D011886:Radon
Radioactive equilibrium; Radon; Radon chamber; Radon decay products