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Han, M. J.; Hwang, S. H.; Heo, D. H.; Kim, B. C.; Kim, B. J.; Lee, J. M.; Lee, K. B.; Seon, Y. G.
Journal of radioanalytical and nuclear chemistry, 11/2021, Letnik: 330, Številka: 2Journal Article
A mobile radon calibration system was developed with a high-sensitivity radon detector, a movable calibration chamber, and a 226 Ra solid source at the Korea Research Institute of Standards and Science (KRISS). The high-sensitivity radon detector was based on electrostatic collection mechanism. The volume of the calibration chamber was (1003.8 ± 6.0) L. The mobile radon calibration system was calibrated with 222 Rn CRM from the radon primary system at KRISS. The sensitivities were established to be (231.8 ± 16.1) cpm/(kBq/m 3 ) for 218 Po and (254.9 ± 17.8) cpm/(kBq/m 3 ) for 214 Po, respectively ( k = 2).
