Development of a mobile radon calibration system at KRISS
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY(2021)
摘要
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).
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关键词
Radon (222Rn),Radon calibration,Calibration system,Electrostatic radon detector
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