Results of the 2010 National Radiation Protection Institute intercomparison of radon and its short-lived decay product continuous monitors

Jílek, K.; Marušiaková, Miriam

doi:10.1093/rpd/ncr064

Cited by 14 publications

(4 citation statements)

References 5 publications

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“…This value was rejected as 'an outlier', although there was no real explanation of this deviation. Laboratory 3 had successfully participated in several international ILCs and achieved acceptable results [7][8][9]. Problem with the reference value could be avoided by exposition in radon chamber or using the active device in simultaneous regime with charcoal passive devices to estimate or obtain the reference value and that are the recommendation for the next intercomparisons.…”

Section: Results Discussion and Conclusionmentioning

confidence: 99%

Results of the 2015 national indoor radon intercomparison measurements in Serbia

et al. 2016

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Abstract. Results and conclusions of interlaboratory comparison of indoor radon in 2015 in Serbia are presented. The participants were three accredited laboratories from Serbia: Serbian Institute of Occupational Health "Dr Dragomir Karajović", Laboratory for Radioactivity and Dose Measurements at the Faculty of Sciences, University of Novi Sad and Radiation and Environmental Protection Department, Vinča Institute of Nuclear Science. The laboratories make use of the same method for radon measurement, using charcoal canisters according to US Environmental Protection Agency (EPA) protocol 520/5-87-005. Calibration of detection effi ciency was performed using EPA radium standard. Radon activity concentrations were determined on the basis of the intensity of short-living radon daughters, 214 Bi and 214Pb, gamma lines. The results of intercomparison were evaluated by using the u-test, which was calculated according to the International Atomic Energy Agency criteria. In this paper, not only limitations but also the advantages and possibilities of application of this method for measuring levels of human exposure to radon are discussed.

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Section: Results Discussion and Conclusionmentioning

confidence: 99%

Results of the 2015 national indoor radon intercomparison measurements in Serbia

et al. 2016

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“…However, only limited comparison of unattached radon progeny has been carried out and most comparison was carried out in a radon chamber where there was no thoron interference. The influence of attached radon progeny was not analysed [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Comparison measurement of unattached radon progeny concentration in three different environments

Sun¹,

Wang²,

Zhang³

et al. 2020

J. Radiol. Prot.

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Accurate measurement of unattached radon progeny is important for dose evaluation of radon exposure. For quality control of field surveys, a series of comparison measurements were carried out using three commercial unattached radon progeny monitors in real environments as well as in a radon chamber. The results show that the radon equilibrium equivalent concentrations (EECs) of different monitors agree very well, mostly within ±3.0% where there is no thoron progeny interference in the radon chamber. However, the unattached fraction of radon progeny is not so consistent, and the relative difference is 3.3% ~ 39.5% in different environments. The unattached fraction of radon progeny is affected by aerosol concentration. Anomalously high unattached fraction was found in the environment with extremely high humidity and low aerosol concentration. For accurate measurement of unattached radon progeny, specific attention should be paid to the collection efficiency of unattached radon progeny and the interference of attached radon progeny on a wire screen.

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“…Most surveys of radon levels in dwellings are carried out using passive detectors. Active radon monitors are frequently used in radon diagnostic measurements and in some control programmes (Jilek andMarušiakova 2011, Gunning et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Performance of radon monitors in a purpose-built radon chamber

et al. 2018

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The purpose of this paper is to benchmark several different radon monitors, by quantifying their accuracy and response time. Radon monitors with different characteristics were tested in a purpose-built radon chamber under reference conditions. The radon concentration in the chamber was controlled and maintained at a stable radon concentration of (2648 ± 85) Bq m to evaluate the accuracy and precision of these monitors. The response time of the monitors was analysed for two time intervals. To assess the response time of the monitors, radon concentration was varied from a theoretical value of 0-6441 Bq m and then from 6441 to 2648 Bq m. The results from this study show that general purpose radon monitors are less accurate than those used by radon testing service providers and the research community. All monitors tested reported a mean radon concentration within the ±10% of the reference detector value at the radon equilibrium concentration. Different response time analysis methods were proposed and discussed, and for the particular time intervals analysed, response time was found to be slower for those radon monitors intended for general purpose applications.

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Results of the 2010 National Radiation Protection Institute intercomparison of radon and its short-lived decay product continuous monitors

Cited by 14 publications

References 5 publications

Results of the 2015 national indoor radon intercomparison measurements in Serbia

Results of the 2015 national indoor radon intercomparison measurements in Serbia

Comparison measurement of unattached radon progeny concentration in three different environments

Performance of radon monitors in a purpose-built radon chamber

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