Optimized method for individual radon progeny measurement based on alpha spectrometry following the Wicke method

Wang, Yunxiang; Sun, Changhao; Zhang, Lei; Guo, Qiuju

doi:10.1016/j.radmeas.2021.106558

Cited by 7 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the Radon Mapper and the AlphaGUARD, they do not have capability for energy discrimination; thus, they should use a method similar to the decay method reported by many researchers [27][28][29][30]. Wang et al [31] reported that the time scheme for the sampling and measurement affects the uncertainty. Although they are the methods for radon and thoron progeny measurement, the principle would be same as that for radon and thoron concentration.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Commercially Available Active-Type Radon–Thoron Monitors at Different Sampling Flow Rates

et al. 2021

View full text Add to dashboard Cite

Recently, some commercially available active-type radon–thoron monitors were developed; however, their performance has not been characterized. This article presents the characteristics of three commercially available active-type radon–thoron monitors (RAD7, Radon Mapper, and AlphaGUARD) at different sampling flow rates. The thoron concentration measured by the monitors was compared with the reference value measured by a grab sampling method. As a result, the ratio of the measured concentration to the reference increased with flow rate for the RAD7 and the Radon Mapper although that of the AlphaGUARD decreased. The difference may be attributed to the coefficients used in the calculation and the measurement time scheme. The results indicate the importance of the sampling flow rate in thoron measurement. Monitoring of flow rate at the measurement and periodic calibration at multiple sampling flow rates should be conducted for quality assurance and quality control of the measurand.

show abstract

Section: Discussionmentioning

confidence: 99%

Characterization of Commercially Available Active-Type Radon–Thoron Monitors at Different Sampling Flow Rates

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The alpha spectr a are recorded by multi-channel analysers (MCAs) and analysed by Micro-Controller Units (MCUs). The revised Wicke method was chosen for the activity concentration measurement, with a sampling time of 0-30 min and measurement times of 0-30 min and 40-60 min respectively [23]. The 218 Po, 214 Pb and 214 Bi activity concentrations are calculated by the following equations.…”

Section: Instruments and Methodsmentioning

confidence: 99%

Comparison measurement of unattached radon progeny concentration in three different environments

Sun¹,

Wang²,

Zhang³

et al. 2020

J. Radiol. Prot.

View full text Add to dashboard Cite

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.

show abstract

Parameter uncertainty analysis of the equivalent lung dose coefficient for the intake of radon in mines: A review

Makumbi,

Breustedt,

Raskob

2024

Journal of Environmental Radioactivity

View full text Add to dashboard Cite

Optimized method for individual radon progeny measurement based on alpha spectrometry following the Wicke method

Cited by 7 publications

References 17 publications

Characterization of Commercially Available Active-Type Radon–Thoron Monitors at Different Sampling Flow Rates

Characterization of Commercially Available Active-Type Radon–Thoron Monitors at Different Sampling Flow Rates

Comparison measurement of unattached radon progeny concentration in three different environments

Parameter uncertainty analysis of the equivalent lung dose coefficient for the intake of radon in mines: A review

Contact Info

Product

Resources

About