title: Efficiency analysis and comparison of different radon progeny measurement methods.
abstract: Radon exposure to the public contributes more than half of all the radiation doses caused by natural radiation; accurate measurement of radon progeny is quite essential for the dose evaluation of radon exposure in environment. For the purpose of establishing a radon progeny standard and controlling measurement quality of commercial devices, it is quite important to analyze the efficiency of different measurement methods and determine which would be the most appropriate for radon progeny measurements. Through theoretical analysis and experimental measurement, some commonly used measurement methods were compared in this study and the development trends of those methods were reviewed. Results show that for radon progeny measurement, the spectroscopic analysis method is better than the gross count method, while least-square calculation methods is better than traditional three-count or five-count method. Multiperiod counting of α plus β spectrum as well as using weighted least-square calculation method might be the best choice for accurate measurement on radon progeny in standard radon chamber when calibrating commercial radon progeny monitors.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Abdumomin
authors.initials: A
authors.lastname: Kadir
authors.affiliation: Solid Dosimetric Detector and Method Laboratory, Beijing 102205, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Qiuju
authors.initials: Q
authors.lastname: Guo
authors.affiliation: Ionizing Radiation and Medical Science, National Institute of Metrology, Beijing 100013, China.
authors.forename: Juncheng
authors.initials: J
authors.lastname: Liang
mesh_terms: D004781:Environmental Exposure / Q000009:adverse effects; D004784:Environmental Monitoring / Q000379:methods*; D006801:Humans; D011848:Radioactive Pollutants / Q000032:analysis*; D011886:Radon / Q000032:analysis*
chemical_list: D011848:Radioactive Pollutants; D011886:Radon