Comparison of Radon and Thoron Concentration Measuring Systems Among Asian Countries

Miroslaw Janik, Shinji Tokonami, Kazuki Iwaoka, Naregundi Karunakara, Shetty Trilochana, Mandya Purushotham Mohan, Sudeep Kumara, Indaje Yashodhara, Weihai Zhuo, Chao Zhao, Fangdong Tang, Linfeng He, Supitcha Chanyotha, Chutima Kranrod, Darwish Al-Azmi and Osamu Kurihara
Additional contact information
Miroslaw Janik: Center for Advanced Radiation Medicine, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
Shinji Tokonami: Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki 036-8560, Japan
Kazuki Iwaoka: Center for Advanced Radiation Medicine, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
Naregundi Karunakara: Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Karnataka 574199, India
Shetty Trilochana: Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Karnataka 574199, India
Mandya Purushotham Mohan: Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Karnataka 574199, India
Sudeep Kumara: Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Karnataka 574199, India
Indaje Yashodhara: Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Karnataka 574199, India
Weihai Zhuo: Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
Chao Zhao: Shanghai Institute of Measurement and Testing Technology (SIMT), Shanghai 201203, China
Fangdong Tang: Shanghai Institute of Measurement and Testing Technology (SIMT), Shanghai 201203, China
Linfeng He: Shanghai Institute of Measurement and Testing Technology (SIMT), Shanghai 201203, China
Supitcha Chanyotha: Natural Radiation Survey and Analysis Research Unit (NRSA-RU), Chulalongkorn University, Bangkok 10330, Thailand
Chutima Kranrod: Natural Radiation Survey and Analysis Research Unit (NRSA-RU), Chulalongkorn University, Bangkok 10330, Thailand
Darwish Al-Azmi: Department of Applied Sciences, College of Technological Studies, Public Authority for Applied Education and Training, Shuwaikh, PO Box 42325, Kuwait City 70654, Kuwait
Osamu Kurihara: Center for Advanced Radiation Medicine, National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan

IJERPH, 2019, vol. 16, issue 24, 1-11

Abstract: Comparison is an important role in the quality control and quality assurance for any measuring system. Due to the future legal regulations regarding radon levels in the air, maintaining the system quality and harmonization of results as well as validation of radon and thoron measuring systems is important. The aim of this work is to validate the degrees of equivalence and measurement precisions of the existing five radon and four thoron measuring systems located in four Asian countries (China, India, Japan and Thailand) through comparison experiment. In this project, comparison experiment was performed in order to derive the ratio between assigned value obtained from one transfer measurement device for radon and one transfer measurement device for thoron belongs to National Institutes for Quantum and Radiological Science and Technology and participants’ value from their measuring instrument. As a result, the ratio value associated with measurement uncertainty was derived for each activity concentration. Finally, measurement bias and degrees of equivalence between the assigned values and values of measurement quantity from participants’ measuring instruments were statistically analysed and presented.

Keywords: radon; thoron; comparison (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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