关于气溶胶总放射性IAEA亚太地区国际比对的一些讨论

Abstract

Abstract: The 2015 Asia-Pacific Analytical Laboratories for the Measurement of Environmental Radioactivity (ALMERA) group proficiency test (PT) on the determination of Gross-alpha and Gross-beta and inter-comparison exercise on the gamma emitting radionuclides were conducted by IAEA, and participated in the PT of 14 ALMERA laboratories from 11 countries. The determination of Gross-alpha and Gross-beta is simpler than that of gamma emitting radionuclides. Gross-alpha and Gross-beta is measured separately, and there is no need to consider the mutual interference when measuring at the same time.Only 9 laboratories reported data with pass rate of 67% about the determination of Gross-alpha, and 10 laboratories reported data with pass rate of 50%.It is worthy of attention by those working in the survey.The article also introduced the detailed process of this experiment participating in this comparison. Through the direct measurement method of aerosol filter membranes, the relative deviations of total α and total β were 2.50% and -3.95%, respectively, and our laboratory successfully passed the comparison and summed up the experience from it.

Key words: aerosol, gross-alpha and gross-beta, international comparison

CLC Number:

X830.3

ZHANG Jing, LI Pengxiang, MA Xuyuan, LI Zhou, BAO Li, LIANG Runcheng. Some discussions about Asia-Pacific ALMERA group proficiency test and inter-comparison exercise on the determination of gross-alpha and gross-beta in filter[J].RADIATION PROTECTION, 2021, 41(S1): 45-49.

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Some discussions about Asia-Pacific ALMERA group proficiency test and inter-comparison exercise on the determination of gross-alpha and gross-beta in filter

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