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Environmental Radioactivity Proficiency Test Exercise 2020

Van Es, E; Collins, S M; Mohamud, H; Shearman, R (2021) Environmental Radioactivity Proficiency Test Exercise 2020. NPL Report. IR 59

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Abstract

The results of NPL’s twenty-sixth Environmental Radioactivity Proficiency Test Exercise are reported. Five different sample types were offered: an aqueous mixture of one alpha emitting radionuclide and two beta emitting radionuclides (designated ‘AB’), an aqueous mixture of three alpha-emitting radionuclides (‘A1’), an aqueous mixture of three beta-emitting radionuclides (‘B1’), an aqueous mixture of three gamma-emitting radionuclides (‘GH’), and a second aqueous mixture of five gamma-emitting radionuclides (‘GL’). In total, 392 results were submitted. A total of 377 were submitted for individual radionuclide analysis, of these results 299 (79 %) were in agreement with the proficiency test exercise assigned values, 46 (12 %) were questionable and 32 (8 %) were discrepant.

Item Type: Report/Guide (NPL Report)
NPL Report No.: IR 59
Subjects: Ionising Radiation > Radioactivity
Divisions: Medical, Marine & Nuclear
Identification number/DOI: 10.47120/npl.IR59
Last Modified: 16 Dec 2021 13:22
URI: http://eprintspublications.npl.co.uk/id/eprint/9303

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