Harms, A V; Gilligan, C (2010) Environmental radioactivity proficiency test exercise 2009. NPL Report. IR 21

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Abstract

The results of NPL's fifteenth Environmental Radioactivity Proficiency Test Exercise are reported. This exercise included preparing 217 samples and distributing them to 37 participants in the UK and 37 overseas participants. Seven different sample types were offered: an aqueous mixture of six alpha emitters (AL), an aqueous mixture of six alpha emitters (AH), an aqueous mixture of four beta emitters (B1), an aqueous mixture of four beta emitters (B2), an aqueous mixture of eight gamma emitters at two concentration levels (GL and GH) and a synthetic solid sample containing six radionuclides (S). The level of performance was slightly higher than observed in the previous Exercise (2008); 71% of the results returned were in good agreement.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	IR 21
Keywords:	Environmental radioactivity, Proficiency test exercise
Subjects:	Ionising Radiation Ionising Radiation > Radioactivity
Last Modified:	02 Feb 2018 13:14
URI:	http://eprintspublications.npl.co.uk/id/eprint/4742

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