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Environmental radioactivity proficiency test exercise 2010.

Harms, A V; Gilligan, C (2011) Environmental radioactivity proficiency test exercise 2010. NPL Report. IR 26

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Abstract

The results of the sixteenth NPL Environmental Radioactivity Proficiency Test Exercise are reported. This exercise, now UKAS accredited, included preparing 260 samples and distributing them to 73 participants. Eight 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 three plutonium isotopes (P), 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 five radionuclides (S). The level of performance was slightly worse than observed in the previous Exercise (2009); 69% of the results returned were in agreement with the assigned values.

Item Type: Report/Guide (NPL Report)
NPL Report No.: IR 26
Subjects: Ionising Radiation
Ionising Radiation > Radioactivity
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5353

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