The Environmental Radioactivity Comparison 2008 was the fourteenth in a series of similar exercises to have been conducted by NPL.

The timetable for the exercise was as follows:

Samples ready for dispatch	September 2008
Deadline for submission of results	1 December 2008
Post-comparison workshop	27 January 2009
Final report issued (available to download in pdf format)	May 2009

The Environmental Workshop took place at NPL on 27th January 2009. The following presentations were given during the workshop (available to download in pdf format):

• Source Preparation – Chris Gilligan
• Data Treatment – Arvic Harms
• Alpha Results AL & AH – Chris Gilligan
• Beta One (B1) results – Arvic Harms
• Beta Two (B2) Results – Chris Gilligan
• Gamma Results GL & GH – Arvic Harms
• Concrete Results (C) – Arvic Harms
• Discussion of the 2009 PTE – Chris Gilligan
• 200L Drum PTE – Julian Dean
• Decay Data / Rounding – Andy Pearce
• NPL User Forums – Arzu Arinc
• Summary of 2008 PTE – Arvic Harms

Back to NPL Environmental Radioactivity Comparison Exercises