Supplementary comparison - Third interlaboratory comparison of radionuclide calibrators
Project Description
The first comparison was organised as the EURAMET Project No. 1243 “The interlaboratory comparison of radionuclide calibrators” which took place in Prague 4-6 March 2013.
The second comparison went under the EURAMET Project No. 1437 „The follow-up interlaboratory comparison of radionuclide calibrators” in 2018.
The proposed new comparison involves more participants from EURAMET members and intends the activity measurements of the radionuclides used in nuclear medicine:
18F, 67Ga, 90Y, 99mTc, 111In, 123I, 131I, 153Sm, 177Lu, 201Tl.
As a check source, 137Cs will be measured.
Progress Report 2026-10-07
The Draft B (ver. of 10 February 2026) was approved by the TC-IR and sent to the KCWG(II) for approval 23 Feb 2026.
KCWG(II) comments were received 18 March 2026.
The Pilot replied to them 14 April 2026. Follow-up comments were received in June 2026. They were mainly on how to account for correlations when calculating the DOEs.
The report is being revised.
Progress Report 2025-03-30
The activities of ten short-lived radionuclides were measured by participants from 9 European NMIs and/or DIs.
Radionuclide solutions were measured in 4 geometries, and the comparison reference values have been derived for each prepared combination “radionuclide-geometry”.
The Draft A was prepared by the Pilot and sent out to the participants for their comments.
When approved by all participants the Draft A changes its status to the Draft B, and the latter is to be submitted to the TC-IR