A filter spiked with radioactivity dedicated for use in the EU safeguards laboratory in Luxembourg - A quality assurance tool for the radiation protection and nuclear safety laboratory
The Radiation Protection and Nuclear Safety Unit DG Energy requested JRC-Geel to make a spiked filter with certified values for the total alpha and beta activity (ARES: (2016)28718). This filter will be used as a quality assurance tool for testing the performance of instruments measuring the radioactive contamination of smear samples taken on equipment returned by nuclear safeguard inspectors.
A blank filter was laminated with a plastic foil on the backside in order to make it mechanically stronger. Then, the filter was spiked with standardised solutions of mainly two alpha-radiation emitting radionuclides (234U and 236U) and one beta-radiation emitting radionuclide (137Cs). The exact amount of solution dispensed on the filter was determined by weighing the pycnometer containing the standardised solution, before and after dispensing. After spiking and drying, the filter was covered with a thin Mylar-foil to prevent the loss of material. The certified activities were 52.8 ± 0.8 Bq for the total alpha activity and 96.7 ±- 1.0 Bq of total beta activity.
VAN AMMEL Raf;
STROH Heiko;
MAROULI Maria;
ALTZITZOGLOU Timotheos;
SOBIECH-MATURA Katarzyna;
HULT Mikael;
2016-04-20
Publications Office of the European Union
JRC100789
978-92-79-56964-7,
1831-9424,
EUR 27800,
OP LA-NA-27800-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC100789,
10.2787/673436,
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