Interlaboratory comparison on 137Cs activity concentration in fume dust

Faidra Tzika (1) , Mikael Hult (1) , Oleksiy Burda (2) , Dirk V. Arnold (2) , Goedele Sibbens (1) , Belén Caro Marroyo (3) , Maria Belén Gómez–mancebo (3) , Virginia Peyrés (3) , Hannah Moser (4) , Laurent Ferreux (5) , Jaroslav Šolc (6) , Pavel Dryák (6) , Aldo Fazio (7) , Aurelian Luca (8) , Branko Vodenik (9) , Mario Reis (10) , Zbigniew Tyminski (11) , Seppo Klemola (12)

1 IRMM - JRC Institute for Reference Materials and Measurements [Geel]
2 PTB - Physikalisch-Technische Bundesanstalt [Braunschweig]
3 CIEMAT - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
4 BEV - Bundesamt für Eich- und Vermessungswesen [Wien]
5 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)
6 Czech Metrology Institute
7 ENEA - Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development
8 Horia Hulubei National Institute for Physics and Nuclear Engineering
9 IJS - Jozef Stefan Institute [Ljubljana]
10 IST - Instituto Superior Técnico, Universidade Técnica de Lisboa
11 NCBJ - National Center for Nuclear Research
12 STUK - Säteilyturvakeskus [Suomi] = Radiation and Nuclear Safety Authority in Finland = Autorité de sûreté nucléaire et de radioprotection [Finlande]

A comparison was conducted, between 11 European National Metrology Institutes and EC-JRC, on measurement of Cs-137 activity concentration in fume dust. As test material an activity standard produced from real contaminated fume dust was used. The standard material consisted of 13 cylindrical samples of compressed fume dust. The material contained Cs-137 and Co-60 of reference activity concentrations of (9.72 +/- 0.10) Bq/g and (0.450 +/- 0.018) Bq/g, respectively, for the reference date of 1 June 2013, determined using the comparison results. The organization and results of the intercomparison, as well as the process of obtaining reliable reference values are presented.

Mots clés: Metrology; Iodizing radiation measurements; Interlaboratory comparisons; fume dust; 137Cs; 60Co

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Faidra Tzika, Mikael Hult, Oleksiy Burda, Dirk V. Arnold, Goedele Sibbens, et al.. Interlaboratory comparison on 137Cs activity concentration in fume dust. Radiation Physics and Chemistry, 2015, RADIATION PHYSICS AND CHEMISTRY, 116, pp.106 - 110. ⟨10.1016/j.radphyschem.2015.03.043⟩. ⟨cea-01865477⟩