Results of an international comparison for the determination of radionuclide activity in bilberry material

Wätjen, U.; Altzitzoglou, T.; Ceccatelli, A.; Dikmen, Hasan; Emteborg, Håkan; Ferreux, L.; Fréchou, C.; Rosa, J. La; Luca, A.; Moreno, Yimmy Montoya; Oropesa, P.; Pierre, Sylvie; Schmiedel, Michael; Spasova, Y.; Szántó, Zoltán; Szücs, László; Wershofen, H.; Yücel, Ülkü

doi:10.1016/j.apradiso.2012.02.018

Cited by 16 publications

(10 citation statements)

References 5 publications

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“…The samples were collected in the summer of 2005 in a region close to the Chernobyl reactor site, but outside the exclusion area. The sample collection and preparation procedures were described elsewhere by Wätjen et al [31].…”

Section: Samplesmentioning

confidence: 99%

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Aslan

Yücel

Kahraman

et al. 2014

J Radioanal Nucl Chem

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Quantitative determination of 90 Sr in bilberry, a representative matrix for vegetables and fruits, by Cherenkov counting and modified Eichrom methods is presented. The compatibility of the two methods was checked through the measurement of the BIPM supplementary comparison bilberry sample (CCR(II)-S8). The activity concentration of 90 Sr in bilberry sample was measured as 153 ± 4 and 152 ± 7 Bq kg -1 by Cherenkov counting and modified Eichrom method, respectively which is in good agreement with the reference value, 153 ± 8 Bq kg -1 .

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Section: Samplesmentioning

confidence: 99%

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Aslan

Yücel

Kahraman

et al. 2014

J Radioanal Nucl Chem

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“…The material was sterilized by gamma-irradiation to enhance its longterm stability and to facilitate its transport across borders. [3] In a matrix material, source heterogeneity may influence the results obtained from different (sub-)samples, also in a supplementary comparison. Therefore, the (in)homogeneity of the three radionuclides was determined for the comparison material: 0.9 % ( 137 Cs), 2.1 % ( 40 K), and 1.8 % ( 90 Sr) for an aliquot mass of 50 g [5].…”

Section: Materials Used In Comparisonmentioning

confidence: 99%

“…Some of the data on the measurement of gamma-ray emitters in this comparison have been published earlier [3]. Where necessary, they are reproduced here in order to present a comprehensive report of the whole comparison CCRI(II)-S8.…”

Section: Introductionmentioning

confidence: 99%

Activity concentration measurements of ¹³⁷Cs, ⁹⁰Sr and ⁴⁰K in a wild food matrix reference material (Wild Berries) CCRI(II)-S8

et al. 2014

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In 2009, the CCRI approved a supplementary comparison to be organized by the IRMM as pilot laboratory for the activity concentrations of 137 Cs, 90 Sr and 40 K in a matrix material of dried bilberries. The organization of this comparison and the material and measurement methods used are described. The supplementary comparison reference value (SCRV) for each of the three radionuclides are given together with the degrees of equivalence of each participating laboratory with the SCRV for the specific radionuclide. The results of this supplementary comparison allow the participating NMIs/designated institutes to declare calibration and measurement capabilities (CMCs) for the given radionuclides in a similar type of food matrix, an important aspect seen the relatively few supplementary comparisons for activity in matrix materials organized so far.

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“…The relative water content of the six samples, determined by using small sample aliquots (each with a mass of about 0.5 g) was between 3.8% and 4.3%. The results of all the participants are under evaluation by the organizers; the preliminary results will be discussed and presented in a paper accepted at the ICRM2011 International Conference, in September 2011 [6]. The measurements done at LDPM regarded the determination of 90Sr content in the mixture.…”

Section: The Jrc-irmm Ccri(ii)-s8 Supplementary Comparison On 40k 1mentioning

confidence: 99%

Quality assurance for measurements of the radioactivity in the area of the“Horia Hulubei” National Institute for Physics and Nuclear Engineering, IFIN-HH

Stochioiu

Luca

Sahagia

et al. 2012

Journal of Environmental Radioactivity

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 This paper presents one part of the activities deployed by the Laboratory for Environment and Personnel Dosimetry (LDPM) of IFIN-HH, namely the radiological monitoring of the environment within the Institute's area and its surrounding influence zone, according to the program approved by the national regulatory body for nuclear activities, CNCAN. The representative reports regard the radioactive content of soil, surface and underground water, cultivated and spontaneous vegetation, aerosols and atmospheric fallout, sediments. The common requirement is that the measured quantities be precise and the reported values be reliable and credible. This goal is achieved by maintaining a Quality System, verified within the obtaining and maintaining of the laboratory accreditation, according the international standard ISO/IEC 17025:2005.The LDPM is accredited by the Romanian accreditation body, RENAR, member of the European Accreditation, EA and is designed by CNCAN as a notified testing laboratory. Many measurements were performed in collaboration with the Radionuclide Metrology Laboratory (RML) from IFIN-HH, RENAR accredited and CNCAN notified for calibration and for testing in the field of radioactivity measurement. This paper proposes a short presentation of the important aspects in our activity: (i) description of equipment, sampling methods, processing and measurement of environmental samples; (ii) validation of equipment and methods by participation in international and national proficiency tests; (iii) a five year follow chart, containing the results in measurement of samples; (iv) a recent application, with a wide impact in Romanian mass media: the credible daily report on the possible influence of Fukushima accident over the Romanian environmental radioactivity

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Results of an international comparison for the determination of radionuclide activity in bilberry material

Cited by 16 publications

References 5 publications

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Activity concentration measurements of ¹³⁷Cs, ⁹⁰Sr and ⁴⁰K in a wild food matrix reference material (Wild Berries) CCRI(II)-S8

Quality assurance for measurements of the radioactivity in the area of the“Horia Hulubei” National Institute for Physics and Nuclear Engineering, IFIN-HH

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Results of an international comparison for the determination of radionuclide activity in bilberry material

Cited by 16 publications

References 5 publications

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Determination of 90Sr via Cherenkov counting and modified Eichrom methods in bilberry matrix in the context of BIPM supplementary comparison

Activity concentration measurements of 137Cs, 90Sr and 40K in a wild food matrix reference material (Wild Berries) CCRI(II)-S8

Quality assurance for measurements of the radioactivity in the area of the“Horia Hulubei” National Institute for Physics and Nuclear Engineering, IFIN-HH

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Activity concentration measurements of ¹³⁷Cs, ⁹⁰Sr and ⁴⁰K in a wild food matrix reference material (Wild Berries) CCRI(II)-S8