Evaluation of gross radioactivity in foodstuffs
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Ö. S. Zorer
Abstract
The paper presents the results of radiological investigations of food products sampled in the summer and fall of 2011 and 2012 in different parts of Van, Turkey. Gross radioactivity measurements in food products were evaluated. Food items were divided into eight groups: (1) water, (2) fish, (3) cheese products, (4) fruits, (5) vegetables, (6) herbs, (7) walnut and (8) rock salt. The levels of the gross alpha and gross beta radioactivity in all food samples varied widely ranging from 0.070 to 10.885 Bq/g and from 0.132 to 48.285 Bq/g on dry mass basis, respectively. In one sample, gross alpha and gross beta activity concentrations were found to be relatively high according to the other samples and in all samples, the gross alpha radioactivity was measured lower than the gross beta radioactivity. The gross α and gross β activities were measured by using α/β counter of the multi-detector low background system (PIC MPC-9604).
Kurzfassung
Dieser Beitrag stellt die Ergebnisse radioökologischer Untersuchungen von Nahrungsmitteln vor, die 2011–2012 im Sommer und Herbst in den verschiedenen Gebieten von Van in der Türkei durchgeführt wurden. Dabei wurde die Gesamtaktivität in Nahrungsmitteln ausgewertet. Dazu wurden die Nahrungsmittel in 8 Gruppen eingeteilt: (1) Wasser, (2) Fisch, (3) Käseprodukte, (4) Früchte, (5) Gemüse, (6) Kräuter, (7) Walnüsse, (8) Steinsalz. Die Höhe der Gesamt-Alpha- und -Beta-Aktivität aller untersuchten Nahrungsmitttel variiert zwischen 0.070 und 10.885 Bq/g und zwischen 0.132 in 48.285 Bq/g Trockenmasse. In einer Probe wurden im Vergleich zu den anderen Proben relativ hohe Alpha- und Beta-Aktivitätskonzentrationen gefunden und in allen gemessenen Proben lag die Gesamt-Alpha-Aktivität niedriger als die Gesamt-Beta-Aktivität. Die Gesamt-Alpha- und -Beta-Aktivitäten wurden mit Hilfe des Multidetektorsystems (PIC MPC-9604) gemessen.
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© 2015, Carl Hanser Verlag, München
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Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Evaluation of A-dependence of cross-sections for light charged particle production in proton induced reactions at intermediate energies
- Sensitivity study with respect to direction of ADI method during re-flooding in AHWR
- Experimental investigation of thermal mixing phenomena in a tee pipe
- Flow impinging effect of critical heat flux and nucleation boiling heat transfer on a downward facing heating surface
- Operating experience feedback from safety significant events at research reactors
- Review of regulatory requirements relevant to calibration of monitoring instruments in research reactors
- The dust characteristics in the collisional plasma sheath at the presence of external magnetic field
- Shamir Secret Sharing Scheme with Dynamic Access Structure (SSSDAS): case study on nuclear power plant
- Criticality calculations with PN approximation for certain scattering parameters of Anlı-Güngör and Henyey-Greenstein phase functions in spherical geometry
- An analytical approach for a nodal formulation of a two-dimensional fixed-source neutron transport problem in heterogeneous medium
- Evaluation of gross radioactivity in foodstuffs
- Development of gamma spectroscopy employing NaI(Tl) detector 3 inch × 3 inch and readout electronic of flash-ADC/FPGA-based technology
