title: Quality assurance in gamma-ray spectrometry of seabed sediments.
abstract: This article brings the results of a method for quality assurance in gamma-ray spectrometry of seabed sediments. Sediments were collected in selected locations of the South and Middle Adriatic Sea using grab and corer tools. Using our own experimental design, we determined the self-attenuation factors of selected samples. The article also discusses sources of uncertainty in gamma-ray spectrometry, which is another important issue in quality assurance. Together with self-attenuation correction sources of uncertainty are used to calculate the activity concentration for a given sample. The presented procedure demonstrates how a gamma-ray spectrometry experiment should be approached in order to properly account for errors and uncertainties specific to a particular sample.
authors.affiliation: Institute for Medical Research and Occupational Health, Zagreb, Croatia. petrinec@imi.hr
authors.forename: Branko
authors.initials: B
authors.lastname: Petrinec
authors.forename: Zdenko
authors.initials: Z
authors.lastname: Franić
authors.forename: Tomislav
authors.initials: T
authors.lastname: Bituh
authors.forename: Dinko
authors.initials: D
authors.lastname: Babić
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D017523:Croatia; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D009792:Oceans and Seas; D011786:Quality Control; D013051:Spectrometry, Gamma / Q000592:standards; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D014875:Water Pollutants, Radioactive