title: In situ γ-ray spectrometry in the marine environment using full spectrum analysis for natural radionuclides.
abstract: The Full Spectrum Analysis approach was applied to obtain activity concentration estimations for in situ measurements in the marine environment. The 'standard spectra' were reproduced using the MCNP-CP code. In order to extract the activity concentrations, χ(2) minimization calculations were performed by implementing the MINUIT code. The method was applied to estimate the activity concentrations for measurements in the marine environment in three different test cases. The estimated activity concentrations were in good agreement with the experimentally derived ones within uncertainties.
authors.affiliation: Department of Physics, National Technical University of Athens, Zografou, Greece; Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece.
authors.forename: E G
authors.initials: EG
authors.lastname: Androulakaki
authors.affiliation: Department of Physics, National Technical University of Athens, Zografou, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Kokkoris
authors.affiliation: Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece.
authors.forename: C
authors.initials: C
authors.lastname: Tsabaris
authors.affiliation: Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece; Department of Monitoring and Research, Norwegian Radiation Protection Authority, Norway.
authors.forename: G
authors.initials: G
authors.lastname: Eleftheriou
authors.affiliation: Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece.
authors.forename: D L
authors.initials: DL
authors.lastname: Patiris
authors.affiliation: Department of Physics, National Technical University of Athens, Zografou, Greece; Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece.
authors.forename: F K
authors.initials: FK
authors.lastname: Pappa
authors.affiliation: Department of Physics, National Technical University of Athens, Zografou, Greece.
authors.forename: R
authors.initials: R
authors.lastname: Vlastou
mesh_terms: D000465:Algorithms; D002138:Calibration; D003198:Computer Simulation; D003535:Cyprus; D006115:Greece; D006801:Humans; D009010:Monte Carlo Method; D011834:Radiation Monitoring / Q000379:methods; D011868:Radioisotopes / Q000032:analysis*; D012623:Seawater / Q000032:analysis; D013051:Spectrometry, Gamma / Q000379:methods*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D011868:Radioisotopes; D014875:Water Pollutants, Radioactive
keywords: Full spectrum analysis; In situ radioactivity measurements; MCNP-CP; Marine environment; Monte carlo simulation