[1] Korea Inst Nucl Safety KINS, NORM Safety Ctr, Daejeon 34142, South Korea
[2] Hanyang Univ, Dept Chem Engn, Seoul 04763, South Korea
[3] Korea Res Inst Stand & Sci KRISS, Daejeon 34113, South Korea
[4] Univ Sci & Technol UST, Daejeon 34113, South Korea
[5] Korea Atom Energy Res Inst KAERI, Daejeon 34057, South Korea
[6] Korea Fdn Nucl Safety KoFONS, Gyeonggi Do 13493, South Korea
[7] Korea Basic Sci Inst KBSI, Ctr Res Equipment, Cheongju 28119, South Korea
[8] Int Atom Energy Agcy IAEA, Environm Labs, MC-98000 Monte Carlo, Monaco
[9] NIST, Gaithersburg, MD 20899 USA
[10] Univ Southampton, Natl Oceanog Ctr, GAU Radioanalyt Labs GAU, 161-31 European Way, Southampton SO14 3ZH, Hants, England
[11] EICHROM EUROFINS Radioactivite EICHROM, Rue Maryse Bastie,Bat C, F-35170 Bruz, France
[12] KINS, NORM Safety Ctr, Daejeon, South Korea