caa a22 4500 469111763 CHVBK 20180323133113.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF02038351 doi (NATIONALLICENCE)springer-10.1007/BF02038351 Studies of the vertical distribution of134Cs,137Cs,238Pu,239, 240Pu,241Pu,241Am and210Pb in ombrogenous mires at mid-latitudes [Elektronische Daten] [P. Mitchell, W. Schell, A. McGarry, T. Ryan, J. Sanchez-Cabeza, A. Vidal-Quadras] Six peat cores taken from three unmodified blanket and raised bogs in Ireland were sectioned and analyzed for a range of radionuclides including134Cs,137Cs,238Pu,239Pu,241Am, and210Pb.134Cs and137Cs were measured by high resolution gamma-spectrometry, while the transuranium nuclides were determined after chemical separation by alpha-spectrometry.241Pu, present on the electroplated discs together with Pu(α), was measured directly by low-level liquid scintillation counting. Core chronologies were established by measuring the unsupported210Pb component using low energy photon spectrometry (LEPS). From the resulting profiles, relaxation depths and migration rates for the above mentioned radionuclides have been determined and differences in the values of these parameters interpreted.238Pu/239,240Pu and241Pu/239,240Pu ratios have been examined carefully and are discussed in some detail. Finally, the contribution from Chernobyl to the total radiocaesium inventory in each core has been established using the134Cs/137Cs ratio observed in the initial fallout from Chernobyl. Akadémiai Kiadó, 1992 Mitchell P. Department of Envirommental Physics, University College, Dublin, (Ireland) aut Schell W. Department of Radiation Health, University of Pittsburgh, (USA) aut McGarry A. Department of Envirommental Physics, University College, Dublin, (Ireland) aut Ryan T. Department of Envirommental Physics, University College, Dublin, (Ireland) aut Sanchez-Cabeza J. Department of Radiation Health, University of Pittsburgh, (USA) aut Vidal-Quadras A. Servicio de Fisica de Las Radiaciones, Universidad Autonoma de Barcelona, (Spain) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 156/2(1992-01-01), 361-387 0236-5731 156:2<361 1992 156 10967 https://doi.org/10.1007/BF02038351 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02038351 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mitchell P. Department of Envirommental Physics, University College, Dublin, (Ireland) aut NATIONALLICENCE 700 1- Schell W. Department of Radiation Health, University of Pittsburgh, (USA) aut NATIONALLICENCE 700 1- McGarry A. Department of Envirommental Physics, University College, Dublin, (Ireland) aut NATIONALLICENCE 700 1- Ryan T. Department of Envirommental Physics, University College, Dublin, (Ireland) aut NATIONALLICENCE 700 1- Sanchez-Cabeza J. Department of Radiation Health, University of Pittsburgh, (USA) aut NATIONALLICENCE 700 1- Vidal-Quadras A. Servicio de Fisica de Las Radiaciones, Universidad Autonoma de Barcelona, (Spain) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 156/2(1992-01-01), 361-387 0236-5731 156:2<361 1992 156 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer