Zobrazeno 1 - 10
of 33
pro vyhledávání: '"F. K. Pappa"'
Autor:
F. K. Pappa, Stylianos Alexakis, Rosa Vlastou, M. Kokkoris, Christos Tsabaris, G. Eleftheriou, Dionisis L. Patiris, E.G. Androulakaki, Konstantinos Sarantakos, Aristides Prospathopoulos
Publikováno v:
Journal of Environmental Radioactivity. 204:12-20
A new medium resolution gamma-ray spectrometer consisting of a cerium bromide (CeBr3) crystal (2˝ x 2˝), is developed and optimized for radioactivity measurements in aquatic environments. This apparatus named GeoMAREA (Gamma-ray spectrometer for in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21ec038d1566f5543bfe8ce62f8b2563
https://doi.org/10.1016/j.jenvrad.2019.03.021
https://doi.org/10.1016/j.jenvrad.2019.03.021
Autor:
Dionisis L. Patiris, Effrosini G. Androulakaki, Christos Tsabaris, F. K. Pappa, G. Eleftheriou, M. Kokkoris, Alexandra Ioannidou, R. Vlastou
Publikováno v:
Environmental Science and Pollution Research. 26:27457-27469
Vertical variations of radionuclides, trace metals, and major elements were determined in two sediment cores, which were collected in the marine environment of Ierissos Gulf near Stratoni’s mining area. The enrichment factors (EFs) were also estima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cffedf58f0de01e18f0faa880a7e76e4
https://doi.org/10.1007/s11356-019-05921-5
https://doi.org/10.1007/s11356-019-05921-5
Autor:
Christos Tsabaris, G. Eleftheriou, George Melikatze, Gyongyi Ruzsa, F. K. Pappa, Nino Kapanadze, Effrosyni G. Androulakaki, Dionisis L. Patiris
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 321:169-181
Radioactivity measurements were performed, at the east (Georgia) and west (Romania) part of the Black Sea, for natural radionuclides and 137Cs in collected water and sediment samples using lab-based and in situ gamma-ray spectrometry. The activity co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17eacc9b03d389ed69a50737fb9d1457
https://doi.org/10.1007/s10967-019-06562-1
https://doi.org/10.1007/s10967-019-06562-1
Autor:
Alexandra Ioannidou, Christos Tsabaris, M. Kokkoris, G. Eleftheriou, R. Vlastou, Dionisis L. Patiris, F. K. Pappa, E.G. Androulakaki
Publikováno v:
Applied Radiation and Isotopes. 145:198-204
Natural radionuclides, present in mining materials, can exhibit elevated values, thus it is of great interest to study their dispersion in mining areas. Radionuclide spatial variations were determined in coastal surface sediments near the mining area
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd9897de0081d32f6ab97c4b43c33048
https://doi.org/10.1016/j.apradiso.2018.12.021
https://doi.org/10.1016/j.apradiso.2018.12.021
Autor:
Petros Leivadaros, Evangelia Krasakopoulou, Christos Tsabaris, G. Eleftheriou, F. K. Pappa, Stylianos Iliakis, Vassilis Zervakis, Heleni Kaberi
A review of the evolution of 137Cs activity concentrations in the Aegean Sea is presented almost 34 years after the Chernobyl accident. The data from field measurements are interpreted considering the different water masses present in the Aegean Sea,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f781b101d381812d0cae35cd829a5bc
https://doi.org/10.1007/698_2020_731
https://doi.org/10.1007/698_2020_731
Radioactivity and metal concentration measurements are provided at coastal areas of the Aegean Sea, assessing the anthropogenic impact as well as investigating natural phenomena. A summary of representative analysis combining the concentration of met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fa4402e00cf95caba4d57f9459fc3f6
https://doi.org/10.1007/698_2020_669
https://doi.org/10.1007/698_2020_669
Publikováno v:
Applied Radiation and Isotopes. 139:159-168
A methodology that extends the usability of low and medium resolution γ-ray detectors to a wide range of energies that appear in environmental radioactivity measurements is described. Results of the implementation of the methodology in the analysis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41639c3ef0d2123b5ed8e6c4f0353519
https://doi.org/10.1016/j.apradiso.2018.04.032
https://doi.org/10.1016/j.apradiso.2018.04.032
Autor:
Dionisis L. Patiris, Effrosini G. Androulakaki, V. Michalopoulou, Christos Tsabaris, R. Vlastou, G. Eleftheriou, Chrysoula Betsou, M. Kokkoris, F. K. Pappa
Publikováno v:
Environmental Science and Pollution Research. 25:30084-30100
Two sediment cores (coastal and offshore) and surface sediments were collected near an abandoned mine area in the marine environment of Oxygono Bay at Lavreotiki peninsula to investigate temporal and spatial variations among radionuclides and trace m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6aa47c8398ee6b9836c73dbbb304bc5
https://doi.org/10.1007/s11356-018-2984-0
https://doi.org/10.1007/s11356-018-2984-0
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 317:55-68
Heavy metals and radionuclides were investigated in the northern coastal zone of Ikaria Island. The collected sediment samples are sandy and they contain distinct heavy metal- and actinide-hosting minerals. All samples exhibit low U and Th content re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3819df093fd397618999fe8312656185
https://doi.org/10.1007/s10967-018-5843-z
https://doi.org/10.1007/s10967-018-5843-z
Autor:
Dimitra K. Papageorgiou, Effrosini G. Androulakaki, Dionisis L. Patiris, Christos Tsabaris, G. Eleftheriou, F. K. Pappa
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 316:655-671
Chronological records and sedimentation rates of coastal sediment cores from different aquatic environments of NE Mediterranean are reported. 210Pbex and 137Cs vertical profiles determined by means of gamma-ray spectrometry were utilized for the radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13318e322ee7e02cb8d1349c3bd2998c
https://doi.org/10.1007/s10967-018-5802-8
https://doi.org/10.1007/s10967-018-5802-8