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National Technical University of Athens
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Journal articles

  1. Uncertainty Assessment Method for the Cs-137 Fallout Inventory and Penetration Depth

    G.N. Papadakos, D.J. Karangelos, N.P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Journal of Environmental Radioactivity; In Press

  2. Determination of True Coincidence Correction factors using Monte-Carlo simulation techniques

    D.A. Chionis, M.I. Savva, K.L. Karfopoulos, and M.J. Anagnostakis

    Nuclear Technology & Radiation Protection: Year 2014, Vol. 29, Suppl., pp. S8-S13

  3. Test spectra experimental construction for evaluating gamma-spectrometry computer codes for the U-235 determination

    K.L. Karfopoulos, D.J. Karangelos, M.J. Anagnostakis and S.E.Simopoulos

    Nuclear Technology & Radiation Protection: Year 2014, Vol. 29, Suppl., pp. S1-S7

  4. Installation and performance testing of an XtRa NaI(Tl) Compton Suppression System at the NED-NTUA

    M.I. Savva, K.L. Karfopoulos, D.J. Karangelos, M.J. Anagnostakis and S.E. Simopoulos

    Applied Radiation and Isotopes 87, 2014, pp. 361-364

  5. Phosphoric acid as an Uranium complexant in kinetic phosphorimetry

    A.V. Efstathopoulos, K.L. Karfopoulos, D.J. Karangelos, N.P. Petropoulos, E.P. Hinis and S.E. Simopoulos

    Journal of Radioanalytical and Nuclear Chemistry, 292(1), 2012, pp. 7-17

  6. Study of the Supporting System for the clic two-beam module

    N. Gazis, G. Riddone, H. Mainaud, D. Gudkov, A. Samoshkin, S. Simopoulos, E. Hinis and T. Alexopoulos

    Journal of Engineering Science and Technology Review 4

  7. Monitoring of Be-7 atmospheric concentration using short term measurements

    S.M.A. Papandreou, M.I. Savva , K.L. Karfopoulos, D.J. Karangelos , M.J. Anagnostakis and S.E. Simopoulos

    Nuclear Technology & Radiation Protection 26(2), 2011, pp. 101-109

  8. Determination Of Uranium isotope concentrations in precipitation in the vicinity of lignite-fired power plants

    N.K. Papadopoulos, A.V. Efstathopoulos, D.J. Karangelos and N.P. Petropoulos

    Nuclear Technology & Radiation Protection, 26(1), 2011, pp 1-10

  9. Calibration of an in-situ BEGe detector using semi-empirical and Monte Carlo techniques

    K. Agrafiotis, K.L. Karfopoulos, M.J. Anagnostakis

    Applied Radiation and Isotopes 69(8), 2011, pp. 1151-1155

  10. Radiological and INAA determined characteristics of size-fractionated fly ash

    T.K. Peppas, K.L. Karfopoulos, D.J. Karangelos, P.K. Rouni, M.J. Anagnostakis, and S.E. Simopoulos

    Journal of Hazardous Materials, 181(1-3) 255-262

  11. A simple mechanistic model for particle penetration and plugging in tubes and cracks

    D.Mitrakos, S.Chatzidakis, E.P. Hinis, L.E. Herranz, F. Parozzi and C. Housiadas

    Nuclear Engineering and Design 238 (2008) 3370-3378

  12. Sectional Modeling of Aerosol Dynamics in Multi-Dimensional Flows

    D.Mitrakos, E. Hinis and C.Housiadas

    Aerosol Science and Technology, 41:12,1076-1088

  13. Parameters affecting full energy peak efficiency determination during Monte Carlo simulation

    K.L. Karfopoulos and M.J. Anagnostakis

    ICRM 2009, 3-7 September 2007, Cape Town, South Africa
    Applied Radiation and Isotopes 68 (7-8), 2010, pp. 1435-1437

  14. Intercomparison of methods for coincidence summing corrections in gamma-ray spectrometry

    M.-C. Lepy, T. Altzitzoglou, M.J. Anagnostakis, D. Arnold, M. Capogni, A. Ceccatelli, P. De Felice, R. Dersch, P. Dryak, A. Fazio, L. Ferreux, M. Guardati, J.B. Han, S. Hurtado, K.L. Karfopoulos, S. Klemola, P. Kovar, K.B. Lee, R. Ocone, O. Ott, O. Sima, S. Sudar, A. Svec, Chau Van Tao, Tran Thei Thanho and T. Vidmar

    ICRM 2009, 3-7 September 2007, Cape Town, South Africa
    Applied Radiation and Isotopes 68 (7-8), 2010, pp. 1407-1412

  15. Passive, integrated measurement of radon using 5A synthetic zeolite and blue silica gel

    J.S. Paschalides, G.S. Marinakis and N.P. Petropoulos

    Applied Radiation and Isotopes 68(1):155-163, 2010

  16. An intercomparison of Monte Carlo codes used in gamma-ray spectrometry

    T. Vidmar, I. Aubineau-Laniece, M.J. Anagnostakis, D. Arnold, R. Brettner-Messler, D. Budjas, M. Capogni, M.S. Dias, L-E. De Geer, A. Fazio, J. Gasparro, M. Hult, S. Hurtado, M. Jurado Vargas, M. Laubenstein, K.B. Lee, Y-K. Lee, M-C. Lepy, F-J. Maringer, V. Medina Peyres, M. Mille, M. Moralles, S. Nour, R. Plenteda, M.P. Rubio Montero, O. Sima, C. Tomei and G. Vidmar

    ICRM 2007, 3-7 September 2007, Cape Town, South Africa
    Applied Radiation and Isotopes 66(6-7):764-768, 2008

  17. Gamma-spectroscopic determination of 235U in environmental samples using Low Energy Germanium detectors (LEGe)

    K.L. Karfopoulos, D.J. Karangelos, M.J. Anagnostakis and S.E.Simopoulos

    ICRM 2005, 5-9 September 2005, Oxforf UK
    Applied Radiation and Isotopes 64:1350, 2006

  18. Quality characteristics of Greek fly ashes and potential uses

    P. Grammelis, G. Skodras, E. Kakaras, D.J. Karangelos, N.P. Petropoulos, E.P. Hinis, M.J. Anagnostakis and S.E.Simopoulos

    Fuel Processing Technology 88(1):77-85, 2006

  19. Effects of biomass co-firing with coal on ash properties. Part II: Leaching, toxicity and radiological behaviour

    P. Grammelis, G. Skodras, E. Kakaras, D.J. Karangelos, N.P. Petropoulos, E.P. Hinis, M.J. Anagnostakis and S.E.Simopoulos

    Fuel 85(16):2316-2322, 2006

  20. Radon-in-water secondary standard preparation

    D.J. Karangelos, N. P. Petropoulos, E.P. Hinis and S.E. Simopoulos

    Radioactivity In the Environment 7:1025-1029, 2005

  21. Data leading to the investigation of a relation between seismic activity and Radon daughters concentration outdoors

    D.J. Karangelos, N. P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Radioactivity In the Environment 7:187-197, 2005

  22. Uranium-238 and its daughter products in Greek surface soils

    M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Radioactivity In the Environment 7:175-186, 2005

  23. Radioenvironmental survey of the Megalopolis power plants fly-ash deposits

    D.J. Karangelos, P.K. Rouni, N.P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Radioactivity In the Environment 7:1025-1029, 2005

  24. Determination of depleted uranium in environmental samples by gamma-spectroscopic techniques

    D.J. Karangelos, M.J. Anagnostakis, E.P. Hinis, S.E. Simopoulos and Z.S. Zunic

    Journal of Environmental Radioactivity 76(3):295-310, 2004

  25. A preliminary intercomparison of gamma-ray spectrometry on building materials

    M. J. Anagnostakis, C. Bolzan, P. De Felice, A. Fazio, G. Grisanti, S. Risica, T. Turtiainen and E. van der Graaf

    Applied Radiation and Isotopes 61(2-3):381-388, 2004

  26. Radiological characteristics and investigation of the radioactive equilibrium in the ashes produced in lignite-fired power plants

    D.J. Karangelos, N.P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Journal of Environmental Radioactivity 77(3):233-246, 2004

  27. PHOTON ATTENUATION, NATURAL RADIOACTIVITY CONTENT AND RADON EXHALATION RATE OF BUILDING MATERIALS

    N.P.Petropoulos, M.J. Anagnostakis and S.E.Simopoulos

    Journal of Environmental Radioactivity 61:257-269, 2002

  28. EXPERIMENTAL INVESTIGATION OF THE REWETTING PROCESS AT PRESSURES OF 1-7 BAR

    E.P.Hinis and S.E.Simopoulos

    Kerntechnik 68 (2001) 1-2

  29. DETERMINATION OF DEPLETED URANIUM IN ENVIRONMENTAL SAMPLES BY GAMMA-SPECTROSCOPIC TECHNIQUES

    M.J. Anagnostakis, E.P. Hinis, D.J. Karangelos, N.P. Petropoulos, P.K. Rouni, S.E. Simopoulos and Z.S. Zunic

    Archive of Oncology 2001;9(4):231-6

  30. Geographical mapping and associated fractal analysis of the long-lived Chernobyl fallout radionuclides in Greece

    N.P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    Journal of Environmental Radioactivity 53(2001) 59-66

  31. RADIOENVIRONMENTAL SURVEY OF THE MEGALOPOLIS LIGNITE FIELD BASIN

    P.K. Rouni, N.P. Petropoulos, M.J. Anagnostakis, E.P. Hinis and S.E. Simopoulos

    The Science of the Total Environment, Vol. 272, pp. 261-272, 2001

  32. BUILDING MATERIALS RADON EXHALATION RATE: ERRICCA INTERCOMPARISON EXERCISE RESULTS

    N.P.Petropoulos, M.J. Anagnostakis and S.E.Simopoulos

    Radon in the Living Environment, Athens, 19-23 April 19999
    The Science of the Total Environment 272(1-3):109-118

  33. INTEGRATED NATURAL RADIATION EXPOSURE STUDIES IN STABLE YUGOSLAV RURAL COMMUNITIES

    Z.S. Zunic, J.P. McLaughlin, C. Walsh, A. Birovljev, S.E. Simopoulos, B. Jakupi, V. Gordanic, M. Demajo, F. Trotti, R. Falk, H. Vanmarcke, J. Paridaens and K. Fujimoto

    Radon in the Living Environment, Athens, 19-23 April 1999
    The Science of the Total Environment 272(1-3):253-260

  34. AN EXPERIMENTAL-NUMERICAL METHOD FOR THE EFFICIENCY CALIBRATION OF LOW ENERGY GERMANIUM DETECTORS

    M.J. Anagnostakis and S.E.Simopoulos

    NRE VI, International Symposium, June 5-9, 1995, Montreal, ENVIRONMENT INTERNATIONAL, Vol. 22, Suppl. 1, pp. S93-S99,1996

  35. NATURAL RADIOACTIVITY CONTENT OF GREEK CIGARETTES

    S.Katsanevakis, N.P. Petropoulos, E.P. Hinis, S.E.Simopoulos, A.Louizi and C.Proukakis

    NRE VI, International Symposium, June 5-9, 1995, Montreal, ENVIRONMENT INTERNATIONAL, Vol. 22, Suppl. 1, pp. S375-S377,1996

  36. Cs-137 CHERNOBYL FALLOUT IN GREECE AND ITS ASSOCIATED RADIOLOGICAL IMPACT

    N.P. Petropoulos, E.P. Hinis and S.E.Simopoulos

    NRE VI, International Symposium, June 5-9, 1995, Montreal, ENVIRONMENT INTERNATIONAL, Vol. 22, Suppl. 1, pp. S369-S373,1996

  37. NATURAL RADIOACTIVITY MAPPING OF GREEK SURFACE SOILS

    M.J. Anagnostakis, E.P. Hinis, S.E.Simopoulos and M.G. Angelopoulos

    NRE VI, International Symposium, June 5-9, 1995, Montreal, ENVIRONMENT INTERNATIONAL, Vol. 22, Suppl. 1, pp. S3-S8,1996

  38. EFFECT OF DIETARY INTAKE ON THE Cs-137 RETENTION MODEL

    A.Louizi, C. Proukakis, S.E.Simopoulos and M.G. Angelopoulos

    Health Physics, Vol. 61, No. 6 (December), pp. 885-888, 1991

  39. SOIL SAMPLING AND Cs-137 ANALYSIS OF THE CHERNOBYL FALLOUT IN GREECE

    S.E.Simopoulos

    Appl. Radiat. Isot. Vol. 40, No. 7, pp. 607-613, 1989 Int. J. Radiat. Appl. Instrum. Part A

  40. NATURAL RADIOACTIVITY RELEASES FROM LIGNITE POWER PLANTS IN GREECE

    S.E.Simopoulos and M.G. Angelopoulos

    Journal of Environmental Radioactivity 5:379-389, 1987

  41. ON THE EMANATION OF RADON INTO THE PORES OF A SOLID MATERIAL

    S.E.Simopoulos and D.J. Leonidou
    Nuclear Engineering Section
    National Technical University of Athens

    Atomkernenergie-Kerntechnik, 49(1/2):105-106, 1986

  42. THE EFFECT OF PRECURSORY COOLING ON THE REWETTING RATE

    S.E.Simopoulos

    Atomkernenergie-Kerntechnik, 49(1/2):37-42, 1986

  43. A simple theoretical investigation of the effect of a moderator present in the central region of a hollow fuel element

    A. Kakatsios and D. Leonidou

    Atomkernenergie/Kerntechnik vol. 42 no.3 (1983), p.p. 193-198

  44. The effect of a moderator in the central region of a hollow fuel element as a function of the neutron spectrum composition

    N.Demetrakopoulos and D.Leonidou

    Atomkernenergie/Kerntechnik vol. 39 no.4 (1981), p.p. 237-238

  45. The effect of the mass of a moderator positioned in the central region of a hollow fuel element

    S.E.Simopoulos and D.J. Leonidou

    Atomkernenergie/Kerntechnik vol. 38 no.2 (1981), p.p. 107-108

  46. Radial fine flux distribution in AGR-type clusters of fuel pins

    G. Koutzoukos and D. Leonidou

    Atomkernenergie/Kerntechnik vol. 37 no.4 (1981), p.p. 257-265

  47. Age of Am-Be neutrons to indium resonance in water

    S.E.Simopoulos and D.J.Leonidou

    Atomkernenergie/Kerntechnik vol. 37 no.4 (1981), p.p. 296-298

  48. On the effect of a moderator in the central region of a hollow fuel element (Technical Note)

    S.Simopoulos and D. Leonidou

    Annals of Nuclear Energy Vol. 7, pp. 519 to 552

  49. The Exponential Pile of the Laboratory of Nuclear Engineering, National Technical University of Athens

    S.E.Simopoulos and D. Leonidou

    Technika Chronika, April-May-June 1979, pp. 17-28

  50. The Exponential Pile of the Laboratory of Nuclear Engineering, National Technical University of Athens

    S.E.Simopoulos and D. Leonidou

    Technika Chronika, April-May-June 1979, pp. 17-28

  51. Flux Measurements in an Exponential Pile

    S.Simopoulos and D. Leonidou

    Journal of the Institution of Nuclear Engineers, 17(1), 1976, p.p. 171-175

  52. Theoretical aspects regarding Proton Recoil Counters

    D.J. Leonidou

    Journal of the Institution of Nuclear Engineers, 14(2), 1973, p.p. 39-41

  53. Dependence of propagation phenomena on the reactivity of a subcritical assembly

    D.J. Leonidou

    Atomkernenergie Bd. 19 (1972) Lfg.

  54. Application of the Pulsed Neutron Technique to the Calibration of the Control Rods of Queen Mary College (Double-Core) Reactor

    D.J. Leonidou and W.K. Mansfield

    Nuclear Energy, March/April 1968 p.53