Savva Marilia | Fusion Technology Group (FTG)

Post-Doctoral Researcher

+30 210 6503713

Τechnical supervisor of research reactor decommissioning · NCSR "Demokritos"

Dr. Marilia I. Savva is a Post-doctoral researcher at the Fusion Technology Group (https://ftg.demokritos.gr/), of the Institute of Nuclear and Radiological Sciences, Technology, Energy & Safety at NCSR ‘Demokritos’, Athens, Greece, since 2017, working for the European Project of Thermonuclear Fusion (EUROfusion - https://www.euro-fusion.org/), focusing on experimental measurements and neutronic calculations for fusion reactors, neutron activation analysis experiments and gamma spectrometry. Her scientific interests include also computations studies using Monte Carlo techniques for the simulation of radiation fields. She graduated from the School of Mechanical Engineering of the National Technical University of Athens in 2009 with grade 8.31/10 and she obtained her PhD from the same University in 2017 entitled “Development and implementation of techniques for the determination of very low activities of radioactive trace elements in environmental samples”. For her research she received the 1st Metrology Award from the HellasLab Association. She is the main author or co-author of 17 publications in scientific journals, 18 contributions in conference proceedings and 11 technical reports.

Publications

2025

Villari, R., Litaudon, X., Mailloux, J., Dentan, M., Fonnesu, N., Ghani, Z., Packer, L. W., Rimini, F., Vila, R., Afanasenko, R., Alguacil, J., Batistoni, P., Beaumont, P., Bradnam, S. C., Carman, P., Catalan, J. P., Cecchetto, M., Colangeli, A., Croft, D., … Wójcik-Gargula, A., & the JET contributors (2025). Overview of deuterium-tritium nuclear operations at JET. Fusion Engineering and Design, 217, 115133. doi:10.1016/j.fusengdes.2025.115133

Kourgiantakis, R., Vasilopoulou, T., Diakaki, M., Kokkoris, M., Savva, M. I., & Stamatelatos, I.-E. (2024). Radiological characterization of ITER materials. HNPS Advances in Nuclear Physics, 30, 219–222. doi:10.12681/hnpsanp.6299

Lazaraki, D., Kalamara, A., Savva, M. I., & Vasilopoulou, T. (2024). Gamma-spectroscopic analysis of NORM samples. HNPS Advances in Nuclear Physics, 30, 223–226. doi:10.12681/hnpsanp.6300

Chatzikos, V., Savva, M. I., Vasilopoulou, T., Stamatelatos, I. E., Terentyev, D., Stankovskiy, A., Patronis, N., & Mergia, K. (2025). Experimental validation of transmutation products calculations in neutron irradiated tungsten. Fusion Engineering and Design, 215, 115012. doi:10.1016/j.fusengdes.2025.115012 [Accepted manuscript]

2024

Packer, L. W., Batistoni, P., Bearcroft, C., Bradnam, S. C., Eardley, E., Fabbri, M., Fonnesu, N., Gilbert, M. R., Ghani, Z., Gorzkiewicz, K., Grove, C. L., Kierepko, R., Łaszyńska, E., Lengar, I., Litaudon, X., Loreti, S., Mietelski, J. W., Pillon, M., Savva, M. I., Shand, C.-R., Stamatelatos, I.-E., Turner, A.N., Vasilopoulou, T., Villari, R., Wójcik-Gargula, A. & Žohar, A. (2024). ITER materials irradiation within the D–T neutron environment at JET: post-irradiation radioactivity analysis following the DTE2 experimental campaign. Nuclear Fusion, 64 (10), 106059. doi:10.1088/1741-4326/ad6f29 [PDF]

Litaudon, X., Fantz, U., Villari, R., Toigo, V., Aumeunier, M. H., Autran, J. L., Batistoni, P., Belonohy, E., Bradnam, S., Cecchetto, M., Colangeli, A., Dacquait, F., Dal Bello, S., Dentan, M., De Pietri, M., Eriksson, J., Fabbri, M., Falchetto, G., Figini, L., Figueiredo, J., Flammini, D., Fonnesu, N., Frassinetti, L., Galdón-Quiroga, J., Garcia-Alia, R., Garcia-Munoz, M., Ghani, Z., Gonzalez-Martin, J., Grelier, E., Di Grazia, L., Grove, B., Grove, C.L., Gusarov, A., Heinemann, B. Hialmarsoon, A., Hyvärinen, O., Ioannou-Sougleridis, V., Jones, L., Kim, H.-T., Kłosowski, M., Kocan, M., Kos, B., Kos, L., Kotnik, D., Laszynska, E., Leichtle, D., Lengar, I., Leon-Gutierrez, E., López-Revelles, A.J., Loreti, S., Loughlin, M., Marcuzzi, D., Mcclements, K.G., Mariano, G., Mattei, M., Mergia, K., Mietelski, J., Mitteau, R., Moindjie, S., Munteanu, D., Naish, R., Noce, S., Packer, L.W., Pamela, S., Pampin, R., Pau, A., Peacock, A., Peluso, E., Peneliau, Y., Peric, Radulović, J., V., Ricci, D., Rimini, F., Sanchis-Sanchez, L., Sauvan, P., Savva, M.I., Serianni, G., Shand, C.R., Snicker, A., Snoj, L., Stamatelatos, I.E., Štancar, Ž., Terranova, N., Vasilopoulou, T., Vila, R., Waterhouse, J., Wimmer, C., Wünderlich, D., Žohar, A., EUROfusion Tokamak Exploitation Team, NBTF Team, & JET Contributors (2024). EUROfusion contributions to ITER nuclear operation. Nuclear Fusion, 64 (11), Article 112006. doi:10.1088/1741-4326/ad346e [PDF]

Lépy, M.-C., Thiam, C., Anagnostakis, M., Cosar, C., de Blas, A., Dikmen, H., Duch, M. A., Galea, R., Ganea, M. L., Hurtado, S., Karfopoulos, K., Luca, A., Lutter, G., Mitsios, I., Persson, H., Potiriadis, C., Röttger, S., Salpadimos, N., Savva, M. I., Sima, O, Thanh, T.-T., Townson, R.-W.,Vargas, A., Vasilopoulou, T., Verheyen, L. & Vidmar, T. (2024). A benchmark for Monte Carlo simulations in gamma-ray spectrometry Part II: True coincidence summing correction factors. Applied Radiation and Isotopes, 204, 111109. doi:10.1016/j.apradiso.2023.111109

Chasapoglou, S., Kokkoris, M., Vlastou, R., Diakaki, M., Michalopoulou, V., Kalamara, A., Gkatis, G., Stamatopoulos, A., Axiotis, M., Harissopulos, S., Lagoyannis, A., Savva, M. I., Vasilopoulou, T., Lederer-Woods, C., Patronis, N., & Kaperoni, K. (2024). On the accuracy of cross-section measurements of neutron-induced reactions using the activation technique with natural targets: The case of Ge at En = 17.9 MeV. Applied Radiation and Isotopes, 203, 111077. doi:10.1016/j.apradiso.2023.111077

2023

Chasapoglou, S., Vlastou, R., Kokkoris, M., Diakaki, M., Michalopoulou, V., Gkatis, G., Stamatopoulos, A., Axiotis, M., Harissopoulos, S., Lagoyannis, A., Savva, M. I., Stamatelatos, I. E., Vasilopoulou, T., & Lederer-Woods, C. (2023). Cross Section Measurements of (n,x) Reactions at 17.9 and 18.9 MeV Using Highly Enriched Ge Isotopes. EPJ Web of Conferences, 284, 01003. doi:10.1051/epjconf/202328401003 [PDF]

M.I. Savva, S.C. Bradnam, T. Vasilopoulou, C.R. Nobs, K. Mergia, L.W. Packer, I.E. Stamatelatos and JET Contributors. (2023). Application of VERDI detectors for ITER materials activation product inventory characterization. Fusion Engineering and Design 191, 113559 doi:10.1016/j.fusengdes.2023.113559

2022

Savva, M. I., Vasilopoulou, T., Nobs, C. R., Packer, L. W., & Stamatelatos, I. E. (2022). Compton Suppressed Gamma Spectrometry for activation analysis of materials irradiated at JET. HNPS Advances in Nuclear Physics, 28, 211–214. doi:10.12681/hnps.3599

2021

Georgali, E., Patronis, N., Anastasiadis, A., Aslanoglou, X., Axiotis, M., Chasapoglou, S., Eleme, Z., Harissopulos, S., Kalamara, A., Kokkoris, M., Lagoyannis, A., Mitsi, E., Savva, M. I., Stamatelatos, I. E., Vasilopoulou, T., & Vlastou, R. (2021). Cross-section measurements of the 156Dy(n,2n)155Dy reaction at neutron energies higher than 17 MeV. Phys. Rev. C, 104 (6), 064603. doi:10.1103/PhysRevC.104.064603

Žohar, A., Lengar, I., Batistoni, P., Conroy, S., Čufar, A., Kierepko, R., Kos, B., Loreti, S., Mietelski, J. W., Nobs, C. R., Packer, L. W., Pillon, M., Radulović, V., Savva, M. I., Snoj, L., Stamatelatos, I. E., Štancar, Ž., Vasilopoulou, T., Wójcik-Gargula, A., & JET Contributors (2021). Long Term Neutron Activation in JET DD Operation. EPJ Web of Conferences, 253, 03005. doi:10.1051/epjconf/202125303005 [PDF]

Packer, L. W., Batistoni, P., Bekris, N., Bradnam, S. C., Fabbri, M., Ghani, Z., Gilbert, M. R., Kierepko, R., Łaszyńska, E., Leichtle, D., Lengar, I., Loreti, S., Mietelski, J. W., Nobs, C. R., Pillon, M., Savva, M. I., Stamatelatos, I. E., Vasilopoulou, T., Wójcik-Gargula, A., Zohar, A. & JET Contributors. (2021). Technological exploitation of the JET neutron environment: progress in ITER materials irradiation and nuclear analysis. Nuclear Fusion, 61 (11), 116057. doi:10.1088/1741-4326/ac2a6b [Accepted manuscript]

M.I. Savva, T. Vasilopoulou, I.E. Stamatelatos, K. Mergia, S. Messoloras, I. Michelakaki, Z. Ghani, C.R. Nobs, L.W. Packer and JET Contributors. (2021). Application of VERDI detectors for neutron fluence measurements during the JET 2019 Deuterium-Deuterium campaign, Fusion Engineering and Design 166, 112286 https://doi.org/10.1016/j.fusengdes.2021.112286

2020

Georgali, E., Patronis, N., Anastasiadis, A., Aslanoglou, X., Axiotis, M., Eleme, Z., Harissopulos, S., Kalamara, A., Karfopoulos, K., Kokkoris, M., Lagoyannis, A., Peoviti, M., Potiriadis, C., Savva, M. I., Stamatelatos, I. E., Stamati, M. E., Stamatopoulos, A., Vagena, E., Vasilopoulou, T., & Vlastou, R. (2020). Experimental study of the 165Ho(n,2n) reaction: Cross section measurements for the population of the 164Ho ground state and isomeric state from the threshold up to 20 MeV. Phys. Rev. C, 102 (3), 034610. doi:10.1103/PhysRevC.102.034610

Sima, O., De Vismes Ott, A., Dias, M. S., Dryak, P., Ferreux, L., Gurau, D., Hurtado, S., Jodlowski, P., Karfopoulos, K., Koskinas, M. F., Laubenstein, M., Lee, Y. K., Lépy, M. C., Luca, A., Menezes, M. O., Moreira, D. S., Nikolič, J., Peyres, V., Saganowski, P., Savva, M.I., Semmler, R., Solc, J., Thanh, T.T., Tyminska, K., Tyminski, Z., Vidmar, T., Vukanac, I., Yucel, H. (2020). Consistency test of coincidence-summing calculation methods for extended sources. Applied Radiation and Isotopes, 155, 108921. doi:10.1016/j.apradiso.2019.108921

2019

Lépy, M. C., Thiam, C., Anagnostakis, M., Galea, R., Gurau, D., Hurtado, S., Karfopoulos, K., Liang, J., Liu, H., Luca, A., Mitsios, I., Potiriadis, C., Savva, M. I., Thanh, T. T., Thomas, V., Townson, R. W., Vasilopoulou, T., & Zhang, M. (2019). A benchmark for Monte Carlo simulation in gamma-ray spectrometry. Applied Radiation and Isotopes, 154, 108850. doi:10.1016/j.apradiso.2019.108850

C.R. Nobs, L.W. Packer, P. Batistoni, B. Colling, Z. Ghani, M. Gilbert, S. Loreti, K. Mergia, S. Messoloras, I. Michelakaki, M. Pillon, M.I. Savva, I.E. Stamatelatos, K. Triantou, T. Vasilopoulou. (2019) Neutron Spectrum Unfolding for the Development of a Novel Neutron Detector for Fusion, Fusion Engineering and Design 146, 2658-2662, doi:10.1016/j.fusengdes.2019.04.074 [Accepted manuscript]

M.I. Savva, T. Vasilopoulou, C.R. Nobs, P. Batistoni, B. Colling, Z. Ghani, M. Gilbert, S. Loreti, K. Mergia, S. Messoloras, I. Michelakaki, L.W. Packer, M. Pillon, I.E. Stamatelatos, K. Triantou. (2019). VERDI detector benchmark experiment at the ENEA 14 MeV Frascati Neutron Generator, Fusion Engineering and Design 146, Part B, 1877-1881, doi:10.1016/j.fusengdes.2019.03.055 [Accepted manuscript]