Experimental physicist in applied physics and condensed-matter physics, with a background in theoretical and experimental nuclear physics. Research interests include the study of the single-particle dynamics and nuclear quantum effects in disordered and hydrogen-bonded systems; the measurement of neutron cross sections with applications to medical physics, radiation protection and engineering; the development of instrumentation for epithermal neutron spectroscopy with applications to cultural heritage; the adsorption and the catalysis of molecular hydrogen in porous materials to be used in green transports.
Responsible, between 2015 and 2021, for the scientific and instrumentation programmes of the VESUVIO spectrometer at the ISIS Neutron and Muon Souce (UK). ISIS is a Large Research Infrastructure where the international scientific community, submitting peer-reviewed experimental proposals, tackles themes spanning from applied physics to biology, and from cultural heritage to medicine and engineering.
Co-supervisor of MSc and PhD students in Physics, with theses related to neutron spectroscopy and instrumentation. Participation in teaching activities in the courses of Neutron Physics and Applications (Physics) and Physics (Biotechnologies), and within the Master in Physical Agents and radiation protection. Since 2011, participation in outreach activities within the Associazione Scienzimpresa, being member of the steering board between 2014 and 2018, and since 2021.
Since November 2021 I am assistant professor at the Physics Department of the University of Tor Vergata, affiliated to the interdepartmental NAST Center and visiting scientist at the ISIS Neutron and Muon Source (UK). In 2022 I have been awarded the National Scientific Qualification (ASN) as associate professor in applied physics (02/D1).
Between 2015 and 2021 I have been instrument scientist at the VESUVIO neutron spectrometer within the Molecular Spectroscopy Group of the ISIS Neutron and Muon Source;
Between 2019 and 2021 I have been secretary of the UK-ESS Project Board, the body supervising the UK contribution to the European Spallation Source;
In 2020 I have been Visiting Professor at the University of Tor Vergata, and I have been awarded the National Scientific Qualification as an Associate Professor in condensed-matter physics;
Between 2015 and 2019 I have been secretary of the Molecular Spectroscopy User Group Liaison Team at the ISIS Neutron & Muon Source;
In 2015 I have been awarded the PhD in Physics at the University of Tor Vergata with a thesis “On the quantum contributions to phase transitions in water probed by inelastic neutron scattering”, supervised by Prof. C. Andreani e Prof. R. Senesi;
In 2014 I have been visiting student at the Spallation Neutron Source of the Oak Ridge National Laboratory, TN, USA, within the framework of the European project META (Materials Enhancement for Technological Applications), International Research staff Exchange Scheme (FP7);
M. Witek, M. Krzystyniak, G. Romanelli, and T. WitczakGlass, “Transition in Rice Pasta as Observed by Combined Neutron Scattering and Time-Domain NMR”, Polymers, 13 (15), 2426 (2021);
G. Romanelli, D. Onorati, P. Ulpiani, S. Cancelli, et al., “Thermal neutron cross sections of amino acids from average contributions of functional groups”, J. Phys.: Cond. Matter, 33 (28), 285901 (2021);
M. Martellucci, G. Romanelli, S. Valeri, D. Cottone, C. Andreani, and R. Senesi; “The neutron cross section of barite-enriched concrete for radioprotection shielding in the range 1 meV – 1 keV”; Euro. Phys. J. Plus, 136, 259, 1–12 (2021);
J. I. Robledo, J. Dawidowski, J. I. M´arquez Dami´an, G. Skoro, C. Bovo, and ˇ G.Romanelli, “Measurement
of neutron total cross sections at the VESUVIO spectrometer”, Nucl. Inst. Meth. Phys. Res. A 971, 164096 (2020);
G. Festa, G. Romanelli, R. Senesi, L. Arcidiacono, C. Scatigno, S. F. Parker, M. P. M. Marques, and C. Andreani, “Neutrons for Cultural Heritage—Techniques, Sensors, and Detection”, Sensors, 20, 2, 502 (2020);
S. C. Capelli and G. Romanelli, “An effective hydrogen scattering cross section for time-of-flight neutron experiments with simple organic molecules”, J. Appl. Cryst., 52, 1233–1237 (2019);
G. Romanelli, T. Minniti, G. Skoro, M. Krzystyniak, J. D. Taylor, D. Fornalski, and F. Fernandez-Alonso, “Visualisation of the Catalysed Nuclear-Spin Conversion of Molecular Hydrogen Using Energy-Selective Neutron Imaging”, J. Phys. Chem. C, 123, 18, 11745–11751 (2019);
M. Krzystyniak, G. Romanelli, F. Fernandez-Alonso, “Non-destructive quantitation of hydrogen via mass-resolved neutron spectroscopy”, Analyst (2019);
C. Andreani, M. Krzystyniak, G. Romanelli, R. Senesi, and F. Fernandez-Alonso, “Electron-volt neutron spectroscopy: beyond fundamental systems”, Advances in Physics, 1–73 (2017);
G. Romanelli and M. Krzystyniak, “On the line-shape analysis of Compton profiles and its application to neutron scattering”, Nucl. Inst. Meth. Phys. Res. A, 819 84–88 (2016);
G. Romanelli, M. Ceriotti, D. E. Manolopoulos, C. Pantalei, R. Senesi, and C. Andreani, “Direct measurement of competing quantum effects on the kinetic energy of heavy water upon melting”, J. Phys. Chem. Lett., 4, 19 3251–3256 (2013);