Tardocchi, M.Nocente, M.Proverbio, I.Kiptily, V. G.Blanchard, P.Conroy, S.Fontanesi, M.Grosso, G.Kneupner, K.Lerche, E.Murari, A.Cippo, E. PerelliPietropaolo, A.Syme, B.Van Eester, D.Gorini, G.2011-12-162011-12-162011-12-16201110.1103/PhysRevLett.107.205002https://infoscience.epfl.ch/handle/20.500.14299/73243WOS:000297130800006The spectral broadening of characteristic gamma-ray emission peaks from the reaction C-12(He-3, p gamma)N-14 was measured in D(He-3) plasmas of the JET tokamak with ion cyclotron resonance heating tuned to the fundamental harmonic of He-3. Intensities and detailed spectral shapes of gamma-ray emission peaks were successfully reproduced using a physics model combining the kinetics of the reacting ions with a detailed description of the nuclear reaction differential cross sections for populating the L1-L8 N-14 excitation levels yielding the observed gamma-ray emission. The results provide a paradigm, which leverages knowledge from areas of physics outside traditional plasma physics, for the development of nuclear radiation based methods for understanding and controlling fusion burning plasmas.Neutron EmissionDiagnosticsIonsJettext::journal::journal article::research article