Articolo in rivista, 2011, ENG, 10.1103/PhysRevLett.107.205002

Spectral Broadening of Characteristic gamma-Ray Emission Peaks from C-12(He-3, p gamma)N-14 Reactions in Fusion Plasmas

M. Tardocchi; M. Nocente; I. Proverbio; V. G. Kiptily; P. Blanchard; S. Conroy; M. Fontanesi; G. Grosso; K. Kneupner; E. Lerche; A. Murari; E. Perelli Cippo; A. Pietropaolo; B. Syme; D. Van Eester; G. Gorini

1 Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, Milan, Italy; 2 Università degli Studi di Milano-Bicocca, Dipartimento di Fisica "G. Occhialini," Milan, Italy; 3 EURATOM-CCFE Association, Culham Science Centre, Abingdon, United Kingdom; 4 Centre de Recherches en Physique des Plasmas-CRPP, EPFL-SB, Lausanne, Switzerland; 5 EURATOM-VR, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden; 6 LPP-ERM/KMS, Association Euratom-"Belgian State," TEC Partner, B-1000, Brussels, Belgium; 7 Consorzio RFX, Padova, Italy. (M. Tardocchi 1,2; M. Nocente 2,1; I. Proverbio 2; V. G. Kiptily 3; P. Blanchard 4; S. Conroy 5; M. Fontanesi 2; G. Grosso 1; K. Kneupner 3; E. Lerche 6; A. Murari 7; E. Perelli Cippo 2; A. Pietropaolo 2; B. Syme 3; D. Van Eester 6; G. Gorini 2,1)

The 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.

Physical review letters (Print) 107 (20)

Keywords

NEUTRON EMISSION, DIAGNOSTICS, IONS, JET

CNR authors

Gorini Giuseppe, Nocente Massimo, Murari Andrea, Grosso Giovanni Maria, Tardocchi Marco

CNR institutes

IFP – Istituto di fisica del plasma "Piero Caldirola", IGI – Istituto gas ionizzati

ID: 26147

Year: 2011

Type: Articolo in rivista

Creation: 2011-12-20 00:00:00.000

Last update: 2022-04-11 16:30:35.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:26147

DOI: 10.1103/PhysRevLett.107.205002

ISI Web of Science (WOS): 000297130800006

Scopus: 2-s2.0-81055149816