Abstract
The spectral broadening of characteristic -ray emission peaks from the reaction was measured in plasmas of the JET tokamak with ion cyclotron resonance heating tuned to the fundamental harmonic of . Intensities and detailed spectral shapes of -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 excitation levels yielding the observed -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.
- Received 2 May 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.205002
© 2011 American Physical Society