Toroidal Alfven eigenmodes observed in low power JET deuterium-tritium plasmas

The Joint European Torus recently carried out an experimental campaign using a plasma consisting of both deuterium (D) and tritium (T). We observed a high-frequency mode using a reflectometer and an interferometer in a D-T plasma heated with low power neutral beam injection, P-NBI = 11.6 MW. This mode was observed at a frequency f = 156 kHz and was located at major radii 3.1