Tracking Turbulence in a Tokomak (image) American Physical Society Caption ECE-Imaging and the new diagnostic, MIR, sample overlapping regions of the tokamak plasma and produce 2D images of turbulence and fluctuations. ECE-Imaging measures the radiation temperature of electrons orbiting around magnetic field lines, while MIR detects changes in the electron density. In the series of frames shown, an instability associated with the formation of internal magnetic islands can be seen rotating through the diagnostic field of view. Credit B. Tobias and C.M. Muscatello: Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.