Figure 2. Turning off Troublesome Waves (IMAGE) American Physical Society Caption Spectrograms of measured beam ion loss. Both plasma shots feature the same total beam power, but the shot shown on the right utilizes a beam voltage program that greatly reduces the amplitude of coherent plasma waves. Credit D.C. Pace, et al., Nucl. Fusion 57, 014001 (2017) Usage Restrictions None License Licensed content 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.