Cooling Superhot Plasma (image) American Physical Society Share Print E-Mail Caption Comparison of experimentally measured radiated power emission patterns inside the DIII-D tokamak with upper gas injection (left) and lower gas injection (right). Arrows indicates gas valve locations, the white border represents the plasma boundary, and the light blue border shows the vacuum vessel. Red coloring indicates the strongest emission, blue weakest. Credit General Atomics Usage Restrictions None Share Print E-Mail 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.