Cooling a 150-million-degree plasma in an orderly and controllable fashion. Researchers at the DIII-D National Fusion Facility are studying a new method that uses boron-filled diamond shells to quickly cool fusion plasmas. Early experimental results and computer modeling indicate this method could avoid problems with traditional cooling approaches.
Creating a fusion plasma requires deep understanding of the behavior of various isotopes of hydrogen. But plasma scientists have long been puzzled by a mysterious contradiction– the disconnect between theoretical predictions and experimental observations of how fusion energy confinement varies with the mass of hydrogen isotopes used to fuel the plasma. A new analysis has helped unravel this mystery.