Carbon deposition studies on the DIII-D Tokamak.

Magnetic Fusion — Tokamak 

LLNL Collaboration focuses on tasks

Specific tasks

Pedestal, Boundary, and Divertor

“Core” physics

US ITER diagnostics provide important control and science tools

Three ITER “Prototypes”

  • MSE
  • IRTV
  • Crystal x-ray Spectrometer

Current MFE experimental Staff

The figure above shows the comparison of predicted ELM structure and measured light from carbon ions during an ELM: (a) calculated 3D profile of the distortion due to an ELM; (b) blow-up of the region that would be seen by the camera; (c) measured 3D profile of light emitted by carbon atoms during the ELM.

A team of scientists has opened a new window into the complex behavior that occurs at the edge of a 100‑million-degree fusion plasma. Using advanced high-speed cameras, the team obtained very detailed, three-dimensional images of plasma instabilities known as Edge Localized Modes (ELMs). Understanding the mechanism that lead to these instabilities will have important implications for the performance of the next generation of fusion devices, such as the International Thermonuclear Experimental Reactor (ITER), a major international project with significant U.S. participation. The team, which included researchers from Lawrence Livermore, General Atomics, Oak Ridge National Laboratory, and the University of California, San Diego, performed the experiments at the DIII-D tokamak at General Atomics in La Jolla, California.