Lawrence Livermore National Laboratory (LLNL) researchers, in collaboration with General Atomics and the University of Arizona, have developed an infrared and visible camera viewing system that’s able to produce wide-angle, tangential views of full poloidal (north-south direction of the magnetic field) cross-sections inside the tokamak. The camera’s images provide researchers with data about the interior conditions of the DIII-D, which was built under contract for the US Department of Energy.
"We wanted to look inside the tokamak’s chamber to see where things were heating up on the walls," said Kevin Morris, a designer with LLNL’s National Security Engineer Division, who was part of the research team that developed the camera system
. "There are a lot of critical areas that are heated by the plasma, and researchers want to understand them better."
The camera system consists of a commercially available infrared camera, a fast visible camera and an optical system designed by a collaboration of physicists, engineers, optical designers and mechanical designers.
Their design will be used as a prototype for a set of larger cameras that will be built for ITER.
Read the full story on the LLNL website here.