Inside vacuum chamber
This photo provides a view of what the interior of the doughnut-shaped reactor vessel is like. Strong magnetic fields are created by coils around this structure and antennas create the high heat to precipitate fusion. Often, the interior of the tokamak vessel are made from tungsten, but the MIT's Alcator C-Mod machine uses molybdenum.
June 29, 2011 8:42 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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