Nuclear Fusion with Magnetic Containment

View into the interior of the ASDEX vacuum vessel during a typical tokamak divertor discharge in natural colour. The bright parts correspond to the surface part of the plasma which is deflected into the upper and lower divertor chambers which act as “vacuum cleaners”. On the right hand side the trace of an injected pellet consisting of solid deuterium is seen. The left end of the trace corresponds to the point where this pellet is completely evaporated. A part of the trace is mirrored on an observational plane mirror