| separatrix | <radiobiology> In a divertor tokamak (and some other configurations), the last closed flux surface is formed not by inserting an object (limiter) but by manipulating the magnetic field, so that some field lines take a topologically different route (through the divertor, rather than simply around the central plasma). The boundary between the two types of field lines is called the separatrix. (09 Oct 1997) |
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