Figure 10: (a) Midplane (z = 0) cross section of a quadrant of the DIII-D tokamak, showing the intersection of the vertical FIDA sightlines (triangles) and the (x,y) coordinate system associated with the active neutral beam. (b) Midplane halo neutral density. The distribution is asymmetrical due to the plasma flow. (c) Beam-ion density. (d) Injected neutral density.
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