TORBEAM

TORBEAM is a beam tracing code for evaluating the electron cyclotron heating and current drive in a plasma. As a beam tracing code, it will run much faster than codes based on a ray tracing algorithm.

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RFMODECH(j)
Selects the fraction of RF power launched with O-MODE polarization for each gyrotron (j=1:nantech), the only acceptable values being 0 (X-mode) and 1 (O-mode). The default value is 0.
ECB_WIDTH_HOR(j)
initial principal horizontal beam width for gyrotron j.
ECB_WIDTH_VERT(j)
initial principal vertical beam width for gyrotron j.
ECB_CURV_HOR(j)
initial principal horizontal curvature for gyrotron j.
ECB_CURV_VERT(j)
initial principal vertical curvature for gyrotron j.
TOB_XZEFF
Control flag for how the Zeff profile is handled.
-1 → to use the profile from TRANSP.
0 → to use a flat profile, equal to the value on axis.
>0 → to use a flat profile, with this input value.