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Session RP1 - Poster Session VIII.
POSTER session, Thursday afternoon, October 30
Fran Hill Southeast Exhibit Hall, ACC

[RP1.020] Heat Load on the NCSX First Wall

T. B. Kaiser (University of California, Lawrence Livermore National Laboratory), D. N. Monticello (PPPL), D. N. Hill, M. V. Umansky (LLNL)

We have used magnetic field data generated by the PIES 3D MHD equilibrium code(M50 coil set) and a new vacuum field code(Michael Drevlak Max Planck Institute for Plasma Physics, Greifswald, Germany, private communication), together with the latest numerical model of the first wall (Art Brooks, PPPL, private communication) to compute wall heat loading in the National Compact Stellarator Experiment (NCSX) as a function of position. Field lines originating just outside the last closed magnetic surface are followed until they intersect the wall by integrating the field-line equations of motion in cylindrical coordinates using the LSODE integrator. Magnetic field values are interpolated with arbitrary-order splines. The local (nonuniform) heat flux is estimated from the density and incidence angle of escaping field lines.

Part R of program listing