Vaporization and Melting of Materials in Fusion Devices
نویسندگان
چکیده
High energy fluxes on first wall materials and other c~ponents are encountered in magnetic fusion devices, particularly during hard plasma disruptions. A model to predict evaporation and melting is described which contains a formulation of the evaporation kinetics based on transport theory results. The effect of vapor shielding is evaluated under the assumption that plasma ions slowed down in the vapor dissipate their energy in an isotropic manner. Specific results on melting and evaporation are given for 316 SS, MO, and graphite.
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