Measurement of the carbon source on the limiter face in Tore Supra

In a steady-state tokamak, the impurity production and transport from plasma facing components will have to be controlled. An understanding of these processes in the edge plasma is necessary for the design and operation of plasma facing components. An experiment has been carried out to study impurity generation and transport processes on an inertial limiter on Tore Supra as a baseline for upcoming experiments on an actively cooled limiter. A system has been implemented to permit quantitative measurement of impurity sources from the outboard limiter in Tore Supra. (K.A.) 3 refs.; 7 figs