Design of a compact W-shaped pumped divertor in JT-60U

In JT-60U, a compact W-shaped pumped divertor, which is optimized for realizing a radiative divertor with high confinement performance in various experiments, will be implemented in February-May, 1997. Pumping and fueling systems are arranged to provide a sufficient capability of particle control. Segmented baffle structure with insulated flexible gas seal is adopted to satisfy experimental and structural requirements.