Author/Authors :
Hino، نويسنده , , T and Hirohata، نويسنده , , Y and Yamauchi، نويسنده , , Y and Hashiba، نويسنده , , M and Kohyama، نويسنده , , A and Katoh، نويسنده , , Y and Lee، نويسنده , , Masahisa Jinushi، نويسنده , , T and Akiba، نويسنده , , M and Nakamura، نويسنده , , K and Yoshida، نويسنده , , H and Sengoku، نويسنده , , S and Tsuzuki، نويسنده , , K and Kusama، نويسنده , , Y and Yamaguchi، نويسنده , , K and Muroga، نويسنده , , T، نويسنده ,
Abstract :
Numerous issues on the plasma material interactions were investigated for low activation materials. Co-deposited carbon dust was prepared and the deuterium concentration was measured. The concentration was approximately half of the present design value for ITER. For ferritic steel, the deuterium retention was observed to be comparable to that of stainless steel. Physical sputtering yield was roughly the same as that for stainless steel. For the reduction of absorption rate in vanadium alloy, titanium oxide coating was conducted, and the coating was observed to be very effective for reduction of hydrogen absorption. Helium gas permeability was measured for numerous SiC/SiC composites, and the SiC/SiC composite made by the NITE process showed quite low permeability. The SiC/SiC blanket may be able to be used without helium leakage into plasma.
