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Goto, Yoshitaka*
Kaku Yugoro, (11), p.34 - 37, 2004/03
Recent results of erosion and re-deposition studies are reported for graphite tiles from W-shaped divertor region of JT-60U. The tiles were operated in Jun. 1997 - Oct. 1998 periods in which more than 3000 D-D discharge experiments were made with all-carbon walls with 2-times boronizations and inner-private flux pumping. Erosion depth was estimated by using dial gauge, while deposition was measured with SEM. On the outer divertor target, erosion was found dominant, while on the inner target, re-deposition was found to be dominant. No continuous deposition layers on the dome top. Observed in/out asymmetry is attributable to in/out asymmetry of plasma particle conditions in front of the divertor plates. Columnar structures in the redeposition layers corresponded to the lower heat-flux zone, while lamellar structures were found in the overlayers in the higher heat-flux zone near the separatrix strike point.
Seki, Masahiro; Hishinuma, Akimichi; Kurihara, Kenichi; Akiba, Masato; Abe, Tetsuya; Ishitsuka, Etsuo; Imai, Tsuyoshi; Enoeda, Mikio; Ohira, Shigeru; Okumura, Yoshikazu; et al.
Kaku Yugoro Kogaku Gairon; Mirai Enerugi Eno Chosen, 246 Pages, 2001/09
no abstracts in English
Ishitsuka, Etsuo; Kawamura, Hiroshi
Kaku Yugoro, No.4 (Nihon Genshiryoku Gakkai Kaku Yugo Kogakubu Kai Kaiho), 0, p.1 - 11, 1996/02
no abstracts in English
Shiozawa, Shusaku
Kaigiroku: Kaku Yugoro Zairyo Foramu 9; Oarai Zairyo Shosha Kenkyukai, p.95 - 116, 1993/00
no abstracts in English
Nakajima, Hajime
Kaku Yugoro Zairyo Foramu, 6, p.123 - 136, 1992/00
no abstracts in English
*; *; *; Okamoto, Yoshizo*; Hoshiya, Taiji; Takahashi, Akito*; *; *; *; *; et al.
Koshutsuryoku Mitsudo Kaku Yugoro Niokeru Yoso Kokan Gijutsu No Kiso Sekkei, 147 Pages, 1988/03
no abstracts in English
Saeki, Masakatsu
Kaku Yugoro, 19, p.6 - 10, 1987/00
no abstracts in English
