NDLI: 1 EX / C 1-1 High Performance Tokamak Experiments with Ferritic Steel Wall on JFT-2 M

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1 EX / C 1-1 High Performance Tokamak Experiments with Ferritic Steel Wall on JFT-2 M

Content Provider	Semantic Scholar
Author	Tsuzuki, Kazuhiro Kimura, H. Kawashima, H. Sato, Masayasu Kamiya, Katsuki Shinohara, Kazato Ogawa, Hirokatsu Hoshino, Koichi Bakhtiar, M. Kasai, Satoshi Uehara, Kazuya Sasao, Hiroyuki Kusama, Yoshinori Isei, Nobuaki Miura, Yukitoshi Ogawa, T. Yamamoto, Masahiro Shibata, Tsunenori Kikuchi, Keisuke Miyachi, Kenji Ito, Taichiro Ajikawa, H. Nomura, Shinhuku Tsutsui, Hiromitsu Shimada, Ryuichi Ido, Takuya Hamada, Y. Fukumoto, Naoyuki Nagata, Masayoshi Uyama, Tomoyoshi Niimi, Hiroake Yatsu, Shigeo Kayukawa, Naoyuki Hirohata, Yuko Nagashima, Youhei Ejiri, Akira Amemiya, A. Sadamoto Tsushima, A.
Copyright Year	2002
Abstract	In the JFT-2M tokamak compatibility between plasma and the low activation ferritic steel, which is candidate material of a fusion reactor, has been investigated step by step. We have entered the 3rd stage of Advanced Material Tokamak EXperiment (AMTEX), where the inside of vacuum vessel wall is fully covered with ferritic steel plates (Ferritic Inside Wall; FIW). The effects of FIW have been investigated on the plasma production, the impurity release, the operation region, and H-mode characteristics. No deteriorative effect has been observed up to now. High normalized beta plasma of βN ~ 3 having both internal transport barrier and the steady H-mode edge was obtained. Remarkable reduction of ripple trapped loss from 0.26 MW/m (w/o ferritic steel) to less than 0.01 MW/m was demonstrated due to optimization of the thickness profile of FIW. The effect of the localized ripple was also investigated with additional ferritic plates outside the vacuum vessel. In parallel with AMTEX, advanced and basic research for the development of high performance plasma such as evaluation of fluctuation induced particle flux and development of advanced fuelling (compact toroid injection) are also performed on JFT-2M.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www-pub.iaea.org/MTCD/publications/PDF/csp_019c/pdf/exc1_1.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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