Plasma boundary and first-wall diagnostics in ITER

ITERにおけるプラズマ周辺部と第一壁の計測

Pitcher, C. S.*; Andrew, P.*; Barnsley, R.*; Bertalot, L.*; Counsell, G. G.*; Encheva, A.*; Feder, R. E.*; 波多江 仰紀; Johnson, D. W.*; Kim, J.*; 草間 義紀; Lee, H. G.*; Mukhin, E. E.*; Reichle, R.*; Thomas, D. M.*; Tugarinov, S. N.*; Udintsev, V. S.*; Vasu, P.*; Vayakis, G.*; Walker, C. I.*; Walsh, M. J.*; Yang, Q. W.*; 谷塚 英一; Zhao, J.*; Zvonkov, A. V.*

Pitcher, C. S.*; Andrew, P.*; Barnsley, R.*; Bertalot, L.*; Counsell, G. G.*; Encheva, A.*; Feder, R. E.*; Hatae, Takaki; Johnson, D. W.*; Kim, J.*; Kusama, Yoshinori; Lee, H. G.*; Mukhin, E. E.*; Reichle, R.*; Thomas, D. M.*; Tugarinov, S. N.*; Udintsev, V. S.*; Vasu, P.*; Vayakis, G.*; Walker, C. I.*; Walsh, M. J.*; Yang, Q. W.*; Yatsuka, Eiichi; Zhao, J.*; Zvonkov, A. V.*

ITER plasma boundary and first-wall diagnostics are summarized in terms of their physical implementation and physics motivation. The challenge of extracting diagnostic signals while maintaining nuclear shielding is discussed, as well as the problems associated with high levels of erosion and redeposition.