S Sudo et al 2003 Plasma Phys. Control. Fusion 45 A425 doi:10.1088/0741-3335/45/12A/027
S Sudo1, Y Nagayama1, B J Peterson1, K Kawahata1, T Akiyama1, N Ashikawa1, M Emoto1, M Goto1, Y Hamada1, K Ida1, T Ido1, H Iguchi1, S Inagaki1, M Isobe1, T Kobuchi1, A Komori1, Y Liang1, S Masuzaki1, T Minami1, T Morisaki1, S Morita1, S Muto1, Y Nakamura1, H Nakanishi1, M Narushima1, K Narihara1, M Nishiura1, A Nishizawa1, S Ohdachi1, M Osakabe1, T Ozaki1, R O Pavlichenko1, S Sakakibara1, K Sato1, M Shoji1, N Tamura1, K Tanaka1, K Toi1, T Tokuzawa1, K Y Watanabe1, T Watanabe1, H Yamada1, I Yamada1, M Yoshinuma1, P Goncharov2, D Kalinina2, T Kanaba2, T Sugimoto2, A Ejiri3, Y Ono3, H Hojo4, K Ishii4, N Iwama5, Y Kogi6, A Mase6, M Sakamoto6, K Kondo7, H Nagasaki7, S Yamamoto7, N Nishino8, S Okajima9, T Saida10, M Sasao10, T Takeda11, S Tsuji-Iio12, D S Darrow13, H Takahashi13, Y Liu14, J F Lyon15, A Yu Kostrioukov16, V B Kuteev16, V Sergeev16, I Viniar16, A V Krasilnikov17, A Sanin18, L N Vyacheslavov18, D Stutman19, M Finkenthal19, O Motojima1 and LHD Group
Show affiliationsStandard diagnostics for fundamental plasma parameters and for plasma physics are routinely utilized for daily operation and physics studies in the large helical device (LHD) with high reliability. Diagnostics for steady-state plasma are under intensive development, especially for Te, ne (yttrium–aluminium garnet (YAG) laser Thomson, CO2 laser polarimeter), data acquisition in steady-state and heat-resistant probes. To clarify the plasma properties of the helical structure, two- or three-dimensional diagnostics are being aggressively developed: tangential cameras (fast SX TV, photon counting CCD, Hα TV); tomography (tangential SX CCD, bolometer); imaging (bolometer, ECE, reflectometer). Divertor and edge physics are important key issues for steady-state operation. Diagnostics for neutral flux (Hα array, Zeeman spectroscopy) and ne (fast scanning probe, Li beam probe, pulsed radar reflectometer) are also in advanced stages of development. In addition to these, advanced diagnostics are being intensively developed in LHD through domestic and international collaborations.
52.70.Nc Particle measurements
52.70.Ds Electric and magnetic measurements
52.70.La X-ray and gamma-ray measurements
52.40.Hf Plasma-material interactions; boundary layer effects
Issue 12A (December 2003)
Received 26 September 2003
Published 13 November 2003
S Sudo et al 2003 Plasma Phys. Control. Fusion 45 A425