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Report No.

Plasma diagnostics in JFT-2M

Kasai, Satoshi*; Kamiya, Kensaku; Shinohara, Koji; Kawashima, Hisato; Ogawa, Hiroaki; Uehara, Kazuya; Miura, Yukitoshi; Okano, Fuminori; Suzuki, Sadaaki; Hoshino, Katsumichi; Tsuzuki, Kazuhiro; Sato, Masayasu; Oasa, Kazumi; Kusama, Yoshinori; Yamauchi, Toshihiko; Nagashima, Yoshihiko*; Ida, Katsumi*; Hidekuma, Shigeru*; Ido, Takeshi*; Hamada, Yasuji*; Nishizawa, Akimitsu*; Kawasumi, Yoshiaki*; Uesugi, Yoshihiko*; Okajima, Shigeki*; Kawahata, Kazuo*; Ejiri, Akira*; Amemiya, Hiroshi*; Sadamoto, Yoshiro*

The diagnostic system of JFT-2M has consisted of about 30 individual diagnostic instruments,which were used to study the plasma production, control, equilibrium, stability, confinement, plasma heating by NBI and/or RF (LH, ICRF, ECH) and current drive by RF. In these instruments, the motional Stark effect (MSE) polarimeter, charge exchanged recombination spectroscopy (CXRS), heavy-ion beam probe (HIBP), time of flight (TOF) neutral particle analyzer, etc. have contributed to make clear the improved mechanism of confinement such as H-mode and High Recycling Steady (HRS) H-mode, and to search the operational region of these modes.The infrared TV camera system and lost ion probe have played a very important role to investigate the heat load onto the walls due to ripple loss particles and escaping ions from core plasma, respectively.



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Category:Nuclear Science & Technology



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