Plasma diagnostics in JFT-2M

S. Kasai, K. Kamiya, K. Shinohara, H. Kawashima, H. Ogawa, K. Uehara, Y. Miura, F. Okano, S. Suzuki, K. Hoshino, K. Tsuzuki, M. Sato, K. Oasa, Y. Kusama, T. Yamauchi, Y. Nagashima, K. Ida, S. Hidekuma, T. Ido, Y. HamadaA. Nishizawa, Y. Kawasumi, Y. Uesugi, S. Okajima, K. Kawahata, A. Ejiri, H. Amemiya, Y. Sadamoto

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The diagnostic system of JFT-2M has consisted of about 30 individual diagnostic instruments, which were used to study plasma production, control, equilibrium, stability, confinement, plasma heating by neutral beam injection and/or by radio-frequency (rf) (lower hybrid, ion cyclotron resonance frequency, electron cyclotron heating), and current drive by rf. In these instruments, the motional Stark effect polarimeter, charge-exchange recombination spectroscopy, heavy ion beam probe, time-of-flight neutral particle analyzer, etc., have helped in further understanding the improved mechanism of confinement such as H-mode and high-recycling-steady H-mode, and operational regimes of these modes. An infrared television camera system and a lost ion probe have played a very important role in investigating the heat load on the walls due to ripple lost particles and escaping ions from the core plasma region, respectively.

Original languageEnglish
Pages (from-to)225-240
Number of pages16
JournalFusion Science and Technology
Issue number2
Publication statusPublished - Feb 2006

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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    Kasai, S., Kamiya, K., Shinohara, K., Kawashima, H., Ogawa, H., Uehara, K., Miura, Y., Okano, F., Suzuki, S., Hoshino, K., Tsuzuki, K., Sato, M., Oasa, K., Kusama, Y., Yamauchi, T., Nagashima, Y., Ida, K., Hidekuma, S., Ido, T., ... Sadamoto, Y. (2006). Plasma diagnostics in JFT-2M. Fusion Science and Technology, 49(2), 225-240.