Status and plan of GAMMA 10 tandem mirror program

T. Imai, M. Ichimura, Y. Nakashima, I. Katanuma, M. Yoshikawa, T. Kariya, R. Minami, Y. Miyata, Y. Yamaguchi, R. Ikezoe, T. Shimozuma, S. Kubo, Y. Yoshimura, H. Takahashi, T. Mutoh, K. Sakamoto, M. Mizuguchi, M. Ota, H. Ozawa, K. HosoiF. Yaguchi, R. Yonenaga, Y. Imai, T. Murakani, K. Yagi, T. Nakamura, H. Aoki, H. Iizumi, T. Ishii, H. Kondou, H. Takeda, N. Ichioka, S. Masaki, T. Yokoyama

Research output: Contribution to journalArticle

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Abstract

Recent progress and near future plan of GAMMA 10 efforts are presented. With high power plug electron cyclotron heating (ECH) up to ~ 400 kW, the ion confining potential of more than 2 kV was confirmed. The drift type low frequency fluctuations were suppressed by the positive radial electric field produced by plug ECH. It is found that the efficient EC heating on mirror devices from a strong B field side requires the minimization of the stray microwave in addition to the 100% X-mode excitation to avoid the enhancement of the ion loss. The development of a gyrotron, the key tool of these ECH experiments, has been made in collaboration with NIFS (National Institute for Fusion Science), More than 1.5 MWfor more than Is has been demonstrated at 77GHz. The plan of the boundary plasma research program with modification of GAMMA 10 is in progress. The new program includes the physics and technology studies of the divertor and SOL plasmas and PWI relevant to torus plasmas like ITER. The high heat flux experiments using the open end mirror throat has been started and we have obtained successful preliminary data, which include the heat flux of 8 MW/m2.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalFusion Science and Technology
Volume59
Issue number1 T
DOIs
Publication statusPublished - Jan 2011
Externally publishedYes

Fingerprint

tandem mirrors
electron cyclotron heating
Cyclotrons
Mirrors
plugs
Heating
heat flux
Plasmas
mirrors
Electrons
Heat flux
throats
Ions
confining
ions
fusion
low frequencies
microwaves
physics
optimization

All Science Journal Classification (ASJC) codes

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

Cite this

Imai, T., Ichimura, M., Nakashima, Y., Katanuma, I., Yoshikawa, M., Kariya, T., ... Yokoyama, T. (2011). Status and plan of GAMMA 10 tandem mirror program. Fusion Science and Technology, 59(1 T), 1-8. https://doi.org/10.13182/FST11-A11563

Status and plan of GAMMA 10 tandem mirror program. / Imai, T.; Ichimura, M.; Nakashima, Y.; Katanuma, I.; Yoshikawa, M.; Kariya, T.; Minami, R.; Miyata, Y.; Yamaguchi, Y.; Ikezoe, R.; Shimozuma, T.; Kubo, S.; Yoshimura, Y.; Takahashi, H.; Mutoh, T.; Sakamoto, K.; Mizuguchi, M.; Ota, M.; Ozawa, H.; Hosoi, K.; Yaguchi, F.; Yonenaga, R.; Imai, Y.; Murakani, T.; Yagi, K.; Nakamura, T.; Aoki, H.; Iizumi, H.; Ishii, T.; Kondou, H.; Takeda, H.; Ichioka, N.; Masaki, S.; Yokoyama, T.

In: Fusion Science and Technology, Vol. 59, No. 1 T, 01.2011, p. 1-8.

Research output: Contribution to journalArticle

Imai, T, Ichimura, M, Nakashima, Y, Katanuma, I, Yoshikawa, M, Kariya, T, Minami, R, Miyata, Y, Yamaguchi, Y, Ikezoe, R, Shimozuma, T, Kubo, S, Yoshimura, Y, Takahashi, H, Mutoh, T, Sakamoto, K, Mizuguchi, M, Ota, M, Ozawa, H, Hosoi, K, Yaguchi, F, Yonenaga, R, Imai, Y, Murakani, T, Yagi, K, Nakamura, T, Aoki, H, Iizumi, H, Ishii, T, Kondou, H, Takeda, H, Ichioka, N, Masaki, S & Yokoyama, T 2011, 'Status and plan of GAMMA 10 tandem mirror program', Fusion Science and Technology, vol. 59, no. 1 T, pp. 1-8. https://doi.org/10.13182/FST11-A11563
Imai T, Ichimura M, Nakashima Y, Katanuma I, Yoshikawa M, Kariya T et al. Status and plan of GAMMA 10 tandem mirror program. Fusion Science and Technology. 2011 Jan;59(1 T):1-8. https://doi.org/10.13182/FST11-A11563
Imai, T. ; Ichimura, M. ; Nakashima, Y. ; Katanuma, I. ; Yoshikawa, M. ; Kariya, T. ; Minami, R. ; Miyata, Y. ; Yamaguchi, Y. ; Ikezoe, R. ; Shimozuma, T. ; Kubo, S. ; Yoshimura, Y. ; Takahashi, H. ; Mutoh, T. ; Sakamoto, K. ; Mizuguchi, M. ; Ota, M. ; Ozawa, H. ; Hosoi, K. ; Yaguchi, F. ; Yonenaga, R. ; Imai, Y. ; Murakani, T. ; Yagi, K. ; Nakamura, T. ; Aoki, H. ; Iizumi, H. ; Ishii, T. ; Kondou, H. ; Takeda, H. ; Ichioka, N. ; Masaki, S. ; Yokoyama, T. / Status and plan of GAMMA 10 tandem mirror program. In: Fusion Science and Technology. 2011 ; Vol. 59, No. 1 T. pp. 1-8.
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