Recent results of divertor simulation research using an end-cell of a large tandem mirror device

Y. Nakashima; H. Takeda; K. Ichimura; K. Hosoi; M. Sakamoto; M. Hirata; M. Ichimura; R. Ikezoe; T. Imai; T. Ishii; T. Kariya; I. Katanuma; J. Kohagura; R. Minami; T. Numakura; H. Ueda; M. Yoshikawa; N. Asakura; T. Furuta; A. Hatayama; Y. Hirooka; S. Kado; S. Masuzaki; H. Matsuura; S. Nagata; N. Nishino; N. Ohno; A. Sagara; T. Shikama; M. Shoji; M. Toma; A. Tonegawa; Y. Ueda

doi:10.1016/j.jnucmat.2013.01.157

Recent results of divertor simulation research using an end-cell of a large tandem mirror device

Y. Nakashima, H. Takeda, K. Ichimura, K. Hosoi, M. Sakamoto, M. Hirata, M. Ichimura, R. Ikezoe, T. Imai, T. Ishii, T. Kariya, I. Katanuma, J. Kohagura, R. Minami, T. Numakura, H. Ueda, M. Yoshikawa, N. Asakura, T. Furuta, A. HatayamaY. Hirooka, S. Kado, S. Masuzaki, H. Matsuura, S. Nagata, N. Nishino, N. Ohno, A. Sagara, T. Shikama, M. Shoji, M. Toma, A. Tonegawa, Y. Ueda

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

This paper describes the results of characterization of high heat and particle fluxes produced at the end-cell of the large tandem mirror GAMMA 10 and of the initial plasma-irradiation experiments. In the case of ICRF plasmas, the heat flux of 0.8 MW/m² and the particle flux of 4 × 10 ²²/m² s were achieved at the end-mirror exit. The heat flux increases with the ICRF power and has a linear relationship with the stored energy. Direct ion energy analysis clarified that the parallel ion temperature can be controlled from 100 eV to 400 eV by changing the ICRF power. Additional plasma heating using another ICRF system in the anchor-cell significantly increases the particle flux, which gives a clear prospect of generating the higher particle flux by applying additional ICRF heating in the neighboring cells. The initial results of the plasma-gas-material interactions on a new V-shaped tungsten target were also reported.

Original language	English
Pages (from-to)	S738-S741
Journal	Journal of Nuclear Materials
Volume	438
Issue number	SUPPL
DOIs	https://doi.org/10.1016/j.jnucmat.2013.01.157
Publication status	Published - 2013
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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Nakashima, Y., Takeda, H., Ichimura, K., Hosoi, K., Sakamoto, M., Hirata, M., Ichimura, M., Ikezoe, R., Imai, T., Ishii, T., Kariya, T., Katanuma, I., Kohagura, J., Minami, R., Numakura, T., Ueda, H., Yoshikawa, M., Asakura, N., Furuta, T., ... Ueda, Y. (2013). Recent results of divertor simulation research using an end-cell of a large tandem mirror device. Journal of Nuclear Materials, 438(SUPPL), S738-S741. https://doi.org/10.1016/j.jnucmat.2013.01.157

Nakashima, Y, Takeda, H, Ichimura, K, Hosoi, K, Sakamoto, M, Hirata, M, Ichimura, M, Ikezoe, R, Imai, T, Ishii, T, Kariya, T, Katanuma, I, Kohagura, J, Minami, R, Numakura, T, Ueda, H, Yoshikawa, M, Asakura, N, Furuta, T, Hatayama, A, Hirooka, Y, Kado, S, Masuzaki, S, Matsuura, H, Nagata, S, Nishino, N, Ohno, N, Sagara, A, Shikama, T, Shoji, M, Toma, M, Tonegawa, A & Ueda, Y 2013, 'Recent results of divertor simulation research using an end-cell of a large tandem mirror device', Journal of Nuclear Materials, vol. 438, no. SUPPL, pp. S738-S741. https://doi.org/10.1016/j.jnucmat.2013.01.157

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title = "Recent results of divertor simulation research using an end-cell of a large tandem mirror device",

abstract = "This paper describes the results of characterization of high heat and particle fluxes produced at the end-cell of the large tandem mirror GAMMA 10 and of the initial plasma-irradiation experiments. In the case of ICRF plasmas, the heat flux of 0.8 MW/m2 and the particle flux of 4 × 10 22/m2 s were achieved at the end-mirror exit. The heat flux increases with the ICRF power and has a linear relationship with the stored energy. Direct ion energy analysis clarified that the parallel ion temperature can be controlled from 100 eV to 400 eV by changing the ICRF power. Additional plasma heating using another ICRF system in the anchor-cell significantly increases the particle flux, which gives a clear prospect of generating the higher particle flux by applying additional ICRF heating in the neighboring cells. The initial results of the plasma-gas-material interactions on a new V-shaped tungsten target were also reported.",

author = "Y. Nakashima and H. Takeda and K. Ichimura and K. Hosoi and M. Sakamoto and M. Hirata and M. Ichimura and R. Ikezoe and T. Imai and T. Ishii and T. Kariya and I. Katanuma and J. Kohagura and R. Minami and T. Numakura and H. Ueda and M. Yoshikawa and N. Asakura and T. Furuta and A. Hatayama and Y. Hirooka and S. Kado and S. Masuzaki and H. Matsuura and S. Nagata and N. Nishino and N. Ohno and A. Sagara and T. Shikama and M. Shoji and M. Toma and A. Tonegawa and Y. Ueda",

year = "2013",

doi = "10.1016/j.jnucmat.2013.01.157",

language = "English",

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T1 - Recent results of divertor simulation research using an end-cell of a large tandem mirror device

AU - Nakashima, Y.

AU - Takeda, H.

AU - Ichimura, K.

AU - Hosoi, K.

AU - Sakamoto, M.

AU - Hirata, M.

AU - Ichimura, M.

AU - Ikezoe, R.

AU - Imai, T.

AU - Ishii, T.

AU - Kariya, T.

AU - Katanuma, I.

AU - Kohagura, J.

AU - Minami, R.

AU - Numakura, T.

AU - Ueda, H.

AU - Yoshikawa, M.

AU - Asakura, N.

AU - Furuta, T.

AU - Hatayama, A.

AU - Hirooka, Y.

AU - Kado, S.

AU - Masuzaki, S.

AU - Matsuura, H.

AU - Nagata, S.

AU - Nishino, N.

AU - Ohno, N.

AU - Sagara, A.

AU - Shikama, T.

AU - Shoji, M.

AU - Toma, M.

AU - Tonegawa, A.

AU - Ueda, Y.

PY - 2013

Y1 - 2013

N2 - This paper describes the results of characterization of high heat and particle fluxes produced at the end-cell of the large tandem mirror GAMMA 10 and of the initial plasma-irradiation experiments. In the case of ICRF plasmas, the heat flux of 0.8 MW/m2 and the particle flux of 4 × 10 22/m2 s were achieved at the end-mirror exit. The heat flux increases with the ICRF power and has a linear relationship with the stored energy. Direct ion energy analysis clarified that the parallel ion temperature can be controlled from 100 eV to 400 eV by changing the ICRF power. Additional plasma heating using another ICRF system in the anchor-cell significantly increases the particle flux, which gives a clear prospect of generating the higher particle flux by applying additional ICRF heating in the neighboring cells. The initial results of the plasma-gas-material interactions on a new V-shaped tungsten target were also reported.

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Recent results of divertor simulation research using an end-cell of a large tandem mirror device

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