Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

A. Fujisawa; H. Iguchi; S. Lee; T. P. Crowley; Y. Hamada; S. Kubo; H. Idei; H. Sanuki; K. Itoh; T. Minami; K. Tanaka; S. Nishimura; K. Ida; S. Hidekuma; M. Kojima; C. Takahashi; S. Okamura; K. Matsuoka

doi:10.1063/1.872310

Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

A. Fujisawa, H. Iguchi, S. Lee, T. P. Crowley, Y. Hamada, S. Kubo, H. Idei, H. Sanuki, K. Itoh, T. Minami, K. Tanaka, S. Nishimura, K. Ida, S. Hidekuma, M. Kojima, C. Takahashi, S. Okamura, K. Matsuoka

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Abstract

In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles.

Original language	English
Pages (from-to)	1357-1361
Number of pages	5
Journal	Physics of Plasmas
Volume	4
Issue number	5
DOIs	https://doi.org/10.1063/1.872310
Publication status	Published - May 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.872310

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Fujisawa, A., Iguchi, H., Lee, S., Crowley, T. P., Hamada, Y., Kubo, S., Idei, H., Sanuki, H., Itoh, K., Minami, T., Tanaka, K., Nishimura, S., Ida, K., Hidekuma, S., Kojima, M., Takahashi, C., Okamura, S., & Matsuoka, K. (1997). Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System. Physics of Plasmas, 4(5), 1357-1361. https://doi.org/10.1063/1.872310

Fujisawa, A, Iguchi, H, Lee, S, Crowley, TP, Hamada, Y, Kubo, S, Idei, H, Sanuki, H, Itoh, K, Minami, T, Tanaka, K, Nishimura, S, Ida, K, Hidekuma, S, Kojima, M, Takahashi, C, Okamura, S & Matsuoka, K 1997, 'Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System', Physics of Plasmas, vol. 4, no. 5, pp. 1357-1361. https://doi.org/10.1063/1.872310

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title = "Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System",

abstract = "In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles.",

author = "A. Fujisawa and H. Iguchi and S. Lee and Crowley, {T. P.} and Y. Hamada and S. Kubo and H. Idei and H. Sanuki and K. Itoh and T. Minami and K. Tanaka and S. Nishimura and K. Ida and S. Hidekuma and M. Kojima and C. Takahashi and S. Okamura and K. Matsuoka",

year = "1997",

month = may,

doi = "10.1063/1.872310",

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T1 - Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

AU - Fujisawa, A.

AU - Iguchi, H.

AU - Lee, S.

AU - Crowley, T. P.

AU - Hamada, Y.

AU - Kubo, S.

AU - Idei, H.

AU - Sanuki, H.

AU - Itoh, K.

AU - Minami, T.

AU - Tanaka, K.

AU - Nishimura, S.

AU - Ida, K.

AU - Hidekuma, S.

AU - Kojima, M.

AU - Takahashi, C.

AU - Okamura, S.

AU - Matsuoka, K.

PY - 1997/5

Y1 - 1997/5

N2 - In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles.

AB - In this paper we present space potential profiles directly observed in a toroidal helical plasma of the Compact Helical System (CHS) [K. Matsuoka et al., Proceedings, 12th International Conference on Plasma Physics and Controlled Nuclear Fusion, Nice, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 2, p. 411], using a 200 keV heavy ion beam probe. The potential profiles exhibit widely varied characteristics, including positive and negative polarities for electron cyclotron and neutral beam-heated plasmas, respectively. The behavior of high-energy particles in the CHS plasmas are deduced from loss cone diagrams evaluated from the observed potential profiles.

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JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5

ER -

Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

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