Suppression of flute-like fluctuation by potential formation in GAMMA 10/PDX

M. Yoshikawa; J. Kohagura; R. Ikezoe; M. Sakamoto; N. Ezumi; R. Minami; M. Hirata; A. Terakado; K. Nojiri; S. Jang; A. Tanaka; M. Ichimura; T. Imai; Y. Nakashima

doi:10.1088/1741-4326/ab160d

Suppression of flute-like fluctuation by potential formation in GAMMA 10/PDX

M. Yoshikawa, J. Kohagura, R. Ikezoe, M. Sakamoto, N. Ezumi, R. Minami, M. Hirata, A. Terakado, K. Nojiri, S. Jang, A. Tanaka, M. Ichimura, T. Imai, Y. Nakashima

Advanced Fusion Research Center

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

1 Citation (Scopus)

Abstract

In the hot ion mode experiments of the tandem mirror GAMMA 10/PDX plasma, suppression of the flute-like fluctuation, for which the rotation direction is the same as the ion diamagnetic rotation direction, was observed during the axially confined potential formation while electron cyclotron heating (ECH) was applied at the barrier and plug cells for the first time. In the previous experiments, the electron diamagnetic rotation type fluctuations were clearly suppressed with the application of both barrier (B) and plug (P) ECH. We show that the flute-like fluctuation of ion diamagnetic rotation is also suppressed with the application of P/B-ECH.

Original language	English
Article number	076031
Journal	Nuclear Fusion
Volume	59
Issue number	7
DOIs	https://doi.org/10.1088/1741-4326/ab160d
Publication status	Published - Jun 10 2019

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1088/1741-4326/ab160d

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@article{aef2f77875cf44288fc431ba727ba9fc,

title = "Suppression of flute-like fluctuation by potential formation in GAMMA 10/PDX",

abstract = "In the hot ion mode experiments of the tandem mirror GAMMA 10/PDX plasma, suppression of the flute-like fluctuation, for which the rotation direction is the same as the ion diamagnetic rotation direction, was observed during the axially confined potential formation while electron cyclotron heating (ECH) was applied at the barrier and plug cells for the first time. In the previous experiments, the electron diamagnetic rotation type fluctuations were clearly suppressed with the application of both barrier (B) and plug (P) ECH. We show that the flute-like fluctuation of ion diamagnetic rotation is also suppressed with the application of P/B-ECH.",

author = "M. Yoshikawa and J. Kohagura and R. Ikezoe and M. Sakamoto and N. Ezumi and R. Minami and M. Hirata and A. Terakado and K. Nojiri and S. Jang and A. Tanaka and M. Ichimura and T. Imai and Y. Nakashima",

note = "Funding Information: The authors would like to thank members of the GAMMA 10 group of the University of Tsukuba for their collaboration. This work was partly supported by the Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research in Priority Areas, No. 16082203 and the NIFS collaboration research program, No. NIFS04KUGM009. Publisher Copyright: {\textcopyright} 2019 IAEA, Vienna.",

year = "2019",

month = jun,

day = "10",

doi = "10.1088/1741-4326/ab160d",

language = "English",

volume = "59",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

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TY - JOUR

T1 - Suppression of flute-like fluctuation by potential formation in GAMMA 10/PDX

AU - Yoshikawa, M.

AU - Kohagura, J.

AU - Ikezoe, R.

AU - Sakamoto, M.

AU - Ezumi, N.

AU - Minami, R.

AU - Hirata, M.

AU - Terakado, A.

AU - Nojiri, K.

AU - Jang, S.

AU - Tanaka, A.

AU - Ichimura, M.

AU - Imai, T.

AU - Nakashima, Y.

N1 - Funding Information: The authors would like to thank members of the GAMMA 10 group of the University of Tsukuba for their collaboration. This work was partly supported by the Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research in Priority Areas, No. 16082203 and the NIFS collaboration research program, No. NIFS04KUGM009. Publisher Copyright: © 2019 IAEA, Vienna.

PY - 2019/6/10

Y1 - 2019/6/10

N2 - In the hot ion mode experiments of the tandem mirror GAMMA 10/PDX plasma, suppression of the flute-like fluctuation, for which the rotation direction is the same as the ion diamagnetic rotation direction, was observed during the axially confined potential formation while electron cyclotron heating (ECH) was applied at the barrier and plug cells for the first time. In the previous experiments, the electron diamagnetic rotation type fluctuations were clearly suppressed with the application of both barrier (B) and plug (P) ECH. We show that the flute-like fluctuation of ion diamagnetic rotation is also suppressed with the application of P/B-ECH.

AB - In the hot ion mode experiments of the tandem mirror GAMMA 10/PDX plasma, suppression of the flute-like fluctuation, for which the rotation direction is the same as the ion diamagnetic rotation direction, was observed during the axially confined potential formation while electron cyclotron heating (ECH) was applied at the barrier and plug cells for the first time. In the previous experiments, the electron diamagnetic rotation type fluctuations were clearly suppressed with the application of both barrier (B) and plug (P) ECH. We show that the flute-like fluctuation of ion diamagnetic rotation is also suppressed with the application of P/B-ECH.

UR - http://www.scopus.com/inward/record.url?scp=85069057137&partnerID=8YFLogxK

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U2 - 10.1088/1741-4326/ab160d

DO - 10.1088/1741-4326/ab160d

M3 - Article

AN - SCOPUS:85069057137

SN - 0029-5515

VL - 59

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 7

M1 - 076031

ER -

Suppression of flute-like fluctuation by potential formation in GAMMA 10/PDX

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