Ion temperature increase during MHD events on the TST-2 spherical tokamak

A. Ejiri; S. Shiraiwa; Y. Takase; T. Yamada; Y. Nagashima; H. Kasahara; D. Iijima; Y. Kobori; T. Nishi; T. Taniguchi; M. Aramasu; S. Ohara; M. Ushigome; K. Yamagishi

doi:10.1088/0029-5515/43/7/306

Ion temperature increase during MHD events on the TST-2 spherical tokamak

A. Ejiri, S. Shiraiwa, Y. Takase, T. Yamada, Y. Nagashima, H. Kasahara, D. Iijima, Y. Kobori, T. Nishi, T. Taniguchi, M. Aramasu, S. Ohara, M. Ushigome, K. Yamagishi

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

21 Scopus citations

Abstract

Various types of MHD events including internal reconnection events are studied on the TST-2 spherical tokamak. In weak MHD events no positive current spike was observed, but in strong MHD events with positive current spikes, a rapid and significant impurity ion temperature increase was observed. The decrease in the poloidal magnetic energy is the most probable energy source for ion heating. The plasma current shows a stepwise change. The magnitude of this step correlates with the temperature increase and is found to be a good indicator of the strength of each event.

Original language	English (US)
Pages (from-to)	547-552
Number of pages	6
Journal	Nuclear Fusion
Volume	43
Issue number	7
DOIs	https://doi.org/10.1088/0029-5515/43/7/306
State	Published - Jul 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "Ion temperature increase during MHD events on the TST-2 spherical tokamak",

abstract = "Various types of MHD events including internal reconnection events are studied on the TST-2 spherical tokamak. In weak MHD events no positive current spike was observed, but in strong MHD events with positive current spikes, a rapid and significant impurity ion temperature increase was observed. The decrease in the poloidal magnetic energy is the most probable energy source for ion heating. The plasma current shows a stepwise change. The magnitude of this step correlates with the temperature increase and is found to be a good indicator of the strength of each event.",

author = "A. Ejiri and S. Shiraiwa and Y. Takase and T. Yamada and Y. Nagashima and H. Kasahara and D. Iijima and Y. Kobori and T. Nishi and T. Taniguchi and M. Aramasu and S. Ohara and M. Ushigome and K. Yamagishi",

year = "2003",

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doi = "10.1088/0029-5515/43/7/306",

language = "English (US)",

volume = "43",

pages = "547--552",

journal = "Nuclear Fusion",

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TY - JOUR

T1 - Ion temperature increase during MHD events on the TST-2 spherical tokamak

AU - Ejiri, A.

AU - Shiraiwa, S.

AU - Takase, Y.

AU - Yamada, T.

AU - Nagashima, Y.

AU - Kasahara, H.

AU - Iijima, D.

AU - Kobori, Y.

AU - Nishi, T.

AU - Taniguchi, T.

AU - Aramasu, M.

AU - Ohara, S.

AU - Ushigome, M.

AU - Yamagishi, K.

PY - 2003/7

Y1 - 2003/7

N2 - Various types of MHD events including internal reconnection events are studied on the TST-2 spherical tokamak. In weak MHD events no positive current spike was observed, but in strong MHD events with positive current spikes, a rapid and significant impurity ion temperature increase was observed. The decrease in the poloidal magnetic energy is the most probable energy source for ion heating. The plasma current shows a stepwise change. The magnitude of this step correlates with the temperature increase and is found to be a good indicator of the strength of each event.

AB - Various types of MHD events including internal reconnection events are studied on the TST-2 spherical tokamak. In weak MHD events no positive current spike was observed, but in strong MHD events with positive current spikes, a rapid and significant impurity ion temperature increase was observed. The decrease in the poloidal magnetic energy is the most probable energy source for ion heating. The plasma current shows a stepwise change. The magnitude of this step correlates with the temperature increase and is found to be a good indicator of the strength of each event.

UR - https://www.scopus.com/pages/publications/0042807393

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U2 - 10.1088/0029-5515/43/7/306

DO - 10.1088/0029-5515/43/7/306

M3 - Article

AN - SCOPUS:0042807393

SN - 0029-5515

VL - 43

SP - 547

EP - 552

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 7

ER -

Ion temperature increase during MHD events on the TST-2 spherical tokamak

Abstract

All Science Journal Classification (ASJC) codes

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