Electron acceleration by magnetic reconnection during spherical tokamak merging experiment

Shuji Kamio; Kotaro Yamasaki; Koichiro Takemura; Qinghong Cao; Takenori G. Watanabe; Hirotomo Itagaki; Toshiki Tsutsui; Koji Ishiguchi; Ryota Imazawa; Takuma Yamada; Chio Zong Cheng; Michiaki Inomoto; Yuichi Takase; Yasushi Ono

doi:10.1541/ieejfms.133.166

Electron acceleration by magnetic reconnection during spherical tokamak merging experiment

Shuji Kamio, Kotaro Yamasaki, Koichiro Takemura, Qinghong Cao, Takenori G. Watanabe, Hirotomo Itagaki, Toshiki Tsutsui, Koji Ishiguchi, Ryota Imazawa, Takuma Yamada, Chio Zong Cheng, Michiaki Inomoto, Yuichi Takase, Yasushi Ono

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

1 Citation (Scopus)

Abstract

Electron acceleration in magnetic reconnection event has been experimentally investigated using the plasma merging technique in the University of Tokyo Spherical Tokamak (UTST) device. Intense emission of He II line (468.58 nm) was observed only in the vicinity of the X-point by using a multi-channel spectroscopic measurement system. This localized emission indicates the generation of energetic electrons inside the current sheet region, possibly due to the electron acceleration by the strong toroidal electric field induced by magnetic reconnection in the presence of a guide field.

Original language	English
Pages (from-to)	166-172
Number of pages	7
Journal	IEEJ Transactions on Fundamentals and Materials
Volume	133
Issue number	4
DOIs	https://doi.org/10.1541/ieejfms.133.166
Publication status	Published - 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1541/ieejfms.133.166

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Kamio, S., Yamasaki, K., Takemura, K., Cao, Q., Watanabe, T. G., Itagaki, H., Tsutsui, T., Ishiguchi, K., Imazawa, R., Yamada, T., Cheng, C. Z., Inomoto, M., Takase, Y., & Ono, Y. (2013). Electron acceleration by magnetic reconnection during spherical tokamak merging experiment. IEEJ Transactions on Fundamentals and Materials, 133(4), 166-172. https://doi.org/10.1541/ieejfms.133.166

Electron acceleration by magnetic reconnection during spherical tokamak merging experiment. / Kamio, Shuji; Yamasaki, Kotaro; Takemura, Koichiro; Cao, Qinghong; Watanabe, Takenori G.; Itagaki, Hirotomo; Tsutsui, Toshiki; Ishiguchi, Koji; Imazawa, Ryota; Yamada, Takuma; Cheng, Chio Zong; Inomoto, Michiaki; Takase, Yuichi; Ono, Yasushi.

In: IEEJ Transactions on Fundamentals and Materials, Vol. 133, No. 4, 2013, p. 166-172.

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

Kamio, S, Yamasaki, K, Takemura, K, Cao, Q, Watanabe, TG, Itagaki, H, Tsutsui, T, Ishiguchi, K, Imazawa, R, Yamada, T, Cheng, CZ, Inomoto, M, Takase, Y & Ono, Y 2013, 'Electron acceleration by magnetic reconnection during spherical tokamak merging experiment', IEEJ Transactions on Fundamentals and Materials, vol. 133, no. 4, pp. 166-172. https://doi.org/10.1541/ieejfms.133.166

Kamio, Shuji ; Yamasaki, Kotaro ; Takemura, Koichiro ; Cao, Qinghong ; Watanabe, Takenori G. ; Itagaki, Hirotomo ; Tsutsui, Toshiki ; Ishiguchi, Koji ; Imazawa, Ryota ; Yamada, Takuma ; Cheng, Chio Zong ; Inomoto, Michiaki ; Takase, Yuichi ; Ono, Yasushi. / Electron acceleration by magnetic reconnection during spherical tokamak merging experiment. In: IEEJ Transactions on Fundamentals and Materials. 2013 ; Vol. 133, No. 4. pp. 166-172.

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abstract = "Electron acceleration in magnetic reconnection event has been experimentally investigated using the plasma merging technique in the University of Tokyo Spherical Tokamak (UTST) device. Intense emission of He II line (468.58 nm) was observed only in the vicinity of the X-point by using a multi-channel spectroscopic measurement system. This localized emission indicates the generation of energetic electrons inside the current sheet region, possibly due to the electron acceleration by the strong toroidal electric field induced by magnetic reconnection in the presence of a guide field.",

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doi = "10.1541/ieejfms.133.166",

language = "English",

volume = "133",

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T1 - Electron acceleration by magnetic reconnection during spherical tokamak merging experiment

AU - Kamio, Shuji

AU - Yamasaki, Kotaro

AU - Takemura, Koichiro

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AU - Watanabe, Takenori G.

AU - Itagaki, Hirotomo

AU - Tsutsui, Toshiki

AU - Ishiguchi, Koji

AU - Imazawa, Ryota

AU - Yamada, Takuma

AU - Cheng, Chio Zong

AU - Inomoto, Michiaki

AU - Takase, Yuichi

AU - Ono, Yasushi

PY - 2013

Y1 - 2013

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AB - Electron acceleration in magnetic reconnection event has been experimentally investigated using the plasma merging technique in the University of Tokyo Spherical Tokamak (UTST) device. Intense emission of He II line (468.58 nm) was observed only in the vicinity of the X-point by using a multi-channel spectroscopic measurement system. This localized emission indicates the generation of energetic electrons inside the current sheet region, possibly due to the electron acceleration by the strong toroidal electric field induced by magnetic reconnection in the presence of a guide field.

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Electron acceleration by magnetic reconnection during spherical tokamak merging experiment

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