Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe

Tomohiro Morisaki; Akio Komori; Kazuo Toi; Akira Ando; Akira Ejiri; Katsumi Ida; Harukazu Iguchi; Yoshinobu Kawai; Keisuke Matsuoka; Shigeru Morita; Osamu Motojima; Kiyohiko Nishimura; Shoichi Okamura; Satoru Sakakibara; Chihiro Takahashi; Kenji Tanaka; Hiroshi Yamada

doi:10.1143/JPSJ.65.133

Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe

Tomohiro Morisaki, Akio Komori, Kazuo Toi, Akira Ando, Akira Ejiri, Katsumi Ida, Harukazu Iguchi, Yoshinobu Kawai, Keisuke Matsuoka, Shigeru Morita, Osamu Motojima, Kiyohiko Nishimura, Shoichi Okamura, Satoru Sakakibara, Chihiro Takahashi, Kenji Tanaka, Hiroshi Yamada

ENG - Electrical Engineering

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

2 Citations (Scopus)

Abstract

Simultaneous measurements of electron density and its fluctuations were performed successfully in the CHS edge plasma during the L-H transition with a thermal neutral lithium beam probe. Very rapid formation of edge particle transport barrier within 0.1 msec was observed at the L-H transition, i.e., steepening of the edge electron density profile and reduction of the outward particle flux. The reduction of the fluctuation amplitude was also observed in the edge region, which was thought to be related to the formation of the edge particle transport barrier.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Journal of the Physical Society of Japan
Volume	65
Issue number	1
DOIs	https://doi.org/10.1143/JPSJ.65.133
Publication status	Published - 1996

Keywords

Edge plasma
Edge transport barrier
L-H transition
Thermal neutral lithium beam probe

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10.1143/JPSJ.65.133

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Morisaki, T., Komori, A., Toi, K., Ando, A., Ejiri, A., Ida, K., Iguchi, H., Kawai, Y., Matsuoka, K., Morita, S., Motojima, O., Nishimura, K., Okamura, S., Sakakibara, S., Takahashi, C., Tanaka, K., & Yamada, H. (1996). Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe. Journal of the Physical Society of Japan, 65(1), 133-138. https://doi.org/10.1143/JPSJ.65.133

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title = "Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe",

abstract = "Simultaneous measurements of electron density and its fluctuations were performed successfully in the CHS edge plasma during the L-H transition with a thermal neutral lithium beam probe. Very rapid formation of edge particle transport barrier within 0.1 msec was observed at the L-H transition, i.e., steepening of the edge electron density profile and reduction of the outward particle flux. The reduction of the fluctuation amplitude was also observed in the edge region, which was thought to be related to the formation of the edge particle transport barrier.",

keywords = "Edge plasma, Edge transport barrier, L-H transition, Thermal neutral lithium beam probe",

author = "Tomohiro Morisaki and Akio Komori and Kazuo Toi and Akira Ando and Akira Ejiri and Katsumi Ida and Harukazu Iguchi and Yoshinobu Kawai and Keisuke Matsuoka and Shigeru Morita and Osamu Motojima and Kiyohiko Nishimura and Shoichi Okamura and Satoru Sakakibara and Chihiro Takahashi and Kenji Tanaka and Hiroshi Yamada",

year = "1996",

doi = "10.1143/JPSJ.65.133",

language = "English",

volume = "65",

pages = "133--138",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

number = "1",

}

Morisaki, T, Komori, A, Toi, K, Ando, A, Ejiri, A, Ida, K, Iguchi, H, Kawai, Y, Matsuoka, K, Morita, S, Motojima, O, Nishimura, K, Okamura, S, Sakakibara, S, Takahashi, C, Tanaka, K & Yamada, H 1996, 'Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe', Journal of the Physical Society of Japan, vol. 65, no. 1, pp. 133-138. https://doi.org/10.1143/JPSJ.65.133

TY - JOUR

T1 - Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe

AU - Morisaki, Tomohiro

AU - Komori, Akio

AU - Toi, Kazuo

AU - Ando, Akira

AU - Ejiri, Akira

AU - Ida, Katsumi

AU - Iguchi, Harukazu

AU - Kawai, Yoshinobu

AU - Matsuoka, Keisuke

AU - Morita, Shigeru

AU - Motojima, Osamu

AU - Nishimura, Kiyohiko

AU - Okamura, Shoichi

AU - Sakakibara, Satoru

AU - Takahashi, Chihiro

AU - Tanaka, Kenji

AU - Yamada, Hiroshi

PY - 1996

Y1 - 1996

N2 - Simultaneous measurements of electron density and its fluctuations were performed successfully in the CHS edge plasma during the L-H transition with a thermal neutral lithium beam probe. Very rapid formation of edge particle transport barrier within 0.1 msec was observed at the L-H transition, i.e., steepening of the edge electron density profile and reduction of the outward particle flux. The reduction of the fluctuation amplitude was also observed in the edge region, which was thought to be related to the formation of the edge particle transport barrier.

AB - Simultaneous measurements of electron density and its fluctuations were performed successfully in the CHS edge plasma during the L-H transition with a thermal neutral lithium beam probe. Very rapid formation of edge particle transport barrier within 0.1 msec was observed at the L-H transition, i.e., steepening of the edge electron density profile and reduction of the outward particle flux. The reduction of the fluctuation amplitude was also observed in the edge region, which was thought to be related to the formation of the edge particle transport barrier.

KW - Edge plasma

KW - Edge transport barrier

KW - L-H transition

KW - Thermal neutral lithium beam probe

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DO - 10.1143/JPSJ.65.133

M3 - Article

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SN - 0031-9015

VL - 65

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EP - 138

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 1

ER -

Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe

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Keywords

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