Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron

I. Yamada, S. Kubo, K. Watanabe, H. Iguchi, S. Okamura, S. Morita, Hiroshi Idei, I. Yamada, H. Arimoto, K. Matsuoka, K. Nishimura, S. Sakakibara, C. Takahashi, Y. Takita

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The bootstrap current and electron thermal conductivity have been investigated in ECRH plasmas on the CHS heliotron/torsatron. The neoclassical transport coefficients have been externally controlled over a wide range by changing the ellipticity of the plasma cross-section. While local thermal conductivity, as well as global confinement, have shown inconsistency with the neoclassical predictions, the observed toroidal net current has been successfully explained by considering the three dimensional geometry with the available neoclassical theory. The present experimental results indicate that the transport parallel to the magnetic field lines (bootstrap current) is likely to be neoclassical but that the perpendicular transport (thermal conductivity) is anomalous, which is common in current less plasmas as well as tokamaks.

Original languageEnglish
Article numberI12
Pages (from-to)641-647
Number of pages7
JournalNuclear Fusion
Volume34
Issue number5
DOIs
Publication statusPublished - Dec 1 1994

Fingerprint

thermal conductivity
line current
electrons
ellipticity
transport properties
cross sections
geometry
predictions
magnetic fields

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Yamada, I., Kubo, S., Watanabe, K., Iguchi, H., Okamura, S., Morita, S., ... Takita, Y. (1994). Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron. Nuclear Fusion, 34(5), 641-647. [I12]. https://doi.org/10.1088/0029-5515/34/5/I12

Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron. / Yamada, I.; Kubo, S.; Watanabe, K.; Iguchi, H.; Okamura, S.; Morita, S.; Idei, Hiroshi; Yamada, I.; Arimoto, H.; Matsuoka, K.; Nishimura, K.; Sakakibara, S.; Takahashi, C.; Takita, Y.

In: Nuclear Fusion, Vol. 34, No. 5, I12, 01.12.1994, p. 641-647.

Research output: Contribution to journalArticle

Yamada, I, Kubo, S, Watanabe, K, Iguchi, H, Okamura, S, Morita, S, Idei, H, Yamada, I, Arimoto, H, Matsuoka, K, Nishimura, K, Sakakibara, S, Takahashi, C & Takita, Y 1994, 'Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron', Nuclear Fusion, vol. 34, no. 5, I12, pp. 641-647. https://doi.org/10.1088/0029-5515/34/5/I12
Yamada, I. ; Kubo, S. ; Watanabe, K. ; Iguchi, H. ; Okamura, S. ; Morita, S. ; Idei, Hiroshi ; Yamada, I. ; Arimoto, H. ; Matsuoka, K. ; Nishimura, K. ; Sakakibara, S. ; Takahashi, C. ; Takita, Y. / Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron. In: Nuclear Fusion. 1994 ; Vol. 34, No. 5. pp. 641-647.
@article{0cb49b0a5a3b427fb93af9639208dbe4,
title = "Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron",
abstract = "The bootstrap current and electron thermal conductivity have been investigated in ECRH plasmas on the CHS heliotron/torsatron. The neoclassical transport coefficients have been externally controlled over a wide range by changing the ellipticity of the plasma cross-section. While local thermal conductivity, as well as global confinement, have shown inconsistency with the neoclassical predictions, the observed toroidal net current has been successfully explained by considering the three dimensional geometry with the available neoclassical theory. The present experimental results indicate that the transport parallel to the magnetic field lines (bootstrap current) is likely to be neoclassical but that the perpendicular transport (thermal conductivity) is anomalous, which is common in current less plasmas as well as tokamaks.",
author = "I. Yamada and S. Kubo and K. Watanabe and H. Iguchi and S. Okamura and S. Morita and Hiroshi Idei and I. Yamada and H. Arimoto and K. Matsuoka and K. Nishimura and S. Sakakibara and C. Takahashi and Y. Takita",
year = "1994",
month = "12",
day = "1",
doi = "10.1088/0029-5515/34/5/I12",
language = "English",
volume = "34",
pages = "641--647",
journal = "Nuclear Fusion",
issn = "0029-5515",
publisher = "IOP Publishing Ltd.",
number = "5",

}

TY - JOUR

T1 - Response of bootstrap current and electron thermal conductivity to shaping in an ECRH plasma in the CHS heliotron/torsatron

AU - Yamada, I.

AU - Kubo, S.

AU - Watanabe, K.

AU - Iguchi, H.

AU - Okamura, S.

AU - Morita, S.

AU - Idei, Hiroshi

AU - Yamada, I.

AU - Arimoto, H.

AU - Matsuoka, K.

AU - Nishimura, K.

AU - Sakakibara, S.

AU - Takahashi, C.

AU - Takita, Y.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - The bootstrap current and electron thermal conductivity have been investigated in ECRH plasmas on the CHS heliotron/torsatron. The neoclassical transport coefficients have been externally controlled over a wide range by changing the ellipticity of the plasma cross-section. While local thermal conductivity, as well as global confinement, have shown inconsistency with the neoclassical predictions, the observed toroidal net current has been successfully explained by considering the three dimensional geometry with the available neoclassical theory. The present experimental results indicate that the transport parallel to the magnetic field lines (bootstrap current) is likely to be neoclassical but that the perpendicular transport (thermal conductivity) is anomalous, which is common in current less plasmas as well as tokamaks.

AB - The bootstrap current and electron thermal conductivity have been investigated in ECRH plasmas on the CHS heliotron/torsatron. The neoclassical transport coefficients have been externally controlled over a wide range by changing the ellipticity of the plasma cross-section. While local thermal conductivity, as well as global confinement, have shown inconsistency with the neoclassical predictions, the observed toroidal net current has been successfully explained by considering the three dimensional geometry with the available neoclassical theory. The present experimental results indicate that the transport parallel to the magnetic field lines (bootstrap current) is likely to be neoclassical but that the perpendicular transport (thermal conductivity) is anomalous, which is common in current less plasmas as well as tokamaks.

UR - http://www.scopus.com/inward/record.url?scp=0028426422&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028426422&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/34/5/I12

DO - 10.1088/0029-5515/34/5/I12

M3 - Article

VL - 34

SP - 641

EP - 647

JO - Nuclear Fusion

JF - Nuclear Fusion

SN - 0029-5515

IS - 5

M1 - I12

ER -