LHD Bootstrap Current Coefficient Calculations with the VENUS+δ f code

Maxim Yu. ISAEV; Kiyomasa Y. WATANABE; Masayuki YOKOYAMA; Nobuyoshi OHYABU; Craig D. BEIDLER; Henning MAASSBERG; Wilfred A. COOPER; Trach-Minh TRAN; Mikhail I. MIKHAILOV

doi:10.1585/pfr.3.036

Regular Articles

LHD Bootstrap Current Coefficient Calculations with the VENUS+δ f code

Maxim Yu. ISAEV, Kiyomasa Y. WATANABE, Masayuki YOKOYAMA, Nobuyoshi OHYABU, Craig D. BEIDLER, Henning MAASSBERG, Wilfred A. COOPER, Trach-Minh TRAN, Mikhail I. MIKHAILOV

Author information

Maxim Yu. ISAEV
Russian Research Center “Kurchatov Institute”, Moscow, 123182, Russia
Kiyomasa Y. WATANABE
National Institute for Fusion Science, Toki, 509-5292, Japan
Masayuki YOKOYAMA
National Institute for Fusion Science, Toki, 509-5292, Japan
Nobuyoshi OHYABU
National Institute for Fusion Science, Toki, 509-5292, Japan
Craig D. BEIDLER
Max-Planck Institute für Plasma Physik, D-17491, Greifswald, Germany
Henning MAASSBERG
Max-Planck Institute für Plasma Physik, D-17491, Greifswald, Germany
Wilfred A. COOPER
Centre de Recherches en Physique des Plasmas, CH-1015, Lausanne, Suisse
Trach-Minh TRAN
Centre de Recherches en Physique des Plasmas, CH-1015, Lausanne, Suisse
Mikhail I. MIKHAILOV
Russian Research Center “Kurchatov Institute”, Moscow, 123182, Russia

Keywords: heliotron, stellarator, magnetic configuration, neoclassical transport, bootstrap current, 3D numerical orbit, δf method

JOURNAL FREE ACCESS

2008 Volume 3 Pages 036

DOI https://doi.org/10.1585/pfr.3.036

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Abstract

Normalized bootstrap current coefficients are calculated for Large Helical Device (LHD, Japan) plasma configurations with different magnetic axis positions using the VENUS+δf code [Fusion Sci. Technol. 50, 440 (2006)]. The dependences on the different collisionality regimes (over the full experimental range of LHD plasma discharges) and the plasma radii are presented. The comparison of the VENUS+δf, SPBSC and DKES codes results is shown. The approach to the LHD experimental results is discussed. The bootstrap current effect on the iota = 1 islands is considered.

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