Plasma and Fusion Research

Volume 3, 036 (2008)

Regular Articles

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

Maxim Yu. ISAEV, Kiyomasa Y. WATANABE¹⁾, Masayuki YOKOYAMA¹⁾, Nobuyoshi OHYABU¹⁾, Craig D. BEIDLER²⁾, Henning MAASSBERG²⁾, Wilfred A. COOPER³⁾, Trach-Minh TRAN³⁾ and Mikhail I. MIKHAILOV

Russian Research Center “Kurchatov Institute”, Moscow, 123182, Russia
1): National Institute for Fusion Science, Toki, 509-5292, Japan
2): Max-Planck Institute für Plasma Physik, D-17491, Greifswald, Germany
3): Centre de Recherches en Physique des Plasmas, CH-1015, Lausanne, Suisse

(Received 18 November 2007 / Accepted 16 April 2008 / Published 7 July 2008)

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.

Keywords

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

DOI: 10.1585/pfr.3.036

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Publisher's Note

This article was originally published with a typographical error in the page 036-1. The article has been corrected as follows:
P.036-1, name of the 5th author: "Cleg D. BEIDLER" -> "Craig D. BEIDLER".

This paper may be cited as follows:

Maxim Yu. ISAEV, Kiyomasa Y. WATANABE, Masayuki YOKOYAMA, Nobuyoshi OHYABU, Craig D. BEIDLER, Henning MAASSBERG, Wilfred A. COOPER, Trach-Minh TRAN and Mikhail I. MIKHAILOV, Plasma Fusion Res. 3, 036 (2008).

(Revised 20 August 2008)