You need JavaScript to view this

Three-dimensional MHD equilibrium in the presence of bootstrap current for Large Helical Device (LHD)

Technical Report:

Abstract

Three-dimensional MHD equilibria including the bootstrap current self-consistently are studied for the Large Helical Device (LHD). Magnitude of the bootstrap current is sensitive to the magnetic axis position or Shafranov shift in LHD, which is proportional to the plasma pressure and inversely proportional to the rotational transform. Since the bootstrap current enhances the rotational transform and reduces Shafranov shift, the self-consistent MHD equilibrium is crucial to estimate the bootstrap current. Total bootstrap current easily exceeds 100kA for LHD plasmas with <{beta}> > or approx. 1% under the assumption that both electrons and ions belong to the rare-collisional 1/{nu} regime in the whole plasma region, where <{beta}> is a volume averaged beta value. Effects of the vertical field, the quadrupole field and the pressure profile on the bootstrap current are also investigated. (author).
Authors:
Watanabe, K; [1]  Nakajima, N; Okamoto, M; Nakamura, Y; Wakatani, M
  1. Kyoto Univ. (Japan). Faculty of Engineering
Publication Date:
Mar 01, 1992
Product Type:
Technical Report
Report Number:
NIFS-139
Reference Number:
SCA: 700370; PA: JPN-92:011232; SN: 93000918637
Resource Relation:
Other Information: PBD: Mar 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; STELLARATORS; MHD EQUILIBRIUM; HELICAL CONFIGURATION; ROTATIONAL TRANSFORM; PLASMA; MAGNETIC CONFINEMENT; COMPUTER CALCULATIONS; HELIOTRON; V CODES; BETA RATIO; THREE-DIMENSIONAL CALCULATIONS; MAGNETIC SURFACES; BOOTSTRAP CURRENT; 700370; PLASMA FLUID AND MHD PROPERTIES
OSTI ID:
10111289
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93753311; TRN: JP9211232
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
45 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Watanabe, K, Nakajima, N, Okamoto, M, Nakamura, Y, and Wakatani, M. Three-dimensional MHD equilibrium in the presence of bootstrap current for Large Helical Device (LHD). Japan: N. p., 1992. Web.
Watanabe, K, Nakajima, N, Okamoto, M, Nakamura, Y, & Wakatani, M. Three-dimensional MHD equilibrium in the presence of bootstrap current for Large Helical Device (LHD). Japan.
Watanabe, K, Nakajima, N, Okamoto, M, Nakamura, Y, and Wakatani, M. 1992. "Three-dimensional MHD equilibrium in the presence of bootstrap current for Large Helical Device (LHD)." Japan.
@misc{etde_10111289,
title = {Three-dimensional MHD equilibrium in the presence of bootstrap current for Large Helical Device (LHD)}
author = {Watanabe, K, Nakajima, N, Okamoto, M, Nakamura, Y, and Wakatani, M}
abstractNote = {Three-dimensional MHD equilibria including the bootstrap current self-consistently are studied for the Large Helical Device (LHD). Magnitude of the bootstrap current is sensitive to the magnetic axis position or Shafranov shift in LHD, which is proportional to the plasma pressure and inversely proportional to the rotational transform. Since the bootstrap current enhances the rotational transform and reduces Shafranov shift, the self-consistent MHD equilibrium is crucial to estimate the bootstrap current. Total bootstrap current easily exceeds 100kA for LHD plasmas with <{beta}> > or approx. 1% under the assumption that both electrons and ions belong to the rare-collisional 1/{nu} regime in the whole plasma region, where <{beta}> is a volume averaged beta value. Effects of the vertical field, the quadrupole field and the pressure profile on the bootstrap current are also investigated. (author).}
place = {Japan}
year = {1992}
month = {Mar}
}