Vacuum Configurations of D Shape Heliotron

• ICHIGUCHI Katsuji

  National Institute for Fusion Science SOKENDAI, The Graduate University for Advanced Studies

• SUZUKI Yasuhiro

  National Institute for Fusion Science SOKENDAI, The Graduate University for Advanced Studies

Abstract

The effects of the deformation of the flux surfaces into a “D shape” on vacuum heliotron configurations are examined numerically. In this study, one poloidal coil on the mid plane just inside the helical coils is assumed to be installed so that the current in the coil can deform the surface shape. Such deformation gives the advantage that the clearance between the helical coil and the outermost surface can be enlarged, which is crucial for the divertor action in heliotrons. The effects of the deformation on other vacuum properties are also discussed, such as rotational transform, magnetic well, and |B|_min contour. We also focus on such effects on downsized configurations.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 14 (0), 3403100-3403100, 2019-06-19

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• heliotron
• vacuum magnetic configuration
• numerical study
• flux surface
• divertor clearance
• D shape

Details

• CRID: 1390845713081302016
• NII Article ID: 130007672284
• NII Book ID: AA12346675
• DOI: 10.1585/pfr.14.3403100
• ISSN: 18806821
• HANDLE: 10655/00013250
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/11320
• Web Site: https://www.jstage.jst.go.jp/article/pfr/14/0/14_3403100/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed