Design concept of conducting shell and in-vessel components suitable for plasma vertical stability and remote maintenance scheme in DEMO reactor

Hiroyasu Utoh, Haruhiko Takase, Yoshiteru Sakamoto, Kenji Tobita, Kazuo Mori, Tatsuya Kudo, Youji Someya, Nobuyuki Asakura, Kazuo Hoshino, Makoto Nakamura, Shinsuke Tokunaga

Research output: Contribution to journalArticle

7 Citations (Scopus)


In order to realize a feasible DEMO, we designed an in-vessel component including the conducting shell. The project is affiliated with the broader approach DEMO design activities and is conceptualized from a plasma vertical stability and engineering viewpoint. The dependence of the plasma vertical stability on the conducing shell parameters and the electromagnetic force at plasma disruption were investigated in numerical simulations (programmed in the 3D eddy current analysis code and a plasma position control code). The simulations assumed the actual shape and position of the vacuum vessel and in-vessel components. The plasma vertical stability was most effectively maintained by the double-loop shell.

Original languageEnglish
Pages (from-to)93-97
Number of pages5
JournalFusion Engineering and Design
Publication statusPublished - 2016 Feb 1
Externally publishedYes



  • Conducting shell
  • DEMO design
  • In-vessel component
  • Plasma vertical stability
  • Remote maintenance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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