Investigation on ripple loss reduction by ferritic steel plate insertion in JFT-2M: Comparison between experimental and computational data

M. Sato, H. Kimura, Y. Miura, T. Nakayama, K. Tobita, H. Kawashima, K. Tsuzuki, N. Isei

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Ripple loss reduction resulting in reduced losses of fast ions was demonstrated successfully at the JFT-2M tokamak by installing ferritic plates between the vacuum vessel and toroidal field coils. This paper describes the comparison between the experimental results and computation based on the orbit following a Monte Carlo code. They are in qualitatively good agreement in the cases where the toroidal distribution of the toroidal field ripple is almost periodic (e.g. ferritic plate installed resulting in a complex periodic structure of the magnetic ripple), but differ in the case of toroidally small average ripple exhibiting non-periodic large local ones (e.g. ferritic plate installed resulting in a more complex non-periodic structure of the magnetic ripple).

Original languageEnglish
Pages (from-to)1008-1013
Number of pages6
JournalNuclear Fusion
Volume42
Issue number8
DOIs
Publication statusPublished - 2002 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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