Influence of the static magnetic island on the density profiles in LHD

K. Tanaka, K. Ida, N. Ohyabu, K. Kawahata, T. Tokuzawa, K. Narihara, T. Morisaki, S. Inagaki, Y. Nagayama, B. J. Peterson, S. Sakakibara, H. Yamada, A. Komori, O. Kaneko

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)

Abstract

The flattening of the electron density profiles due to the static magnetic island is observed when the n/m = 1/1 perturbation field is applied by the external coil. The iso-density widths are estimated from the model fitting analysis. The temporal history of the iso-density width and its dependence on normalized collision frequency and plasma β are estimated from a single shot. The iso-density width increases as the external perturbation field increases. Although determination errors are not small compared with the dynamic range of the estimated iso-density width, the following tendencies are observed. The iso-density width shows positive dependence on logarithm of normalized collision frequency and negative dependence on β.

Original languageEnglish
Pages (from-to)A231-A235
JournalPlasma Physics and Controlled Fusion
Volume44
Issue number5 A
DOIs
Publication statusPublished - May 2002
Externally publishedYes
Event8th IAEA Technical Committee Meeting on H-Mode Physics and Transport Barriers - Toki, Japan
Duration: Sep 5 2001Sep 7 2001

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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