Analysis of the scrape-off layer plasma in toroidal helical systems

K. Itoh, K. Nagasaki, S. I. Itoh, A. Fukuyama

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The connection length L between the magnetic field line and the wall in the scrape-off layer (SOL) region in toroidal helical systems is analysed. It is found that this connection length has a logarithmic dependence on the distance from the outermost magnetic surface to the field line under consideration. Using this dependence in a fluid model, the spatial distribution of the plasma in the SOL region is studied analytically. The edge temperature scales approximately as P0.36 (P being the power flow to the SOL region), as for tokamaks. For a given value of P, the edge temperature in toroidal helical systems is lower than in tokamaks with a similar minor radius.

Original languageEnglish
Pages (from-to)1299-1305
Number of pages7
JournalNuclear Fusion
Volume29
Issue number8
DOIs
Publication statusPublished - Aug 1989

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plasma layers
temperature scales
spatial distribution
radii
fluids
magnetic fields
temperature

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Itoh, K., Nagasaki, K., Itoh, S. I., & Fukuyama, A. (1989). Analysis of the scrape-off layer plasma in toroidal helical systems. Nuclear Fusion, 29(8), 1299-1305. https://doi.org/10.1088/0029-5515/29/8/006

Analysis of the scrape-off layer plasma in toroidal helical systems. / Itoh, K.; Nagasaki, K.; Itoh, S. I.; Fukuyama, A.

In: Nuclear Fusion, Vol. 29, No. 8, 08.1989, p. 1299-1305.

Research output: Contribution to journalArticle

Itoh, K, Nagasaki, K, Itoh, SI & Fukuyama, A 1989, 'Analysis of the scrape-off layer plasma in toroidal helical systems', Nuclear Fusion, vol. 29, no. 8, pp. 1299-1305. https://doi.org/10.1088/0029-5515/29/8/006
Itoh, K. ; Nagasaki, K. ; Itoh, S. I. ; Fukuyama, A. / Analysis of the scrape-off layer plasma in toroidal helical systems. In: Nuclear Fusion. 1989 ; Vol. 29, No. 8. pp. 1299-1305.
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