Effect of SOL decay length on modeling of divertor detachment by using simple core-SOL-divertor model

R. Hiwatari, Akiyoshi Hatayama, T. Takizuka

Research output: Contribution to journalArticle

Abstract

Taken impurity radiation and momentum loss in the divertor region into consideration, the applicability of Core-SOL-Divertor(CSD) model to the divertor detachment is investigated. Three solutions for the low recycling state, the high recycling state and the detached state can be obtained from the CSD model. The dependence of the ratio of the decay length for the density (Δn) and temperature (ΔT ) in the SOL region is also examined, and it is found that ΔnT ∼ T8 0.5 s scaled by the SOL temperature (T s), which is based on the experimental data, has a good potential to reproduce B2-EIRENE results.

Original languageEnglish
Pages (from-to)174-178
Number of pages5
JournalContributions to Plasma Physics
Volume48
Issue number1-3
DOIs
Publication statusPublished - 2008 Mar

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detachment
decay
recycling
momentum
impurities
temperature
radiation

Keywords

  • Detached plasma
  • Divertor
  • SOL
  • SOL decay length
  • Two-point model

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Effect of SOL decay length on modeling of divertor detachment by using simple core-SOL-divertor model. / Hiwatari, R.; Hatayama, Akiyoshi; Takizuka, T.

In: Contributions to Plasma Physics, Vol. 48, No. 1-3, 03.2008, p. 174-178.

Research output: Contribution to journalArticle

Hiwatari, R. ; Hatayama, Akiyoshi ; Takizuka, T. / Effect of SOL decay length on modeling of divertor detachment by using simple core-SOL-divertor model. In: Contributions to Plasma Physics. 2008 ; Vol. 48, No. 1-3. pp. 174-178.
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