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

R. Hiwatari; A. Hatayama; T. Takizuka

doi:10.1002/ctpp.200810031

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

R. Hiwatari, A. Hatayama, T. Takizuka

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

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 (Δ_n) and temperature (Δ_T ) in the SOL region is also examined, and it is found that Δ_n/Δ_T ∼ 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 language	English
Pages (from-to)	174-178
Number of pages	5
Journal	Contributions to Plasma Physics
Volume	48
Issue number	1-3
DOIs	https://doi.org/10.1002/ctpp.200810031
Publication status	Published - 2008 Mar 1

Keywords

Detached plasma
Divertor
SOL
SOL decay length
Two-point model

ASJC Scopus subject areas

Condensed Matter Physics

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10.1002/ctpp.200810031

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title = "Effect of SOL decay length on modeling of divertor detachment by using simple core-SOL-divertor model",

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 Δn/ΔT ∼ T80.5 s scaled by the SOL temperature (T s), which is based on the experimental data, has a good potential to reproduce B2-EIRENE results.",

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T1 - Effect of SOL decay length on modeling of divertor detachment by using simple core-SOL-divertor model

AU - Hiwatari, R.

AU - Hatayama, A.

AU - Takizuka, T.

PY - 2008/3/1

Y1 - 2008/3/1

N2 - 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 Δn/ΔT ∼ T80.5 s scaled by the SOL temperature (T s), which is based on the experimental data, has a good potential to reproduce B2-EIRENE results.

AB - 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 Δn/ΔT ∼ T80.5 s scaled by the SOL temperature (T s), which is based on the experimental data, has a good potential to reproduce B2-EIRENE results.

KW - Detached plasma

KW - Divertor

KW - SOL

KW - SOL decay length

KW - Two-point model

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

Abstract

Keywords

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