Stability analysis of H-mode pedestal and edge localized modes in a Joint European Torus power scan

Thawatchai Onjun; Arnold H. Kritz; Glenn Bateman; Vassili Parail; Howard Wilson; Johnny Lönnroth; Guido Huysmans; Alex Dnestrovskij

doi:10.1063/1.1668646

Stability analysis of H-mode pedestal and edge localized modes in a Joint European Torus power scan

Thawatchai Onjun, Arnold H. Kritz, Glenn Bateman, Vassili Parail, Howard Wilson, Johnny Lönnroth, Guido Huysmans, Alex Dnestrovskij

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

13 Scopus citations

Abstract

The three Joint European Torus (JET) discharges in a power scan were investigated to study the role of heating power in the prediction of the pedestal height. It was found that the current-driven peeling modes trigger the edge localized modes (ELM) crashes in these discharges. The pressure gradient and the related bootstrap current density at the edge of plasma rapidly increased with increasing heating power after each ELM crash. The results show that the pedestal pressure rises to higher values with increasing heating power during an ELM cycle.

Original language	English
Pages (from-to)	1469-1475
Number of pages	7
Journal	Physics of Plasmas
Volume	11
Issue number	4
DOIs	https://doi.org/10.1063/1.1668646
State	Published - Apr 2004
Externally published	Yes

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title = "Stability analysis of H-mode pedestal and edge localized modes in a Joint European Torus power scan",

abstract = "The three Joint European Torus (JET) discharges in a power scan were investigated to study the role of heating power in the prediction of the pedestal height. It was found that the current-driven peeling modes trigger the edge localized modes (ELM) crashes in these discharges. The pressure gradient and the related bootstrap current density at the edge of plasma rapidly increased with increasing heating power after each ELM crash. The results show that the pedestal pressure rises to higher values with increasing heating power during an ELM cycle.",

author = "Thawatchai Onjun and Kritz, \{Arnold H.\} and Glenn Bateman and Vassili Parail and Howard Wilson and Johnny L{\"o}nnroth and Guido Huysmans and Alex Dnestrovskij",

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AU - Onjun, Thawatchai

AU - Kritz, Arnold H.

AU - Bateman, Glenn

AU - Parail, Vassili

AU - Wilson, Howard

AU - Lönnroth, Johnny

AU - Huysmans, Guido

AU - Dnestrovskij, Alex

PY - 2004/4

Y1 - 2004/4

N2 - The three Joint European Torus (JET) discharges in a power scan were investigated to study the role of heating power in the prediction of the pedestal height. It was found that the current-driven peeling modes trigger the edge localized modes (ELM) crashes in these discharges. The pressure gradient and the related bootstrap current density at the edge of plasma rapidly increased with increasing heating power after each ELM crash. The results show that the pedestal pressure rises to higher values with increasing heating power during an ELM cycle.

AB - The three Joint European Torus (JET) discharges in a power scan were investigated to study the role of heating power in the prediction of the pedestal height. It was found that the current-driven peeling modes trigger the edge localized modes (ELM) crashes in these discharges. The pressure gradient and the related bootstrap current density at the edge of plasma rapidly increased with increasing heating power after each ELM crash. The results show that the pedestal pressure rises to higher values with increasing heating power during an ELM cycle.

UR - https://www.scopus.com/pages/publications/2542493174

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DO - 10.1063/1.1668646

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JO - Physics of Plasmas

JF - Physics of Plasmas

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ER -

Stability analysis of H-mode pedestal and edge localized modes in a Joint European Torus power scan

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