Validation of neoclassical bootstrap current models in the edge of an H-mode plasma

M. R. Wade; M. Murakami; P. A. Politzer

doi:10.1103/PhysRevLett.92.235005

Validation of neoclassical bootstrap current models in the edge of an H-mode plasma

M. R. Wade, M. Murakami, P. A. Politzer

Fusion and Fission Energy and Science Di

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

39 Scopus citations

Abstract

A series of magnetic equilibrium following the L-H transition in the DIII-D tokamak, were analyzed. This analysis was performed for a time slice (t=2.1s) just before the end of the edge localized mode-free phase of the discharge. The analysis confirmed the activation of a large non-inductive current source near the plasma edge coincident with the increase in the pressure gradient in this region. The results indicate that the magnitude and radial shape of the noninductive current is quantitatively consistent with neoclassical predictions for the bootstrap current.

Original language	English
Article number	235005
Pages (from-to)	235005-1-235005-4
Journal	Physical Review Letters
Volume	92
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.92.235005
State	Published - Jun 11 2004

Funding

This is a report of work supported by the U.S. Department of Energy under Contracts No. DE-AC05-00OR22725 and No. DE-AC03-99ER54463.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725, DE-AC03-99ER54463
U.S. Department of Energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1103/PhysRevLett.92.235005

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abstract = "A series of magnetic equilibrium following the L-H transition in the DIII-D tokamak, were analyzed. This analysis was performed for a time slice (t=2.1s) just before the end of the edge localized mode-free phase of the discharge. The analysis confirmed the activation of a large non-inductive current source near the plasma edge coincident with the increase in the pressure gradient in this region. The results indicate that the magnitude and radial shape of the noninductive current is quantitatively consistent with neoclassical predictions for the bootstrap current.",

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AU - Murakami, M.

AU - Politzer, P. A.

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AB - A series of magnetic equilibrium following the L-H transition in the DIII-D tokamak, were analyzed. This analysis was performed for a time slice (t=2.1s) just before the end of the edge localized mode-free phase of the discharge. The analysis confirmed the activation of a large non-inductive current source near the plasma edge coincident with the increase in the pressure gradient in this region. The results indicate that the magnitude and radial shape of the noninductive current is quantitatively consistent with neoclassical predictions for the bootstrap current.

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Validation of neoclassical bootstrap current models in the edge of an H-mode plasma

Abstract

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UN SDGs

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